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Tytuł:
Tropem pierwszych francuskich survival horrorów
Tracing the first French survival horror games
Autorzy:
Jankowski, Filip
Powiązania:
https://bibliotekanauki.pl/articles/2041477.pdf
Data publikacji:
2021-12-30
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Opis:
Celem artykułu jest wykazanie, iż pierwowzory gier z gatunku survival horror, którego początek stereotypowo datuje się na lata 90. XX wieku, można odnaleźć jeszcze w latach 80. Na przykładzie wybranych gier powstałych w owej dekadzie we Francji autor dowodzi, iż już tytuły takie jak Infernal Runner, Le Pacte oraz Zombi ukształtowały poetykę gier survival horror, opartą na ikonografii literatury i filmu grozy, osaczeniu sterowanych awatarów, konfrontacji z obiektami budzącymi efekt grozy oraz symulacji stanów psychicznych postaci.
Survival horror games are stereotypically dated back to the 1990s. This article aims to trace the origin of this genre in the 1980s. The author examines selected games created in France in that decade. Then he argues that titles such as Infernal Runner, Le Pacte and Zombi had already shaped the poetics of survival horror games. This poetics relies on the iconography of literature and horror movies, the terror directed against the controlled avatars, the confrontation with objects evoking the effect of horror and the simulation of mental states of the characters.
Źródło:
Homo Ludens; 2021, 1, 14; 29-42
2080-4555
Pojawia się w:
Homo Ludens
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SEMIPARAMETRIC COX REGRESSION MODEL IN ESTIMATION OF SMALL AND MICRO ENTERPRISES’ SURVIVAL IN THE MALOPOLSKA VOIVODESHIP
Autorzy:
Ptak-Chmielewska, Aneta
Powiązania:
https://bibliotekanauki.pl/articles/453037.pdf
Data publikacji:
2013
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
survival analysis
Cox’s model
enterprises’ survival
Opis:
This paper aims at identifying factors (external and internal) affecting the ability of an enterprise to survive on the market. The analysis is based on the results of a retrospective study conducted in 2012 on a sample of enterprises from Malopolska voivodeship. Methods and models of event history analysis, including semiparametric Cox’s model were applied to analyse enterprises’ survival. The approach based on the event history analysis allows us to include dynamics of the process. The results provided extensive data on how factors such as size, activity sector, market range, legal form and internals conditions like: owner characteristics, investments, profits, reported barriers affect the survival of enterprises.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2013, 14, 2; 169-180
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tree-based induction of decision list from survival data
Autorzy:
Wróbel, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/333013.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
analiza przeżywalności
lista decyzji
zasada indukcji
survival analysis
survival trees
decision list
rule induction
Opis:
The paper presents an algorithm for induction of decision list from survival data. The algorithm uses a survival tree as the inner learner which is repeatedly executed in order to select the best rule at each iteration. The effectiveness of the algorithm was empirical tested for two implementations of survival trees on 15 benchmark datasets. The results show that proposed algorithm for survival decision list construction is able to induce more compact models than corresponding survival tree without the loss of the accuracy of predictions.
Źródło:
Journal of Medical Informatics & Technologies; 2012, 20; 73-78
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Significance tests of differences between two crossing survival curves for small samples
Autorzy:
Jurkiewicz, Tomasz
Wycinka, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/657936.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
survival analysis
censoring
crossing survival curves
statistical power
effective sample size
Opis:
Analiza przeżycia to zespół metod służących do modelowania czasu trwania kohorty, której jednostki są obserwowane od zdefiniowanego momentu początkowego do zdefiniowanego zdarzenia końcowego. Czas trwania jest traktowany jako zmienna losowa ciągła. Specyfika metod analizy przeżycia związana jest z występowaniem obserwacji cenzurowanych (uciętych) oraz tym, iż funkcje gęstości obserwowanej zmiennej są często nieznane, a rozkłady silnie asymetryczne, co uniemożliwia stosowanie metod klasycznej statystyki. Podstawową funkcją stosowaną w analizie przeżycia jest funkcja dalszego trwania wyrażająca prawdopodobieństwo, że jednostka nie doświadczy zdarzenia końcowego przed czasem t. Metodą oceny, czy pewne zmienne mają wpływ na zróżnicowanie czasu trwania jednostek, jest przeprowadzanie testów porównujących krzywe przeżycia na podstawie dwóch (lub więcej prób). Znaczna liczba tych testów została zaproponowana w ostatnich latach, w tym testy: Log-rank, będący jednym z lub najpopularniejszym, test Gehana, Tarone-Ware, Peto-Peto, Harringtona-Fleminga, testy typu Renyi. W literaturze mało uwagi poświęca się jednakże porównaniu własności tych testów. W poniższym opracowaniu przeprowadzono, przy wykorzystaniu metody Monte Carlo, analizę porównawczą mocy predykcyjnej testów dla dwóch krzywych przeżycia w małych próbach z różnym udziałem jednostek cenzurowanych. Losowano próby z populacji o założonym rozkładzie Weibulla przy różnych proporcjach jednostek kompletnych i cenzurowanych (o losowej kolejności pojawiania się ustalanej w oparciu o rozkład jednostajny) w celu określenia efektywnej wielkości prób dla poszczególnych testów. Szczególną wagę poświęcono problemowi krzyżowania się krzywych przeżycia i zdolności testów do wykrywania różnic między krzywymi przeżycia w takiej sytuacji.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2011, 255
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors Determining the Survival of New Companies
Autorzy:
Cegiełka, Marlena
Powiązania:
https://bibliotekanauki.pl/articles/1356274.pdf
Data publikacji:
2020-12-31
Wydawca:
Uniwersytet Warszawski. Wydział Nauk Ekonomicznych
Tematy:
start-up
survival of new companies
sources of financing
Opis:
This article discusses the determinants of the survival of new companies, with particular emphasis on their sources of financing. We have analysed the impact of experience in the same focal industry, of having a competitive advantage and intellectual property rights (patents and trademarks) and of debt financing on the probability of a start-up's survival, using a logit model based on the Kauffman Firm Survey (KFS) database data covering 4,928 American companies which operated from 2004 to 2011. Additionally, we can demonstrate that start-ups that use debt financing have a better chance of staying in business. Factors such as intellectual capital and competitive advantage are also positively correlated with the prospects for start-up survival.
Źródło:
Central European Economic Journal; 2020, 7, 54; 300 - 315
2543-6821
Pojawia się w:
Central European Economic Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Motyw „yūrei” w japońskich survival horrorach — analiza wybranych przykładów
The motif of “yūrei” in Japanese survival horrors – the analysis of selected case studies
Autorzy:
Staszenko, Dominika
Powiązania:
https://bibliotekanauki.pl/articles/973185.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
survival horror
Japanese mythology
remediation
interface
Opis:
This paper examines the phenomenon of survival horror games. It focuses on “yūrei”, a Japanese mythological supernatural being. “Yūrei” returns to the world of the living to take revenge on the people who harmed them in the past. The paper also concentrates on the remediation of “yūrei” iconography from literature and Japanese ghost movies into games. It analyses the characteristics of the survival horror genre, dividing them into the ludic and semantic systems. It also describes the relationships between traditional Japanese legends and modern texts, and presents an important issue of the main character (usually schematic and doomed to failure). Observations are based mainly on two games: “Calling” for Nintendo Wii and “Kuon” for PlayStation 2.
Źródło:
Replay. The Polish Journal of Game Studies; 2014, 01
2391-8551
2449-8394
Pojawia się w:
Replay. The Polish Journal of Game Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CORPORATE BANKRUPTCY AND SURVIVAL ON THE MARKET: LESSONS FROM EVOLUTIONARY ECONOMICS
Autorzy:
Boratyńska, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/488966.pdf
Data publikacji:
2016
Wydawca:
Instytut Badań Gospodarczych
Tematy:
corporate bankruptcy and survival
creative destruction
evolutionary economics
Opis:
The following paper is a theoretical and empirical study. The terminological differences between bankruptcy and insolvency have been indicated and compared in the article. Most frequently considered aspects of bankruptcy appear in definitions. The first of them emphasizes the economic character of bankruptcy. Insolvency is a culmination of a lack of financial means and the loss of solvency, which does not have a fading tendency, but develops into a permanent phenomenon. In legal terms, insolvency is an institution, whose purpose is to stop the accumulation of debts and most frequently it consists on the liquidation of the debtor's estate. The main purpose of the study is a critical review of the scientific achievements of the representatives of evolutionary economics within the scope and mechanism of bankruptcy and the survival of enterprises. The analyzed case of the Beta company, which went bankrupt, indicates that the companies which are not able to undertake proper adjustments to competitive conditions of the market at the right moment are eliminated from it. The theoretical law “the survival of the fittest” finds then its reflection in practice. The following research methods were used in the article: a descriptive analysis and the trajectories of J. Argenti in terms of models. Detailed examinations of files of insolvency proceedings of the Beta company have been carried out.
Źródło:
Oeconomia Copernicana; 2016, 7, 1; 107-129
2083-1277
Pojawia się w:
Oeconomia Copernicana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Education into identity: From „survival pedagogy” to „spiritual pedagogy”
Autorzy:
Marzec, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/951812.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
survival pedagogy
spiritual pedagogy
educational discourse
Paolo Freire
Carl Rogers
Opis:
I would like to present the general outlook on dominant tendencies within educational studies and shortly introduce my analysis in the context of so called „turning point” of educational discourse in the second half of XX century. I would like to propose to look at that moment of our actual cultural and educational field through two dominant perspectives and metaphors on which two different pedagogies are grounded. I would like to introduce two domianant metaphors within the educational field and the new tendencies, shortly how the educational studies shift from the „survival pedagogy” to the „spiritual pedagogy”. In general, this atriculations founded in the mindfull critics of educational practices undermine the cultural shift which is based on the process of abandom the tradition values, and the civilisation trends of development which generated the actual shape of culture to be axhausted. The great positivismproject was adjected by the new generations of educators with new and fresh approach to the educational problems. At that moment it’s clear that we stand before the creation the new, alternative vision of the social world and culture in general. I would like to present the changes of that social process on the example XX-century pedagogy, which I hope is touched by that cultural transformation. I would like to concentrate on the educational discourse as a econcrete area of such cultural shift. It’s rather difficult to recognize the whole field of that revolutionary and alternative movement within our culture. In my text I would like to show the process of transition from „survival pedagogy” into „spiritual pedagogy”. As we simply know from the poststructural perspective each of educational interpretation operates in the social contexts has own definition of the aims, functions and tesks of education. After Michel Foucault works we can say that each of the educational discourse and interpretation is grounded in the cultural power/knowledge forces. The new generation of educatorsproposed new approach towards social analyses of edacational aims and destination. In that movement the main aim of edacation is to build identity of pupils. There are of course many researchers shared that view on edacational discourse eg. Zbyszko Melosik, Tomasz Szkudlare, Lech Witkowski, Zbigniew Kwieciński in Poland ( to give only representative examples) and Henry Giroux and Peter McLaren in the United States.They proposed the new approach towards the understanding of edacation destination and obligations and broke the traditional interpretation. They rejected the traditional inerpretation of „formingthe reason” or „excercising the reason” as the main goal of education towards the popular culture and sensses. And they based their interpretations on that aspect of identity construction process. I would like to propose in my text general outlook at the cultural shift within educational discourse as the transtition from the metaphor of „survival pedagogy” towards the „spiritual pedagogy”. These metaphors also determined two different perspectives and approachesto education. I wolud argue that these perspectives are based on the two different antopological visions and determine different pedagogies.
Źródło:
Kultura-Społeczeństwo-Edukacja; 2019, 16, 2
2300-0422
Pojawia się w:
Kultura-Społeczeństwo-Edukacja
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survival of tunneled hemodialysis catheters after percutaneous placement
Autorzy:
Weber, Ewa
Liberek, Tomasz
Wołyniec, Wojciech
Gruszecki, Marcin
Rutkowski, Bolesław
Powiązania:
https://bibliotekanauki.pl/articles/1038854.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
hemodialysis
tunneled catheter
survival
Opis:
Background. Tunneled catheters are becoming increasingly used as a permanent dialysis access. Easy way of insertion and good long-term patency make them competitive to fistulas in some groups of patients. Methods. Late complications and survival of 180 tunneled catheters inserted from June 2010 to December 2013 in 171 unselected hemodialysis patients were analyzed. Results. The cumulative time of observation was 2103.5 patient-months and median observation was 9 months (range of 0.5-45 months). Only 19 out of 180 catheters were removed due to complications (12 for infections, 4 due to malfunction and 3 because of mechanical damage). Majority of catheters were removed electively: 27 after maturation of arterio-venous fistula (AVF), 4 after kidney transplant, 5 after transfer to peritoneal dialysis and 3 due to the recovery of renal function. At the end of the observation, 58 catheters were still in use and 64 patients had died with functioning catheter. When censored for elective catheter removal and patient death, 88.2% of catheters survived for 1 year. Catheter survival was significantly better in older patients (over 65 years, in comparison to patients < 65 years, p = 0.046). Conclusions. Nearly 90% of all inserted catheters gave reliable dialysis access as long as it was needed. Among them, over 30% of the inserted catheters were in use at the end of the observation period, and over 30% of patients had died with a functioning catheter. The results of tunneled catheters survival are encouraging and they should be taken into consideration during decision-making on vascular access, especially in the older patients.
Źródło:
Acta Biochimica Polonica; 2016, 63, 1; 139-143
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Deceptive behaviour of Colletotrichum truncatum: strategic survival as an asymptomatic endophyte on non-host species
Autorzy:
Ranathunge, N.P.
Sandani, H.B.P.
Powiązania:
https://bibliotekanauki.pl/articles/65702.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
deceptive behaviour
Colletotrichum truncatum
strategic survival
asymptomatic endophyte
asymptomatic survival
non-host species
pathogenicity
Opis:
Colletotrichum truncatum (syn. C. capsici), like many other members of the genus Colletotrichum, displays a highly developed infection mechanism against a number of agriculturally important crops. Among many survival strategies, C. truncatum is well known for its wide host range and high pathogenicity on several major crop species. Meticulous understanding of a pathogen’s infection mechanisms is the best way to achieve successful management of a disease. This study was carried out to evaluate the pathogenicity of C. truncatum on selected crop plants and weed species and to detect the possibility of non-host species to facilitate survival of the pathogen. Inoculation of an isolate of C. truncatum to four crops: curry chilli – Capsicum annuum (var. CA8), eggplant – Solanum melongena (var. Lena Iri), tomato – Solanum lycopersicum (var. Thilina) and green chilli – C. annuum (var. KA2) and three weed species: little ironweed (Vernonia cinerea), billygoat-weed (Ageratum conyzoides) and Bengal dayflower (Commelina benghalensis) resulted in approximately 3.5 disease severity (DS) (100% disease incidence-DI) on S. lycopersicum and C. annuum (var. KA2), followed by 2.8 and 1.8 DS (100%, 75% DI) on C. annuum (var. CA8) and S. melongena (var. Lena Iri), respectively. The three weed species were completely symptomless up to 8 weeks after the inoculation (WAI). However, microscopic studies and serial culturing of the inoculated tissues revealed the presence of the fungus in all the tested plants. Appressoria were present in all treated leaves and eventually broke their dormancy upon leaf senescence nearly 6 WAI. This study reveals the potential of C. truncatum infecting all tested crops and the capability of the three weed species in harboring the pathogen asymptomatically for several weeks. Thus, early management of inoculum in the field is suggested for C. truncatum diseases.
Źródło:
Journal of Plant Protection Research; 2016, 56, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
“My Monster Self”: Violence and Survival in Margaret Atwood’s Moral Disorder
Autorzy:
Fakhrshafaie, Nahid
Bahremand, Alireza
Powiązania:
https://bibliotekanauki.pl/articles/2032712.pdf
Data publikacji:
2021-11-22
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
caregiving
outsider
insider
garrison mentality
gaze
survival
Opis:
Margaret Atwood’s novels are usually celebrated for their blunt feminism. However, in Moral Disorder—a series of interconnected stories that forms a novel—feminist concerns are replaced with worries about territory and survival. The protagonist is an insider whose sole concern is to survive and to protect her territory. The confrontation between the narrator as the insider and the outsiders does not occur directly but could be inferred by her cruelty toward other characters and her violence against the animals under her care. The present study argues that this cruelty, which abounds in the novel, could be viewed as a substitute for violence against the outsiders. The narrator’s gaze at the Indian boy who entered the protagonist’s territory manifests a garrison mentality. The frequent references to axes in the novel are compared to the use of axes in “Wilderness Tips,” a short story by Atwood in which axes also have a metaphoric significance. The beheading and dismemberment of domestic animals could be the punishment awaiting the intruder. The novel establishes a division between the insider/outsider, here/there, self/other and civilized/barbaric to call for action and awareness about the importance of protecting one’s territory.
Źródło:
Text Matters: A Journal of Literature, Theory and Culture; 2021, 11; 263-278
2083-2931
2084-574X
Pojawia się w:
Text Matters: A Journal of Literature, Theory and Culture
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of Survival and Safety Requirements in European Union for Recreational Craft Inspections. A Spanish Case Study
Autorzy:
Torralbo, J.
Castells, M.
Powiązania:
https://bibliotekanauki.pl/articles/116415.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Spanish Case Study
Recreational Craft, European Legislation
Survival and Safety Requirements
Surveillance Safety Requirements
Survival Requirements
Craft Inspections
Opis:
Statistical data shows that a large number of maritime accidents are related to recreational craft. For instance, in Spain, more than fifty percent of the emergencies are related to pleasure boats at sea. Recreational craft marketed in the EU must comply with harmonized technical safety and environmental requirements defined by Directive 94/25/EC, as amended in 2003. On 28 December 2013, the new recreational craft directive 2013/53/EU was published in the Official Journal of the European Union. EU Member States have until 18 January 2016 to amend their national legislation and transpose the new directive. The current directive 94/25/EC as amended by directive 2003/44/EC will be repealed on 18 January 2016, after the full application of the new text. Although this directive, there is not a clear coordination and equivalence among the EU countries according to the survival and safety equipment compulsory for recreational crafts. The main purpose of this paper is to analyze and compare the types of survey / inspections to be carried in pleasure craft (non-commercial use), periodicity and required safety equipment in some member states of the European Union. A case study of Spain is presented. From the results obtained, we can make clear that in the European Union there is a lack of coordination in this area and indicate the need to unify a common pattern in inspections and survival and safety requirements of recreational boats in the EU.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 1; 103-111
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of tree-based methods used in survival data
Autorzy:
Yabaci, Aysegul
Sigirli, Deniz
Powiązania:
https://bibliotekanauki.pl/articles/2034119.pdf
Data publikacji:
2022-03-15
Wydawca:
Główny Urząd Statystyczny
Tematy:
tree-based methods
conditional inference trees
conditional inference forests
random survival forests
Opis:
Survival trees and forests are popular non-parametric alternatives to parametric and semiparametric survival models. Conditional inference trees (Ctree) form a non-parametric class of regression trees embedding tree-structured regression models into a well-defined theory of conditional inference procedures. The Ctree is applicable in a varietyof regression-related issues, involving nominal, ordinal, numeric, censored, as well as multivariate response variables and arbitrary measurement scales of covariates. Conditional inference forests (Cforest) consitute a survival forest method which combines a large number of Ctrees. The Cforest provides a unified and flexible framework for ensemble learning in the presence of censoring. The random survival forests (RSF) methodology extends the random forests method enabling the approximation of rich classes of functions while maintaining generalisation errors low. In the present study, the Ctree, Cforest and RSF methods are discussed in detail and the performances of the survival forest methods, namely the Cforest and RSF have been compared with a simulation study. The results of the simulation demonstrate that the RSF method with a log-rank score distinction criteria outperforms the Cforest and the RSF with log-rank distinction criteria.
Źródło:
Statistics in Transition new series; 2022, 23, 1; 21-38
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zachowanie w sytuacjach trudnych – przetrwanie emocjonalne
Behaviour in difficult situations – emotional survival
Autorzy:
Skłodowski, Henryk
Powiązania:
https://bibliotekanauki.pl/articles/944756.pdf
Data publikacji:
2011
Wydawca:
Medical Communications
Tematy:
crisis
crisis intervention
emotions
psychologist
survival
emocje
interwencja kryzysowa
kryzys
przetrwanie
psycholog
Opis:
Crisis is a fact of life. It commonly means difficulties but it is also perceived as a breakthrough, beginning of changes. In order to fight against crisis one must be aware of danger. The more we know about a potential threat, the easier it is to get prepared for struggle. Knowledge lets us control the situation. Crisis intervention should mean a fast situation diagnosis (identification of the crisis causes), identification of the situation of the person in crisis and the ability to cope with problems, ability to cooperate and get help. A major part is played by a clinical psychologist or a psychologist representing holistic approaches. Prevention of specialized atomisation of medicine is often discussed and measures are taken against hindering of patients complex treatment. Health is perceived in the context of psychosocial factors, as every disease is accompanied by strong emotions dependent on many factors. Due to appropriate support, motivation and energy to fight against it can be released. The issue of crisis and struggle against it was not appreciated in the past, although crisis as a phenomenon present in the sphere of human activity is an inevitable consequence of the reality one lives in. Many factors determine how one fights against it, such as: individual reactions, environment, circumstances. The author would like the mentioned issues to be treated as a contribution to the discussion on the “humanization of the world”, which cannot be achieved without the participation of us, psychologists who are humanists.
Kryzys to element życia. Potocznie oznacza trudności, ale postrzega się go także jako stan przełomu, początek zmian. Aby walczyć z kryzysem, trzeba mieć świadomość zagrożenia. Im więcej wiemy o potencjalnym zagrożeniu, tym łatwiej przygotować się do walki. Wiedza pozwala na kontrolowanie sytuacji. Interwencja kryzysowa powinna polegać na szybkim zdiagnozowaniu sytuacji (identyfikacji przyczyn kryzysu), określeniu sytuacji osoby w kryzysie i jej umiejętności poradzenia sobie z problemami, możliwości współdziałania, a także udzieleniu pomocy. Istotną rolę odgrywa tu psycholog lub psycholog kliniczny, reprezentujący holistyczne podejście. Coraz częściej mówi się o zapobieganiu specjalistycznej atomizacji medycyny i podejmuje kroki zapobiegające hamowaniu kompleksowego leczenia pacjenta. Zdrowie postrzega się w kontekście czynników psychospołecznych, gdyż wiadomo, że z każdą chorobą wiążą się silne emocje, zależne od wielu czynników. Odpowiednie wsparcie może wyzwolić motywację i energię do walki z chorobą. Problemu kryzysu i walki z nim nie doceniano w przeszłości, chociaż kryzys – jako zjawisko rozpatrywane w sferze funkcjonowania człowieka – jest nieuchronną konsekwencją rzeczywistości, w jakiej się znajdujemy. O sposobie walki z kryzysem decyduje wiele czynników: indywidualne reakcje, otoczenie, okoliczności. Autor chciałby, aby zasygnalizowane problemy stały się przyczynkiem do dyskusji nad próbą „humanizacji świata”, której nie uda się osiągnąć bez udziału nas, psychologów, a więc humanistów.
Źródło:
Psychiatria i Psychologia Kliniczna; 2011, 11, 3; 183-188
1644-6313
2451-0645
Pojawia się w:
Psychiatria i Psychologia Kliniczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mistrzowie drugiego planu. Motyw zombie w perspektywie literackiego sztafażu – od survival horroru przez dystopię do romansu paranormalnego
Autorzy:
Ksenia, Olkusz,
Powiązania:
https://bibliotekanauki.pl/articles/897588.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
zombie
horror
survival horror
fantastyka
literatura popularna
Opis:
Contemporary pop culture dynamics encourages artists to reconfigure, for instance, a plethora of character patterns. A fine example of such tendency is the trope of zombie associated by the mass imagination with a spiritless horde chasing after living survivors – and the genre meant to support such a narrative is, par excellence, a horror. The presence of zombies in horror does not, however, limit the creativity of authors who, while reinterpreting this trope, are wont to assign zombies a pivotal or tangential role in dystopian, pastiche, or paranormal narratives. The article gathers and sums up all similar tendencies in literature, placing a special emphasis on narrative experiments and recalling a multitude of examples.
Źródło:
Przegląd Humanistyczny; 2015, 59(3 (450)); 77-87
0033-2194
Pojawia się w:
Przegląd Humanistyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Partially Paramertic Estimation of Survival Function in the Right-censored Data
Częściowo parametryczny estymator funkcji przeżycia dla danych prawostronnie cenzurowanych
Autorzy:
Rossa, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/905270.pdf
Data publikacji:
2003
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
censored data
survival function
Opis:
Abstract. In many medical, biological or economic follow-up studies the subject of observation is survival, failure or duration time, that is the length of time elapsed from a specific starting point to an event of interest. In engineering applications it may be the time to failure of piece of equipment, in medical trials - time to occurrence of a particular disease or time to death of a patient due to some specific disease, in economic studies - time of being unemployed and so on. In the analysis of survival-type variables one is often faced with right-censored observations. Sometimes it is impossible to measure the true failure time of an individual due to previous occurrence of some other event called competing event, which result in interruption of observation before the event occurs. It may be withdrawal of the subject from the study or failure from some causes other the one of interest or simply limitation on the length of study. If we are only interested in failure time, then the competing events can be regarded as right-censoring the event of interest. It means that for each individual we observe either the time to failure or the time to censoring and for censored individuals we know only that the time to failure is greater then the censoring time. In reliability studies censoring is often planned in order to obtain information sooner than it is otherwise possible. Instead of testing m units until they fail, the Type I censoring design is employed in which more then m units are tested but observation is terminated earlier at the end of some specified period x*. Those units, which failed before this time yield complete observations and the rest of them is right-censored. Despite such incompleteness of the data it is often desired to estimate survival function that is the probability P(X > x) that the true failure time X in the population of individuals exceeds x. The paper deals with a problem of estimating survival function in the right-censored data. Some improvements of the well-known Kaplan - Meier estimator are discussed and their properties are studied.
W pracy omówione są dwa estymatory funkcji przeżycia, będące modyfikacją estymatora Kaplana-Meiera. Podstawowe własności statystyczne estymatorów zostały porównane za pomocą metod symulacyjnych.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2003, 164
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysing the impact of dependency on conditional survival functions using copulas
Autorzy:
Safari-Katesari, Hadi
Zaroudi, Samira
Powiązania:
https://bibliotekanauki.pl/articles/1363606.pdf
Data publikacji:
2021-03-03
Wydawca:
Główny Urząd Statystyczny
Tematy:
conditional survival distribution
copula
kendall’s tau
reserves
life table
Opis:
Nowadays, insurance contract reserves for coupled lives are considered jointly, which has a significant influence on the process of determining actuarial reserves. In this paper, conditional survival distributions of life insurance reserves are computed using copulas. Subsequently, the results are compared with an independence case. These calculations are based on selected Archimedean copulas and apply when the 'death of one individual' condition exists. The estimation outcome indicates that the insurer reserves calculated by means of Archimedean copulas are far more effective than those resulting from an independence assumption. The study demonstrates that copula-based dependency modelling improves the calculations of reserves made for actuarial purposes.
Źródło:
Statistics in Transition new series; 2021, 22, 1; 217-226
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
DEFAULT PREDICTION FOR SME USING DISCRIMINANT AND SURVIVAL MODELS, EVIDENCE FROM POLISH MARKET
Autorzy:
Ptak-Chmielewska, Aneta
Matuszyk, Anna
Powiązania:
https://bibliotekanauki.pl/articles/453421.pdf
Data publikacji:
2014
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
survival analysis
discriminant analysis
macro variables
rating model
Opis:
The aim of this paper was to compare the new technique (survival analysis) used in the credit risk models with the traditional one (discriminant analysis), analyse the strengths and weaknesses of both methods and their usage in practice. This study attempts to use macroeconomic data to build models and examine its impact to the prediction. For this purpose, a number of models was built on the basis of the sample of 1547 enterprises including 494 defaults. The time range covered by sample was 2002-2012.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2014, 15, 2; 369-381
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dioscin improves survival in murine endotoxemia induced by Lipopolysaccharide
Autorzy:
Bing, Han
Jing, Lu
Meitong, Liu
Zhe, Feng
shuang, Guan
Powiązania:
https://bibliotekanauki.pl/articles/895519.pdf
Data publikacji:
2018-12-31
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
cytokines
survival
Endotoxemia
Dioscin
NF- қB
Opis:
Dioscin is a natural steroidal saponin mainly exacted from Dioscoreae Rhizoma, which usually used as traditional medicine in east asia area. Dioscin has various pharmacological actions. However, little is known concerning the role on Lipopolysaccharide (LPS)-induced endotoxemia. The aim of the present study was to investigate the effects and possible mechanisms of dioscin against LPS-induced endotoxemia in mice. The data showed dioscin significantly increased mouse survival when mice were treated with dioscin prior to or after LPS challenge and significantly attenuated TNF-α, IL-1β and IL-6 production in serum. Further studies revealed that dioscin could downregulate LPS-induced nuclear transcription factor - қB (NF-қB) signal transduction pathways. These observations indicated that dioscin modulated early cytokine responses by blocking NF-қB activation, and thus, increased mouse survival in murine endotoxemia induced by LPS.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2018, 75, 6; 1347-1352
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survival in extremes
Autorzy:
Malecki, P.H.
Rypniewski, W.
Powiązania:
https://bibliotekanauki.pl/articles/80335.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
survival
extremophilic organism
natural source
enzyme
biotechnology
X-ray crystallography
psychrophilic chitina
marine bacteria
Moritella marina
chitinase
catalytic activity
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Psychomotor performance of Polish Air Force cadets after 36 hours of survival training
Autorzy:
Tomczak, Andrzej
Dąbrowski, Jan
Mikulski, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/990831.pdf
Data publikacji:
2017
Wydawca:
Instytut Medycyny Wsi
Tematy:
military training
survival
sleep deprivation
coordination motor skills
Opis:
Introduction. The preparation of Polish Air Force cadets for survival in isolation is a necessary element of their training, to demonstrate just how difficult can be the conditions they could encounter in a combat situation. Objective. The aim of the research was to assess the effect of long-term survival training on selected coordination motor skills in Air Force cadets. Materials and method. Fifteen air force cadets aged 19.6±0.3 years exercised for 36 hours during survival training without the possibility to sleep. They were examined 4 times: Day 1 – before effort (training), Day 2 – after 24 hours training, Day 3 – directly after 36 hours training, Day 4 – next day, after an all night rest. They were examined for shooting and reaction time, the ability to maintain body balance, running motor adjustment, handgrip force differentiation, and on Days 1 and 3, exercise capacity was evaluated with a 1 mile walking test. Results. The survival training resulted in significant decreases in maximum handgrip strength, corrected 50% max handgrip, maintenance of body balance and heart rate. No changes occurred in reaction time, running motor adjustment and shooting performance. Overnight rest did not result in recovery of any of the examined factors to the values observed on Day 1. Conclusion. Survival training combined with sleep deprivation mostly affected peripheral factors depending on strong action from both muscles and nervous system, whereas complex tasks involving short-term central alertness and moderate exertion were maintained. In order to improve performance, more endurance strength training, if possible combined with sleep deprivation, should be introduced in military training.
Źródło:
Annals of Agricultural and Environmental Medicine; 2017, 24, 3
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survival of Corynebacterium pseudotuberculosis within macrophages and induction of phagocytes death
Autorzy:
Stefanska, I
Gierynska, M.
Rzewuska, M.
Binek, M.
Powiązania:
https://bibliotekanauki.pl/articles/31827.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Corynebacterium pseudotuberculosis
pathogenicity
macrophage
apoptosis
autophagy
survival
pathogen
Opis:
Since C. pseudotuberculosis is a facultative intracellular pathogen the aim of this study was focused on evaluating mechanisms that allowed these bacteria to survive in macrophages and determining their influence on induction of cell death. The influence of Corynebacteria on the programmed cell death of macrophages was determined on the basis of induction the autophagy and apoptosis in the cultures of murine macrophage cell lines J774 infected with bacteria. Corynebacterium pseudotuberculosis strains could survive within macrophages more than 48 hours. During that time bacteria were released as a result of the process that lead to death of phagocytes. This property varied among studied strains. There was no increase of micro- tubule-associated protein I light chain 3 (MAP I LC3) activity in macrophages infected with examined strains comparing with uninfected cultures and cultures treated with autophagy inducer (rapamycin) that served as negative and positive controls, respectively. The study with confocal microscopy did not show the increasing of caspase-3 activity in the infected macrophages and their nucleus did not reveal the fragmentation.
Źródło:
Polish Journal of Veterinary Sciences; 2010, 13, 1; 143-149
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survival analysis: a case study of micro and small enterprises in Dolnośląskie and Opolskie Voivodship (Poland)
Autorzy:
ŁOBOS, Krzysztof
SZEWCZYK, Mirosława
Powiązania:
https://bibliotekanauki.pl/articles/529831.pdf
Data publikacji:
2013
Wydawca:
Wyższa Szkoła Bankowa we Wrocławiu
Tematy:
micro and small enterprises
Polska
survival analysis
Opis:
The aim of the study is to achieve initial recognition of the factors that determine the survival rate of Polish micro and small enterprises. The research, conducted in June 2011 and covering a sample of 147 entities, constitutes a pilot study. We explore the determinants of companies’ survival and test whether firms with different characteristics exhibit different performances in terms of the duration of survival. The results indicate substantial differences in the survival rates. The factors taken into account in this study, which to the greatest extent possible differentiates the whole sample in view of survival, are: running the business with employees or alone and specialist vs. popular activity as regards the required competences. Larger firms (with employees) are significantly less likely to close than smaller firms. Firms in highly competitive markets are more prone to closure.
Źródło:
Central and Eastern European Journal of Management and Economics (CEEJME); 2013, 1, 2; 123-140
2353-9119
Pojawia się w:
Central and Eastern European Journal of Management and Economics (CEEJME)
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza przeżycia. Zagrożenie tlenową toksycznością ośrodkową. Cz. 3
Survival analysis. The risk of central oxygen toxicity. Part 3
Autorzy:
Kłos, R.
Powiązania:
https://bibliotekanauki.pl/articles/1360555.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Medycyny i Techniki Hiperbarycznej
Tematy:
survival analysis
risk assessment
analiza przeżycia
szacowanie zagrożenia
Opis:
Analiza przeżycia zajmuje się modelowaniem statystycznym przebiegów czasowych, dla których interesujące są czasy trwania pomiędzy wybraną chwilą a oczekiwanym zdarzeniem. Zdarzenie to nazywane jest rezultatem lub punktem końcowym. Dane do analizy przeżycia mogą być także traktowane, jako czas do zaistnienia zdarzenia, czas przeżycia, czas do awarii, czas niezawodności, czas trwania itp. Analiza takich danych jest ważna zarówno w medycynie 1, naukach społecznych 2 jak i w inżynierii 3. Analiza przeżycia znalazła tez zastosowanie w technice nurkowej [1]. W artykule zostały przedstawione podstawy analizy przeżycia, które posłużą do szacowania możliwości wystąpienia symptomów tlenowej toksyczności ośrodkowej przedstawione w części czwartej cyklu artykułów.
Survival analysis deals with statistical modelling of time elapsed between a particular moment and an expected event. The event is referred to as a result or an end point. The data used in survival analysis may also be treated as the time until an event occurs, time of survival, time until a failure, time of reliability, duration, etc. An analysis of such data is equally important for medicine 1, social sciences2 and engineering3. Survival analysis can also be applied to diving [1]. The article presents the basics of survival analysis which will serve in estimating the probability of an occurrence of central oxygen toxicity symptoms, which will be listed in the fourth part of the cycle of articles.
Źródło:
Polish Hyperbaric Research; 2014, 3(48); 33-48
1734-7009
2084-0535
Pojawia się w:
Polish Hyperbaric Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental factors affecting the survival of soil dwelling Legionella longbeachae in water
Autorzy:
Potočnjak, Mia
Magdalenić, Zlatko
Dijan, Marija
Rebić, Danica
Gobin, Ivana
Powiązania:
https://bibliotekanauki.pl/articles/990884.pdf
Data publikacji:
2016
Wydawca:
Instytut Medycyny Wsi
Tematy:
legionella
survival
stagnant tap water
temperature
Opis:
Introduction. Legionella longbeachae, a causative agent of Legionnaire’s disease, has often been associated with potting soil and gardening, a feature quite distinct from other Legionella species. The precise transmission mechanism is still unknown, although due to the ecological coherence of the soil and water there is a potential risk of infection by contaminated stagnant water in the garden. Objective. The aim of the study was to explore the ability of L. longbeachae to survive in stagnant tap water usually used for watering in gardens. The influence of different factors (temperature, pH and NaCl concentration) on L. longbeachae survival in stagnant tap water was also tested. Results. The result showed that L. longbeachae is viable in stagnant tap water over 100 days at 4 °C and 25 °C. The survival of L. longbeachae exposed to different pH and NaCl concentration suggests resistance to low pH values (pH2 and pH5) and all tested NaCl concentrations at temperatures lower than 25 °C. The ability of L. longbeachae to persist in stagnant tap water should be taken seriously in the risk assessments as a possible hidden reservoir of infection.
Źródło:
Annals of Agricultural and Environmental Medicine; 2016, 23, 3
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction of Survival in Patients with Unresectable Colorectal Liver Metastases
Autorzy:
Hołówko, Wacław
Grąt, Michał
Hinderer, Barbara
Orlińska, Izabela
Krawczyk, Marek
Powiązania:
https://bibliotekanauki.pl/articles/1395796.pdf
Data publikacji:
2014-07-01
Wydawca:
Index Copernicus International
Tematy:
colorectal cancer
liver metastases
unresectable metastases
survival prediction
Opis:
Liver metastases are diagnosed synchronously with the primary tumour in 25% of patients with colorectal cancer. A half of the remaining patients develop liver metastases within 3 years following colectomy. At present, the only radical treatment of metastases is liver resection. Only 2.6% of patients survive 3 years if such treatment is not implemented. The aim of the study was to assess predictive factors of long-term survival in the group of patients with unresectable colorectal liver metastases carcinoma. Material and methods. Of 1029 patients with colorectal liver metastases, who were treated in the Department of General, Transplant and Liver Surgery of the Medical University of Warsaw in the years 2006-2012, cases of liver metastases assessed intraoperatively as unresectable were selected. The retrospective analysis included 85 patients. Based on the medical documentation, information concerning age, sex, characteristics of primary and secondary tumours, reasons for unresectability, neoadjuvant chemotherapy as well as local treatment of liver tumours was collected. Preoperative serum concentrations of CEA and CA 19-9 markers were considered. The Cox regression model, Kaplan- Meier estimator and log-rank test were applied in the statistical analyses. Results. The most common reason for unresectability were: number of metastases in 31 patients (36.5%) and extrahepatic metastases in 19 cases (22.4%). Overall survival in the entire group was 56.1% and 15.5% after 1 and 3 years respectively. A single-factor analysis showed that CEA serum levels (p=0.032; HR=1.002 per increase by 1 ng/ml) and the presence of extrahepatic metastases (p=0.037; HR=2.06) were predictors of worse survival. In a multivariate analysis, CEA concentration (p=0.017; HR=1.002 per increase by 1 ng/ml) was an independent predictor of death whereas the presence of extrahepatic metastases were not statistically significant (p=0.059; HR=2.09). Conclusions. Serum concentration of CEA marker is an independent predictor of worse survival, but the presence of extrahepatic metastases shows a similar tendency
Źródło:
Polish Journal of Surgery; 2014, 86, 7; 319-324
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of deep freezing of Phytophtora infestans on their survival and pathogenicity
Autorzy:
Sobkowiak, Sylwester
Zarzycka, Hanna
Zimnoch-Guzowska, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/2198938.pdf
Data publikacji:
2004-06-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
acclimatization
aggressiveness
liquid nitrogen
maintenance
Phytophthora infestans
survival
virulence
Opis:
The maintenance of Phytophthora infestans cultures isolates from blighted potato, frozen in liquid nitrogen, was studied in two experiments. The effects of deep freezing and acclimatization pre-treatment at different temperatures on culture survival and stability of virulence and aggressiveness were evaluated. The best survival of cultures maintained for three months in liquid nitrogen was expressed, when cultures were acclimatized before freezing at 7˚C. The survival of frozen cultures was significantly worse in comparison with control combinations stored on rye-agar and rye-agar under paraffin oil for short time (in experiment I – 40 days, in experiment II – three months). The virulence spectrum of frozen cultures after thawing was more narrow than that one observed before culture freezing. However this virulence spectrum did not differ significantly from virulence range of control cultures. The level of aggressiveness of culture stored in liquid nitrogen did not differ significantly from control cultures as well. The virulence spectrum and aggressiveness level of cultures frozen in liquid nitrogen were significantly higher after two passages of thawed cultures on potato tissues than after single passage.
Źródło:
Plant Breeding and Seed Science; 2004, 49; 79-89
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza mocy wybranych testów jednorodności czasów trwania dla populacji o rozkładzie Weibulla
The Power Analysis of Tests for Comparing Survival of Weibull Distributed Populations
Autorzy:
Sokołowski, Andrzej
Denkowska, Sabina
Fijorek, Kamil
Salamaga, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/422721.pdf
Data publikacji:
2013
Wydawca:
Główny Urząd Statystyczny
Tematy:
funkcja przeżycia
porównywanie funkcji przeżycia
badania symulacyjne
survival function
comparing survival
Monte Carlo research
Opis:
W ostatnim latach testy porównywania czasu trwania zjawisk znajdują coraz więcej zastosowań w analizie zagadnień ekonomicznych. Przykładami może być analiza czasu pozostawania na bezrobociu, czasu poszukiwania pracy, czasu istnienia przedsiębiorstwa, itp. W literaturze można spotkać wiele testów do porównywania funkcji przeżycia. Autorzy niniejszego opracowania zdecydowali się przeprowadzić badania symulacyjne, których celem jest porównanie efektywności najczęściej stosowanych testów służących do porównywania czasu trwania zjawisk, w wersji zaimplementowanej w pakiecie STATISTICA. Za pomocą symulacji badano poziom błędu pierwszego rodzaju oraz moc następujących testów statystycznych służących testowaniu hipotezy zerowej głoszącej równość krzywych przeżycia w dwóch populacjach. Analizie poddano następujące testy: Wilcoxona wg. Gehana, F Coxa, Coxa-Mantela, Wilcoxona wg. Peto i Peto i log-rank. W ramach symulacji generowano próby losowe z rozkładu Weibulla.
Recently, tests for comparing survival distributions become more and more popular and used in applied economics. Unemployment duration, time needed to find a new job, enterprise survival or waiting for a commodity to be sold are good examples. There are a number of tests to compare survival distributions proposed in statistical literature. The aim of this research was to analyze, by the means of computer simulations, the effectiveness of survival tests as implemented in STATISTICA software. The following tests have been outlined and compared: Wilcoxon, Geehan, Cox-Mantel, Peto & Peto and log rank. Random samples were generated from Weibull distribution.
Źródło:
Przegląd Statystyczny; 2013, 60, 3; 305-323
0033-2372
Pojawia się w:
Przegląd Statystyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of models of survival analysis in the assessment of the situation of macrosectors of listed companies
Autorzy:
Bieszk-Stolorz, Beata
Markowicz, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/2127981.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Tematy:
survival analysis
listed companies
bear market
macrosectors
Opis:
Goal – The goal of the article is the assessment of the possibilities of recovery after decrease of prices of shares of companies listed on the Warsaw Stock Exchange in the years 2008-2009 and 2011-2013 in particular macrosectors: industrials, financials and services. The probability and intensity of increase and decrease of prices were analysed. Research methodology – Selected methods of survival analysis were applied. The Kaplan-Meier estimator was used in the analysis of the probability of increase and decrease of prices of shares in the macrosectors. The intensity of decrease and increase of prices was assessed by means of the empirical hazard model and the proportional Cox model. Threshold values of the increase and decrease of prices were calculated on the basis of changes of the WIG index in analysed periods. Comparative analysis of these two periods was also conducted. Score – The hypothesis about a similar situation of macrosectors during the financial crisis and in the bear market was confirmed. In case of the financials macrosector, its reaction to the market situation was the strongest in both the decrease and increase of share prices. The companies of the industrials macrosector were in better situation than the financial companies. The service companies reacted weakly on the market changes. Originality /value – The application of the survival analysis methods in the study of the capital market.
Źródło:
Optimum. Economic Studies; 2018, 1(91); 3-15
1506-7637
Pojawia się w:
Optimum. Economic Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary field studies on survival rate of seeds of invasive terophyte Impatiens glandulifera Royle (Balsaminaceae)
Autorzy:
Janczak, B.
Powiązania:
https://bibliotekanauki.pl/articles/878366.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
survival rate
seed
invasive plant
Impatiens glandulifera
Balsaminaceae
invasion ecology
invasive species
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2013, 17
1896-1908
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The survival of megafauna after the end-Pleistocene impact: a lesson from the Cretaceous/Tertiary boundary
Autorzy:
Ruban, Dmitry A.
Powiązania:
https://bibliotekanauki.pl/articles/94550.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
impact
survival
megafauna
Pleistocene
Cretaceous/Tertiary boundary
wpływ
przeżywalność
plejstocen
Opis:
Survival of Pleistocene megafauna after the hypothesized impact of a bolide during the latest Pleistocene seems to be partly island-centered, whereas the survival of dinosaurs and ammonites after the comparable catastrophe at the Cretaceous/Tertiary boundary seems to have occurred in a fairly haphazard way within the areas affected by the impact. This poses some new questions about the possible mechanism behind the end-Pleistocene extinction, although it does not disprove an impact as a plausible cause.
Źródło:
Geologos; 2009, 15, 2; 129-132
1426-8981
2080-6574
Pojawia się w:
Geologos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The survival of Small and Medium Business
Przetrwanie małych i średnich przedsiębiorstw
Autorzy:
Kristanti, Farida Titik
Rahayu, Sri
Isynuwardhana, Deannes
Powiązania:
https://bibliotekanauki.pl/articles/405259.pdf
Data publikacji:
2019
Wydawca:
Politechnika Częstochowska
Tematy:
financial distress
SMEs
survival analysis
trudna sytuacja finansowa
MŚP
analiza przeżycia
Opis:
Small and Medium Businesses (SMEs) in developing countries are always associated with economic and social problems (for example: poverty, unemployment, economic inequality). Therefore, the development of this business is expected to contribute positively to these issues. In order to realize this, SMEs must be sustainable, at least they must be able to avoid financial distress. Financial distress occurs when a company is unable to fulfill its obligations. This study aims at analyzing the survival time and determinants of financial distress from SMEs in Indonesia. Purposive sampling used in the data of companies listed on the Indonesia Stock Exchange produced 34 samples of SMEs. The survival analysis used because it is more consistent and accurate. The Cox Hazard Model was used and found the fact that for SMEs in Indonesia, the probability of experiencing financial distress after eight years was small. Age and Net working capital to total assets negatively affected financial distress, while inflation and economic growth had a positive effect on SMEs financial distress in Indonesia. Therefore, it is important for companies to survive for up to eight years by having optimum working capital, since macro factors are difficult to control by the companies. The policy makers are recommended to keep monitoring inflation and economic growth so that Indonesian SMEs can survive.
Artykuł omawia problemy związane z małymi i średnimi przedsiębiorstwami (MŚP) w krajach rozwijających się które zawsze kojarzą się z problemami gospodarczymi i społecznymi (na przykład: ubóstwo, bezrobocie, nierówności ekonomiczne). Dlatego oczekuje się, że rozwój tego biznesu pozytywnie wpłynie na te kwestie. Aby to zrozumieć, MŚP muszą być zrównoważone, a przynajmniej muszą być w stanie uniknąć kłopotów finansowych. Trudności finansowe występują, gdy firma nie jest w stanie wypełnić swoich zobowiązań. Niniejsze badanie ma na celu analizę czasu przeżycia i czynników warunkujących trudności finansowe MŚP w Indonezji. Próbki celowe zastosowane w danych spółek notowanych na giełdzie w Indonezji dały 34 próbki MŚP. Zastosowana analiza przeżycia, ponieważ jest bardziej spójna i dokładna. Zastosowano model zagrożenia Coxa i stwierdzono, że w przypadku MŚP w Indonezji prawdopodobieństwo wystąpienia trudności finansowych po ośmiu latach było niewielkie. Wiek i kapitał obrotowy netto do sumy bilansowej negatywnie wpłynęły na trudną sytuację finansową, podczas gdy inflacja i wzrost gospodarczy miały pozytywny wpływ na trudną sytuację finansową MŚP w Indonezji. Dlatego ważne jest, aby firmy mogły przetrwać do ośmiu lat dzięki optymalnemu kapitałowi obrotowemu, ponieważ firmy są trudne do kontrolowania w skali makro makro. Zaleca się decydentom, aby monitorowali inflację i wzrost gospodarczy, aby indonezyjskie MŚP mogły przetrwać.
Źródło:
Polish Journal of Management Studies; 2019, 20, 2; 311-321
2081-7452
Pojawia się w:
Polish Journal of Management Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Beauty survival workshop. Jolanta Wagner Inwentaryzacja kosmetyków Jolanty Wagner
Autorzy:
Wagner, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/1194626.pdf
Data publikacji:
2019
Wydawca:
Akademia Sztuk Pięknych im. Władysława Strzemińskiego w Łodzi
Źródło:
Powidoki - magazyn artystyczno-naukowy; 2019, 1; 140-141
2657-652X
Pojawia się w:
Powidoki - magazyn artystyczno-naukowy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Significance of Prior Information in Bayesian Parametric Survival Models
Znaczenie informacji a priori w bayesowskich parametrycznych modelach przeżycia
Autorzy:
Grzenda, Wioletta
Powiązania:
https://bibliotekanauki.pl/articles/905774.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
survival parametric models
Bayesian inference
prior distribution
MCMC method
unemployment
Opis:
The Bayesian approach gives the possibility of using in the research additional information that is external to the sample. The primary objective of this paper is to analyse the impact of the prior information on the posterior distribution in Bayesian parametric survival models. In this work the exponential models and Weibull models with different prior distributions have been estimated and compared. The aim of this research is to investigate the determinants of unemployment duration. The models have been estimated using Markov chain Monte Carlo method with Gibbs sampling.
W pracy przedstawiono parametryczne modele przeżycia w ujęciu bayesowskim. Podejście bayesowskie wymaga zadania rozkładów a priori dla szacowanych parametrów modelu. Rozkład a priori parametru jest rozkładem prawdopodobieństwa, który wyraża całą wiedzę badacza o szacowanym parametrze przed sprawdzeniem aktualnych danych. W literaturze przedmiotu często spotyka się nieinformacyjne rozkłady a priori, które wyrażają brak wstępnej wiedzy badacza o szacowanych parametrach modelu. W celu pokazania znaczenia informacji a priori oraz jej wpływu na rozkład a posteriori oszacowano kilka parametrycznych modeli przeżycia przy różnych rozkładach a priori. Przedmiot badań stanowią determinanty długości czasu pozostawania bez pracy.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2013, 285
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survival analysis on data of different surgery techniques to evaluate risk of postoperative complications
Autorzy:
Briš, R.
Praks, P.
Janurová, K.
Martínek, L.
Powiązania:
https://bibliotekanauki.pl/articles/2069630.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
colectom
censored medical survival data
comparison of surgery techniques
Opis:
Medical survival censored data of about 850 patients are evaluated to compare two basic surgery techniques. Data comes from patients who underwent colectomy in the University Hospital of Ostrava. The data has been screened into three general groups: all patients (data from both rectum and colon operations), data from rectum operations, data from colon operations. Two basic surgery techniques are used for the colectomy: either classical (open) or laparoscopic operation. Basic question which arises at the colectomy operation is which type of operation to choose to guarantee longer overall survival time. Two methodological approaches have been used to answer this relevant question. First is the non-parametric approach which results from Kaplan- Meier estimates of the survival function. For each data group two survival curves are constructed, i.e. for both open and laparoscopic type of operation. Final survival curves are compared and evaluated using advanced methods of statistical inference (e.g. log-rank test). Second is parametric approach which results from modelling of survival time. It is based on Maximum Likelihood Estimation method to estimate parameters of probability distribution of overall survival time. Moreover, two Weibull models are used to compare the two surgery techniques. Mean survival times assigned to particular types of operation are compared
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 1; 33--38
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survival analysis on data streams: Analyzing temporal events in dynamically changing environments
Autorzy:
Shaker, A.
Hüllermeier, E.
Powiązania:
https://bibliotekanauki.pl/articles/331440.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
data stream
survival analysis
event history analysis
earthquake data
Twitter data
strumień danych
analiza przeżycia
Opis:
In this paper, we introduce a method for survival analysis on data streams. Survival analysis (also known as event history analysis) is an established statistical method for the study of temporal “events” or, more specifically, questions regarding the temporal distribution of the occurrence of events and their dependence on covariates of the data sources. To make this method applicable in the setting of data streams, we propose an adaptive variant of a model that is closely related to the well-known Cox proportional hazard model. Adopting a sliding window approach, our method continuously updates its parameters based on the event data in the current time window. As a proof of concept, we present two case studies in which our method is used for different types of spatio-temporal data analysis, namely, the analysis of earthquake data and Twitter data. In an attempt to explain the frequency of events by the spatial location of the data source, both studies use the location as covariates of the sources.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2014, 24, 1; 199-212
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Machine learning models for predicting patients survival after liver transplantation
Autorzy:
Jarmulski, W.
Wieczorkowska, A.
Trzaska, M.
Ciszek, M.
Paczek, L.
Powiązania:
https://bibliotekanauki.pl/articles/305726.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
machine learning
models interpretability
survival prediction
generalized additive models (GAM)
liver transplant
Opis:
In our work, we have built models predicting whether a patient will lose an organ after a liver transplant within a specified time horizon. We have used the observations of bilirubin and creatinine in the whole first year after the transplantation to derive predictors, capturing not only their static value but also their variability. Our models indeed have a predictive power that proves the value of incorporating variability of biochemical measurements, and it is the first contribution of our paper. As the second contribution we have identified that full-complexity models such as random forests and gradient boosting lack sufficient interpretability despite having the best predictive power, which is important in medicine. We have found that generalized additive models (GAM) provide the desired interpretability, and their predictive power is closer to the predictions of full-complexity models than to the predictions of simple linear models.
Źródło:
Computer Science; 2018, 19 (2); 223-239
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Generalized Kaplan Meier Estimator for Fuzzy Survival Times
Uogólniony estymator Kaplana Meiera dla rozmytego czasu przeżycia
Autorzy:
Shafiq, Muhammad
Viertl, Reinhard
Powiązania:
https://bibliotekanauki.pl/articles/434010.pdf
Data publikacji:
2015
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
characterizing function
fuzzy numbers
Kaplan Meier estimator
non-precise data
survival time
Opis:
Survival analysis can be defined as a set of methods where the response of interest is the time until a specified event occurred. The most common specified event is death and the related time is called survival time or life time in medical sciences. The Kaplan Meier estimator is one of the popular methods for precise survival times. It is natural that life time is of a continuous nature, therefore it is unrealistic to treat life time observations as precise numbers. In [Viertl 2009] it is shown that life time observations are not precise numbers, but more or less fuzzy. In this study a Generalized Kaplan Meier estimator for fuzzy survival time observations is proposed.
Źródło:
Śląski Przegląd Statystyczny; 2015, 13 (19)
1644-6739
Pojawia się w:
Śląski Przegląd Statystyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bayesian Exponential Survival Model in the Analysis of Unemployment Duration Determinants
Bayesowski wykładniczy model przeżycia w analizie determinant długości czasu pozostawania bez pracy
Autorzy:
Grzenda, Wioletta
Powiązania:
https://bibliotekanauki.pl/articles/906856.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
unemployment
survival exponential model
Bayesian inference
MCMC method
Opis:
The primary objective of the work is to identify demographic and socio-economic factors influencing the unemployment duration in the recent period in Poland. Different approaches to the problem have been applied. In this paper we have used a survival parametric model in Bayesian approach. The following determinants have been concerned in the model: sex, marital status, education level, information about continuing an education, region of Poland, and age of respondent. The empirical analysis is based on “Household budgets in 2008” survey of Central Statistical Office and indicates the main factors influencing unemployment duration.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2012, 269
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth performance and survival rate of giant gourami fingerlings (Osphronemus goramy Lacepede, 1801) with potassium diformate addition
Autorzy:
Nugraha, Algi Azmi
Yustiati, Ayi
Bangkit, Ibnu
Andriani, Yuli
Powiązania:
https://bibliotekanauki.pl/articles/1030092.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Osphronemus goramy
giant gourami
growth
potassium diformate
survival
Opis:
This research aims to determine the method of adding potassium diformate to commercial feed to increase survival and growth in gourami juvenile. The method used in this research is an experimental method using a Completely Randomized Design (CRD), consists of four treatments and four replications. The treatments used are (A) Without giving Potassium diformate (control), (B) giving potassium diformate by 0.3%, (C) giving potassium diformate by 0.5% and (D) giving potassium diformate by 0.8%. The test fish used was 300 giant gourami with a length of 4-6 cm. The containers used in this research were aquariums with a size of 40 × 30 × 40 cm3 that reared in 16 aquariums. The density of giant gourami fingerlings during the research was 10 fish per aquarium. The rearing period was 40 days. The feed given was 3% of body mass. Water quality parameters (temperature, pH and dissolved oxygen) were observed every 10 days. Other parameters are the daily growth rate, feed efficiency, the survival rate and the acidity of intestinal and stomach which were observed every 10 days. The results showed that the addition of potassium diformate by 0.3% gives the best results of daily growth rate of 1.31%, feeding efficiency of 37.18%, survival rate of 100% and decreased acidity in the intestine and stomach which helps in the process of protein absorption.
Źródło:
World Scientific News; 2020, 143; 103-114
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unbiased Estimation of Survival Probabilities for Censored Data with Known Censoring Times
Nieobciążona estymacja prawdopodobieństw przeżycia w modelu z obserwowalnymi czasami cenzurowania
Autorzy:
Rossa, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/904687.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
survival analysis
censored data
non-parametric estimation
Reduced-Sample Estimator
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2005, 194
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Models of Cox’s Proportional Hazards
Autorzy:
Deszyńska, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/748546.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
Cox model, hazard, survival analysis
Opis:
Celem pracy jest prezentacja modelu hazardów proporcjonalnych Coxa(ang. Cox proportional hazards model), charakteryzujących go własności oraz metod esty-macji jego parametrów. Znajduje on zastosowanie w analizie przeżycia przy przewidywaniuszans przetrwania pewnych obiektów (najczęściej pacjentów w badaniach medycznych).Istotną zaletą modelu jest możliwość uwzględnienia w nim danych niepełnych, które częstopojawiają się w przeprowadzanych badaniach — zarówno w sposób losowy, jak i celowy.Model Coxa sprawdza się szczególnie dobrze w sytuacji, gdy interesujące jest określenieskuteczności sposobu leczenia w sensie porównawczym, czyli w odniesieniu do innych te-rapii. Terminologia i przykłady zaczerpnięte są na ogół z medycyny, ale opisany modelstosuje się również np. w socjologii, kryminalistyce czy inżynierii.Słowa kluczowe: model Coxa, hazard, analiza przeżycia.
The paper presents Cox proportional hazards model, its properties and methods of its parameters estimation. It is widely applicable in survival analysis – in prediction of survival chances of some objects (usually patients in medical studies). The essential advantage of the model is allowing of incomplete data, which often appear in studies –both in random and fixed way. Cox model works especially well when determination of treatment effectiveness in comparative sense (with reference to other therapies) is needed. Terminology and examples are usually taken from medicine but the model can be used also in sociology, crime detection or engineering.
Źródło:
Mathematica Applicanda; 2011, 39, 2
1730-2668
2299-4009
Pojawia się w:
Mathematica Applicanda
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of long-term storage in liquid nitrogen on survival and pathogenicity of Phytophthora infestans isolates
Autorzy:
Sobkowiak, S.
Zarzycka, H.
Sliwka, J.
Powiązania:
https://bibliotekanauki.pl/articles/65851.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
long-term storage
liquid nitrogen
survival
pathogenicity
Phytophthora infestans
isolate
aggressiveness
virulence
Opis:
A set of 14 aggressive Phythophthora infestans (Mont.) de Bary isolates with a wide range of virulence, was stored for eight years (2002-2010) in liquid nitrogen at -196°C (209 samples) and under paraffin oil at 7°C (70 test tubes). The survival rate of samples stored in liquid nitrogen was scored as 88%, 45 days after thawing. The revived isolates were passaged through potato tissues four times and tested for virulence on a set of 11 Black’s differentials. The mean number of virulence factors per isolate, of these P. infestans isolates evaluated before storage, was 7.4. The isolates stored in liquid nitrogen and under paraffin oil and passaged four times through potato tissues showed a similar mean number of virulence factors per isolate, 7.3 and 6.9, respectively. Isolates stored under paraffin oil showed no expression of factor avr5, but expression of this factor occurred in six isolates after liquid nitrogen treatment. The initial expression of this factor occurred in four isolates. Before storage, the average aggressiveness of the tested isolates was assessed as 1.7, on a 1-9 scale, where 1 means the most aggressive. After storage and after four subsequent passages through potato tissues, the mean aggressiveness of isolates stored in liquid nitrogen and under paraffin oil reached the level of 1.5 and 2.1, respectively. The mean aggressiveness was not significantly different from the level of initial assessment.
Źródło:
Journal of Plant Protection Research; 2012, 52, 4
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Picea abies in Northrhine-Westphalia
Autorzy:
Schmitt, H P
Heyder, J.
Powiązania:
https://bibliotekanauki.pl/articles/40997.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
plant survival
survival
genetic resource
seed storage
seed orchard
Sauerland region
Westphalia
Germany
Opis:
The Sauerland region of southern Westphalia has the most economic stands of Norway spruce in the state of Northrhine-Westphalia (Germany). As shown by historical research and genetic analysis, the seeds for these stands were imported from Thuringia around the year 1880. Therefore, the two states are collaborating closely to secure the genetic variety of the spruce and develop new sources of seed supply. The survival of the Hochsauerland Norway spruce is now under threat: these stands have already been harvested or are due for harvesting shortly, in addition, many of the older stands were destroyed by the gale "Kyrill" in 2007, and only a few stands have remained. Since its foundation, the Forest Gene Bank of Northrhine-Westphalia has taken the following measures to preserve the gene pool of the Hochsauerland spruce and conserve it in the long term: storage of seed from 100 representative trees in all the most valuable stands of spruce (since 1985); establishment of seed orchards; and establishment of replacement stands. Thanks to those measures, the genetic information of the Norway spruce stands of Thuringian origin has been secured, and substantial stocks of seed are available for reforestation.
Źródło:
Dendrobiology; 2009, 61 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Peroxiredoxin-1 as a prognostic factor in patients with ovarian cancer
Autorzy:
Sieńko, J.
Teliga-Czajkowska, J.
Przytula, E.
Czajkowski, K.
Smolarczyk, R.
Nowis, D.
Powiązania:
https://bibliotekanauki.pl/articles/2085041.pdf
Data publikacji:
2019
Wydawca:
Instytut Medycyny Wsi
Tematy:
Peroxiredoxin-1
PRDX-1
ovarian cancer
overall survival
disease free survival
Opis:
Introduction and objective. Peroxiredoxin-1 (PRDX-1) belongs to a family of antioxidant enzymes and has proved to be a versatile molecule regulating cell growth, differentiation and apoptosis. PRDX1-regulated signaling pathways play an important role in the progression and metastasis of human tumours, especially in breast, esophageal and lung cancers. The aim of the study was to evaluate the expression of PRDX-1 in ovarian cancer tissues, and to test the clinical value of PRDX-1 as a prognostic factor in this malignancy. Materials and method. PRDX-1 expression was assessed by automated immunohistochemistry in tumours taken from 55 patients with ovarian cancer during primary surgery. Specimen were formalin-fixed and preserved in paraffin-embedded blocks. The results were correlated with clinicopathological data. Results. A high expression of PRDX-1 was observed in 20% of cases, and was associated with worse compliance to chemotherapy protocol (P<0.002), worse response to chemotherapy (P<0.04), and higher levels of CA 125 after the 1st line treatment (P<0.004). PRDX-1 positive subjects had a significantly lower 5-year disease-free survival (9.1% vs. 42.6%, P<0.01) and a lower 5-year overall survival (9.1% vs. 56.7%; P<0.002). Multivariate analysis showed that a high expression of PRDX-1 is an independent prognostic factor of poor, overall survival (P<0.002) and a disease-free survival (P<0.01). Conclusion. Results of the study show that PRDX-1 expression in tumour tissues can be another biomarker of prognosis in patients with ovarian cancer.
Źródło:
Annals of Agricultural and Environmental Medicine; 2019, 26, 3; 415-419
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelowanie systemów autonomicznych i optymalizacja ich sposobów na przetrwanie
Modeling of Autonomous Systems and Optimization of Their Survival Strategies
Autorzy:
Węgrzyn, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/553216.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Instytut Filozofii
Tematy:
system autonomiczny
modelowanie
optymalizacja
strategia zapewniająca przetrwanie
autonomous system
model-building
optimization
survival strategy
Opis:
Rozważa się problemy systemowe: najmniejszej „czarnej skrzynki” oraz najmniejszego systemu autonomicznego w sensie Mariana Mazura. Przedstawia się pewne konsekwencje biologiczne. Przy użyciu uogólnienia Mazurowskiego pojęcia autonomu rozważa się proste ilościowe aspekty łączenia i optymalizacji działania takich układów. Następnie przedstawia się podstawowe strategie energetyczne organizmów żywych, zapobiegające degeneracji ich materii: rozbudowę, transformację struktury oraz odrzucanie zużytego tworzywa.
The problems of: a minimal „black box” and a minimal autonomous system (a concept proposed by Marian Mazur) are considered. Some biological implications are considered, too. A generalization of the autonomous system is used to present simple quantitative aspects of joining and optimization of functioning of such systems. Basic energetic strategies employed by organisms to prevent degeneration of their bodies are listed: extension, transformation of structure, rejecting worn out body parts.
Źródło:
Filozoficzne Aspekty Genezy; 2013, 10; 203-239
2299-0356
Pojawia się w:
Filozoficzne Aspekty Genezy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analysis of job seniority among unemployed. Application of model
Autorzy:
Jackowska, Beata
Wycinka, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/658393.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
survival analysis
event history anlysis
survival time
risk
Kaplan-Meier estimator
Cox model
Akaike Information Criterion (AIC)
Bayesian Information Criterion (BIC)
Opis:
W artykule wykorzystano metody analizy przeżycia (analizy historii zdarzeń do badania czasu pracy u ostatniego pracodawcy osób długotrwale bezrobotnych. W pierwszym posłużono się analizą Kaplana-Meiera w celu identyfikacji oraz efektywnej kategoryzacji zmiennych determinujących długość okresu ostatniej pracy. W drugim kroku skonstruowano model proporcjonalnego hazardu Coxa. Przy konstrukcji modelu wykorzystano następujące kryteria: test istotności modelu oparty na ilorazie wiarygodności oraz kryteria informacyjne. Szczególną uwagę poświęcono własnościom modelu Coxa w celu zapewnienia poprawności jego stosowania w zagadnieniach społeczno-ekonomicznych.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2011, 255
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High-grade mutant OmpF induces decreased bacterial survival rate
Autorzy:
Zhao, Zhi-ping
Liu, Ting-ting
Zhang, Li
Luo, Min
Nie, Xin
Li, Zai-xin
Pan, Yu
Powiązania:
https://bibliotekanauki.pl/articles/1039304.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
antibiotic resistance
mOmpF
OmpF
outer membrane protein
bacterial survival rate
Opis:
OmpF plays very important roles in the influx of antibiotics and bacterial survival in the presence of antibiotics. However, high-grade mutant OmpF and its function in decreasing bacterial survival rate have not been reported to date. In the present study, we cloned a high-grade mutant OmpF (mOmpF) and sequence analysis suggested that over 45 percent of the DNA sequence was significantly mutated, leading to dramatic changes in over 55 percent of the amino acid sequence. mOmpF protein was successfully expressed. When grown in the presence of antibiotic, the bacterial survival rate decreased and the antibiotic inhibition zone became larger with the increase of the mOmpF. It was concluded that concentration of high-grade mutant mOmpF dramatically influenced the bacterial survival rate. The study presented here may provide insights into better understanding of the relationships between structure and function of OmpF.
Źródło:
Acta Biochimica Polonica; 2014, 61, 2; 369-373
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przeżywalność Salmonella sp. w wodach powierzchniowych w zmiennych warunkach termicznych
Survival of Salmonella sp. in surface waters under variable thermal conditions
Autorzy:
Budzińska, K.
Brudnicki, A.
Traczykowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/1819825.pdf
Data publikacji:
2009
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
wody powierzchniowe
Salmonella
przeżywalność
warunki termiczne
survival
thermal conditions
Opis:
Kwestia destruktywnych oddziaływań człowieka na ekosystemy wodne jest bardzo złożona i wielopłaszczyznowa. Woda ze względu na ogólną dostępność jest środowiskiem, które odgrywa bardzo ważną rolę w rozprzestrzenianiu się chorób. Najbardziej podatne na zanieczyszczenia bakteryjne są wody powierzchniowe, a najczęściej izolowane ze środowiska wodnego bakterie chorobotwórcze to patogeny pochodzenia jelitowego mogące dostawać się do wody wraz z kałem zwierząt, a także ściekami bytowo gospodarczymi [3]. Występowanie bakterii chorobotwórczych w wodach wykorzystywanych do celów rekreacyjnych jest szczególnie niebezpieczne ze względów epidemiologicznych. Dostęp do zainfekowanej wody podczas sezonu wypoczynkowego ma tysiące osób, co w połączeniu z wirulencją Salmonella sp. stwarza bardzo duże zagrożenie dla ludzi oraz kreuje doskonałe warunki dla szybko rozprzestrzeniającej się infekcji [2]. Szczególny niepokój z kilku przyczyn budzi wśród specjalistów zanieczyszczenie wód bakteriami z rodzaju Salmonella. Po pierwsze mimo, iż w zbiornikach wodnych istnieje bardzo mała liczba pałeczek z rodzaju Salmonella to przedostanie się bakterii wraz z wodą do przewodu pokarmowego może skutkować infekcją. Dzieje się tak ze względu na szybkie tempo przejścia wody przez żołądek do jelita, w rezultacie czego unika ona naturalnej bariery ochronnej. Po drugie w porównaniu z innymi bakteriami allochtonicznymi, Salmonella sp. charakteryzuje się bardzo wysokim współczynnikiem przeżywalności w ekosystemach wodnych; ponadto jest bardziej odporna na stresory środowiskowe oraz wahania warunków abiotycznych, co czyni ją wysoce niebezpieczną dla zdrowia ludzi [8]. Po trzecie istnieje potwierdzona badaniami korelacja między stężeniem wskaźników zanieczyszczenia w wodzie, a realnym prawdopodobieństwem wystąpienia zaburzeń żołądkowych u kąpiących się [9]. Kolejnym problemem jest fakt stosowania ścieków, jako nawozu do użyźniania gleb znajdujących się nad ciekami wodnymi. Ich stosowanie, zwłaszcza w postaci nieoczyszczonej, wydaje się niewłaściwe ze względu na olbrzymi ładunek zanieczyszczeń mikrobiologicznych jaki ze sobą niosą. Zagrożeniem jest także brak efektywnych metod oczyszczania ścieków jeżeli liczba bakterii w ściekach sięga 103÷105 jtk/ml [10]
The majority of cases of salmonellosis reported in the journals are related with food. Nevertheless, a number of studies have investigated the incidence and survival of salmonella in rivers, coastal water and lakes. Salmonella is frequently isolated from water sources, which serve as bacterial reservoirs and may possibly aid transmission between hosts. Salmonella is constantly released into the environment from infected humans, farm animals, pets, and wildlife. Compared to other microorganisms, Salmonella sp. has high survival ratio in aquatic environments it outlives Staphylococcus aureus and even the waterborne Vibrio cholerae in surface waters and in heavily eutrophied river water. Nutrient lack, osmotic stress, visible light and temperature appear to be the abiotic factors that most negatively influence survival. The presence of Salmonella sp. in aquatic environments does not vary seasonally and is independent of water temperature. Due to its common accessibility, water is an environment which plays an essential role in spread of diseases. The aim of this study was to estimate the effect of selected temperatures on the survival rate of bacilli of the genus Salmonella, and the dynamics of quantitative changes of the bacteria in time in bathing waters used for recreation, tested under laboratory conditions. The samples for the study were collected from Borówno lake in the commune of Dobrcz, county Bydgoszcz. In the experiment it was stated that Salmonella bacilli survived longer in water at 4°C (20 weeks), as compared with 20°C (12 weeks). According to regression analysis, reduction rate of bacterial population in the present study at 4?C was 0.54 log, while at 20?C it was higher andamounted to 0.62 log. Therefore, it can be concluded that a lower temperature has a stabilizing effect on bacilli of the genus Salmonella
Źródło:
Rocznik Ochrona Środowiska; 2009, Tom 11; 935-943
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survival rate of Suid Herpesvirus (SuHV-1, Aujeszky`s disease virus, ADV) in composted sewage sludge
Autorzy:
Paluszak, Z.
Lipowski, A.
Ligocka, A.
Powiązania:
https://bibliotekanauki.pl/articles/30422.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
survival rate
Suid herpesvirus 1
herpesvirus
composted sewage sludge
Aujeszky's disease
Aujeszky's disease virus
Opis:
Sewage sludge constitutes a source of valuable biogenic raw materials, but it is a carrier of many pathogenic microorganisms and viruses. Subjected to an effective sanitization by means of the process of composting, it is suitable to use in agriculture as fertilizers. The aim of this study was to observe the survival rate of Suid Herpesvirus under the influence of the temperature alone (water bath) as well as in sewage sludge subjected to the process of composting (pile). The samples were taken at different time intervals, and the virus titres were determined. The viruses survived considerably longer under laboratory conditions: at 30°C as long as 21 days, at 40°C - 93 hours, and at 50°C - less than an hour. In the compost pile, in spite of the lack of the thermophylic phase, the total survival time of the viruses ranged from 34 to 44.5 hours, which indicates the vast importance of other physicochemical factors, apart from the temperature, contributing to virus inactivation.
Źródło:
Polish Journal of Veterinary Sciences; 2012, 15, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survival in multiple sclerosis correlates to the level of hygiene and mortality
Przeżycie w stwardnieniu rozsianym koreluje z poziomem higieny i umieralnością
Autorzy:
Cendrowski, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/1030242.pdf
Data publikacji:
2016
Wydawca:
Medical Communications
Tematy:
hygiene level
mortality
multiple sclerosis
poziom higieny
przeżycie
stwardnienie rozsiane
survival
umieralność
Opis:
Introduction: Survival of patients with multiple sclerosis is a complex variable determined by several factors. Objective of the study was to ascertain the association between the level of hygiene well as regional mortality and survival of patients with multiple sclerosis. Study design: The study of relation between variables included 14,200 multiple sclerosis patients (male – 6,025, female – 8,175) who died in the period 1981–2010 in Poland. The average survival of male and female patients with multiple sclerosis correlated to the marker of hygiene level (the late mortality in infants rate per 1,000 live births) and average, annual, sex-adjusted mortality rates for multiple sclerosis in towns and in the countryside of Poland (1981–2010). All demographic data were obtained from the Central Statistical Office in Warsaw. Results: A longer survival of male and female patients with multiple sclerosis showed a significant correlation to a higher hygiene level in Poland: r = -0.867, r = -0.902, p = 0.0001. Sex-adjusted mortality rates for women with multiple sclerosis in towns and villages were much higher than the analogous rates for men with multiple sclerosis; p = 0.0001, p = 0.019. A longer duration of life in male and female patients with multiple sclerosis demonstrated a strong, inverse correlation to a lower mortality in the countryside: r = -0.803, r = -0.630, p = 0.0001. The survival of women with multiple sclerosis did not show correlation to sex-adjusted mortality rates in towns: r = -0.126, p = 0.90. Conclusions: The higher level of hygiene was associated with the longer survival of multiple sclerosis patients. The survival of male and female patients with multiple sclerosis showed an inverse correlation to the lower mortality in rural regions. The duration of life in women did not correlate to the higher mortality in towns.
Wprowadzenie: Przeżycie chorych na stwardnienie rozsiane jest złożoną zmienną zależną od licznych czynników. Celem badania było stwierdzenie asocjacji między poziomem higieny oraz regionalną umieralnością i przeżyciem chorych na stwardnienie rozsiane. Metoda: Badanie relacji między zmiennymi objęło 14 200 chorych na stwardnienie rozsiane (mężczyźni – 6025, kobiety – 8175), którzy zmarli w latach 1981–2010 w Polsce. Przeciętne przeżycie mężczyzn i kobiet ze stwardnieniem rozsianym skorelowano z miernikiem poziomu higieny (współczynnikiem późnej umieralności niemowląt na 1000 żywych urodzeń) oraz z przeciętnymi, rocznymi, dostosowanymi do płci współczynnikami umieralności na stwardnienie rozsiane w miastach i na wsi Polski (1981–2010). Wszystkie dane demograficzne uzyskano z Głównego Urzędu Statystycznego w Warszawie. Wyniki: Dłuższe przeżycie mężczyzn i kobiet ze stwardnieniem rozsianym wykazało istotną korelację z wyższym poziomem higieny w Polsce: r = −0,867, r = −0,901, p = 0,0001. Dostosowane do płci współczynniki umieralności kobiet ze stwardnieniem rozsianym w miastach i na wsi były znamiennie wyższe niż analogiczne współczynniki u mężczyzn: p = 0,0001, p = 0,019. Dłuższe przeżycie mężczyzn i kobiet ze stwardnieniem rozsianym cechowało się mocną, odwróconą korelacją z niższą umieralnością na wsi: r = −0,803, r = −0,630, p = 0,0001. Długość życia kobiet nie korelowała z wyższą umieralnością w miastach: r = −0,126, p = 0,90. Wnioski: Im wyższy był poziom higieny, tym dłuższe było przeżycie chorych na stwardnienie rozsiane. Przeżycie mężczyzn i kobiet ze stwardnieniem rozsianym wykazało odwróconą korelację z niższą umieralnością na wsi. Długość życia kobiet nie korelowała z wyższą umieralnością w miastach.
Źródło:
Aktualności Neurologiczne; 2016, 16, 1; 4-8
1641-9227
2451-0696
Pojawia się w:
Aktualności Neurologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przeżywalność pałeczek Salmonella Enteritidis w gnojowicy świńskiej
Survival rate of Salmonella Enteritidis in pig slurry
Autorzy:
Szejniuk, B.
Budzińska, K.
Wroński, G.
Kostrzewa, M. M.
Jurek, A.
Powiązania:
https://bibliotekanauki.pl/articles/1819454.pdf
Data publikacji:
2011
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
gnojowica świńska
pałeczki Salmonella Enteritidis
pig slurry
Salmonella Enteritidis
survival
Opis:
Nawozowe wykorzystanie gnojowicy, ze względu na znaczną zawartość substancji biogennych, jest niewątpliwie ważnym czynnikiem plonotwórczym, a także przyczynia się do rozwoju cennej mikroflory glebowej. W rolniczym stosowaniu gnojowicy, obok jej dużej wartości nawozowej, bardzo istotne są również aspekty sanitarno-higieniczne [11, 17]. Gnojowica zawierać może zarówno mikroorganizmy saprofityczne, jak i liczne chorobotwórcze bakterie, wirusy, grzyby oraz jaja i oocysty pasożytów. Należy podkreślić, że gnojowica nie podlega procesowi samozagrzania, dlatego przy braku lub niewłaściwych metodach jej higienizacji może być źródłem rozprzestrzeniania się w środowisku drobnoustrojów patogennych, w tym również pałeczek Salmonella Enteritidis. Jak donosi Puchalski i wsp. [16], infekcje powodowane przez te bakterie od wielu lat stanowią w Polsce istotny problem. Pałeczki z rodzaju Salmonella mogą przeżywać w gnojowicy przez długi czas i w następstwie nawozowego jej wykorzystania prowadzić do skażenia gleb, roślin uprawnych oraz wód, co stwarza poważne niebezpieczeństwo dla zdrowia ludzi i zwierząt. Celem pracy było określenie w badaniach modelowych przeżywalności i tempa eliminacji bakterii Salmonella Enteritidis w gnojowicy pochodzącej z fermy trzody chlewnej oraz oszacowanie ryzyka sanitarno-epidemiologicznego, wynikającego z możliwości rozprzestrzeniania się testowanych mikroorganizmów w środowisku naturalnym.
The aim of this study was to estimate in a model research the survival rate and the elimination rate of the indicator bacteria Salmonella Enteritidis in slurry derived from a pigbreeding farm. Laboratory analyses were carried out at temperatures of 4 deg C and 20 deg C in two replications. A suspension of the tested bacteria Salmonella Enteritidis was introduced into slurry placed in a glass vessel with a volume of 6 liters. To do so, colonies of Salmonella bacilli from two Petri dishes were dissolved in 20 ml of Ringer's solution with peptone, and the concentration of bacteria was determined at a level of 8.0ź108 MPN/cm3, using a densitometer. The suspension obtained was added to the whole volume of slurry and then mixed thoroughly. From all the sample, 1 liter was intended for initial physico-chemical analyses. The other 5 liters were placed in two glass bioreactors 2.5 liter each, which were placed in chambers with temperatures of 4 deg C and 20deg C. Quantitative determination of the test bacteria in particular samples was made by means of the MPN method for the three tube set. The identification of Salmonella bacilli was carried out according to the norm PN-ISO 6579:1998. The survival rate of the test bacteria was determined based on an analysis of the course of linear regression lines characterizing the dynamics of quantitative changes in Salmonella Enteritidis bacilli in the examined samples. The study indicated that as early as in the first week after placing the samples in varied thermal conditions, there was a decrease in the number of tested bacteria by two powers in slurry stored at 20 deg C in comparison with the initial results. Next quantitative examination of this samples in the second week showed a slight decrease in the number of Salmonella, whereas in the fourth week their presence was no more detected. The ambient temperature 4 deg C, in turn, favored a slower elimination of the examined microorganisms. In the sub-sequent weeks of the study, a gradual, even reduction in the number of Salmonella bacilli occurred. The presence of the tested microorganisms was not observed in this sample only in the 8th week. Summing up the obtained results of the study, it should be stated that the survival rate of Salmonella Enteritidis depended on the thermal conditions in which the samples were collected. On the basis of a statistical analysis it was found that the survival time of the indicator bacteria in a sample of slurry stored at 20 deg C was 4.5 week, whereas for 4 deg C it was extended up to 10.7 week. The week's elimination rate of the test bacteria at 20 deg C amounted to 2.54 log, whereas at 4 deg C it was low and assumed a value of 0.94 log.
Źródło:
Rocznik Ochrona Środowiska; 2011, Tom 13; 2049-2059
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Does the Choice of Hospital Increase a Chance of Survival in Rectal Cancer?
Autorzy:
Pawlak, Mariusz
Morawiec, Zbigniew
Dziki, Łukasz
Morawiec, Jan
Kolacińska, Agnieszka
Dziki, Adam
Powiązania:
https://bibliotekanauki.pl/articles/1397012.pdf
Data publikacji:
2012-12-01
Wydawca:
Index Copernicus International
Tematy:
rectal cancer
prognostic factors
hospital caseload
5-year survival
local recurrence
Opis:
was to assess the impact of hospital caseload on long-term outcomes of rectal cancer patients. We posed two questions: 1. Does the number of operations carried out in the surgical department influence five year survival and local recurrence rates? 2. Does surgery alone without adjuvant therapy performed in the particular department affect long-term results? Material and methods. 215 consecutive rectal cancer patients treated in six hospitals of the Łódź district between 1994 and 1998 were enrolled into this prospective study. We analyzed patients in whom local excision, low anterior resection, abdominoperineal resection and Hartmann’s procedure were performed. 27 percent of patients received adjuvant therapy such as radio- or chemotherapy or both. Long-term results were compared between high and low volume institutions by means of local recurrence and five year survival rates. Results. In high volume departments; 69.2% of five year survival rates were obtained versus 46.6% for low volume institutions (p=0.00433). Similar differences were noted comparing local recurrence rates between the aforementioned groups: 19.7% versus 36.5%, respectively (p=0.00430). In surgically treated patients who did not receive adjuvant therapy statistically significant differences were found: 76.5% of patients operated on in high volume hospitals survived five years as compared with 42.9% for low caseload institutions (p=0.00013). Local recurrence rates were 15.5% for high caseload institutions and 38.5% for low caseload hospitals (p=0.00042). Conclusions. High volume hospitals achieved better results in rectal cancer patients with regard to five year survival and local recurrence rates. Better outcomes were also obtained in high caseload departments regarding surgically treated patients who did not receive adjuvant therapy.
Źródło:
Polish Journal of Surgery; 2012, 84, 12; 638-645
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of oscillating magnetic field pulses on the survival of selected microorganisms
Autorzy:
Lipiec, J.
Janas, P.
Barabasz, W.
Powiązania:
https://bibliotekanauki.pl/articles/24788.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Alternaria solani
oscillating magnetic field
pathogenic microorganism
microorganism
food
Erwinia carotovora
Streptomyces scabies
potato
antimicrobial effect
agricultural product
survival
Źródło:
International Agrophysics; 2004, 18, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Incidence, morbidity and 5-year survival of colorectal cancer patients in the Kujawsko-Pomorskie voivodship in 2005-2011, based on data from the National Health Fund
Autorzy:
Nowicki, Andrzej
Dahms, Sylwia
Powiązania:
https://bibliotekanauki.pl/articles/1392418.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
colorectal cancer
incidence
morbidity
5-year survival
Opis:
Introduction: Incidence, morbidity and 5-year survival rates illustrate the epidemiological situation of colorectal cancer and assess effectiveness of the treatment. In Poland, the National Health Fund is the payer of services. The data related to morbidity, incidence, and 5-year survival may be supplementary to the epidemiological data of the National Cancer Registry. Objective: Analysis of services granted by NHF in Bydgoszcz to persons with diagnosed colorectal cancer in 2006–2011 including the assessment of incidence, morbidity and 5-year survival of the population in the Kujawsko-Pomorskie province. Material and methods: The study analyzed the services recorded in the database of the National Health Fund in Bydgoszcz in 2006-2011 given to patients with colorectal cancer. The Kaplan-Meier method and the gambling rate were used to determine the probability of survival. Results: In 2006–2011, men were offered 10.1% more services than women. The most frequent services regarded colorectal cancer (48.9%), rectal cancer (43.8%) and esophageal cancer (7.2%). In total, 50410 services were provided. Despite increase in the number of women in the population, 388 more men died than women. The probability of survival was 46.8 % and 42.6% for men and women, respectively, furthermore 41.8%, 44.2% and 48.9% for colon cancer and esophageal and rectal folds cancer, respectively. Conclusions: In the Kujawsko-Pomorskie province during the period of 2006–2011, the number of diagnosed colorectal cancers increased as did the overall number of services provided. There was also a downward trend for the total number of services granted in relation to the increase in the number of new diagnosed cases. Incidence and morbidity rates were variable, gradually increasing in subsequent years and amounted to 59/100000 and 67/100000, 355/100000 and 408/100000 in 2010 and 2011, respectively. The probability of 5-year survival was 45.2%. Diagnosis of a disease in patients above 69 years of age increased the likelihood of death.
Źródło:
Polish Journal of Surgery; 2018, 90, 4; 1-8
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survival of larvae of Nippostrongylus brasiliensis [Nematoda] in solutions of toxic substances
Autorzy:
Gadomska, K
Zakrzewska, K.
Powiązania:
https://bibliotekanauki.pl/articles/839605.pdf
Data publikacji:
1997
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
toxic substance
Nematoda
lead
cadmium solution
copper solution
Nippostrongylus brasiliensis
environment pollution
cadmium
zinc
copper
larva
zinc solution
lead solution
survival
Opis:
The aim of this study was to determine the action of zinc, cooper, lead and cadmium compounds upon N. brasiliensis invasive nematode larvae. The tested larvae were kept in ZnCl2, CuCl2 , Pb(NO3)2 and CdCl2 solutions. The concentrations of toxic substances applied for the study corresponded with level of environmental pollulion. All toxins reduced live - space of larvae. In control group they survived about 69 days. In solutions of the Zn, contaminated with 10, 50, 100 and 200 ppm of toxic substance, they survived 42, 16, 14 days and 72 hours. In solution of Cu, contaminated with 5, 10, 50 and 200 ppm of toxin, live - space was reduced to 51, 21, 7 days and 54 hours, respectively. Lead reduced live - space of larvae to 26 days already at the low concentration of 10 ppm and in all higher concentrations (20, 50 and 200 ppm) their survival changed unsignificantly (to 22 days). In solution of Cd, contaminated with 0.1 and 0.3 ppm larvae died after 39 and 17 days, respectively, white at higher concentrations of this toxin (3 and 10 ppm) larvae survived only 54 and 30 hours, respectively.
Źródło:
Annals of Parasitology; 1997, 43, 1
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the pH of the cultivation medium on survival and development of stage III larvae of Anisakis simplex
Autorzy:
Dziekonska-Rynko, J
Rokicki, J.
Jablonowski, Z.
Bialowas, K.
Powiązania:
https://bibliotekanauki.pl/articles/837321.pdf
Data publikacji:
2001
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
parasite
cultivation medium
stage
development
Anisakis simplex
larva
pH
survival
Opis:
The cultivation was done on Eagle's media as well as Eagle's media enriched with the supplement of 10 and 20% of bovine serum. In the media without serum the larvae lived significantly shorter and did not get through molting. They lived the longest and came through molting the fastest in the media with pH 2.0 supplemented with 20% SB. In the media with the pH 4,0 and 7.3 the larvae lived significantly shorter and only a small proportion reached stage IV.
Źródło:
Annals of Parasitology; 2001, 47, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the pH of the cultivation medium on survival and development of stage III larvae of Anisakis simplex
Autorzy:
Dziekońska-Rynko, J.
Rokicki, J.
Jabłonowski, Z.
Białowąs, K.
Powiązania:
https://bibliotekanauki.pl/articles/2148091.pdf
Data publikacji:
2001
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
parasite
cultivation medium
stage
development
Anisakis simplex
larva
pH
survival
Opis:
The cultivation was done on Eagle's media as well as Eagle's media enriched with the supplement of 10 and 20% of bovine serum. In the media without serum the larvae lived significantly shorter and did not get through molting. They lived the longest and came through molting the fastest in the media with pH 2.0 supplemented with 20% SB. In the media with the pH 4,0 and 7.3 the larvae lived significantly shorter and only a small proportion reached stage IV.
Źródło:
Wiadomości Parazytologiczne; 2001, 47, 3; 317-322
0043-5163
Pojawia się w:
Wiadomości Parazytologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differences in growth, survival and phenology in Quercus rubra and Q. ellipsoidalis seedlings
Autorzy:
Gailing, O.
Powiązania:
https://bibliotekanauki.pl/articles/41183.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Opis:
Related oak species with different ecological requirements often hybridize where they co-occur. Even though interspecific gene flow is consideredto be common in closely relatedoaks, species identity in sympatric oak species with different local adaptations is generally maintained with a low number of hybrids andintrogressive forms in the adult tree generation. Quercus rubra and Q.ellipsoidalis offer a goodmod el to study characters that are related to different local adaptations and reproductive isolation of the species. Both species are interfertile, but grow in different micro-environments with Q.ellipsoidalis as the most drought tolerant red oak species occurring often on very dry sites. In an earlier study, genetic assignment analysis at 15 highly variable microsatellite markers revealeda low number of hybrids (0–2%) andintrogressive forms (0–4%) in neighboring Q.ellipsoidalis and Q.rubra populations in both the adult tree and seedling generation. In the present study, pronounced differences in growth and survival, the timing of bud burst and leaf senescence between seedlings of both species in a common garden experiment suggested reproductive isolation between species and genetic differences in fitness-related traits. Future studies should focus on the analysis of fitness traits in parental environments using reciprocal transplant studies
Źródło:
Dendrobiology; 2013, 70
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Niezrównoważony rozwój cywilizacji postindustrialnej ze względu na ryzyko i szansę na przeżycie
Unsustainable development of post-industrial civilization due to the risk and chance of survival
Autorzy:
Sztumski, Wiesław
Powiązania:
https://bibliotekanauki.pl/articles/1181277.pdf
Data publikacji:
2020
Wydawca:
Państwowa Wyższa Szkoła Zawodowa w Raciborzu
Tematy:
post-industrial civilization
threats
risk
chance
survival
immunity
mental resilience
Opis:
The article includes the author's considerations on risk of survival and chance to survive of \ individual persons and the human species in conditions of progressive environmental degradation because of the progress of post-industrial civilization, especially the Western one. The development of this civilization is driven by the rapid advances in knowledge and technology, but above all by activities for maximum economic growth and its derivatives - unlimited growth in production, sales and consumption. So, naturally, it is accompanied by excessive destruction of natural resources and degradation of the natural environment, as well as of degradation of the social, cultural and spiritual environment. On the one hand, the consequence of the progress of Western civilization is the growing threat to human health, and thus the increasing risk of survival. On the other hand, thanks to this progress, they improve living conditions and comfort as well as the possibilities of curing many diseases; thus, they increase the chances to survive. The problem, however, is that this increase in risks and chances is not equivalent as they appear many more threats than chances. As a result, this imbalance is getting bigger. Political and economic decision-makers, who can hardly be suspected of a lack of knowledge about environmental threats, are primarily driven by profit maximization and therefore they ignore the appeals from environmentalists. Therefore, since the last decades of the twentieth century, it progress the development of "economic society". It is made up of individuals called "Homo oeconomicus" - fanatical followers of God Mammon. There are serious concerns that it will soon end either with the extinction of humanity or with the collapse of Western civilization. And what happens depends on whether further social evolution will follow economic or other (cultural or ecological) criteria, whether the most important goal will be to improve the quality of life and enrichment, or to delay the extinction of humanity as a result of the transformation of "economic society" into "Cultural society"
Źródło:
Eunomia – Rozwój Zrównoważony – Sustainable Development; 2020, 2(99); 9-18
1897-2349
2657-5760
Pojawia się w:
Eunomia – Rozwój Zrównoważony – Sustainable Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of disease free survival in cutaneous melanoma patients subject to sentinel lymph node biopsy
Autorzy:
Łobaziewicz, Wojciech
Szloch, Joanna
Wajda, Justyna
Legkiy, Oleksandr
Marczyk, Elżbieta
Wysocki, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/1391682.pdf
Data publikacji:
2020
Wydawca:
Index Copernicus International
Tematy:
cutaneous melanoma
disease free survival
lymphadenectomy
sentinel lymph node biopsy
SNB
Opis:
Introduction: Cutaneous melanoma is estimated for 2% of malignant neoplasms occurring in humans. It is characterized by a high level of malignancy and low sensitivity to cytostatic drugs. The incidence of cutaneous melanoma is increasing in Poland. The lymphatic system is the most common route of dissemination of this neoplasm. The appearance of a sentinel node biopsy technique has made it possible to identify patients with a regionally advanced disease. It is a minimally invasive method with a small percentage of complications. Aim: Analysis of disease free survival (DFS) in cutaneous melanoma patients with sentinel lymph node biopsy. Material and methods: The analysis included 222 patients with cutaneous melanoma treated in the Department of Oncological Surgery in 2010–2015, who underwent a sentinel node biopsy. The study group consisted of 136 women and 86 men, the average age of patients was 59 years. Patients were qualified for sentinel node biopsy based on clinical evaluation and ultrasound of regional lymph nodes. The average follow-up was 25.1 months. About 2 hours before surgery, patients received a radioisotope, then lymphoscintigraphy SPECT was performed. Additionally, they were administered the Patent Blue dye in the operating room. Results: The sentinel node was identified in 217 patients (98%), and the average sentinel nodes were 2.25. Twenty-seven patients (12%) had a metastasis in sentinel nodes. In this group, the duration of symptom free survival was significantly shorter. Sentinel node status and age of the patient were independent factors affecting the prognosis of disease free survival. Conclusions: Sentinel node biopsy is a precise method to identify patients with cutaneous melanoma who have metastasis to regional lymph nodes, as well as the most important prognostic factor.
Źródło:
Polish Journal of Surgery; 2020, 92, 3; 15-21
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dłuższe przeżycie mężczyzn ze stwardnieniem rozsianym wiąże się z mniejszym rozpowszechnieniem palenia papierosów
Longer survival of multiple sclerosis males is associated with lower prevalence of smoking
Autorzy:
Cendrowski, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/437598.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
stwardnienie rozsiane
palenie papierosów
przeżycie
płeć
multiple sclerosis
smoking
survival
gender
Opis:
Wprowadzenie. Przeżycie chorych na stwardnienie rozsiane (SM) jest zmienną zależną od naturalnej historii choroby, współistniejących chorób i stylu życia. Celem badania było określenie relacji między regularnym paleniem papierosów (PP) i długością życia chorych na SM w Polsce. Materiał i metoda. Badanie przeprowadzono w kohorcie 11 666 chorych z SM (M – 4703, K – 6963), którzy zmarli w latach 1982–2011. Analizowano relację między rocznymi, dostosowanymi do płci współczynnikami PP w ogólnej populacji i rocznymi przeciętnymi długościami życia mężczyzn i kobiet z SM w latach 1982–2011. Demograficzne dane dotyczące zmarłych chorych z SM otrzymano z Głównego Urzędu Statystycznego. Informację o rozpowszechnieniu PP uzyskano z Centrum Onkologii i Centrum Badania Opinii Społecznej w Warszawie. Relacje pomiędzy zmiennymi badano testem Studenta i testem Pearsona. Wyniki. Przeciętna długość życia mężczyzn i kobiet z SM wzrosła w Polsce w 1997–2011 r. do 55.3 (SD 2.02) i 56.1 (SD 1.65) lat, w porównaniu do 52.2 (SD 1.14) i 52.7 (SD 1.52) lat w okresie 1982–1996; test Studenta: p < 0.0002, p < 0.0001. Rozpiętość życia poprawiła się przeciętnie o 7,5 lat u mężczyzn i 9.2 lat u kobiet. Dłuższe przeżycie mężczyzn z SM wykazała istotną, odwróconą asocjację z niższym rozpowszechnieniem PP wśród mężczyzn w ogólnej populacji; r = –0.775, p < 0.0001. Poprawa przeżycia kobiet z SM nie korelowała z rozpowszechnieniem PP wśród kobiet w ogólnej populacji; r = 0.275, p = 0.316. Regularne PP nie wykazało zależności z przeżyciem kobiet z SM w Polsce.Wnioski. Długość życia chorych z SM istotnie wzrosła w ciągu blisko 3 dekad w Polsce. Dłuższe przeżycie mężczyzn z SM wykazało odwróconą asocjację z niższym rozpowszechnieniem PP w ogólnej populacji mężczyzn. Poprawa długości życia kobiet z SM nie korelowała z rozpowszechnieniem palenia papierosów w ogólnej zbiorowości kobiet.
Introduction. Survival of multiple sclerosis (MS) patients is variable determined by natural history of the disease, coexisting diseases and lifestyle. Method. Aim of the study was to ascertain relation between regular cigarette smoking and life duration of MS patients in Poland. The study was performed in cohort of 11 666 MS patients (M – 4703, F – 6963), who died in the years 1982- 2011. Relation between annual, sex-adjusted prevalence rates of smoking in the general population and annual averages of male and female survival in MS in the years 1982-2011 was analysed in the study. Demographic data concerning deceased MS patients were obtained from the General Statistical Office. Information pertaining to prevalence of smoking in the general population was received from the Centre of Oncology and the Centre of Inquiry into the Public Opinion in Warsaw. Relations between variables were performed using test by Student or Pearson. Results. Average duration of life in men and women with MS increased in Poland in 1997–2011 to 55.3 (SD 2.02) yr. and 56.1 (SD 1.65) yr. as compared to 52.2 (SD 1.14) and 52.7 (SD 1.52) yr. in 1982–1996; Student test: p<0.0001 and p<0.0002. Life span of men and women with MS improved on average by 7.5 yr. and 9.2 yr. Longer survival in MS men showed significant inverse association with lower prevalence of smoking in the Polish males; r = –0.775, p<0.0001. Improvement of survival in MS women did not correlate with prevalence of smoking among the Polish females: r = –0.225, p = 0.316. Regular smoking bore not, relation to MS female survival in Poland. Conclusions. Life duration of MS patients significantly increased during nearly 3 decades in Poland. Longer survival in MS males was inversely associated with lower prevalence of smoking in the Polish males. Longer life duration in MS women did not correlate with prevalence of smoking in the Polish women.
Źródło:
Medical Review; 2014, 1; 7-15
2450-6761
Pojawia się w:
Medical Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth and survival of prebiotic lactic acid bacteria in the presence of heterocyclic aromatic amines
Wzrost i przeżywalność bakterii probiotycznych w obecności heterocyklicznych amin aromatycznych
Autorzy:
Nowak, A.
Powiązania:
https://bibliotekanauki.pl/articles/1201220.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Technologów Żywności
Tematy:
prebiotic
lactic acid bacteria
bacterial growth
bacteria
survival
heterocyclic aromatic amine
Lactobacillus
Opis:
Heterocyclic aromatic amines (HCAs) ingested with heat-processed meat can contribute to colon cancer development. Those compounds interact with human intestinal microbiota. Under the research study, the effect was analyzed of IQ, MeIQx, or PhIP amines (each of them at 5 and 25 μg/ml concentration rates) on the growth (24 h cultivation in MRS broth) and survival (incubation for max. 120 h in a phosphate buffer) of four probiotic strains of Lactobacillus. It was found that no concentration level of the HCAs analyzed impacted the growth of bacteria. A higher concentration level of IQ (25 μg/ml) decreased the survival of Lb. casei 0900 after a 24 h period of incubation. MeIQx and PhIP also decreased the survival of Lb. paracasei 0919 after a 24 h period of incubation. Totally, the count of living cells decreased from 109 cfu/ml to 108 cfu/ml. Three strains were absolutely resistant to PhIP during a 120 h period of incubation. The results obtained prove that the probiotic bacteria studied maintain their high viability in the presence of the amines tested and, probably, they can bind together with them in human colon and, then, the aggregated particles are removed from the human body.
Heterocykliczne aminy aromatyczne (HCA) spożywane wraz z termicznie przetworzonym mięsem mogą przyczyniać się do rozwoju raka jelita grubego. W pracy badano wpływ amin IQ, MeIQx oraz PhIP (każda w stężeniu 5 i 25 μg/ml) na wzrost (24-godzinna hodowla w pożywce MRS) i przeżywalność (do 120 h inkubacji w buforze fosforanowym) czterech szczepów probiotycznych z rodzaju Lactobacillus. Zaobserwowano, że żadne z badanych stężeń HCA nie wpływało na wzrost bakterii. Wyższe stężenie IQ (25 μg/ml) obniżało żywotność szczepu Lb. casei 0900 od 24 h inkubacji. Aminy MeIQx i PhIP obniżały żywotność Lb. paracasei 0919 również od 24 h inkubacji. Generalnie liczba żywych komórek obniżyła się z 109 jtk/ml do 108 jtk/ml. Trzy szczepy były całkowicie oporne na obecność PhIP podczas 120 h inkubacji. Uzyskane rezultaty wskazują, że badane szczepy probiotyczne zachowują wysoką żywotność w obecności testowanych amin i prawdopodobnie mogą wiązać się z nimi w jelicie grubym, po czym te zagregowane cząstki usuwane są z organizmu.
Źródło:
Żywność Nauka Technologia Jakość; 2014, 21, 3
1425-6959
Pojawia się w:
Żywność Nauka Technologia Jakość
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mutagenic effect on seed germination, seedling growth and seedling survival of pigeon pea (Cajanus cajan (L.) Millsp)
Autorzy:
Ariraman, M.
Gnanamurthy, S.
Dhanavel, D.
Bharathi, T.
Murugan, S.
Powiązania:
https://bibliotekanauki.pl/articles/11271.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
mutagenic effect
seed germination
seedling growth
seedling survival
pigeon pea
Cajanus cajan
Opis:
In the present investigation the seeds of Pigeon pea (Cajanus cajan (L.) Millsp) were treated with different doses of gamma radiation (05KR, 10KR, 15KR, 20KR, 25KR, 30KR, 35KR, 40KR, 45KR, and 50KR) and concentration of Ethyl Methane Sulphonate (05mM, 10mM, 15mM, 20mM, 25mM, 30mM, 35mM, 40mM, 45mM, and 50mM) for studying seed germination, seedling height, (shoot and root), seedling injury, seedling vigour index, and seedling survival of plants at 30th day. The seed germination percentage was decreased with increased in the concentration/doses when compared to control. The LD50 (Lethal dose) value was determined based upon the seed germination percentage. The 50 percentage of seed germination and reduction was observed in 20KR of gamma rays and 25mM of EMS and it is considered as LD50 value for both the treatments. The decrease in seed germination was more prominent with gamma rays than that of EMS treatments. The seedling parameters of gamma rays and EMS treated seedlings were progressively decreased with increase dose/concentration in all mutagenic treatments when compared to control. The maximum seedling parameters were observed in 05KR of gamma rays and 05mM of EMS. Minimum seedling parameters were observed in 50mM of EMS and 50KR of gamma rays respectively.
Źródło:
International Letters of Natural Sciences; 2014, 16
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badanie ubóstwa z zastosowaniem nieparametrycznej estymacji funkcji przeżycia dla zdarzeń powtarzających się
Poverty Study Using Nonparametric Estimation of Recurrent Survival Function
Autorzy:
Sączewska-Piotrowska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/422645.pdf
Data publikacji:
2015
Wydawca:
Główny Urząd Statystyczny
Tematy:
ubóstwo
funkcja przeżycia
zdarzenia powtarzające się
nieparametryczna estymacja
poverty
survival function
recurrent events
nonparametric estimation
Opis:
W artykule przeprowadzono analizę czasu trwania gospodarstw domowych w sferze ubóstwa oraz w sferze poza ubóstwem. W tym celu wykorzystano estymatory funkcji prze-życia dla zdarzeń powtarzających się: estymator Wanga-Changa oraz dwa estymatory za-proponowane przez Peñę, Strawdermana i Hollandera (IIDPLE oraz FRMLE). Na podstawie uzyskanych wyników można stwierdzić, że prawdopodobieństwo przeżycia gospodarstw domowych w sferze poza ubóstwem przez długi czas jest większe niż w przypadku przeżycia w sferze ubóstwa. Bazując na graficznej metodzie uznano, że najlepszym estymatorem funkcji przeżycia w sferze ubóstwa i w sferze poza ubóstwem jest FRMLE. Oznacza to, że założenie o niezależności i takich samych rozkładach czasów oczekiwania na wystąpienie kolejnych zdarzeń w obrębie gospodarstw domowych nie jest słuszne.
The article analyses households’ poverty and nonpoverty duration. For this purpose survival function estimators for recurrent events were used: Wang-Chang estimator and two estimators proposed by Peña, Strawderman and Hollander (IIDPLE and FRMLE). We can conclude that survival probability for a long time out of poverty is greater than in the case of survival in poverty. Based on the graphical method we can conclude that the best estimator of survival in poverty and out of poverty is FRMLE. It means that we cannot assume that interoccurrence times within households are independent and identically distributed.
Źródło:
Przegląd Statystyczny; 2015, 62, 1; 29-51
0033-2372
Pojawia się w:
Przegląd Statystyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of substratum type on attachment and survival of Dreissena polymorpha (Bivalvia)
Autorzy:
Kobak, J.
Januszewska, M.
Powiązania:
https://bibliotekanauki.pl/articles/83952.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Opis:
We studied the attachment strength of Dreissena polymorpha on nine artificial substrata in the laboratory. The highest attachment strength (0.46 N) was found on resocart (phenoplast plastic). It was lower on aluminium, acrylic, PVC, rubber and glass (listed in the order of decreasing strength), and the lowest on zinc, Penaten cream coating and copper. Apart from reducing adhesion, copper substratum caused also heavy mortality of the mussels. Further experiments, in which mussels were exposed on resocart surfaces in the presence of the examined materials (thus being influenced only by waterborne substances released by them), revealed that zinc and copper inhibited mussel attachment primarily by means of ions released to the water column. In the case of Penaten coating, the impact of its surface properties upon mussels seemed to be more important than waterborne cues.
Źródło:
Folia Malacologica; 2006, 14, 2
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bariery uczestnictwa w surwiwalu jako jednym z typów zajęć outdoor
Barriers of participation in survival as one of the outdoor types of activities
Autorzy:
Płoskonka, Przemysław
Powiązania:
https://bibliotekanauki.pl/articles/465119.pdf
Data publikacji:
2017-06-14
Wydawca:
Akademia Wychowania Fizycznego we Wrocławiu
Tematy:
surwiwal
aktywność turystyczno-rekreacyjna
bariery uczestnictwa
survival
tourist and recreation activity
barriers to participation
Opis:
Cel badań. Celem ogólnym badań było poznanie uwarunkowań uczestnictwa w surwiwalu jako formie działalności turystyczno-rekreacyjnej oraz określenie ich wpływu na rozpoczęcie i kontynuację aktywności surwiwalowej. W prezentowanym artykule autor skupił się na jednym z celów szczegółowych badań, jakim było poznanie barier uprawiania surwiwalu oraz ich znaczenie w zależności od wybranych zmiennych społeczno-demograficznych i doświadczenia w tym zakresie. Materiał i metody. Badania przeprowadzono przy użyciu samodzielnie przygotowanego kwestionariusza ankiety. Podstawę opracowania stanowiły opinie 594 respondentów. Badano uczestników wybranych imprez surwiwalowych (wybranych członków stowarzyszeń i organizacji surwiwalowych oraz zarejestrowanych członków serwisów zajmujących się tematyką surwiwalu). Wyniki. Najliczniejsza grupa badanych za największą barierę uznała brak czasu wynikający z obowiązków zawodowych, szkolnych oraz rodzinnych. Indeks braku czasu uzyskał najwyższy wynik wśród sześcioczynnikowej skali barier. Barierami mającymi związek z płcią okazały się koszty, które istotnie większe znaczenie miały dla kobiet niż dla mężczyzn. Dla ogółu badanych (niezależnie od płci) stwierdzono wysoko istotną korelację ujemną pomiędzy barierą izolacja społeczna a wiekiem. Wnioski. Surwiwal jest silnie determinowany budżetem czasu wolnego, który związany jest ze średnim czasem trwania wszystkich zajęć w ciągu doby i w konsekwencji dostępnością czasu wolnego przeznaczonego na rekreację, a także dostępnością terenów uprawiania. Znaczącą barierę stanowi problem ze znalezieniem innych osób podzielających zainteresowanie surwiwalem. Koszty zakupu sprzętu i ekwipunku nie stanowiły istotnej przeszkody w podjęciu aktywności.
Background. A growing interest in survival as a tourist and recreational activity raises the need for empirical research into this issue. Unfortunately, a vast majority of authors focus on the technical aspects of survival, ignoring the determinants of this activity. The few existing studies are usually based on observation and involve small samples. This paper will help complement the body of knowledge concerning this issue. Material and methods. Following a pilot study, the study proper was conducted with the use of a questionnaire prepared by the author. The analysis was based on the opinions of 594 respondents. The research was conducted during randomly selected survival events, among randomly selected members of survival societies and organisations and users of websites dedicated to survival. Result. The largest group of respondents identified lack of time resulting from professional, school, academic, and family duties as the greatest barrier. The lack-of-time index obtained the highest score in the six-factor barrier scale. Gender-related barriers were costs, which turned out to be of significantly higher importance for women than for men. For all respondents, and in the groups of men and women independently, a highly significant negative correlation was found between the social isolation barrier and age. Conclusions. Survival is strongly determined by the accessibility of leisure time and appropriate environment. The problem to find other people engaged in survival activity seems a significant barrier. The costs of equipment do not constitute a substantial barrier to participation.
Źródło:
Rozprawy Naukowe Akademii Wychowania Fizycznego we Wrocławiu; 2017, 57; 82-90
0239-4375
Pojawia się w:
Rozprawy Naukowe Akademii Wychowania Fizycznego we Wrocławiu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Utilization of Liquid Commercial Probiotics to Improve Survival and Growth of Siamese Catfish Fingerlings (Hypopthalmus pangasionodon (Sauvage, 1878))
Autorzy:
Meidi, Wulan Sutiandari
Lili, Walim
Iskandar, Iskandar
Suryadi, Ibnu Bangkit Bioshina
Powiązania:
https://bibliotekanauki.pl/articles/1076704.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Hypopthalmus pangasionodon
Siamese catfish
feed convertion ratio
growth rate
probiotics
survival rate
Opis:
The purpose of this research is to determine the effect of liquid commercial probiotics usage on improving the survival rate and growth of Siamese catfish fingerlings. This research was conducted on March to May 2018, at Building 4 Laboratory, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran. This study used an experimental method with Completely Randomized Design (CRD), which consisted of four treatments and three replications. The treatments are feed without the addition of probiotics, and feed with additional probiotics at doses of 2, 4, and 6 ml / kg of feed. The parameters observed were survival rate, absolute weight, absolute length, feed conversion ratio, proximate test analysis and water quality. Data on absolute weight, absolute length, feed conversion ratio and survival rate were analyzed using analysis of variance, while nutrition changes of fish feed and water quality were analyzed descriptively. The results showed that the best addition of probiotics for feed, is with probiotic doses of 2 ml / kg of feed, which resulted in a 100% survival rate, an absolute weight value of 1.03% and a feed conversion ratio of 1.13.
Źródło:
World News of Natural Sciences; 2019, 24; 54-63
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
„Bez przetrwania przyrody nie ma przetrwania ludzkiego”. Nowy paradygmat ekologiczny. Z cyklu „Ekologia i Prawo”
„Without the Survival of the Natural Environment it will not be the Survival of Humans” - a New Ecological Paradigm. The Cycle „Ecology and Low”
Autorzy:
Kasprzak, Sylwester
Powiązania:
https://bibliotekanauki.pl/articles/1871997.pdf
Data publikacji:
2019-10-25
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Opis:
In our contemporary society there is a great concern for the earth and for the future of the human condition. For many people, the realization that we are the cause of the deterioration of our planet is a recent discovery. Our problems are related to growth in human numbers, to our voracious use of natural resources, and to economic decisions seeking short-term gains that do not carefully consider social and environmental implications. The answers are required to such fundamental questions as ..What is our responsibility to future generations of humans, to our own generation, and to the other earth-bound organisms?” Our ability to control and shape the natural environment to human needs seems to be without limit. Humankind is subtly but cumulatively destroying the very life-support systems upon whose all the human's function are ultimately dependent. There is a very sad situation in the natural World. The evidence was easy to find: streams and rivers were polluted, palls of smog shrouded our cities; garbage and ugliness were commonplace. With this article we would like to begin the cycle of publications for the theme of ecology and the envirornmental protection especially in the light of law and ethics. We should speak very often about this kind of problems. In this material we presented common relations between ecology, ethics and law. For example we showed five elements in the ecological ethics. They are as follow: 1) the commandment of good attitude and estimate to the natural environment; 2) the possitive critical opinion with regard to the ideology of the growth; 3) limit and ascetic of the consumption; 4) the quality of life; 5) relation between ecology and common good. We need in the human life a little limit to growth of our social conditions therefore that mankind is leading the style of life to much satisfying for many people in many of the areas of the world. Because we used the natural resources very much, now we need a new orientation in our life and should find a new way of humankind progress in the future, without destroying nature and ecosystems. A spate of environmental problems arc viewed as being out of control. Through legislation, international agreements, and individual and corporate actions, a massive effort has been made to improve the quality of our air. water, food. land, the situation of animals, forest destruction, pollution, soil, and life in general. Finally we would like to present the title of our article: The cycle ..Ecology and Law": ..Without the survival of the natural environment it will not be the survival of humans" - a new ecological paradigm. In this article we presented very important problems which arc connected with a global situation on the field in economics, ethics, ecology and environmental protection. We will be continuing our research and work on this subject in the future.
Źródło:
Roczniki Nauk Prawnych; 1998, 8; 85-106
1507-7896
2544-5227
Pojawia się w:
Roczniki Nauk Prawnych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survival potential of Phytophthora infestans sporangia in relation to environmental factors and late blight occurrence
Autorzy:
Olanya, O.M.
Anwar, M.
He, Z.
Larkin, R.P.
Honeycutt, C.W.
Powiązania:
https://bibliotekanauki.pl/articles/65009.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
survival
Phytophthora infestans
sporangia
environmental factor
late blight
occurrence
climate variability
potato
tomato
Opis:
Potato is an important crop globally and late blight (Phytophthora infestans) often results in severe crop loss. The cost for late blight control can be in excess of $210 million in the United States. We utilised a non-parametric density distribution analysis of local temperature (T) and relative humidity (RH), from 2005 to 2009, to assess and validate sporangia survival potential using survival model and late blight risks during the potato cropping season at Presque Isle, in the northern part of the state of Maine, USA. Modelbased analyses showed that ambient temperatures of 3−30°C and RH values of 45−100% were conducive for sporangia survival. Disease outbreaks and risk periods coincided with a high sporangia survival probability (15−35%). Due to the omission of solar radiation (SR) in the computation of survival potential in previous research, we applied a Cox proportional model to estimate the probability of sporangia survival [i.e. hazard at a specific time H(t)] as a function of baseline hazard (H0) and the influencing parameters. The model is: H(t) = H0(t) × exp(0.067ET + 0.138T + 0.083RH + 0.001SR) where ET is exposure time. The survival model indicated that RH (β = 0.083) and T (β = 0.138) were significant (p < 0.05) factors in sporangia survival in comparison to SR (β = 0.001). The hazard ratio, indicative of sporangia survival risk, varied with the predictors. For the unit increase of T, sporangia survival hazard increased by 1.148 times. The Cox model and sporangia hazard probabilities can be used for short-term disease forecasts based on the risk period most conducive for pathogen survival and targeted fungicide applications for optimum late blight management.
Źródło:
Journal of Plant Protection Research; 2016, 56, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of provenance transfer on the growth and survival of Picea abies provenances
Autorzy:
Krajmerova, D
Longauer, R.
Pacalaj, M.
Gomory, D.
Powiązania:
https://bibliotekanauki.pl/articles/41447.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
provenance experiment
global warming
adaptation
growth
survival
Opis:
Two provenance experiments with Norway spruce in Slovakia were used to reveal trends in the behaviour of provenances after their transfer. Regressions between the average height and survival of provenances and the differences between the geographic and selected climatic characteristics of the place of origin and provenance plots were significant for most of the characteristics tested. Data from the experiment with Polish and Slovak provenances from 1972 indicated that transfer into warmer regions with a longer vegetation period results in improved height growth and survival, with the exception of survival at initial stages. The experiment from 1964 with a broader altitudinal range of provenance plots, but with unadjusted latest measurements at individual plots available, revealed the best height growth of Slovak Norway spruce provenances after their transfer to sites with the mean annual temperature approximately 1°C higher and with the vegetation period 12 days longer than at places of origin. Transfer into lower altitudes, a warmer climate and a longer vegetation period improved survival. In both experiments, transfer to areas with increased rainfall had a negative effect on growth, which is probably associated with the fact that provenances are not able to exploit additional precipitation for the growth in areas with a colder climate and a shorter vegetation period.
Źródło:
Dendrobiology; 2009, 61 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Youngest occurrences of rhomaleosaurid plesiosaurs indicate survival of an archaic marine reptile clade at high palaeolatitudes
Autorzy:
Benson, R.B.J.
Zverkov, N.G.
Arkhangelsky, M.S.
Powiązania:
https://bibliotekanauki.pl/articles/21817.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Plesiosauria
Rhomaleosauridae
biogeography
Jurassic
Callovian
occurrence
rhomaleosaurid plesiosaur
survival
marine reptile
paleontology
United Kingdom
Russia
Opis:
Rhomaleosaurid plesiosaurians were a common and ecologically significant component of Early Jurassic marine faunas, primarily as large-bodied predators. They declined in abundance and made their last fossil appearance in the Middle Jurassic. However, the geographic pattern of rhomaleosaurid extinction has thus far been obscured by spatial bias in the Middle Jurassic marine reptile fossil record, which is strongly focussed on low-latitude European assemblages. We report two rhomaleosaurid specimens from the Callovian (late Middle Jurassic) of the UK and Russia. Along with Borealonectes from Arctic Canada, these are the youngest-known occurrences of rhomaleosaurids. The UK specimen is the first identified from the Callovian of Europe, despite intensive fossil sampling over almost 200 years and the recovery of hundreds of other plesiosaurian specimens. Its discovery indicates that rhomaleosaurids were present, but extremely rare, at low palaeolatitudes of the Callovian. The Russian specimen is one of relatively few marine reptile specimens from its mid-palaeolatitude assemblage, as is also true of Borealonectes, which occurs in a high-palaeolatitude marine assemblage. Furthermore, we suggest that a mid latitude southern hemisphere occurrence from the Callovian of Argentina, previously referred to Pliosauridae, in fact represents a rhomaleosaurid. These findings suggest that rhomaleosaurids were actually common elements of mid-high palaeolatitude marine faunas, indicating a geographically staggered pattern of declining rhomaleosaurid abundance, and demonstrating the apparent persistence of an archaic marine reptile group in cool, mid-high latitude environments of the Middle Jurassic. It is therefore possible that sustained Middle-Late Jurassic global warming accelerated the ultimate extinction of rho-maleosaurids. Our findings suggest that widening the geographical breadth of fossil exploration could considerably enhance current knowledge of Jurassic marine reptile evolution.
Źródło:
Acta Palaeontologica Polonica; 2015, 60, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Long-term response with everolimus for metastatic renal cell carcinoma refractory to sunitinib-sorafenib sequence
Autorzy:
Kardas, Joanna
Buraczewska, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1065215.pdf
Data publikacji:
2015
Wydawca:
Medical Education
Tematy:
clear cell carcinoma
mTOR inhibitor (mTORi)
metastatic renal cell cancer
overall survival (OS)
progression free survival (PFS)
tyrosine kinase inhibitor (TKI)
Opis:
We presented a 39-year-old male who developed progressive cancer disease 4 years after nephrectomy due to clear cell carcinoma. He was diagnosed with locally reccurence and metastases to the liver, spleen and abdominal muscles. The patient was treated with sunitinib and then after disease progression – with sorafenib. We observed 18 months of cancer control (TKI-TKI). After second progression everolimus was administered. Third line everolimus therapy helped to achieve durable stable disease with PFS 46 months till now (May 2015). The patient remains in very good performance status with minimal toxicity from the regimen. This case illustrates a long term survival for patients with metastatic renal cell carcinoma, a malignancy with historically poor prognosis. The use of three sequential targeted therapies (TKI – TKI – mTORi) helped to achieve over 5 years or disease control, with rarely seen long-term response to third line treatment (mTORi) – where stabilization is good enough. We discussed therapeutic strategies in metastatic renal cell carcinoma according to the literature and therapeutic possibilities in Poland.
Źródło:
OncoReview; 2015, 5, 2; A71-75
2450-6125
Pojawia się w:
OncoReview
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth, survival, density, biomass partitioning and morphological adaptations of natural regeneration in Fagus sylvatica. A review
Autorzy:
Jarcuska, B
Powiązania:
https://bibliotekanauki.pl/articles/41018.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
beech
Fagus sylvatica
commercial value
natural regeneration
plant growth
plant survival
density
biomass
morphological adaptation
aboveground resource
belowground resource
light
water
competition
Opis:
Beech is an important woody species in terms of ecology, and it also has a considerable commercial value. This fact is also reflected in a high number of scientific papers handling the issue of natural regeneration of this woody plant. The aim of this review is to analyse influence of resources availability and impact of other factors (competition) on height and diameter growth, survival, density, biomass partitioning and morphological adjustment in naturally regenerated beech seedlings and saplings. It pays a particular attention to light – the factor that influences, directly or indirectly, other environmental factors, and consequently, as the key influence on the performance of beech natural regeneration. This contribution includes information about e.g. shade tolerance and mortality-light relationships, ability to increase growth under improved light conditions, dependence of trees growth on their individual size and age etc. In spite of a large number of papers handling the issue of research on beech natural regeneration, growth responses in individual plants are difficult to predict, because the factors involved are numerous. Thus, the process of natural regeneration is in fact interactive, and even retroactive: any change in one of the involved factors induces adjustments of the others.
Źródło:
Dendrobiology; 2009, 61; 3-11
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The vital role of early identification of the urgent need to take decisive allostatic action for business survival (case study)
Autorzy:
Bursiak, Leszek
Powiązania:
https://bibliotekanauki.pl/articles/449501.pdf
Data publikacji:
2018-12-14
Wydawca:
Zachodniopomorska Szkoła Biznesu w Szczecinie
Tematy:
homeostasis
allostasis
allostatic action
organization
success
failure
survival
growth
change
business life cycle
diagnosing
organizational situation
organizational effectiveness
Opis:
The purpose of this article is to present the summary of studies accomplished under a research project concerning the vital role of early identification of the urgent need to take decisive allostatic action for business survival. This paper provides an overview of the research on early identification of the urgent need to take decisive allostatic action for business survival. There was implemented a very specific procedure of diagnosing and positioning organizational situation represented by FOGT business during a particular period of time from 2015 to 2017. The organizational situation of researched company is determined by a recognized level of organizational effectiveness or potential ineffectiveness caused by dysfunctions. The diagnosis is based on qualitative, long lasted depth analysis of the organizational situation of the researched company by means of the author's own implement named "The Business Life Cycle Model of Organizational Effectiveness Influenced by Dysfunctions". The measuring instrument (grading system) of this model is used to introduce the outcomes of the research work. All such way collected outcomes of each individual diagnosis gives the picture of overall organizational performance of given company annually, during the whole period of the research. The outcomes are adequately visualized on an appropriate scale, making the most of the model.
Źródło:
Zeszyty Naukowe ZPSB Firma i Rynek; 2018, 2(54); 105-118
2657-3245
Pojawia się w:
Zeszyty Naukowe ZPSB Firma i Rynek
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In Vitro Chemo-Sensitivity Assay Guided Chemotherapy is Associated with Prolonged Overall Survival in Cancer Patients
Autorzy:
Udelnow, Andrej
Schönfelder, Manfred
Würl, Peter
Halloul, Zuhir
Meyer, Frank
Lippert, Hans
Mroczkowski, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/1396300.pdf
Data publikacji:
2013-06-01
Wydawca:
Index Copernicus International
Tematy:
chemo-sensivity in vitro
survival prediction
chemotherapy
drug sensivity
cancer
Opis:
The overall survival (OS) of patients suffering From various tumour entities was correlated with the results of in vitro-chemosensitivity assay (CSA) of the in vivo applied drugs. Material and methods. Tumour specimen (n=611) were dissected in 514 patients and incubated for primary tumour cell culture. The histocytological regression assay was performed 5 days after adding chemotherapeutic substances to the cell cultures. n=329 patients undergoing chemotherapy were included in the in vitro/in vivo associations. OS was assessed and in vitro response groups compared using survival analysis. Furthermore Cox-regression analysis was performed on OS including CSA, age, TNM classification and treatment course. Results. The growth rate of the primary was 73-96% depending on tumour entity. The in-vitro response rate varied with histology and drugs (e.g. 8-18% for methotrexate and 33-83% for epirubicine). OS was significantly prolonged for patients treated with in vitro effective drugs compared to empiric therapy (log-rank-test, p=0.0435). Cox-regression revealed that application of in vitro effective drugs, residual tumour and postoperative radiotherapy determined the death risk independently. Conclusions. When patients were treated with drugs effective in our CSA, OS was significantly prolonged compared to empiric therapy. CSA guided chemotherapy should be compared to empiric treatment by a prospective randomized trial.
Źródło:
Polish Journal of Surgery; 2013, 85, 6; 340-347
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
English by other names: a lesson of survival in the jungle of concepts and misconceptions
Autorzy:
Przygoński, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2049810.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
There seems to be considerable confusion and conceptual ambiguity in the discourse on English in the global context caused by a plethora of various names referring to English and its role and functioning in the present day world. The emergence of nomenclatural richness may be indicative not only of the maturity of a given fi eld and the development of comprehensive conceptual frameworks, but it may also point to inconsiderate (often causing disarray) search for style variants or a lack of uniformity among scholars as to a given subject matter. In the discourse on the English language, further ambiguity, especially for students, may be caused by disparate understandings of the same concepts on the part of various language scholars. What follows is a brief overview and discussion of the most popular terms used in the literature on the subject of English in the world.
Źródło:
Linguistica Silesiana; 2014, 35; 243-252
0208-4228
Pojawia się w:
Linguistica Silesiana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The short-term effects of crude oil on the survival of different size-classes of cladoceran Daphnia magna (Straus, 1820)
Autorzy:
Lennuk, L.
Kotta, J.
Taits, K.
Teeveer, K.
Powiązania:
https://bibliotekanauki.pl/articles/47987.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
crude oil
short-term effect
pollution
Daphnia magna
size class
survival rate
aquatic environment
Źródło:
Oceanologia; 2015, 57, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variation in growth and survival among European provenances of Pinus sylvestris in a 30-year-old experiment
Autorzy:
Barzdajn, W.
Kowalkowski, W.
Chmura, D.J.
Powiązania:
https://bibliotekanauki.pl/articles/41160.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
plant growth
survival
provenance transfer
provenance trial
forest tree
Scotch pine
Pinus sylvestris
variation
long-term experiment
productivity
Opis:
Provenance trials with forest trees provide valuable information about growth and adaptability of populations often transferred over large geographical and climatic distances. In this study we evaluated growth and survival of 19 Scots pine (Pinus sylvestris L.) populations representing most of the natural range of the species in Europe, growing in a 30-year-old provenance trial in the northeastern Poland. We used cluster analysis to investigate differentiation among those populations in growth and survival. We also used published data on needle morphology and allozyme and DNA marker variation for those same populations to compare groupings of populations based on growth and needle traits and markers. We found significant variation among tested populations in all investigated traits – the largest variation was found for stand volume which integrates information on growth and survival. Variation in growth traits was related to the latitude of population origin with populations from the latitudinal band between 49° N and 54° N showing the best performance. Populations originating from both north and south off of that region showed lower productivity, which for southern provenances resulted from their particularly low survival, reflecting the lack of adaptation to the environment of the research site. Grouping of populations based on growth traits revealed three clusters corresponding to the three latitudinal regions – northern, central and southern. Needle morphological traits were not appropriate as markers of productivity. Clustering of populations based on needle morphology, and especially based on biochemical and molecular markers, did not correspond to the grouping based on growth traits.
Źródło:
Dendrobiology; 2016, 75
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-100 z 539

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