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   59638篇
  免费   2311篇
  国内免费   23篇
  61972篇
  2019年   603篇
  2018年   860篇
  2017年   890篇
  2016年   962篇
  2015年   716篇
  2014年   845篇
  2013年   4184篇
  2012年   1597篇
  2011年   1627篇
  2010年   1058篇
  2009年   984篇
  2008年   1498篇
  2007年   1443篇
  2006年   1295篇
  2005年   1182篇
  2004年   1136篇
  2003年   1089篇
  2002年   1118篇
  2001年   1771篇
  2000年   1732篇
  1999年   1298篇
  1998年   626篇
  1997年   587篇
  1996年   576篇
  1992年   1228篇
  1991年   1170篇
  1990年   1167篇
  1989年   1045篇
  1988年   1044篇
  1987年   1007篇
  1986年   1064篇
  1985年   1126篇
  1984年   894篇
  1983年   802篇
  1982年   569篇
  1981年   581篇
  1979年   1004篇
  1978年   708篇
  1977年   653篇
  1976年   657篇
  1975年   863篇
  1974年   1032篇
  1973年   1091篇
  1972年   892篇
  1971年   875篇
  1970年   825篇
  1969年   845篇
  1968年   1101篇
  1967年   979篇
  1966年   932篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
San Diego suicide study: comparison of gay to straight males   总被引:1,自引:0,他引:1  
Previous large studies of completed suicides have not considered sexual orientation in their data analyses. In this study, data from the known homosexual subpopulation (13 males, aged 21-42) in a series of 283 suicides were examined. They were compared with all other aged male suicides 21-42 (n = 106). Both groups showed considerable substance abuse plus a variety of other psychiatric diagnoses. Both also had a high frequency of relationship difficulties near the time of death. Gays who committed suicide did not have a history of more police trouble and were no more likely to be living alone than the comparison group. They did not have more prior suicide attempts or previous psychiatric treatment. We conclude that, among the factors examined here, there appears to be little difference between gay and heterosexual male suicides.  相似文献   
993.
Younger adult students between 19 and 24 years of age (M = 21.3 years), older adult students between 61 and 76 years of age (M = 67.9 years), and older adult nonstudents between 62 and 76 years of age (M = 68.5 years) were assessed for health (self-ratings of physical and mental health), social functioning (self-ratings of physical and mental activity, perceived role activity level, perceived roles, locus of control, and age-norm expectations), and cognitive functioning (Wechsler Adult Intelligence Scale-Revised vocabulary and block design, and paired associate memory). Age differences were observed in self-ratings of health, social roles, intellectual performance, and memory. No student status differences were observed. The results are discussed in terms of plasticity of intellectual function and characteristics of student status in later adulthood.  相似文献   
994.
Fluid intelligence belongs to that cluster of intellectual abilities evincing aging loss. To examine further the range of intellectual reserve available to aging individuals and the question of replicability in a new cultural and laboratory setting, 204 healthy older adults (mean age = 72 years; range = 60-86) participated in a short-term longitudinal training study. For experimental subjects, 10 sessions consisted of cognitive training involving two subability tests (Figural Relations, Induction) of fluid intelligence. The pattern of outcomes replicates and expands on earlier studies. Older adults have the reserve to evince substantial increases in levels of performance in fluid intelligence tests. Transfer of training, however, is narrow in scope. Training also increases accuracy of performance and the ability to solve more difficult test items. Difficulty level was estimated in a separate study, with a comparable sample of N = 112 elderly adults. Future research is suggested to examine whether intellectual reserve extends to near-maximum levels of performance.  相似文献   
995.
Short scales were developed to measure three broad dimensions of personality in the National Health and Nutrition Examination Survey (NHANES I) Epidemiologic Followup Study. Items to measure neuroticism were selected rationally from the General Well-Being Schedule, and items to measure extraversion and openness to experience were selected by multiple regression from the NEO Personality Inventory. In a sample of 654 men and women from the Augmented Baltimore Longitudinal Study of Aging, all three short scales showed clear evidence of convergent and discriminant validity against full scales in self-reports, and against peer and spouse ratings. Because they were developed and validated on a sample with a comparable age range, the NHANES scales should be useful in examining age trends in these three personality dimensions in a national sample.  相似文献   
996.
Homosexuals, bisexuals, and heterosexuals were compared on self-reported love preferences and ideals. In general, the three groups tended to agree on ideal characteristics of love objects, love relationships, and love related beliefs. Nevertheless, the groups differed significantly on preferences and beliefs related to love-object sex, residential proximity, ethnic background, physical intimacy, freedom from feelings of jealousy, sexual fidelity, emotional intimacy, and the importance of religious or legal acknowledgment.An early version of this paper was presented at the Annual Meeting of the National Council on Family Relations, in San Francisco, October 1984, Journal Series No. 2973 of the Hawaii Institute of Tropical Agriculture and Human Resources.  相似文献   
997.
The deleterious effects of occupational stress on worker health and well-being have been described in numerous reports for a wide range of work groups. Work overload (and underload), deadline pressures, role Stressors, underutilization of abilities, and physical discomfort have been identified as work factors associated with increased stress symptom reporting. The relationship between work stress and accident/injury occurrences is less clearly documented, although scattered reports in the literature suggest a contributory role for stress in the accident process. In this article, data linking stress to unsafe work behavior are reviewed and a model is proposed wherein accidents can arise from impaired worker capabilities (e.g., slower reaction time) brought about by stress symptom activity (e.g., anxiety). The potential usefulness of stress management training (SMT) for shortcircuiting the stress/accidents cycle by alleviating stress symptoms is discussed in light of recent empirical research.Portions of this article were presented at the Third Annual Scientist/Practitioner Conference in Industrial/Organizational Psychology, Virginia Beach, Virginia, October, 1982.  相似文献   
998.
999.
This article describes some essential computer skills needed by psychology students seeking careers in business. It is suggested that students become familiar with computer software packages in the following areas: statistical analyses, wordprocessing, spreadsheets, data base managers, and graphics. Discussion is provided.Paper presented at the 57th Annual Convention of the Midwestern Psychological Association, Chicago, Illinois, May 1–3, 1985.  相似文献   
1000.
Cast of Characters Work conceives of the personality as a naturally organized unique group of characters who, together, function in an internal system. All characters bring their own histories, perceptions, feelings, beliefs, and behaviors to life's situations. Their survival strategies and interrelationships are felt as anxiety, conflict, ambivalence, or confidence. Heightening awareness of these multiple, simultaneous events increases access to the actual living process. The complex inner world of individuals, couples, and families can be precisely explored by working directly with each character and their relationships. Objectives are accountability and more functional, flexible, and satisfactory arrangements among characters internally and in couples and families.Also in private practice at 2 Pine Circle, Urbana, IL 61801.  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