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   5236篇
  免费   102篇
  国内免费   3篇
管理学   554篇
民族学   39篇
人口学   436篇
丛书文集   27篇
理论方法论   484篇
综合类   94篇
社会学   2440篇
统计学   1267篇
  2023年   40篇
  2022年   25篇
  2021年   34篇
  2020年   95篇
  2019年   182篇
  2018年   148篇
  2017年   249篇
  2016年   148篇
  2015年   130篇
  2014年   147篇
  2013年   1057篇
  2012年   189篇
  2011年   157篇
  2010年   102篇
  2009年   122篇
  2008年   132篇
  2007年   125篇
  2006年   99篇
  2005年   101篇
  2004年   95篇
  2003年   84篇
  2002年   109篇
  2001年   108篇
  2000年   88篇
  1999年   104篇
  1998年   86篇
  1997年   74篇
  1996年   66篇
  1995年   84篇
  1994年   62篇
  1993年   62篇
  1992年   72篇
  1991年   71篇
  1990年   76篇
  1989年   66篇
  1988年   45篇
  1987年   48篇
  1986年   53篇
  1985年   62篇
  1984年   60篇
  1983年   44篇
  1982年   41篇
  1981年   34篇
  1980年   44篇
  1979年   45篇
  1978年   38篇
  1977年   26篇
  1976年   22篇
  1974年   21篇
  1971年   21篇
排序方式: 共有5341条查询结果,搜索用时 15 毫秒
991.
On long-term mortality trends in the United States, 1850–1968   总被引:1,自引:0,他引:1  
S. L. N. Rao 《Demography》1973,10(3):405-419
This study of United States life tables analyzes the process of mortality transition during 1850–1968. Special features of the study are (1) a phase-specific, rather than an age-specific, analysis of mortality and (2) use of measures based on person-years of life (nL x ) in phase-intervals, rather than survival rates (nPx) or expectation of life at given ages (e x o). The analysis suggests that the historical transition of mortality in the United States can be described as a three-stage process: an initial stage of slow improvement in life expectancy during 1850–1900, a second stage of rapid improvement during 1900–1950, and a third stage of slower improvement since 1950. Quantitative measures of rapidity of mortality decline in the several phases indicate that they are not identical for all phases and in all stages. The analysis also suggests that there have been rapid changes in the components of overall mortality differentials by sex and race in the United States. The paper draws attention to the need for studies of factors in variations of mortality at ages beyond 50 in the United States population subgroups.  相似文献   
992.
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   
993.
Living with persistent poverty is toxic for one’s psychological health. This study examined SES, income, neighborhood disadvantage, and poverty-related stress as predictors of a wide range of psychological problems including anxiety, depression, aggression, relationship problems, physical problems, and trouble with the law. Longitudinal analyses were conducted with a low-income multiethnic sample of 98 families recruited from the greater Denver, CO metropolitan area (300 family members: 136 adults, 82 preadolescents, 82 adolescents) using hierarchical linear modeling to predict all eight ASEBA narrow band syndromes. Analyses showed that poverty-related stress was directly related to anxious/depressed symptoms and social problems and interacted with prior symptoms, contributing to worsening symptoms for delinquency, attention problems, somatic complaints, and anxious/depressed symptoms. Hollingshead SES also had direct predictive effects for certain syndromes, though these effects were in the opposite direction predicted. In contrast, lower income-to-needs predicted more problems as expected. Neighborhood disadvantage also predicted psychological syndromes. Developmental differences are discussed. Our data show that parents are not the only family members who are affected by stress from living in poverty. SES, neighborhood disadvantage and poverty-related stress take a toll on children, adolescents, and adults.  相似文献   
994.
Both binge eating disorder (BED) and pathological gambling (PG) are characterized by impairments in impulse control. Subsyndromal levels of PG have been associated with measures of adverse health. The nature and significance of PG features in individuals with BED is unknown. Ninety-four patients with BED (28 men and 66 women) were classified by gambling group based on inclusionary criteria for Diagnostic and Statistical Manual-IV (DSM-IV) PG and compared on a range of behavioral, psychological and eating disorder (ED) psychopathology variables. One individual (1.1% of the sample) met criteria for PG, although 18.7% of patients with BED displayed one or more DSM-IV criteria for PG, hereafter referred to as problem gambling features. Men were more likely than women to have problem gambling features. BED patients with problem gambling features were distinguished by lower self-esteem and greater substance problem use. After controlling for gender, findings of reduced self-esteem and increased substance problem use among patients with problem gambling features remained significant. In patients with BED, problem gambling features are associated with a number of heightened clinical problems.  相似文献   
995.
996.
The Value of Seeking Financial Advice   总被引:1,自引:0,他引:1  
Retirement planning data gathered from an online survey at a large university in October 2009 are used to examine differences in a variety of retirement planning measures between people who have and have not met with a financial advisor. Problems of self-selection and endogeneity are addressed through the use of propensity scores. The study’s major finding is that working with an advisor is related to several important financial planning activities, including goal setting, calculation of retirement needs, retirement account diversification, use of supplemental retirement accounts, accumulation of emergency funds, positive behavioral responses to the recent economic crisis, and retirement confidence. Use of a financial advisor was not related to self-reported retirement savings or short-term growth in retirement account asset values.  相似文献   
997.
The Maid, a Singapore-made horror film featuring a foreign domestic worker as its protagonist, was released in 2005 to very favourable reviews in the local press. The critical audience generally used the film to praise the development of the local film industry while ignoring the social commentary of the foreign domestic worker experience in Singapore. This paper aims to address this lack of commentary on the issues and circumstances surrounding foreign domestic service in The Maid. Doing so reveals a multilayered representation of order in Singapore based firmly on ethnicity and class, where the images of foreign maids are dramatised, reconstructed and consumed in various discursive forms by various social agents.  相似文献   
998.
BANANAS, Inc. is a nonprofit organization that has provided child care resource and referral services for over 35 years. BANANAS emerged as a grassroots effort initiated by a group of female volunteers who sought to build a network of women with children who needed childcare. As the organization developed, its leaders recognized and responded to additional needs, including resource and information sharing, workshops and classes, and political advocacy. Beginning as a collective, BANANAS has grown into a multifaceted service delivery and advocacy nonprofit operating with an annual budget of $12 million. This history of the agency reflects the development of a unique community-based effort, its challenges and rewards, and the multiple successes that this pioneering nonprofit has experienced.  相似文献   
999.
1000.
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