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The aim of this study is to determine the effects of different parts of the Y chromosome of wild house mice on aggression. To reach this goal, intercrosses were made between two selection lines for attack latency (SAL and LAL) and their congenic strains (SAL. LY and LAL. SY). This procedure resulted in F1 hybrids that carried the same autosomes, but differed in their X chromosome and the two different parts of their Y chromosomes, the different parts of the Y chromosome being a recombining part called the pseudoautosomal region (PAR) and a non-recombining part (non-PAR). We conclude that both parts of the Y chromosome contribute slightly but significantly to variation in aggression. The major effect is accomplished by the PAR of the aggressive parent; a mirror effect is achieved by the non-PAR of the aggressive parent in interaction with the PAR. © 1994 Wiley-Liss, Inc. 相似文献
143.
An attempt was made to determine the role of the Y chromosome in the development of aggression in wild house mice. The aggression-eliciting property of testosterone depends not only on circulating adult testosterone, but also on perinatal sensitization of the central nervous system to this steroid. Results of crosses between aggressive (SAL) and non-aggressive (LAL) mice indicate that adult plasma testosterone in these mice is determined by the autosomes, high testosterone levels being dominant over low levels. Conversely, the Y-chromosomal effect seems related to perinatal processes that sensitize the brain for testosterone. 相似文献
144.
Frans Dokman 《International review of missions》2020,109(1):125-134
The Ecumenical Water Network (EWN) is a network of churches and Christian organizations promoting people’s access to water around the world. There are many actors on advocacy for water justice; the EWN was formed to make a Christian witness be heard in the present debate on water issues. This article reflects on the meaning of spirituality for the EWN as an organization and on the relationship the EWN has with other actors in the field of water justice. This reflection is intended to ponder the questions which the EWN places at the core of its mission: “why we do, what we do?” Answering these questions contributes to theories and practices on mission and diversity and provides a stimulus to the manner in which organizations for mission and water justice deal with diversity. The perspectives derive from theology, mission studies, management sciences, and social anthropology. 相似文献
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Annabelle Casier Liesbet Goubert Winifred A. Gebhardt Frans De Baets Sara Van Aken Dirk Matthys 《Psychology & health》2013,28(11):1337-1351
Objective: The main aim of this study was to investigate the relationship between acceptance and well-being in adolescents with chronic illness from a daily process perspective. Furthermore, we explored the role of daily experienced interference and facilitation of life goals by treatment goals as mediating mechanisms.Methods: Thirty-eight adolescents with cystic fibrosis (CF) or diabetes completed questionnaires assessing acceptance, negative life events and goal-related self-efficacy. Furthermore, an online diary assessing daily mood, daily experienced interference and facilitation of life goals by treatment goals was completed during three consecutive weeks.Results: Acceptance of illness was positively related to daily well-being, but unrelated to daily goal interference and facilitation. Furthermore, daily goal interference and facilitation were unrelated to same-day and next-day well-being.Conclusion: This study suggests that acceptance of illness plays an important role in the daily mood of adolescents with CF and diabetes. This relationship, however, was not mediated by daily experienced interference and facilitation of life goals by treatment goals. Further research is needed to determine whether interventions promoting acceptance are beneficial for adolescents with CF and diabetes. 相似文献
147.
Fleurie Nievelstein Tamara van Gog Henny P. A. Boshuizen Frans J. Prins 《Journal of Cognitive Psychology》2013,25(6):1043-1064
Little research has been conducted on expertise-related differences in conceptual and ontological knowledge in law, even though this type of knowledge is prerequisite for correctly interpreting and reasoning about legal cases, and differences in conceptual and ontological knowledge structures between students and between students and teachers, might lead to miscommunication. This study investigated the extent and organisation of conceptual and ontological knowledge of novices, advanced students, and experts in law, using a card-sorting task and a concept-elaboration task. The results showed that novices used more everyday examples and were less accurate in their elaborations of concepts than advanced students and experts, on top of that, the organisation of their knowledge did not overlap within their group (i.e., no “shared” ontology). Experts gave more judicial examples based on the lawbook and were more accurate in their elaborations than advanced students, and their knowledge was strongly overlapping within their group (i.e., strong ontology). Incorrect conceptual knowledge seems to impede the correct understanding of cases and the correct application of precise and formal rules in law. 相似文献
148.
The test for cluster bias is a test of measurement invariance across clusters in 2-level data. This article examines the true positive rates (empirical power) and false positive rates of the test for cluster bias using the likelihood ratio test (LRT) and the Wald test with ordinal data. A simulation study indicates that the scaled version of the LRT that accounts for nonnormality of the data gives untrustworthy results, whereas the unscaled LRT and the Wald test have acceptable false positive rates and perform well in terms of empirical power rate if the amount of cluster bias is large. The test for cluster bias is illustrated with data from research on teacher-student relations. 相似文献
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Objectives: This study compared results on cognitive tests measuring nonverbal visualization and reasoning, executive functions, and creativity between 36 boys with experience of living in the street and 31 housed yet socioeconomically equivalent boys, in Bolivia. Results: The street children scored significantly higher on the creativity measure, which is discussed in relation to contextual relevance. No significant differences were found on the other cognitive tests. Time elapsed after living in the street and drug use were strongly associated with cognition, while age was not. Both groups scored below average compared to Western norms. The results are discussed in terms of the cultural relevance of the tests and the impact of socioeconomic status, stress, and stimulation on cognition. 相似文献