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   14096篇
  免费   425篇
  国内免费   15篇
管理学   1740篇
民族学   88篇
人才学   4篇
人口学   1230篇
丛书文集   149篇
理论方法论   1323篇
综合类   701篇
社会学   7507篇
统计学   1794篇
  2023年   76篇
  2022年   65篇
  2021年   114篇
  2020年   228篇
  2019年   277篇
  2018年   358篇
  2017年   509篇
  2016年   343篇
  2015年   284篇
  2014年   340篇
  2013年   2217篇
  2012年   521篇
  2011年   504篇
  2010年   428篇
  2009年   358篇
  2008年   436篇
  2007年   453篇
  2006年   446篇
  2005年   391篇
  2004年   321篇
  2003年   276篇
  2002年   294篇
  2001年   359篇
  2000年   298篇
  1999年   297篇
  1998年   219篇
  1997年   176篇
  1996年   174篇
  1995年   185篇
  1994年   169篇
  1993年   181篇
  1992年   204篇
  1991年   203篇
  1990年   193篇
  1989年   169篇
  1988年   176篇
  1987年   198篇
  1986年   156篇
  1985年   164篇
  1984年   180篇
  1983年   160篇
  1982年   159篇
  1981年   134篇
  1980年   117篇
  1979年   127篇
  1978年   96篇
  1977年   81篇
  1976年   95篇
  1975年   111篇
  1974年   88篇
排序方式: 共有10000条查询结果,搜索用时 62 毫秒
991.
The authors examined the impact of pharmaceutical companies' advertisements on college students' perceptions of depression and concomitant treatment with antidepressants among 13 male and 31 female undergraduates from a midwestern university. The students were randomly assigned to groups that read either pharmaceutical company advertisements or scientific information about depression and its treatment. The analysis revealed that 40% of the women in the advertisement condition as opposed to 1 woman (6%) in the scientific condition rated themselves as having mild, moderate, or severe depression on the Beck Depression Inventory, second edition. Women in the advertisement condition were significantly more likely to believe that depression required treatment with antidepressant medication and were more willing than women in the scientific condition to suggest antidepressant treatment to others.  相似文献   
992.
993.
Underemployment of people with visual impairments is an important problem in the world of work. Barriers to successful employment include the lack of informed decision making concerning AT as a workplace accommodation. Choosing effective Assistive Technology (AT) as an accommodation solution is imperative to successful employment of individuals with vision impairments. While not all jobs require AT as a part of an accommodation, when AT is needed, an informed choice is the best approach. This article describes the five step process for selecting appropriate AT for individuals with vision impairments in workplace accommodations developed by the Job Accommodation Network (JAN). Cases from the JAN database that involve people with vision impairments were examined. Resources to enable readers to further evaluate and implement effective AT solutions are provided.  相似文献   
994.
For the past two years, the Department of Occupational Therapy at the University of Haifa has offered an online course to third year occupational therapists on the topic of Ergonomics for Health Care Professionals. The development and implementation of this course was funded by the Israeli Ministry of Education. Unique teaching materials, developed and uploaded to the University's server via "High Learn", included interactive and self-directed documents containing graphics, animations, and video clips. Extensive use was made of the discussion forum and survey tools, and students submitted all assignments online. For the final topic, an expert in ergonomics from Boston University delivered a lecture via two-way videoconferencing. The course site included comprehensive library listings in which all bibliographic materials were made available online. Students accessed course materials at the University in a computer classroom and at home via modem. In an accompanying research study, the frequency of student usage of the various online tools was tracked and extensive data were collected via questionnaires documenting students' demographic background, preferred learning style, prior usage of technology, satisfaction with the course and academic achievement. This paper focuses on the results of the research study that examined how the students responded to and coped with teaching material presented and accessed in this format.  相似文献   
995.
Vallerand et al. (2003) have proposed that individuals can have two distinct types of passion toward an activity. Harmonious passion, an internal force leading one to choose to engage in the activity, is proposed to be associated with positive consequences. Obsessive passion, an internal pressure forcing one to engage in an activity, is posited to be associated with negative consequences. The present study sought to determine the role of the two types of passion in various cognitive and affective states associated with dependence and problems with gambling. Participants (n = 412) were recruited at the Montréal Casino and given a questionnaire measuring passion toward gambling, as well as consequences associated with dependence and problem gambling. Results showed that obsessive passion for gambling predicted poorer vitality and concentration in daily tasks, as well as increased rumination, anxiety, negative mood, guilt, and problem gambling. These relations were not found for harmonious passion for gambling. Results are discussed in light of the motivational approach to passion (Vallerand et al., 2003).  相似文献   
996.
997.
Circumstantial evidence places the p66 isoform of the adapter protein Shc in a position to mediate the accelerated aging phenotype displayed by mice expressing shortened forms of the tumor suppressor protein p53. We present a model in which p66(shc) may be responsible for integrating signals from the p53 pathway with signals from the insulin-like growth factor-1/Daf pathway in mammals. A full understanding of how interactions between p53 and p66(shc) affect longevity will require the production of animals with mutations in the genes encoding both proteins.  相似文献   
998.
A conflict management program developed to support the transition from a closed to open society in postcommunist eastern and central Europe focuses on the future leaders of this region: adolescents.  相似文献   
999.
Participation in organized out-of-school activities leads to long-term psychosocial and educational benefits for young people. Now we're learning which features of these activities best support individual children.  相似文献   
1000.
The complex Bingham distribution is relevant for the shape analysis of landmark data in two dimensions. In this paper it is shown that the problem of simulating from this distribution reduces to simulation from a truncated multivariate exponential distribution. Several simulation methods are described and their efficiencies are compared.  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