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   18695篇
  免费   219篇
管理学   2239篇
民族学   101篇
人才学   6篇
人口学   1728篇
丛书文集   106篇
教育普及   2篇
理论方法论   1679篇
现状及发展   1篇
综合类   234篇
社会学   9168篇
统计学   3650篇
  2023年   110篇
  2022年   78篇
  2021年   102篇
  2020年   316篇
  2019年   503篇
  2018年   456篇
  2017年   635篇
  2016年   460篇
  2015年   350篇
  2014年   428篇
  2013年   3101篇
  2012年   649篇
  2011年   567篇
  2010年   455篇
  2009年   428篇
  2008年   489篇
  2007年   491篇
  2006年   454篇
  2005年   413篇
  2004年   410篇
  2003年   382篇
  2002年   384篇
  2001年   464篇
  2000年   382篇
  1999年   375篇
  1998年   307篇
  1997年   278篇
  1996年   286篇
  1995年   272篇
  1994年   257篇
  1993年   248篇
  1992年   289篇
  1991年   287篇
  1990年   258篇
  1989年   257篇
  1988年   243篇
  1987年   226篇
  1986年   218篇
  1985年   246篇
  1984年   234篇
  1983年   233篇
  1982年   177篇
  1981年   155篇
  1980年   170篇
  1979年   169篇
  1978年   141篇
  1977年   140篇
  1976年   122篇
  1975年   115篇
  1974年   96篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
While there is a global shift towards smaller families, some groups maintain relatively high fertility rates. The 2013 New Zealand census data were used to investigate the nature of fertility between ethnicities in New Zealand. The NZ Deprivation Index 2013 was used as a measure of socioeconomic status to determine the relationships with fertility. The results mirror research outside of New Zealand in that socioeconomic status is inversely correlated to fertility. Using crude average fertility rates, sole-ethnicity Pasifika and Māori ethnic groups still have substantially higher fertility than sole-ethnicity Europeans and Asians ethnic groups, even when simultaneously accounting for age, socioeconomic status, education, and religious affiliation. Christians have more children than individuals reportedly without any religion, and fertility rates drop on average for mothers who have higher formal qualifications. Our findings suggest that cultural, or other ethnic-specific factors differentially affect fertility for Māori, Pasifika, New Zealand European, and Asians as aggregated ethnic categories, respectively.  相似文献   
52.
53.
Unusual events, beyond mere coincidences, may occur during the course of psychotherapy. Yet, clinical training often does not prepare therapists how to understand and potentially engage with these encounters. The aim of this report is to explore the emergence of synchronistic events in therapy, while providing two clinical case composites to illustrate the author’s central points. Drawing on the Celtic concept of “thin places,” a new understanding of synchronicities and the therapeutic relationship is offered.  相似文献   
54.
Correspondence to Bruce A. Thyer, Ph.D., School of Social Work, The University of Georgia, Athens, G A 30602, USA. Summary Critics of applying conventional quantitative research methodsto the problems of social work practice research have ignoredthe considerable progress which has been achieved during thepast decade in scientifically documenting the effectivenessof social services. A set of First Principles of Practice Researchis outlined for use by researchers in the design and conductof practice research, and for use by the consumers of researchto evaluate the methodological rigour of practice experiments.The advocates of qualitative research are urged to provide theprofession with similar positive examples of research on theoutcomes of social work practice, and to develop explicit guide-linesfor the conduct of qualitative studies.  相似文献   
55.
56.
This article describes the development and evaluation of an intergenerational service-learning course designed to promote social work gerocompetencies. Service-learning opportunities were structured into the course, including an optional evidence-based falls prevention program, for older adults, entitled A Matter of Balance (MOB). Significant differences between pre- and posttest scores on the Geriatric Social Work Competency Scale (GSWCS) were noted for students in the service learning course (n = 13). Once MOB was introduced as an independent variable, the MOB participants scored the highest mean posttest scores for 2 GSWCS domains: values, ethics, and theoretical perspectives; and intervention. The benefits of utilizing social work gerocompetencies to guide course objectives, content, and student outcomes are discussed.  相似文献   
57.
58.
Sustained mass media campaigns have been recommended to stem the tobacco epidemic in the United States. Propensity score matching (PSM) was used to estimate the effect of awareness of a national smoking cessation media campaign (EX) on quit attempts and cessation-related cognition. Participants were 4,067 smokers and recent quitters aged 18-49 in targeted U.S. media markets. Controlling for potential confounders through PSM and regression analysis, confirmed awareness of EX was not significantly associated with either outcome at 6-month follow-up. Matched analyses excluding 217 quitters resulted in a significant effect of EX on both outcomes.  相似文献   
59.
The preceding critique [1] of the paper “The Information Problems in Organizations: A Research Model for the Value of Information and Information Systems” [3], reaches general conclusions with respect to the original paper and the applicability of economics to MIS research. These conclusions are based on arguments developed at a different level of analysis than that used in the original paper, and without considering the goals and intent of the original paper. The differences between the critique and the original paper are highlighted.  相似文献   
60.
In this paper, we demonstrate how public opinion surveys can be designed to collect information pertinent to computational behavior modeling, and we present the results of a public opinion and behavior survey conducted during the 2009–2010 H1N1 influenza pandemic. The results are used to parameterize the Health Belief Model of individual health‐protective decision making. Survey subjects were asked questions about their perceptions of the then‐circulating influenza and attitudes towards two personal protective behaviors: vaccination and avoidance of crowds. We empirically address two important issues in applying the Health Belief Model of behavior to computational infectious disease simulation: (1) the factors dynamically influencing the states of the Health Belief Model variables and (2) the appropriateness of the Health Belief Model in describing self‐protective behavior in the context of pandemic influenza.  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