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   60643篇
  免费   1049篇
  国内免费   3篇
  61695篇
  2020年   745篇
  2019年   897篇
  2018年   1265篇
  2017年   1284篇
  2016年   1334篇
  2015年   966篇
  2014年   1145篇
  2013年   5180篇
  2012年   2125篇
  2011年   2127篇
  2010年   1263篇
  2009年   1320篇
  2008年   1857篇
  2007年   1809篇
  2006年   1630篇
  2005年   1350篇
  2004年   1403篇
  2003年   1343篇
  2002年   1266篇
  2001年   1965篇
  2000年   1839篇
  1999年   1378篇
  1998年   662篇
  1997年   570篇
  1996年   634篇
  1995年   576篇
  1994年   558篇
  1993年   551篇
  1992年   1114篇
  1991年   1027篇
  1990年   1001篇
  1989年   973篇
  1988年   937篇
  1987年   873篇
  1986年   863篇
  1985年   912篇
  1984年   738篇
  1983年   638篇
  1982年   486篇
  1979年   763篇
  1978年   568篇
  1975年   608篇
  1974年   685篇
  1973年   701篇
  1972年   607篇
  1971年   566篇
  1970年   484篇
  1968年   612篇
  1967年   532篇
  1966年   509篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
861.
862.
We explore a model that examines how personal and environmental variables explain violent behavior by adolescents. Repeated interviews with youths from 1984–1992 from 10 cities across the United States provided the data. These interviews first occurred with 2,787 youths when they were adolescents (1984–85 and 1986–87) and the interviews were repeated on a subsample of 602 youths when they were young adults (1989–90 and 1991–92). Longitudinal multivariate analyses showed that almost a third of the variance in adolescent violent behaviors was predicted by a combination of personal variables (gender, substance misuse) and environmental variables (history of child abuse, stressful events, traumatic events, and city rates of unemployment). Further, almost a third of the variance in change in violent behaviors from year to year was predicted by prior violent behavior and a combination of personal variables (gender, suicidality, and substance misuse) and environmental variables (stressful events).  相似文献   
863.
Some aspect of psychosocial criteria is commonly utilized by most transplant programs in assessing candidates' acceptability for transplantation. However, regardless of the assessment methodology, information obtained in pretransplant assessments may be limited given the evaluative nature of the assessment as well as the sensitive nature of the contents. Indeed, transplant candidates may present themselves in a favorable fashion, minimizing any negative traits or psychological dysfunction which they perceive might prevent transplantation. Unfortunately, there are limited data addressing the extent to which transplant candidates may present themselves in an overly positive light. This investigation surveys the prevalence of social desirability in lung transplant candidates as well as its association with self-reports of perceived stress. Further, the relationship between social desirability and interviewer ratings of transplant candidacy is examined. Subjects included 24 patients in end-stage organ failure being evaluated for lung transplant candidacy. Subjects completed the Perceived Stress Scale and a brief version of the Marlowe-Crowne Social Desirability Scale. Additionally, subjects were interviewer-rated on the Psychosocial Assessment of Candidates for Transplantation. Results indicate social desirability is a prevalent phenomenon in lung transplant candidates, with more than half of the sample scoring at or above the 84th percentile on the social desirability measure. Further, self-reports of perceived stress are moderately and inversely associated with social desirability (r=–.55,p .01). Social desirability was unrelated to interviewer-ratings of transplant candidates acceptability (r=.13,p .56). Future research might include larger samples of subjects, other organ transplant candidates, and more detailed assessments of symptom distress.  相似文献   
864.
We tested the notion that better foster care adjustment would be observed when the temperaments of mothers and fathers were matched with those of adolescent foster children. We hypothesized that families in which foster parents and foster children had high (easy) scores on subscales of the Revised Dimensions of Temperament Scale (DOTS-R) would also report higher family functioning and higher foster care adjustment than parents and children from families in which one or both family members had low (difficult) scores on these scales. The hypotheses were supported when the mothers and fathers family assessments were used but rejected when the observations of the case managers and adolescents were tested. Methodological and substantive explanations for the findings are discussed and recommendation for foster care practice and continuing research are provided.  相似文献   
865.
This study investigated the prevalence of traumatic brain injury (TBI) in an inpatient psychiatric population. We hypothesized increased prevalence of TBI relative to the general population due to a variety of risk factors observed in psychiatric patients. One hundred (mean age = 34) psychiatric inpatients completed the revised Head Injury Questionnaire. Chart review of 17 subjects reporting injuries established whether injuries were documented in medical records. Sixty-eight percent of this psychiatric population reported one or more injuries in which they were unconscious or dazed. This number is higher than the prevalence in the general population. Injuries were generally of mild to moderate severity; multiple injuries were common. Chart review of 17 subjects reporting TBI indicated that histories of TBI had not been noted in the medical record. Finally, 63% of TBI subjects reported that their injury predated the onset of their psychiatric symptoms. These results suggest a possible role of TBI in psychiatric symptomatology and have implications for psychiatric treatment in this population.  相似文献   
866.
Fetal brain tissue from the occipital or the frontal cortex was implanted into the damaged occipital cortex of adult rats. The animals receiving grafts of embryonic frontal cortex showed partial restoration of brightness discrimination while recipients given homologous implants of occipital cortex were as impaired as those animals with lesions alone. Neither frontal nor occipital grafts aided in the performance of a pattern discrimination problem; both groups of brain-damaged animals were unable to learn the task. Nonetheless, both groups of animals had viable and enlarged grafts with similar neuronal and glial profiles.  相似文献   
867.
Much progress has been made in the assessment and treatment of sexually aggressive men. There remains, however, a great deal of work to be done. Future research should move on three fronts simultaneously: the extension and refinement of assessment methods which will serve to discriminate sex offenders from other persons and different sorts of sex offenders from each other, the further development of, and comparison among, treatment techniques designed to change sex offenders on relevant dimensions, and long-term followups of sex offenders who have been treated with different methods. Basic research concerning not only sex offenders but also the development of human sexuality is also required for the formulation of a theory which will guide future research.  相似文献   
868.
The purpose of this paper is to review the necessary components of a comprehensive group therapy program. The balancing between the didactic and the experiential portions, and an analysis of the selection criteria, along with the rationale for a particular sequencing of elements in the curriculum, are discussed. A line between supervision and personal therapy is drawn. The author describes the milieu necessary for a successful training program to evolve and makes suggestions for improvements. The various experiential aspects of training are presented and critically evaluated. The training situation is examined from the point of view of the faculty, the trainee and the patients involved. The author marshalls evidence indicating that personal group psychotherapy in a patient group is the preferred form for most trainees for the experiential part of the program. The paper concludes that the sharing and cohesiveness of training philosophies and methods by the faculty is a prerequisite to the success of any training program.  相似文献   
869.
The principle of hermeneutical interpretation (i.e., the art and discipline of analyzing the symbols of sacred texts) is explained and applied to the analytical group situation. It is maintained that the approach employed by this methodology provides a viable manner for understanding patients' unconscious communications. In particular, the relationship between metaphorical communication and the hereand now therapeutic experience is discussed. It is argued that the unconscious manifests itself as a set of metaphorical expressions. The paper presents two clinical vignettes illustrating how this hermeneutical methodology can aid the therapist to read the unconscious meanings of such metaphors.  相似文献   
870.
The concept of a curative fantasy includes patient's conscious and unconscious hopes and expectations of what is necessary for their relief of suffering. On entering group psychotherapy these elements emerge in the treatment matrix. This paper describes how patients with significant deficits in their intrapsychic organization express their curative fantasies through the development of selfobject transferences. The concept illuminates aspects of patients entering and forming a group as well as some elements in unanticipated terminations.  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