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   1514篇
  免费   113篇
管理学   97篇
民族学   15篇
人口学   145篇
丛书文集   7篇
教育普及   1篇
理论方法论   196篇
综合类   9篇
社会学   1075篇
统计学   82篇
  2024年   3篇
  2023年   34篇
  2022年   13篇
  2021年   16篇
  2020年   63篇
  2019年   80篇
  2018年   99篇
  2017年   111篇
  2016年   87篇
  2015年   74篇
  2014年   73篇
  2013年   265篇
  2012年   89篇
  2011年   75篇
  2010年   41篇
  2009年   48篇
  2008年   58篇
  2007年   59篇
  2006年   47篇
  2005年   40篇
  2004年   28篇
  2003年   31篇
  2002年   34篇
  2001年   24篇
  2000年   18篇
  1999年   11篇
  1998年   7篇
  1997年   10篇
  1996年   5篇
  1995年   6篇
  1994年   5篇
  1993年   14篇
  1992年   5篇
  1991年   7篇
  1990年   3篇
  1989年   2篇
  1987年   8篇
  1986年   2篇
  1985年   5篇
  1984年   4篇
  1983年   5篇
  1982年   3篇
  1980年   2篇
  1979年   2篇
  1976年   3篇
  1974年   1篇
  1972年   1篇
  1971年   1篇
  1968年   2篇
  1967年   1篇
排序方式: 共有1627条查询结果,搜索用时 687 毫秒
821.
822.
823.
Little is known about how mental health services consider the parenting role and the well‐being of children when assessing parents with acute mental illness. This paper investigated how crisis mental health services addressed child well‐being in the Wellington region, New Zealand. This mixed‐method case study included: (i) an audit of the electronic clinical records of all adults presenting to the crisis assessment team; (ii) interviews with 22 key informants; and (iii) a documentary review. We found that data about children were not systematically collected. Less than half of (49 of the 104) the records of patients who were parents included information on their child's well‐being; only six (6%) contained a specified plan for action. The focus for services was the adult patient. Key informants were unclear about their role. They identified inadequate training and institutional support, inflexible funding models and limited availability or inappropriateness of referral services as problems. They saw a need for children to become more visible, for collaborative working to improve the use of existing services and for new funding models, resources and roles. Existing national policy documents contained little guidance and no practice guidelines were in use. These were lost opportunities to improve support for the parenting role and promote child well‐being.  相似文献   
824.
It is well-recognised that workers may have intrinsic—as well as extrinsic—motivations. Previous studies have identified that public sector workers typically have a higher level of intrinsic motivation, compared to workers in the private sector. This paper compares (measures of) intrinsic motivation among 30,000+ workers in the two sectors across 51 countries using data from the World Values Survey. We find that public sector workers exhibit higher intrinsic motivation in many countries, but that this is not a universal relationship. One possibility is that public sector mission may influence whether or not motivated workers choose to work in the sector. In support of this, we show that the level of (public) corruption—which plausibly affects mission—can explain some of the variation across countries in the proportion of motivated workers in the sector.  相似文献   
825.
826.
We present a sharp uniform-in-bandwidth functional limit law for the increments of the Kaplan–Meier empirical process based upon right-censored random data. We apply this result to obtain limit laws for nonparametric kernel estimators of local functionals of lifetime densities, which are uniform with respect to the choices of bandwidth and kernel. These are established in the framework of convergence in probability, and we allow the bandwidth to vary within the complete range for which the estimators are consistent. We provide explicit values for the asymptotic limiting constant for the sup-norm of the estimation random error.  相似文献   
827.
Nonresponse Bias in a Dual Frame Sample of Cell and Landline Numbers   总被引:4,自引:4,他引:0  
We conducted a dual frame survey of landline and cell phonenumbers in 2004 to evaluate the feasibility of including cellphone numbers in random digit dial telephone surveys in theUnited States. By sampling cell phone numbers, the coveragebias associated with households that have only cell phones iseliminated. However, we discovered two major sources of nonresponsebias in the dual frame sample. In an attempt to reduce thesebiases, we applied several different estimation schemes. Buta comparison to the 2004 Current Population Survey Cell PhoneSupplement showed that none of the estimation schemes substantiallyreduced the nonresponse bias of the estimates. We suggest othermethods that might be used in future surveys that include cellphones and discuss the need for additional data collection andresearch on this issue.  相似文献   
828.
This study sought to develop a set of easily obtainable, relevant measures of a community's condition that could be used to guide its suicide prevention efforts. Existing data were gathered across 159 Georgia counties for nine potential social indicators (rates of net migration, divorce, unemployment, violent crimes reported, driving under the influence of alcohol or drugs [DUI] crashes, high school dropouts, Temporary Assistance for Needy Families [TANF], percentage of population aged 65 or older, and percentage of population who are white males) that had been chosen by the communities. Data on the social indicators from 1995 through 1999 were averaged and analyzed to determine their correlation with aggregated 5-year county suicide rates. Results of multivariate modeling procedures showed number of DUI crashes and percentage of the population aged 65 or older to be significant correlates of the suicide rate, controlling for other potential indicators. These preliminary data may provide a useful model of a county's 5-year suicide rate among counties reporting 20 or more suicides. Research with additional indicators and in other states will help determine the generalizability of these findings to other communities.  相似文献   
829.
This paper attempts to understand the sexual behaviors of young, unmarried women living in rural China with a special focus on sexual debut, sexual risk-taking behaviors, and reproductive health consequences. The analysis is based on forty in-depth interviews with young women who had undergone induced abortion as well as information from focus group discussions. Study participants identified pornographic videos and parents' tacit approval and even encouragement as factors instigating their sexual debut. Reasons for unprotected intercourse include spontaneous sexual activity, misconceptions about fertility and the effective use of contraceptives, and the lack of negotiation skills. The results indicate the importance of making reproductive health education more accessible to rural populations in China, a group usually considered to be more traditional and less likely to engage in premarital sex.  相似文献   
830.
Invasive disease secondary to Neisseria meningitidis is a rare but devastating illness among university students. The Advisory Committee on Immunization Practices recommends educating college freshmen about meningococcal disease and vaccinating all college freshmen who live in residence halls. We conducted this survey to gain a better understanding of current immunization rates and factors associated with vaccination.  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