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   7699篇
  免费   257篇
  国内免费   5篇
  2020年   81篇
  2019年   92篇
  2018年   137篇
  2017年   140篇
  2016年   164篇
  2015年   125篇
  2014年   126篇
  2013年   770篇
  2012年   267篇
  2011年   276篇
  2010年   181篇
  2009年   216篇
  2008年   281篇
  2007年   313篇
  2006年   281篇
  2005年   257篇
  2004年   244篇
  2003年   299篇
  2002年   267篇
  2001年   108篇
  2000年   107篇
  1999年   131篇
  1998年   102篇
  1997年   115篇
  1996年   110篇
  1995年   125篇
  1994年   96篇
  1993年   117篇
  1992年   101篇
  1991年   91篇
  1990年   77篇
  1989年   79篇
  1988年   84篇
  1987年   97篇
  1986年   80篇
  1985年   90篇
  1984年   114篇
  1983年   119篇
  1982年   107篇
  1981年   102篇
  1980年   109篇
  1979年   107篇
  1978年   115篇
  1977年   107篇
  1976年   119篇
  1975年   92篇
  1974年   94篇
  1973年   88篇
  1972年   58篇
  1971年   45篇
排序方式: 共有7961条查询结果,搜索用时 15 毫秒
941.
The computer's effect on our understanding of causation has been enormous. By the mid-1980s, philosophical and social-scientific work on the topic had left us with (1) no reasonable reductive account of causation and (2) a class of statistical causal models tied to linear regression. At this time, computer scientists were attacking the problem of equipping robots with models of the external that included probabilistic portrayals of uncertainty. To solve the problem of efficiently storing such knowledge, they introduced Bayes Networks and directed graphs. By attaching a causal interpretation to Bayes Networks, the philosophy of causation changed dramatically. We are now able to be extremely general about how causal structure connects to data, and systematic about when causal structures are empirically indistinguishable. In this essay I try to motivate and describe this synthesis.  相似文献   
942.
Attitudinal ambivalence is generally construed as existing when the same attitude object is evaluated simultaneously as both positive and negative. The present research examined the moderating role of attitudinal ambivalence (as assessed by split‐semantic differential measure) on the relationship between bipolar semantic differential measures of attitude and subsequent behaviour using moderated regression analysis. In Study 1, higher levels of attitudinal ambivalence were shown to result in weaker attitude–behaviour relationships for eating a low‐fat diet (N = 140) and eating 5 portions of fruit and vegetables per day (N = 142). Study 2 (N = 361) replicated this effect when also including a measure of past behaviour for eating a low‐fat diet. Implications for understanding the relationship between attitudes and behaviour are discussed. Copyright © 2002 John Wiley & Sons, Ltd.  相似文献   
943.
Richard Feist 《Synthese》2002,132(3):273-301
This article locates Weyl's philosophy of mathematics and its relationship to his philosophy of science within the epistemological and ontological framework of Husserl's phenomenology as expressed in the Logical Investigations and Ideas. This interpretation permits a unified reading of Weyl's scattered philosophical comments in The Continuum and Space-Time-Matter. But the article also indicates that Weyl employed Poincaré's predicativist concerns to modify Husserl's semantics and trim Husserl's ontology. Using Poincaré's razor to shave Husserl's beard leads to limitations on the least upper bound theorem in the foundations of analysis and Dirichlet's principle in the foundations of physics. Finally, the article opens the possibility of reading Weyl as a systematic thinker, that he follows Husserl's so-called transcendental turn in the Ideas. This permits an even more unified reading of Weyl's scattered philosophical comments.  相似文献   
944.
Les échelles d'appréciation constituent une forme d'évaluation des performances qui a rencontré un grand succès ces dernières décennies. En particulier, de gros efforts ont été consacrés au développement d'échelles relativement insensibles aux erreurs et biais cognitifs. Mais on s'est beaucoup moins intéressé au fait de savoir si et comment le type d'évaluation affecte les attitudes professionnelles et les réactions des personnes évaluées. Des données en provenance de quatre études différentes avec des échantillons tirés dans deux pays (lsraël et le Canada) apportent des éléments en faveur de l'idée selon laquelle une évaluation de la performance basée sur le BOS peut être supérieure aux autres méthodes en ce sens qu'elle entraîne des conséquences plus positives au niveau des attitudes.
One aspect of performance appraisal that has received considerable attention over past decades is the rating format. In particular, much effort has been devoted to developing rating scales that are relatively impervious to cognitive rating errors and biases. However, much less attention has been accorded the issues of whether and how an appraisal's format affects work attitudes and reactions of ratees. Data collected in four separate studies and with samples in two nations (Israel, Canada) lend credence to the proposition that a BOS-based performance appraisal and review may be superior to other appraisal methods in terms of yielding more favorable attitudinal effects.  相似文献   
945.
Internationally known counselor educator and author Garry Landreth has a passion for filial therapy. In this interview article, Landreth discusses the basic principles and procedures of filial therapy, the 10‐week Filial Therapy Training Model he has developed, and the research that he and his colleagues and students are doing on filial therapy.  相似文献   
946.
This is a study of one person's memory for events that occurred twenty years earlier. Memory was observed to follow an asymptotic rate of decay. No experience of recovered memories occurred. Factors found to be related to recall were the rarity of the event, its vividness, and the emotional intensity experienced at the time. Factors unrelated or only weakly related were perceived importance of the event, its association with knowledge, and intensities of physical sensations. Pleasant events were recalled a little better than unpleasant. Though less strongly associated with memory than is location, moderate marking of events with date and time was found. The results suggest that personal memory declines as the images of events one by one submerge into the mass of generalized experiences. The more vivid, rare, and emotional experiences are more likely to remain discriminable, and may be sustained by rehearsal. Copyright © 2002 John Wiley & Sons, Ltd.  相似文献   
947.
Neuropsychological data are reviewed from two sets of dizygotic twins presenting with selective mutism characterized by situation specific anxiety, extreme passive behavior, lack of responsivity, lack of peer interaction, and a chronic course of selective mutism. Both sets of twins had a history of prematurity and delayed speech development. One set of twins presented with normal intelligence and normal receptive language skills but with expressive language and oral motor sequencing difficulties. The second set of twins presented with Verbal IQ deficits and significant receptive and expressive language deficits. A summary of current conceptualizations regarding etiology and treatment of selective mutism is provided.  相似文献   
948.
This study examines the effects that extracurricular activities have on the attributions a résumé reader makes about an applicant. Three characteristics of extracurricular activities (number of activities, holding positions of leadership, and relevance of the activities) were manipulated across 24 résumés of fictitious college graduates. Some 219 raters read the résumés and made judgments about the level of the applicant’s quality. The results showed a main effect for the number of activities, a main effect for holding leadership positions, and a main effect for relevance of the activity. Furthermore, a three–way interaction revealed the differential effects that the relevance of the activities had on the attributions at different levels of leadership and number of activities. A mix of career–related and social activities garnered higher ratings for those who held leadership positions in five activities. However, for those who were leaders in only two activities or were not leaders in five, having only career–related activities earned them higher ratings. For applicants who were not leaders in two activities, relevance of the activities played no role.  相似文献   
949.
950.
This article explores the structure of world order fromthe perspective of the Treaty of Westphalia, which is treated asthe benchmark for the emergence of the modern system of sovereignstates. Emphasis is placed on Westphalia as historical event, ideaand ideal, and process of evolution, and also on developments thatsupersede this framing of world politics, especially, globalizationand the megaterrorist challenge of September 11, 2001. At issue is whether the state system is resilient enough to adapt to new globalconditions or is in the process of being supplanted, and whether thesequel to Westphalia is moving toward humane global governance orsome dysutopic variant, or both at once.  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