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   20935篇
  免费   43篇
  20978篇
  2024年   2篇
  2023年   5篇
  2022年   11篇
  2021年   17篇
  2020年   16篇
  2019年   19篇
  2018年   3497篇
  2017年   2829篇
  2016年   2264篇
  2015年   207篇
  2014年   91篇
  2013年   126篇
  2012年   598篇
  2011年   2425篇
  2010年   2539篇
  2009年   1487篇
  2008年   1742篇
  2007年   2204篇
  2006年   68篇
  2005年   240篇
  2004年   179篇
  2003年   122篇
  2002年   76篇
  2001年   32篇
  2000年   60篇
  1999年   14篇
  1998年   23篇
  1997年   21篇
  1996年   8篇
  1995年   4篇
  1994年   6篇
  1993年   4篇
  1992年   2篇
  1991年   5篇
  1990年   9篇
  1988年   3篇
  1987年   2篇
  1982年   1篇
  1981年   1篇
  1980年   2篇
  1979年   2篇
  1977年   1篇
  1976年   2篇
  1975年   2篇
  1974年   1篇
  1973年   1篇
  1969年   1篇
  1968年   1篇
  1964年   1篇
  1962年   1篇
排序方式: 共有10000条查询结果,搜索用时 6 毫秒
31.
32.
33.
34.
35.
Under the post-metaphysical sky “old” humanistic-oriented education is possible solely at the cost of its transformation into its negative, into a power that is determined to diminish human potentials for self-exaltation. Nothing less than total metamorphosis is needed to rescue the core of humanistic genesis: the quest for edifying Life and resistance to the call for “home-returning” into the total harmony that is promised to us within nothingness.  相似文献   
36.
37.
38.
Various studies have found that reading books about positive interactions between ingroup and outgroup characters, known as media vicarious contact, can reduce prejudice. Focusing on the fantasy saga of The Hunger Games, we examined the effects of negative vicarious contact on collective action across two studies. Specifically, we tested whether reading about fantasy characters living in a postapocalyptic conflictual society with large social disparities between advantaged and disadvantaged groups leads advantaged group members to display greater willingness to engage in collective action on behalf of the disadvantaged group. Results from Study 1 (correlational survey in the United Kingdom and United States) and Study 2 (experimental intervention in Italy) revealed that reading The Hunger Games is indirectly associated with greater collective action intentions via increased anger toward injustice. In both studies social dominance orientation (SDO) acted as a moderator, but in opposite directions: mediation was significant for low-SDOs in Study 1, and for high-SDOs in Study 2. Results are discussed in relation to the importance of media vicarious contact via book reading for social change, and to the need to identify the contextual conditions allowing to anticipate the specific moderation pattern that is more likely to emerge.  相似文献   
39.
Current Psychology - Based on Farber’s burnout proposal, the first aim of this study was to examine the psychometric properties of the short version of the Burnout Clinical Subtype...  相似文献   
40.
Abreu  Filipa  Garber  Paul A.  Souto  Antonio  Presotto  Andrea  Schiel  Nicola 《Animal cognition》2021,24(3):629-643

To increase efficiency in the search for resources, many animals rely on their spatial abilities. Specifically, primates have been reported to use mostly topological and rarely Euclidean maps when navigating in large-scale space. Here, we aimed to investigate if the navigation of wild common marmosets inhabiting a semiarid environment is consistent with a topological representation and how environmental factors affect navigation. We collected 497 h of direct behavioral and GPS information on a group of marmosets using a 2-min instantaneous focal animal sampling technique. We found that our study group reused not only long-route segments (mean of 1007 m) but entire daily routes, a pattern that is not commonly seen in primates. The most frequently reused route segments were the ones closer to feeding sites, distant to resting sites, and in areas sparse in tree vegetation. We also identified a total of 56 clustered direction change points indicating that the group modified their direction of travel. These changes in direction were influenced by their close proximity to resting and feeding sites. Despite our small sample size, the obtained results are important and consistent with the contention that common marmosets navigate using a topological map that seems to benefit these animals in response to the exploitation of clustered exudate trees. Based on our findings, we hypothesize that the Caatinga landscape imposes physical restrictions in our group’s navigation such as gaps in vegetation, small trees and xerophytic plants. This study, based on preliminary evidence, raises the question of whether navigation patterns are an intrinsic characteristic of a species or are ecologically dependent and change according to the environment.

  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