全文获取类型
收费全文 | 81977篇 |
免费 | 3383篇 |
国内免费 | 27篇 |
出版年
2020年 | 912篇 |
2019年 | 1123篇 |
2018年 | 1558篇 |
2017年 | 1616篇 |
2016年 | 1645篇 |
2015年 | 1185篇 |
2014年 | 1452篇 |
2013年 | 6784篇 |
2012年 | 2654篇 |
2011年 | 2727篇 |
2010年 | 1631篇 |
2009年 | 1674篇 |
2008年 | 2395篇 |
2007年 | 2290篇 |
2006年 | 2171篇 |
2005年 | 1857篇 |
2004年 | 1880篇 |
2003年 | 1777篇 |
2002年 | 1743篇 |
2001年 | 2618篇 |
2000年 | 2425篇 |
1999年 | 1858篇 |
1998年 | 937篇 |
1997年 | 780篇 |
1996年 | 857篇 |
1995年 | 786篇 |
1992年 | 1514篇 |
1991年 | 1424篇 |
1990年 | 1406篇 |
1989年 | 1369篇 |
1988年 | 1355篇 |
1987年 | 1255篇 |
1986年 | 1262篇 |
1985年 | 1345篇 |
1984年 | 1100篇 |
1983年 | 986篇 |
1982年 | 783篇 |
1979年 | 1182篇 |
1978年 | 861篇 |
1976年 | 775篇 |
1975年 | 957篇 |
1974年 | 1084篇 |
1973年 | 1128篇 |
1972年 | 938篇 |
1971年 | 869篇 |
1970年 | 791篇 |
1969年 | 828篇 |
1968年 | 1006篇 |
1967年 | 884篇 |
1966年 | 849篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
811.
812.
E. Sam Overman 《Knowledge, Technology, and Policy》1989,2(2):80-93
The original concept of “social physics” was built on positivist philosophy and scientific method. Evidence from quantum physics
suggests that a postpositivist “social physics” may yet be viable, not because social science should emulate physics, but
because physics is more like social science. The five principles of complementarty, uncertainty, the measurement problem,
nonlocal causation, and participatory collusion are presented in this article to demonstrate the contemporary convergence
of the physical and social sciences into a new social physics.
E. Sam Overman is associate professor of public affairs at the Graduate School of Public Affairs, University of Colorado at
Denver, Denver CO 80204. He recently editedMethodology and Epistemology for Social Science, selected papers by Donald T. Campbell (University of Chicago Press, 1988). He has published other articles on policy physics
and social science philosophy, and has conducted research and published extensively in the area of information resource policy
and management. 相似文献
813.
Peter E. Politser 《决策行为杂志》1989,2(3):149-165
In this paper, 1 describe psychological guidelines for simplifying medical information — methods to aid the perception and recognition of abnormalities in medical test reports. These techniques resemble natural human editing strategies outlined in prospect theory. The methods pre-edit data as humans do but to reduce human effort. I review empirical studies assessing these techniques and discuss needs for further research. 相似文献
814.
In some cases a person's religious beliefs can cause or exaccerbate emotional problems. Sometimes religious concepts can be used to ameliorate a client's problems. In dealing with Christian clients, the RET therapist can utilize the teachings and actions of Jesus in leading a client to recognize irrational beliefs. This paper illustrates and discusses rational teachings and actions of Jesus as regards four basic irrational beliefs and eleven underlying irrational beliefs.Sandra D.M. Warnock, M.A., served as a missionary to Hawaii with the Home Mission Board of the Southern Baptist Convention and as Minister of Outreach at Vinton Baptist Church, Vinton, Virginia. She was Senior Staff Clinician at Hollins Communications Research Institute in Hollins College, Virginia and is currently an adjunct lecturer in Psychology at Southside Virginia Community College in Keysville, Virginia. 相似文献
815.
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
816.
Studies have shown that dyads and groups place significantly more confidence in wrong answers to questions about a jointly witnessed event than do individuals. This experiment was designed to discover whether this misplaced confidence is influenced by prior free collaborative recall of the events in question. The results clearly indicated that prior group remembering lessens the effect, and improves the testimonial validity of both individual and group answers to questions about a jointly witnessed event. Taken in conjunction with other studies, the results imply that two or more witnesses of an event may profitably discuss what happened, but that they may best be interrogated separately in order to maximize the information available to the interrogator and to minimize misplaced confidence. 相似文献
817.
818.
Employment demographics and attitudes that predict preferences for alternative pay increase policies
Dr. Daniel J. Koys Timothy J. Keaveny Robert E. Allen 《Journal of business and psychology》1989,4(1):27-47
A survey of 942 university staff employees shows that performance and cost of living are preferred over seniority as criteria upon which to base pay increases. Multiple regression analysis reveals that preferences for performance-based pay increases are most strongly related to perceptions that merit pay does not decrease co-worker cooperation, perceptions that performance differences exist among co-workers, employment in white collar jobs, and never having belonged to a union. Preferences for seniority-based and cost of living-based pay increases are most strongly related to the perceived need for a union, perceptions that merit pay reduces cooperation, education level, and gender. In addition, preferences for seniority-based pay increases are related to years of service.An earlier version of this paper was presented at the 1989 meetings of the Midwest Academy of Management. 相似文献
819.
Michael M. Granaas 《Behavior research methods》1989,21(6):619-622
Emerson (1988) provided a simple C-language timing routine for use with PC AT class machines. Unfortunately, this version of the timing routine makes use of nonstandard functions that are not available in all C-language packages. A modified version of this timing routine that does not make use of one of these nonstandard functions is provided. This version of TIMEX runs under the widely available Microsoft C 5.1. The need and availability of the remaining four nonstandard C functions is discussed. Constants needed to convert the timing routine units into seconds and milliseconds are also provided. 相似文献
820.
David A. Washburn William D. Hopkins Duane M. Rumbaugh 《Behavior research methods》1989,21(2):281-284
Researchers interested in studying discrimination learning in primates have typically utilized variations in the Wisconsin General Test Apparatus (WGTA). In the present experiment, a new testing apparatus for the study of primate learning is proposed. In the video-task paradigm, rhesus monkeys (Macaca mulatta) respond to computer-generated stimuli by manipulating a joystick. Using this apparatus, discrimination learning-set data for 2 monkeys were obtained. Performance on Trial 2 exceeded 80% within 200 discrimination learning problems. These data illustrate the utility of the video-task paradigm in comparative research. Additionally, the efficient learning and rich data that were characteristic of this study suggest several advantages of the present testing paradigm over traditional WGTA testing. 相似文献