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71.
Graham C. Ousey 《Sociological inquiry》2000,70(4):391-419
Recent research in urban sociology posits that the proliferation of female-headed families in American cities is a result of declining economic prospects due to profound changes in the structure of the urban economy. Meanwhile, macro-level theory and research in criminology suggest that an association exists between family structure and rates of lethal violence among juveniles. Given these two streams of sociological thought, there is good reason to expect that increases in juvenile homicide rates since 1970 may be due, in part, to changes in the structure of the economy and the family during the 1970 to 1990 period. However, the nexus between deindustrialization, female-headed families, and juvenile homicide has received little attention in extant research. The objective of the current study is to remedy this gap in the literature by bringing together ideas about deindustrialization and female headship in an attempt to explain city-level changes in Black and White juvenile homicide rates between 1970 and 1990. In particular, the research investigates the hypothesis that a decline in the manufacturing base of cities increased rates of female headship and thereby indirectly raised homicide rates. Race differences in the hypothesized structural relationships also are examined. 相似文献
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Bridget M. Nugent Rajanikanth Madabushi Barbara Buch Vasum Peiris Victor Crentsil Virginia M. Miller Jonca Bull Marjorie R. Jenkins 《Pharmaceutical statistics》2021,20(5):929-938
Differences in patient characteristics, including age, sex, and race influence the safety and effectiveness of drugs, biologic products, and medical devices. Here we provide a summary of the topics discussed during the opening panel at the 2018 Johns Hopkins Center for Excellence in Regulatory Science and Innovation symposium on Assessing and Communicating Heterogeneity of Treatment Effects for Patient Subpopulations: Challenges and Opportunities. The goal of this session was to provide a brief overview of FDA-regulated therapeutics, including drugs, biologics and medical devices, and some of the major sources of heterogeneity of treatment effects (HTE) related to patient demographics, such as age, sex and race. The panel discussed the US Food and Drug Administration's role in reviewing and regulating drugs, devices, and biologic products and the challenges associated with ensuring that diverse patient populations benefit from these therapeutics. Ultimately, ensuring diverse demographic inclusion in clinical trials, and designing basic and clinical research studies to account for the intended patient population's age, sex, race, and genetic factors among other characteristics, will lead to better, safer therapies for diverse patient populations. 相似文献
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G. Bowden Templeton Sheryl B. Lash Virginia Robinson Jerry Gale 《Marriage & Family Review》2013,49(1):52-80
ABSTRACT The purpose of this qualitative study was to explore the social networks of Appalachian adolescents to understand socialization strategies and goals. A total of 46 interviews were conducted with five families (mothers, fathers, and adolescents) and 11 socialization agents the families identified as exerting significant influence in the lives of the adolescents. Interviews were transcribed and then analyzed using principles of grounded theory. Five themes developed from the interviews: the importance of community to the socialization process, adult involvement and support, adolescent monitoring, teaching respect and responsibility, and adolescent autonomy. Results suggest the need for in-depth investigation of adolescent development within a variety of cultural and social contexts to more fully understand these processes. 相似文献
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A three‐year project placed home‐school support workers in secondary schools. The intention was that they should work closely at operational level with other agencies to provide a cohesive local authority response to the needs of disaffected and excluded youngsters. Crucial distinctions emerged between project constraints, possibilities and benefits for agency personnel in the school‐focused agencies and those external to the school. In relation to the external agencies, support workers fulfilled predominantly an information gathering and sharing role whereby they joined up the solutions of disparate agencies, whereas very effective forms of cooperation developed with the school‐focused agencies. Copyright © 2001 John Wiley & Sons, Ltd. 相似文献
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The effect of gender composition on group performance was investigated over three years using the MARKSTRAT 2 simulation. Senior undergraduates formed groups and competed within five‐firm (group) industries over 10 weeks, as well as submitting group reports on their performances. Performance and report marks were independent of group size and individual performance in other course assessment. Women per group (numbers, percentage, gender ratio) was positively related to simulation performance, with few women‐dominated groups ranking lower than first or second within each industry. Very few all‐men groups achieved first or second rankings. There were no significant correlations between group gender compositions and marks for the group written report. Women's more interactive, people‐oriented and co‐operative work styles apparently facilitate the MARKSTRAT 2 group process and, when combined with men's more analytical decision‐making tendencies and competitive orientation, appear to explain the superior performances of mixed groups. The emergence and utilization of these tendencies within groups are discussed in terms of Social Contact Theory and Competition Theory. Although generalizations from student‐based studies to the workplace is problematic, the results indicate that groups may be more effective when women outnumber or equal men, especially in complex management activities requiring extensive information management and processing, planning and decision‐making over protracted periods. 相似文献
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Thirty‐one infants, 7 to 14 months of age, were tested on object and mother permanence using a delayed response task (Diamond, 1985), in which a delay period is enforced before infants are allowed to search for hidden objects. Infants were tested in 2 separate conditions in which they searched for their mothers and a large toy, both of which were hidden under curtained tables. The delay period before search was allowed was incremented after each successful trial until infants either failed to search or searched in the wrong location. Infants were scored for the maximum delay preceding a successful search. The results from 17 infants showed that infants were able to withstand significantly longer delays before successful search for the mother than for the toy. These results support previous studies showing that mother permanence precedes object permanence in infants older than 8 months. 相似文献
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