首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   549篇
  免费   6篇
管理学   53篇
民族学   13篇
人才学   1篇
人口学   38篇
丛书文集   6篇
教育普及   1篇
理论方法论   76篇
综合类   2篇
社会学   308篇
统计学   57篇
  2023年   4篇
  2020年   6篇
  2019年   16篇
  2018年   9篇
  2017年   20篇
  2016年   13篇
  2015年   11篇
  2014年   14篇
  2013年   93篇
  2012年   14篇
  2011年   21篇
  2010年   16篇
  2009年   14篇
  2008年   17篇
  2007年   18篇
  2006年   14篇
  2005年   15篇
  2004年   16篇
  2003年   13篇
  2002年   15篇
  2001年   18篇
  2000年   10篇
  1999年   8篇
  1998年   5篇
  1997年   12篇
  1996年   7篇
  1995年   7篇
  1994年   7篇
  1993年   3篇
  1992年   5篇
  1991年   4篇
  1990年   5篇
  1989年   6篇
  1988年   7篇
  1987年   4篇
  1986年   4篇
  1985年   7篇
  1984年   9篇
  1981年   8篇
  1980年   9篇
  1979年   3篇
  1978年   7篇
  1977年   5篇
  1976年   4篇
  1975年   5篇
  1974年   4篇
  1973年   3篇
  1972年   3篇
  1969年   2篇
  1965年   3篇
排序方式: 共有555条查询结果,搜索用时 0 毫秒
31.
Growing diversity within the US population accentuates the need for the development and implementation of culturally competent services in the field of child welfare. Despite this, few studies exist that examine the effectiveness of culturally sensitive interventions (CSIs) with ethnic minority populations, who are considerably more at risk of developing psychosocial problems including substance and alcohol abuse, delinquency, low academic achievement, and poor self-esteem. With the demand for evidence-based practice it is imperative that we examine the effectiveness of CSIs designed to prevent and treat youth problems. The main goal of this review was to systematically analyze the methodology of recent CSI research with populations of ethnic minority youth in order to evaluate each intervention's ability to adhere to existing standards of evidence-based practice. The fifteen CSI studies examined in this review illustrate progress in their attempt to adhere to the methodological rigor required of evidence-based practice. This review encourages the field of child welfare to position itself analogously with and embrace the movement toward building cultural competence by further investigating the effectiveness of culturally-sensitive interventions with ethnic minority youth.  相似文献   
32.
A tank car derailment in northern California in 1991 spilled metam sodium into the Sacramento River, and released its breakdown product, methyl isothiocyanate (MITC), into the air. This paper describes the risk evaluation process used. Over 240 individuals reported symptoms such as eye and throat irritation, dizziness, and shortness of breath. Reference exposure levels (RELs) for 1 hr were developed for MITC and compared to exposure concentrations. Ocular irritation in cats was the most sensitive endpoint reported. The no observed adverse effect level (NOAEL), divided by an uncertainty factor (UF) of 100, produced an REL of 0.5 ppb of MITC in air to prevent discomfort. An REL to prevent disability was estimated to be 40 ppb. An REL to prevent life-threatening injury was estimated to be 150 ppb. Measured MITC levels ranged from 0.2-37 ppb and estimated peak levels ranged from 140-1600 ppb. The usefulness of RELs for emergency planning is discussed.  相似文献   
33.
34.
Marvin McInnis 《Demography》1971,8(2):195-204
This paper attempts to bring together the demographic literature on differential migration with economic analysis of regional labor mobility. This is done by estimating a rather simple form of economic model of migration by means of linear regression analysis for specific age, education and occupation groups of male interprovincial migrants in Canada. The data on migration are from the population sample of the 1961 Census of Canada. The pattern of migration differentials displayed by these data is broadly similar to that observed in the United States and elsewhere. The regression results suggest that differential migration by education and occupation groups may be accounted for by the varying responsiveness of the various groups to economic gains obtained through migration. While this seems to be generally true of age differentials as well, the relationship of those to regional income differentials is weaker and points up an important role of motivations other than economic gain.  相似文献   
35.
36.
The authors identified the number, type, and frequency of protective behaviors that undergraduate college students who consume alcohol use to prevent alcohol-related consequences. Their hypothesis was that students who engage in more types of protective behaviors with greater frequency would be less likely to experience alcohol-related consequences. Participants consisted of a randomly selected sample of 1,355 undergraduates aged 18 years and older at a large public university. Students completed a mailed questionnaire on alcohol and health behaviors in spring 2002. The findings (after adjustment for covariates) indicated that self-protective behaviors are inversely associated with alcohol-related problems for women but not for men. The influences of gender and racial and ethnic differences are considered in relation to prevention and intervention programs aimed at reducing alcohol-related consequences on college campuses.  相似文献   
37.
This paper describes the results of a comparative study of the factors which inhibited or facilitated the development of the issue of community control of schools in fifty-seven cities in the United States. The findings suggest that the degree to which blacks and the poor were mobilized for political action and the political characteristics of the city were important in determining whether or not the issue entered the political arena.  相似文献   
38.
39.
In this article we discuss the social position of the black middle class and two forms of work stress that appear unique to this group: token stress and social rejection. We outline a research agenda for studying: (1) the relationship between these stressors and mental health in the context of the work environment, and (2) the type of strategies that appear especially efficacious (or problematic) with regard to these problems. We begin the paper with a contextual discussion of the black middle class. We then offer a set of theoretical predictions about the relationship between work stress and mental health among middle class African Americans. We conclude the article with recommendations for future research, and we identify the implications of the research agenda for social policy efforts to diversify the workplace.  相似文献   
40.
Neighborhood disadvantage, stress, and drug use among adults   总被引:1,自引:0,他引:1  
This paper explores the relationships among neighborhood disadvantage, stress, and the likelihood of drug use in a sample of adults (N = 1,101). Using the 1995 Detroit Area Study in conjunction with tract-level data from the 1990 census, we find a positive relationship between neighborhood disadvantage and drug use, and this relationship remains statistically significant net of controls for individual-level socioeconomic status. Neighborhood disadvantage is moderately associated with drug related behaviors, indirectly through increased social stressors and higher levels of psychological distress among residents of disadvantaged neighborhoods. A residual effect of neighborhood disadvantage remains, net of a large number of socially relevant controls. Finally, results from interactive models suggest that the relationship between neighborhood disadvantage and drug use is most pronounced among individuals with lower incomes.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号