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   41168篇
  免费   1521篇
  国内免费   13篇
  42702篇
  2018年   633篇
  2017年   580篇
  2016年   669篇
  2015年   486篇
  2014年   606篇
  2013年   3940篇
  2012年   993篇
  2011年   1062篇
  2010年   683篇
  2009年   683篇
  2008年   985篇
  2007年   921篇
  2006年   844篇
  2005年   732篇
  2004年   718篇
  2003年   741篇
  2002年   731篇
  2001年   1248篇
  2000年   1185篇
  1999年   921篇
  1998年   464篇
  1996年   558篇
  1995年   538篇
  1994年   532篇
  1993年   511篇
  1992年   974篇
  1991年   857篇
  1990年   854篇
  1989年   764篇
  1988年   773篇
  1987年   760篇
  1986年   741篇
  1985年   729篇
  1984年   672篇
  1983年   571篇
  1982年   476篇
  1981年   479篇
  1980年   464篇
  1979年   640篇
  1978年   518篇
  1976年   462篇
  1975年   620篇
  1974年   592篇
  1973年   633篇
  1972年   605篇
  1971年   551篇
  1970年   487篇
  1968年   562篇
  1967年   482篇
  1966年   469篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
121.
The present study demonstrates the safety and effectiveness of an outpatient program designed to respond to adolescent-precipitated crises by mobilizing and restructuring the family's kinship system. Families of 75 adolescents at risk for hospitalization were followed up to 24 months after treatment with Systemic Crisis Intervention. Measures of offspring and family functioning, suicidal behavior, institutional use, and treatment costs are presented. Results clearly demonstrate the safety, effectiveness, and economic viability of Systemic Crisis Intervention.  相似文献   
122.
HELM STIERLIN  M.D.  Ph.D. 《Family process》1988,27(2):121-127
Therapists have a mandate to bring about change, and family therapists appear to have unusual leverage to fullfill such a mandate, that is, to facilitate changes rapidly and effectively. Because and in spite of this mandate, the very notion of change deserves critical reflection. The history of ideas and our clinical experience teach us that changes may be problematic. They may come too fast or too slowly, may endure or fade away, may turn out to be desirable or undesirable, equitable or inequitable, and may, when further consequences and larger systems levels are taken into account, be beneficial or disastrous. This essay examines some of the problematical and contradictory aspects of change and delineates two perspectives on change--systemic optimism and systemic pessimism.  相似文献   
123.
The child-rearing beliefs of 32 mothers and 36 day-care providers in Mexico were compared. Day-care providers expected children to master developmental skills at an earlier age than did mothers. Day-care providers more strongly valued the development of independent and cooperative behavior, and placed less importance on obedience. They also reported employing more flexible and nonauthoritarian discipline strategies than did mothers. Mothers and caregivers did not differ in the extent to which they attributed the success of their discipline strategies to their own actions rather than to external factors. Also examined was how mothers' beliefs differed in families characterized by interdependent versus individualistic social structures. In interdependent families, mothers were more likely to believe in later mastery of developmental skills and to make external attributions. These findings suggest that Mexican children experience incongruous social norms as they move between home and day care settings, and that these norms, at least within the home, are associated with the social structural features of the setting.  相似文献   
124.
125.
Depressed affect and time perception   总被引:1,自引:0,他引:1  
  相似文献   
126.
127.
128.
129.
130.
Research in both laboratory and field settings has suggested a link between thermal stress and violent behavior, and both linear and curvilinear models have been investigated. A dearth of field studies prompted the analysis reported here, which is based on data for some 10,000 aggravated assaults occurring the City of Dallas in 1980 (a summer of severe heat stress) and 1981. This analysis replicates and extends certain aspects of recent work by Anderson and Anderson (1984) relating to the so-called linear and curvilinear hypotheses. Thermal stress is measured in two ways: a Discomfort Index (DI), which takes into account the influence of humidity acting in concert with temperature, and ambient temperature. Regression analyses were performed in two stages. In the first, data for all neighborhoods and all days of the study period were combined into ambient temperature and DI models. At the second stage, models differentiated between the three levels of neighborhood socioeconomic status. With weekend controlled, DI and ambient temperature were significant independent variables in the ‘overall’ model and in medium and low status neighborhoods. However, when linear effects were controlled, the curvilinear measures were never significant. The analysis generally tended to confirm Anderson and Anderson's suggestion that a reduction of aggression with increasing temperature does not appear to occur within the normal range of temperatures. This analysis further suggested that the hypothesized curvilinear effect is weak, if not entirely absent, even during conditions of extreme heat.  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