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861.
Donald I. Tepas 《Work and stress》1990,4(3):203-211
When compared to day workers, night-shift workers report that they eat fewer meals, have poorer appetites, are less satisfied with their eating habits, and eat at different times of the day. When demographic variables are held constant, there do not appear to be any significant differences between experienced day and night-shift workers in caffeine or alcohol consumption. Exceptions to and variations in these findings are probably due to the background influences of social and cultural variables. Eating and drinking behaviours do effect human performance and mood, but little relevant data have been gathered from experienced night-shift workers. There are no shiftworker data evaluating the effectiveness of the special diets or dietary recommendations that have been proposed for use by night-shift workers. Thus, attempts to manipulate night-shift worker eating and drinking habits require experimental test. 相似文献
862.
Snyder DW 《Demography》1974,11(4):613-627
The economic theory of fertility postulates that income and prices, broadly defined, are important determinants of family size. What follows is an attempt to test this theory against the behavior of 717 predominantly urban households in Sierra Leone. Husband's education is used as a proxy for income; the "price" of a child is accounted for by wife's education and wife's wage rate. Other important variables are wife's age, a measure of child "quality," wife's age at first birth, and child mortality. The findings of the study tend to lend support to the economic theory of fertility but contain certain peculiarities which indicate a need for further research. 相似文献
863.
A Study of Reputational Community Leaders Using The Concepts of Exchange and Coordinative Positions*
The general purposes of this study were to investigate the group and organizational affiliates of reputed community leaders in a rural community. The specific hypotheses were that the higher one is ranked as a reputational leader, (1) the more exchange influence he will likely have accumulated through occupying economic, kinship, occupational, ownership, and political-governmental positions which are reputedly influential in the community, (2) the more likely he is to be an active participant in formal and/or informal coordinative interstitial groups in the community, and (3) the more likely he is to be an active participant in those formal coordinative groups which are reputed to be influential over community affairs. The hypotheses were tested by comparing the sets of rankings of twenty-eight reputational leaders with (1) their rankings in terms of exchange positions scores, (2) their rankings in terms of social participation scores, and (3) their rankings in terms of weighted social participation scores. The results of the study tended to support the hypotheses, as stated, for the community involved. 相似文献
864.
Elliott Susan J. Cole Donald C. Krueger Paul Voorberg Nancy Wakefield Sarah 《Risk analysis》1999,19(4):621-634
This paper describes a multi-stakeholder process designed to assess the potential health risks associated with adverse air quality in an urban industrial neighborhood. The paper briefly describes the quantitative health risk assessment conducted by scientific experts, with input by a grassroots community group concerned about the impacts of adverse air quality on their health and quality of life. In this case, rather than accept the views of the scientific experts, the community used their powers of perception to advantage by successfully advocating for a professionally conducted community health survey. This survey was designed to document, systematically and rigorously, the health risk perceptions community members associated with exposure to adverse air quality in their neighborhood. This paper describes the institutional and community contexts within which the research is situated as well as the design, administration, analysis, and results of the community health survey administered to 402 households living in an urban industrial neighborhood in Hamilton, Ontario, Canada. These survey results served to legitimate the community's concerns about air quality and to help broaden operational definitions of health. In addition, the results of both health risk assessment exercises served to keep issues of air quality on the local political agenda. Implications of these findings for our understanding of the environmental justice process as well as the ability of communities to influence environmental health policy are discussed. 相似文献
865.
Menstruation is a normal, developmental event anchored in contradictory value systems. Although it demarcates a transition to womanhood, it is often associated with negative sentiments such as shame, camouflage and discomfort. Certain behavioral expectations, including avoiding sexual intercourse, also accompany menstruation. Research has generally suggested that sex does decrease during menstruation. However, not all sexual activity is suppressed during menses; both individual and relationship factors provide influence. Accordingly, this study investigated situational and relational factors associated with the day-to-day likelihood of sex and vaginal bleeding among 387 (aged 14-17 at enrollment) adolescent women. Generalized estimating equation logistic regression, in SUDAAN 9.0, was used; predictors of coitus and bleeding included recent sexual activity, past coitus/bleeding, marijuana use before intercourse and higher partner support, higher sexual interest and lower feelings of being in love. The findings highlight appropriate areas of focus for information, education and STI prevention counseling. 相似文献
866.
This article reports the development of a couple-based intervention in which at least one partner had experienced chronic difficulties in emotion regulation, operationalized as having participated in a yearlong dialectical behavior therapy (DBT) skills training group. Integrating dialectical behavior therapy and cognitive-behavioral couple therapy, this group intervention taught couples emotion regulation, communication, and problem-solving skills, and led them through an exploration of how strong feelings affect and are affected by their relationship. The effects of treatment were evaluated in terms of relationship satisfaction and individual well-being. Sizeable treatment effects were found in several domains, including a reduction in DBT graduates' depressive symptoms and emotion dysregulation, and an increase in their partners' relationship satisfaction and confidence in their graduate spouses' ability to regulate emotions. 相似文献
867.
Minnesota has been recognized by several studies as a state with a significant amount of racial disparity in its child protection system. This study, using 2001 data from Minnesota's Social Services Information Service, was conducted to determine at which of the six decision points in Minnesota's child welfare system racial disparities are statistically significant. The authors employ a nested model to examine a child's journey through the Minnesota child protection system. Using binary logistic regression, they are able to determine the odds that a child belonging to a particular racial or ethnic group would progress to the next decision point. 相似文献
868.
Donald B. Pittenger 《Demography》1973,10(1):113-121
It is suggested that a useful component of a fertility simulation would be proportions of females sterile by age. Data on this phenomenon are rather limited, but they indicate that proportional sterility may not easily be described by a simple function. We propose that rates of becoming sterile may be adequately described by an exponential function utilizing proper parameter values. Such exponential-model rates form the basis for computation of a fecundity decrement table presented in this paper. Sterility proportions from the table are compared to some empirical data. 相似文献
869.
This article addresses two fundamental issues in the design and implementation of federal urban policies: (i) the shifting priorities of urban policy characterizing urban renewal, the Community Development Act, and recent neighborhood-oriented redevelopment efforts and (ii) the sociological theories which underlie such priorities. The first part of the article traces the shift in priority of national urban policy from an earlier focus on economic redevelopment and housing assistance for the economically disadvantaged to the more recent thrust toward neighborhood rehabilitation, revitalization, and stabilization. The central role of private sector economic involvement in the new urban strategies is discussed and the triage model of urban development is proposed to explain recent urban policy efforts. In the latter part of the article the sociological theories underlying many of the new urban policies are shown to contain inherent contradictions and inadequacies which were largely ignored by policy-makers. The authors conclude that the articulation between these theories of neighborhood dynamics and the present urban policy focus dooms recent programs, once again, to failure. 相似文献
870.
The impact of state-level restrictions on abortion 总被引:1,自引:0,他引:1
Kenneth J. Meier Donald P. Haider-Markel Anthony J. Stanislawski Deborah R. Mcfarlane 《Demography》1996,33(3):307-312
This research examines 23 different laws passed by state governments in an effort to restrict the number of abortions. It assesses both laws passed and laws actually enforced after the Supreme Court permitted states to restrict access to abortion in 1989. None of the policy actions by state governments has had a significant impact on the incidence of abortion from 1982 to 1992. Abortion rates continue to reflect past abortion rates, the number of abortion providers, whether the state funds abortions for Medicaid-eligible women, urbanism, and racial composition of the population. Recent restrictive policies have not affected these trends. 相似文献