全文获取类型
收费全文 | 9871篇 |
免费 | 396篇 |
国内免费 | 3篇 |
出版年
2021年 | 107篇 |
2020年 | 172篇 |
2019年 | 158篇 |
2018年 | 239篇 |
2017年 | 243篇 |
2016年 | 305篇 |
2015年 | 204篇 |
2014年 | 271篇 |
2013年 | 950篇 |
2012年 | 458篇 |
2011年 | 475篇 |
2010年 | 300篇 |
2009年 | 294篇 |
2008年 | 431篇 |
2007年 | 443篇 |
2006年 | 397篇 |
2005年 | 373篇 |
2004年 | 359篇 |
2003年 | 358篇 |
2002年 | 351篇 |
2001年 | 178篇 |
2000年 | 134篇 |
1999年 | 152篇 |
1998年 | 149篇 |
1997年 | 139篇 |
1996年 | 124篇 |
1995年 | 114篇 |
1994年 | 103篇 |
1993年 | 94篇 |
1992年 | 117篇 |
1991年 | 104篇 |
1990年 | 88篇 |
1989年 | 80篇 |
1988年 | 80篇 |
1987年 | 81篇 |
1986年 | 80篇 |
1985年 | 107篇 |
1984年 | 100篇 |
1983年 | 84篇 |
1982年 | 85篇 |
1981年 | 91篇 |
1980年 | 93篇 |
1979年 | 82篇 |
1978年 | 85篇 |
1977年 | 91篇 |
1976年 | 91篇 |
1975年 | 69篇 |
1974年 | 81篇 |
1973年 | 52篇 |
1966年 | 50篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
52.
Thomas C. Ryckman 《Synthese》1989,79(2):191-200
Examines the connections among believing, saying, and expressing in situations where the sentence used is a declarative sentence containing at least one proper name. Proposes a new way of understanding these connections. Develops an argument for the thesis that, although we typically believe the singular propositions expressed by our uses of name sentences, we rarely use such sentences because we believe those propositions. 相似文献
53.
Two experiments involving paired comparisons of numerical and nonnumerical expressions of uncertainty are reported. Subjects were timed under two opposing sets of instructions ("choose higher probability" vs. "choose lower probability"). Numerical comparisons were consistently faster and easier than their nonnumerical counterparts. Consistent distance and congruity effects were obtained, illustrating that both numerical and nonnumerical expressions of uncertainty contain subjective magnitude information, and suggesting that similar processes are employed in manipulating and comparing numerical and verbal terms. To account for the general pattern of results obtained, Holyoak's reference point model (1978) was generalized by explicitly including the vagueness of the nonnumerical expressions. This generalized model is based on the notion that probability expressions can be represented by membership functions (Wallsten, Budescu, Rapoport, Zwick, & Forsyth, 1986) from which measures of location for each word, and measures of overlap for each pair can be derived. A good level of fit was obtained for this model at the individual level. 相似文献
54.
In this study, we investigated bases for encoding linguistic stimuli in short-term memory. Past research has provided evidence for both phonological (sound-based) and cherological (sign-based) encoding, the former typically found with hearing subjects and the latter with deaf users of sign language. In the present experiment, encoding capabilities were delineated from encoding preferences, using 58 subjects comprising six groups differing in hearing ability and linguistic experience. Phonologically related, cherologically related, and control lists were presented orally, manually, or through both modalities simultaneously. Recall performance indicated that individuals encode flexibly, the code actually used being biased by incoming stimulus characteristics. Subjects with both sign and speech experience recalled simultaneous presentations better than ones presented orally or manually alone, which reveals the occurrence of enhanced encoding as a function of linguistic experience. Total linguistic experience appeared to determine recall accuracy following different types of encoding, rather than determining the encoding basis used. 相似文献
55.
Two groups of singers (n = 12,13) and a group of nonsingers (n = 12) each produced the national anthem by (1) speaking and (2) singing the words and by (3) humming the melody. Regional cerebral blood flow (rCBF) was measured at rest and during each phonation task from seven areas in each hemisphere by the 133Xe-inhalation method. Intrahemisphere, interhemisphere, and global rCBF were generally similar across phonation tasks and did not yield appreciable differences among the nonsingers and the singers. 相似文献
56.
57.
Jeffrey Coney 《Current Psychology》1989,8(4):316-321
This article describes a FORTRAN 77 subroutine which manipulates the audio hardware facilities on the Amiga microcomputer.
The subroutine may be instructed to produce either tones or musical notes on any combination of four independent channels.
Frequency, volume, and type of waveform are passed to the subroutine as parameters. Some limitations in relation to sound
production on the Amiga are discussed. 相似文献
58.
Audrey Thomas McCluskey 《Sex roles》1989,21(1-2):113-126
Traditional definitions of feminism do not hold for some black women like Mary McLeod Bethune who had to overcome the dual burdens of race and sex in order to build a school for black girls in the racially tense South during the early part of the 20th century. Ever a pragmatist, Bethune seized the opportunity offered by the rhetoric of domesticity and certain stereotypical views of blacks in order to advance the higher cause of uplift and self-sufficiency for black women through education. 相似文献
59.
Jeffrey Schwartz Jefferson M. Fish 《Journal of Rational-Emotive & Cognitive-Behavior Therapy》1989,7(4):219-236
In an attempt to extend Bandura's theory of self-efficacy, we investigated the hypothesis that increases in self-efficacy, based on mastery experiences, would lead to improvements in mood and problem solving among dysphoric subjects.College students (N=79), classified as dysphoric or nondysphoric by the Beck Depression Inventory, were randomly assigned to anagram training groups that received bogus bar graphs suggesting either task ease or difficulty. Before and after training, subjects rated themselves on depressive affect (DACL) and self-efficacy. A difficult anagram task and a final DACL rating completed the procedure.Anagram training conditions did not lead to differential self-efficacy. However, multiple regression analyses showed that self-efficacy was related to depressive symptoms. Greater DACL decreases after training were seen in dysphoric subjects who reported higher posttraining self-efficacy. This improved mood is consistent with Bandura's theory. An unexpected finding among dysphoric subjects was that the higher their self-efficacy was, the lower was their final anagram performance. It appears that dysphoric/high self-efficacy subjects may have become more demoralized than dysphoric/low self-efficacy subjects when they encountered a need for much greater effort expenditure on the difficult anagram task.The findings suggest that skills training interventions which raise self-efficacy may be most effective in reducing depressive symptoms. The relevance of effort expenditure to the development of competine in depressed undiriduals appears to merit further investigation.where he served previously as Director of Clinical Psychology and as Chairperson of the Department of Psychology.Jeffrey Schwartz, Ph.D., a clinical psychologist, has been a staff member at the Cliffwood Mental Health Center in Englewood, New Jersey for the past five years. He is also engaged in private practice in New York City.Jefferson M. Fish, Ph.D., is Professor of Psychology at St. John's University in New York City, where he served previously as Director of Clinical Psychology and as Chairperson of the Department of Psychology.This paper is based on the first author's Ph.D. dissertation in Clinical Psychology at St. John's University under the direction of the second author. Both authors wish to thank Jeffrey Nevid and John Hogan for their support and contributions as committee members, and Marc Garcia for his invaluable assistance with data analysis. Requests for reprints should be addressed to the second author, Department of Psychology, St. John's University, Jamaica, New York 11439. All other correspondence should be directed to the first author at the same address. 相似文献
60.
HyperCard (Atkinson, 1987) is a new development environment for the Macintosh that shows promise for use in psychological research and testing. In this paper, we discuss the development of HyperCard stackware with which a block-design task similar to that of the Wechsler Adult Intelligence Scale-Revised (WAIS-R) can be administered. The reliability and validity of the computerized block-design task was evaluated by administering both the computerized task and the WAIS-R subtest to college undergraduates. Results indicated that the computerized task’s reliability compared favorably with that of the WAIS-R subtest. Validity coefficients were equivocal; although an elapsed-time measure showed moderate correlation between the tasks, the numbers of designs correctly completed in each condition were not significantly correlated. 相似文献