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   7034篇
  免费   297篇
  国内免费   2篇
  2021年   85篇
  2020年   128篇
  2019年   110篇
  2018年   174篇
  2017年   163篇
  2016年   206篇
  2015年   155篇
  2014年   190篇
  2013年   669篇
  2012年   334篇
  2011年   337篇
  2010年   217篇
  2009年   202篇
  2008年   294篇
  2007年   303篇
  2006年   252篇
  2005年   268篇
  2004年   256篇
  2003年   236篇
  2002年   244篇
  2001年   125篇
  2000年   84篇
  1999年   117篇
  1998年   103篇
  1997年   104篇
  1996年   86篇
  1995年   79篇
  1994年   74篇
  1993年   79篇
  1992年   89篇
  1991年   83篇
  1990年   69篇
  1989年   51篇
  1988年   48篇
  1987年   57篇
  1986年   60篇
  1985年   71篇
  1984年   66篇
  1983年   70篇
  1982年   63篇
  1981年   75篇
  1980年   68篇
  1979年   62篇
  1978年   68篇
  1977年   71篇
  1976年   64篇
  1975年   54篇
  1974年   60篇
  1968年   40篇
  1966年   41篇
排序方式: 共有7333条查询结果,搜索用时 15 毫秒
851.
Decision-makers are often faced with inter-temporal choices in which they are required to choose between options that differ in both value of and delay to outcomes. In this study, assumptions of Discounted Utility Theory (DU) were tested within inter-temporal career choices. According to DU, the same discount rate should be applied regardless of the amount of delay and magnitude of the outcome. In addition, DU predicts that, for economic substitutes, the same discount rate should be applied to both commodities. Contrary to assumptions of DU, but consistent with a hyperbolic discounting model, graduating college students’ job choices reflected non-constant discount rates (i.e., Delay Effect) for future salary and preferred tasks. In addition, these students exhibited lower discount rates for salary and percentage of preferred tasks (i.e., Magnitude Effect). Finally, the two were not found to be economic substitutes as there was a low correlation between discount rate for salary and percentage of preferred tasks (i.e., Domain Independence). Implications for employee recruitment and human resource management are discussed.  相似文献   
852.
853.
Suicide research is vitally important, yet—like psychology research more broadly—faces methodological challenges. In recent years, researchers have raised concerns about standard practices in psychological research, concerns that apply to suicide research and raise questions about its robustness and validity. In the present paper, we review these concerns and the corresponding solutions put forth by the “open science” community. These include using open science platforms, pre‐registering studies, ensuring reproducible analyses, using high‐powered studies, ensuring open access to research materials and products, and conducting replication studies. We build upon existing guides, address specific obstacles faced by suicide researchers, and offer a clear set of recommended practices for suicide researchers. In particular, we consider challenges that suicide researchers may face in seeking to adopt “open science” practices (e.g., prioritizing large samples) and suggest possible strategies that the field may use in order to ensure robust and transparent research, despite these challenges.  相似文献   
854.
855.
A patient with sarcoidosis involving predominantly the hypothalamus and fornices was evaluated for dementia. He showed a relative sparing of fund of knowledge and orientation. Memory skills, particularly short-term memory, were severely impaired. Behavioral changes included apathy and a lack of spontaneity. Insight was relatively preserved. The pattern of his deficits showed some similarities to the pattern reported in patients with Huntington's disease and was different from that described in Alzheimer's disease. The dementia caused by subcortical pathology may differ in important respects from that caused by diffuse cortical dysfunction.  相似文献   
856.
857.
858.
859.
860.
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