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61.
Udry JR  Morris NM 《Demography》1967,4(2):673-679
Seasonal variation of birth rates has been observed in every population in which it has been studied. Many hypotheses have been advanced to account for the variation, including seasonal variation in frequency of coitus. This relationship is known to be true for other primates, but seasonal variation in coital rate has not been previously documented in man.This paper presents over one hundred woman-years of data on coital rates from about .fifty white, mostly well-educated, premenopausal, married, husband-present volunteers. Seasonal fluctuations were seen in coital rates, of about the same magnitude as seasonal variations in the white birth rates reported for New York City, 1962-64; for the United States, 1963; and for the highest socioeconomic quintile census tracts, Baltimore, 1952-56. However, shifting the birth rates back forty weeks to approximate conception dates revealed no association with the observed coital rates.If the pattern presented has great generality, seasonal variations in births cannot be explained by seasonality of coitus.  相似文献   
62.
The study examines how white teachers talked to children about national identity and cultural diversity by drawing on qualitative research with eight- to 12-year-old students and their teachers from four Australian primary schools with different racial, ethnic and cultural demographics. Despite a range of explicit and implicit approaches that fostered different levels of critique among students, teachers often communicated Australian national identity as commensurate to white racial and Anglo-Australian cultural identity. We identified three main approaches teachers used to talk about national identity and cultural diversity: cultural essentialism, race elision and a quasi-critical approach. We conclude that the wider education system needs to develop a more formal curriculum structure that guides teachers in developing a better awareness of the power of white normativity, and to critically and explicitly counter discourse and practice that centres whiteness as foundational to dominant conceptualisations of national identity.  相似文献   
63.
Abstract Collectively, current resource‐development literature has given little attention to organizational features of ownership as important variables in community resilience. By drawing from six local buyout cases in Canada's forest sector, we reveal the complexity and numerous constraints on local ownership and expose a more nuanced context than most sociologists tend to consider. Our findings suggest that the meaning of local ownership and community resilience varies depending upon the composition (e.g., private vs. public; mill vs. forest license vs. coupled mill & forest license), type (social, cooperative, trust and/or direct‐share ownership), extent of ownership (percentage of local versus extra‐local shares), and the level of control (e.g., proportion of locally held seats on the Board of Directors) associated with ownership. Future research on local ownership should more carefully differentiate between the nature of local ownership and its associated outcomes.  相似文献   
64.
The present study investigated temporal associations between putative emotion regulation strategies and negative affect in 20‐month‐old toddlers. Toddlers’ parent‐focused, self‐distraction, and toy‐focused strategies, as well as negative affect, were rated on a second‐by‐second basis during laboratory parent–toddler interactions. Longitudinal mixed‐effects models were conducted to determine the degree to which behavioral strategy use predicts subsequent negative affect and negative affect predicts subsequent strategy use. Results with mother–toddler and father–toddler dyads indicated that parent‐focused strategies with an unresponsive parent were followed by increases in negative affect, whereas toy‐focused strategies were followed by decreases in negative affect. Results also indicated that toddler negative affect serves to regulate behavioral strategy use within both parent contexts.  相似文献   
65.
The relation between knowledge of American Sign Language (ASL) and the ability to decode facial expressions of emotion was explored in this study. Subjects were 60 college students, half of whom were intermediate level students of ASL and half of whom had no exposure to a signed language. Subjects viewed and judged silent video segments of stimulus persons experiencing spontaneous emotional reactions representing either happiness, sadness, anger, disgust, or fear/surprise. Results indicated that hearing subjects knowledgeable in ASL were generally better than hearing non-signers at identifying facial expressions of emotion, although there were variations in decoding accuracy regarding the specific emotion being judged. In addition, females were more successful decoders than males. Results have implications for better understanding the nature of nonverbal communication in deaf and hearing individuals.We are grateful to Karl Scheibe for comments on an earlier version of this paper and to Erik Coats for statistical analysis. This study was conducted as part of a Senior Honors thesis at Wesleyan University.  相似文献   
66.
Abstract Local control of natural resource processing facilities in small rural communities is often viewed as beneficial to community development. This paper employs social impact assessment tools to examine the social and economic effects of change in the ownership of forest products mills in two communities. Our analysis documents (1) the degree to which local ownership of the new, locally owned corporations led to local reinvestment of profits, and (2) whether the goals of the architects of these buyouts were realized: the maintenance of jobs, income, population, and a way of life. Overall, both communities were able to maintain jobs, population, and real estate values, and profits were reinvested in mill upgrades. After the buyouts, however, both communities experienced a rise and then a decline in community cohesion, and changes in local social and power relations, in which local ownership was short‐lived; benefits to relationships within the community were mixed.  相似文献   
67.
This article reports selected findings from a study of the process by which urban parents search for child care. Analyses of interview data indicate that (a) parents used informal sources of information to a considerably greater extent than formal sources, (b) the general pattern was to begin the search with relatives and close friends and gradually move out to more peripheral ties, (c) there does not appear to be an effective informal system of neighbors or community persons who matched parents with child care providers, and (d) there was no single or several sources that were outstanding in effectiveness for a large proportion of parents. The article sets forth implications of these data for the design of child care information and referral services in urban settings.  相似文献   
68.
“Downshifting,” reducing work hours, thereby income, to increase leisure time, offers a possible individual‐level solution to the stress many experience from long working hours and work intensification. Recently, some have argued that an increase in leisure time with a reduction in income might also foster pro‐environmental lifestyles as has been demonstrated for the “voluntary simplicity” movement. Quantitative research on the relationship between downshifting and quality of life is scant, with equivocal results, and studies of the relationship between downshifting and environmental lifestyles are even more rare. Survey data from a western Canadian city reveal nonsignificant impacts of downshifting on two measures of quality of life (subjective well‐being and satisfaction with time use) as well as on sustainable transportation practices. However, downshifting is significantly associated with sustainable household practices. In order for downshifting to have more widespread positive effects, further structural changes in broader domains such as work culture, urban design, and support for families will be required.  相似文献   
69.
This contribution addresses modern forms of group-based discrimination, and examines how these impact upon the likelihood that people engage in collective action. Based on a review of the relevant literature, we predict that modern expressions of prejudice are less likely to be perceived as indicating group-based disadvantage and hence elicit less anger, protest, and collective action than old-fashioned prejudice. We present three studies to offer empirical support for this prediction. In Study 1 ( N = 116), female participants were led to believe that the general public endorses either old-fashioned or modern sexist views. In Study 2 ( N = 44) and 3 ( N = 37) female participants were exposed to a student supervisor who allegedly held either old-fashioned or modern sexist views. Results of all three studies indicate that modern sexism is less likely to be perceived as a form of discrimination, and as a result elicits less anger at the source and less support for collective action (Study 1), intentions to protest (Study 2), and collective protest behavior (Study 3) than old-fashioned sexism. In discussing the results of this research, we connect to current insights on antecedents of collective action, and identify conclusions from our analysis that are relevant for societal and organizational policy making.  相似文献   
70.
Recent papers by Cornelissen (2002a, 2002b) and Gioia, Schultz and Corley (2002a, 2002b ) have debated the utility of organizational identity as a metaphor for understanding organizational life. In the present paper we argue that this debate is limiting because it frames issues of organizational identity purely in metaphorical terms and fails to explore the social psychological basis and consequences of the discontinuity between personal and organizational identity. Extending this debate, we argue that the power of organizational identity as a theoretical and applied construct derives from the fact that it has the capacity to be both an externally shared and negotiated product and an internalized aspect of the collective self. Consistent with recent research informed by the social identity approach to organizational psychology, we discuss how an appreciation of the identity‐based dynamic between the social facts of organizations and the socially‐structured psychology of organizational members is essential for both theoretical and practical understanding of organizational life.  相似文献   
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