全文获取类型
收费全文 | 4319篇 |
免费 | 234篇 |
国内免费 | 1篇 |
出版年
2024年 | 12篇 |
2023年 | 68篇 |
2022年 | 73篇 |
2021年 | 108篇 |
2020年 | 143篇 |
2019年 | 118篇 |
2018年 | 250篇 |
2017年 | 230篇 |
2016年 | 217篇 |
2015年 | 132篇 |
2014年 | 152篇 |
2013年 | 567篇 |
2012年 | 323篇 |
2011年 | 338篇 |
2010年 | 218篇 |
2009年 | 95篇 |
2008年 | 294篇 |
2007年 | 213篇 |
2006年 | 213篇 |
2005年 | 114篇 |
2004年 | 105篇 |
2003年 | 81篇 |
2002年 | 66篇 |
2001年 | 27篇 |
2000年 | 59篇 |
1999年 | 29篇 |
1998年 | 19篇 |
1997年 | 15篇 |
1996年 | 15篇 |
1995年 | 12篇 |
1994年 | 17篇 |
1993年 | 13篇 |
1992年 | 15篇 |
1991年 | 8篇 |
1990年 | 15篇 |
1989年 | 11篇 |
1988年 | 7篇 |
1987年 | 15篇 |
1985年 | 7篇 |
1981年 | 6篇 |
1979年 | 8篇 |
1978年 | 6篇 |
1976年 | 7篇 |
1975年 | 5篇 |
1974年 | 6篇 |
1973年 | 11篇 |
1971年 | 12篇 |
1968年 | 14篇 |
1966年 | 7篇 |
1965年 | 6篇 |
排序方式: 共有4554条查询结果,搜索用时 31 毫秒
41.
Mental models constitute an alternative to the rule-based systems in the explanation of human reasoning (Johnson-Laird, 1983). In this paper, we claim that the concept of believability generally used to categorize content and context effects is of little use within a semantic theory. Thus, we propose the use of categories that are directly extracted from subjective relations among concepts within the reasoning problem. We demonstrate that manipulations based on this kind of categorization produce predictable patterns of responses in reasoning problems. We present two experiments to test our predictions, using conditional and syllogistic reasoning problems, and in both cases, we demonstrate the influence of conceptual knowledge not only in natural contexts, but also in experimentally created artificial contexts. 相似文献
42.
Carlos E. Alchourrón 《Studia Logica》1996,57(1):5-18
The purpose of the paper is to present a logical framework that allow to formalize a kind of prima facie duties, defeasible conditional duties, indefeasible conditional duties and actual (indefeasible) duties, as well as to show their logical interconnections. 相似文献
43.
44.
Marc Berthiaume Hélène David Jean-François Saucier François Borgeat 《Sex roles》1996,35(11-12):781-800
This study was designed to examine the relationship between gender role orientation and psychological adjustment during pregnancy and the postpartum period in a large sample of French-speaking Caucasian mothers. Gender role was assessed with the Bem Sex Role Inventory, which classifies subjects into four categories: androgynous, masculine, feminine, and undifferentiated. A discriminant analysis showed a relationship between androgyny and the following measures of psychological adaptation: self-esteem, satisfaction with social support, and level of apprehension toward perinatal stressors. The masculine gender role was linked with self-esteem, work involvement, age, and severity of perinatal stress. No relationship was found between gender role and the level of antenatal or postnatal depressive symptomatology. Stress, marital support, and social support were among the predictors of postpartum depression, which underlined the importance of taking these variables into account when studying the well-being of mothers during the postnatal period. Results are discussed in light of previous literature on the association between gender role and motherhood. The limitations of Bem's model and inventory are also considered. 相似文献
45.
Summary The dependence of the subjective vertical (SV, the angle between a subjective vertical line and body median plane) on the gravity vertical (body tilt position, angle ) and on the optical vertical (i.e., a field of parallel lines seen as background to the line to be adjusted) was investigated. The SV was measured under dry and wet conditions at different degrees of body tilt attained in either clockwise (CW) or counterclockwise (CCW) progression.The measured difference in between field-of-lines left and right of the line is smallest at the upright position (=O°) and largest at =150°/165°. All body positions show a -difference between CW and CCW attainment (hysteresis), this too being least at upright and greatest at inverted body positions.These results, and changes of with test time, are discussed relative to the hypothesis that efficiency of the statolith organs decreases with body tilt increase, favouring increase of interference of somatoreceptors and the optical reference. 相似文献
46.
Helena Rasiowa 《Studia Logica》1979,38(4):317-335
Extended algorithmic logic (EAL) as introduced in [18] is a modified version of extended +-valued algorithmic logic. Only two-valued predicates and two-valued propositional variables occur in EAL. The role of the +-valued logic is restricted to construct control systems (stacks) of pushdown algorithms whereas their actions are described by means of the two-valued logic. Thus EAL formalizes a programming theory with recursive procedures but without the instruction CASE.The aim of this paper is to discuss EAL and prove the completeness theorem. A complete formalization of EAL was announced in [20] but no proof of the completeness theorem was given. 相似文献
47.
C Krauss V Scholz M Kn?pfel 《Psychiatrie, Neurologie, und medizinische Psychologie》1977,29(10):606-609
The authors report their experience with a special form of psychodrama for the treatment in small groups of neurotic children aged five to fifteen. The acting out of ambivalent, partly unconscious and restrained tendencies and inclinations by playing, i.e., by taking roles in spontaneous performances, is followed by alternation of identification in the group and, possibly, careful indirect verbalization by the therapeutist and/or group, of which the purpose is to arrive at a reorientation of the attitudes of patients and a consolidation of the newly won attitude. 相似文献
48.
Helena de Bres 《Journal of applied philosophy》2015,32(3):275-292
The small portion of philosophical work on global distributive justice that directly discusses particular agents, institutions or practices in global politics tends to focus on a narrow range of the existing set. The emphasis is chiefly on bilateral diplomacy or intergovernmental organisations, to the neglect of a variety of more recent forms of transnational governance, many of which incorporate non‐state actors, have more limited membership, involve informal and dynamic structures, employ cooperative and reflexive methods for ensuring compliance, and operate largely out of the public eye. This article considers how philosophers should conceive of distributive justice in relation to these neglected sites of transnational governance, using the International Organization for Standardization (ISO) as an illustration. 相似文献
49.
50.