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   19375篇
  免费   567篇
管理学   2290篇
民族学   109篇
人才学   6篇
人口学   1845篇
丛书文集   117篇
教育普及   2篇
理论方法论   1810篇
现状及发展   1篇
综合类   241篇
社会学   9837篇
统计学   3684篇
  2023年   103篇
  2022年   81篇
  2021年   104篇
  2020年   302篇
  2019年   473篇
  2018年   487篇
  2017年   699篇
  2016年   494篇
  2015年   371篇
  2014年   461篇
  2013年   3295篇
  2012年   697篇
  2011年   624篇
  2010年   494篇
  2009年   465篇
  2008年   538篇
  2007年   534篇
  2006年   508篇
  2005年   449篇
  2004年   453篇
  2003年   414篇
  2002年   419篇
  2001年   482篇
  2000年   399篇
  1999年   396篇
  1998年   322篇
  1997年   295篇
  1996年   301篇
  1995年   285篇
  1994年   265篇
  1993年   260篇
  1992年   301篇
  1991年   301篇
  1990年   264篇
  1989年   268篇
  1988年   252篇
  1987年   237篇
  1986年   226篇
  1985年   252篇
  1984年   244篇
  1983年   242篇
  1982年   184篇
  1981年   158篇
  1980年   177篇
  1979年   175篇
  1978年   141篇
  1977年   144篇
  1976年   126篇
  1975年   118篇
  1974年   101篇
排序方式: 共有10000条查询结果,搜索用时 781 毫秒
901.
A growing body of research has examined how family dynamics shape residential mobility, highlighting the social—as opposed to economic—drivers of mobility. However, few studies have examined kin ties as both push and pull factors in mobility processes or revealed how the influence of kin ties on mobility varies across sociodemographic groups. Using data on local residential moves from the Panel Study of Income Dynamics (PSID) from 1980 to 2013, we find that location of noncoresident kin influences the likelihood of moving out of the current neighborhood and the selection of a new destination neighborhood. Analyses of out-mobility reveal that parents and young adult children living near each other as well as low-income adult children living near parents are especially deterred from moving. Discrete-choice models of neighborhood selection indicate that movers are particularly drawn to neighborhoods close to aging parents, white and higher-income households tend to move close to parents and children, and lower-income households tend to move close to extended family. Our results highlight the social and economic trade-offs that households face when making residential mobility decisions, which have important implications for broader patterns of inequality in residential attainment.  相似文献   
902.
We examine inferences about old-age mortality that arise when researchers use survey data matched to death records. We show that even small rates of failure to match respondents can lead to substantial bias in the measurement of mortality rates at older ages. This type of measurement error is consequential for three strands in the demographic literature: (1) the deceleration in mortality rates at old ages; (2) the black-white mortality crossover; and (3) the relatively low rate of old-age mortality among Hispanics, often called the “Hispanic paradox.” Using the National Longitudinal Survey of Older Men matched to death records in both the U.S. Vital Statistics system and the Social Security Death Index, we demonstrate that even small rates of missing mortality matching plausibly lead to an appearance of mortality deceleration when none exists and can generate a spurious black-white mortality crossover. We confirm these findings using data from the National Health Interview Survey matched to the U.S. Vital Statistics system, a data set known as the “gold standard” (Cowper et al. 2002) for estimating age-specific mortality. Moreover, with these data, we show that the Hispanic paradox is also plausibly explained by a similar undercount.  相似文献   
903.
In recent years, population health research has focused on understanding the determinants of later-life health. Two strands of that work have focused on (1) international comparisons of later-life health and (2) assessing the early-life origins of disease and disability and the importance of life course processes. However, the less frequently examined intersection of these approaches remains an important frontier. The present study contributes to the integration of these approaches. We use the Health and Retirement Study family of data sets and a cohort dynamic approach to compare functional health trajectories across 12 high-income countries and to examine the role of life course processes and cohort dynamics in contributing to variation in those trajectories. We find substantial international variation in functional health trajectories and an important role of cohort dynamics in generating that variation, with younger cohorts often less healthy at comparable ages than the older cohorts they are replacing. We further find evidence of heterogeneous effects of life course processes on health trajectories. The results have important implications for future trends in morbidity and mortality as well as public policy.  相似文献   
904.
The majority of LGBTQ psychological research focuses on dysfunction. The exclusion of strengths-based perspectives in LGBTQ psychology limits the understanding of LGBTQ mental health. In this article we report experiences that young bisexual and other nonmonosexual people perceive as affirming of their sexual identity. A 28-day, daily diary study was used to investigate whether bisexual-identified participants encountered positive experiences related to their sexual identity, and which type of experiences they perceived to be positive. Using a constructivist grounded theory approach, participants’ experiences were organized according to a social ecological model. Experiences were reported at the intrapersonal, interpersonal, and institutional levels, but most positive sexual identity experiences occurred at the interpersonal level. Implications for positive health outcome research and the integration of positive psychology with LGBTQ psychology are discussed, as well as study limitations.  相似文献   
905.
Young, gay, and bisexual men (YGBM) are at increased risk of family rejection, which is related to HIV infection. What remains unknown is how family rejection leads to HIV risk. In this exploratory study, qualitative interviews were conducted with 21 HIV-positive YGBM aged 18 to 24. Most participants reported family rejection, which decreased instrumental and emotional support and resulted in participants using riskier ways to support themselves, such as engaging in survival sex. Conceptualizing the findings using a family systems framework, we present a tentative conceptual model to describe the potential relationships between family rejection and HIV risk for YGBM.  相似文献   
906.
We examine economic inequality and social differences in infant and child mortality, and fertility responses to food price changes in North Orkney, 1855–1910, using linked vital records. This small population featured a diverse occupational structure, limited land resources, and geographic isolation from mainland Scotland. Segments of Orkney’s non-agricultural working population were living so close to the margin of subsistence in normal years that an increase in food prices in bad years cost the lives of their children. Delayed childbearing, in addition to increased labour intensity, occupational diversification, and poor relief, failed to mitigate the negative effects of unfavourable prices in this group. While previous studies for Western Europe show a strong social gradient in mortality responses to food prices, and for Eastern Asia a strong household gradient, this study shows a strong sectoral gradient, indicating low standards of living for the non-agricultural working population well into the twentieth century.  相似文献   
907.
908.
This study examines the impact of globalisation on inclusive human development in 51 African countries for the period 1996–2011 with particular emphasis on income levels (low income vs. middle income), legal origins (English common law vs. French civil law), resource wealth (oil-rich vs. oil-poor), landlockedness (landlocked vs. unlandlocked), religious domination (Christianity vs. Islam) and political stability (stable vs. unstable). The empirical evidence is based on instrumental variable panel Fixed effects and Tobit regressions in order to control for the unobserved heterogeneity and limited range in the dependent variable. Political, economic, social and general globalisation variables are used. Six main hypotheses are investigated. The findings broadly show that middle income, English common law, oil-poor, unlandlocked, Christian-oriented and politically-stable countries are associated with comparatively higher levels of globalisation-driven inclusive human development. Puzzling findings are elucidated and policy implications discussed.  相似文献   
909.
Understanding the distribution of socioeconomic status (SES) and its temporal dynamics within a population is critical to ensure that policies and interventions adequately and equitably contribute to the well-being and life chances of all individuals. This study assesses the dynamics of SES in a typical rural South African setting over the period 2001–2013 using data on household assets from the Agincourt Health and Demographic Surveillance System. Three SES indices, an absolute index, principal component analysis index and multiple correspondence analysis index, are constructed from the household asset indicators. Relative distribution methods are then applied to the indices to assess changes over time in the distribution of SES with special focus on location and shape shifts. Results show that the proportion of households that own assets associated with greater modern wealth has substantially increased over time. In addition, relative distributions in all three indices show that the median SES index value has shifted up and the distribution has become less polarized and is converging towards the middle. However, the convergence is larger from the upper tail than from the lower tail, which suggests that the improvement in SES has been slower for poorer households. The results also show persistent ethnic differences in SES with households of former Mozambican refugees being at a disadvantage. From a methodological perspective, the study findings demonstrate the comparability of the easy-to-compute absolute index to other SES indices constructed using more advanced statistical techniques in assessing household SES.  相似文献   
910.
We conducted a qualitative study of 1,849 women over age 50 to capture the thoughts, feelings, and attitudes that women at middle age have about their bodies and the experience of aging. Via an open-ended question online survey, four primary themes emerged: (a) the physical and psychological experience of aging; (b) the injustices, inequities, and challenges of aging; (c) the importance of self-care; and (d) a plea for recognition of the need to maintain a contributory role in society. Results highlight the complexities of women’s psychological and physical aspects of aging and point toward important topics worthy of further study in this growing population.  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