全文获取类型
收费全文 | 29653篇 |
免费 | 572篇 |
国内免费 | 3篇 |
专业分类
30228篇 |
出版年
2023年 | 48篇 |
2021年 | 95篇 |
2020年 | 187篇 |
2019年 | 215篇 |
2018年 | 3685篇 |
2017年 | 3072篇 |
2016年 | 2519篇 |
2015年 | 431篇 |
2014年 | 342篇 |
2013年 | 1167篇 |
2012年 | 1007篇 |
2011年 | 2786篇 |
2010年 | 2736篇 |
2009年 | 1727篇 |
2008年 | 2048篇 |
2007年 | 2523篇 |
2006年 | 392篇 |
2005年 | 568篇 |
2004年 | 495篇 |
2003年 | 419篇 |
2002年 | 377篇 |
2001年 | 180篇 |
2000年 | 213篇 |
1999年 | 176篇 |
1998年 | 159篇 |
1997年 | 155篇 |
1996年 | 149篇 |
1995年 | 134篇 |
1994年 | 130篇 |
1993年 | 102篇 |
1992年 | 117篇 |
1991年 | 100篇 |
1990年 | 95篇 |
1989年 | 83篇 |
1988年 | 83篇 |
1987年 | 69篇 |
1986年 | 89篇 |
1985年 | 95篇 |
1984年 | 86篇 |
1983年 | 87篇 |
1982年 | 113篇 |
1981年 | 109篇 |
1980年 | 79篇 |
1979年 | 83篇 |
1978年 | 71篇 |
1977年 | 102篇 |
1976年 | 70篇 |
1975年 | 72篇 |
1974年 | 71篇 |
1973年 | 61篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
91.
R. Barry Ruback Timothy S. Carr Charles H. Hopper 《Journal of applied social psychology》1986,16(5):375-386
Two studies were conducted to investigate the effects of perceived control in two men's prisons, one housing 181 inmates and the other housing 623 inmates. In both prisons, inmates' perceived control over the environment was found to be significantly related to their ratings of their living accommodations, experienced stress, and physical symptoms, even when type of cell was held constant. 相似文献
92.
In two experiments, we investigated the factors that influence the perceived similarity of speech sounds at two developmental levels. Kindergartners and second graders were asked to classify nonsense words, which were related by syllable and phoneme correspondences. The results support the existence of a developmental trend toward increased attention to individual phonemic segments. Moreover, one significant factor in determining the perceived similarity of speech sounds appears to be the position of the component correspondences; attention to the beginning of utterances may have developmental priority. An unexpected finding was that the linguistic status of the unit involved in a correspondence (whether it was a syllable or a phoneme) did not seem particularly important. Apparently, the factors which contribute to the perceived similarity of speech sounds in the classification task are not identical to those which underlie performance in explicit segmentation and manipulation tasks, since in the latter sort of task, syllables are more accessible than phonemes for young children. The present task may tap a level of processing that is closer to the one entailed in word recognition and lexical access. 相似文献
93.
94.
Peter Reder 《Journal of Family Therapy》1986,8(2):139-152
The term 'multi-agency' family is preferred to 'disorganized' family. Multi-agency family systems present special problems of the relationships (a) within the family, (b) between family and professional network, (c) among members of the professional network and (d) between family, network and treatment centre to whom the family is referred. Pressures on the family and professional workers can create a locked system which prevents natural development of the family or effective problem solving by the workers. A systems approach to such problems is presented which includes consultation to the family/professional network system. 相似文献
95.
Peter C. Fishburn 《Synthese》1986,67(2):361-368
Axiomatizations of ordered preference differences typically assume that preferences are ordered. However, the mere assumption that preference differences can be ordered says nothing about whether preferences themselves are ordered. Utility representations for ordered differences without ordered preferences are investigated. 相似文献
96.
97.
This paper reviews the literature on scapegoating, elaborating on the underlying mechanisms before describing the process of scapegoating as it occurred in a neonatal nurse support group. Illustrative vignettes are used to discuss how scapegoating was used by group members to avoid painful feelings arising from their care of extremely ill infants. Group process is related to the stages of the group's development as feelings were addressed more directly and the need to use scapegoating as a defense decreased. 相似文献
98.
In the past decade, encounter groups have become a widely recognised technique of intervention for counsellors. Empirical research on encounter groups is confusing. Trends in research are obscured by a diversity of definitions, methodologies and subjects. This review considers the most significant research on the effectiveness of encounter groups, focusing on positive and negative effects, leader behaviour, group characteristics, participant characteristics, and the maintenance of change. Conclusions are drawn relating the research to practice, with some suggested guidelines for use of encounter groups in counselling interventions. 相似文献
99.
Summary Subjects were shown eight-letter pseudowords tachistoscopically and were asked to report as many letters as possible. The pseudowords, examples of either first- or fourth-order approximation to English, were printed in normal or reversed spelling and were presented in either normal of mirror-imaged letters. Finally subjects were either free to report in any order they wished, or they were instructed to report from left to right or from right to left. With normal letters, the familiarity effect was controlled by the spelling direction, not by the direction of report or the match between direction of report and spelling direction. With mirrored letters, however, order of approximation to English had no effect. The results contradict two existing theories: Mewhort's theory claims that the familiarity of fourth-order materials aids processing at a postcategorical level; it has trouble explaining why the familiarity effect disappeared with mirrored letters and normal spelling. Wolff's theory claims that familiarity aids processing at the feature level; it has trouble explaining why the familiarity effect disappeared with mirrored letters and reversed spelling. 相似文献
100.
Frederick J. Fuoco Barry J. Naster Janice B. Vernon Robert T. Morley Betty L. Smith Andy E. B. Cancelliere 《Behavioral Interventions》1986,1(3):169-182
The purpose of the present experiment was to investigate the efficacy of a goal orientation procedure in their treatment of apathy, isolation, and insufficient goal setting skills in chronic psychiatric residents. The experiment was conducted in a behaviorally-oriented deinstitutionalization program in a state psychiatric hospital. Three male and four female chronic psychiatric residents served as research participants. A group repeated measures design with four within-participant phases (ABA‘B’) was utilized. The goal orientation procedure included a written schedule that was completed by each research participant daily. This Daily Living Schedule required that a behavior be specified by the participant for every half-hour period during the day (8:30 a.m. to 9:00 p.m.). During all four phases of the experiment, research participants were observed on the ward from 8:30 a.m. to 12:00 noon and 1:00 p.m. to 5:00 p.m. for engagement in scheduled target behaviors. The daily scheduling procedure produced substantial increases in appropriate behavior such as social activities, ward jobs, and participation in treatment programs, whereas decrease were produced in inappropriate behavior such as isolation and day time sleeping. 相似文献