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   165250篇
  免费   7559篇
  国内免费   155篇
  172964篇
  2021年   1480篇
  2020年   2761篇
  2019年   3430篇
  2018年   3410篇
  2017年   3824篇
  2016年   4539篇
  2015年   3902篇
  2014年   4788篇
  2013年   23390篇
  2012年   4299篇
  2011年   3323篇
  2010年   3763篇
  2009年   4693篇
  2008年   3578篇
  2007年   3134篇
  2006年   3809篇
  2005年   3791篇
  2004年   3310篇
  2003年   2952篇
  2002年   2727篇
  2001年   2873篇
  2000年   2775篇
  1999年   2882篇
  1998年   2802篇
  1997年   2624篇
  1996年   2558篇
  1995年   2396篇
  1994年   2364篇
  1993年   2308篇
  1992年   2371篇
  1991年   2255篇
  1990年   2092篇
  1989年   2031篇
  1988年   2009篇
  1987年   2027篇
  1986年   2018篇
  1985年   2232篇
  1984年   2387篇
  1983年   2207篇
  1982年   2335篇
  1981年   2304篇
  1980年   2157篇
  1979年   2054篇
  1978年   2110篇
  1977年   2085篇
  1976年   1867篇
  1975年   1885篇
  1974年   1926篇
  1973年   1798篇
  1972年   1412篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
Conclusion The community psychologist should be attuned to the phenomenon that deprived communities are not always attracted by goals that are understandable to the middle-class power structure. Persons in a constant battle against poverty settle at first for immediate visible gains. An increase in the number of children getting lunch at school is tangible; a revision of the curriculum to produce better competence in mathematics is not quite so tangible.I thank Prof. L. M. Noth, Professor and Head, Community Medicine, AIIMS, New Delhi, and Officer In Charge, Comprehensive Rural Health Service Project, Ballabgarh, for encouraging me to initiate and demonstrate community activities at Panehrakhurd, when I was associated with AIIMS. Thanks also to Mr. Parma Nand and Mr. Gurmeet Lal, President and General Secretary, respectively, of Dr. Ambdkar Mission Society Sofipind for their kind cooperation in trying out the developmental work.  相似文献   
992.
Assessed the number of sources of supportive and problematic social interactions in the total social network as well as the number who were the sources of consistently supportive or problematic interactions in a sample of 2nd year medical students. Number of problematic interaction sources was hypothesized to be more predictive of psychological and physical well-being than number of supportive interaction sources. Results showed that total supportive and total problematic interaction sources were equally predictive of life satisfaction. The presence of at least one individual who is a consistent source of problematic interactions was most predictive of lower life satisfaction. Results indicate the importance of studying both supportive and problematic social interactions. They also suggest that interactions with individuals that are consistently problematic may negatively impact upon well-being.  相似文献   
993.
994.
In this paper, we propose a new version of the phoneme monitoring task that is well-suited for the study of lexical processing. The generalized phoneme monitoring (GPM) task, in which subjects detect target phonemes appearing anywhere in the test words, was shown to be sensitive to associative context effects. In Experiment 1, using the standard phoneme monitoring procedure in which subjects detect only word-initial targets, no effect of associative context was obtained. In contrast, clear context effects were observed in Experiment 2, which used the GPM task. Subjects responded faster to word-initial and word-medial targets when the target-bearing words were preceded by an associatively related word than when preceded by an unrelated one. The differential effect of context in the two versions of the phoneme monitoring task was interpreted with reference to task demands and their role in directing selective attention. Experiment 3 showed that the size of the context effect was unaffected by the proportion of related words in the experiment, suggesting that the observed effects were not due to subject strategies.  相似文献   
995.
Evoked brain potentials were used to monitor moment-by-moment decisions during language comprehension. Subjects read sentences containing temporary syntactic ambiguities for which one of the possible interpretations was semantically implausible. The N400 component of the evoked potential, which is sensitive to implausibility, was used to discover when during a sentence subjects made a decision about the ambiguity. The results demonstrate that readers try to interpret a syntactic ambiguity early in a sentence rather than waiting for disambiguating information. This introduces a new way to use brain activity to study sentence comprehension processes.  相似文献   
996.
The expansion of mental health services during the 1960s from a single remote mental hospital to centers and clinics in mainstream communities fostered the development of community psychology in Hong Kong. Few psychologists were initially involved in the local community mental health movement, but its momentum resulted in increasing numbers of practitioner psychologists working in community-based service settings. Community psychology in Hong Kong today consists primarily of service delivery, but also includes applied research, community organization/consultation, and community education. Despite having many parallels with the American situation, key concepts underpinning the practice of community psychology in the Territory possess their own character as a reflection of nuances in the local scene. Prospects for the continued development of community psychology in Hong Kong appear favorable. Of special relevance is the field's potential contribution to a better understanding of the psychological phenomena associated with the Territory's sociopolitical transformation in 1997.  相似文献   
997.
The relation between awareness of body topology and auditory comprehension of body part names was studied in 22 aphasic subjects. Two nonverbal tasks—human figure drawing and placement of individual body parts in relation to a drawn face—were compared with two auditory tests of body part comprehension. The two nonverbal and the two verbal tasks were closely correlated with each other, but there was no relation involving either of the verbal tests with either of the nonverbal tests. Selection errors in the auditory comprehension tasks were predominantly semantically based and equally distributed between functionally analogous parts and parts related by location on the body.Dr. Benedet's effort in this study was supported by a grant from the Hispano-North American Joint Committee for Cultural and Educational Cooperation.  相似文献   
998.
999.
List of publications: Husserliana (also translations) and Phaenomenologica  相似文献   
1000.
A Bayesian approach to the testing of competing covariance structures is developed. The method provides approximate posterior probablities for each model under consideration without prior specification of individual parameter distributions. The method is based on ayesian updating using cross-validated pseudo-likelihoods. Given that the observed variables are the samefor all competing models, the approximate posterior probabilities may be obtained easily from the chi square values and other known constants, using only a hand calculator. The approach is illustrated using and example which illustrates how the prior probabilities can alter the results concerning which model specification is preferred.  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