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   5216篇
  免费   126篇
管理学   920篇
民族学   41篇
人才学   1篇
人口学   406篇
丛书文集   22篇
理论方法论   614篇
综合类   68篇
社会学   2619篇
统计学   651篇
  2023年   47篇
  2022年   27篇
  2021年   36篇
  2020年   102篇
  2019年   164篇
  2018年   148篇
  2017年   222篇
  2016年   153篇
  2015年   145篇
  2014年   156篇
  2013年   842篇
  2012年   208篇
  2011年   249篇
  2010年   169篇
  2009年   146篇
  2008年   160篇
  2007年   193篇
  2006年   172篇
  2005年   162篇
  2004年   163篇
  2003年   129篇
  2002年   147篇
  2001年   123篇
  2000年   96篇
  1999年   93篇
  1998年   66篇
  1997年   68篇
  1996年   55篇
  1995年   52篇
  1994年   45篇
  1993年   61篇
  1992年   54篇
  1991年   49篇
  1990年   51篇
  1989年   52篇
  1988年   50篇
  1987年   38篇
  1986年   41篇
  1985年   29篇
  1984年   51篇
  1983年   38篇
  1982年   42篇
  1981年   40篇
  1980年   37篇
  1979年   31篇
  1978年   25篇
  1977年   19篇
  1976年   20篇
  1975年   20篇
  1974年   13篇
排序方式: 共有5342条查询结果,搜索用时 15 毫秒
991.
The undercount problem in the decennial census has important implication for social science research based directly or indirectly on census data. Because undercount rates (or coverage rates) vary by age, race, residence, and other factors typically studied in social research, important conceptual difficulties arise in using census results to corroborate sampling frames or to validate survey results. Differential undercount, particularly for analyses based on small areas, could produce substantial variability in prevalence rates in cases where the denominators for those rates are derived from the census. Several examples where the undercount problem arises in social science research, including survey research, are considered. The adjustment problem—whether to adjust, how to adjust, and how much to adjust—is also considered from the point of view of social sicence research.  相似文献   
992.
The last half century has witnessed both in Australia, and elsewhere in the West, first a “baby boom” (and marriage boom) and then a “baby bust” (and marriage bust). Economists, demographers, sociologists and social historians, especially in America, have developed theories to explain these phenomena. Presented to the Annual Meeting of the Population Association of America, New Orleans, 21–23 April 1988.  相似文献   
993.
ABSTRACT

Understanding the nature and consequences of LGBTQ microaggressions is critical to fostering equity and wellbeing among sexual and gender minorities. Yet little guidance is available for researchers seeking psychometrically robust measures of subtle LGBTQ slights, invalidations, and insults. To address this gap, we conducted a scoping review of multi-item quantitative measures that included at least one question addressing LGBTQ microaggressions. This article reports the study characteristics and psychometric properties of 27 original measures we identified and their subsequent adaptations. The article concludes with an assessment of strengths and limitations of LGBTQ microaggression measurement, highlighting aspects of measurement innovation on which future researchers can build. As microaggressions remain a powerful and underexplored mechanism of sexual and gender minority oppression, this review will help to both advance methodological quality in this critical research area and enhance our understanding of how microaggressions manifest in the lives of LGBTQ individuals.  相似文献   
994.
Inhibition of emotional expression has been associated with the incidence and progression of breast cancer and other chronic illnesses. Others have theorized that it may not be repression itself, but rather ambivalence over the expression of emotions that is the important health-related factor. The Women's Health Initiative (WHI), a long-term, national study focusing on disease prevention among postmenopausal women, is unique in its assessment of expression and ambivalence of negative emotion in a large study sample of multiethnic, older women. Psychological factors such as expression of negative emotion and ambivalence about expression of emotion are also determined by social patterning. The current study examined the psychometric properties of the instruments used to measure each construct and variation across race/ethnicity and age. The analysis suggests that the scales can be used with confidence in diverse ethnic and age groups. Examining ambivalence about expression of negative emotion in future longitudinal research will further elucidate its role in predicting disease incidence and recovery, both important in reducing the public health burden of chronic disease.  相似文献   
995.
Migration, fertility, and state policy in Hubei Province, China   总被引:1,自引:0,他引:1  
Despite China s one-child family planning policy, the nation experienced a slight rise in the birth rate in the mid-1980s. Many observers attributed this rise to the heightened fertility of those rural-to-urban migrants who moved without a change in registration (temporary migrants), presumably to avoid the surveillance of family planning programs at origin and destination. Using a sequential logit analysis with life-history data from a 1988 survey of Hubei Province, we test this possibility by comparing nonmigrants, permanent migrants, and temporary migrants. While changing family planning policies have a strong impact on timing of first birth and on the likelihood of higher-order births, migrants generally do not have more children than nonmigrants. In fact, migration tends to lower the propensity to have a child. More specifically, the fertility of temporary migrants does not differ significantly from that of other women.  相似文献   
996.
997.
This paper presents a comprehensive review of available methods for sizing irregular migrant populations as a particular group in the study of hidden populations. Based on the existing body of literature on the subject, a generic classification scheme is developed that divides existing estimation procedures into subcategories like “approaches”, “methods” and “estimation techniques”. For each of these categories, basic principles, methodical strengths and weaknesses, as well as practical problems, are identified and discussed with the use of existing examples. Special emphasis is placed on data requirements, data shortcomings and possible estimation biases. In addition, based on the empirical classification and quality assessment of country-specific estimates developed in the CLANDESTINO research project, the potential and requirements for replicating best practice models in other countries are explored. Finally, a number of conclusions on the appropriate design of estimation projects are offered.  相似文献   
998.
999.
Epidemiological studies have found that young men who have sex with men (YMSM) represent the majority of young people infected with HIV annually in the United States. Further, they are one of the few risk groups to show an increase in the rate of infections in recent years. In addition to these disparities in prevalence and infection rates, there is an inequity in prevention and intervention research on this population. The purpose of this article is to review the existing YMSM literature on HIV epidemiology, correlates of risk, and intervention research. The article concludes that promising future directions for basic research include a focus on multiple clustering health issues, processes that promote resiliency, the role of family influences, and the development of parsimonious models of risk. In terms of intervention research, the article suggests that promising future directions include Internet-based intervention delivery, integration of biomedical and behavioral approaches, and interventions that go beyond the individual level to address partnership, structural, community, and network factors.  相似文献   
1000.
Due to concerns over Thai adolescent risky behaviors, effective prevention strategies are needed. Determining the role neighborhood context plays in program engagement and outcomes may inform these strategies. This study includes 170 mother-adolescent pairs (M = 13.44, SD = .52) in Bangkok, Thailand in a prevention program for adolescent substance use and sexual risk. Neighborhoods were related to engagement, which was critical to outcomes. Neighborhood disorganization was related to confidence in program effects and program completion. Completion was related to increased ATOD communication. Neighborhood cohesion was related to less program enjoyment, while neighborhood social control was related to more enjoyment. Enjoyment was related to increased ATOD communication and formation and monitoring of alcohol rules. Prevention strategies should focus on neighborhood contexts and enhancing engagement.  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