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   183814篇
  免费   8277篇
  国内免费   157篇
  2020年   2788篇
  2019年   3440篇
  2018年   3645篇
  2017年   4050篇
  2016年   4675篇
  2015年   3921篇
  2014年   4803篇
  2013年   23434篇
  2012年   4789篇
  2011年   3969篇
  2010年   3987篇
  2009年   4816篇
  2008年   4176篇
  2007年   3738篇
  2006年   4216篇
  2005年   4162篇
  2004年   3654篇
  2003年   3321篇
  2002年   3078篇
  2001年   3940篇
  2000年   3830篇
  1999年   3568篇
  1998年   2876篇
  1997年   2706篇
  1996年   2623篇
  1995年   2455篇
  1994年   2411篇
  1993年   2366篇
  1992年   2984篇
  1991年   2796篇
  1990年   2665篇
  1989年   2535篇
  1988年   2505篇
  1987年   2464篇
  1986年   2497篇
  1985年   2717篇
  1984年   2719篇
  1983年   2471篇
  1982年   2407篇
  1981年   2391篇
  1980年   2245篇
  1979年   2450篇
  1978年   2293篇
  1977年   2240篇
  1976年   2051篇
  1975年   2234篇
  1974年   2329篇
  1973年   2242篇
  1972年   1804篇
  1971年   1705篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
951.
952.
Young and older adults were presented with pictures for study. Their recognition of the information was tested at five retention intervals: immediately, and 48 hr, 1 week, 2 weeks, and 4 weeks later. The main finding of interest was that picture recognition did not show an age-related decline until the 1-week retention interval.  相似文献   
953.
Aging has previously been shown to produce a generalized proportional slowing of all cognitive operations. In contrast, the present results suggested that Alzheimer's disease produces a disproportionate reduction in the speed with which patients carry out one or more mental operations. The tasks that demented patients found particularly difficult involved either a self-directed search of their lexicon or the use of familiarity information.  相似文献   
954.
I investigated adult age differences in the efficiency of feature-extraction processes during visual word recognition. Participants were 24 young adults (M age = 21.0 years) and 24 older adults (M age = 66.5 years). On each trial, subjects made a word/nonword discrimination (i.e., lexical decision) regarding a target letter-string that was presented as the final item of a sentence context. The target was presented either intact or degraded visually (by the presence of asterisks between adjacent letters). Age differences in lexical decisions speed were greater for degraded targets than for intact targets, suggesting an age-related slowing in the extraction of feature-level information. For degraded word targets, however, the amount of performance benefit provided by the sentence context was greater for older adults than for young adults. It thus appears that an age-related deficiency at an early stage of word recognition is accompanied by an increased contribution from semantic context.  相似文献   
955.
Consideration and use of remarriage as a response to cope with the death of a husband was examined in 39 women who had been widowed and had subsequently remarried, 192 widows who had considered remarriage but had not yet remarried, and 420 widows who had not considered remarriage. Controlling for age, we found that women who had remarried reported fewer current concerns than did the other two groups. Furthermore, we found that women who retrospectively recalled the most concerns immediately after the death of the spouse were the ones who eventually remarried. The remarried group believed that they were experiencing significantly fewer concerns now than they had after the spouse's death; the women who had not considered remarriage believed that they were experiencing the same number of concerns now as before; and those women who had considered remarriage believed that they were experiencing significantly more concerns. Implications for remarriage as a coping mechanism for widowhood and the relation of age to remarriage decisions are discussed.  相似文献   
956.
957.
In this archival study the authors sought to determine the relationship, if any, between counseling outcomes and the topical focus in career counseling. Twenty-two counselors saw 46 adult clients at a community-based clinic for an average of eight sessions. Counseling outcome and topical focus (the extent to which the actual content of counseling sessions reflected relatively more vocationally or personally focused topics) were assessed from follow-up questionnaires to former career clients and from trained raters' evaluations of the counselors' written progress notes. Results showed that, from the counselors' perspective, outcomes were better when the focus of the sessions was relatively more vocational than personal and when relatively more interviews were held. Client satisfaction, on the other hand, was predictable only from the counselor's level of experience. Satisfaction with occupational status was not associated with any of the client, counselor, or treatment factors. Discussion focuses on the contribution of the results to career counseling practice and on the feasibility and validity of retrospective, archival research.  相似文献   
958.
Counselors are in ideal positions to help change attitudes toward viewing menopause as a time of positive change, rather than a time of psychological distress. Following definitions and a review of historical, sociological, psychological, and attitudinal factors that account for negative responses associated with menopause, recommendations for counselor interventions are proposed.  相似文献   
959.
A 6-day gender role workshop for adult men and women, using the phases of the gender role journey, is presented. The workshop's curriculum and process are described, including its assumptions, norms, and media. Movie clips, music, music videos, and academic content were used to promote participants' learning in both the cognitive and affective domains. Systematic follow-up evaluations of participants ( N =84) in three separate workshops are reported using Likert scaled questions. These evaluations assessed participants' personal learning, emotional reactions, and the workshop's overall impact over l-month and 1-and 2-year follow-up periods. Results indicate that participants were affected personally and professionally over the various time periods.  相似文献   
960.
There appears to be a strong relationship between mass media portrayals of violence and real-life violence itself. This article reviews the available literature on the effects of media treatment of sports violence; analyzes the theoretical explanations for this treatment; and makes proposals on how the problems of both sports violence and its media coverage may be remedied, with a particular focus on amateur hockey in Canada.  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