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41.
The technological approach to risk regulation seeks to lessen the incidence of mortality and morbidity by modifying environmental conditions. Insofar as risk-taking behavior is purposive, social scientists have predicted that technological progress may be negated by various forms of risk compensation. The validity of this hypothesis is tested in the transportation sector with data from the U.S. on the effects of new mandatory safety-belt-use laws. A fixed-effects model of traffic fatality counts is estimated using pooled data from 50 states during the 1975–1987 period. Results suggest that such laws have reduced mortality among car occupants to a degree that is compatible with the predictions of technologists. However, there is weak evidence of increased mortality among some nonoccupants, a pattern predicted by risk-compensation theorists. The lifesaving effects of belt-use laws are largest in states that permit primary police enforcement and appear to be somewhat larger for front-seat occupants age 21 and under. Although offsetting behavior appears to be small relative to lifesaving effects, it may take several more years for any compensatory behavior to achieve a new equilibrium.This research was supported in part by a grant from the Centers for Disease Control to the New England Injury Prevention Research Center.  相似文献   
42.
This article adopts a comparative perspective on policies to increase labour force participation of single mothers. Australia's orientation is briefly explored within the context of other major English-speaking countries (the United States, Britain and Canada), and the common emphasis in the policies on providing employment services and reducing poverty traps for Australia and Canada's largest province (Ontario) is then examined. While the potential of these approaches to increase labour force participation is found to be limited, the comparison suggests that Canada would do well to follow some of the recent anti-poverty measures Australia has adopted. Australia, however, appears to offer a less favourable employment climate for women. The article concludes that both jurisdictions will need to pursue a broader set of policies to respond to the root causes of poverty among women heading families on their own.  相似文献   
43.
Ethylene oxide is a gas produced in large quantities in the United States that is used primarily as a chemical intermediate in the production of ethylene glycol, propylene glycol, non-ionic surfactants, ethanolamines, glycol ethers, and other chemicals. It has been well established that ethylene oxide can induce cancer, genetic, reproductive and developmental, and acute health effects in animals. The U.S. Environmental Protection Agency is currently developing both a cancer potency factor and a reference concentration (RfC) for ethylene oxide. This study used the rich database on the reproductive and developmental effects of ethylene oxide to develop a probabilistic characterization of possible regulatory thresholds for ethylene oxide. This analysis was based on the standard regulatory approach for noncancer risk assessment, but involved several innovative elements, such as: (1) the use of advanced statistical methods to account for correlations in developmental outcomes among littermates and allow for simultaneous control of covariates (such as litter size); (2) the application of a probabilistic approach for characterizing the uncertainty in extrapolating the animal results to humans; and (3) the use of a quantitative approach to account for the variation in heterogeneity among the human population. This article presents several classes of results, including: (1) probabilistic characterizations of ED10s for two quantal reproductive outcomes-resorption and fetal death, (2) probabilistic characterizations of one developmental outcome-the dose expected to yield a 5% reduction in fetal (or pup) weight, (3) estimates of the RfCs that would result from using these values in the standard regulatory approach for noncancer risk assessment, and (4) a probabilistic characterization of the level of ethylene oxide exposure that would be expected to yield a 1/1,000 increase in the risk of reproductive or developmental outcomes in exposed human populations.  相似文献   
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In the June 2007 issue of Significance , John Adams argued for the repeal of seat belt laws. They have never been demonstrated to save lives, he said; and they increase the number of pedestrians and cyclists killed on the roads. Richard Allsop, Oliver Carsten, Andrew Evans and Robert Gifford argue that Parliament should keep the seat belt laws on the statute book and that we should all keep wearing belts whenever we travel in a car, van or coach—and they contest John's statistics.  相似文献   
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This paper derives from an ongoing research project concerned to explore how people living in, going to work in, attending school in, high crime areas manage their routine daily lives. It focuses on one of our research areas in which we argue that the question of the 'fear of crime' is much better understood through an appreciation of how the question of trust manifests itself in that community. In other words, whom you trust, when, and by how much, mediate the way in which people living in this area manage their routine daily lives and within that their sense of security.  相似文献   
48.
This article introduces and criticises Michel Maffesoli's attempt to formulate a post-modern sociology for post-modern times. While arguing that Maffesoli's sociology is suggestive and insightful about many aspects and features of late-modern life this article, nonetheless, questions whether Maffesoli's approach should be accepted as a fruitful sociological paradigm which others should take up uncritically. Moreover, it will be argued that Maffesoli's approach is an ultimately incoherent and one-sided approach to studying the ‘postmodern condition’ in that it does not escape the problem of ‘performative contradiction’ identified by the likes of Habermas, Giddens and Touraine. That is to say, Maffesoli has produced a one-sided and flattened out image of modernity that cannot account for the possibility of social and political critique.  相似文献   
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Suicide ideation among a stratified sample of rural and urban adolescents   总被引:1,自引:1,他引:0  
This study examined factors associated with sucidal ideation among a stratified sample of rural and urban adolescents. Data was collected on 1,728 eighth and tenth grade southern Nevada students from 23 schools. No overall differences were found between rural and urban adolescents, although results did indicate that grade, gender, and school achievement variations exist between rural and urban student populations. Implications for social workers and other youth service providers are discussed.  相似文献   
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