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   76857篇
  免费   1369篇
  国内免费   5篇
  78231篇
  2020年   873篇
  2019年   992篇
  2018年   1396篇
  2017年   1475篇
  2016年   1538篇
  2015年   1071篇
  2014年   1323篇
  2013年   6279篇
  2012年   2436篇
  2011年   2505篇
  2010年   1521篇
  2009年   1521篇
  2008年   2151篇
  2007年   2087篇
  2006年   1925篇
  2005年   1631篇
  2004年   1669篇
  2003年   1570篇
  2002年   1568篇
  2001年   2448篇
  2000年   2320篇
  1999年   1771篇
  1998年   847篇
  1997年   720篇
  1996年   773篇
  1994年   713篇
  1993年   700篇
  1992年   1443篇
  1991年   1326篇
  1990年   1343篇
  1989年   1269篇
  1988年   1239篇
  1987年   1184篇
  1986年   1179篇
  1985年   1259篇
  1984年   1008篇
  1983年   884篇
  1979年   1079篇
  1978年   821篇
  1977年   700篇
  1975年   916篇
  1974年   1006篇
  1973年   1021篇
  1972年   868篇
  1971年   822篇
  1970年   720篇
  1969年   761篇
  1968年   917篇
  1967年   814篇
  1966年   785篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
Although Michael Polanyi's model of science and his construal of the nature of the real are usually thought to be congenial to religion and although Polanyi himself says that "the stage on which we thus resume our full intellectual powers is borrowed from the Christian scheme of Fall and Redemption" (Polanyi 1958, 324), theologians have given little attention to the model of God he presents. The metaphysical and theological vision unfolded in part 4 of Personal Knowledge is a thoughtful alternative to materialist versions of neo-Darwinism and provides a platform for revisiting four long-standing controversies at the interface of science and religion: whether life and mind can be completely specified in terms of physical analysis, whether nature can be adequately understood without appeal to final causes, whether natural selection adequately explains life's diverse forms, and whether knowledge can be fully objectified. Through an exploration of Polanyi's contribution to these discussions, we undertake to show not only that his treatment of God as a cosmic field is strikingly original but also that in reinstating activity as a metaphysical category, he reconstructs our understanding of our creaturely hope and calling.  相似文献   
942.
This study tested the main effects of (1) locus of control and social support on job stress; of (2) stress, locus of control, and social support on strain; and of (3) of stress, locus of control, social support, and strain on propensity to leave a job. The study also tested the moderating effects of locus of control and social support on the stress-strain relationship. These effects were tested with questionnaire data collected from a random sample of 288 managers. Results from hierarchical regression analyses found general support for the effects related to locus of control but not social support. A major implication for the findings is that managers who possess high internal locus of control personality should be particularly selected for positions which involve high stress.  相似文献   
943.
Two experiments examined the effects of drug testing policies on undergraduates' behavioral intentions and attitudes toward the company. Study 1 (n=267) manipulated type of drug testing and consequences of detected use. Study 2 (n=267) manipulated the presence of applicant and employee drug testing. Subjects in both studies showed stronger intentions to apply to a company with random employee testing than one with no employee testing. Study 2 also found that an interaction between company policy and subjects' attitudes toward drug testing affected attitudes toward the company. Both studies suggest that employee drug testing may now foster recruitment.Study 1 was conducted while the author was at Ohio University and was presented in an earlier version at the Eastern Psychological Association's 64th Annual Meeting, Arlington, VA, April 16–April 18, 1993.I thank Candie Burbick and Jamie Winters for their work as student assistants. I also thank Jane Kestner, Kim Mastrangelo, James Rogers, and the JBP reviewers for their suggestions.  相似文献   
944.
Abstract— Strack and Förster (1995) showed that, unlike remember responses, know responses in recognition memory were influenced by manipulating response bias. We describe and experiment that replicated theirs but additionally allowed subjects to report guesses. Only guess responses were influenced by this manipulation. Response bias had no effects on either know or remember responses. This outcome suggests that manipulating response bias influence know responses only when guessing is encouraged but not reported as such. More-over, though know responses reflected memory for the study events, guess responses did not.  相似文献   
945.
CLUSTERS PRECEDE SHAPES IN PERCEPTUAL ORGANIZATION   总被引:2,自引:0,他引:2  
Abstract —Does perceptual grouping require attention? Recent controversy on this question may be caused by a conflation of two aspects of grouping: element clustering (determining which elements belong together) and shape formation (determining cluster boundaries). In Experiment 1, observers enumerated diamonds that were drawn with either lines or dots. These two types of stimuli were subitized (enumerated rapidly and accurately in the range from one to three items) equally well, suggesting that clustering dots into countable entities did not detnand attention. In contrast, when target diamonds were enumerated among distractor squares in Experiment 2. only line-drawn items could be subitized. We propose that clustering and shape formation not only involve different perceptual processes, but play different functional roles in vision.  相似文献   
946.
Abstract -Object tokens are episodic visual representations that mediate the ability to track visual events as they move about and change over time. Multiple tokens also allow the viewer to individuate multiple instances of a single type of object. In the present study, we established a functional link for object tokens in two seemingly disparate visual phenomena: apparent motion and repetition blindness [RB]. In RB, repeated items are more difficult to perceive than unre-peated items. Using displays in which two sets of alphanumeric characters streamed in opposite directions across a computer screen in apparent motion, we found increased RB for targets appearing within a single apparent motion stream, relative to targets in different apparent motion streams. The results are inconsistent with refractory period or memory retrieval accounts of RB and support the role of object tokens in both apparent motion and RB.  相似文献   
947.
TIME COURSE OF ACTIVATING BRAIN AREAS IN GENERATING VERBAL ASSOCIATIONS   总被引:2,自引:0,他引:2  
Abstract— Generating a use far a visual word in comparison with reading the word aloud activates frontal attention areas first (170 MS), a left lateral frontal area next (250 ms), and then a left temporoparietal (Wernicke's) area (650 ms). A brief period of practice reduces these activations. If subjects are asked to respond to a word from the same practiced list by giving a novel use, the original activations reappear and are joined by activity similar in location and time to Wernicke's activation but in the right hemisphere. These findings demonstrate the time course of activations of neuroanatomical areas in word processing and indicate a role for the right hemisphere when semantic processing is more difficult, such as in generating a less frequent association in the presence of a highly practiced one.  相似文献   
948.
The development of attitudes and activities of newcomers in the 18 months following the first period of socialization was investigated. At two points in time, persons' preferences for seven work climates were compared with perceived climate. Changes in person-climate fit were assessed, using a squared difference index, after alternative fit-indices were tested with hierarchical regression analysis. Person-climate fit and work attitudes at T1 (eight to ten months after entry) were examined by comparing three groups of respondents who did not change jobs, changed jobs within the organization or changed organizations. Results showed no alpha, beta or gamma changes for the total group of 108 respondents. Alpha changes were only found for respondents who changed jobs. They showed higher ratings for job satisfaction at T2. Finally, work attitudes at T1 were related to turnover. Organizational changers showed higher turnover intentions and higher discrepancies between preferred and perceived risk orientation and work pressure at T1.  相似文献   
949.
LONGITUDINAL STUDY OF PROCRASTINATION, PERFORMANCE, STRESS, AND HEALTH:   总被引:7,自引:0,他引:7  
Abstract— Procrastination is variously described as harmful, innocuous, or even benefical. Two longitudinal studies examined procrastination among students. Procrastinators reported lower stress and less illness than nonprocrastinators early in the semester, but they reported higher stress and more illness late in the term, and overall they were sicker. Procrastination thus appears to be a self-defeating behavior pattern marked by short-term benefits and long-term costs.  相似文献   
950.
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