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   23534篇
  免费   196篇
  2022年   24篇
  2021年   29篇
  2020年   59篇
  2019年   54篇
  2018年   3542篇
  2017年   2881篇
  2016年   2349篇
  2015年   267篇
  2014年   165篇
  2013年   422篇
  2012年   688篇
  2011年   2512篇
  2010年   2585篇
  2009年   1551篇
  2008年   1839篇
  2007年   2286篇
  2006年   151篇
  2005年   333篇
  2004年   264篇
  2003年   193篇
  2002年   157篇
  2001年   83篇
  2000年   125篇
  1999年   72篇
  1998年   70篇
  1997年   58篇
  1996年   43篇
  1995年   27篇
  1994年   34篇
  1993年   35篇
  1992年   49篇
  1991年   34篇
  1990年   55篇
  1989年   33篇
  1988年   49篇
  1987年   42篇
  1986年   24篇
  1985年   35篇
  1984年   28篇
  1983年   33篇
  1981年   23篇
  1980年   27篇
  1979年   45篇
  1977年   21篇
  1976年   28篇
  1975年   23篇
  1974年   24篇
  1972年   22篇
  1971年   25篇
  1968年   27篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
92.
The issue of multiple memory systems is explored. Young and older adults (mean ages = 20 and 71, respectively) named pictures and were tested immediately, 1, 7, or 21 days later. Episodic memory (recognition) for pictures was significantly lower in older relative to young adults and declined systematically across all retention intervals in both age groups. In contrast, procedural memory (repetition priming in picture naming) revealed no reliable age differences. In both age groups, priming declined within the first 24 hr, but unlike recognition, there was no further decrement from 1 to 21 days. There were also within-subject dissociations: The magnitude of priming was equivalent for remembered and forgotten items, and the relation between recognition and priming across intervals was nonmonotic, revealing a reversed association. The findings were interpreted within a multiple-memory-systems framework.  相似文献   
93.
Abstract— The relative predictive accuracy of humans and statistical models has long been the subject of controversy even though models have demonstrated superior performance in many studies. We propose that relative performance depends on the amount of contextual information available and whether it is distributed symmetrically to humans and models. Given their different strengths, human and statistical predictions can be profitably combined to improve prediction.  相似文献   
94.
The development of consultation skills lags far behind the development of counseling skills in most counselor education programs. Some of the reasons why consultation training is not emphasized are examined, and some remedies are suggested.  相似文献   
95.
Predictive testing for Huntington disease is presently offered in a select few medical genetics centers in the United States. This is in part due to the labor intensive counseling and psychological testing suggested by the research protocols. We discuss some specific suggestions for establishing programs for Huntington disease predictive testing within pre-existing medical genetics clinics to encourage more centers to offer presymptomatic testing. This will allow more at risk individuals the opportunity to consider predictive testing and cut down the expenses of traveling to the few predictive testing centers that currently exist. The counseling principals will remain similar to those discussed here, even following the identification of the Huntington disease mutation.  相似文献   
96.
97.
98.
In an attempt to account for morale and job satisfaction among 314 nurses, this study investigated the influence of work-related and interpersonal variables. Morale on the unit was directly related to supervisor support, co-worker relationships, and work recognition. Personal morale was accounted for by recognition, physical environment, the job itself, and pay. Job satisfaction was predicted by personal morale, work commitment, job clarity, work pressure, and innovation. Suggestions for improving nurse morale and job satisfaction are made.  相似文献   
99.
A major criticism of research on body image concerns the dubious assumptions of the unidimensionality of the construct and the equivalence of body-image measures. Our study of 125 male and female college students compared multiple measurement methods within each of two modalities of body image: (a) perceptual (body-size estimation) and (b) attitudinal (body-image affect and cognition). Clinically relevant indices of psychological adjustment and eating disturbance were included. Results clearly supported the distinction between attitudinal and perceptual modalities of body image and indicated more convergent and discriminant validity for the former than for the latter. Whereas one method of assessing size-estimation accuracy and most body-image attitudes produced relationships with maladjustment, only attitudinal body image and perceptual, self-ideal discrepancy measures were significantly linked to eating disturbance. Relationships were generally more consistent for women than for men. Implications are discussed in the context of extant and future research on body image with clinical and nonclinical populations.  相似文献   
100.
The essay examines the argument advanced by E.D. Hirsch, Jr., for instituting ‘cultural literacy’ as a fundamental priority of schools. A number of confusions and equivocations in Hirsch's reasoning are identified, and the propensity of his project to indoctrinate is exposed. Among the features of Hirsch's argument shown to be troubling are his shifting construal of ‘language’, his inconsistency about the requirements of cultural literacy, and his uncritical relation to traditional images of the American past and present. The upshot is to raise the question why Hirsch's project has elicited wide support and praise.  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