Skocz do pozycji: 1.

Tytuł:

Numerical simulations of temperature and velocity fields in the storage tank with the three-coil heat exchanger

Autorzy:

Smusz, Robert
Wilk, Joanna
Bałon, Paweł

Powiązania:

https://bibliotekanauki.pl/articles/176025.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

stratification device
numerical calculations
temperature stratification
coil heat exchanger

Opis:

This article presents the results of the numerical investigation of the thermal stratification in the hot water storage tank. The exchanger consists of three tube coils that are immersed in the storage tank of hot water. Two coils—lower and upper—are designed to warm the water in the tank using the water as a heating medium. Another coil—uses the refrigerant for the waste heat transfer. The temperature stratification device is mounted in the thermal storage tank. The device’s task is to improve the thermal stratification level of heated water. The performed numerical simulations allowed us to obtain the temperature and velocity fields in the storage tank under the conditions of the work of coils filled with water. Calculations were made in the case of the use of the stratification device under the operating conditions of the 10.2478/amst-2019-0015upper and lower coils with water.

Źródło:

Advances in Manufacturing Science and Technology; 2020, 44, 3; 74-79
0137-4478

Pojawia się w:

Advances in Manufacturing Science and Technology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 2.

Tytuł:

Przemiany struktury społecznej na Ukrainie w okresie niezawisłości
Transformations of Social Structure in Ukraine during the Decade of Independence

Autorzy:

Chmelko, W.

Powiązania:

https://bibliotekanauki.pl/articles/2138562.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

labour
macrostructural changes
stratification

Opis:

The paper traces some macrostructural societal changes in the Ukrainian society during the independence, namely, the change of a societal labour structure, the changes of class, institutional, and stratificational structures, and also the change in proportions of some political orientations' distribution among the population of Ukraine.

Źródło:

Studia Socjologiczne; 2004, 4(175); 11-31
0039-3371

Pojawia się w:

Studia Socjologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 3.

Tytuł:

The Homology of Musical Tastes in Poland

Autorzy:

Domański, Henryk
Przybysz, Dariusz
Wyrzykowska, Katarzyna
Zawadzka, Kinga

Powiązania:

https://bibliotekanauki.pl/articles/2076661.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

Musical taste
social stratification
lifestyle

Opis:

The main aim of the analysis is to determine to what extent preference for specific musical genres is related to social position. The study was based on data from a survey conducted in 2019 on a random sample of Poles. The explained phenomena are six genres representing broad spectrum of musical tastes: classical music, jazz, rock, rap, pop, and disco polo. The results of the analysis indicate that the diversity of musical tastes does not come down to one dimension. Family socialization, educational level, and, in part, class position exert the highest impact not only on preferences of classical music but also on liking jazz, rock and disco polo. The class effect appears almost negligent in preference for pop and rap which lead us to general conclusion that cultural stratification does not cover all forms of activity having a selective effect. Musical preferences turn out to be extremely strongly connected with parent’s cultural capital and respondents’ level of education.

Źródło:

Studia Socjologiczne; 2020, 4; 183-211
0039-3371

Pojawia się w:

Studia Socjologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 4.

Tytuł:

Using the Internet to determine fatal cardiovascular risk in the Polish population

Autorzy:

Trzeciak, Bartosz G.
Jaśkiewicz, Michał
Siebert, Janusz

Powiązania:

https://bibliotekanauki.pl/articles/1954079.pdf

Data publikacji:

2004

Wydawca:

Politechnika Gdańska

Tematy:

cardiovascular disease
internet
risk stratification

Opis:

We present the first program in Poland to determine the cardiovascular disease (CVD) risk of individuals, called Ryzyko. The program is freely available at www.ryzyko.amg.gda.pl. Our program, partially based on the European SCORECARD program, takes into account parameters such as age, sex, systolic blood pressure, total cholesterol concentration and cigarette smoking, and enables internet users to observe themselves to determine the degree of their CVD risk.

Źródło:

TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2004, 8, 3; 439-440
1428-6394

Pojawia się w:

TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 5.

Tytuł:

Atmo Domno - refleksje nad przywództwem i statyfikacją społeczną u Dogonów z Mali
Atmo Domno - Reflection on Leadership and Social Stratification of Dogons from Mali

Autorzy:

Łapott, Jacek

Powiązania:

https://bibliotekanauki.pl/articles/567044.pdf

Data publikacji:

2008

Wydawca:

Uniwersytet Warmińsko-Mazurski w Olsztynie. Instytut Nauk Politycznych

Tematy:

Mali
Dogons
Leadership
Social Stratification

Opis:

The Dogons - it is one of the today better known tribes of the West Africa. Getting known their culture has been recently associate only with perfect investigations of French ethnologists concentrated around Marcel Griaule. The author, for the first time, encountered the Dogon Tribe over 30 years ago. The multiple returns (often to the very same places) have made possible to observe their culture within the space of many years. The author has got to know many representatives of this tribe, some of them fleetingly, but with some of them he has been in touch until today. Atmo Domno - an inhabitant of a village called Yougo Na can be rated among the second group. However, Atmo Domno was not an "ordinary" Dogon. By virtue of his birth, he belongs to a group of Dogons highly positioned within the social hierarchy, who decide about not only the village Yougo Na life, but also of whole tribe, as Atmo is a member of a group of so called "Impure". In the Dogon Tribe the "Impure" take care of rituals connected with death, they prepare deceased for the funeral and bury him, they make the offerings, eat sacrificed animals, build solitude huts for women, etc. The status of "Impure" is necessary to run for position of Olubaru - the leader of a secret association Awa. As opposed - the "Pure' innenomo can not do any rituals connected with death, make offerings or even hunt. But, on the other hand, the status of "Pure" in required for being a Hogona. With time, Atmo became a Binukedine (leader) of his clan, but he resigned at the moment of becoming Olubaru in the association Awa in Yougo Na, which means to have one of the highest religious statuses in Dogon Tribe. Olubaru from this village will have an unquestionable influence inter alia on: look and course of the forth- coming holiday of Sigui. Unfortunatel y, Amo had faint chance to live till this next holiday, as it will start around year 2028. Atmo Doumbo died in 2000. During my stay in Yougo Na in 2006, I was shown a several years old boy named Hamidou, in whose body lived a soul of nani Atmo, after his death, and who becomes the next "Impure".

Źródło:

Forum Politologiczne; 2008, 7 - Przywódcy i przywództwo we współczesnej Afryce; 341-352
1734-1698

Pojawia się w:

Forum Politologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 6.

Tytuł:

Gaokao i procesy stratyfikacji społecznej w Chinach
Gaokao and Processes of Social Stratification in China

Autorzy:

Gromkowska-Melosik, Agnieszka

Powiązania:

https://bibliotekanauki.pl/articles/1070752.pdf

Data publikacji:

2017-06-15

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

gaokao
high-stakes test
stratification
socialization

Opis:

This article concerns „gaokao” Chinese exams. I show how the „high stakes” tests (the essence of these exams) create the winners and losers in the battle for stratification success. They set up, as a one-time „selection act”, the trajectory of a career and the whole future life of young Chinese. At the same time, they are an example of the entanglement of the testing process in politics and of the enormous (and overwhelming) social pressure on young people.

Źródło:

Studia Edukacyjne; 2017, 44; 45-63
1233-6688

Pojawia się w:

Studia Edukacyjne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 7.

Tytuł:

Edukacja uniwersytecka i procesy stratyfikacji społecznej.
Academic education and the processes of social stratification

Autorzy:

Melosik, Zbyszko

Powiązania:

https://bibliotekanauki.pl/articles/644665.pdf

Data publikacji:

2013

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

education
stratification
social
mobility
equality
egalitarianism

Opis:

In the article author discusses the relationships between education and social stratification. The theories of meritocracy and credentalism are analyzed and a special attention is paid to the opposition between their interpretations of the equality/inequality dilemma. Then the R. Turner’s concepts of social mobility and E. Hopper’s concepts of social creation of aspiration are presented. In the second part of the article the phenomenon of overeducation and diploma in ation is considered as well as a case of higher education in Japan as a factor of social stratification in this country.

Źródło:

Kultura-Społeczeństwo-Edukacja; 2013, 3, 1; 21-46
2300-0422

Pojawia się w:

Kultura-Społeczeństwo-Edukacja

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 8.

Tytuł:

Valores centrales y sociolingüística en la comunidad de habla de Almería
Core Values and Sociolinguistics in the Almeria Speaking Community

Autorzy:

Marcos, Francisco García

Powiązania:

https://bibliotekanauki.pl/articles/1048235.pdf

Data publikacji:

2019-12-15

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

sociolinguistics
core value
attitudes
sociolinguistics stratification

Opis:

The article applies in the Almeria speaking community the core value sociolinguistic methodology developed by J.J. Smolicz in Australia. The results demonstrate the absolutely nuclear role of language in that community, in all target groups. The case of Almería, very probably, shows a universal pattern of sociolinguistic behaviour. In principle, it confirms the theoretical and methodological hypothesis developed in Australia. They also highlight the relevance of interdisciplinary-based research, from which valuable descriptive results can be obtained for the disciplines involved.

Źródło:

Studia Romanica Posnaniensia; 2019, 46, 4; 125-133
0137-2475
2084-4158

Pojawia się w:

Studia Romanica Posnaniensia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 9.

Tytuł:

Efficacy of Possum Score in Predicting the Outcome in Patients Undergoing Emergency Laparotomy

Autorzy:

Sreeharsha, Harinatha
Sp, Rai
Sreekar, Harinatha
Reddy, Ravi

Powiązania:

https://bibliotekanauki.pl/articles/1395749.pdf

Data publikacji:

2014-04-01

Wydawca:

Index Copernicus International

Tematy:

POSSUM scoring
emergency laparotomy
risk stratification

Opis:

Monitoring of surgical outcome is increasingly important part of governance of surgical activity. The aim of the study. POSSUM scoring system was applied prospectively to determine how it performed in predicting morbidity and mortality in patients undergoing emergency laparotomy in our hospital, a group known to be at high risk of complications and death. Material and methods. A total of 100 cases of emergency laparotomies were studied in patients admitted in general surgery department during the period of May 2008 to August 2010. The study group consisted of the following cases. Duodenal perforation (37 cases), intestinal obstruction (27 cases), gastric perforation (8 cases), ileal perforation (8 cases), appendicular perforation (7 cases), blunt trauma (4 cases) and others (9 cases). They were scored using POSSUM scoring system. Physiological scoring was done at the time of admission and operative scoring was done intraoperatively. They were followed up for the first 30 day post operative period for any complications and the outcome was noted. The observed morbidity and mortality rates were compared with the POSSUM predicted morbidity and mortality rates. Results. 15 patients died (mortality rate of 15%). The POSSUM predicted mortality was 20 deaths. O:E ratio of 0.71 was obtained. There was no statistically significant difference between the observed and predicted mortality rates (χ2=1.72, p=0.974). 71 patients experienced complications. The POSSUM predicted morbidity was 61 patients. O:E ratio of 1.19 was obtained. There was no statistically significant difference between the observed and predicted morbidity rates (χ2=1.594, p=0.991). Conclusions. POSSUM scoring is an accurate predictor of mortality and morbidity following emergency laparotomy and is a valid means of assessing adequacy of care provided to the patient. POSSUM can be used for surgical audit to assess and improve the quality of surgical care and helps in better outcome to the patient

Źródło:

Polish Journal of Surgery; 2014, 86, 4; 159-165
0032-373X
2299-2847

Pojawia się w:

Polish Journal of Surgery

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 10.

Tytuł:

Klientelizm jako czynnik wpływający na wzrost rozwarstwienia ekonomicznego w państwach Afryki Subsaharyjskiej
Influence of clientelism on increase of economic stratification of Sub-Saharan countries

Autorzy:

Radłowska, Anna

Powiązania:

https://bibliotekanauki.pl/articles/566776.pdf

Data publikacji:

2011

Wydawca:

Uniwersytet Warmińsko-Mazurski w Olsztynie. Instytut Nauk Politycznych

Tematy:

Sub-Saharan Africa
Clientelism
Economic stratification

Opis:

Patron - client relations are one of the most important characteristics of modern political systems of African countries south of Sahara. The main aim of the article is the analysis of the influence of clientelism and clientelist relations on the increase of economic stratification of societies of these countries. The broad study of the notion of clientelism is followed by the attempt to identify the causes of the emergence of clientelist relations, ranging from political and economical to social and cultural factors. Having done that, the author focuses on the consequences of clientelism in regard to the widening economic gap between African citizens.

Źródło:

Forum Politologiczne; 2011, 12 - Problemy bogactwa i biedy we współczesnej Afryce; 491-515
1734-1698

Pojawia się w:

Forum Politologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 11.

Tytuł:

Otwartość polskiej struktury społecznej: 1982–2016
The Openness of Social Structure in Poland: 1982–2016

Autorzy:

Domański, Henryk
Mach, Bogdan W.
Przybysz, Dariusz

Powiązania:

https://bibliotekanauki.pl/articles/428087.pdf

Data publikacji:

2019

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

ruchliwość
stratyfikacja
dziedziczenie
mobility
stratification
inheritance

Opis:

Konceptualną ramą badań nad ruchliwością jest teoria modernizacji. Stwierdza się w niej, że wzrost otwartości jest dominującą tendencją, która wynika z postępującej liberalizacji i rozwoju gospodarki rynkowej. Wbrew tym oczekiwaniom bariery ruchliwości okazują się na ogół stabilne. Ustalenia te dotyczyły głównie zachodnich demokracji. Nasza analiza jest kontynuacją tego podejścia w odniesieniu do Polski. Opierając się na danych z lat 1982–2016 wskazujemy, że po pierwsze, dokonuje się systematyczne obniżenie wpływu wykształcenia na pozycję zawodową, co przeciwdziała zwiększaniu się ruchliwości międzypokoleniowej. Po drugie, tendencja ta nie obniżyła jednak tzw. względnych szans ruchliwości, chociaż mogło to być bardziej związane z przekształceniami struktury zawodowej niż ze wzrostem otwartości barier społecznych. Po trzecie, za stabilnym charakterem wzorów ruchliwości przemawia utrzymywanie się nierówności edukacyjnych. Po czwarte, okazuje się, że w odróżnieniu od badań w innych krajach, w przypadku Polski, wyższe wykształcenie nie osłabia, ale raczej wzmacnia znaczenie dziedziczenia pozycji rodziców.
This paper deals with changes in the “openness” of Polish society over a 35-year period, focusing primarily on relative mobility, with some attention to changes in absolute mobility. We disentangle intergenerational occupational association into four interrelated parts: (i) relative mobility defined by the effect of social origin on destination, (ii) the relationship between social origin and education, (iii) the net effect of education on destination, and (iv) the compositional effect of education reflected in the rising share of more educated categories in the social structure. We show that changes in social fluidity were neither systematic nor easily interpretable. While our results reveal a consistently declining association between education and occupational position, unidirectional change could not be identified in the social origin-education link and in relative mobility in terms of the association between origin and destination. The origin-destination association generally increased at higher (rather than lower) educational levels.

Źródło:

Studia Socjologiczne; 2019, 1(232); 25-63
0039-3371

Pojawia się w:

Studia Socjologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 12.

Tytuł:

Integration in the Educational System in Israel and Its Influenceon Social Stratificationin a Changing World
Integracja w systemie oświaty w Izraelu i jej wpływ na rozwarstwienie społeczne w zmieniającym się świecie

Autorzy:

Franco, Manor Sali

Powiązania:

https://bibliotekanauki.pl/articles/916088.pdf

Data publikacji:

2020-01-19

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

integration
educational
Israel
stratification
economic status

Opis:

Among the phenomena that characterize modern society it is possible to note the appearance of complex political, occupational, and sectorial systems of status and the weakening of the ‘class’ factor in its ideological meaning. The main result of this development was the steadily increasing conflictbetween, on the one hand, the trends of economic development and the new centers of power and, on the other hand, the mobility of new groups. All the groups competed among themselves over the additions of income, accessibility to economic resources, and positions of influencein the government system as well as over the creation of autonomous frameworks. An important part in these sectorial formations is related to the positioning of education in the entire stratifiedsystem. The statement that the extension of education has not resulted in the reduction of social gaps in the professional field,especially between employees, is correct, yet conversely it did drive a process of change in the evaluation of different subjects and a change in the perception of education as a necessary state of specialization. This aspect constitutes an important factor in the processing of the stratifiedmap and in the formation of the class awareness. The education systems, which are the main organizations to inculcate education, can determine who is qualifiedand who is not qualifiedto filldifferent employment roles; they have become the main device for the achievement of social and economic status.

Źródło:

Studia Edukacyjne; 2017, 46; 439-449
1233-6688

Pojawia się w:

Studia Edukacyjne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 13.

Tytuł:

Spatial and seasonal variability of temperature and salinity in Bransfield Strait and Admiralty Bay, Antarctica

Autorzy:

Rakusa-Suszczewski, Stanisław

Powiązania:

https://bibliotekanauki.pl/articles/2052591.pdf

Data publikacji:

1996

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

Antarctica
T/S stratification
annual cycles

Źródło:

Polish Polar Research; 1996, 17, 1-2; 29-42
0138-0338
2081-8262

Pojawia się w:

Polish Polar Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 14.

Tytuł:

Rodzina – wspólnota konfliktowych interesów
Family as a Community of Conflicting Interests

Autorzy:

Poleszczuk, Jan

Powiązania:

https://bibliotekanauki.pl/articles/952072.pdf

Data publikacji:

2014

Wydawca:

Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku

Tematy:

family
life cycle
social stratification
reproduction

Opis:

The article presents four perspectives on the family. In the intergenerational perspective a family is an institution of biological and cultural reproduction. Family in the perspective of the life cycle is a dynamically changing structure of “problems to solve” associated with life cycle: socialization, mating, parenting and post reproductive phase. Each phase substantially changes the structure of interests, available resources and the nature of social relationships. Family in the system of social stratification is associated with the distribution of scarce resources. The family as a system of social interaction is a complex dynamic unit which stabilizes the basic structure of the moral code (attitudes of loyalty and trust).

Źródło:

Pogranicze. Studia Społeczne; 2014, 24; 13-27
1230-2392

Pojawia się w:

Pogranicze. Studia Społeczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 15.

Tytuł:

Approximately optimum strata boundaries for two concomitant stratification variables under proportional allocation

Autorzy:

Danish, Faizan
Rizvi, S. E. H.

Powiązania:

https://bibliotekanauki.pl/articles/1917115.pdf

Data publikacji:

2021-12-08

Wydawca:

Główny Urząd Statystyczny

Tematy:

stratification points
proportional allocation
minimal equation

Opis:

The proper choice of strata boundaries is an important factor determining the efficiency of the estimator of the considered characteristics of a population. In this article, the Cum Di(x,z) Rule (i=3,4) for obtaining approximately optimum strata boundaries has been applied, taking into account a single-study variable along with two concomitant variables serving as the basis of the stratification variables. The relative efficiency of the proposed methods has been demonstrated theoretically and empirically by comparing them to a selection of already-existing methods in a simulation study with the use of the proportional allocation method.

Źródło:

Statistics in Transition new series; 2021, 22, 4; 19-40
1234-7655

Pojawia się w:

Statistics in Transition new series

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 16.

Tytuł:

"Jesteśmy innej rasy i dlatego nasz dom nie jest dla nich" - piętno wykluczenia w społeczności afrykańskiej
"We are a different race and that is why our house is not for them" - the stigma of exclusiojn in the African community

Autorzy:

Łapott, Jacek

Powiązania:

https://bibliotekanauki.pl/articles/567150.pdf

Data publikacji:

2012

Wydawca:

Uniwersytet Warmińsko-Mazurski w Olsztynie. Instytut Nauk Politycznych

Tematy:

Sub-Saharan Africa
Dogon community
Social stratification

Opis:

The problem of the complexity of social stratification in Sub-Saharan Africa, leading often to the title "exclusion" is not always noticed in recent literature, either ethnological or socio-political. It goes far beyond the fashionable topics of tribalism, ethnicity, or even the problem of creation of the people in the countries of this continent. That shows like "hidden meaning" of the first phenomenon that does not fit tightly to the theory of the modem state. During a recent survey in Mali among the Dogon community, in years 2008-2009, the problem of exclusion outlined very clearly. It is known as principle of conduct concerning, inter alia, to marry. Today, the "races" among whom are looking for a wife not just blacksmith, artisans groups belonging to scheduled castes (basket-maker, vesicle etc.) but also the descendants of former slaves. Violation of the ban results in finding a group of "hybrids" - hassobe. The common history and community of residence for hundreds of years, as it turns out, does not even today to a homogeneous ethnic group.

Źródło:

Forum Politologiczne; 2012, 13 - "Stare" i "nowe" mocarstwa w Afryce - stygmaty kulturowe, religijne, polityczne, ekonomiczne i społeczne; 295-319
1734-1698

Pojawia się w:

Forum Politologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 17.

Tytuł:

Retirees Are Also Stratified: Pre-Retirement Socio-Occupational Status and the Well-Being of Older Adults in Central Europe

Autorzy:

Večerník, Jiří

Powiązania:

https://bibliotekanauki.pl/articles/1790272.pdf

Data publikacji:

2021-03-22

Wydawca:

Polskie Towarzystwo Socjologiczne

Tematy:

well-being
seniors
Central Europe
social stratification

Opis:

Most stratification research concerns solely the economically active population and omits inactive seniors. Retirees are often treated as a separate and rather homogeneous social category. However, this approach is only partially valid. Retirees can still be differentiated in regard to their objective and subjective well-being, which is linked to their former occupations. Using large EU-SILC datasets for Central European countries, this article focuses on the effect of pre-retirement socio-occupational category on the well-being of retirees. The category is found to be an important explanatory variable after controlling for age, sex, marital status, and other characteristics. However, there are substantial differences among countries. While in Czechia, retirees are most homogeneous in regard to their objective and subjective well-being across socio-occupational categories, the differences are considerably larger in Hungary and Poland, and on a similar level as in our benchmark country, Austria.

Źródło:

Polish Sociological Review; 2021, 213, 1; 27-46
1231-1413
2657-4276

Pojawia się w:

Polish Sociological Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 18.

Tytuł:

Analysis of thermal stratified storage tank

Autorzy:

Smusz, R.
Kielan, P.
Mazur, D.

Powiązania:

https://bibliotekanauki.pl/articles/140948.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

temperature stratification
thermal energy
heat recovery
convection

Opis:

The basic aim of the task is to compile a temperature stratification system in an accumulation tank. The range of the thesis concerns the shape and dimensions of a stratification system for an accumulation tank. Thermal stratification is a process that comprises the maintaining of temperature stratification at different levels of an accumulation tank which reduce to a minimum the process of temperature equalization. It results from the fact that the thermal stratification in a tank significantly increases the installation efficiency and improves the process of energy storing. It is connected with a thermodynamic element quality, that is the higher the temperature, the higher the energy, and, thus, the thermosdynamic element quality. In this phenomenon, thanks to the same amount of accumulated thermal energy and average temperature, as in a fully mixed tank, the user has a higher temperature in the upper part of the tank at his disposal. It has significant importance in the case when there is a low-temperature heating medium that transfers heat to the accumulation tank. Such a situation occurs when heat is absorbed from synthetic freons used in cooling and air-conditioning systems.

Źródło:

Archives of Electrical Engineering; 2017, 66, 3; 631-642
1427-4221
2300-2506

Pojawia się w:

Archives of Electrical Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 19.

Tytuł:

First record of tempestites from Quaternary lacustrine deposits in the Ağrı Basin (Eastern Anatolia, Türkiye) : palaeoclimatological and palaeogeographic implications

Autorzy:

Üner, Serkan

Powiązania:

https://bibliotekanauki.pl/articles/27324244.pdf

Data publikacji:

2023

Wydawca:

Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy

Tematy:

tempestite
hummocky cross-stratification
Quaternary
Eastern Anatolia

Opis:

Several event layers have been identified in lacustrine deposits in the AErI Basin of Anatolia (E Türkiye). Sedimentological and palaeontological data newly indicate a storm-induced origin for some of them. The sedimentary structures in three sections, a few tens of metres apart from each other laterally, such as hummocky cross-stratification, wave-generated cross-bedding, parallel bedding, erosional surfaces, and graded bedding, which are considered characteristic of tempestites, are clearly present. Additionally, fining-upwards units and biogenic escape structures located at different levels of these sections indicate a similar origin. The vertical variations in layer thickness, grain size, and sedimentary structures in these sedimentary sections indicate fluctuating hydrodynamic conditions during deposition, while lateral decrease in the size and wavelength of the structures reflects deepening. This interpretation of storm-induced deposition is compatible with regional palaeoclimatological and palaeogeographical data, and is supported by evidence of Quaternary storm-induced sedimentation in adjacent lacustrine basins in the region.

Źródło:

Geological Quarterly; 2023, 67, 2; art. no. 13
1641-7291

Pojawia się w:

Geological Quarterly

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 20.

Tytuł:

Values Preferred by Teachers and Students for Teacher Training Faculties

Autorzy:

Stanek, Janusz

Powiązania:

https://bibliotekanauki.pl/articles/28765639.pdf

Data publikacji:

2005-12-31

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

value
teachers
axiology
social stratification
profession
teaching speciality

Opis:

In his article, the author outlines the values preferred by teachers and those aspiring to the profession. The presented data point to a very broad convergence between what teachers and students indicated with regard to their attitude towards values. Although one can observe certain, rather subtle, differences (related to, among others, the socio-demographic characteristics of those surveyed), they are of secondary importance and do not cause the axiological bases for the functioning of both groups to differ. What is significant is also the placement of such values as safety, responsibility and children. These values have a static character, connected with necessity and, at the same time, with the need to maintain one’s property. They proved to be slightly more appreciated by teachers than by students. The research shows one essential yet weak correlation: two values, wisdom and honesty, find a slightly wider acknowledgement among teachers than among their future colleagues. The same can be said of the case when the same values are chosen as primary. In this context, referring everything that takes place in the social space to distant, better times seems to be justified. No matter how it was in the real historical dimension, it appears justified to assert that it is undoubtedly better to live in an environment where the majority of those representing a given professional group (especially one as important for the social structure as teachers) recognise the importance of wisdom and honesty.

Źródło:

The New Educational Review; 2005, 7; 152-170
1732-6729

Pojawia się w:

The New Educational Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 21.

Tytuł:

Empirical Research on Social Stratification in the Visegrád Countries: An Overview

Autorzy:

Nešpor, Zdeněk
Večerník, Jiří

Powiązania:

https://bibliotekanauki.pl/articles/22859452.pdf

Data publikacji:

2023-03-20

Wydawca:

Polskie Towarzystwo Socjologiczne

Tematy:

empirical research
social stratification
Visegrád countries
comparative surveys

Opis:

This article outlines developments in empirical research on social stratification in the four countries constituting currently the Visegrád Group (V4). Sociology has been developing, if unevenly, as a discipline in these countries since the 19th or early 20th century. Empirical research on social stratification, based on data collected in large surveys, started here by the mid-1960s, first in Poland, then in Hungary, and later in the former Czechoslovakia. In spite of the ideological pressure of the communist regimes in all of these countries, the conditions for sociological studies were much better in Poland and Hungary than in Czechoslovakia, where such research was frozen for a long time after the communist putsch of 1948 and again after the Soviet occupation in 1968. After 1990, this kind of research enjoyed an energetic new start in all the post-communist countries, as they opened fully to the West and integrated into international networks. In addition, comparative research within the V4 region started with the challenging project “Social Stratification in Eastern Europe after 1989.” Many national surveys were conducted and East-West cooperation intensified. Currently, most empirical research on social stratification occurs on a national or bilateral basis, or is developed within larger European projects.

Źródło:

Polish Sociological Review; 2023, 221, 1; 4-26
1231-1413
2657-4276

Pojawia się w:

Polish Sociological Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 22.

Tytuł:

SAMPLE ALLOCATION IN ESTIMATION OF PROPORTION IN A FINITE POPULATION DIVIDED INTO TWO STRATA: AN EXAMPLE OF APPLICATION

Autorzy:

Sieradzki, Dominik
Zieliński, Wojciech

Powiązania:

https://bibliotekanauki.pl/articles/453168.pdf

Data publikacji:

2018

Wydawca:

Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki

Tematy:

survey sampling
sample allocation
stratification
estimation
election poll

Opis:

The problem of estimating a proportion of objects with particular attribute in a finite population is considered. This paper shows an example of the application of estimation fraction using new proposed sample allocation in a population divided into two strata. Variance of estimator of the proportion which uses proposed sample allocation is compared to variance of the standard one. In the paper an application of sample allocation described in Sieradzki & Zieliński [2017] is presented."

Źródło:

Metody Ilościowe w Badaniach Ekonomicznych; 2018, 19, 1; 71-77
2082-792X

Pojawia się w:

Metody Ilościowe w Badaniach Ekonomicznych

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 23.

Tytuł:

The Analysis of Social Stratification in Elizabeth Gaskell’s Mary Barton: A Tale of Manchester Life from a Marxist Perspective

Autorzy:

Kaptan, Gizem

Powiązania:

https://bibliotekanauki.pl/articles/606091.pdf

Data publikacji:

2017

Wydawca:

Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej

Tematy:

capitalism
social stratification
working class
marxism
Mary Barton

Opis:

Der Band enthält die Abstracts ausschließlich in englischer Sprache.
While Industrial Revolution helped England to become a great power in the world, capitalism created a huge gap between the middle classes and working classes. Observing the condition of the society, Marx and Engels created their famous claim of class struggle in The Communist Manifesto. They emphasized the gap between two classes and how to revolt against the capitalist system by the working class. This paper ventures to study the class issue in the Victorian society from the perspective of the Marxist literary theory. It analyses how the capitalist system makes working class people’s life miserable while it enriches the lives of middle class people. In this respect, Elizabeth Gaskell’s novel Mary Barton will be studied together with the links between the novel and The Communist Manifesto.
Le numéro contient uniquement les résumés en anglais.
Том не содержит аннотаций на английском языке.

Źródło:

Lublin Studies in Modern Languages and Literature; 2017, 41, 1
0137-4699

Pojawia się w:

Lublin Studies in Modern Languages and Literature

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 24.

Tytuł:

Ruchliwość społeczna i wzory zawierania małżeństw w Polsce
Social mobility and marital homogamy in Poland

Autorzy:

Domański, Henryk

Powiązania:

https://bibliotekanauki.pl/articles/2895000.pdf

Data publikacji:

2020

Wydawca:

Kancelaria Sejmu. Biuro Analiz Sejmowych

Tematy:

inheritance
social mobility
stratification
social structure in Poland

Opis:

This paper presents findings on the changes in social stratification in Poland, with particular attention given to mobility and marital choices. The author begins with an overview of the concept of social mobility, i.e. shifting of individuals or other categories in social space, including its definitions, indicators, patterns and mechanisms. Next, based on a set of empirical data, the author discusses the patterns of mobility and martial choices in the aftermath of 1989 transition in Poland. Special attention is given to the analysis of the openness of Polish society, opportunities for intergenerational mobility and its consequences.

Źródło:

Studia BAS; 2020, 2(62); 57-72
2080-2404
2082-0658

Pojawia się w:

Studia BAS

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 25.

Tytuł:

Stratyfikacja społeczna ludności prawobrzeżnego leśnostepowego Podnieprza okresu Scytii klasycznej (2. poł. VI–IV/III w. p.n.e.)
Social stratification of forest-steppe population of the right-bank of the Dnieper river during the classical Scythia (the second half of 6th–4th/3rd century BC)

Autorzy:

Burghardt, Marcin

Powiązania:

https://bibliotekanauki.pl/articles/567537.pdf

Data publikacji:

2017

Wydawca:

Uniwersytet Rzeszowski. Instytut Archeologii Uniwersytetu Rzeszowskiego. Muzeum Okręgowe w Rzeszowie

Tematy:

graves
social stratification
forest-steppe
classical Scythia
Scythians

Opis:

The article discusses the issue regarding the reconstruction of social structure of the early Scythian populations from the forest-steppe area of the Dnieper river, in the period between the second half of 6th–4th/3rd century BC, on the basis of funeral materials. As a result of the analysis of the most important elements of burial rites implemented by the discussed population groups, and based on records of ancient authors (The Histories by Herodotus), it has been established that the most valuable sources are the size and complexity of the funerary structure and covering embankment as well as quantitative and qualitative diversity of included inventory. The classification developed on the basis of 198 burials, by means of statistical inference methods, has led to the separation of several classes of graves that can be combined with different social strata. These layers included nomadic higher spheres (leaders of local communities, leaders of “military teams” and tribal aristocracy) and elites of local settled tribes, average members of the population divided into its wealthy representatives and the so-called “simple Scythians” and lower layers of (“the poor”) and people with limited rights (domestic slaves?).

Źródło:

Materiały i Sprawozdania Rzeszowskiego Ośrodka Archeologicznego; 2017, 38; 111-154
0137-5725

Pojawia się w:

Materiały i Sprawozdania Rzeszowskiego Ośrodka Archeologicznego

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 26.

Tytuł:

Wyborcy polskich partii politycznych wobec problemu rozwarstwienia społecznego
Polish political parties voters and social stratification problem

Autorzy:

Tomczak, Łukasz

Powiązania:

https://bibliotekanauki.pl/articles/514687.pdf

Data publikacji:

2015

Wydawca:

Uniwersytet Śląski. Wydział Nauk Społecznych

Tematy:

polish party system
social stratification
left and right

Opis:

Article refers to the ratio of the party and their constituents facing the problems of social stratification. The analysis underwent voters of elections to the European Parliament and election to the local governments 2014. There were considered five Polish parties: Platforma Obywatelska, Prawoi Sprawiedliwość, Sojusz Lewicy Demokratycznej, Polskie Stronnictwo Ludowe, Nowa Prawica of Janusz Korwin-Mikke. The respondents’ preferences were also examined in the relation to the place on the political scene declared by them and defining accordingly as left wing, right wing and centre. It was questioned whether differences in income between rich and poor in Poland are too large and whether the state should seek to reduce income inequalities of citizens. For the voters of most of the parties income differences were too high. The voter majority also believed that the state was to reduce the differences. The majority of opponents of the state involvement was only in the group of voters of Nowa Prawica. The views of voters slightly differed in the context of left and right division.

Źródło:

Political Preferences; 2015, 10; 23-35
2449-9064

Pojawia się w:

Political Preferences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 27.

Tytuł:

Horizontal Inequalities in Higher Education

Autorzy:

Zawistowska, Alicja

Powiązania:

https://bibliotekanauki.pl/articles/1929899.pdf

Data publikacji:

2011-09-27

Wydawca:

Polskie Towarzystwo Socjologiczne

Tematy:

horizontal educational inequality
higher education
stratification
educational selection

Opis:

This paper aims to answer two questions concerning inequalities in tertiary education. First question concerns the effect of social origin on choice of field of study and the second question concerns the effect of gender. Existing research has demonstrated a significant relation between social background and the field of study. Individuals with more educated parents are more likely to study at prestigious faculties, such as law or medicine. Women are more willing than men to choose humanities and social studies whereas men more often choose technical studies. Will these patterns continue in the face of the rapid increase in number of students which began in Poland in the 1990s? A survey conducted in three state higher-education establishments in Białystok in 2008 shows that students’ choices continue to be affected both by social background and gender. We also found a significant relationship between the field of study and general risk-proneness. These results are explained in terms of three different theories: cultural capital, critical theory, and rational choice.

Źródło:

Polish Sociological Review; 2011, 175, 3; 333-350
1231-1413
2657-4276

Pojawia się w:

Polish Sociological Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 28.

Tytuł:

Preferred Levels of Income Inequality in a Period of Systemic Change: Analysis of Data from the Polish Panel Survey, POLPAN 1988–2003

Autorzy:

Kołczyńska, Marta
Merry, Joseph J.

Powiązania:

https://bibliotekanauki.pl/articles/1810841.pdf

Data publikacji:

2016-06-24

Wydawca:

Polskie Towarzystwo Socjologiczne

Tematy:

stratification
inequality
economic attitudes
panel analysis
transition
Polska

Opis:

Rising trends in economic inequality are well-established across many affluent nations. However, researchers have accrued considerably less knowledge regarding the economic attitudes and preferences of individuals living within the context of increasing inequality, especially in developing or transition countries. To gain leverage on this topic, we utilize data from Polish Panel Survey (POLPAN) from 1988–2003 to examine change over time in respondents’ preferred levels of income inequality. Results show that Poles tend to accept higher levels of income inequality over time. This effect increases with time, even after controlling for respondents’ meritocratic beliefs and attitudes toward state intervention. In addition, this rise in preferred income inequality changes in accordance with actual and perceived changes in the earnings distribution. After describing the patters of variation in acceptance of income inequality between different social groups, we discuss the implications of individuals’ evolving benchmarks for preferred levels of inequality.

Źródło:

Polish Sociological Review; 2016, 194, 2; 171-190
1231-1413
2657-4276

Pojawia się w:

Polish Sociological Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 29.

Tytuł:

Inequality in Access to Social Capital: Assessing the Role of Cultural Practices

Autorzy:

Cebula, Michał
Perchla-Włosik, Aleksandra

Powiązania:

https://bibliotekanauki.pl/articles/22858324.pdf

Data publikacji:

2023-12-13

Wydawca:

Polskie Towarzystwo Socjologiczne

Tematy:

social capital
social networks
cultural practices
taste
social stratification

Opis:

Previous research in social science established the existence of mutual relationship between cultural tastes and social networks. What is less known, however, is how this connectivity translates into tangible social benefits (social capital). By applying the resource generator tool, the article explores the extent to which access to different social resources (social capital) is related to pursuing different cultural activities, independent of social standing and network features. Empirically, the possibilities of locally representative survey data (N = 1010) from Poland (2017) are exploited. The analysis brings two main findings: (i) participation in elite culture is positively associated with better access to instrumental resources (lending money, job assistance), (ii) while popular culture is more relevant to “information and (cultural) influences” social capital and to general access to resources. The contribution of the study is to show that cultural consumption may assist in the accumulation of important social resources and thus contribute to solidifying social inequalities

Źródło:

Polish Sociological Review; 2023, 224, 4; 419-440
1231-1413
2657-4276

Pojawia się w:

Polish Sociological Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 30.

Tytuł:

The Effect of Social Mobility on Cultural Barriers in Poland

Autorzy:

Domański, Henryk
Przybysz, Dariusz
Wyrzykowska, Katarzyna
Zawadzka, Kinga

Powiązania:

https://bibliotekanauki.pl/articles/22858329.pdf

Data publikacji:

2023-09-27

Wydawca:

Polskie Towarzystwo Socjologiczne

Tematy:

social mobility
cultural stratification
social class barriers
musical preferences

Opis:

The main aim of this article is to show to what extent social mobility weakens cultural barriers. The findings are based on the results of a study on the stratification of musical tastes conducted in Poland in 2019 on a nationwide random sample. We demonstrate that upwardly mobile individuals adapt more to their status of origin than to their new position. Our results also disconfirm hypotheses concerning the “socialization” of downwardly mobile individuals to the highbrow culture. It shows that individuals moving down are closer to the lower classes in participation in culture as compared to “stayers.” The results suggest an important shift: the upwardly mobile have ceased to translate their occupational success into a more esteemed culture to gain social approval. Respectively, the skidders do not resist the status implications of downward mobility by denying failure and striving to compensate socio-economic degradation with sharing their tastes with their status peers.

Źródło:

Polish Sociological Review; 2023, 223, 3; 353-368
1231-1413
2657-4276

Pojawia się w:

Polish Sociological Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 31.

Tytuł:

Predicting IoT failures with Bayesian workflow

Autorzy:

Baranowski, Jerzy

Powiązania:

https://bibliotekanauki.pl/articles/2087008.pdf

Data publikacji:

2022

Wydawca:

Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN

Tematy:

IoT failures
Bayesian workflow
post-stratification
Hamiltonian Monte Carlo

Opis:

IoT networks are so voluminous that they cannot be treated as individual devices, but as populations. Main aim of the paper is to create a comprehensive method for predicting failures taking device variance into consideration. We propose using data fusion of happenstance observations (resets and failures) to better estimate device parameters. We propose using methods of population analysis in Bayesian statistics to estimate failure times investigating only a part of the population. For this purpose, we use multilevel hierarchical Bayesian model and provide it with post stratification. We propose model assumptions, construct the model and evaluate it, and perform computations using Hamiltonian Monte Carlo. This method is known as the Bayesian workflow. We have analyzed three different models showing that, in case of small device variance, it can be ignored, or at least compensated, while significant differences require hierarchical modeling. We also show that hierarchical model shows significant robustness to a small amount of data. We have shown attractiveness of Bayesian approach to modeling failures of IoT devices. Ability to diagnose and tune models, and assure their computational fidelity is a great advantage of Bayesian workflow.

Źródło:

Eksploatacja i Niezawodność; 2022, 24, 2; 248--259
1507-2711

Pojawia się w:

Eksploatacja i Niezawodność

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 32.

Tytuł:

Globalny system akademicki i stratyfikująca rola badań naukowych
The global academic system and the stratifying role of research

Autorzy:

Kwiek, Marek

Powiązania:

https://bibliotekanauki.pl/articles/2043871.pdf

Data publikacji:

2021-12-31

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

academic profession
social stratification
high participation systems
global science

Opis:

The global stratification of higher education institutions is accompanied by the vertical differentiation of the academic profession. The various segments of the profession and the various components of higher education systems have been drifting apart. A general contrast emerges between the haves and have-nots in terms of working conditions and the attractiveness of the academic profession at the individual level; and the global visibility in league tables and access to national research funding at the institutional level. In massified systems, the traditional teaching-research nexus will be maintained in practice almost exclusively in the small elite sub-sector. The opportunities at the disposal of institutions will vary immensely in the future, but the most important, qualitative distinction will be between the top 1,000 universities and the rest (comprising about 25,000–30,000 institutions).

Źródło:

Człowiek i Społeczeństwo; 2021, 52; 71-90
0239-3271

Pojawia się w:

Człowiek i Społeczeństwo

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 33.

Tytuł:

Empiryczny test hipotezy o słabnącej krystalizacji systemów partyjnych
AN EMPIRICAL TEST OF THE HYPOTHESIS REGARDING WEAKENING CRYSTALLIZATION OF PARTY SYSTEMS

Autorzy:

Domański, Henryk
Pokropek, Artur
Żółtak, Tomasz

Powiązania:

https://bibliotekanauki.pl/articles/427769.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

CLASS VOTING
SOCIAL STRATIFICATION
POST-COMMUNISM
DEATH OF CLASSES

Opis:

There are many arguments for the thesis according to which political views become “separated” from social structure, but there is also substantial evidence that the relation between them continues to exist and is not changing significantly over time. We refer to certain aspects of this process, using European Social Survey data of the years 2002-2010. The subject of our analysis is strength of the relation between voters’ preferences and electoral participation on the one hand and age, religion, immigration status and position in social hierarchy on the other in several countries in the indicated period. Our analysis results in the conclusion that political systems have a rather stable footing in social structure. In particular, there is no indication that in the years 2002-2010 the impact of social class on voters’ preferences was diminishing. Although class position is a relatively weak indicator of voters’ attitude, but the influence of religion, immigration and age is weaker still, even though these are taken to be the indicators of “new” social divisions, which supposedly blur traditional voting identities.

Źródło:

Studia Socjologiczne; 2013, 2(209); 71-95
0039-3371

Pojawia się w:

Studia Socjologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 34.

Tytuł:

Improved separate ratio and product exponential type estimators in the case of post-stratification

Autorzy:

Lone, Hilal A.
Tailor, Rajesh

Powiązania:

https://bibliotekanauki.pl/articles/465656.pdf

Data publikacji:

2015

Wydawca:

Główny Urząd Statystyczny

Tematy:

finite population mean
post-stratification
bias
mean squared error

Opis:

This paper addressed the problem of estimation of finite population mean in the case of post-stratification. Improved separate ratio and product exponential type estimators in the case of post-stratification are suggested. The biases and mean squared errors of the suggested estimators are obtained up to the first degree of approximation. Theoretical and empirical studies have been done to demonstrate better efficiencies of the suggested estimators than other considered estimators.

Źródło:

Statistics in Transition new series; 2015, 16, 1; 53-64
1234-7655

Pojawia się w:

Statistics in Transition new series

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 35.

Tytuł:

Teachers and Success – Psychological Characteristics and Perceived Success Sources

Autorzy:

Karwowski, Maciej
Lebuda, Izabela

Powiązania:

https://bibliotekanauki.pl/articles/31342746.pdf

Data publikacji:

2007-03-31

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

teachers
success
dimension of success
successful teachers
social stratification

Opis:

In this article three separate, but connected studies are presented. The first and second studies conducted on two large samples of teachers (N=610&N=200) were realized to find an answer to the question about relationship of some personality characteristics (study 1.) or creative attitude (study 2.) and feeling of being a man/ woman of success in teachers’ case. The results showed statistically significant correlations between achieved success (in self-assessment) and such personality traits as: extraversion, conscientiousness and agreeableness (all relations are positive) and a negative correlation with neuroticism. In the second study significant differences in nonconformity, algorithmic behaviour and heuristic behaviour were found between teachers who think about themselves as people of success and those who did not achieve success. Successful teachers (in their own eyes) were more conformist and intellectually rigid (higher algorithmic and lower heuristic behaviour levels) than those who did not achieve success. The third study deals with the problem of teachers’ success source definitions and elements which could help to achieve success. The analysis of the data conducted in the Polish General Social Survey between 1992 and 2002 shows that teachers, similarly to the rest of society, see success sources mainly in individual abilities and activity (ambition, hard work), but one can see an interesting phenomenon of a growing number of factors which could be associated with social stratification – mainly family income and parents’ education level.

Źródło:

The New Educational Review; 2007, 11; 177-194
1732-6729

Pojawia się w:

The New Educational Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 36.

Tytuł:

Rozwarstwianie nasion rzepaku podczas wypływu z silosów
Size stratification of rape seeds during the funnel flow from silos

Autorzy:

Bowszys, J.

Powiązania:

https://bibliotekanauki.pl/articles/292006.pdf

Data publikacji:

2007

Wydawca:

Polskie Towarzystwo Inżynierii Rolniczej

Tematy:

rzepak
nasiona
rozwarstwienie
zanieczyszczenie
silos
rape
seeds
stratification
impurities

Opis:

W pracy zbadano zjawisko rozwarstwiania nasion podczas wypływu z silosów z wypływem lejowym. Materiałem użytym do badań były nasiona rzepaku. Badania przeprowadzono w trzech typach silosów SZD o pojemności 40 m3. Celem badań było określenie, w jaki sposób dodatkowe elementy umieszczone w silosie wpływają na segregację mieszaniny nasiennej rzepaku. Stwierdzono wyraźne rozwarstwienie nasion w silosach z promieniowym i pionowym układem wietrzenia w porównaniu z silosem bez układu wietrzącego. Zaleca się żeby w tych silosach ostatnią partię nasion stanowiącą 15% objętości zbiornika poddać ponownemu czyszczeniu.
The study deals with the question of size stratification of seeds during the funnel flow from a silo. Oilseed rape seeds were used for the tests. The experiment was carried out in three types of SZD silos, each 40 m3 in capacity. The purpose of the study was to determine how some additional elements in a silo affected the segregation of a seed mixture. In silos equipped with vertical or radial ventilation systems, seeds were size stratified, whereas in silos without a ventilation system seed stratification was much less efficient. It is, therefore, recommended to further clean the last 15% of grain removed from the latter types of silos.

Źródło:

Inżynieria Rolnicza; 2007, R. 11, nr 9 (97), 9 (97); 21-26
1429-7264

Pojawia się w:

Inżynieria Rolnicza

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 37.

Tytuł:

Wpływ przynależności klasowej na postawy wyborcze w latach 1991-2001
THE IMPACT OF CLASS IDENTITY ON ELECTORAL CHOICES IN 1991-2001

Autorzy:

Domanski, Henryk

Powiązania:

https://bibliotekanauki.pl/articles/427400.pdf

Data publikacji:

2011

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

CLASS VOTING
DEATH OF CLASSES
POST-COMMUNISM
SOCIAL STRATIFICATION

Opis:

In contemporary Central and Eastern Europe, the debate on class politics takes on a different form to that in the West - it concerns whether class divisions in creaseas the post-communist societies under go transition to the market system. Using Polish survey data, containing information on respondents voting beha ior in elections of 1991, 1994, 1997, and 2001, the Autors presents evidence on significance of social class on voting behavior. Results of log-linear analysis show that class membership does in deed exert a significant impact on voting behavior. Although it changed across the time, in 2001 it appeared no less significant than in 1991. Also the patterns of this association remained unchanged. On the whole our evidence suggests that in Poland a new dimension of social stratification known as in sociological literature 'class politics' - has emerged. At the same time, claims of the class basis of voting in Poland can not be exaggerated. The evidence presented here clearly indicates that the class-vote link in Poland is much lo wer compared with most of Western societies. Data from 17 countries found in allows to compare relative strength of this association European Social Survey 2002.

Źródło:

Studia Socjologiczne; 2011, 1(200); 583-610
0039-3371

Pojawia się w:

Studia Socjologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 38.

Tytuł:

An expert system supporting risk stratification in acute coronary syndromes

Autorzy:

Grabowski, M.
Filipiak, K. J.
Rudowski, R.
Opolski, G.

Powiązania:

https://bibliotekanauki.pl/articles/1965787.pdf

Data publikacji:

2004

Wydawca:

Politechnika Gdańska

Tematy:

expert system
decision making
acute coronary syndrome
risk stratification

Opis:

The aim of the project was to create a computer program, an expert system (ES), which would support physicians when a management for patients with acute coronary syndrome needs to be chosen. A knowledge database was created with the support of clinical experts, based on the current management standards. Data from new patients are added to the case database. The inference engine integrates two types of reasoning rule-based and case-based. The ES gives unambiguous and objective answers, its recommendation are reliable. At present, the ES is tested in clinical practice. Strategies recommended by the ES are compared with the management applied in a clinic.

Źródło:

TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2004, 8, 2; 281-286
1428-6394

Pojawia się w:

TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 39.

Tytuł:

Barriers of the Selection to Secondary and University-Level Education

Autorzy:

Domański, Henryk

Powiązania:

https://bibliotekanauki.pl/articles/1929420.pdf

Data publikacji:

2006-12-29

Wydawca:

Polskie Towarzystwo Socjologiczne

Tematy:

educational inequality
barriers of selection
social stratification
post-communist societies

Opis:

This paper analyses educational inequalities in Poland over the last two decades. Using data from national surveys carried out during the period 1982–2002 these results provide insight into the relationship between social origin and transition to secondary schools and university levels. Transition to both secondary school and universities are unquestionably selective by social class. The only question is whether these patterns have changed over the last two decades, when the communist regime collapsed and new inequalities emerged. Previous cross-time analyses for most countries showed a lack of substantial changes in educational inequalities over long periods of time. The main findings of the investigation can be summarised as follows. First, it showed that the effect of the class position of the father significantly increased in the 1990s, and then-until 2002-it declined to the degree of the 1980s, before the communist system collapsed. Second, in accordance with the findings of all previous studies, secondary school transition proved to be more selective as compared to that to the university level.

Źródło:

Polish Sociological Review; 2006, 156, 4; 471-488
1231-1413
2657-4276

Pojawia się w:

Polish Sociological Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 40.

Tytuł:

Is there Today Caste System or there is only Caste in India?

Autorzy:

Sharma, KANHAYA L.

Powiązania:

https://bibliotekanauki.pl/articles/1929960.pdf

Data publikacji:

2012-07-09

Wydawca:

Polskie Towarzystwo Socjologiczne

Tematy:

caste system
caste society
stratification
social mobility
caste-free areas

Opis:

The main focus of the paper is that caste system has always been resilient and dynamic due to its inner inconsistencies and contradictions on the one hand, and due to its interpenetration into economy, polity and culture on the other. The aim of this paper is to understand continuity and change in the caste system. Caste has engaged people, hence it has acquired a meta-legal approval. Caste has never been a simple ritual hierarchy because it has encompassed the entire matrix of socio-economic and political relations. It has been argued that there is a need to reconceptualize caste. Caste is no more simply a system of idea and values. More important is to see actual behaviour of the people vis-à-vis the role of caste as a system. Caste has become a matter of interpretation rather than substantialization. It refers to a purposive rationality. Its discrete use provides a description of the problems of Indian society, polity and economy. However, besides caste, there are new status groups, varied forms of social mobility, and structural processes of change and dominance. In such a situation, “family” and “individual” are emerging as agencies of reproduction of inequality/equality. Caste is becoming more of a state of mind of an individual. Contemporary changes have reshaped caste. The policy of reservations based on caste has kept it alive and vibrant. Protests against caste-based reservations have also contributed to the continuity of caste. Caste may be elusive for some who have distanced from their social and cultural roots, but for others, who continue to be there in villages and towns, caste is enduring, and it is there in practice in one way or other. At times, caste-based outbursts surface, though in everyday life, caste is not so visible as a means of social control.

Źródło:

Polish Sociological Review; 2012, 178, 2; 245-264
1231-1413
2657-4276

Pojawia się w:

Polish Sociological Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 41.

Tytuł:

Popielnica – ubranie zmarłego? Stratyfikacja społeczna ludności Wielkopolski w świetle istnienia dwóch odmian urn w okresie wpływów rzymskich

Autorzy:

Żychliński, Daniel

Powiązania:

https://bibliotekanauki.pl/articles/1023897.pdf

Data publikacji:

2016-12-15

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

cremation urns
social stratification
social structure
Roman Iron Age
Wielkopolska

Opis:

The purpose of this article is to explain why the communities of the Przeworsk and Wielbark cultures occupying Wielkopolska in the broadly-defined Roman period used two different types of cremation urns for burying their dead. The paper provides a description of both types of urns. Type I comprises thin walled, carefully made and burnished vase shaped vessels and situlas. Type II groups carefully made vessels with rough or roughened outside surface: pots, vase-shaped vessels and even cups. This paper provides an overview of previous ideas and interpretations of the phenomenon and examines the construction, grave goods and location of selected graves from two cemeteries of the Przeworsk and Wielbark cultures in Wielkopolska: Kuny and Kowalewko. A hypothesis explaining the presence of two urn types at that time in Wielkopolska is then proposed along with some research postulates and questions that will enable and guide further discussion on this intriguing issue.

Źródło:

Folia Praehistorica Posnaniensia; 2016, 21; 505-519
0239-8524
2450-5846

Pojawia się w:

Folia Praehistorica Posnaniensia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 42.

Tytuł:

Description of energy balance for selected refrigeration furniture
Wyznaczenie bilansu energii dla wybranych mebli chłodniczych

Autorzy:

Bernat, Tomasz
Bieńczak, Krzysztof
Bagusławski, Leon

Powiązania:

https://bibliotekanauki.pl/articles/337551.pdf

Data publikacji:

2019

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych

Tematy:

heat balance
refrigeration furniture
stratification
bilans cieplny
meble chłodnicze
stratyfikacja

Opis:

Food is a product that breaks down quickly and easily. Therefore, it require storage at a low and controlled temperature. Maintaining a constant temperature inside the refrigeration furniture requires removal of the heat which enters the interior of the furniture and the heat produced by stored products. The paper presents methods of heat transfer implementation, such as: heat conduction (including fluid stratification case), natural and forced convection and radiation. Heat balance have been presented for selected refrigeration furniture including the characteristics of its individual parameters. A method for determining the components of a heat balance is also presented.
Żywność jest produktem, który szybko i łatwo się psuje, dlatego wymaga przechowywania w kontrolowanej temperaturze. Zachowanie niezmiennej temperatury wewnątrz mebla chłodniczego wymaga odprowadzenia ciepła, które dopływa do wnętrza mebla z otoczenia i ciepła wytwarzanego przez przechowywany produkt. Omówiono sposoby realizacji procesu przepływu ciepła takie jak: przewodzenie ciepła (w tym stratyfikacja), konwekcja naturalna i sztuczna oraz promieniowanie. Przedstawiono bilans cieplny dla wybranych mebli chłodniczych wraz z charakterystyką jego poszczególnych parametrów. Zaprezentowano również sposób pozwalający wyznaczyć składowe bilansu ciepła.

Źródło:

Journal of Research and Applications in Agricultural Engineering; 2019, 64, 2; 11-14
1642-686X
2719-423X

Pojawia się w:

Journal of Research and Applications in Agricultural Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 43.

Tytuł:

On stratification of population on the basis of auxiliary variable and the selected sample
O warstwowaniu populacji na podstawie zmiennej pomocniczej i próby po jej wylosowaniu

Autorzy:

Wywiał, Janusz

Powiązania:

https://bibliotekanauki.pl/articles/905368.pdf

Data publikacji:

2002

Wydawca:

Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego

Tematy:

stratification after sample selection
conditional estimation
conditional mean
conditional variance

Opis:

Survey sampling conditional methods are usually connected with poststratification estimators for domains and with inference on the basis of regression models or contingency tables. These problems were considered e.g. by Rao (1985), Tillé (1998), Williams (1962). The problem of stratification of a population on the basis of observations on the variable under study in a sample was considered by e.g. Dalenius (1957). We deal with the problem of appropriate division of a simple sample into sub-samples of equal sizes. This partition of the sample leads to clustering a population into sub-populations. Each of these sub-populations includes one and only one previously created sub-sample. The linear combinations of statistics from the sub-samples are used for estimation of a population mean. The coefficients of this linear combination are proportionate to the sizes of the sub-populations. This statistic is the unbiased estimator of the population mean. The variance of the estimator has been derived. The example of determining of the estimator parameters is presented. Moreover, some generalisations of proposed estimators are suggested.
Problem estymacji wartości przeciętnej w populacji na podstawie próby prostej losowanej bezzwrotnie z populacji ustalonej i skończonej jest rozważany. Zakładamy, że wartości zmiennej pomocniczej są obserwowane w całej populacji. Próba prosta, po jej wylosowaniu, jest porządkowana zgodnie z rosnącymi wartościami zmiennej pomocniczej. Następnie próba ta jest dzielona na H > 1 równolicznych podprób. Potem zlicza się, ile jest elementów populacji pomiędzy elementami rozdzielającymi podpróby. Udziały tych liczebności stanowią współczynniki kombinacji liniowej, m.in. średnich z podprób. Taki warunkowy estymator daje nieobciążone (warunkowo i bezwarunkowo) oceny wartości średniej w populacji. Pokazano przykład oceny wartości średniej w populacji z wyznaczeniem wartości wariancji warunkowych i bezwarunkowych estymatora.

Źródło:

Acta Universitatis Lodziensis. Folia Oeconomica; 2002, 156
0208-6018
2353-7663

Pojawia się w:

Acta Universitatis Lodziensis. Folia Oeconomica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 44.

Tytuł:

Omnivorism of Eating and ‘Highbrow–Lowbrow’ Distinction: Cultural Stratification in Poland

Autorzy:

Domański, Henryk

Powiązania:

https://bibliotekanauki.pl/articles/1790796.pdf

Data publikacji:

2017-09-14

Wydawca:

Polskie Towarzystwo Socjologiczne

Tematy:

social stratification
omnivorism
patterns of eating
highbrow and lowbrows
lifestyle

Opis:

The idea of the cultural omnivore is increasingly popular. Research in this vein argues that upper-middle class individuals prefer an above-average diversity of art, and that this diversity of tastes is the new marker of high status. Using data from the 2013 national survey, the current study replicates studies carried out in Western societies with respect to patterns of eating. By analyzing the preferences of tastes I try to establish, first-whether omnivorism in eating is mostly displayed among representatives of highbrow culture, referred to intelligentsia, second-to what extent it replaces hierarchical distinction between highbrow and lowbrow categories. It confirms that omnivorism in eating in Poland exists and dominates among higher managers and specialists-they overrun owners, middle lower classes, working class and farmers. Furthermore, although the cultural omnivorism is a new taste pattern, it correlates strongly with the cultural division in highbrow and lowbrow categories.

Źródło:

Polish Sociological Review; 2017, 199, 3; 299-314
1231-1413
2657-4276

Pojawia się w:

Polish Sociological Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 45.

Tytuł:

Socjalizacyjna funkcja szkolnictwa w Afryce Południowej w okresie apartheidu (1948-1994)
Socialization Function of South African Education System During the Apartheid (1948-1994)

Autorzy:

Gmerek, Tomasz

Powiązania:

https://bibliotekanauki.pl/articles/915988.pdf

Data publikacji:

2020-01-19

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

education
socialization
indoctrination
South Africa
Apartheid
discrimination
curriculum
segregation
stratification

Opis:

The article is devoted to the discussion of socialization processes in the South African apartheid sysem of education (1948-1994). The socialization function of education is considered in-depth, with special attention paid to the racial inequality and discrimination in South African society. The article includes the consideration of school indoctrination and different aims of education and curricula in education subsystems for different racial groups in an Apartheid society.

Źródło:

Studia Edukacyjne; 2017, 46; 235-252
1233-6688

Pojawia się w:

Studia Edukacyjne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 46.

Tytuł:

Relationships between water temperature, nutrients and dissolved oxygen in the Northern Gulf of Aqaba, Red Sea

Autorzy:

Manasrah, R.
Raheed, M.
Badran, M.I.

Powiązania:

https://bibliotekanauki.pl/articles/49092.pdf

Data publikacji:

2006

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

stratification
nutrient
Aqaba Gulf
temperature
sea water
Red Sea
oxygen

Opis:

Five years (1998, 2000–2003) of summer records of temperature, nutrients and dissolved oxygen concentrations in the upper 400 m of the water column of the northern Gulf of Aqaba were employed to produce a simple statistical model of the relationship between temperature versus nitrate, phosphate, silicate andd issolved oxygen concentrations. Temperature profiles in the upper 400 m during summer revealeda clear thermocline in the upper 200 m. This was reflected in nutrient ando xygen concentrations as nitrate, phosphate, and silicate increasedfr om the surface to deep water while dissolved oxygen decreased. The best fit relationship between temperature versus nitrate andphosphate was inverse linear and the best fit correlation between temperature versus silicate andd issolvedo xygen was fractional. The observedn utrient concentrations were shaped by a combination of the hydrodynamics and biological factors. Deep winter mixing and high nutrient concentrations dominate during winter. Shortly after the water stratifies in spring, the nutrients are drawn down by phytoplankton during the spring bloom and remain low throughout the rest of the year. The regression equations presented here will be useful in estimating nutrient concentrations from temperature records as long as the annual natural cycle is the main driver of nutrient concentrations and external inputs are insignificant. Deviations from these relationships in the future could provide insight into modifications in the nutrient concentrations probably resulting from new nutrient sources, such as anthropogenic inputs.

Źródło:

Oceanologia; 2006, 48, 2
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 47.

Tytuł:

<i>Homo hierarchicus</i> w nowoczesnej utopii (na przykładzie <i>Roku potopu</i> Margaret Atwood i <i>Atlasu chmur</i> Davida Mitchella)
<i>Homo Hierarchicus</i> in Modern Utopia (on the Basis of <i>The Year of the Flood</i> by Margaret Atwood and <i>The Cloud Atlas</i> by David Mitchell)

Autorzy:

Banaś, Maria Anna

Powiązania:

https://bibliotekanauki.pl/articles/467117.pdf

Data publikacji:

2018

Wydawca:

Wydawnictwo Uniwersytetu Śląskiego

Tematy:

socjologia literatury
utopia
stratyfikacja społeczna
sociology of literature
social stratification

Opis:

Maria Anna BanaśThe College of Foreign LanguagesThe Technical University of SilesiaGliwice, Poland Homo Hierarchicus in Modern Utopia (on the Basis of The Year of the Flood by Margaret Atwood and The Cloud Atlas by David Mitchell) Abstract: The paper explores the hierarchical model of society as shown in the dystopian novel The Year of the Flood by Margaret Atwood and in one of the narratives of Cloud Atlas – Orison of Sonmi 451 by David Mitchell. The chief aim of the paper is to identify both similarities and differences  manifested in the construction of the social world. A special emphasis has been placed on  the role of a hierarchical order present in these narratives which has a direct impact on the structure of  communities operating within  the social world. In the analysis the author refers to the theory of a  French sociologist and anthropologist Louis Dumont, who sees hierarchy as a fundamental principle organizing social life typical of traditional societies and  perceived as an anomaly and deviation  in Western culture, and to the model of social structure as shown by Jacek Szmatka, who sees it as an indispensable tool in grasping and understanding processes taking place within the community.Keywords: sociology of literature, utopia, social stratification
For an abstract in English, scroll down.  Maria Anna BanaśKolegium Języków Obcych Politechniki Śląskiej Homo hierarchicus w nowoczesnej utopii (na przykładzie Roku potopu Margaret Atwood i Atlasu chmur Davida Mitchella) Abstrakt: W eseju autorka podejmuje próbę  opisu  hierarchicznego  modelu społeczeństwa ukazanego w dystopijnej powieści kanadyjskiej pisarki Margaret Atwood Rok potopu oraz w jednej z narracji Atlasu chmur – Anyfonie Sonmi 451 brytyjskiego pisarza Davida Mitchella. Celem autorki jest  wskazanie elementów wspólnych dla  tych konstrukcji świata społecznego ze szczególnym uwzględnieniem roli hierarchicznego porządku przedstawionego we wspomnianych przedmiotach analizy, a następnie zwrócenie uwagi na różnice w funkcjonowaniu wybranych zbiorowości działających w obrębie szeroko rozumianego świata społecznego. W analizie autorka odwoła się do teorii  francuskiego socjologa i antropologa Louis Dumont, dla którego hierarchia stanowi fundamentalną zasadę organizującą życie społeczne, typową w społeczeństwach tradycyjnych  a postrzeganą za anomalię i odstępstwo od normy w społecznościach nowoczesnych a także do schematu struktury świata społecznego autorstwa Jacka Szmatki, istotnego dla  uchwycenia i zrozumienia procesów zachodzących w obrębie danej zbiorowości i relacji tej zbiorowości z resztą społeczeństwa.Słowa kluczowe: socjologia literatury, utopia, stratyfikacja społeczna Homo Hierarchicus in Modern Utopia (on the Basis of The Year of the Flood by Margaret Atwood and The Cloud Atlas by David Mitchell) Abstract: The paper explores the hierarchical model of society as shown in the dystopian novel The Year of the Flood by Margaret Atwood and in one of the narratives of Cloud Atlas – Orison of Sonmi 451 by David Mitchell. The chief aim of the paper is to identify both similarities and differences  manifested in the construction of the social world. A special emphasis has been placed on  the role of a hierarchical order present in these narratives which has a direct impact on the structure of  communities operating within  the social world. In the analysis the author refers to the theory of a  French sociologist and anthropologist Louis Dumont, who sees hierarchy as a fundamental principle organizing social life typical of traditional societies and  perceived as an anomaly and deviation  in Western culture, and to the model of social structure as shown by Jacek Szmatka, who sees it as an indispensable tool in grasping and understanding processes taking place within the community.Keywords: sociology of literature, utopia, social stratification

Źródło:

ER(R)GO: Teoria – Literatura – Kultura; 2018, 36
1508-6305
2544-3186

Pojawia się w:

ER(R)GO: Teoria – Literatura – Kultura

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 48.

Tytuł:

The Myth of American Dream

Autorzy:

Tittenbrun, Jacek

Powiązania:

https://bibliotekanauki.pl/articles/1194020.pdf

Data publikacji:

2015

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

American Dream
income gap
social mobility
social stratification
subjectivism
wealth gap

Opis:

The American Dream is a deep-seated element of collective American consciousness. Yet, contrary to any culturalist approaches, there is a need to go beyond the subjective to consider the relationship of the former to the objective social relations. And from this point of view it turns out that the U.S. society fares very poorly on the scale of social mobility and equality. In other words, the said doctrine is but a myth bearing no correspondence to reality.

Źródło:

World Scientific News; 2015, 9; 1-16
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 49.

Tytuł:

Zmiany wartości wskaźników jakości wody wraz z głębokością przy ujęciu wody pitnej ze zbiornika Dopczyce
Changes of Water Quality Indices with Depth at Drinking Water Intake from Dobczyce Reservoir

Autorzy:

Bogdał, A.
Policht-Latawiec, A.
Kołdras, S.

Powiązania:

https://bibliotekanauki.pl/articles/1818622.pdf

Data publikacji:

2015

Wydawca:

Politechnika Koszalińska. Wydawnictwo Uczelniane

Tematy:

zbiornik wodny
jakość wody
eutrofizacja
stratyfikacja
reservoir
quality water
eutrophication
stratification

Opis:

The paper presents a comparative and statistical analysis of the changes of water quality indices values with depth on the water intake from Dobczyce reservoir. Moreover, seasonal variability of the tested indices was analysed and water quality with its usable values were assessed. Dobczyce reservoir is a 12 km long and 1.0 km wide submountain dam reservoir. The reservoir area at the maximum impoundment level (maximum water level) is 915 ha, its capacity 112.1 mln m3 and mean depth 10.2 m. It is situated 20 south of Krakow, in the malopolskie voivodship, myślenicki county. Raw water from the reservoir is collected on tower intake which makes possible water intake from three depth levels. Real water extraction on the intake is about 1.0 m3 ∙s-1, guaranteed 2.5 m3 ∙ s-1 and permissible 5.5 m3 ∙ s-1. The investigations conducted in 2008 and 2009 covered selected physicochemical water indices: the temperature, pH, turbidity, electrolytic conductivity, total suspended solids, dissolved oxygen, oxygen saturation, silica, phosphates, total phosphorus, as well as bioindicator – chlorophyll „a”. At weekly intervals, water samples for laboratory analyses were collected from three depth levels of the reservoir directly at the tower water intake for Krakow. Physicochemical and biological analyses, using referential methods were conducted in the Laboratory of the Municipal Waterworks and Sewer Enterprise in Krakow. For each analysed index mean values for 2008 and 2009 and for the 2008–2009 period of analyses were computed, divided into the winter (October-March) and summer (April-September) half year and for the calendar year (January-December). Statistical significance of the differences between the values of individual indices registered on various depth levels on the reservoir were estimated by nonparametric U Manna-Whitney’a significance test, on α = 0.05. For all investigated indices box-whiskers plots were made which suggestively presented the median, extreme values and 10–90% percentiles. The assessment of Dobczyce reservoir water for drinking water supply for people was conducted following the methodology described in the Regulation of the Minister of the Environment [Dz. U. 2002 Nr 204, poz. 1728]. Selected quality parameters of the tested water were also confronted with the requirements stated in the Regulation of the Minister of Health dated 29 March 2007 on drinking water quality for people [Dz. U. 2007 nr 61, poz. 417]. Trophic state of Dobczyce reservoir was assessed on the basis of total phosphorus and chlorophyll „a” concentrations, using the criteria stated by OECD. On the basis of data analysis it was established that mean annual values of water temperature, pH, oxygen saturation and concentrations of dissolved oxygen and chlorophyll „a” were decreasing with depth. On the other hand, in the vertical profile, turbidity, electrolytic conductivity, as well concentrations of total suspended solids, phosphates and total phosphorus were increasing. Higher water temperatures and pH values were noted in the summer half-year, whereas dissolved oxygen, oxygen saturation and phosphates in the winter half-year. On average for the investigated period, water collected in Dobczyce reservoir on the depth of 3.55 and 9.65 m was classified, respectively to A2 and A3 water category, therefore it required appropriate typical or high performance typical treatment. On the other hand, due to low oxygen saturation in the summer half-year, water on the level of 15.87 m did not meet the standards. Irrespective of the depth, pH and salinity fulfilled the requirements for water intended for direct consumption by people, whereas water turbidity was unsatisfactory all the time. Mean annual concentrations of total phosphorus qualify water collected in the reservoir as mezotrophic, while average and maximum concentrations of chlorophyll „a” allow to regard the water as respectively mezotrophic or eutrophic. Due to relatively big differences in values of the analysed indices, better quality raw water intended for running water outside the growing period supply should be skillfully collected from various depths – generally in the from the shallowest level, in the vegetation season from the middle level and from the lowest level on case higher concentrations of chlorophyll „a” and plankton occur on the first two depths of the reservoir.

Źródło:

Rocznik Ochrona Środowiska; 2015, Tom 17, cz. 2; 1239-1258
1506-218X

Pojawia się w:

Rocznik Ochrona Środowiska

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 50.

Tytuł:

Wykorzystanie analizy skupień w procesach poznawczych stratyfikacji przedsiębiorstw transportowych
Cluster analysis application in cognitive processes of transport enterprise stratification

Autorzy:

Letkiewicz, A.
Majecka, B.
Suchanek, M.

Powiązania:

https://bibliotekanauki.pl/articles/134574.pdf

Data publikacji:

2016

Wydawca:

Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego

Tematy:

przedsiębiorstwo transportowe
stratyfikacja
analiza skupień
cluster analysis
economic stratification
transport enterprises

Opis:

Celem artykułu jest wykazanie użyteczności narzędzia, jakim jest analiza skupień, w procesach porządkowania stratyfikacyjnego przedsiębiorstw transportowych. Analiza ta, pozwalając na wykrycie określonych struktur w przestrzeni rynku transportowego, może stać się punktem wyjścia do dalszych badań nad wyjaśnianiem procesów stratyfikacji podmiotów tego rynku.
The research on transport may concern many issues, including the entity structures of the transport market, which is filled with diversified behavior of different entities, both on the supply and on the demand side of the market. On each of the sides one can observe layers of entities characterized by similar behavior – in the stratification systems of the market, individual entities in one layer show a similarity of the behavior, which is different between the layers. The goal of the article is to prove the usefulness of the cluster analysis in the processes of stratification arrangement of the transport enterprises. The analysis, by allowing the detection of particular structures in the transport market may become a starting point to further research on the explanation of stratification processes in that market. A ranking of transport and haulage enterprises, in which they were grouped according to the revenues in the year 2014 was used in the article. The procedure of k-means clustering and a further ANOVA were used to obtain the results which allow to conclude that there are in fact clusters on the market, which are different when it comes to crucial economic data. This leads to a conclusion that the use of presented research methods allows to show the processes on the transport market in a new way, thus proving the practical use of cluster analysis.

Źródło:

Problemy Transportu i Logistyki; 2016, 35, 3; 83-90
1644-275X
2353-3005

Pojawia się w:

Problemy Transportu i Logistyki

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 51.

Tytuł:

The influence of spray guided charge on possibility of stratified mixture formation in SI gasoline direct injection engine

Autorzy:

Sendyka, B.
Kudzia, S.

Powiązania:

https://bibliotekanauki.pl/articles/242770.pdf

Data publikacji:

2007

Wydawca:

Instytut Techniczny Wojsk Lotniczych

Tematy:

SI engine
gasoline direct injection
spray guided
mixture stratification
fuel stream

Opis:

In this paper there has been described the structure of ZI gasoline direct injection engines in which there has been applied spray guided. There has been shown the burning chambers structure of the engines of that type. There has been also presented the modification range of ZI engines equipped with system of gasoline multipoint indirect injection in order to get the gasoline direct injection engine with spray guided. The authors have described the block diagram of fuel supply system of this type of an engine which is being developed in Cracow University of Technology's Combustion Engine Department. Certain information about mechanical modification of engine is given. They have proposed model of fuel air mixture stratification in a combustion chamber of spray guided engine, in which base homogeneous mixture come into being out of the this chamber. In this paper there has been also designated an influence of an angle of crank shaft on initial velocity of fuel stream and on flow intensity of fuel stream that flows through the injector. There also has been presented an influence of air fuel coefficient of homogeneous base mixture on the angle on a crank shaft of ignition charge.

Źródło:

Journal of KONES; 2007, 14, 4; 393-402
1231-4005
2354-0133

Pojawia się w:

Journal of KONES

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 52.

Tytuł:

On Lie algebras of vector fields related to Riemannian foliations

Autorzy:

Rybicki, Tomasz

Powiązania:

https://bibliotekanauki.pl/articles/1311816.pdf

Data publikacji:

1993

Wydawca:

Polska Akademia Nauk. Instytut Matematyczny PAN

Tematy:

Riemannian foliation
Lie algebra
ideal
isomorphism
vector field
generalized manifold
stratification

Opis:

Riemannian foliations constitute an important type of foliated structures. In this note we prove two theorems connecting the algebraic structure of Lie algebras of foliated vector fields with the smooth structure of a Riemannian foliation.

Źródło:

Annales Polonici Mathematici; 1993, 58, 2; 111-122
0066-2216

Pojawia się w:

Annales Polonici Mathematici

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 53.

Tytuł:

Struktura społeczna i postawy a grupy ethosowe (O możliwościach ewolucji społecznej)
SOCIAL STRUCTURE AND ATTITUDES VERSUS ETHOS GROUPS (ON THE POSSIBILITIES OF SOCIAL EVOLUTION)

Autorzy:

Szawiel, Tadeusz

Powiązania:

https://bibliotekanauki.pl/articles/428064.pdf

Data publikacji:

2011

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

ATTITUDES
ETHOS GROUPS
SOCIAL CHANGE
SOCIAL STRUCTURE
THEORIES OF SOCIAL STRATIFICATION

Opis:

The article is a critique of the approaches in Polish sociology at the turn of 1980s that attempt to study social consciousness through social structure. These approaches are coined 'social structure and attitudes' by the author. He claims that these approaches do not allow reconciling the research on the role of social actor with the analysis of wider trends of society writ large. This results in the inability to account for the mechanisms of social change. The existing approaches describe social structure in Poland as passive and incapable of shaping culture. They do not explain what are the mechanisms linking attitudes and social structure. Referring to Weber's sociology, the author suggests that the crystallization of ethos groups in Polish society can be recognized as one of the structuring processes. Taking several exemplary ethos groups (Catholics, counter-culture movements and democratic opposition) as an example, the author considers their potential role in the process of social change.

Źródło:

Studia Socjologiczne; 2011, 1(200); 279-298
0039-3371

Pojawia się w:

Studia Socjologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 54.

Tytuł:

The middle class or you only live twice

Autorzy:

Tittenbrun, Jacek

Powiązania:

https://bibliotekanauki.pl/articles/451795.pdf

Data publikacji:

2015

Wydawca:

Wyższa Szkoła Gospodarki Euroregionalnej im. Alcide De Gasperi w Józefowie

Tematy:

social stratification
class
social differentiation
Warner Marx
Weber them
middle class

Opis:

The main thrust of the paper could be brought down to the thesis that the concept of middle class is an oxymoron. This is the case because there is a contradiction between the associations pertaining to the adjective part of the term in question and those pertinent to its noun part. “The middle” is a hierarchical term, which fits social stratification rather than class, as class relations generally have a more complex character. The said confusion matters because of some important weaknesses of stratification approaches.

Źródło:

Journal of Modern Science; 2015, 27, 4; 479-500
1734-2031

Pojawia się w:

Journal of Modern Science

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 55.

Tytuł:

Viscous dissipation and Joule heating effects on MHD flow of a Thermo-Solutal stratified nanofluid over an exponentially stretching sheet with radiation and heat generation/absorption

Autorzy:

Murugesan, Thiagarajan
Kumar, M. Dinesh

Powiązania:

https://bibliotekanauki.pl/articles/1075514.pdf

Data publikacji:

2019

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Nanofluid
double stratification
exponentially stretching sheet
heat generation/absorption
viscous-ohmic dissipation

Opis:

The present study is focused on the influence of viscous and joules dissipation on magnetohydrodynamic flow of a double-stratified nanofluid past an exponentially stretching sheet in the presence of thermal radiation and heat generation/absorption effects. The governing nonlinear partial differential equations are transformed into a system of nonlinear ordinary differential equations using similarity variables and then solved numerically for these equations is procured by employing the Nachtsheim-Swigert shooting technique scheme together with Runge-Kutta Fourth-Order method. A parametric analysis has been carried out to investigate the impacts of physical parameters taken in the problem. The pattern worked for the nanofluid transport equations unified the impacts of thermophoresis and Brownian motion. Numerical results are obtained for the velocity, temperature and concentration in the boundary layer region is studied in elaborate. The impact of physical interest such as local skin friction coefficient, local nusselt number, and local Sherwood number are also investigated numerically and are tabulated. It is remarked that Schmidt number and thermal stratification parameter decreases the dimensionless temperature, during the solutal stratification parameter decreases the dimensionless concentration.

Źródło:

World Scientific News; 2019, 129; 193-210
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 56.

Tytuł:

Modelowanie stratyfikacji ciepła w zasobnikach ciepła słonecznych instalacji grzewczych
Modeling of heat stratification in storage tanks of solar heating systems

Autorzy:

Chwieduk, D.
Bigorajski, J.
Chwieduk, M.

Powiązania:

https://bibliotekanauki.pl/articles/362500.pdf

Data publikacji:

2015

Wydawca:

Instytut Fizyki Budowli Katarzyna i Piotr Klemm

Tematy:

energia słoneczna
magazynowanie ciepła
stratyfikacja ciepła
solar energy
heat storage
heat stratification

Opis:

Artykuł przedstawia rozważania dotyczące uwzględniania stratyfikacji ciepła w zasobnikach ciepła w analizach funkcjonowania słonecznych instalacji grzewczych. Opisano model działania instalacji słonecznej do podgrzewania c.w.u. i do ogrzewania pomieszczeń. Zaprezentowano wyniki symulacji numerycznej funkcjonowania różnych wybranych typów instalacji. Opisano wpływ występowania stratyfikacji ciepła w zasobnikach na pokrycie zapotrzebowania na ciepło.
The paper presents consideration of taking into account the heat stratification in storage tanks in analysis of solar heating systems operation. Model of DHW and space heating solar system have been described. Results of numerical simulation of different types of solar heating systems operation have been presented. Influence of the thermal stratification in storage tanks on the rate of heat supplied to a building has been described.

Źródło:

Fizyka Budowli w Teorii i Praktyce; 2015, T. 7, nr 3, 3; 17-22
1734-4891

Pojawia się w:

Fizyka Budowli w Teorii i Praktyce

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 57.

Tytuł:

Anton Tomaž Linhart Between the German and the Slovenian Language

Autorzy:

Strsoglavec, Đurđa

Powiązania:

https://bibliotekanauki.pl/articles/635774.pdf

Data publikacji:

2013

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

Slovenian Enlightenment
Anton Tomaž Linhart
social and functional language stratification
Slovenian historiography

Opis:

Anton Tomaž Linhart (1756–1795), is a critical intellectual and scholar of the age of Slovenian Enlightenment, who introduced causal interpretation of history into Slovenian historiography and started its scientifical philosophy by his historical work Versuch einer Geschichte von Krain und den übrigen Ländern der südlichen Slaven Österreichs (1778, 1791). He was an open-minded man, at first deist under the influence of English philosophers, and afterward agnostic under the influence of French materialists and atheists, a man torn between his work as a scholar and a reformer and between the German and the Slovenian language. Linhart’s first works were written in German. Miss Jenny Love (1780) is an attempt of a tragedy, written according to the rules of the Enlightenment period tragedy, exhibiting the contrast between the corrupted nobility and the middle class. The collection of poems Blumen aus Krain für das Jahr 1781 is Linhart’s attempt of contemporary classicist poetry in the rococo fashion and after the manner of the Anacreontic and even Pre-Romantic poetry. Linhart wrote his first Slovenian-language drama Županova Micka (1789), while his second Slovenian drama called Ta veseli dan ali Matiček se ženi (1790) is the most important literary work of the Slovenian Enlightenment and the most wide-ranging echo of the French revolution in the Slovenian literary production of the 18th century. Linhart’s dramas Županova Micka and Matiček are a manifesto of Slovenehood and democracy expressed in dramatic form, and a declaration of support to the Slovenian people and their struggle against feudalism.

Źródło:

Poznańskie Studia Slawistyczne; 2013, 5
2084-3011

Pojawia się w:

Poznańskie Studia Slawistyczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 58.

Tytuł:

Warunki termiczno-tlenowe jeziora charzykowskiego w latach 2014-2016
Thermal and oxygen conditions of lake charzykowskie in the years 2014-2016

Autorzy:

Garbacz, J. K.
Cieściński, J.
Ciechalski, J.
Dąbkowski, R.
Cichowska, J.

Powiązania:

https://bibliotekanauki.pl/articles/1359518.pdf

Data publikacji:

2018

Wydawca:

Polskie Towarzystwo Medycyny i Techniki Hiperbarycznej

Tematy:

stratyfikacja wód
deficyt tlenu
Jezioro Charzykowskie
water stratification
oxygen deficit
Lake Charzykowskie

Opis:

W pracy przedstawiono analizę warunków termiczno-tlenowych Jeziora Charzykowskiego w latach 2014-2016 w okresie od maja do sierpnia. Pomiary prowadzono raz w miesiącu, w punktach reprezentujących trzy odmienne baseny w misie badanego jeziora. Wyniki pomiaru temperatury i zawartości tlenu rozpuszczonego w wodzie rejestrowano co 1m od powierzchni do dna w najgłębszym miejscu każdego basenu. Poddano analizie zmiany temperatury i zawartości tlenu rozpuszczonego w każdym z reprezentatywnych punktów pomiarowych dla poszczególnych plos jeziora. Wykazano, że deficyt tlenu rozpuszczonego w wodzie warstw naddennych występuje już na początku okresu stagnacji letniej, a w jego szczycie (sierpień) strefa beztlenowa obejmuje hypolimnion i część metalimnionu. Potwierdzono hipotezę zakładającą, że miąższość warstw termicznych jest zróżnicowana w obrębie misy jeziornej. Wykazano także, że krzywa zawartości tlenu w punktach reprezentatywnych, we wszystkich latach w których prowadzono badania, ewoluuje do postaci klinogrady w szczycie stagnacji letniej, gdzie stężenie tlenu rozpuszczonego maleje wraz z głębokością.
This paper presents an analysis of thermal and oxygen conditions of the Charzykowskie Lake in the years 2014-2016 in the period from May to August. The measurements were carried out once a month, at points representing three different basins in the lake, and the temperatures and oxygen content dissolved in the water were recorded every 1m from the surface to the bottom at the deepest point of each basin. The changes in temperatures and content of dissolved oxygen were analysed in each of the representative measurement points for particular parts of the lake. It has been shown that the deficit of oxygen dissolved in the bottom layers of the water starts occurring by the beginning of the summer stagnation period, whereas at its peak (August) the anaerobic zone includes hypolimnion and part of the metalimnion. The hypothesis that the thickness of the thermal layers varies within the lake basin was confirmed. It was also shown that the oxygen content curve at representative points, in all years of research, evolves to the form of a clinograde at the peak of summer stagnation, where the concentration of dissolved oxygen decreases with the depth.

Źródło:

Polish Hyperbaric Research; 2018, 1(62); 85-96
1734-7009
2084-0535

Pojawia się w:

Polish Hyperbaric Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 59.

Tytuł:

Variability of currents over the southern slope of the Gulf of Finland

Autorzy:

Suhhova, I.
Pavelson, J.
Lagemaa, P.

Powiązania:

https://bibliotekanauki.pl/articles/48946.pdf

Data publikacji:

2015

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

stratification
upwelling
downwelling
Finland Gulf
coastal sea water
seasonal thermocline
current velocity

Źródło:

Oceanologia; 2015, 57, 2
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 60.

Tytuł:

On the buoyant sub-surface salinity maxima in the Gulf of Riga

Autorzy:

Liblik, T.
Skudra, M.
Lips, U.

Powiązania:

https://bibliotekanauki.pl/articles/48990.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

thermohaline structure
Riga Gulf
water column
temperature
salinity
stratification
water exchange
intrusion

Opis:

Thermohaline structure in the Gulf of Riga (GoR) was investigated by a multiplatform measurement campaign in summer 2015. Stratification of the water column was mainly controlled by the temperature while salinity had only a minor contribution. Buoyant salinity maxima with variable strength were observed in the intermediate layer of the Gulf of Riga. The salinity maxima were likely formed by a simultaneous upwelling—downwelling event at the two opposite sides of the Irbe strait. The inflowing salty water did not reach the deeper (> 35 m) parts of the gulf and, therefore, the near-bottom layer of the gulf remained isolated throughout the summer. Thus, the lateral water exchange regime in the near bottom layer of the Gulf of Riga is more complicated than it was thought previously. We suggest that the occurrence of this type of water exchange resulting in a buoyant inflow and lack of lateral transport into the near-bottom layers might contribute to the rapid seasonal oxygen decline in the Gulf of Riga

Źródło:

Oceanologia; 2017, 59, 2
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 61.

Tytuł:

Dormancy breaking, germination, and seedling emergence from seeds of Crataegus submollis

Autorzy:

Bujarska-Borkowska, B

Powiązania:

https://bibliotekanauki.pl/articles/41762.pdf

Data publikacji:

2007

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

hawthorn
Crataegus submollis
seed
seedling emergence
germination
dormancy breaking
stratification
scarification
desiccation
storage

Opis:

Effects of several stratification variants on seed dormancy breaking were compared in Crataegus submollis Sarg. (hairy cockspur-thorn or Quebec hawthorn). Ripe seeds were collected (in October), cleaned, and dried to a moisture content of 7–12%. Seed dormancy in this species was broken most effectively by warm-cold stratification of nutlets, in a substrate or without any substrate, at 15~25°/3°C or 20~30°/3°C, i.e. with a cyclically alternating warm stage (16+8 hrs or 24+24 hrs/cycle) lasting 16–20 weeks, followed the cold stage lasting ca. 20 weeks, i.e. till the appearance of the first germinating seeds. After stratification, emergence rate is equally high (ca 50%) at cyclically alternating temperatures of 3~15°C and 3~20°C (16+8 hrs). Chemical scarification of nutlets in 96% sulphuric acid for 3 hrs, followed by warm-cold stratification at 20~30°/3°C, with a short, 4-week warm stage, also ensures a high emergence rate (58%). Seed desiccation (in nutlets) slowly to a moisture content of 10–12%, after stratification in a substrate or without any substrate as well as after scarification, results in a reduced emergence rate, especially if seeds are dried to the lower moisture content. Seed storage (in nutlets after drying to a moisture content of 10%) for 10 years at –3°C, does not decrease the emergence rate (93%) after stratification at 20~30°/3°C in a substrate, with a cyclically alternating warm stage (24+24 h) lasting 16 weeks.

Źródło:

Dendrobiology; 2007, 58; 9-15
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 62.

Tytuł:

Winter upwelling in the Gulf of Finland, Baltic Sea

Autorzy:

Suursaar, U.

Powiązania:

https://bibliotekanauki.pl/articles/2078916.pdf

Data publikacji:

2021

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

upwelling
winter
nearshore region
Finland Gulf
Baltic Sea
stratification
vertical flux
water temperature

Opis:

Traditionally, upwelling-related studies in the Baltic Sea have been limited to the period from May to September. Based on wintertime in situ measurements at two nearshore locations in the Gulf of Finland, clear evidence of winter “warm” upwelling events was detected and analysed. The process was very common. At a 10 m deep location, upwelling caused water temperature (T) to switch from 0—1 to 4—5°C and salinity (S) to switch from 4.5 to 6 PSU; at 20 m depth it caused a switch in T between 1 and 2—4°C and in S between 5.5 and 6.8 PSU. Differently from summer upwelling, T and S variations were positively correlated to each other. Salinity variations remained roughly the same throughout the winter, whereas T differences were higher in winter onset, then decreased to ca. 1°C, and increased again after the process reversed to summer-type upwelling in April—May. Based on analysis of SatBaltyk (January to March) sea surface temperature and salinity product imagery, winter upwelling occurrence along the North Estonian coast was 21—28% over 2010—2021, and slightly less along the Finnish coast. Regarding S variations, winter upwelling occurred with roughly similar frequencies and impacts in the northern and southern parts of the gulf. However, the impacts on T and sea ice conditions were highly asymmetrical. Upwelling kept the Estonian coast ice-free longer and water temperatures slightly higher than at the Finnish coast. Winter upwelling as a phenomenon has long been ignored and therefore probably underestimated.

Źródło:

Oceanologia; 2021, 63, 3; 359-369
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 63.

Tytuł:

Analysis of temperature conditions and dissolved oxygen concentrations in the Pilwa Bay (Lake Dobskie)
Analiza warunków termiczno-tlenowych wód w Zatoce Pilwa (Jezioro Dobskie)

Autorzy:

Rafałowska, M.
Sobczyńska-Wójcik, K.

Powiązania:

https://bibliotekanauki.pl/articles/953645.pdf

Data publikacji:

2013

Wydawca:

Towarzystwo Chemii i Inżynierii Ekologicznej

Tematy:

temperature profile
oxygen profile
thermal stratification
bay
profile termiczno-tlenowe
stratyfikacja termiczna
zatoka

Opis:

This study was carried out in the Pilwa Bay of Lake Dobskie located in the mesoregion known as the Land of Great Masurian Lakes, Gizycko district. Temperature and oxygen conditions in the western, central and eastern (connected to Lake Dobskie) parts of the Pilwa Bay were studied by analyzing the vertical distribution of temperature and dissolved oxygen concentrations in the winter and summer seasons of three consecutive years (2005–2007). Measurements were performed using the WTW OxiTop OC 100 system with automatic temperature compensation. During winter stagnation, the highest dissolved oxygen content was noted in the top water layer under ice cover, and oxygen concentrations varied widely between years. An analysis of temperature and oxygen profiles revealed an insignificant temperature difference of approximately 1–2 ^oC between the surface and bottom layers of water, which indicates that the studied bay was not characterized by a summer stratification pattern typical of deep water bodies.
Badaniami objęto zatokę Pilwa jeziora Dobskiego położonego na obszarze mezoregionu Krainy Wielkich Jezior Mazurskich, w powiecie giżyckim. W niniejszej pracy przedstawiono warunki termiczno-tlenowe wód zatoki. Podczas trzyletnich prac badawczych (2005–2007) w okresie zimy i lata wykonano w zatoce (w części zachodniej, środkowej i wschodniej połączonej z głównym akwenem jeziora Dobskiego) pomiary rozkładu pionowego temperatury i tlenu rozpuszczonego. Pomiarów dokonano za pomocą sondy tlenowej z automatyczną kompensacją temperatury (WTW OXI Top OC 100). 1272 Małgorzata Rafałowska and Katarzyna Sobczyńska-Wójcik W wyniku badań stwierdzono, że w czasie stagnacji zimowej największa zawartość tlenu rozpuszczonego znajdowała się w górnej warstwie pod powierzchnią lodu, a przebieg zmienności stężenia tlenu był bardzo zróżnicowany w poszczególnych latach. Z analizy profilu termiczno-tlenowego wynika, że istnieje niewielka różnica temperatur między powierzchnią lustra wody a dnem i wynosi ona około 1–2 ^oC, w związku z czym, nie można mówić o typowej stratyfikacji letniej, jaka występuje w akwenach głębokich.

Źródło:

Ecological Chemistry and Engineering. A; 2013, 20, 11; 1265-1273
1898-6188
2084-4530

Pojawia się w:

Ecological Chemistry and Engineering. A

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 64.

Tytuł:

Rola gospodarcza konsumpcji zbytecznej dóbr luksusowych w dobie kryzysu. Sposoby regulacji konsumpcji na pokaz oraz przeciwdziałanie rozwarstwieniu społecznemu
Conspicuous consumption of luxury goods during the global economic crisis

Autorzy:

Kiszkiel, Łukasz

Powiązania:

https://bibliotekanauki.pl/articles/468672.pdf

Data publikacji:

2014

Wydawca:

Polska Akademia Nauk. Instytut Filozofii i Socjologii PAN

Tematy:

conspicuous consumption
the legitimacy of wealth
social stratification
luxury in Poland
luxury goods

Opis:

This article is concerned about the phenomenon of luxury good consumption during the global economic crisis, specifically “conspicuous consumption.” Despite that social stratification created the phenomenon of conspicuous consumption, it is still practiced by many social groups, as evidenced by the fact that luxury goods in the Polish market has seen a significant increase in sales. The article will also examine the regulations and laws in Poland that should be taken to minimize conspicuous consumption and protect against the delamination of the structure of earnings in society.

Źródło:

Prakseologia; 2014, 155; 203-228
0079-4872

Pojawia się w:

Prakseologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 65.

Tytuł:

Uciążliwość zapachowa związana z rekultywacją Jeziora Kortowskiego metodą selektywnego odprowadzania wody z hypolimnionu
Odor nuisance related to Lake Kortowskie restoration by the hypolimnetic withdrawal

Autorzy:

Wysocka, I.
Brudniak, A.
Kowalczyk, J.

Powiązania:

https://bibliotekanauki.pl/articles/237878.pdf

Data publikacji:

2014

Wydawca:

Polskie Zrzeszenie Inżynierów i Techników Sanitarnych

Tematy:

odory
imisja
siarkowodór
stratyfikacja wody
olfaktometria
odors
immission
hydrogen sulfide
water stratification
olfactometry

Opis:

Wyniki badań jakości powietrza atmosferycznego w okolicy odbiornika wody odprowadzanej z hypolimnionu jeziora wskazują, że takie działania naprawcze dzieją się kosztem zanieczyszczania powietrza. Rekultywacja Jeziora Kortowskiego od 1956 r. realizowana jest metodą selektywnego odprowadzania wody rurociągiem z jego strefy przydennej do odpływającej z jeziora rzeki Kortówki. Z tego względu podjęto próbę zastosowania badań olfaktometrycznych do oceny wpływu rekultywacji jeziora na uciążliwość zapachową tej metody. Badania wykazały, że zanieczyszczenie powietrza substancjami złowonnymi (m.in. siarkowodór) w miejscu wprowadzania wody z hypolimnionu do rzeki ulegało silnym wahaniom, jednak stężenie zapachowe zawsze wynosiło powyżej 200 ou_E/m³. Największe odnotowane stężenie odorów osiągnęło w tym miejscu prawie 40 tys. ou_E/m³. W miarę oddalania się od ujścia rurociągu stężenie substancji zapachowych przeważnie malało aż do zaniku, jednakże było wyczuwalne nawet w odległości ok. 500 m wzdłuż biegu rzeki. Dalsze badania prowadzone są w celu określenia tzw. godzin odorowych oraz wyznaczenia mapy zasięgu uciążliwości zapachowej tego obiektu.
Results of analysis of air quality around the receiver of hypolimnetic discharge demonstrate that such corrective measures take place at the expense of air pollution. Lake Kortowskie (Olsztyn, Poland) restoration is being carried out by selective hypolimnetic water withdrawal through a pipeline to Kortowka river, the receiver of the lake water. This is the reason why olfactometric studies were undertaken to evaluate the impact of lake restoration on the odor nuisance related to the use of this method. The analyses demonstrated that the odorant (e.g. hydrogen sulfide) concentration (immission) in the air just at the river outlet was subject to strong fluctuations. However, it always exceeded 200 ou_E/m³. The highest concentration recorded at this site reached almost 40,000 ou_E/m³. As the distance from the pipeline outlet increased, the immission usually decreased, until no odor could be detected. However, the odor was still detectable for about 500 m along the course of the river. Further studies are being carried out in order to determine the 'odor hours' and produce an odor map for the site.

Źródło:

Ochrona Środowiska; 2014, 36, 4; 29-32
1230-6169

Pojawia się w:

Ochrona Środowiska

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 66.

Tytuł:

The Rhetoric of Healthcare Inequality in Capitalist Classed Societies: Blomkamp’s and Romanek’s Dystopian Visions
Retoryka opieki zdrowotnej w klasowych społeczeństwach kapitalistycznych: dystopijne wizje Blomkampa i Romanka

Autorzy:

Gacka, Joanna

Powiązania:

https://bibliotekanauki.pl/articles/954360.pdf

Data publikacji:

2018

Wydawca:

Uniwersytet Warszawski. Katedra Italianistyki. Polskie Towarzystwo Retoryczne

Tematy:

capitalism
social stratification
healthcare
dystopias
futurology
kapitalizm
rozwarstwienie społeczne
opieka zdrowotna
dystopie
futurologia

Opis:

The future of democratic societies has been widely debated among futurologists, including the possible ways medicine could advance, changing the lives of individuals and communities. Yet, what seems a reasonable question to ask is – how the unequal access to healthcare might perpetuate social and economic divisions and turn democracy into tyranny. This paper advances a rhetorical analysis of the reciprocal relations between healthcare and the classed capitalist system as portrayed in two dystopian pictures: Mark Romanek’s Never Let Me Go (2010) and Neill Blomkamp’s Elysium (2013). The realities depicted in these movies, as well as their narratives, vary considerably; however, they both present medical advancements as means of and reasons for maintaining or perpetuating social inequality. The two dystopias also warn us of some possible dangers posed by the incompatibility of the capitalist mindset with morality and ethics, presenting corruption in healthcare systems as a result of the class conflict.
Chociaż futurolodzy powszechnie dyskutują na temat kierunku rozwoju medycyny i jego potencjalnego wpływu na jednostki i społeczności, rzadziej pojawia się pytanie o dostępność medycyny w przyszłości. Niniejszy artykuł analizuje wzajemne relacje między opieką społeczną a systemem kapitalistycznym ukazane w dystopiach Nie opuszczaj mnie (2010) Marka Romanka i Elizjum (2013) Neilla Blomkampa. Oba filmy przedstawiają wynalazki medyczne jako sposób i powód utrzymywania i pogłębiania nierówności społecznych. Wspomniane dystopie ostrzegają przed potencjalnymi zagrożeniami płynącymi z niespójności kapitalistycznej mentalności z moralnością i etycznością i prezentują deformację systemów opieki zdrowotnej jako rezultat konfliktu klasowego.

Źródło:

Res Rhetorica; 2018, 5, 1; 52-63
2392-3113

Pojawia się w:

Res Rhetorica

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 67.

Tytuł:

The Evolution of the Concept of “Ethnic Minority” in Latvian Sociology in the Period 1991–2009

Autorzy:

Volkov, Vladislav

Powiązania:

https://bibliotekanauki.pl/articles/1929596.pdf

Data publikacji:

2010-03-22

Wydawca:

Polskie Towarzystwo Socjologiczne

Tematy:

ethnicminority
ethno-sociological research
ethnic stratification
ethnic self-identity
interethnic
dialogue
Collective identity

Opis:

The article reveals the evolution of the concept of “ethnic minority” in Latvian sociology. Sociologists’ research carried out in the first half of the 1990s showed the impossibility of applying the concept of “ethnic minority” to all ethnic groups in Latvia. During the 2000s, multicultural ideas of Latvian sociologists about a multi-ethnic Latvian society are taking on more special significance. The concept of “ethnic minority” also is important for the clarification of a concrete issue: in what way is the Russian ethnic group, as the largest ethnic minority, “built in” to the civil community and the Latvian national state.

Źródło:

Polish Sociological Review; 2010, 169, 1; 99-114
1231-1413
2657-4276

Pojawia się w:

Polish Sociological Review

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 68.

Tytuł:

Seed dormancy breaking under controlled conditions in ornamental Cotoneaster spp.

Autorzy:

Bujarska-Borkowska, B.
Szuszka, J.

Powiązania:

https://bibliotekanauki.pl/articles/2077757.pdf

Data publikacji:

2019

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Cotoneaster divaricatus
C. horizontalis
C. hupehensis
dormancy
stratification
scarification
germi-
nation
seedling emergence.

Opis:

Seeds of numerous trees and shrubs require specific environmental conditions to initiate ger- mination. In the genus Cotoneaster, seeds often remain dormant in the ground for 1–2 years. Therefore, knowledge of the method of breaking seed dormancy under controlled conditions is needed. Various tem- peratures of stratification and chemical scarification were tested in this work to break deep double seed dormancy under controlled conditions in C. divaricatus, C. horizontalis and C. hupehensis. Fruits were collected in October, when they were fully ripe. The seeds extracted from the fruits were air-dried at room temper- ature to a moisture content of approximately 10%. Fresh and air-dried seeds were subjected to different variants of cold stratification or warm-cold stratification with different alternating temperatures. The hard seeds of C. hupehensis were also scarified in concentrated sulfuric acid, followed by warm stratification. A seed was counted as germinated when a 1–3 mm long radicle appeared. After stratification (ca. 5% seed ger- mination), seeds were tested for germination and emergence. The dormancy of air-dried C. divaricatus and C. horizontalis seeds was broken most effectively by stratification for 12–16 weeks at 20°/30°C (16/8 hours), followed by 15–18 weeks at 3°C. Scarification in concentrated sulfuric acid for 3 hours followed by warm- cold stratification at 20°/30°C (4 weeks) and 3°C (18 weeks) resulted in the highest germination (48%) of C. hupehensis seeds at 3°/20°C (16/8 hours). In our experiment, we demonstrated that the physiological and physical dormancy of Cotoneaster species can be broken under controlled conditions with stratification or stratification combined with scarification methods

Źródło:

Dendrobiology; 2019, 81; 97-104
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 69.

Tytuł:

Correlation analyses of Baltic Sea winter water mass formation and its impact on secondary and tertiary production

Autorzy:

Hinrichsen, H.H.
Lehmann, A.
Petereit, C.
Schmidt, J.

Powiązania:

https://bibliotekanauki.pl/articles/47630.pdf

Data publikacji:

2007

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

zooplankton
fish egg
development
thermal stratification
winter
water
Baltic Sea
mass formation
survival

Opis:

The thermal stratification of the upper water layers in the Baltic Sea varies seasonally in response to the annual cycle of solar heating and wind-induced mixing. In winter,the stratification down to the halocline is almost completely eroded by convection and strong wind mixing. Monthly averaged temperature profiles obtained from the ICES hydrographic database were used to study the long-term variability (1950 to 2005) of winter water mass formation in different deep basins of the Baltic Sea east of the island of Bornholm. Besides strong interannual variability of deep winter water temperatures,the last two decades show a positive trend (increase of 1–1.5◦C). Correlations of winter surface temperatures to temperatures of the winter water body located directly above or within the top of the halocline were strongly positive until the autumn months. Such a close coupling allows sea surface temperatures in winter to be used to forecast the seasonal development of the thermal signature in deeper layers with a high degree of confidence. The most significant impact of winter sea surface temperatures on the thermal signature in this depth range can be assigned to February/March. Stronger solar heating during spring and summer results in thermal stratification of the water column leading to a complete decoupling of surface and deep winter water temperatures. Based on laboratory experiments,temp erature-dependent relationships were utilised to analyse interannual variations of biological processes with special emphasis on the upper trophic levels (e.g.,stage-sp ecific developmental rates of zooplankton and survival rates of fish eggs).

Źródło:

Oceanologia; 2007, 49, 3
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 70.

Tytuł:

Processes and factors influencing the through-flow of new deepwater in the Bornholm Basin

Autorzy:

Stigebrandt, A.

Powiązania:

https://bibliotekanauki.pl/articles/49102.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

hydrographic condition
Bornholm Basin
salinity
oxygen concentration
vertical stratification
deep water
Baltic Sea

Opis:

This paper is based on the idea that the hydrographical conditions in the Bornholm Basin, and any other basin, can be understood from knowledge of general hydromechanical principles and basin-specific factors. Published results on the variability of the vertical stratification are shown and discussed. Such analyses demonstrate the residence time of water at different depth levels. Different modes of currents forced by winds and by stratification gradients at open vertical boundaries are presented. Vertical mixing is discussed and published results for the Bornholm Basin are shown. An experiment demonstrates that the diffusive properties of the enclosed basin, i.e. below the sill depth of the Słupsk Furrow, can be computed quite well from the horizontal mean vertical diffusivity obtained from historical hydrographical observations. A published two decades long simulation of the vertical stratification shows that the through flow and modification of new deepwater in the Bornholm Basin can be well described based on existing knowledge regarding crucial hydromechanical processes. It also suggests, indirectly, that there should be a weak anticyclonic circulation above the sill depth, which is supported by current measurements.

Źródło:

Oceanologia; 2017, 59, 1
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 71.

Tytuł:

Breaking of seed dormancy, germination and seedling emergence of the common hawthorn (Crataegus monogyna Jacq.)

Autorzy:

Bujarska-Borkowska, B

Powiązania:

https://bibliotekanauki.pl/articles/41072.pdf

Data publikacji:

2002

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

stratification
Crataegus monogyna
common hawthorn
scarification
breaking
seedling emergence
hawthorn
germination
seed dormancy

Opis:

The most advantageous time for collecting fruits of the common hawthorn (Crataegus monogyna Jacq.) falls on October, when they are fully ripe. The stones extracted from the fruits must be dried at room temperature to the moisture content of about 10%. The dormancy of the common hawthorn seeds can be overcome by their stratification in a moist medium in one of the three thermal regimes: - 25°/3°C (16 weeks at 25°C followed by 15-18 weeks at 3°C, i.e. to the time when the first seedlings start to appear) - 20~30°/3°C (16 weeks at 20~30°C (16+8 hrs/day) followed by 15-18 weeks at 3°C, i.e. to the time when first seedlings start to appear) - 20~30°/3°C (16 weeks at 20~30°C (24+24 hrs) followed by 15-18 weeks at 3°C, i.e. to the time when first seedlings start to appear) Having been stratified, the seeds germinate vigorously (in 3-5 weeks) and at a high percentage at temperatures of 3~10°, 3~15°, 3~20° and 3~25°C, (16+8 hrs/day) and the seedlings emerge at 3~20°C (16+8 hrs/day) in 4-6 weeks. Storage for one year at -3°C in the case of the seeds dried after harvest to the moisture content of 10% does not reduce their germination capacity. Stones scarification in concentrated sulphuric acid for 120 minutes followed by stratification at 3°C has an adverse effect on seed emergence at the temperature 3~20°C (16+8 hrs/day). It is recommended that stratified seeds should be sown into the still cool soil at the end of March or the beginning of April, as the increased temperature induces the secondary dormancy in seeds.

Źródło:

Dendrobiology; 2002, 47 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 72.

Tytuł:

Seed dormancy breaking in Crataegus pedicellata

Autorzy:

Bujarska-Borkowska, B

Powiązania:

https://bibliotekanauki.pl/articles/41623.pdf

Data publikacji:

2008

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

scarlet hawthorn
Crataegus pedicellata
seed dormancy breaking
stratification
scarification
germination
seedling emergence
desiccation

Opis:

The effects of stratification and scarification on seed dormancy breaking were compared in scarlet hawthorn (Crataegus pedicellata Sarg. = C. coccinea L). Ripe fruits were collected (in October) and the extracted nutlets were cleaned, and dried to a moisture content of 9–12%. Seed dormancy in this species was broken most effectively by warm-followed-by-cold stratification of nutlets, in a substrate or without any substrate, as well as at 15~25° or 20~30°C, i.e. with a cyclically alternating warm stage (16+8 hrs or 24+24 hrs/cycle) lasting 16–20 weeks, followed by the cold stage at 3°C lasting ca. 20 weeks, i.e. till the appearance of the first germinating seeds. After stratification, emergence rate is equally high (ca 76%) at cyclically alternating temperatures of 3~15°C or 3~20°C (16+8 hrs). Chemical scarification of nutlets in 96% sulphuric acid for 2 hrs, followed by warm-cold stratification at 20~30°/3°C, with a short, 4-weeks warm stage, also ensures a high emergence rate (85–93%). Seed desiccation (in nutlets) slowly to moisture content of 12–14%, after stratification in a substrate or scarification does not reduce the seedling emergence of seeds. Emergence decreased when seeds were desiccated after stratification without any substrate. Results provide new methods of breaking of dormancy and high germination and emergence of hard-coated Crataegus seeds in controlled conditions.

Źródło:

Dendrobiology; 2008, 60; 51-56
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 73.

Tytuł:

Experimental and Performance Analyses with Frequently Discrete Usage of the Hot Storage Tanks

Autorzy:

Qandil, Ahmed
Al Rababa’a, Khalid
Aljabarin, Nader
Al Ganem, Zaid Abu
Abdullah, Rasheed

Powiązania:

https://bibliotekanauki.pl/articles/123418.pdf

Data publikacji:

2019

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

storage tank
discrete usage
stratification
thermocline thickness
mix number
heat transfer
usable energy

Opis:

Hot water storage tanks are devices with high energy consumption, used widely in residential, industrial and commercial sectors. The hot storage tank is a key device in numerous applications such as electrical heaters, solar thermal storage, solar electrical energy production and many others. Its superior technology is favorable for the designers and has a great impact on the market competition. Hot water storage tanks were studied under continuous usage feature, for different inlet types, flow rates, thermal stratification in static and dynamic modes, both experimentally and numerically. The real discrete usage feature has not been analyzed in a proper way. In this study, the experimental and performance analyses with frequent discrete usage of the hot storage tank were performed. Different flow rates of 3, 6, and 9 l/min with 5, 10 and 20 min discrete usage waiting periods were studied. It was found that the thermocline thickness and mixing number increases for both increasing the flow rate due the increment in turbulent mixing potential and increasing the waiting period due to the increase in heat transfer time available between the hot and cold layers. The real data was drawn as is to permit further analyses and data comparison to other researchers. The effect of waiting periods can be used in solar HST to maximize the efficiency of solar collectors as the solar collector efficiency is high at low temperatures.

Źródło:

Journal of Ecological Engineering; 2019, 20, 1; 52-60
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 74.

Tytuł:

Paradygmaty i teorie w naukach o człowieku. Pytania realisty krytycznego
Paradigms and theories in the human sciences. Questions of a critical realist

Autorzy:

Wielecki, Krzysztof

Powiązania:

https://bibliotekanauki.pl/articles/28868437.pdf

Data publikacji:

2023-06-30

Wydawca:

Towarzystwo Wiedzy Powszechnej w Szczecinie

Tematy:

realizm krytyczny
teoria
nauki społeczne
rozwarstwienie paradygmatyczne
critical realism
theory
social sciences
paradigmatic stratification

Opis:

Czy w naukach o człowieku, a w szczególności interesuje mnie tutaj socjologia, można mówić w ogóle o teorii? Czy to, co tu się uprawia pod tą nazwą, zasługuje na tak wymagające określenie? Przynajmniej gdy oceniać to z perspektywy logiki, epistemologii i metodologii nauk? Analiza głównych tradycji rozumienia teorii, zwłaszcza w należących do humanistyki naukach społecznych, jest tu podstawą próby porządkowania współczesnego chaosu w tej dziedzinie. Pytanie to jest tym bardziej istotne, iż – najłagodniej rzecz ujmując – możemy dziś mówić o poważnym rozwarstwieniu paradygmatycznym. Wydawałoby się, iż stan taki wymaga powrotu humanistyki, a w szczególności nauk społecznych do korzeni filozoficznych, aby raz jeszcze przemyśleć status ontyczny i epistemiczny przedmiotu badań tych nauk. Twierdzę bowiem, iż teorie w naukach nas tu interesujących, również te najmniej ogólne, a nawet zwykła praktyka badawcza o charakterze empirycznym, zawsze wymagają refleksji fundamentalnej: ontologicznej i epistemologicznej. W czasach rozwarstwienia paradygmatycznego – w szczególności. Kłopot jednak w tym, iż zwracając się w stronę filozofii, niekoniecznie uzyska się taką pomoc, jakiej nauki o człowieku mogłyby oczekiwać. Od filozofów najprędzej dowiedzieć się możemy, iż nauki humanistyczne, ze społecznymi włącznie, nie są wystarczająco dojrzałe, sformalizowane, ewentualnie skwantyfikowane, aby z przywileju nazywania teorią ich ogólne dywagacje mogły korzystać. Stawia to socjologię i nauki jej pokrewne w sytuacji pata. Jedyna droga teoretycznego ich umocnienia wiedzie przez filozofię. Nie można wszakże wyobrazić sobie innego mostu między nimi a królową nauk niż teorie społeczne właśnie. Ale most ten wydaje się być nieprzejezdny. A w każdym razie – przeprawa jest, podobno, nielegalna. Otóż nie wierzę w to. Myślę, iż humaniści, w tym socjolodzy, muszą – jak ongiś – być dobrze wykształceni w filozofii i w dialogu z filozofami szukać własnej osobliwości ontycznej i epistemologicznej. A stąd wyniknie – jak mniemam – koncept właściwej tym naukom teorii. Uzasadniam też przypuszczenie, iż rama poznawcza realizmu krytycznego może dawać sensowną perspektywę w tej sprawie naukom społecznym.
Is it possible to talk about theory in the human sciences, and in particular in sociology? Does what is grown here under this name deserve such a demanding term? At least when judged from the perspective of logic, epistemology and methodology of science? The analysis of the main traditions of understanding theory, especially in the social sciences belonging to the humanities, is the basis for an attempt to organize the contemporary chaos in this field. This question is even more important because – to put it mildly – we can talk about a serious paradigmatic stratification today. It would seem that such a state requires the humanities, and in particular the social sciences, to return to their philosophical roots in order to rethink the ontic and epistemic status of the subject of research in these sciences. I claim that the theories in the sciences of interest to us here, including the least general ones, and even ordinary research practice of an empirical nature, always require fundamental reflection: ontological and epistemological. In times of paradigmatic stratification – especially. The trouble, however, is that by turning to philosophy, you will not necessarily get the kind of help that the human sciences might expect. We can quickly learn from philosophers that the humanities, including the social sciences, are not sufficiently mature, formalized or quantified to allow their general digressions to benefit from the privilege of calling them a theory. This puts sociology and its related sciences in a stalemate. The only way to strengthen them theoretically is through philosophy. However, it is impossible to imagine any other bridge between them and the queen of sciences than social theories. But this bridge seems to be impassable. In any case, the crossing is supposedly illegal. Well, I don’t believe it. I think that humanists, including sociologists, must – as in the past – be well educated in philosophy and look for their own ontic and epistemological peculiarity in dialogue with philosophers. And from here will result – as I suppose – the concept of a theory proper to these sciences. I also justify the supposition that the cognitive framework of critical realism may provide a sensible perspective on this matter for the social sciences.

Źródło:

Polish Journal of Critical Realism; 2023, 1, 1; 51-70
2956-7750
2956-7769

Pojawia się w:

Polish Journal of Critical Realism

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 75.

Tytuł:

Stratification of particulate organic carbon and nitrogen in the Gdańsk Deep (Southern Baltic Sea)

Autorzy:

Burska, D.
Pryputniewicz, D.
Falkowska, L.

Powiązania:

https://bibliotekanauki.pl/articles/47610.pdf

Data publikacji:

2005

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

stratification
Gdansk Deep
nitrogen
particulate organic carbon
carbon
particulate organic nitrogen
flux
Baltic Sea

Opis:

Particulate organic carbon (POC) and nitrogen (PON) concentrations and fluxes were measured during an experiment in the Gdańsk Deep in late spring (30.05. –06.06.2001). The vertical POC and PON concentration profiles were characterised by the highest values in the euphotic layer,a gradual decrease with depth, and an increase below the halocline. The hydrophysical conditions had a decisive impact on POC and PON fluxes in the water column. Preferential removal of nitrogen from suspended mater was observed in the entire water column (maximum – in the vicinity of thermocline). There were also differences in the diurnal effectiveness of nitrogen removal as compared to carbon removal. The removal rate was highest at night.

Źródło:

Oceanologia; 2005, 47, 2
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 76.

Tytuł:

Regional diversity in the socio-economic situation of Poland’s rural population in the period 1967-2001, assessed by anthropological methods

Autorzy:

Łaska-Mierzejewska, Teresa
Olszewska, Elżbieta

Powiązania:

https://bibliotekanauki.pl/articles/2036164.pdf

Data publikacji:

2013-10-10

Wydawca:

Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych

Tematy:

Regions of Poland
rural girls
social stratification
economic crisis
age at menarche
body height

Opis:

The analysis covered girls, aged 9-18, from farmer, farmer-worker and non-farmer rural families inhabiting 4 regions of Poland. Additionally, parents’ education, number of children per family and the wealth of the family were recorded. The aim of the study was to assess the impact of social stratification of the rural population, the economic crisis (1978-1989) and political and economic transition (1989) on the girls’ biological maturation. Age at menarche and body height were used as biological measures of living conditions. In the period 1967-1977 a marked acceleration in maturation and a significant increase in average body height were noted. The study repeated in 1987 demonstrated negative effects of the economic crisis (1977-1989). Research findings from 2001, after the political system transformation, provide evidence ‘compensating for losses’ recorded in girls’ biological condition during the crisis. The diversity of biogeographic and socioeconomic conditions of rural inhabitants in the studied regions is reflected in a marked diversification in age of menarche and body height.

Źródło:

Miscellanea Geographica. Regional Studies on Development; 2013, 17, 3; 26-32
0867-6046
2084-6118

Pojawia się w:

Miscellanea Geographica. Regional Studies on Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 77.

Tytuł:

Poza wiedzą i majątkiem: nierówności w kapitale społecznym w okresie transformacji systemowej
Besides Knowledge and Wealth: Inequality in Social Capital During the Transformation (in Poland)

Autorzy:

Sadowski, Ireneusz

Powiązania:

https://bibliotekanauki.pl/articles/428037.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

social capital
social networks
stratification
inequality
transformation
kapitał społeczny
sieci społeczne
stratyfikacja
nierówności
transformacja

Opis:

The article discusses the significance of social capital in Poland during the system transformation from the point of view of stratification. In the first part the theoretical and methodological issues are explored, in particular the neocapital perspective represented mainly by Nan Lin, as well as the problem of operationalizing the concept of social capital. Further, the results of analyses based on two waves of research on the lives of “transformation generation”, meaning the 18-year-olds of 1989, are presented. The differentiation of this cohort in terms of number of social contacts possessed by its members is significant, which from the neocapital perspective makes it one of significant factors of inequality. Moreover, the results of analyses give grounds to the conclusion that social networks play an important role in professional careers and in psychological functioning of individuals. One basic objection against the stratification significance of social capital is the fact that its “etiology” is better accounted for by the “repeated path” hypothesis than by simple inheriting.
Artykuł dotyczy stratyfikacyjnego znaczenia kapitału społecznego w Polsce w czasie transformacji systemowej. W pierwszej części omówione zostały kwestie teoretyczne i metodologiczne, w szczególności perspektywa neokapitałowa reprezentowana przez Nana Lina, jak również zagadnienie operacjonalizacji pojęcia kapitał społeczny. W dalszej części przedstawione są wyniki analiz przeprowadzonych na podstawie dwóch fal badania nad losami „pokolenia transformacji”, czyli osiemnastolatków z roku 1989. Istniejące w tej kohorcie zróżnicowanie pod względem bogactwa posiadanych kontaktów społecznych jest dość znaczące, co w perspektywie neokapitałowej czyniłoby je jednym z istotnych wymiarów nierówności. Co więcej, rezultaty analiz dają przesłanki do twierdzenia o daleko idącej roli sieci społecznych dla przebiegu karier zawodowych, jak również dla psychologicznego funkcjonowania jednostek. Podstawowym zastrzeżeniem, dotyczącym stratyfikacyjnego znaczenia kapitału społecznego jest fakt, że jego „etiologię” lepiej tłumaczy hipoteza „powtórzonej ścieżki” niż prostego dziedziczenia.

Źródło:

Studia Socjologiczne; 2012, 2(205); 101-127
0039-3371

Pojawia się w:

Studia Socjologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 78.

Tytuł:

Wspólnota semantyczno-leksykalna języków europejskich. O monografii: А.А. Кретов, О.М. Воевудская, И.А. Меркулова, В.Т. Титов, Единство Европы по данным лексики (Воронеж: Издательский дом ВГУ, 2016, ss. 413 [1])
Semantic and lexical unity of European languages. About the monograph: The Unity of Europe in the Light of Lexis by А.А. Kretov, О.М. Voevudskaya, I.А. Merkulova, V.Т. Titov (Voronezh: VSU, 2016. 413 p. [1])

Autorzy:

Wojan, Katarzyna

Powiązania:

https://bibliotekanauki.pl/articles/481839.pdf

Data publikacji:

2018-06-30

Wydawca:

Uniwersytet Warmińsko-Mazurski w Olsztynie

Tematy:

European languages
lexicology
parametrization and stratification of lexis
semantic unity
semantic and lexical macrotype

Opis:

This article outlines the original research concept developed and applied by the Voronezh researchers, which brought both quantitative and qualitative results to the field of linguistic comparative research. Their monograph is devoted to the macrotypological unity of the lexical semantics of the languages in Europe. In addition, semantic stratification of Russian and Polish lexis has been analyzed. Their research concept is now known as the “lexical-semantic macrotypological school of Voronezh.” Representatives of this school have created a new research field in theoretical linguistics – a lexical-semantic language macrotypology as a branch of linguistic typology. The monograph has been widely discussed and reviewed in Russia.

Źródło:

Acta Polono-Ruthenica; 2018, 2, XXIII; 121-133
1427-549X

Pojawia się w:

Acta Polono-Ruthenica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 79.

Tytuł:

Income stratification in Poland
Stratyfikacja dochodowa w Polsce

Autorzy:

Sączewska-Piotrowska, Anna

Powiązania:

https://bibliotekanauki.pl/articles/590336.pdf

Data publikacji:

2018

Wydawca:

Uniwersytet Ekonomiczny w Katowicach

Tematy:

Bogactwo
Nierówność dochodowa
Stratyfikacja dochodowa
Ubóstwo
Zamożność
Affluence
Income inequality
Income stratification
Poverty
Richness

Opis:

Income stratification is one of direct ways of social structure analysis. This stratification is one-dimensional graduation scheme on the “low income – high income” scale. This method allows to assess the share of affluent and poor groups in the whole society and to assess the changes in the structure of society through the prism of income. In this study, the division of households into seven income groups, according to relative approach was used. To divide the studied period 2000-2015 into sub-periods with similar income structures the taxonomic algorithm was used. According to this algorithm, the studied period was divided into four sub-periods.
Stratyfikacja dochodowa jest jednym z bezpośrednich sposobów analizowania struktury społeczeństwa. Ten rodzaj stratyfikacji to jednowymiarowy system oceniania na skali „niski dochód – wysoki dochód”. Metoda ta pozwala ocenić udział zamożnych i biednych grup w ogóle społeczeństwa oraz zmiany zachodzące w strukturze społeczeństwa przez pryzmat dochodów. W przeprowadzonym badaniu zastosowano podział gospodarstw domowych na siedem grup dochodowych, stosując podejście relatywne. W celu podzielenia badanego okresu 2000-2015 na podokresy cechujące się podobnymi strukturami dochodów zastosowano algorytm taksonomiczny. Zgodnie z zastosowanym algorytmem badany okres podzielono na cztery podokresy.

Źródło:

Studia Ekonomiczne; 2018, 373; 42-53
2083-8611

Pojawia się w:

Studia Ekonomiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 80.

Tytuł:

Remembrance, Identity Politics and Political Transitions: a Comparative Study

Autorzy:

Marszałek-Kawa, Joanna
Wawrzyński, Patryk

Powiązania:

https://bibliotekanauki.pl/articles/594917.pdf

Data publikacji:

2016

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

democratisation
transformations
collective memory
remembrance policy
new elites
transitional justice
social stratification
symbolic roles

Opis:

The paper presents findings of the comparative study on relationships between remembrance story-telling and the transitional reconstruction of political identities. It identifies in which areas and fields of impact governments tend to use interpretations of the past to promote new leadership visions of society. Moreover, it verifies theoretical hypotheses related to the politicised remembrance and its role as a political asset during transformations, as well as it considers the theoretical framework of democracy-building (and a common prediction of its universal character). As a result, the study offers a detailed picture of the way remembrance narratives are transformed into explanations, justifications or legitimisation of new, post-authoritarian identities based on qualitative-to-quantitative analysis of the intensity of story-telling and its links with transitional identity politics. In the conclusion, the Authors present their consideration of research findings, and they discuss it with reference to the nature of transitional government’s remembrance policy as a sphere of social influence.

Źródło:

Polish Political Science Yearbook; 2016, 45; 11-21
0208-7375

Pojawia się w:

Polish Political Science Yearbook

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 81.

Tytuł:

Wykształcenie rodziców a kierunki studiów ich dzieci
The impact of parents’ education on fields studied by their children

Autorzy:

Zawistowska, Alicja

Powiązania:

https://bibliotekanauki.pl/articles/1195097.pdf

Data publikacji:

2009-01-01

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

educational inequalities
tertiary education
stratification
educational selections
nierówności edukacyjne
szkolnictwo wyższe
stratyfikacja
selekcje edukacyjne

Opis:

Celem artykułu jest próba odpowiedzi na dwa pytania dotyczące nierówności na wyższym szczeblu edukacji. Pierwsze dotyczy wpływu pochodzenia społecznego na wybór kierunku studiów, drugie - selekcji między kierunkami ze względu na płeć. Dotychczasowe badania wykazały, że istnieje wyraźny związek między pochodzeniem społecznym a wyborem kierunku studiów. Osoby mające lepiej wykształconych rodziców częściej studiują na kierunkach prestiżowych, takich jak prawo czy medycyna. Wskazuje się również, że kobiety chętniej wybierają kierunki humanistyczne i społeczne, a mężczyźni kierunki techniczne. Czy w sytuacji szybkiego wzrostu liczby studentów, obserwowanego w Polsce od lat dziewięćdziesiątych XX w., te prawidłowości będą się utrzymywały? Wyniki sondażu przeprowadzonego na trzech państwowych uczelniach w Białymstoku w 2008 r. pokazują, że na wybory studentów nadal wpływają zarówno pochodzenie społeczne, jak i płeć. Zaobserwowano również związek między wyborem kierunku studiów a generalną skłonnością do podejmowania ryzyka. Autorka interpretuje wyniki tych badań w kategoriach teorii konfliktowej (monopolizacji), teorii kapitału kulturowego i teorii racjonalnego wyboru.
The paper aims to answer two questions concerning inequalities at the tertiary level of education. Firstly, the impact of social background on the choices of fields studies, and, secondly, the gender-driven selection of fields of study. Research conducted to date has shown a visible relationship between one’s social background and the selection of academic disciplines studied. Individuals who have better-educated parents are more likely to study prestigious fields such as law or medicine. It has also been claimed that women are more likely to choose studies in humanities and social Sciences whereas men favour technical studies. Will these trends continue to exist given the rapid increase in the number of tertiary-level students in Poland sińce 1990s? The results of a survey conducted in three public universities in Białystok in 2008 have shown that students’ choices are driven by both their social background and gender. Also, a relationship has been identified between the choices of fields of study and the overall propensity to take risks. The author interprets the results of the survey building on the theory of cultural Capital, theory of monopolisation and rational choice.

Źródło:

Nauka i Szkolnictwo Wyższe; 2009, 1, 33; 91-112
1231-0298

Pojawia się w:

Nauka i Szkolnictwo Wyższe

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 82.

Tytuł:

Stratification conditions determining seed dormancy release of European bladder nut [Staphylea pinnata L.]

Autorzy:

Tylkowski, T

Powiązania:

https://bibliotekanauki.pl/articles/57767.pdf

Data publikacji:

2007

Wydawca:

Polskie Towarzystwo Botaniczne

Tematy:

Staphylea pinnata
stratification condition
botany
sowing pretreatment
European bladder nut
germination
seed dormancy
shrub

Opis:

European bladder nut has its northern limit in Poland and is legally protected. Climatic conditions, edible seeds attractive for small animals and seed dormancy to a large extent affect its restocking under natural conditions. The aim of this study was to determine conditions for seed dormancy release. Nuts dried after collection to ca 11% of moisture content (fresh weight basis) may be stored without loss of seed viability for over 1 year in a cold store at the temperature of -3oC. For the purpose of seed dormancy release nuts need to be stratified. Seed dormancy release was found highest after the application of warm-followed-by-cold stratification, first for 4-6 weeks at the temperature of 15oC or at cyclically alternating temperature of 10~20oC (24+24 h/cycle), followed by 16-18 weeks at 3oC. Seeds germinate at 3oC with the same rate as at cyclically alternating temperature of 3~15oC (16+8 h/day). Drying of nuts at room temperature to approx. 11% during the warm stratification phase (after 2 or 4 weeks) and further stratification resulted in a significant increase in seed germinability. In some seed lots scarification of nuts (dried during the warm stratification phase) contributes to a further significant increase of seed germinability.

Źródło:

Acta Societatis Botanicorum Poloniae; 2007, 76, 2
0001-6977
2083-9480

Pojawia się w:

Acta Societatis Botanicorum Poloniae

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 83.

Tytuł:

Diurnal variations in nitrogen, phosphorus and iron compounds in the Southern Baltic Sea

Autorzy:

Sikorowicz, G.
Falkowska, L.
Burska, D.
Dunajska, D.
Pryputniewicz, D.
Magulski, R.
Lewandowska, A.

Powiązania:

https://bibliotekanauki.pl/articles/47649.pdf

Data publikacji:

2005

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

iron
nutrient
Gdansk Deep
nitrogen
density stratification
diurnal variation
Baltic Sea
oxygen condition
phosphorus

Opis:

In order to assess their short-term variability, nutrient concentrations were measured at standard depths at 2 h intervals in the deepest region of the Gdańsk Deep during the first ten days of June 2001. The mean concentrations of nutrients in the euphotic zone were: NN (NO2 −, NO3 −, NH4 +) – 1.93 μmol dm−3, PO4 3− – 0.12 μmol dm−3 and Fetot – 0.11 μmol dm−3. During daylight hours, when the rate of assimilation was fastest, concentrations of nitrogen, phosphorus and iron compounds were very low. The phosphate concentration fell to a minimum (0.03 μmol dm−3) between 04:00 and 10:00 hrs, while total iron dropped to 0.01 μmol dm−3 between 10:00 and 16:00 hrs. Both levels were below the limiting values for phosphorus and iron. At night, concentrations of NO3 − and PO4 3− rose by 25%, those of NH4 + and Fetot by 35%. The mean molar ratios of NN:PO4 3− and Fetot:PO4 3− in the surface layer were subject to significant daily fluctuations. The molar NN:PO4 3− ratio was higher than the optimum value established for the Baltic Sea. Below the halocline, the concentrations of dissolved iron and phosphorus rose as a result of diffusion from sediments in response to changing redox conditions.

Źródło:

Oceanologia; 2005, 47, 2
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 84.

Tytuł:

Effects of dormancy breaking in stored seeds on germinability and seedling emergence of Tilia platyphyllos

Autorzy:

Tylkowski, T

Powiązania:

https://bibliotekanauki.pl/articles/41170.pdf

Data publikacji:

2006

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

dormancy breaking
seed
stored seed
germinability
seedling emergence
Tilia platyphyllos
scarification
stratification
seed viability

Opis:

Fruits of large-leaved lime dried to 10% may be stored for 16 years in sealed containers at –3°C without loosing seed viability. Dormancy of seeds, extracted from hard fruit coats, may be released after chemical scarification in concentrated sulphuric acid for 10 minutes, followed-by stratification without any medium (chilling) at the temperature of 3°C, for 20–24 weeks, i.e. until the first seeds start to germinate. After such pretreatment, during the germination test conducted at alternating temperatures 3~15°C (16 + 8 hours/day) seeds germinate near 90% in several weeks. For seedling production scarified and stratified seeds should be sown in early spring into trays under a plastic tunnel which ensures a high percentage of seedlings emergence. Sowing of the pretreated seeds in spring in a open nursery gives poor results.

Źródło:

Dendrobiology; 2006, 56; 79-84
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 85.

Tytuł:

Testyzowanie edukacji i jego efekty
Testizing Education and Its Outcomes

Autorzy:

Remisiewicz, Łukasz

Powiązania:

https://bibliotekanauki.pl/articles/427697.pdf

Data publikacji:

2019

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

socjalizacja
selekcja
egzaminy
stratyfikacja edukacyjna
nierówności w edukacji
socialization
selection
examinations
educational stratification
educational inequalities

Opis:

W niniejszym eseju autor proponuje reteoretyzację głównych idei zawartych w książce „Testy edukacyjne. Studium dynamiki selekcji i socjalizacji” (2017) autorstwa Agnieszki Gromkowskiej-Melosik. Z przykładów szczegółowo opisanych w książce, autor wyodrębnia uniwersalne wzorce zmian społecznych spowodowanych wprowadzeniem testów edukacyjnych, w ramach których podmioty uwikłane na różnych poziomach w testy edukacyjne reorientują swoje zachowania. Wszystkie te zmiany nazywane są testyzacją. Testyzacja składa się z trzech elementów: testokracji (poziom makrospołeczny), testolatrii (poziom przekonań kulturowych) i uczenia pod testy (poziom mikrospołeczny). Testokracja jako „rządy testów” polega na wykorzystaniu systemów abstrakcyjnych jako narzędzia selekcji. Testokracja jako „zarządzanie poprzez testy” polega na porównawczym ocenianiu stanu systemów edukacji na świecie. Testolatria obejmuje zespół przekonań kulturowych odnoszących się do obiektywności i niezależności testów. Przekonania te zapewniają stabilny i społecznie uprawomocniony porządek testowania. Wreszcie, uczenie pod testy modyfikuje techniki przekazywania i przyswajania wiedzy, przypisując wyższe wartości tym, które z większym prawdopodobieństwem poprawiają wyniki testu.
In the essay, the author offers to re-theorize the main ideas of the book Testy edukacyjne. Studium dynamiki selekcji i socjalizacji [Educational Tests. The Study in the Dynamics of the Selection and Socialization] (2017) by Agnieszka Gromkowska-Melosik. Using the examples meticulously described in the book, the author isolates the universal patterns of social changes affected by educational testing whereby the agents involved in the testing at various levels reorient their behaviour. These changes are called testization and are seen to unfold at three levels: testocracy (macro-social level), testolatry (cultural values level) and teaching to the test (micro-social level). Testocracy understood as „governing through tests” is the use of abstract systems as a selection tool. Testocracy understood as „managing through tests” allows for comparative evaluation of educational systems worldwide. Testolatry refers to the cultural beliefs about objectivity and independence of tests. These beliefs secure a stable and socially legitimized order of testing. Finally, teaching to the test modifies the techniques of knowledge transmission and ascribes a higher value to such techniques that are more likely to improve test results.

Źródło:

Studia Socjologiczne; 2019, 2(233); 205-233
0039-3371

Pojawia się w:

Studia Socjologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 86.

Tytuł:

Zastosowanie stratyfikacji w inwentaryzacji lasów różnowiekowych
Use of a stratification method in uneven-aged stands

Autorzy:

Banaś, J.

Powiązania:

https://bibliotekanauki.pl/articles/1022661.pdf

Data publikacji:

2005

Wydawca:

Polskie Towarzystwo Leśne

Tematy:

fazy rozwojowe
stratyfikacja drzewostanow
drzewostany roznowiekowe
lesnictwo
inwentaryzacja lasu
forest inventory
stratification
stand developmental phase

Opis:

The paper presents a posteriori stratification method which was used in inventorying uneven−aged stands in an area of 727.70 hectares in the Forest Experimental Station in Krynica. The average growing stock amounting to 291 m3·ha−1 was calculated with the error of 1.6%. Volume increment at the level of 9.39 m3·ha−1 per year was calculated with a similar accuracy as the growing stock. The loss volume of 5.33 m3·ha−1 and ingrowth volume 0.73 m3·ha−1 per year was determined with the error slightly above 5%.

Źródło:

Sylwan; 2005, 149, 12; 30-36
0039-7660

Pojawia się w:

Sylwan

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 87.

Tytuł:

Wpływ przynależności klasowej na postawy wyborcze w latach 1991–2001
The Impact of Class Identity on Electoral Choices in 1991–2001

Autorzy:

Domański, H.

Powiązania:

https://bibliotekanauki.pl/articles/2137339.pdf

Data publikacji:

2006

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

class voting
social stratification
post−communism
death of classes
preferencje wyborcze
przynależność klasowa
zanikanie klas

Opis:

In contemporary Central and Eastern Europe, the debate on class politics takes on a different form to that in the West - it concerns whether class divisions increase as the post-communist societies undergo transition to the market system. Using Polish survey data, containing information on respondents voting behavior in elections of 1991, 1994, 1997, and 2001, the autor presents evidence on significance of social class on voting behavior. Results of log-linear analysis show that class membership does indeed exert a significant impact on voting behavior. Although it changed across the time, in 2001 it appeared no less significant than in 1991. Also the patterns of this association remained unchanged. On the whole our evidence suggests that in Poland a new dimension of social stratification known as in sociological literature 'class politics' - has emerged. At the same time, claims of the class basis of voting in Poland cannot be exaggerated. The evidence presented here clearly indicates that the class-vote link in Poland is much lower compared with most of Western societies. Data from 17 countries found in allows to compare relative strength of this association European Social Survey 2002.
Celem tej analizy jest ustalenie, jak zmieniał się wpływ przynależności klasowej na postawy wyborcze w Polsce w latach 1991–2001. Opierając się na danych Polskiego Generalnego Sondażu Społecznego porównuję wpływ przynależności do podstawowych segmentów struktury społecznej na deklaracje respondentów, dotyczące głosowania na partie polityczne w wyborach parlamentarnych z 1991, 1993, 1997 i 2001 roku. Wyniki analizy wskazują, że: (i) w rozpatrywanym przedziale czasowym zależność ta była znacząca, (ii) ulegała istotnym zmianom, przy czym zmiany te nie postępowały w jednym kierunku, (iii) zmianom w sile związku towarzyszył brak zmian preferencji wyborczych ze strony reprezentantów analizowanych segmentów klasowych. W ostatniej części porównuję siłę tej zależności w 17 krajach na podstawie danych Europejskiego Sondażu Społecznego z 2002 roku. Polska okazuje się krajem, w którym przynależność klasowa wywiera relatywnie mały wpływ na postawy wyborcze. Ustalenia te można traktować jako przyczynek do prowadzonej od kilkudziesięciu lat dyskusji na temat zanikania struktury klasowej. Wynik dla Polski dostarcza pewnego argumentu na rzecz tezy, że klasy istnieją, chociaż – biorąc pod uwagę krótkość analizowanego okresu – trudno go potraktować jako argument wiążący.

Źródło:

Studia Socjologiczne; 2006, 4(183); 7-37
0039-3371

Pojawia się w:

Studia Socjologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 88.

Tytuł:

Stability and Change in Household Computer Possession in Poland: Analysis of Structural Determinants

Autorzy:

Green, Brian E.
Kryszczuk, Maciej D.

Powiązania:

https://bibliotekanauki.pl/articles/1929382.pdf

Data publikacji:

2006-06-30

Wydawca:

Polskie Towarzystwo Socjologiczne

Tematy:

informational society
personal computers
internet
digital divide
informatization
social change
occupational structure
social stratification
structural determinants

Opis:

This article expresses the results from a set of analyses that had the following goals: 1) to describe the nature and process of informatization in Poland from 1988 to 2003; 2) to understand the factors that contribute to the digital divide in Poland; and 3) to contribute to the theoretical discourses on social dynamics and modernization. Studying the development of information and communication technologies (ICTs) in Poland is useful for both theoretical and methodological reasons. In 1989 the penetration of digital technology was low, however in 15 years since then, informatization has progressed to the point where it is on par with the rest of Western Europe and North America. This provides a good opportunity for examining the factors associated with the digital divide. Furthermore, as Poland developed intensely over a short period of time, it is likely to demonstrate a pattern similar to those countries which will go through the digital revolution in coming decades.

Źródło:

Polish Sociological Review; 2006, 154, 2; 243-256
1231-1413
2657-4276

Pojawia się w:

Polish Sociological Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 89.

Tytuł:

Computerization of Polish Households in Social Structural Perspective: a Dynamic Analysis of the Informatization Process over 20 years

Autorzy:

Green, Brian E.
Kryszczuk, Maciej D.

Powiązania:

https://bibliotekanauki.pl/articles/1929585.pdf

Data publikacji:

2010-01-05

Wydawca:

Polskie Towarzystwo Socjologiczne

Tematy:

informational society
personal computers
internet
digital divide
informatization
social
change
occupational structure
social stratification
structural determinants

Opis:

This article, as a continuation of our previous paper Stability and Change in Household Computer Possession in Poland: Analysis of Structural Determinants, expresses the results from a set of analyses that had the following goals: 1) to describe the nature and process of informatization in Poland from 1988 to 2008; 2) to understand the factors that contribute to the digital divide in Poland; and 3) to contribute to the theoretical discourses on social dynamics and modernization. Studying the development of information and communication technologies (ICTs) in Poland is useful for both theoretical and methodological reasons. In 1988 the penetration of digital technology was low, however in 20 years since then, informatization has progressed to the point where it is on par with the rest of Western Europe and North America. This provides a good opportunity for examining the factors associated with the digital divide. Furthermore, as Poland developed intensely over a short period of time, it is likely to demonstrate a pattern similar to those countries which will go through the digital revolution in coming decades.

Źródło:

Polish Sociological Review; 2010, 168, 4; 595-606
1231-1413
2657-4276

Pojawia się w:

Polish Sociological Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 90.

Tytuł:

От социологии к оценке

Autorzy:

Фролова, Ольга

Powiązania:

https://bibliotekanauki.pl/articles/1023155.pdf

Data publikacji:

2019-09-05

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

social stratification
social stratum
figurative meaning
metaphor
evaluation
ambivalence
connotation
Russian national corpus
democratization
image perception

Opis:

The article deals with figurative meanings of nominations of the social hierarchy relating to the upper, middle and lower strata of Russian society of the 18th and 19th centuries, and their reflection in the explanatory dictionary of the beginning of the 21st century. The use of adjectives, formed from personal nouns in the Russian National Corpus in the period 2000–2017, is analyzed.

Źródło:

Studia Rossica Posnaniensia; 2019, 44, 2; 261-270
0081-6884

Pojawia się w:

Studia Rossica Posnaniensia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 91.

Tytuł:

Impact of a Thermocline on Water Dynamics in Reservoirs – Dobczyce Reservoir Case

Autorzy:

Hachaj, P. S.
Szlapa, M.

Powiązania:

https://bibliotekanauki.pl/articles/140137.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

storage reservoir
water dynamics
numerical simulation
thermocline
stratification
zbiornik retencyjny
dynamika wody
symulacja numeryczna
termoklina
uwarstwienie

Opis:

While modeling water dynamics in dam reservoirs, it is usually assumed that the flow involves the whole water body. It is true for shallow reservoirs (up to several meters of depth) but may be false for deeper ones. The possible presence of a thermocline creates an inactive bottom layer that does not move, causing all the discharge to be carried by the upper strata. This study compares the results of hydrodydynamic simulations performed for the whole reservoir to the ones carried out for the upper strata only. The validity of a non-stratified flow approximation is then discussed.

Źródło:

Archive of Mechanical Engineering; 2017, LXIV, 2; 189-203
0004-0738

Pojawia się w:

Archive of Mechanical Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 92.

Tytuł:

Experimental and Theoretical Studies of Heat Losses from the Hot Water Storage Tank
Badania eksperymentalne i teoretyczne strat ciepła zasobnika ciepłej wody

Autorzy:

Dopieralska, K.
Siuta-Olcha, A.
Cholewa, T.
Studzińska, M.

Powiązania:

https://bibliotekanauki.pl/articles/1818096.pdf

Data publikacji:

2016

Wydawca:

Politechnika Koszalińska. Wydawnictwo Uczelniane

Tematy:

heat loss coefficient
hot water tank
thermal stratification
współczynnik strat ciepła
zbiornik ciepłej wody
stratyfikacja termiczna

Opis:

Efektywność magazynowania ciepła ma wpływ na efektywność energetyczną instalacji ciepłej wody. Do jej zwiększenia przyczynia się utrzymanie rozwarstwienia termicznego w zasobniku ciepłej wody. Zaburzenie stratyfikacji termicznej może być spowodowane między innymi stratami ciepła ze zbiornika do otoczenia. W pracy przedstawiono dynamikę zmian temperatury wody w zasobniku o pojemności 350 dm3, podczas jego wychładzania w godzinach nocnych, na podstawie przeprowadzonych pomiarów temperatury wody magazynowanej na 15 wyróżnionych poziomach. Dla zasobnika obliczono współczynniki strat ciepła dla części górnej, bocznej oraz dolnej, jak również dla całego zasobnika. Uzyskane wyniki odniesiono do wyników badań innych autorów.

Źródło:

Rocznik Ochrona Środowiska; 2016, Tom 18, cz. 2; 758-769
1506-218X

Pojawia się w:

Rocznik Ochrona Środowiska

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 93.

Tytuł:

Social Dimension of New Technologies in Border Control: An International Relations Perspective
Społeczny wymiar zastosowania nowoczesnych technologii kontroli osób na granicach państw z perspektywy stosunków międzynarodowych

Autorzy:

Moraczewska, Anna

Powiązania:

https://bibliotekanauki.pl/articles/1943975.pdf

Data publikacji:

2016-12-31

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

automated border control
social effects
digital divide
stratification
zautomatyzowana kontrola graniczna
skutki społeczne
cyfrowy podział
stratyfikacja

Opis:

The contemporary border crossing is said to have become progressively more automated and faster. Automated devices and surveillance systems in border control generally are to enhance security of the state. However, this perception of innovations in border control represents more of a developed countries’ perspective than a universal rule. An acceleration of technological development maintains or deepens inequalities between countries, regions, societies or generations and the change (progress) does not occur worldwide and does not apply to all societies. This paper presents different systems of border control using new technologies and their consequences in social and human dimension. A transition of state’s border from a physical line to territorially dispersed points, linked with international information and data sharing, is analysed. The impact of the automated border control of travellers on interactions between developed and less or developing countries is on the main interests of the author in this paper.
Kontrola na współczesnych przejściach granicznych jest coraz bardziej zautomatyzowana, a tym samym sprawniejsza. Polega na weryfikowaniu danych obecnych w systemach informacyjnych i pozwalających na zakwalifikowanie podróżującej osoby do grupy ludzi otrzymujących prawo wjazdu lub jego zakaz. Dla państw wysoko rozwiniętych są instrumentem zwiększania bezpieczeństwa swojego terytorium i obywateli oraz ich mobilności. Z punktu widzenia imigrantów napływających z obszarów ekonomicznie zapóźnionych czy politycznie niestabilnych wykorzystywanie elektronicznych baz danych do ich weryfikowania, poprzedzone koniecznością rejestracji przybyszów, a w przypadku jej braku – koniecznością pozostawienia przez nich swoich danych biometrycznych, staje się dużą barierą lub utrudnieniem. Autorka przedstawia zmianę istoty funkcjonowania współczesnej granicy państwa w wyniku digitalizacji danych alfanumerycznych i biometrycznych osób przemieszczających się przez nią oraz skutki tego zjawiska dla społeczeństw w wymiarze międzynarodowym.

Źródło:

Athenaeum. Polskie Studia Politologiczne; 2016, 52; 78-94
1505-2192

Pojawia się w:

Athenaeum. Polskie Studia Politologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 94.

Tytuł:

Zmiany temperatur w akumulatorze ciepła z gorącą wodą
Temperature changes in a hot water accumulator

Autorzy:

Neupauer, K.
Głuszek, A.
Pater, S.
Kupiec, K.

Powiązania:

https://bibliotekanauki.pl/articles/2072405.pdf

Data publikacji:

2013

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

stratyfikacja termiczna
nieustalone przewodzenie ciepła
solame systemy grzewcze
thermal stratification
transient heat conduction
solar heatir systems

Opis:

W pracy przedstawiono model przenoszenia ciepła uwzględniający wyrównywanie temperatur pomiędzy poszczególnymi strefami zbiornika magazynującego ciepło. Przenoszenie ciepła opisano równaniem nieustalonego przewodzenia ciepła w płycie nieskończonej z wewnętrznym źródłem cie¬pła. Na podstawie analizy numerycznej określono profil temperatury wody w funkcji wysokości położenia w zbiorniku i czasu. Otrzymane wyniki porównano z danymi eksperymentalnymi uzyskanymi z instalacji doświadczalnej.
A model of heat transfer which takes into account the temperature equalization between heat storage tank zones is presented. Heat transfer was described using an equation of transient heat conduction in an infinite plate with the internal heat source. On basis of numerical method, the water temperature profile as a function of time and the tank height was determined. The results were compared with the research data obtained in the experimental setup.

Źródło:

Inżynieria i Aparatura Chemiczna; 2013, 4; 359--360
0368-0827

Pojawia się w:

Inżynieria i Aparatura Chemiczna

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 95.

Tytuł:

Darcy-Forchheimer 3D Williamson nanofluid flow with generalized Fourier and Fick’s laws in a stratified medium

Autorzy:

Ramzan, M.
Gul, H.
Zahri, M.

Powiązania:

https://bibliotekanauki.pl/articles/199972.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

Generalized Fourier and Fick’s laws
Darcy-Forchheimer porous medium
Thermal and solutal stratification
Williamson nanofluid

Opis:

Mathematical analysis for 3D Williamson nanofluid flow past a bi-directional stretched surface in Darcy-Forchheimer permeable media constitutes the focus of this study. The novelty of the proposed model is augmented by the addition of thermal and solutal stratification with chemical species and variable thermal conductivity. Calculations of the suggested model are conducted via the renowned homotopy analysis method (HAM). The results obtained are validated by comparing them in a limiting form with an already published article. Excellent harmony is achieved in this regard. Graphical structures, depicting impacts of assorted arising parameters versus the profiles involved are also provided. It is noticed that the velocity profile is a dwindling function of the Williamson parameter and Hartmann number. It is also stated that the Cattaneo-Christov heat flux exhibits conventional Fourier and Fick’s laws behavior when both coefficients of thermal and concentration relaxations are zero.

Źródło:

Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 2; 327-335
0239-7528

Pojawia się w:

Bulletin of the Polish Academy of Sciences. Technical Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 96.

Tytuł:

Hierarchia kultury na tle nierówności ekonomicznych i kapitału społecznego
Stratification of Culture against Economic Inequalities and Social Capital

Autorzy:

Domański, Henryk

Powiązania:

https://bibliotekanauki.pl/articles/33734071.pdf

Data publikacji:

2024

Wydawca:

Katolicki Uniwersytet Lubelski Jana Pawła II

Tematy:

cultural stratification
class position
musical tastes
social origin
hierarchia kultury
pozycja klasowa
gusty muzyczne
pochodzenie społeczne

Opis:

Nierówności w dostępie do kultury są elementem struktury klasowej. Celem tego artykułu jest porównanie ważności tego wymiaru z innymi wyznacznikami hierarchii klasowej. Opierając się na danych pochodzących z badań zrealizowanych w 2019 roku na próbie ogólnopolskiej, próbuję określić znaczenie kultury w porównaniu z nierównościami ekonomicznymi i kapitałem społecznym. Wskaźnikiem uczestniczenia w kulturze są gusty muzyczne, pozycja ekonomiczna mierzona jest wielkością dochodów rodziny a kapitał społeczny – pomocą ze strony znajomych. Wyniki analizy wskazują, że podziały klasowe znajdują silniejsze odzwierciedlenie w nierównościach ekonomicznych niż w stylu życia i kapitale społecznym. Prawidłowości jest również znaczące oddziaływanie pozycji klasowej ojca, co wskazywałoby na międzypokoleniową transmisję tych zjawisk.    
Cultural inequality is one of the constitutive factors of the class structure. This analysis aims to determine the extent to which cultural participation reflects class inequalities in comparison with two other dimensions of the class structure, i.e. economic inequalities and social capital. Cultural participation is measured in terms of musical tastes. Drawing on data from a 2019 research conducted on a representative sample in Poland, I attempt to assess the role of this variable in shaping class structure. The findings show that class distances are better reflected in economic inequalities (family income) than in musical tastes – with a minor role of social capital – which confirms the hypothesis. The same pattern is reflected in the effect of father’s class on family income and cultural capital, which indicates intergenerational transmission of these factors.  

Źródło:

Zeszyty Naukowe KUL; 2024, 67, 1; 61-74
0044-4405
2543-9715

Pojawia się w:

Zeszyty Naukowe KUL

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 97.

Tytuł:

Performance Improvement Procedure of Engineering Students of Bangladesh Applying Total Quality Management: A Review

Autorzy:

Dutta, Abir
Shatu, Ruhul Amin

Powiązania:

https://bibliotekanauki.pl/articles/1165657.pdf

Data publikacji:

2018

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Check Sheet
Kaizen
PDCA cycle etc.
Pareto Analysis
Process flow chart
Root Cause Analysis
Stratification Analysis
TQM

Opis:

The main focus of this paper is to integrate the application of Total Quality Management & Kaizen in improvement of Engineering students. Most Engineering students get depressed when they can’t understand the topics & fail to cut a good figure in the semester final exam as well as there CGPA becomes poor. 80-90% students blame the curriculum & system but it is not easy to change the system rapidly. The irony is, in Bangladesh most of the time is spent to memorize books for good academic performance. The Engineering Education Curriculum is mainly memorizing based. Students have to learn a lot of theory & write them in the exam as given in reference books to get good marks. This system makes students bookish & discourages them from creativity & innovation. The evaluation system in this educational system only represents how much a student spends time for academic studies not the creativity, intelligence, passion & dedication etc. This makes frustrated who are involved in innovative projects, research or contests. Without creativity & innovation it is not possible to advance the science & technology which is the main purpose of Engineering. In this research a structured & detailed process of TQM & Kaizen has been discussed & showed which is suitable to achieve which goal. One is for determining & analyzing problems & another is one of the best process to achieve a satisfactory outcome in academic & professional development process.

Źródło:

World Scientific News; 2018, 107; 216-223
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 98.

Tytuł:

Aesthetics-based classification of geological structures in outcrops for geotourism purposes: a tentative proposal

Autorzy:

Mikhailenko, A. V.
Nazarenko, O. V.
Ruban, D. A.
Zayats, P. P.

Powiązania:

https://bibliotekanauki.pl/articles/94482.pdf

Data publikacji:

2017

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

geological heritage
stratification
fault
fold
epikarst
Western Caucasus
Russia
dziedzictwo geologiczne
warstwowanie
uskok
fałd
zachodni Kaukaz
Rosja

Opis:

The current growth in geotourism requires an urgent development of classifications of geological features on the basis of criteria that are relevant to tourist perceptions. It appears that structure-related patterns are especially attractive for geotourists. Consideration of the main criteria by which tourists judge beauty and observations made in the geodiversity hotspot of the Western Caucasus allow us to propose a tentative aesthetics-based classification of geological structures in outcrops, with two classes and four subclasses. It is possible to distinguish between regular and quasi-regular patterns (i.e., striped and lined and contorted patterns) and irregular and complex patterns (paysage and sculptured patterns). Typical examples of each case are found both in the study area and on a global scale. The application of the proposed classification permits to emphasise features of interest to a broad range of tourists. Aesthetics-based (i.e., non-geological) classifications are necessary to take into account visions and attitudes of visitors.

Źródło:

Geologos; 2017, 23, 1; 45-52
1426-8981
2080-6574

Pojawia się w:

Geologos

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 99.

Tytuł:

Initial investigations of coil heat exchanger utilizing waste heat from air conditioning system
Badania wstępne wężownicowego wymiennika ciepła wykorzystującego ciepło odpadowe z systemu klimatyzacji

Autorzy:

Wilk, J.
Smusz, R.

Powiązania:

https://bibliotekanauki.pl/articles/195199.pdf

Data publikacji:

2017

Wydawca:

Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza

Tematy:

tube coil heat exchanger
thermal-flow characteristics
temperature stratification
wężownicowy wymiennik ciepła
charakterystyki cieplno-przepływowe
stratyfikacja temperatury

Opis:

In this paper the selected results of testing of tube coil heat exchanger have been presented. The investigated heat exchanger is designed to preheating domestic warm water with the use of waste heat from air conditioning system. The tested device consists of finned tube coil heat exchanger immersed in the thermal storage tank. The tank is equipped with three heating coils and the cylindrical-shaped temperature stratification system. Two coils use water as a heating medium. The third, double-wall heat exchanger coil is filled with the refrigerant from the air conditioning system. The industrial stand enables the experimental investigations of thermal and flow characteristics of the exchanger. In the paper the authors present the technological scheme of the test stand, specification of components of the stand, research possibilities and the exemplary results of characteristic temperature and pressure measurements.
W pracy przedstawiono wybrane wyniki badań wężownicowego wymiennika ciepła. Testowane urządzenie jest przeznaczone do podgrzania ciepłej wody użytkowej przy użyciu ciepła odpadowego pochodzącego z systemu klimatyzacji. Badane urządzenie stanowi wymiennik ciepła złożony z użebrowanych wężownic zanurzonych w zbiorniku termicznym. Zbiornik jest wyposażony w trzy wężownice grzejne oraz cylindryczny układ stratyfikacji temperatury. Czynnikiem roboczym w dwóch wężownicach jest woda. Trzeci dwuścienny wężownicowy wymiennik ciepła jest zasilany czynnikiem chłodniczym z układu klimatyzacji. Stanowisko przemysłowe umożliwia przeprowadzenie badań eksperymentalnych charakterystyk cieplno-przepływowych wymiennika. W pracy autorzy przedstawili schemat technologiczny stanowiska badawczego wraz z wykazem i charakterystyką jego poszczególnych elementów. Podano również możliwości badawcze oraz przytoczono przykładowe wyniki pomiarów temperatur i ciśnień charakterystycznych.

Źródło:

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika; 2017, z. 89 [295], 1; 131-138
0209-2689
2300-5211

Pojawia się w:

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 100.

Tytuł:

Wybór znajomego a stratyfikacja społeczna w Polsce w latach 1988–2008

Autorzy:

Domański, Henryk
Przybysz, Dariusz

Powiązania:

https://bibliotekanauki.pl/articles/973890.pdf

Data publikacji:

2012-10-01

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

friendship barriers / bariery znajomości;
marital selection / dobór małżeński;
homogramy / homogamia;
stratification / stratyfikacja;
loglinear models / modele logarytmiczno-liniowe

Opis:

Similarly to patterns of intergenerational mobility, patterns of assortative mating are assumed to indicate the ease or difficulty with which individuals are able to cross social strata. The aim of the research presented in this paper was to explore whether any significant changes in friendship patterns took place since 1988 and to what extent they were followed by social openness in marital choices. To examine trends in assortative mating the authors used the POLPAN data from 1988, 2003, and 2008. Loglinear analysis was applied to assess: (i) degree of association between educational level/occupational category of respondents and their best acquaintances’, (ii) patterns of barriers to friendship, and (iii) variation in homogamy for acquaintances with the same education and occupational category. Research revealed that in 2008 the strength of association between occupational categories of respondents and their friends was lower than in 1988. Still lower was the association between occupational categories of husbands and wives. These findings suggest that the last 20 years saw an increase of societal openness, or - at least - that in 2008 social stratification was more open if compared with stratification data for the period narrowly preceding the collapse of the Communist system. The decline in the strength of association was paralleled by the decrease in both amicable and marital homogamy, with the most remarkable decline taking place in the category of higher level managers and professionals which may suggests that intelligentsia was more open in 2008.

Źródło:

Kultura i Społeczeństwo; 2012, 56, 1; 233-260
2300-195X

Pojawia się w:

Kultura i Społeczeństwo

Dostawca treści:

Biblioteka Nauki

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