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   985篇
  免费   37篇
  2023年   6篇
  2020年   14篇
  2019年   21篇
  2018年   26篇
  2017年   38篇
  2016年   28篇
  2015年   21篇
  2014年   25篇
  2013年   109篇
  2012年   33篇
  2011年   35篇
  2010年   33篇
  2009年   33篇
  2008年   35篇
  2007年   37篇
  2006年   30篇
  2005年   28篇
  2004年   29篇
  2003年   31篇
  2002年   41篇
  2001年   16篇
  2000年   33篇
  1999年   32篇
  1998年   17篇
  1997年   11篇
  1996年   12篇
  1995年   15篇
  1994年   10篇
  1993年   8篇
  1991年   7篇
  1990年   6篇
  1989年   5篇
  1988年   11篇
  1987年   6篇
  1986年   6篇
  1985年   7篇
  1984年   5篇
  1983年   11篇
  1982年   9篇
  1980年   9篇
  1979年   7篇
  1978年   13篇
  1977年   9篇
  1975年   9篇
  1974年   12篇
  1973年   5篇
  1972年   5篇
  1968年   8篇
  1967年   9篇
  1962年   4篇
排序方式: 共有1022条查询结果,搜索用时 15 毫秒
51.
Intellectual property has historically been a self-contained policy at the international level. With the introduction of the TRIPs Agreement in 1994 and developments since the conclusion of the TRIPs Agreement, the relationship between intellectual property policy and other areas of public policy has become much more complex and interactive. This shift reflects the centrality of intellectual property in the knowledge economy, the rapid development of enabling technologies, notably the Internet and biotechnology, and the advent of the networked society. The consequences of this shift are manifold and herald the increased sophistication and complexity that may be expected of intellectual property regimes in the knowledge economy. An earlier version of this paper was presented at an international conference, “The Ethics of Intellectual Property Rights and Patents,” held in Warsaw, Poland on 23–24 April, 2004.  相似文献   
52.
The author examines the history of theological method based on the term locus theologicus, the refinement of this method by Liberation Theologians and U. S. Hispanic/Latino/a Theologians, and describes one experience of using contextual theology to develop curriculum for Second-Year Clinical Pastoral Education (CPE) Residents.  相似文献   
53.
54.
As people with disabilities challenge psychology to acknowledge the sociopolitical foundations of their marginalization, they urge psychologists to help improve disability policy within and beyond the borders of the discipline. Understanding disability through a social paradigm offers opportunities to reframe the way psychologists define problems related to disability, to develop more collaborative relationships between psychologists and people with disabilities, and to adopt new professional responsibilities with respect to the disability community. The authors address the impact of the social paradigm on policies within psychology that guide consulting, advocacy, and training. The impact of national policy decisions, such as those associated with reimbursement, on practice and training is also discussed. Highlighted throughout are points of controversy prompted by new disability frameworks that remain open to illumination from the field.  相似文献   
55.
The present research examines episodes of favor exchange among peer employees. We posit that favor receivers' and favor givers' commitment to their exchange relationships with one another will be accounted for by different factors. As predicted, in 2 different organizational contexts, receivers' commitment to their relationships with givers was found to be more related to their judgments of the givers' interactional justice when performing the favor, whereas givers' commitment to their relationships with receivers was shown to be more associated with their judgments of the favorability of the outcomes associated with the favor that they performed. The implications of these findings for how givers and receivers can better manage favor exchange, and hence their relationships with each other, are discussed.  相似文献   
56.
Two experiments with highly fluent Spanish-English bilinguals examined repetition priming of picture identification and word retrieval in picture naming. In Experiment 1, between-language priming of picture naming was symmetric, but within-language priming was stronger in the nondominant language. In Experiment 2, priming between picture naming and translation was symmetric within both the dominant language and the nondominant language, but priming was stronger in the nondominant language. A mathematical model required only 3 process parameters to explain the pattern of priming across 8 conditions. These results indicate that shared processes are the basis of priming, that difficulty influences priming only at the process level, and that translation in both directions is concept mediated in fluent bilinguals.  相似文献   
57.
Recent research has indicated that the pro-inflammatory cytokines, particularly interleukin-1beta (IL-1beta), can affect learning and memory. We injected male Sprague-Dawley rats with IL-1beta (1.0, 3.0, or 6.0 microg/kg, i.p.) or saline vehicle, 24h before a single 4-h session of leverpress escape/avoidance conditioning. No effect of IL-1beta at any dose was observed in the number of escape responses across the 4-h session. However, subjects treated with the two lower doses (1.0 and 3.0 microg/kg) of IL-1beta performed more avoidance responses during the final hour of the 4-h session than the other two groups. Subjects treated with the highest dose of IL-1beta (6.0 microg/kg) did not differ from controls. Results are discussed in terms of the possible mechanisms behind the IL-1beta-induced enhancement of learning, as well as the observed dose-response relationship.  相似文献   
58.
Two experiments were conducted on the nature of expert perception in the sport of squash. In the first experiment, ten expert and fifteen novice players attempted to predict the direction and force of squash strokes from either a film display (occluded at variable time periods before and after the opposing player had struck the ball) or a matched point-light display (containing only the basic kinematic features of the opponent's movement pattern). Experts out-performed the novices under both display conditions, and the same basic time windows that characterised expert and novice pick-up of information in the film task also persisted in the point-light task. This suggests that the experts' perceptual advantage is directly related to their superior pick-up of essential kinematic information. In the second experiment, the vision of six expert and six less skilled players was occluded by remotely triggered liquid-crystal spectacles at quasi-random intervals during simulated match play. Players were required to complete their current stroke even when the display was occluded and their prediction performance was assessed with respect to whether they moved to the correct half of the court to match the direction and depth of the opponent's stroke. Consistent with experiment 1, experts were found to be superior in their advance pick-up of both directional and depth information when the display was occluded during the opponent's hitting action. However, experts also remained better than chance, and clearly superior to less skilled players, in their prediction performance under conditions where occlusion occurred before any significant pre-contact preparatory movement by the opposing player was visible. This additional source of expert superiority is attributable to their superior attunement to the information contained in the situational probabilities and sequential dependences within their opponent's pattern of play.  相似文献   
59.
60.
The mechanisms used to convey parents' and teachers' educational expectations for the academic achievement of low-income African American children were explored using data from the Chicago Longitudinal Study. A total of 712 children were studied. A model of mediated effects was used to test the processes of influence from parents' and teachers' expectations to sixth-grade outcomes. Children's perceptions of expectations were hypothesized to mediate the effect of expectations to school outcomes. Study findings revealed that these perceptions only partially mediated the effects of expectations to sixth-grade reading and math outcomes, yet added unique independent variance to these outcomes. Prior achievement emerged as a powerful mediator of the effects of early educational intervention and sociodemographic variables to sixth-grade outcomes. These findings suggest a need to further investigate the processes of communicating parent and teacher expectations.  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