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   173817篇
  免费   7757篇
  国内免费   157篇
  181731篇
  2020年   2827篇
  2019年   3479篇
  2018年   3507篇
  2017年   3950篇
  2016年   4664篇
  2015年   3973篇
  2014年   4829篇
  2013年   23598篇
  2012年   4553篇
  2011年   3668篇
  2010年   3891篇
  2009年   4832篇
  2008年   3862篇
  2007年   3403篇
  2006年   3996篇
  2005年   4009篇
  2004年   3539篇
  2003年   3173篇
  2002年   2960篇
  2001年   3120篇
  2000年   2960篇
  1999年   3014篇
  1998年   2843篇
  1997年   2678篇
  1996年   2589篇
  1995年   2411篇
  1994年   2386篇
  1993年   2329篇
  1992年   2525篇
  1991年   2375篇
  1990年   2221篇
  1989年   2168篇
  1988年   2106篇
  1987年   2179篇
  1986年   2167篇
  1985年   2403篇
  1984年   2508篇
  1983年   2280篇
  1982年   2369篇
  1981年   2346篇
  1980年   2166篇
  1979年   2192篇
  1978年   2162篇
  1977年   2151篇
  1976年   1929篇
  1975年   2011篇
  1974年   2063篇
  1973年   1961篇
  1972年   1556篇
  1971年   1520篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
942.
An employee recognition program to improve work attendance was conducted for one year in 1986 as part of a 3-year study using the awarding and posting of attendance certificates as the primary method of employee recognition. Compared to sick leave usage during 1985, those employees in the recognition group decreased their use of sick leave by 28%. In 1987, the year following the end of the recognition program, the average sick leave returned to a level higher than the 1986 level. In addition, the sick leave of a nonintervention control group of employees showed a sequential increase each year from 1985 to 1987, with their use in 1986 being 16% greater than those employees in the employee recognition group.  相似文献   
943.
944.
The purpose of this research was to examine the relationship between parents' perceptions of marital satisfaction and family stress and their third grade children's classroom behavior. Twenty-one married couples completed questionnaires during home visits. Behavior observations were made from videotapes of children recorded in their classroom during lunch and group academic periods on each of three days. Frequencies of peer interactions, solitary behaviors, and teacher interactions were coded. Regression analyses showed that mothers' level of marital satisfaction (but not fathers') predicted their children's frequency of peer interactions during lunch. Fathers' level of perceived family stress (but not mothers') predicted their children's frequency of peer interactions during lunch. Neither measure for either parent was related to the frequency of peer interactions, solitary behaviors, or teacher interactions observed during the academic sessions. These findings highlight the importance of assessing the potential differential relation of parent variables to children's trans-situational behaviors, and the examination of these variables in relation to different social-environmental contexts in which children participate outside the home.  相似文献   
945.
Systems of care for children with serious emotional disturbance and their families have generally lacked intensive community-based programs. We describe three types of newly established community-based programs in New York State and present a general evaluation plan for determining which programs work for various children and their families. The three community-based programs are Intensive Case Management, Family-Based Treatment, and Family-Centered Intensive Case Management. Process and outcome evaluations are being conducted for each of these programs. These evaluations make use of common intake and termination instruments, based on a minimum data set, standardized assessment instruments, and a common logic model, thus facilitating the comparison of findings across evaluations.  相似文献   
946.
Direct care and supervisory staff in five residential training programs for persons with mental retardation in North Dakota rated the acceptability of six staff management procedures. Overall, staff rated “Instructions”, “Instructions and Modeling”, “Feedback and Praise”, and “Instructions, Feedback, and Praise”, as significantly more acceptable than “Self-Management” and “Self-Management, Feedback and Praise”. There was a significant group by treatment interaction in which supervisors and direct care staff had significantly different acceptability rating for four of the six procedures. The results were further analyzed by group and implications and future research are discuessed.  相似文献   
947.
This brief report proposes an extension of the traditional Alternating Treatments Design that would be acceptable to use in hospital and residential settings where subjects are often not concurrently available. Concerns about the inability of traditional designs to work in these special situations and the emergence of a “scientist–practitioner split” are discussed. An example of how the Extended Alternating Treatments Design might be used is provided.  相似文献   
948.
The authors explored the relationship between family support and adjustment for adult men in a detention center, as measured by a staff rating scale completed by the appropriate counselor.  相似文献   
949.
The author describes mythical beliefs, thinking errors, and faulty attitudes collected from a group of male juvenile sex offenders. Therapists need this information to develop effective treatment strategies for replacing distortions and misperceptions with correct and moral information as a foundation for change.  相似文献   
950.
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