全文获取类型
收费全文 | 4597篇 |
免费 | 530篇 |
国内免费 | 238篇 |
出版年
2024年 | 25篇 |
2023年 | 115篇 |
2022年 | 88篇 |
2021年 | 160篇 |
2020年 | 232篇 |
2019年 | 262篇 |
2018年 | 205篇 |
2017年 | 237篇 |
2016年 | 266篇 |
2015年 | 186篇 |
2014年 | 199篇 |
2013年 | 605篇 |
2012年 | 131篇 |
2011年 | 186篇 |
2010年 | 123篇 |
2009年 | 193篇 |
2008年 | 195篇 |
2007年 | 188篇 |
2006年 | 190篇 |
2005年 | 165篇 |
2004年 | 131篇 |
2003年 | 119篇 |
2002年 | 121篇 |
2001年 | 121篇 |
2000年 | 94篇 |
1999年 | 95篇 |
1998年 | 70篇 |
1997年 | 56篇 |
1996年 | 59篇 |
1995年 | 53篇 |
1994年 | 47篇 |
1993年 | 54篇 |
1992年 | 40篇 |
1991年 | 39篇 |
1990年 | 41篇 |
1989年 | 23篇 |
1988年 | 28篇 |
1987年 | 24篇 |
1986年 | 21篇 |
1985年 | 20篇 |
1984年 | 15篇 |
1983年 | 10篇 |
1982年 | 17篇 |
1981年 | 11篇 |
1980年 | 17篇 |
1979年 | 17篇 |
1978年 | 30篇 |
1977年 | 19篇 |
1976年 | 17篇 |
1975年 | 3篇 |
排序方式: 共有5365条查询结果,搜索用时 15 毫秒
251.
Tucker3 hierarchical classes analysis 总被引:1,自引:0,他引:1
This paper presents a new model for binary three-way three-mode data, called Tucker3 hierarchical classes model (Tucker3-HICLAS). This new model generalizes Leenen, Van Mechelen, De Boeck, and Rosenberg's (1999) individual differences hierarchical classes model (INDCLAS). Like the INDCLAS model, the Tucker3-HICLAS model includes a hierarchical classification of the elements of each mode, and a linking structure among the three hierarchies. Unlike INDCLAS, Tucker3-HICLAS (a) does not restrict the hierarchical classifications of the three modes to have the same rank, and (b) allows for more complex linking structures among the three hierarchies. An algorithm to fit the Tucker3-HICLAS model is described and evaluated in an extensive simulation study. An application of the model to hostility data is discussed.The first author is a Research Assistant of the Fund for Scientific Research-Flanders (Belgium). The research reported in this paper was partially supported by the Research Council of K.U. Leuven (GOA/2000/02). We are grateful to Kristof Vansteelandt for providing us with an interesting data set. 相似文献
252.
Is conduct disorder (CD) as defined in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV; American Psychiatric Association, 1994) a unitary entity, or do variants of CD exist? We addressed this question, using data collected from the parents of 1,669 Australian boys, aged 6–17. Parents were interviewed to assess DSM-IV Conduct Disorder (DSM-IV CD) criteria. Results revealed 2 subfactors of DSM-IV CD symptoms, made up of overt behaviors (e.g., initiating physical fights) and covert behaviors (e.g., stealing without confrontation). Ordinary least squares regressions showed the 2 CD subfactors to be significantly and uniquely predicted by Child Behavior Checklist (CBCL; T. M. Achenbach, 1991a, 1991b) syndromes labeled Aggressive Behavior and Delinquent Behavior, respectively. The results are discussed in terms of the utility of differentiating these 2 variants of CD in future editions of the DSM. 相似文献
253.
254.
Mark F. Ettin 《Group》2001,25(4):253-298
There is a reconsideration and renaissance of interest in expanded conceptions of unconscious processes as they affect individuals and groups (Grotstein, 1999). Recent focus on social unconscious (Hopper, 1996) and cultural unconscious processes (Henderson, 1988) and the nature of intersubjectivity (Harwood and Pines, 1998) raise questions about the location of group analysis. This paper considers the deep structure of group life by examining four functions of the unconscious: repressive, conservative, creative, and mythopoetic (Ellenberger, 1970). On an individual level of analysis, these functions are equated respectively with formative ideas about the: personal–subjective, social–political, intersubjective–cultural and collective–objective unconscious. Group level analogs, as they develop and affect groups and their members, are explored as synthetic, shared, symbolicy and synchronous unconscious processes. 相似文献
255.
Describes the application of a new analytical approach (derived from synergetics, a complex dynamic systems theory) to home observational data of mother–child interactions in average dyads and dyads with children referred for disruptive behavior problems at home and school (n = 11 in each group). Results show that (1) the two groups differed in their daily interactions in predictable ways, and (2) the most frequent patterns of interactions observed in the two groups brought them back repeatedly to behave in similar ways toward each other. The findings are in keeping with a body of literature on mother–child interactions. However, they add to it by providing multivariate, graphical representations of these interactions and by offering a conceptual framework within which to move from an observational to an inferential level of analysis. At that level, the transactional processes that are characteristic of functional and dysfunctional relationships may become apparent. 相似文献
256.
257.
Two apparently contradictory ideas are closely linked in Israeli political discourse: Israel is powerful and independent and Israel is vulnerable and dependent. This study used content analysis and focus groups, as well as existing survey data analyzed by others, to explore how this paradox has been reflected in newspapers and conversations during six different time periods from 1948 to 1996. The goal was not to explain the paradox but to examine its consequences for Israeli perceptions of U.S. policy in the Middle East—and, in the process, to explore Israeli self-images. The nature of U.S. strategic interests was originally treated as problematic and in need of political discussion, but in the past 25 years these interests have become taken for granted. Surprisingly, even after the end of the Cold War, a critical discourse moment in which a reexamination of U.S. interests in the Middle East would seem inevitable, the U.S. role remains taken for granted and largely unexamined. The strong/vulnerable paradox explains this absence of discussion: Examining U.S. interests too closely upsets the delicate balance that keeps the sense of vulnerability in check. 相似文献
258.
Jonathan A. Cowden 《Political psychology》1999,20(4):845-874
Using neo-Freudian analysis, this essay argues that as a child Adlai Stevenson experienced shame, anxiety, and ambivalence about the value and consequences of his initiative and autonomy. He responded with an imaginative coping mechanism, creating an idealized image in which ambition and autonomy were subordinated to duty and service. After a sequence of searing events during the Eriksonian period of identity versus role confusion, he resolved his identity crisis by becoming, in his mind, his idealized image. This conception of Stevenson's character provides a rich explanation of his behavior in the presidential nomination contests of 1952 and 1960. 相似文献
259.
Resilience and Protective Factors in Adolescence: An Autobiographical Perspective From Disadvantaged Youth 总被引:3,自引:0,他引:3
Paul R. Smokowski Arthur J. Reynolds Nikolaus Bezruczko 《Journal of School Psychology》1999,37(4):115-448
This article focuses on the development of adolescent resilience and protective factors within a sample of 86 inner-city high school students in Chicago. Resilience was considered present when (a) children living in conditions of risk (b) show better-than-predicted outcomes (c) presumably due to some intervening process. Conditions (a) and (b) were met using quantitative comparisons. Condition (c), the intervening process, was examined using autobiographical essays to begin to understand protective factors youth consider salient in overcoming adversity. Internal attributes such as perseverance, determination, and having the awareness to learn from the risk-attrition process surfaced in the content analyses. Motivational support from family members and teachers was also highly valued for promoting successful adjustment. 相似文献
260.