首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   82296篇
  免费   2461篇
  国内免费   30篇
  2020年   680篇
  2019年   889篇
  2018年   4308篇
  2017年   3747篇
  2016年   3271篇
  2015年   1099篇
  2014年   1154篇
  2013年   5104篇
  2012年   2465篇
  2011年   4189篇
  2010年   3561篇
  2009年   2639篇
  2008年   3352篇
  2007年   3750篇
  2006年   1674篇
  2005年   1628篇
  2004年   1497篇
  2003年   1443篇
  2002年   1351篇
  2001年   2131篇
  2000年   2081篇
  1999年   1561篇
  1998年   715篇
  1997年   649篇
  1996年   611篇
  1994年   607篇
  1992年   1309篇
  1991年   1204篇
  1990年   1230篇
  1989年   1107篇
  1988年   1108篇
  1987年   1069篇
  1986年   1061篇
  1985年   1068篇
  1984年   905篇
  1983年   791篇
  1982年   603篇
  1979年   957篇
  1978年   702篇
  1977年   631篇
  1975年   797篇
  1974年   851篇
  1973年   938篇
  1972年   741篇
  1971年   669篇
  1970年   619篇
  1969年   691篇
  1968年   791篇
  1967年   717篇
  1966年   701篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
The present study examined the hypothesis that individuals are more influenced by a drug name than by the side effects associated with that drug when making recommendations regarding regulation. Subjects recommended the amount of regulation that should exist for eight drugs ranging from aspirin to LSD. One third of the subjects were asked to make recommendations based only on the drug name. Another third made recommendations based only on the facts associated with the drugs (i.e., side effects, symptoms). A final third made recommendations based on both facts and the drug name. Results indicated that, when given only the facts, subjects' recommendations deviated greatly from the actual regulation of the drugs but that the facts were ignored if subjects knew the name of the drug. These results suggest that critical information may be ignored when decisions are made about drug regulation. The implications for self-regulated drug use are discussed.  相似文献   
942.
A program using behavioral practice, assertiveness training, and social and contrived reinforcers was developed to establish and maintain automobile safety belt use by young children. Sixteen children (ages 4.8 to 7 years) who never used their safety belts during a 5-day preexperimental observation period were randomly assigned to two groups of eight each. A multiple baseline design across groups was used to evaluate the effectiveness of the training program. During the 8-day baseline period for Group 1, no children used their safety belts when unobtrusively observed while being driven from school. During the 26-day intervention period, the children were buckled up on 96% of the observations. Follow-up probes conducted 2–3 months after program discontinuance found safety belt use to range from 86% to 100%. For Group 2, the 14-day baseline safety belt use averaged 6% and increased to a mean of 81% during the 20-day training and maintenance program. Follow-up probes 2–3 months later found safety belt use to occur during 75% to 96% of the observations. Parent questionnaires indicated the generalizability and social validity of the program.  相似文献   
943.
To facilitate the classroom and workshop integration of three autistic clients, we examined the feasibility of teaching them to respond appropriately without the continual presence of specially trained treatment providers. Within a multiple baseline design, a 4-step treatment process was implemented to promote durable responsive performance. Results indicated that the therapist could be removed from the treatment environment and that appropriate behavior could be successfully maintained in community settings with only infrequent and delayed contingencies.  相似文献   
944.
945.
As part of a prospective, longitudinal study of suitability for and outcome of psychoanalysis, 22 patients were evaluated for changes in the level and quality of their object relations. These patients had been accepted for supervised analysis with candidates in training by senior analysts who had diagnosed them as neurotic. The majority of these patients reported difficulties in relationships as at least one of their reasons for originally seeking psychoanalytic treatment. Prior to beginning analysis, each patient was given a battery of psychological tests. One year after the termination of analysis, the test battery was readministered and a followup interview was conducted separately with each patient and analyst. Ratings of change based on patient and analyst interviews and comparisons of psychological tests before and after treatment all showed statistically significant improvement in the level and quality of object relations for this patient group. The results of this study support what is often observed in clinical practice, that psychoanalysis has a positive effect on the level and quality of a patient's object relations.  相似文献   
946.
Controversies about the value of the manifest dream in psychoanalysis are usually a matter of semantics. The author concludes that two clinically meaningful questions about the manifest dream can be asked: Is the patient's report of a dream useful in formulating an interpretation if no formal associations to the dream elements are given? Inasmuch as such reports always include some kind of associations, and the analyst always possesses considerable knowledge about the patient, the answer to this question would seem to be "Yes, at least at times." In what ways can the manifest dream contribute to our understanding of the dream and the dreamer? Both the literature and clinical experience indicate that there are many ways; these are summarized in an appendix. One approach, the direct decoding of manifest dream elements, is discussed in some detail. Several examples of the undisguised appearance of memories of childhood traumatic experiences in the manifest dream are presented.  相似文献   
947.
L G Streetman 《Adolescence》1987,22(86):459-464
The self-esteem of 93 unmarried females between the ages of fourteen and nineteen was measured upon entry into several state-sponsored training programs. Some significant differences were discovered concerning the impact of early motherhood on these individuals. The symbolic importance of motherhood, as a passage into adult status, and the intervening effects of normative group anchorage may mediate between individuals' cognitive ability and their level of self-esteem.  相似文献   
948.
Handedness of hypothetically psychosis-prone subjects   总被引:1,自引:0,他引:1  
  相似文献   
949.
950.
Productivity and constraints in the acquisition of the passive   总被引:3,自引:0,他引:3  
S Pinker  D S Lebeaux  L A Frost 《Cognition》1987,26(3):195-267
  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号