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   3028篇
  免费   113篇
  国内免费   4篇
  2021年   22篇
  2020年   36篇
  2019年   47篇
  2018年   71篇
  2017年   77篇
  2016年   66篇
  2015年   54篇
  2014年   53篇
  2013年   370篇
  2012年   124篇
  2011年   116篇
  2010年   71篇
  2009年   88篇
  2008年   94篇
  2007年   118篇
  2006年   97篇
  2005年   95篇
  2004年   92篇
  2003年   86篇
  2002年   104篇
  2001年   70篇
  2000年   63篇
  1999年   56篇
  1998年   42篇
  1997年   42篇
  1996年   45篇
  1995年   44篇
  1994年   41篇
  1993年   35篇
  1992年   51篇
  1991年   28篇
  1990年   35篇
  1989年   33篇
  1988年   32篇
  1987年   35篇
  1986年   31篇
  1985年   28篇
  1984年   34篇
  1983年   34篇
  1982年   23篇
  1981年   34篇
  1980年   38篇
  1979年   27篇
  1978年   32篇
  1977年   30篇
  1976年   23篇
  1975年   29篇
  1974年   27篇
  1968年   25篇
  1966年   20篇
排序方式: 共有3145条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
The current study was designed to gain a better understanding of the nature of the relationship between substance use and sexual risk taking within a community sample of women (N = 1,004). Using confirmatory factor analysis, the authors examined the factor structure of sexual risk behaviors and substance use to determine whether they are best conceptualized as domains underlying a single, higher order, risk-taking propensity. A 2 higher order factor model (sexual risk behavior and substance use) provided the best fit to the data, suggesting that these 2 general risk domains are correlated but independent factors. Sensation seeking had large general direct effects on the 2 risk domains and large indirect effects on the 4 first-order factors and the individual indicators. Negative affect had smaller, yet still significant, effects. Impulsivity and anxiety were unrelated to sexual health risk domains.  相似文献   
5.
6.
7.
Adherence to medications for chronic pediatric diseases decreases overtime. This randomized controlled trial evaluated a clinic-based, nurse-administered educational and behavioral intervention to prevent the anticipated drop in adherence to nonsteroidal medications among newly diagnosed patients with juvenile rheumatoid arthritis. Thirty-four participants completed the study (mean age = 8.44 years, SD = 3.96), including 19 in the experimental group and 15 in the standard-treatment (education) control group. There were significant group and Group x Time effects for adherence (assessed with an electronic monitor over a 13-month period) favoring the experimental group. In contrast, the groups did not differ significantly in disease activity or functional limitations. Factors that may have prevented detection of differences in these health parameters are dicussed.  相似文献   
8.
9.
The purpose of this study was to determine the effects of Type A behavior and family history of hypertension on cardiovascular reactivity to mental stress in a group of employed black women. Measures of heart rate and of systolic blood pressure (SBP) and diastolic blood pressure (DBP) were taken at rest, during a mental arithmetic task, and during the Type A Structured Interview (SI). Results indicated that the Type A behavior pattern was associated with SBP and DBP hyperresponsivity during the SI but not during mental arithmetic. Additionally, certain speech components of the Type A pattern, as well as features of the potential-for-hostility component, were also related to cardiovascular responses during the SI. Family history of hypertension did not influence the cardiovascular parameters either alone or in combination with Type A behavior. The results suggest that many of the cardiovascular response characteristics of the Type A pattern that have been observed in predominantly white samples also hold true for blacks. Replication of these findings with other subgroups of blacks, such as young females and middle-aged males, will help document the generality of these findings within the black population.  相似文献   
10.
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