全文获取类型
收费全文 | 30000篇 |
免费 | 1058篇 |
国内免费 | 12篇 |
专业分类
31070篇 |
出版年
2018年 | 424篇 |
2017年 | 430篇 |
2016年 | 435篇 |
2015年 | 320篇 |
2014年 | 400篇 |
2013年 | 2168篇 |
2012年 | 739篇 |
2011年 | 773篇 |
2010年 | 502篇 |
2009年 | 477篇 |
2008年 | 738篇 |
2007年 | 690篇 |
2006年 | 645篇 |
2005年 | 571篇 |
2004年 | 575篇 |
2003年 | 552篇 |
2002年 | 582篇 |
2001年 | 835篇 |
2000年 | 817篇 |
1999年 | 630篇 |
1998年 | 308篇 |
1997年 | 321篇 |
1996年 | 326篇 |
1995年 | 299篇 |
1992年 | 591篇 |
1991年 | 562篇 |
1990年 | 547篇 |
1989年 | 506篇 |
1988年 | 516篇 |
1987年 | 495篇 |
1986年 | 535篇 |
1985年 | 525篇 |
1984年 | 465篇 |
1983年 | 404篇 |
1981年 | 315篇 |
1979年 | 485篇 |
1978年 | 389篇 |
1977年 | 340篇 |
1976年 | 338篇 |
1975年 | 396篇 |
1974年 | 506篇 |
1973年 | 551篇 |
1972年 | 406篇 |
1971年 | 426篇 |
1970年 | 409篇 |
1969年 | 428篇 |
1968年 | 533篇 |
1967年 | 473篇 |
1966年 | 498篇 |
1958年 | 307篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
911.
912.
913.
The focus of this paper is mechanisms that may be responsible for intellectual and developmental differences in the cognitive strategies of typical and atypical children, including those with mental retardation. The discussion of these mechanisms is based on behavioral experiments on external memory strategies and on a set of neural network models designed for these tasks. Following the review of the external memory research, the rationale for using neural network models, how they have been used in other research, and their specific application to intellectual and developmental differences in external memory, including the results of several simulations, are reviewed. This is followed by a discussion of the mechanisms of intellectual differences and developmental change included in the models and some challenges for this type of modeling. Neural network modeling is discussed as an asset to research on cognitive development. 相似文献
914.
Paul M. Kohn Colleen O'Brien Donna I. Pickering 《Personality and individual differences》1997,22(6):895-899
Adaptiveness constitutes coping consistently with Stressors so to reduce distress or, at worst, not aggravate it. Accordingly, it should moderate the adverse impact of hassles. Undergraduate volunteers (N = 200) responded to measures of hassles, adaptiveness, and the criteria of subjective distress, psychiatric symptomatology and minor physical ailments. In all three regression analyses, hassles made a substantial positive contribution and adaptiveness a small negative contribution to adverse outcome. The interaction between hassles and adaptiveness was non-significant in all three cases. Alternative interpretations were identified to guide further research. 相似文献
915.
916.
This focus section has presented Japanese research on a variety of socialization agents and contexts, including mothering, fathering, peers and multiple-caretakers in families and institutions. The reader is encouraged to compare the papers, discover the theoretical and applied implications of each study for child development in the reader's own culture, and to pursue collaborations with the outstanding young Japanese contributors. We conclude with brief comments on each of the five articles, discussing their limitations, most significant findings, theoretical importance, and implications for subsequent research. 相似文献
917.
918.
Research based mainly on non-national samples reports a greater affinity for animal rights among women than men, and proposes a greater relational role orientation among women that emphasizes caring for others to explain this difference. Using a recent national sample comprised of 11% African American and 89% white American respondents, we find that a relational role orientation fails to account for women’s greater support of animal rights. It does provide minor help in distinguishing animal rights advocates from nonadvocates, but only among women and only on one of two measures of animal rights support. We conclude by proposing women’s structural locations as well as the interplay between these locations and women’s role socialization as alternate explanations for gender differences in affinity for animal rights. 相似文献
919.
This article demonstrates that there is a role for behavior-analytic techniques in the area of farm animal welfare and provides examples of the kinds of work that can be done. Behavior-analytic procedures, specifically those used in the study of psychophysics, preference, and demand, can provide answers to three questions people concerned with the welfare of farm animals are likely to ask: What can the animals detect? What do they like and dislike? What will they work to attain or preserve? Such information certainly is necessary for making reasonable decisions about animal welfare, although it is not sufficient in and of itself. 相似文献
920.
Eugene W. Kelly 《Journal of counseling and development : JCD》1997,75(5):337-345
Relationship-centered counseling is a development in the client-centered tradition. It represents a humanistic integration that gives primacy to the humanizing and counseling relationship, conceives technical expertise as the instrumental extension of relationship, and affirms the necessity for an in-depth synthesis of both for effective counseling. Significant findings from contemporary process and outcome research are presented as supportively consistent with the relationship-centered integration, which has implications for research, practice, and training. 相似文献