全文获取类型
收费全文 | 25863篇 |
免费 | 468篇 |
国内免费 | 706篇 |
专业分类
27037篇 |
出版年
2023年 | 75篇 |
2022年 | 106篇 |
2021年 | 121篇 |
2020年 | 190篇 |
2019年 | 168篇 |
2018年 | 3694篇 |
2017年 | 2997篇 |
2016年 | 2441篇 |
2015年 | 359篇 |
2014年 | 243篇 |
2013年 | 548篇 |
2012年 | 841篇 |
2011年 | 2765篇 |
2010年 | 2814篇 |
2009年 | 1750篇 |
2008年 | 2046篇 |
2007年 | 2612篇 |
2006年 | 425篇 |
2005年 | 498篇 |
2004年 | 381篇 |
2003年 | 243篇 |
2002年 | 186篇 |
2001年 | 192篇 |
2000年 | 214篇 |
1999年 | 128篇 |
1998年 | 64篇 |
1997年 | 68篇 |
1996年 | 50篇 |
1995年 | 33篇 |
1994年 | 37篇 |
1993年 | 27篇 |
1992年 | 54篇 |
1991年 | 57篇 |
1990年 | 63篇 |
1989年 | 54篇 |
1988年 | 50篇 |
1987年 | 37篇 |
1986年 | 19篇 |
1985年 | 34篇 |
1984年 | 24篇 |
1983年 | 20篇 |
1982年 | 22篇 |
1981年 | 19篇 |
1979年 | 25篇 |
1974年 | 17篇 |
1973年 | 16篇 |
1971年 | 17篇 |
1969年 | 16篇 |
1968年 | 16篇 |
1967年 | 16篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
72.
Jörg R. J. Schirra 《Kognitionswissenschaft》1997,6(4):177-195
How can we explain that an assertion on something perceived can be understood in the same manner by somebody who cannot perceive that scene? This problem bases the interest in computational linguistics in how listener modeling could possibly be harmonized with reference semantics. Mental images substituting real perception appear as a way out. The architecture of the listener model has to be adapted to the creation and use of such pictorial data structures. Furthermore, the relation between the latter and a verbal (i. e., propositional) representation must be understood. The resulting architecture of a listener model with reference semantics can be employed to solve communicational problems from three general classes in a better way, as is demonstrated by an example implementation. 相似文献
73.
Richard Y. Bourhis Lna Cline Moïse Stphane Perreault Sacha Sencal 《International journal of psychology》1997,32(6):369-386
The first part of this paper proposes a continuum of ideological premises that seeks to account for the broad range of immigrant integration policies adopted by Western democratic states. In the second part, a review of Social Psychological models of immigrant acculturation strategies demonstrates the need to explain more clearly the interactive nature of immigrant and host community relations. The Interactive Acculturation Model (IAM) presented next proposes that relational outcomes are the product of the acculturation orientations of both the host majority and immigrant groups as influenced by state integration policies. The model makes predictions regarding the acculturation combinations most likely to produce consensual, problematic, and conflictual relational outcomes between immigrants and members of the host community. Social psychological research is needed to test the validity of the IAM model empirically. 相似文献
74.
75.
76.
Summary feedback involves withholding feedback from subjects until the last trial in a block is completed, and then presenting feedback about each trial. A variation of this method, called average feedback (Young & Schmidt, 1992), presents subjects with only the mean of the trial block. We investigated whether these methods have similar effects on acquisition and retention of a simple motor skill. Five groups of subjects (n = 16 per group) performed 60 acquisition trials of an aiming task involving both spatial and temporal accuracy. We presented average and summary feedback based on either 5-trial blocks or 15-trial blocks and compared these schedules with every-trial feedback. During acquisition, all groups improved with practice, with a slight tendency for the every-trial condition to have less absolute error than the longer summary and average conditions. Analysis of delayed no-feedback retention tests, however, revealed a strong advantage for the 5-trial summary and average conditions compared with the every-trial condition. In addition, we found that for long blocks of acquisition trials without augmented feedback, the performance variability of those trials was associated with retention performance. Results are discussed in terms of how these different manipulations may make feedback less useful during acquisition, but foster the use of certain information processing activities that enhance overall learning. 相似文献
77.
78.
Humphrey and Dahlstrom (1995) presented a study on the comparability of MMPI/MMPI-2 (Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989) profiles in which they concluded that "the bases for clinical interpretation derived from the MMPI and MMPI-2 profiles were sufficiently at variance to require different conclusions" [sic] (p. 2). In this brief critique, we identify procedural and data-analytical deficiencies that invalidate Humphrey and Dahlstrom's argument. Their blanket recommendation based on this argument, namely, that clinicians routinely plot both MMPI and MMPI-2 profiles, is unwarranted. 相似文献
79.
Manuel Barrera Jr. Susan A. Li Laurie Chassin 《American journal of community psychology》1995,23(4):479-507
Investigated ethnicity and parental alcoholism as factors that might influence the stress vulnerability of adolescents. It
extended an initial cross-sectional study of this same sample by adding two annual assessments which allowed for additional
cross-sectional analyses and longitudinal tests. Hispanic and Caucasian adolescents (N=306 at Time 1) completed measures of their own life stress, family conflict, and alcohol use. Their parents reported on adolescents'
internalizing and externalizing symptoms. Cross-sectional analyses at Time 2, and prospective analyses involving Time 1 and
Time 2 measures were, for the most part, consistent with the original study's results. Caucasian adolescents and children
of alcoholic parents appeared to be more vulnerable to stress than Hispanic adolescents and children of nonalcoholic parents.
Family conflict was a partial explanation for this increased vulnerability.
This research was supported by National Institute on Drug Abuse Grant DA05227 to Laurie Chassin (pricipal investigator) and
Manuel Barrera, Jr. (coprincipal investigator). Susan Li was supported by an American Psychological Association Minority Fellowship
Award. Portions of this research were presented at the conference, “Resiliency in Families: Racial and Ethnic Minority Families
in America” that was held at the University of Wisconsin, May 31–June 2, 1994. 相似文献
80.
临床经验对诊断的双重作用及改造 总被引:1,自引:0,他引:1
文中用辩证唯物主义的观点,阐述了临床经验的定义、来源及指导实践过程中的意义,指出其具有促进诊断和引起误诊的双重作用,并用临床病历例子详细说明其双重作用的形式、导致结果及产生的原因。指出临床经验的双重作用在临床工作中的重要性及局限性,提出对经验的改造完善途径,以能充分表现出其促进诊断的作用,而最大限度降低其导致误诊的程度,发挥在临床工作中的良性作用。 相似文献