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   13922篇
  免费   435篇
  国内免费   5篇
  14362篇
  2021年   96篇
  2020年   141篇
  2019年   193篇
  2018年   236篇
  2017年   250篇
  2016年   323篇
  2015年   222篇
  2014年   299篇
  2013年   1484篇
  2012年   500篇
  2011年   530篇
  2010年   361篇
  2009年   337篇
  2008年   486篇
  2007年   552篇
  2006年   519篇
  2005年   490篇
  2004年   449篇
  2003年   461篇
  2002年   450篇
  2001年   199篇
  2000年   224篇
  1999年   198篇
  1998年   237篇
  1997年   212篇
  1996年   194篇
  1995年   178篇
  1994年   200篇
  1993年   167篇
  1992年   177篇
  1991年   160篇
  1990年   137篇
  1989年   147篇
  1988年   152篇
  1987年   149篇
  1986年   145篇
  1985年   162篇
  1984年   183篇
  1983年   193篇
  1982年   213篇
  1981年   187篇
  1980年   169篇
  1979年   150篇
  1978年   199篇
  1977年   171篇
  1976年   173篇
  1975年   159篇
  1974年   165篇
  1973年   152篇
  1972年   109篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
131.
The present study was conducted to examine the hypothesis that compliant chronically ill patients, typically described as adjusted, reinforce more positive social environments using behavioral controls than noncompliant patients, typically described as maladjusted. Specifically, it is hypothesized that diet-compliant chronic hemodialysis patients emit significnatly more active involvement-in-treatment behaviors and more social behaviors than diet-noncompliant chronic hemodialysis patients. Subjects, who ranged in age from 30 to 77 years, were outpatients at a kidney center. Behavioral observations were conducted to assess the occurrence or frequency of (1) four involvement-in-treatment behaviors that are routinely taught to all patients and (2) two social behaviors, which were patient verbalizations and smiles. The results showed that compliant patients emitted significantly more involvement-in-treatment behaviors and smiles than noncompliant patients. Results support the proposed control framework that compliant, in contrast to non-compliant, chronically ill patients have recourse through positive behavioral controls when adjusting to the stresses of illness. It was proposed that through these controls, compliant patients reinforce positive environments rather than simply respond to life circumstances as given.  相似文献   
132.
133.
Robert E. Koslow 《Sex roles》1987,17(9-10):521-527
The ability of males and females to use visual-spatial imagery as a facilitator of symbolic motor skill acquisition was investigated. Subjects, ordered by gender into control and mental imagery groups, performed 15 trials on a mirrored drawing task. The results indicated that, although both male and female mental imagery groups performed the task more skillfully than the control groups, the male mental imagery group scores over the early stages of performance were better as compared to the female mental imagery group scores. This difference was eradicated during the latter stages of performance. The findings, in addition to supporting the positive effects of mental imagery, lend support to the hypothesis that sex-related differences in selected visual-spatial tasks may be amendable through training followed by practice.  相似文献   
134.
135.
136.
137.
138.
139.
140.
This study uses data from adolescents matched with data from their friends to examine whether reference group effects on adolescent sexuality should be thought of as operating through the sharing of norms or the modeling of behavior. We observe that perception of attitudes has such a trivial reality component and such a strong autistic component that it cannot serve as a mechanism of peer influence. Perception of sexual behavior has a reality component which is as large as its autistic component, and large enough to serve as a route of influence. We reach two conclusions: (1) Reference group effects on adolescent sexual behavior probably work through behavior modeling rather than through normative influence. (2) Studies which infer peer influence on sexual behavior using only perception of peers will arrive at erroneous conclusions.  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