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   2336篇
  免费   117篇
  2023年   10篇
  2022年   20篇
  2021年   29篇
  2020年   44篇
  2019年   55篇
  2018年   67篇
  2017年   87篇
  2016年   76篇
  2015年   66篇
  2014年   71篇
  2013年   301篇
  2012年   113篇
  2011年   120篇
  2010年   77篇
  2009年   70篇
  2008年   93篇
  2007年   83篇
  2006年   84篇
  2005年   93篇
  2004年   72篇
  2003年   65篇
  2002年   73篇
  2001年   33篇
  2000年   36篇
  1999年   33篇
  1998年   36篇
  1997年   28篇
  1996年   30篇
  1995年   15篇
  1994年   17篇
  1993年   28篇
  1992年   29篇
  1991年   20篇
  1990年   13篇
  1989年   19篇
  1988年   12篇
  1987年   17篇
  1986年   13篇
  1985年   27篇
  1984年   24篇
  1983年   20篇
  1982年   27篇
  1981年   27篇
  1980年   20篇
  1979年   20篇
  1978年   13篇
  1977年   18篇
  1976年   24篇
  1975年   18篇
  1973年   12篇
排序方式: 共有2453条查询结果,搜索用时 15 毫秒
981.
This study compared the influence of HIV risk behaviors and condom use attitudes on condom use among heterosexual African American males. Three models were tested: (a) HIV risk, (b) condom use attitudes, and (c) a model combining the previous two. Brief street intercept interviews were administered to African American males in 2 matched pairs of census tracts. Results are based on 589 males reporting vaginal sex in the last 30 days. The General Linear Test (GLT) was used to test the ability of regression models to reduce error variance. The condom use, attitude model was sufficient to predict frequency of condom use regardless of partner type. The strongest predictors of condom use were condom use enjoyment, social norms, self-efficacy, and social influence.  相似文献   
982.
Twelve stutterers and 12 nonstutterers were investigated in order to measure speech movements of the jaw. They spoke the nonsense word /papapas/ with stress on either the first or second syllable and with three speech rates (fast, moderate, and slow). During these trials, jaw movements were analyzed with a selspot-like optical tracking system. It was shown that stutters and nonstutterers applied the same strategies for realizing jaw movements of accented and unaccented syllables. The first strategy (stiffness variation) was used to achieve fast jaw movements while the second strategy (timing) was used in order to realize jaw movements for accented syllables. These results were taken as evidence for the assumption that, in general, stutterers and nonstutterers used the same control strategies when speaking fluently. However, it was also evident that stutterers produced lengthened jaw opening and closing durations as well as reduced peak velocities and maximal opening and closing displacements. This deviating movement pattern was supposed to reflect motor compensations necessary to achieve fluent speech rather than anomalies of the speech neuromotor system.  相似文献   
983.
Medical schools place considerable emphasis on admissions interviews in the selection of students. Interviews, with unwritten performance criteria and subjective evaluation, contain the potential for unconscious discrimination against certain groups of applicants. This study investigates the contribution of interview scores to the total evaluation of male and female applicants for admission to one medical school in the United States. Findings reveal that interveiw scores are counted more heavily for females than males in arriving at a final ranking for admission. Further, females were rated lower in general than males on interview evaluations. While the magnitude of the associations is small, the combined effect points to a potential for discrimination, however unintended, against women applicants in the present case study.The authors appreciate the valuable criticisms of and comments on an earlier draft from Drs. Sidney Fleming, Dorothy Brinsfiled, Glenn Clark, Maurice Jurkiewicz, and Michael Kutner, some of whom may still take exception to parts of this article.  相似文献   
984.
985.
The presence of narcissism in both therapist and patient results in a collusion that preserves the narcissistic integrity of the therapist and validates the narcissistic injury of the patient. Not only is the narcissistic behavior of the patient condoned, but narcissistic excesses in the therapist are tolerated. The unconscious identification on the part of the therapist with the patient produces anxiety in the therapist which results in treatment that intensifies the pathology of the patient.  相似文献   
986.
A preliminary investigation of beliefs about the influence of the menstrual cycle on work performance was conducted. Undergraduate students were asked to make a pass/fail decision about a borderline exam mark based on a wide variety of educational, medical, and personal information about the candidate and to rate the importance of various factors in their decisions. Three versions of the questionnaire were used, varying only in the menstrual cycle status of the examinee. The results showed that students do believe that the premenstrual and, particularly, menstrual phases have a negative impact on performance. However, in this context, they were considered of minor importance compared with educational and personality factors.  相似文献   
987.
As an extension of Patterson's family coercion model, we hypothesized that parental attributions about the causes of child misbehavior and parental expectancies concerning the effectiveness of parenting techniques are involved in the establishment and maintenance of coercive exchanges. Mothers of 40 conduct-disordered children and 40 matched control children completed questionnaires measuring their attributions regarding the causes of their children's misbehavior and their expectations concerning the general and personal effectiveness of parenting techniques. Results supported the hypotheses: parents of conduct-disordered children were more likely to regard their children's misbehavior as intentional and to attribute it to stable, global causes beyond the parents' control. They also were less likely to see their own parenting as effective. We speculate that these parents hold cognitive stances of blame and helplessness that contribute to aversive parent behavior as well as to parent withdrawal in the face of escalating child aggressiveness.This article is based on a doctoral dissertation conducted by Anne Davison Baden while at Peabody College of Vanderbilt University, and was presented in part at the annual meeting of the American Psychological Association, New Orleans, August 1989.  相似文献   
988.
Increasingly, group psychotherapy takes its place as a valid treatment model for patients with severe character pathology. This paper explores the impact of group treatment on a homogeneous group of patients with narcissistic character problems. The clinical example serves to illustrate the particular dynamics of this patient population; addresses the challenges inherent in treating these patients in a homogeneous, long-term therapy group; and, finally, underscores the countertransference pitfalls in such a clinical situation. Nonetheless, the successful working through of some of these patients' terrifying pathology supports the important of continuing experience and research into this arena.The author wishes to acknowledge with gratitude the invaluable assistance of J. Scott Rutan, Ph.D., in the planning and preparation of this clinical report.  相似文献   
989.
Three experiments are reported comparing high and low-trait anxious subjects in terms of their patterns of semantic activation in response to ambiguous primes, with one threat-related and one neutral meaning. Such primes were followed by targets related to either their threat or neutral meaning, or by unrelated targets, in a lexical decision task. Experiments 1 to 3 employed stimulus onset asynchronies (SOAs) of 750 msec, 500 msec, and 1250 msec, respectively. At 500-msec SOA all subjects showed facilitation for both meanings. At 750-msec SOA the only significant priming effect was that for the threat-related meaning in the high-anxiety group, and a similar trend was found at 1250-msec SOA. Consideration of the patterns of priming for targets following ambiguous threat/neutral primes suggest that at the longer SOAs, high-anxiety subjects consciously “lock on” to a threatening interpretation if one has been made available by earlier automatic spreading activation.  相似文献   
990.
Evidence for a distinction between judged and perceived causality   总被引:1,自引:0,他引:1  
Two experiments investigated Michotte's launch event, in which successive motion of two objects appears to evoke an immediate perception that the first motion caused the second, as in a collision. Launching was embedded in event sequences where a third event (a colour change of the second object) was established as a competing predictor of the second motion, in an attempt to see whether subjects' learning of alternative predictive relationships would influence their causal impressions of launch events. In Experiment 1 subjects saw launch events in which temporal contiguity at the point of impact was varied so that an impact was varied so that an impact itself did not reliably predict when the second object would move. Half of these scenes, however, contained a colour change of the second object which did reliably predict when it would move. In accordance with Michotte's theory, subjects' ratings of the degree of perceived causality were not affected by the colour change. In Experiment 2 subjects saw scenes that contained launch events with or without temporal contiguity and a colour change. These were interspersed with events in which a colour change alone did or did not precede the second motion. Thus, movement of the second object was either contingent on or independent of the impact. Subjects repeatedly (a) rated perceived causality in single launch events and (b) judged the necessity of collisions for movement in the overall set of events. These responses dissociated, in that ratings type (a) showed only a substantial contiguity effect, whereas judgements of type (b) showed both a contingency and a much smaller contiguity effect. These results appear to support a distinction between judged and perceived causality and are discussed with respect to Michotte's theory of direct causal perception.  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