全文获取类型
收费全文 | 909篇 |
免费 | 45篇 |
专业分类
管理学 | 125篇 |
民族学 | 6篇 |
人才学 | 1篇 |
人口学 | 68篇 |
丛书文集 | 6篇 |
理论方法论 | 105篇 |
综合类 | 7篇 |
社会学 | 531篇 |
统计学 | 105篇 |
出版年
2023年 | 8篇 |
2022年 | 5篇 |
2021年 | 9篇 |
2020年 | 21篇 |
2019年 | 31篇 |
2018年 | 31篇 |
2017年 | 37篇 |
2016年 | 37篇 |
2015年 | 25篇 |
2014年 | 34篇 |
2013年 | 136篇 |
2012年 | 22篇 |
2011年 | 25篇 |
2010年 | 31篇 |
2009年 | 24篇 |
2008年 | 22篇 |
2007年 | 33篇 |
2006年 | 22篇 |
2005年 | 35篇 |
2004年 | 22篇 |
2003年 | 27篇 |
2002年 | 25篇 |
2001年 | 18篇 |
2000年 | 16篇 |
1999年 | 19篇 |
1998年 | 15篇 |
1997年 | 16篇 |
1996年 | 9篇 |
1995年 | 10篇 |
1994年 | 6篇 |
1993年 | 9篇 |
1992年 | 14篇 |
1991年 | 15篇 |
1990年 | 7篇 |
1989年 | 6篇 |
1988年 | 6篇 |
1987年 | 12篇 |
1986年 | 6篇 |
1985年 | 8篇 |
1984年 | 8篇 |
1983年 | 12篇 |
1982年 | 10篇 |
1981年 | 5篇 |
1980年 | 7篇 |
1979年 | 12篇 |
1978年 | 5篇 |
1975年 | 4篇 |
1974年 | 8篇 |
1973年 | 5篇 |
1971年 | 5篇 |
排序方式: 共有954条查询结果,搜索用时 452 毫秒
31.
Josiah Cox Russell 《Population studies》2013,67(4):388-404
The study deals with the relationship of population’ to historical processes. Six aspects are selected for consideration: (1) The pattern of demographic factors which help to cause the persistence of particular human physical types in given localities. (2) Social control to maintain population within subsistence limits. (3) The conditions in which such control breaks down. (4) Migration. (5) Major trends in population history. (6) The influence of population on historical development. 相似文献
32.
This article proposes a classification of motivations for collective action based in three of Tetlock's (2002) metaphors of social functionalism (i.e., people as intuitive economists, politicians, and theologians). We use these metaphors to map individual- and group-based motivations for collective action from the literature onto the distinction between individuals who are strongly or weakly identified with their social group. We conclude that low identifiers can be best understood as intuitive economists (supported by both early and recent work on collective action), whereas high identifiers can be best thought of as intuitive politicians or theologians (as recent work on social identity has started to explore). Interestingly, our classification reveals a remarkable lack of attention for the intuitive theologian's motivation for collective action. We therefore develop new hypotheses for future research, and derive recommendations for policy and practice from our analysis. 相似文献
33.
Kunert K King ML Kolkhorst FW 《Journal of psychosocial nursing and mental health services》2007,45(8):30-37
Fatigue is a critical issue for nurses that may lead to medical errors, degradation in performance, decreased mental acuity, and social problems. Poor sleep quality is also a contributing factor in fatigue that nurses experience. Therefore, the purpose of this study was to examine the differences in perceptions of fatigue between night-shift and day-shift nurses, as measured by scores on the Brief Fatigue Inventory (BFI) and to examine differences in sleep quality between the two groups, as measured by responses on the Pittsburgh Sleep Quality Index (PSQI). Univariate analysis of variance showed significant differences between the two groups on the BFI, with the night-shift cohort reporting higher mean scores on the BFI. Significant differences were also found between the two groups on PSQI mean scores, with the night-shift cohort reporting higher mean scores. Findings from this study suggest that night-shift nurses, compared with day-shift nurses, perceived a much higher level of fatigue and had poorer sleep quality. Further research is needed to evaluate interventions that might decrease fatigue in nurses and improve their sleep quality. 相似文献
34.
The widely used methods for estimating adult mortality rates from sample survey responses about the survival of siblings, parents, spouses, and others depend crucially on an assumption that, as we demonstrate, does not hold in real data. We show that when this assumption is violated so that the mortality rate varies with sibship size, mortality estimates can be massively biased. By using insights from work on the statistical analysis of selection bias, survey weighting, and extrapolation problems, we propose a new and relatively simple method of recovering the mortality rate with both greatly reduced potential for bias and increased clarity about the source of necessary assumptions. 相似文献
35.
Svetlana Shpiegel Elizabeth M. Aparicio Bryn King Dana Prince Jason Lynch Claudette L. Grinnell‐Davis 《Child & Family Social Work》2020,25(2):478-487
Few studies have explored the outcomes of adolescent mothers leaving foster care, especially using person‐oriented methods. The current study employed a cluster analysis to identify unique patterns of functioning among adolescent mothers aged 19 (n = 777). Data from the National Youth in Transition Database and the Adoption and Foster Care Analysis and Reporting System were utilized. Findings revealed five subpopulations characterized by distinct constellations of outcomes at age 19. The largest group (43%) exhibited competent functioning across all the domains studied—its members were connected to school and/or employment and did not experience homelessness, substance abuse referrals, or incarceration during the past 2 years (i.e., “resilient”). A relatively small group (12%) exhibited challenges across all the above‐referenced domains, whereas the remaining groups presented challenges in some domains, but not in others. Follow‐up analyses revealed that adolescent mothers classified as resilient at age 19 had the lowest rates of congregate care placements and the highest rates of nonrelative foster care placements at age 17. Moreover, they had lower placement instability and higher rates of extended foster care as compared with members of the other clusters. Implications for practice, policy, and research are discussed. 相似文献
36.
37.
Du Hongfei Zhou Nan Cao Hongjian Zhang Jintao Chen Anli King Ronnel B. 《Social indicators research》2021,154(3):789-813
Social Indicators Research - Previous studies have documented the associations of objective class with either social capital or subjective social status, yet little attention has been paid to the... 相似文献
38.
Belinda Lequertier Gabrielle Simcock Vanessa E. Cobham Sue Kildea Suzanne King 《Infancy》2019,24(3):411-432
This study utilized a natural disaster to investigate the effects of prenatal maternal stress (PNMS) arising from exposure to a severe flood on maternally reported infant social–emotional and behavioral outcomes at 16 months, along with potential moderation by infant sex and gestational timing of flood exposure. Women pregnant during the Queensland floods in January 2011 completed measures of flood‐related objective hardship and posttraumatic stress (PTS). At 16 months postpartum, mothers completed measures describing depressive symptoms and infant social–emotional and behavioral problems (n = 123) and competence (n = 125). Greater maternal PTS symptoms were associated with reduced infant competence. A sex difference in infant behavioral problems emerged at higher levels of maternal objective hardship and PTS; boys had significantly more behavioral problems than girls. Additionally, greater PTS was associated with more behavioral problems in boys; however, this effect was attenuated by adjustment for maternal depressive symptoms. No main effects or interactions with gestational timing were found. Findings highlight specificity in the relationships between PNMS components and infant outcomes and demonstrate that the effects of PNMS exposure on behavior may be evident as early as infancy. Implications for the support of families exposed to a natural disaster during pregnancy are discussed. 相似文献
39.
40.
Weissman Judith D. Russell David Ansah Patricia Jay Melanie 《Population research and policy review》2019,38(3):403-415
Population Research and Policy Review - Few studies of disparities consider logistical hurdles faced by adults with obesity in obtaining needed healthcare. This study compared adults with obesity... 相似文献