全文获取类型
收费全文 | 50274篇 |
免费 | 1823篇 |
国内免费 | 13篇 |
专业分类
52110篇 |
出版年
2019年 | 562篇 |
2018年 | 772篇 |
2017年 | 694篇 |
2016年 | 803篇 |
2015年 | 571篇 |
2014年 | 733篇 |
2013年 | 4543篇 |
2012年 | 1247篇 |
2011年 | 1335篇 |
2010年 | 836篇 |
2009年 | 840篇 |
2008年 | 1218篇 |
2007年 | 1163篇 |
2006年 | 1095篇 |
2005年 | 916篇 |
2004年 | 925篇 |
2003年 | 918篇 |
2002年 | 878篇 |
2001年 | 1537篇 |
2000年 | 1540篇 |
1999年 | 1144篇 |
1998年 | 563篇 |
1996年 | 632篇 |
1995年 | 600篇 |
1994年 | 581篇 |
1993年 | 545篇 |
1992年 | 1133篇 |
1991年 | 1035篇 |
1990年 | 1034篇 |
1989年 | 922篇 |
1988年 | 931篇 |
1987年 | 884篇 |
1986年 | 896篇 |
1985年 | 891篇 |
1984年 | 763篇 |
1983年 | 674篇 |
1982年 | 530篇 |
1981年 | 536篇 |
1979年 | 780篇 |
1978年 | 620篇 |
1975年 | 715篇 |
1974年 | 736篇 |
1973年 | 810篇 |
1972年 | 747篇 |
1971年 | 676篇 |
1970年 | 581篇 |
1969年 | 584篇 |
1968年 | 751篇 |
1967年 | 649篇 |
1966年 | 619篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Process and content issues were evaluated during the first six months of an outpatient schizophrenic group. Compared with groups composed of neurotic and characterological patients, the schizophrenic group scored higher in the Avoiding dimension of the Group Climate Questionnaire (GCQ-S). There was more cohesion and less interpersonal conflict as time went on. Although topics related to engagement and differentiation were discussed, there was no obvious GCQ-S evidence of these first two stages of group development. However, the data supported the presence of stage 3 (individuation) during sessions 20–26. Interpersonal topics dominated the group discussions, followed by issues involving reality-testing, expression of emotions, and advice-giving.The authors wish to thank Dr. K. Roy MacKenzie for his helpful comments on a draft of this paper. 相似文献
992.
Roy D. Morrison II 《Zygon》1984,19(1):65-81
Abstract. This essay sets forth the decisive notions and postulates of process philosophy in Process Philosophy and Social Thought , edited by John B. Cobb, Jr. and W. Widick Schroeder. After commenting on the circumstances in which process philosophy came to be a major option among philosophical theologians, I provide some amplification of those notions and postulates. Then, selecting material from the eighteen articles in the volume, I offer several critical assessments of the process viewpoint and its relation to science and to the contemporary call for liberation. 相似文献
993.
Smokers and nonsmokers were compared on three aspects of academic achievement. Although exactly the same percentage of smokers
and nonsmokers passed the first-year university examination, smokers obtained significantly higher marks. Similarly, smokers
achieved significantly higher marks in their final year examinations in comparison with nonsmokers. Finally, a comparison
of the tutorial essay marks of the smokers and nonsmokers again showed that smokers obtained significantly higher marks than
nonsmokers. These data are consistent with the idea that ambitious students adopt smoking in the belief that it will help
them study and sustain concentration. 相似文献
994.
This paper discusses an exploratory investigation concerned with the long range questions: How does group psychotherapy help patients? and How can psychiatry residency programs best train residents to treat patients in therapeutic groups? Group psychotherapy has come to be accepted in its own right as a decisive contribution to the study of and relief of emotional disorders. As a component of comprehensive psychiatric services it is indispensable. However, while its clinical value has been demonstrated, its scientific validity has not. A Group Process Inventory has been developed by the author and has been utilized for the past two years by psychiatric residents in recording the process of their therapeutic groups in a teaching hospital mental hygiene clinic. The preliminary use of this recording as a clinical-teaching instrument has proven effective. This inventory is being revised to serve as a research instrument. 相似文献
995.
Suicide and rurality in urban society 总被引:3,自引:0,他引:3
Recent findings suggest that suicide increases with rurality, but research on rural suicide leaves many questions unanswered. This study specifies problems of community organization as a reason for expecting a positive effect of rurality on the suicide rate. A multiple regression analysis of county data shows that rurality has a substantial positive effect and is, in fact, the best predictor of the suicide rate among several variables selected from the previous literature. Additional research is needed to test the interpretation that rurality contributes to an incomplete, fragmented form of community organization which influences the suicide rate by disrupting primary relationships. 相似文献
996.
The author focuses on the trend in the family therapy field toward an expanded view of families in the context of their social environments. Within this broader eco-system perspective attention is given to individual-family-social network interrelations with implications for the family therapist.An earlier version of this paper was presented at the American Association for Marriage and Family Therapy, Dallas, Texas, October 29, 1982. Appreciation is expressed to Alice Lynn for her comments and suggestions on an earlier draft of this paper. The author has also benefitted from discussions with Douglas Sprenkle on paradigms and contexts. 相似文献
997.
In the literature on cotherapy, little attention has been focused on maximizing the effectiveness of two therapists working in tandem with families and couples. While cotherapists may at times share their ideas and feelings with their clients, and after the therapeutic session exchange views between themselves, generally little interaction occurs between them during the session. In this paper, a case is presented for more active interactions between cotherapists during the session, in order to expedite and facilitate change and growth in their clients. Anecdotal examples are provided to illustrate the approach. 相似文献
998.
Myron Charles Baker Diana F. Tomback Daniel B. Thompson Tad C. Theimer Dana C. Bradley 《Learning and motivation》1984,15(4):428-440
The functional significance of learned population differences in male song in the white-crowned sparrow was explored in natural populations using playback tests. Laboratory results have shown that learning of the population-specific song seems to take place in early life and is strongly dependent upon the nature of the auditory experience at that time. However, the varied results of recent studies make it difficult to reach a confident conclusion about the ecological functions of song learning. The present research took advantage of naturally occurring variation in the differences between songs of adjacent populations to determine a function relating degree of difference in song to intensity of territorial singing elicited. Applying a typological evaluation of syllable structure to the four segments of the song allowed a crude quantitative ranking of the differences between local songs and playback stimuli. These results, together with those of other studies, suggest a unimodal aggressive response function of males to songs of other males. A maximum response to songs slightly different from the local song environment suggests that male exclusion based upon acquired song components may contribute to the maintenance of discrete and stable song dialects. 相似文献
999.
Four adult male rats were each placed for three hours daily into an apparatus that provided individual compartments for six separate location-defined responses. The available responses consisted of: (1) the opportunity to turn off room lighting, producing darkness; (2) the opportunity to view a female rat; (3) the opportunity to turn off white noise; (4) the opportunity to drink; (5) the opportunity to eat; and (6) "other," representing time in the hallway between compartments. Each subject underwent a series of conditions characterized as an A-B-A-C-A design. Manipulations consisted of the removal of a low-probability response (darkness) and of a high-probability response (escape from noise) in a counter-balanced manner across subjects. The dependent measure for all subjects was the percentage of total session time spent in each compartment. Four predictive rules concerning the redistribution of behavior after response restriction were tested, including the constant-ratio rule, equal time redistribution, the most probable alternative, and the sequential-dependency rule. The results indicate no support for any of the four predictive rules and suggest that empirical assessment of restriction effects is necessary in reinforcement studies involving temporally extended responses. 相似文献
1000.