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   58090篇
  免费   1010篇
  国内免费   3篇
  59103篇
  2020年   695篇
  2019年   817篇
  2018年   1140篇
  2017年   1162篇
  2016年   1220篇
  2015年   877篇
  2014年   1055篇
  2013年   4902篇
  2012年   1952篇
  2011年   1960篇
  2010年   1187篇
  2009年   1206篇
  2008年   1694篇
  2007年   1652篇
  2006年   1504篇
  2005年   1262篇
  2004年   1300篇
  2003年   1237篇
  2002年   1178篇
  2001年   1936篇
  2000年   1814篇
  1999年   1350篇
  1998年   635篇
  1997年   542篇
  1996年   616篇
  1995年   560篇
  1994年   545篇
  1993年   534篇
  1992年   1108篇
  1991年   1028篇
  1990年   999篇
  1989年   966篇
  1988年   936篇
  1987年   871篇
  1986年   864篇
  1985年   911篇
  1984年   735篇
  1983年   634篇
  1982年   485篇
  1979年   766篇
  1978年   573篇
  1975年   609篇
  1974年   685篇
  1973年   705篇
  1972年   607篇
  1971年   568篇
  1970年   485篇
  1968年   612篇
  1967年   532篇
  1966年   509篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
This paper presents a model for a therapeutic approach to the cultural systems of families. Using anthropologically derived concepts of material and ideational planes of culture, magic, and ritualistic intervention, the inducement of culture change in frozen familial systems is framed in dialectical terms. Four brief case studies are presented describing the systems engaged, the material-ideational rituals employed, and the cultural transformations induced. The paper concludes with a brief discussion of some of the theoretical and practical implications of this cultural approach to the family in therapy.  相似文献   
972.
In the past several decades, changes in industrial societies have presented a host of issues, worldwide in scope, around which individual attitudes may form: technological growth, population expansion, environmental quality, global resources, differing societal goals, etc. This study (N= 325) was conducted to identify and assess the major attitude/belief constellations surrounding these issues and to examine their psychological basis and implications for risk perception and societal decision-making procedures. Results supported the hypotheses that assessed contemporary worldviews are related in predictable ways to (a) the pexceived risk associated with selected technologies, (b) preferences for the manner in which societal decisions should be made, and (c) a coherent set of psychological variables. Discussion focuses on policy implications of differing contemporary worldviews and on future directions and applications of this line of research.  相似文献   
973.
974.
A course in computer literacy was taken by 16 female elementary education majors specializing in mathematics. Results indicated that the students were dissimilar to the typical female college sample and to predicted occupational groups.  相似文献   
975.
976.
If ≥r and ≥d are two quaternary relations on an arbitrary set A, a ratio/difference representation for ≥r and ≥d is defined to be a function f that represents ≥r as an ordering of numerical ratios and ≥d as an ordering of numerical differences. Krantz, Luce, Suppes and Tversky (1971, Foundations of Measurement. New York, Academic Press) proposed an axiomatization of the ratio/difference representation, but their axiomatization contains an error. After describing a counterexample to their axiomatization, Theorem 1 of the present article shows that it actually implies a weaker result: if ≥r and ≥d are two quaternary retations satisfying the axiomatization proposed by Krantz et al. (1971), and if ≥r′ and ≥d′ are the relations that are inverse to ≥r and ≥d, respectively, then either there exists a ratio/difference representation for ≥r and ≥d, or there exists a ratio/difference representation for ≥r′ and ≥d′, but not both. Theorem 2 identifies a new condition which, when added to the axioms of Krantz et al. (1971), yields the existence of a ratio/difference representation for relations ≥r and ≥d.  相似文献   
977.
Using edited excerpts from actual negative and positive book reviews, this research examined the hypothesis that negative evaluators of intellectual products will be perceived as more intelligent than positive evaluators. The results strongly supported the hypothesis. Negative reviewers were perceived as more intelligent, competent, and expert than positive reviewers, even when the content of the positive review was independently judged as being of higher quality and greater forcefulness. At the same time, in accord with previous research, negative reviewers were perceived as significantly less likable than positive reviewers. The results on intelligence ratings are seen as bolstering the self-presentational explanation of the tendency shown by intellectually insecure individuals to be negatively critical. The present methodology is contrasted to that of previous research which obtained apparently contradictory results.  相似文献   
978.
This study investigated the effects of varying levels of social support as well as position of advantage or disadvantage on subjects' response to injustice. Conditions of advantage and disadvantage were established by randomly assigning one member of each experimental dyad to a method of working which prevented him/her from earning points for prizes. Three levels of social support (“none,” “peer,” “authoritative”) were created. Advantaged and disadvantaged subjects receiving authoritative support for the possibility of change and disadvantaged subjects receiving peer support in the form of divided opinion statements rated the system as less fair than either group in the absence of support or the advantaged receiving only peer support. Disadvantaged subjects evidenced a tendency to assume personal responsibility for their lower outcomes. Social support reduced this tendency but did not eliminate it.  相似文献   
979.
A total of 985 third through sixth grade children participated in the development of a 48-item Locus of Control Scale for Children's Perceptions of Social Interactions (LOC-CPSI). Scores are based on the number of positive, negative, and total social reinforcers a child attributes to his or her own behavior (internal control). A social desirability subscale is included. Reliability coefficients were comparable to or greater than those of existing locus of control measures. Convergent validity was demonstrated by low, significant correlations with other locus of control measures. Internal scores correlated significantly with sociometric measures of popularity and predicted peer status better than other locus of control measures. Theoretical implications and potential clinical application are discussed.  相似文献   
980.
The following measures were obtained from 42 student volunteers: the General and the Disinhibition subscales of the Sensation Seeking Scale (Form IV), the Reducer-Augmenter Scale, and the Absolute Auditory Threshold. General sensation seeking correlated significantly with the Reducer-Augmenter Scale, r(40) = .59, p less than .001, and the Absolute Auditory Threshold, r(40) = .45, p less than .005. Both results proved general across sex. These findings, that high-sensation seekers tend to be reducers and to lack sensitivity to weak stimulation, were interpreted as supporting strength-of-the-nervous-system theory more than the formulation of Zuckerman and his associates.  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