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   14484篇
  免费   584篇
  国内免费   3篇
  15071篇
  2020年   173篇
  2019年   233篇
  2018年   275篇
  2017年   309篇
  2016年   335篇
  2015年   259篇
  2014年   306篇
  2013年   1443篇
  2012年   529篇
  2011年   540篇
  2010年   371篇
  2009年   343篇
  2008年   465篇
  2007年   444篇
  2006年   422篇
  2005年   366篇
  2004年   376篇
  2003年   356篇
  2002年   414篇
  2001年   312篇
  2000年   295篇
  1999年   281篇
  1998年   194篇
  1997年   169篇
  1996年   160篇
  1995年   166篇
  1994年   143篇
  1993年   153篇
  1992年   219篇
  1991年   211篇
  1990年   198篇
  1989年   178篇
  1988年   155篇
  1987年   164篇
  1986年   166篇
  1985年   185篇
  1984年   192篇
  1983年   186篇
  1982年   163篇
  1981年   196篇
  1980年   159篇
  1979年   226篇
  1978年   178篇
  1977年   169篇
  1976年   164篇
  1975年   177篇
  1974年   208篇
  1973年   159篇
  1972年   139篇
  1969年   138篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
11.
12.
13.
14.
15.
16.
The purpose of this study was to test the hypothesis that social demand could substantially affect reports of self-monitored blood glucose (BG) in adolescents with insulin-dependent diabetes mellitus. Of 34 patients initially enrolled in the study, 10 were excluded because they did not bring any BG records with them to an outpatient clinic appointment. The remaining 24 patients were randomly assigned to either a low or high social demand condition that provided instructions for monitoring of BG for the week following the appointment. The subjects' BG records were quantified to provide frequency of measurement and mean reported BG for the week prior to and after the clinic visit. Five subjects did not return their BG records for the week following the intervention. The analyses were therefore based on the 19 subjects from whom complete records were obtained. The 12 subjects in the low social demand group and 7 subjects in the high social demand group were equivalent with regard to age, duration of diabetes, socioeconomic status, and glycosylated hemoglobin. Frequency of BG measurement was similar in both groups during both weeks. The mean BG value reported in the week prior to intervention was similar for the groups. However, analyses of the post-intervention BGs revealed that subjects in the low-demand group reported significantly higher BGs compared to pre-intervention and to subjects in the high-demand group. These findings suggest that self-monitoring and reporting of BG is a social behavior that is affected by the demand characteristics of the interpersonal patient-health provider relationship. Because optimal treatment planning for individuals with diabetes requires accurate BG records, care must be taken to interpret them in light of the social demand characteristics associated with clinical assessment.  相似文献   
17.
This study investigated the effect of television food commercials on children's self-control within a resistance to temptation paradigm. Commercial type, food stimulus type, and the child's sex provided the three independent variables in a 4 × 4 × 2 factorial design. Behavioral and self-report indices of temptation and control were measured. Children were significantly more tempted to transgress for the low-nutrition food, regardless of the commercial shown. Sex differences in reported degree of temptation were found. However, the television commercials did not affect the children's latency to transgress.  相似文献   
18.
19.
20.
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