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Wyświetlanie 1-15 z 28
Tytuł:
The use amelogenin gene polymorphism in PCR embryo sexing in bovine IVF embryos
Autorzy:
Lechniak, D
Cumming, J R
Powiązania:
https://bibliotekanauki.pl/articles/2046605.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
polymorphism
sex chromosome
Y chromosome
bovine embryo
sex
amelogenin gene
polymerase chain reaction
embryo
Opis:
The present study describes a rapid, simple method of bovine IVF embryo sexing by use of PCR technique. A pair of primers corresponding to the bovine amelogenin sequence has been used. The Rapid Cycler (Idaho Technology, USA) used in the current experiment enabled the PCR programme consisting of 55 cycles to be completed in less than 40 minutes. Therefore the total sexing procedure could be performed in less than 90 minutes. The described method succeded in case of 85% analysed embryos.
Źródło:
Journal of Applied Genetics; 1997, 38, 1; 45-49
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identity dimensions versus proactive coping in late adolescence while taking into account biological sex and psychological gender
Autorzy:
Kalka, Dorota
Karcz, Bartosz
Powiązania:
https://bibliotekanauki.pl/articles/430653.pdf
Data publikacji:
2016-09-01
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
adolescents
proactive coping
biological sex
psychological gender
Opis:
The aim of study was to investigate the relationship between proactive coping strategies and the dimensions of identity formation, along with the role of biological sex and psychological gender as moderators for this relationship. We conducted analyses aimed at showing differences in terms of identity dimensions levels and proactive coping strategies used by a group of individuals with different biological sex and psychological gender. A group of 101 students from upper secondary schools (47 females, 54 males) from Pomeranian Voivodeship took part in the study. We used in our research The Dimensions of Identity Development Scale; The Psychological Gender Inventory and The Proactive Coping Inventory for Adolescents. We found, among others, that in the case of a proactive strategy, biological sex turned out to be a significant moderator in the relationship between this variable and identity dimensions: ruminative exploration, commitment-making and identification with commitment. In the case of instrumental support seeking, psychological gender turned out to be a significant moderator for the relationship between these variables and a part of identity dimensions. The obtained results show that, regardless of whether young people, in terms of characteristics that are stereotypically associated with biological sex, are described as aschematic (undifferentiated individuals) or schematic (sex-typed) when entering adulthood and attempting to constitute themselves, more often cope in a task-oriented manner by trying to create a set of information useful in difficult situations and aspire to obtain informational support from individuals in one’s own social network, who are regarded as safe people.
Źródło:
Polish Psychological Bulletin; 2016, 47, 3; 300-310
0079-2993
Pojawia się w:
Polish Psychological Bulletin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dwa monologi: feministyczna „kobiecość” i ewolucjonistyczna „samczość” analiza dwóch paradygmatów badania płciowości
Two Monologues: Feminist ‘Femininity’ and Evolutionary ‘Masculinity’: Analysis of Two Research Paradigms of Sexuality
Autorzy:
Łuczaj, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/985866.pdf
Data publikacji:
2014-03-01
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Feminism
evolutionism
gender-sex
płeć
ewolucjonizm
feminizm
Opis:
The author analyzes attitudes to the phenomenon of sexuality on the basis of two theoretical perspectives, the evolutionary and the feminist, between which there has long been conflict. In his opinion, however, they are only seemingly contrary. The main texts of both trends of thought concern entirely different problems and at the substantive level there is basically no contradiction between them. It is important that evolutionary theory often undermines existing cultural schemas, although this is rarely perceived by proponents of feminist theories. Evolutionists, in turn, rather too often identify feminism with radical social constructivism. Another extreme is a view that could be described as evolutionary sexism, consisting in justifying the gender status quo by reference to biological essentialism. After elimination of the extreme approaches, which are rare in any case, it is possible to use the results of evolutionary research in the debate over gender equality and to transform the two monologues into a cohesive dialogue; this, in the author’s opinion, is an important task for empirically oriented social theory
Źródło:
Kultura i Społeczeństwo; 2014, 58, 1; 21-39
2300-195X
Pojawia się w:
Kultura i Społeczeństwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contribution to the knowledge of the infection with Acanthocephala of a predatory Antarctic ice−fish Chaenocephalus aceratus
Autorzy:
Laskowski, Zdzisław
Zdzitowiecki, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2051582.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
West Antarctic
Acanthocephala
Chaenocephalus aceratus
infection
host sex
Źródło:
Polish Polar Research; 2010, 4; 303-308
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rumex thyrsiflorus Fingerh. – sex ratios among seedlings and explants cultured in vitro
Autorzy:
Dziedzic, K.
Cygan, M.
Mizia, P.
Kwolek, D.
Slesak, H.
Powiązania:
https://bibliotekanauki.pl/articles/81088.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
Rumex thyrsiflorus
Rumex acetosa
sex ratio
sex chromosome
seedling
explant
in vitro culture
chromosome
scanning electron microscopy
DNA marker
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Does Hope in Mind Influence People’s Problem-Solving Performance?
Autorzy:
Trzmielewska, Weronika Daria
Rak, Tomasz
Wrześniowski, Szymon
Powiązania:
https://bibliotekanauki.pl/articles/2121411.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
state hope
goal-oriented thinking
problem-solving performance
sex differences
Opis:
Hope is often treated as a priceless human value anchored in goal-related cognitions. The experiment aimed to investigate whether current hopeful thinking is related to problem-solving performance and how induced goal-oriented thinking influences this problem-solving process. Participants (N = 410) were asked to recall and describe their successful or unsuccessful goal pursuit and complete a scale assessing current hopeful thinking. Subsequently, participants were instructed to (1) think about actions that would be taken to solve the societal problem (i.e., an insufficient number of volunteers in Social Welfare Centers) and (2) describe these actions. In general, people who recalled successful events felt more hopeful than those who recalled unsuccessful events. State Hope was positively correlated with both the quantity (i.e., the total number of solutions) and quality (i.e., usefulness) of participants’ offered solutions. No interaction between State Hope and type of conditions with solution quantity or solution quality was found. State hope, however, interacted with the type of recalled goal pursuit when sex differences were considered. More hopeful women had a better solution quality when they recalled an unsuccessful goal pursuit. For men, a similar pattern was found when they recalled a successful goal pursuit. Lastly, the findings were discussed in light of Snyder’s Theory of Hope.
Źródło:
Polish Psychological Bulletin; 2022, 53, 1; 23-31
0079-2993
Pojawia się w:
Polish Psychological Bulletin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of host plant cultivar and nitrogen fertilization on life history of Helicoverpa armigera (Lepidoptera: Noctuidae)
Autorzy:
Salehi, F.
Gharekhani, G.
Shirazi, J.
Vaez, N.
Powiązania:
https://bibliotekanauki.pl/articles/2082784.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
age-stage two-sex life-table
fertilization
Helicoverpa armigera
nitrogen
Opis:
The current survey was carried out to evaluate the effect of different nitrogen levels (0, 2.1, 3.0, 3.9 g ∙ pot–1 nitrogen as urea 46%) on tomato fruit worm Helicoverpa armigera on six common tomato cultivars (e.g., Kingston, Riogrand, Earlyurbana, Redston, Superstrain-B and Primoearly) under laboratory conditions [25 ± 1°C, 60 ± 5% RH, 16 : 8 (L : D) h]. The mortality, developmental period of immature stages as well as the longevity and fecundity of adult stages were recorded. Data were analyzed based on the age-stage, two-sex life- table theory. The longest (24.21 ± 0.59 days) larval developmental period was recorded in Earlyurbana variety with zero nitrogen level and the shortest (15.44 ± 0.36 days) in Superstrain-B variety with the highest nitrogen level. Consequently, the net reproductive rate (R0 ) ranged from 35.7 ± 7.06 to 62.16 ± 18.9 offspring/female/individual in Redston variety with zero nitrogen level and in Superstrain-B variety with the highest nitrogen level, respectively. The lowest and highest values of the intrinsic rate (r) and finite rate of increase (l) were estimated for Redston variety with zero level of nitrogen (0.0712 ± 0.0065 and 1.0732 ± 0.0069 day –1 ) and Superstrain-B variety with the highest nitrogen fertilizer (0.1507 ± 0.0057 and 1.1629 ± 0.0066 day –1 ), respectively. The results demonstrated that nitrogen fertilizer influenced nearly all the life parameters of the pest which depended on the cultivars. Finally, it could be concluded that Kingston and Superstrain-B were suitable and Earlyurbana and Redston were unsuitable host plant cultivars for H. armigera.
Źródło:
Journal of Plant Protection Research; 2020, 60, 2; 161-175
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sex and age differences in facial emotions expressions measured by artificial intelligence
Autorzy:
Gablíková, Mária
Halamová, Júlia
Powiązania:
https://bibliotekanauki.pl/articles/2130052.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
facial expressions
artificial intelligence
advertisement
age
sex
stereotypes
facial appearance
Opis:
Our aim was to test existing sex and age stereotypes related to emotional expressivity, gender and age. This was a complex analysis of facial expressions of all basic emotions (anger, disgust, fear, happiness, sadness, and surprise) to everyday life stimuli observing a large sample (2,969 unique participants creating 39,694 recordings) using an Emotion Artificial Intelligence. Our data partially support emotion-specific stereotype that women express more affiliate emotions and men express more dominant emotions except for sadness. There were found correlations of emotion expression with age, however intensity and frequency of emotion expression did not follow the same pattern. Not eliminating the differences between men and women in the baseline facial appearance resulted in men expressing dominant emotions (anger and disgust) more intensively, and women expressing more affiliative emotions (happiness, fear, and surprise). To sum up, facial appearance can be one of the origins of the existing gender stereotypic socialisation stereotype.
Źródło:
Polish Psychological Bulletin; 2021, 52, 1; 83-96
0079-2993
Pojawia się w:
Polish Psychological Bulletin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cross-Lagged Relations Between Sexual Attitudes, Perception of Love and Sex, and Young Adults’ Relationship Status: A Two-Wave Study
Autorzy:
Adamczyk, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/2127324.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
perception of love and sex
sexual attitudes
single
partnered
young adults
Opis:
The purpose of this two-wave longitudinal study was to investigate cross-lagged relations between sexual attitudes, perception of love and sex, and young adults’ relationship status over a period of one year. The current study tested two hypotheses: the first hypothesis assuming that sexual attitudes, perception of love and sex can be predictive of relationship status after a one-year interval; and the second hypothesis assuming that relationship status at T1 can be predictive of sexual attitudes and perception of love and sex after a one-year interval. Results from 117 Polish young adults (94 females and 23 males) aged 20–33 (M = 21.42, SD = 1.79) indicated that the conviction that sex is no longer as much a part of the relationship as it used to be (i.e., Sex is Declining scale) measured in the first assessment was a significant predictor of relationship status after a one-year interval. Furthermore, sexual attitudes and perception of love and sex at T1 were found to be predictive of sexual attitudes and perception of love and sex at T2. In addition, gender at T1 was predictive of instrumentality at T2, while being female at T1 related to higher instrumentality at T2.
Źródło:
Polish Psychological Bulletin; 2018, 49, 2; 184-193
0079-2993
Pojawia się w:
Polish Psychological Bulletin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transnational families in Spain. Marriage, nationality and gender
Autorzy:
Biernacka, Maja
Powiązania:
https://bibliotekanauki.pl/articles/579761.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
SPAIN
TRANSNATIONAL FAMILIES
IMMIGRATION
(UN)DOCUMENTED IMMIGRANTS
DIFFERENT/SAME-SEX MARRIAGES
LEGISLATION
NUPTIALS
Opis:
The paper is dedicated to immigration and transnational families in Spain. The author presents legislative aspects, discusses social phenomena and analyzes crucial INE data which hinge on the intersection of immigration and family issues. The data include: 1/the number of marriages which are referred to as matrimonios mixtos, i.e. the ones which are contracted between a Spaniard and the other spouse being a foreigner, 2/the number of marriages contracted in Spain between foreigners and 3/their share in the total number of nuptials. Legislative aspects relate to the formal conditions which need to be fulfilled by foreigners in order to enter into wedlock and the requirements concerning documentation on the part of a Spanish citizen and a foreigner. What is important, the Spanish law allows a marriage to be contracted between a Spanish citizen and a foreigner regardless of the status of the latter. That is to say, the future spouse may be in a so-called irregular situation which grants the right for undocumented immigrants to get married in Spain and eventually obtain a residence permit.
Źródło:
Studia Migracyjne - Przegląd Polonijny; 2018, 44, 2 (168); 189-201
2081-4488
2544-4972
Pojawia się w:
Studia Migracyjne - Przegląd Polonijny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adaptor-mediated amplification of minute amounts of severely fragmented ancient nucleic acids
Autorzy:
Pusch, C M
Blin, N.
Broghammer, M.
Nicholson, G.J.
Scholz, M.
Powiązania:
https://bibliotekanauki.pl/articles/2042022.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mitochondrial DNA
genetics
nucleic acid
ancient DNA
polymerase chain reaction
DNA
cDNA
sex typing
Źródło:
Journal of Applied Genetics; 2000, 41, 4; 303-315
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Życiowa zaradność czy nieporadność – świadczenie usług seksualnych z perspektywy kobiet pracujących w agencjach towarzyskich
Resourcefulness or Helplessness – Provision of Sexual Services from the Perspective of Women Working in Escort Agencies
Autorzy:
Ślęzak, Izabela
Powiązania:
https://bibliotekanauki.pl/articles/427085.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
usługi seksualne
zaradność
teoria ugruntowana
badania jakościowe
sex services
resourcefulness
grounded theory
qualitative research
Opis:
W literaturze przedmiotu kobiety świadczące usługi seksualne opisywane są przede wszystkim z dwóch perspektyw: jako bezwolne ofiary, które nie potrafią kierować swoim życiem lub zdecydowanie rzadziej, jako świadome podmioty, podejmujące decyzję o takim sposobie zarobkowania. W artykule te dwie perspektywy zostaną zestawione z doświadczeniami kobiet, które swoje zaangażowanie w usługi seksualne postrzegają w kategoriach zaradności. Zaprezentowane zostaną podtypy zaradności wyróżnione podczas analizy danych. Opisany zostanie także ambiwalentny charakter tak rozumianej zaradności, w której duma z faktu radzenia sobie w życiu splata się nierzadko z poczuciem wstydu i lęku, wynikających ze świadomości negatywnego odbioru społecznego. Bazę empiryczną artykułu stanowią 52 wywiady swobodne z kobietami świadczącymi usługi seksualne w agencjach towarzyskich, poddane analizie za pomocą procedur metodologii teorii ugruntowanej.
Women providing sex services have been hitherto described in the research literature from the two main perspectives: as victims who are unable to manage their lives, or, much less frequently, as conscious beings who make decisions about this way of earning their living. These two perspectives are juxtaposed in the article with the experiences of women who interpret their involvement in sex services as resourcefulness. The empirical data have been collected by means of the unstructured interviews with 52 women providing sex services in escort agencies. Grounded theory procedures have been used to analyze the research material. The analysis allows to distinguish the subtypes of resourcefulness. The article discusses an ambivalent nature of resourcefulness understood in this way: the sense of being proud of their ability to cope well in life is intertwined with a sense of shame and anxiety that arise from the awareness of being perceived negatively by the society.
Źródło:
Studia Socjologiczne; 2019, 4(235); 183-210
0039-3371
Pojawia się w:
Studia Socjologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An influence of herbs on the sex structure in populations of insect pests of stored products
Autorzy:
Klys, M.
Powiązania:
https://bibliotekanauki.pl/articles/65239.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
herb
sex structure
animal population
insect pest
pest
stored product
Oryzaephilus surinamensis
Rhyzopertha dominica
Sitophilus oryzae
Opis:
The effects of powdered herbs (lavender Lavandula officinalis L., peppermint Mentha piperita L. and basil Ocimium basilicum L.) added to the food substances of three insect species: the rice weevil Sitophilus oryzae (L.), lesser grain borer Rhyzopertha dominica (F.), and the saw-toothed grain beetle Oryzaephilus surinamensis (L.) on the life span and development of the three insect species as well as habitat conditions, sex structure, and the survivability of males and females were considered. The experiments were conducted in the laboratory at a temperature of 28°C and relative humidity (RH) 60 ±5%. In all the studied populations, high female mortality was found (♂/♀ < 1). The studied populations were: the rice weevil and the lesser grain borer cultured in wheat grain with herb additions, and the saw-toothed grain beetle cultured in semolina with herb additions. Among the herbs used, peppermint caused a significant effect in the form of increased mortality rates among females of S. oryzae and O. surinamensis. Lavender and basil had a similar impact among R. dominica females. The herbs applied in the experiments intensified the mortality of females and, consequently, led to the disappearance of entire populations.
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:
Comparison of the nuclear organiser region activity in four taxa of the family Canidae
Autorzy:
Pienkowska, A
Zagalska, M.
Powiązania:
https://bibliotekanauki.pl/articles/2041199.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nuclear organiser region activity
gene cluster
rRNA
sex chromosome
genetics
Canidae
racoon dog
karyotype
rRNA gene
Źródło:
Journal of Applied Genetics; 2001, 42, 4; 493-501
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ryzyko zawodowe: przemoc w doświadczeniu pracownic agencji towarzyskich
Occupational Risk: Violence Experienced by Indoor Sex Workers
Autorzy:
Ślęzak, Izabela
Powiązania:
https://bibliotekanauki.pl/articles/427687.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
prostytucja
praca seksualna
przemoc
badania jakościowe
agencje towarzyskie
prostitution
sex work
violence
qualitative research
escort agencies
Opis:
Celem artykułu jest zrekonstruowanie sposobów postrzegania przez pracownice agencji towarzyskich przemocy związanej ze świadczeniem usług seksualnych. Omówione zostaną wygenerowane w wyniku analizy zebranego materiału empirycznego kategorie przemocy jako ryzyka zawodowego, a także jako osobistego zagrożenia oraz „naturalnego” elementu interakcji. Szerzej zaprezentowana zostanie kategoria przemocy jako ryzyka zawodowego oraz powiązane z nią kategorie redefiniowania, bagatelizowania oraz objaśniania przemocy. Artykuł opiera się na badaniach własnych, przeprowadzonych w agencjach towarzyskich. Głównymi technikami gromadzenia danych były obserwacja i wywiady swobodne z kobietami świadczącymi usługi seksualne. Dane zostały poddane analizie zgodnie z procedurami metodologii teorii ugruntowanej.
The aim of this article is to reconstruct how violence in connection with sex services is perceived by female workers of escort agencies. The article contains an analysis of empirical material on the category of violence as an occupational risk, a personal danger, or a ‘natural’ element of interaction. The category of violence as an occupational risk, with the related redefining, trivializing, and justifi cation of violence, is more broadly presented. The article is based on the author’s own research conducted in escort agencies. The main techniques of collecting data were observation and casual interviews with women offering sex services. The data was analysed in accord with the methodology of accepted theory.
Źródło:
Studia Socjologiczne; 2016, 4(223); 277-303
0039-3371
Pojawia się w:
Studia Socjologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
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