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   889篇
  免费   18篇
管理学   144篇
民族学   1篇
人口学   117篇
丛书文集   15篇
理论方法论   79篇
综合类   13篇
社会学   421篇
统计学   117篇
  2020年   9篇
  2019年   7篇
  2018年   19篇
  2017年   20篇
  2016年   14篇
  2015年   10篇
  2014年   22篇
  2013年   156篇
  2012年   24篇
  2011年   24篇
  2010年   20篇
  2009年   22篇
  2008年   25篇
  2007年   13篇
  2006年   14篇
  2005年   42篇
  2004年   20篇
  2003年   18篇
  2002年   27篇
  2001年   16篇
  2000年   17篇
  1999年   16篇
  1998年   11篇
  1997年   20篇
  1996年   10篇
  1995年   9篇
  1994年   8篇
  1993年   14篇
  1992年   16篇
  1991年   21篇
  1990年   16篇
  1989年   16篇
  1988年   22篇
  1987年   10篇
  1986年   11篇
  1985年   14篇
  1984年   12篇
  1983年   9篇
  1982年   16篇
  1981年   11篇
  1980年   7篇
  1979年   12篇
  1978年   9篇
  1977年   14篇
  1976年   9篇
  1975年   12篇
  1974年   7篇
  1973年   7篇
  1970年   3篇
  1969年   4篇
排序方式: 共有907条查询结果,搜索用时 47 毫秒
131.
ABSTRACT

Objective: The present study extends research on campus smoking bans by examining where smokers are violating the policy at a large university in the southeastern region of the United States. Participants: The data collection was conducted by one graduate student from the university in August of 2014. Methods: A global positioning system device was used to collect the geo-coordinates of littered cigarette butts as a proxy measure for smoking violations. Results: A hot spot analysis found a number of spatial concentrations on campus, largely around classroom and administrative buildings along with parking lots and garages. Conclusions: The implications of such findings can direct enforcement to target these areas in order to reduce offenses and fulfill the initial goals of policy-makers and university administrators who support smoke-free campuses.  相似文献   
132.
Results of a multigroup confirmatory factor analysis (N= 686) indicated factorial invariance of a 3‐factor model of the Indecision scale of the Career Decision Scale (CDS; Osipow, Carney, Winer, Yanico, & Koschier, 1976 ). Differential item function was not observed when ΔCFI (comparative fit index) was used for comparison of models, thus indicating strong measurement invariance across gender. Men had significantly greater latent means for all 3 dimensions of career indecision. Given the multidimensional structure, use of the CDS may provide an initial step to help practitioners identify possible factors that are responsible for a client's career indecision. Clients may need assistance for initiating a career search, information to help them identify career possibilities for a chosen major, or detailed information concerning several possible careers that are under consideration.  相似文献   
133.
The multimedia biography tells the story of the life of an elderly person with a cognitive impairment in motion picture format. The multimedia biography combines family photographs, film clips, audio narration, and music. It is intended to be screened on an ongoing basis to provide spaces for reminiscence and communication between cognitively impaired persons and their families. Using a production process in which we collaborated with family caregivers, we created 12 multimedia biographies for persons having Alzheimer's disease or mild cognitive impairment. This article describes our production and screening processes. We also share lessons learned from the multimedia biography research to assist practitioners, families, or researchers who wish to use similar technologies and processes for eliciting and sharing life stories.  相似文献   
134.
The purpose of this article is to present a family intervention model to family service providers that builds on previous research in areas of social support and family problem solving. The Family Outreach Model provides a set of strategies for engaging and working with families in five phases of family coping at different points in time in the family's life. The strategies reflect intentional choices by family service providers about both collaborative and directive styles of therapeutic alliance and highlights ways to determine which style best fits with what specific families want and need, depending on the manner of family coping that it is using. Implications for programs and public policy are presented.  相似文献   
135.
Data from the nationally representative Early Childhood Longitudinal Survey, Kindergarten Class of 1998–1999 (ECLS–K) involving more than 300 children residing in stepfamilies from kindergarten through 5th grade were used to test the usefulness of social capital theory for understanding the academic improvement of young children over 2 points in time. For change scores in reading, the model explained 34% of the variance and for math, 33% of the variance. Findings are summarized in light of implications for stepparents, researchers, and policymakers.  相似文献   
136.
The continuing evolution of information and communication technologies (ICTs), such as Internet-connected computers and cellular phones, provides a means for increased work/home permeability and for current work/home boundaries to be redefined as workers can potentially be accessible by employers and family/friends at all times. This transformation of work/home boundaries can open the individual to increased levels of negative spillover, wherein aspects of one role negatively impact or impede upon another. This investigation uses data from the Work-Life and Technology Use Survey to determine if ICT use plays a role in defining work/home boundaries and serves as a significant predictor of negative spillover in both the work-to-home and home-to-work directions. Results show that frequency of engaging in ICT-related activities (e.g. checking email and using Facebook) is associated with negative spillover in both directions, suggesting that ICTs may play a significant role in facilitating negative work/home spillover.  相似文献   
137.
In our study we used a two-step cluster analytic approach to identify personality typologies for conservative Christians seen in intensive marital therapy (N = 207). Sixteen Personality Factor Fifth Edition results revealed significant personality differences based on gender as well as five significantly different personality clusters: (1) abstract, deferential, trusting, and tolerates disorder; (2) reactive and deferential; (3) reserved, abstract, serious, grounded, traditional, and self-reliant; (4) grounded; and (5) socially bold, abstracted, forthright, and open to change. Conclusions are drawn related to how these results compare with other personality studies in the literature and how these differing personality types might fit together in Christian marriage dyads.  相似文献   
138.
We surveyed National Science Foundation (NSF)-funded research in Mississippi to determine the economic extent of research damage and delays due to Hurricane Katrina. While several facilities were physically damaged, we found that the largest effects were time delays and missed opportunities. While psychological factors were not part of the original economic impact study, it became clear that they played an important role. Specifically, the Principal Investigator's (PI's) attitude of “just another delay” was one cultural barrier to fully accounting for the cost of these research delays. We concluded that Principal Investigators, with the assistance of funding agencies, should be better trained to measure time and opportunity costs associated with their research, so future disaster recovery efforts can more fully address those needs.  相似文献   
139.
In developed countries, mortality decline is decelerating at younger ages and accelerating at old ages, a phenomenon we call “rotation.” We expect that this rotation will also occur in developing countries as they attain high life expectancies. But the rotation is subtle and has proved difficult to handle in mortality models that include all age groups. Without taking it into account, however, long-term mortality projections will produce questionable results. We simplify the problem by focusing on the relative magnitude of death rates at two ages (0 and 15–19) while making assumptions about changes in rates of decline at other ages. We extend the Lee-Carter method to incorporate this subtle rotation in projection. We suggest that the extended Lee-Carter method could provide plausible projections of the age pattern of mortality for populations, including those that currently have very high life expectancies. Detailed examples are given using data from Japan and the United States.  相似文献   
140.
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