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

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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

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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

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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

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