全文获取类型
收费全文 | 73271篇 |
免费 | 2802篇 |
国内免费 | 39篇 |
出版年
2020年 | 769篇 |
2019年 | 931篇 |
2018年 | 1296篇 |
2017年 | 1335篇 |
2016年 | 1424篇 |
2015年 | 983篇 |
2014年 | 1178篇 |
2013年 | 6034篇 |
2012年 | 2151篇 |
2011年 | 2325篇 |
2010年 | 1370篇 |
2009年 | 1402篇 |
2008年 | 2125篇 |
2007年 | 2029篇 |
2006年 | 1799篇 |
2005年 | 1663篇 |
2004年 | 1614篇 |
2003年 | 1517篇 |
2002年 | 1573篇 |
2001年 | 2244篇 |
2000年 | 2143篇 |
1999年 | 1629篇 |
1998年 | 865篇 |
1997年 | 761篇 |
1996年 | 683篇 |
1992年 | 1375篇 |
1991年 | 1315篇 |
1990年 | 1303篇 |
1989年 | 1219篇 |
1988年 | 1135篇 |
1987年 | 1139篇 |
1986年 | 1170篇 |
1985年 | 1242篇 |
1984年 | 1011篇 |
1983年 | 910篇 |
1982年 | 703篇 |
1981年 | 706篇 |
1979年 | 1026篇 |
1978年 | 769篇 |
1976年 | 691篇 |
1975年 | 932篇 |
1974年 | 1026篇 |
1973年 | 1008篇 |
1972年 | 903篇 |
1971年 | 813篇 |
1970年 | 759篇 |
1969年 | 768篇 |
1968年 | 980篇 |
1967年 | 941篇 |
1966年 | 861篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
241.
The Family System Functioning (FSF) scale is a new instrument for measuring dimensions of the intrafamilial environment thought to be important in recovery from major psychiatric illness. Modest statistical correlations were obtained when FSF ratings of laboratory-based family interactions were compared with researcher-guided therapist ratings of FSF based upon the family's behavior in family therapy sessions during the subsequent month. The data from these two settings provide support for the validity of some of the scales. Because of the modest size of the correlations, however, behavior in the laboratory setting may not always be an accurate indicator of how the family will behave in the early weeks of family therapy. 相似文献
242.
Through school-sponsored health fairs, 398 adolescents (153 males and 245 females) between the ages of 14 and 18 completed a questionnaire on their compliance with six of the U.S. Dietary Guidelines. Results indicated that adolescents report highest compliance on "eat a variety of foods" and "eat foods with adequate starch and fiber." Conversely, they indicated low compliance on "reduce sugar intake" and "reduce fat, saturated fat and cholesterol intake." Sex differences were noted on two dietary guidelines. Females reported lower compliance with respect to "maintain desirable body weight." Males, on the other hand, reported lower compliance than females on "reduce salt intake." Given the fact that the dietary guidelines of "reduce fat, saturated fat and cholesterol," "maintain desirable body weight," and "reduce salt intake" are all aimed at reducing cardiovascular risk, the low compliance reported by adolescents may have long-range health implications. 相似文献
243.
244.
245.
246.
Connectionism and cognitive architecture: a critical analysis 总被引:54,自引:0,他引:54
247.
Two modes of learning for interactive tasks 总被引:5,自引:0,他引:5
248.
Janet A. Michello 《Journal of religion and health》1988,27(1):62-70
Within our present health care system, there is a growing movement that argues that our perceptions of health and illness are in need of change. This change includes redefining what we mean by health in terms of the whole person—the emotional, social, and spiritual dimensions of our being, as well as the physical. An increasing number of health professionals and social scientists believe our concepts of health and illness must consider all these aspects of life. It is believed that the quality of life may be enhanced by such perceptions of health, which include social and spiritual factors. Using data from the 1985 Akron Area Survey—The Subjective Quality of Life in the Akron Area—this study explores the effects of spiritual well-being and emotional well-being on health satisfaction. Results indicate that emotional and spiritual factors do significantly contribute to the subjective evaluation of health, especially for individuals who are physically limited.An earlier draft of this paper was presented at the joint session of the Association for the Sociology of Religion and the American Sociological Association, August 20, 1986. The author would like to thank Margaret Poloma, Ph.D., The University of Akron, and Mark Tausig, Ph.D., The University of Akron, for their helpful comments. 相似文献
249.
Charles E. Burt Lawrence H. Cohen Jeffrey P. Bjorck 《American journal of community psychology》1988,16(1):101-122
A longitudinal design was employed to test the main and stress-moderating effects of young adolescents' perceived family environment (Family Environment Scales; FES; Moos & Moos, 1981) on their depression, anxiety, and self-esteem. This study was part of a larger longitudinal project (L. Cohen, Burt, & Bjorck, 1987) that demonstrated the significant cross-sectional effects of the young adolescents' controllable and uncontrollable negative events, and the significant longitudinal effects of the former. The present cross-sectional analyses demonstrated the hypothesized main effects of the FES scores; families perceived as cohesive, organized, and expressive were related to positive psychological functioning, whereas families perceived as conflict-ridden and controlling were related to negative functioning. However, in general these effects were nonsignificant in the longitudinal analyses. Although there were a number of significant Negative Events x FES interactions, in no instance did the pattern support the hypothesized stress-buffering role of positive family climate. 相似文献
250.
Robert A. Caldwell G. Anne Bogat William S. Davidson II 《American journal of community psychology》1988,16(5):609-624
A frequently advocated strategy for increasing the efficiency of child abuse prevention programs is to deliver prevention services to "high-risk" populations. This article critically reviews procedures for the reliable and valid assessment of child abuse potential within an ecological perspective. Factors that limit the usefulness of child abuse risk assessment are discussed. These factors include the uncertain criteria of child abuse and neglect, the low base rate of the phenomenon, and the financial and social costs of such procedures. Finally, the prevention implications of the current and future state of the art in child abuse risk assessment are considered and preventive interventions that do not depend on individual case risk screening are advocated. 相似文献