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   26347篇
  免费   387篇
  国内免费   2篇
  26736篇
  2021年   57篇
  2020年   112篇
  2019年   132篇
  2018年   3606篇
  2017年   2989篇
  2016年   2424篇
  2015年   344篇
  2014年   256篇
  2013年   795篇
  2012年   842篇
  2011年   2648篇
  2010年   2666篇
  2009年   1648篇
  2008年   1918篇
  2007年   2390篇
  2006年   255篇
  2005年   438篇
  2004年   387篇
  2003年   308篇
  2002年   271篇
  2001年   130篇
  2000年   162篇
  1999年   119篇
  1998年   111篇
  1997年   101篇
  1996年   101篇
  1995年   87篇
  1994年   78篇
  1993年   62篇
  1992年   83篇
  1991年   61篇
  1990年   59篇
  1989年   50篇
  1988年   49篇
  1987年   42篇
  1986年   46篇
  1985年   62篇
  1984年   61篇
  1983年   52篇
  1982年   72篇
  1981年   71篇
  1980年   52篇
  1979年   52篇
  1978年   43篇
  1977年   66篇
  1976年   41篇
  1975年   46篇
  1974年   39篇
  1973年   45篇
  1972年   35篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
971.
The present study examined the validity of a self-report parenting instrument for use with Mexican adolescents. The 13-item measure was adapted from the Mexican Parenting Questionnaire. The sample included 1123 adolescents (M age?=?15.07, SD?=?1.52) from Puebla, Mexico. Adolescents self-reported on six subscales of parenting (i.e., affection, verbal guidance, monitoring, communication, physical punishment and verbal punishment), as well as on measures of school grades, life satisfaction, familism, depressive and anxiety symptoms. Using confirmatory factor analyses, the original constructs were found to be a good fit with the data. Most subscales consisted of moderate levels of internal consistency and predicted several measures of adolescent adjustment in expected directions. Girls were more likely to report higher levels of monitoring, affection, and communication than boys. Adolescents who were younger and who reported lower school grades were more likely to report greater levels of physical punishment. Familism was positively associated with five of the six parenting dimensions (i.e., affection, verbal guidance, monitoring, physical punishment, and communication). Findings advance understanding on families and adolescent well-being in Mexico and may inform culturally competent services for clinicians who work with Mexican families.  相似文献   
972.
Physical cognition has generally been assessed in tool-using species that possess a relatively large brain size, such as corvids and apes. Parrots, like corvids and apes, also have large relative brain sizes, yet although parrots rarely use tools in the wild, growing evidence suggests comparable performances on physical cognition tasks. It is, however, unclear whether success on such tasks is facilitated by previous experience and training procedures. We therefore investigated physical comprehension of object relationships in two non-tool-using species of captive neotropical parrots on a new means-end paradigm, the Trap-Gaps task, using unfamiliar materials and modified training procedures that precluded procedural cues. Red-shouldered macaws (Diopsittaca nobilis) and black-headed caiques (Pionites melanocephala) were presented with an initial task that required them to discriminate between pulling food trays through gaps while attending to the respective width of the gaps and size of the trays. Subjects were then presented with a novel, but functionally equivalent, transfer task. Six of eight birds solved the initial task through trial-and-error learning. Four of these six birds solved the transfer task, with one caique demonstrating spontaneous comprehension. These findings suggest that non-tool-using parrots may possess capacities for sophisticated physical cognition by generalising previously learned rules across novel problems.  相似文献   
973.
Eldridge-Smith  Peter 《Philosophia》2022,50(5):2457-2476
Philosophia - The concept of hypodox is dual to the concept of paradox. Whereas a paradox is incompatibly overdetermined, a hypodox is underdetermined. Indeed, many particular paradoxes have dual...  相似文献   
974.
975.
This paper has two major parts. The first recounts the beginning and growth of the friendship between Siegfried Streufert and Peter Suedfeld, who in the mid-1960s were graduate students in Harold M. Schroder's social psychology laboratory at Princeton University. Each continued to develop a different line of theory and research on cognitive aspects of personality and social psychology while maintaining their contacts and friendship. The second part describes the background, characteristics, and applications of the integrative complexity (IC) work of Peter Suedfeld and his collaborators and students.  相似文献   
976.
This article proposes a link between autistic people being misperceived by the neurotypical majority and their being at risk of poor mental health and well-being. We present a transactional account of development in which the misperceptions (and consequent behaviour) of the neurotypical majority influences the perceptions and behaviour of autistic people such that they become increasingly separate and indeed isolated from mainstream society. This jeopardizes their mental health and prevents autistic people from developing to full potential. The situation is not only problematical for the development of autistic people but is also to the detriment of wider society, in so far as autistic people are effectively prevented from contributing fully. This account assumes that some (not necessarily all) autistic people yearn to be included, to be productive and to be useful. It thus directly opposes accounts that view autism as an extreme case of diminished social motivation.  相似文献   
977.
引言在西部沙漠中,神话叙事将各地的自然特征,比如山脉和岬角,联系在一起;通常这些梦境节点(Dreaming nodes)也是发现岩画的主要区域.这里的岩画遗址除了一系列其他世俗的和未确定的主题外,还经常包含被描述为代表祖先的图案(参见伯恩特,1964;帕尔默,1975,1977).  相似文献   
978.
979.
Applied Research in Quality of Life - This research focuses upon non-financial work motivation against the background of the debate about the introduction of a basic income. We focus on work...  相似文献   
980.
It has been argued that the psychological refractory period (PRP) effect is eliminated with two ideomotor compatible tasks when instructions stress fast and simultaneous responding. Three experiments were conducted to test this hypothesis. In all experiments, Task 1 required spatially compatible manual responses (left or right) to the direction of an arrow, and Task 2 required saying the name of the auditory letter A or B. In Experiments 1 and 3, the manual responses were keypresses made with the left and right hands, whereas in Experiment 2 they were left-right toggle-switch movements made with the dominant hand. Instructions that stressed response speed reduced reaction time and increased error rate compared to standard instructions to respond fast and accurately, but did not eliminate the PRP effect on Task 2 reaction time. These results imply that, even when response speed is emphasized, ideomotor compatible tasks do not bypass response selection.  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