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   84篇
  免费   1篇
教育   37篇
科学研究   39篇
各国文化   2篇
体育   2篇
文化理论   1篇
信息传播   4篇
  2023年   1篇
  2022年   1篇
  2021年   6篇
  2019年   2篇
  2018年   2篇
  2017年   9篇
  2016年   5篇
  2015年   2篇
  2014年   5篇
  2013年   10篇
  2012年   6篇
  2011年   2篇
  2010年   1篇
  2009年   2篇
  2008年   2篇
  2007年   2篇
  2006年   4篇
  2005年   1篇
  2004年   1篇
  2001年   4篇
  1999年   1篇
  1997年   2篇
  1996年   2篇
  1995年   1篇
  1994年   1篇
  1992年   1篇
  1987年   1篇
  1984年   1篇
  1981年   1篇
  1978年   2篇
  1977年   1篇
  1975年   1篇
  1974年   2篇
排序方式: 共有85条查询结果,搜索用时 140 毫秒
81.
82.
Self-directed speech – the audible or partially whispered self-talk that children engage in during their daily activities, was proposed by Vygotsky to have a mediating role in the emerging self-regulatory behaviour of young children. Studies with correlational findings tend to lend support to this hypothesis but fail to delineate the real-time temporal interactions between self-directed speech and self-regulatory behaviour. The authors propose the use of lag sequential analysis and t-pattern analysis as useful and complementary methods for detecting significantly recurring patterns of co-occurrence of self-directed speech and non-verbal behaviour (that is either self-regulatory or shows a failure of self-regulation). Furthermore, it is argued that the analysis of these co-occurrences is required to establish the functions of self-directed speech, and to determine in what ways these might be self-regulatory. Illustrative analyses are presented of data from a study comparing the patterns of self-directed speech use during a planning task in typically developing children and matched peers with Specific Language Impairment. The results obtained from t-pattern analysis reveal qualitative differences between these two groups of children, in their use of self-directed speech, which were not detected by the other two methods. Implications of examining recurring temporal patterns in behaviour for research investigating aspects of development, particularly self-regulation, are discussed.  相似文献   
83.
The supply of oxygen is limited in certain intra abdominal conditions due to direct vascular invasion or inflammatory process, resulting in high lactate levels. Aim of this study was to find the predictive value of lactate levels in the peritoneal fluid (PF) and blood of patients with acute abdomen. The study comprised of fifty patients with acute abdominal conditions, admitted in emergency ward of tertiary care hospital, thirty patients were with surgical abdomen (group I) and twenty patients with non surgical abdomen (group II). Lactate was estimated in PF and blood on Blood Gas Analyzer (NOVA, M-7). The mean lactate levels in PF were significantly higher in group I as compared to group II (14.65 ± 1.195 vs. 5.92 ± 0.97 mmol/L, p < 0.001). There was no significant difference in blood lactate levels in both the groups. When PF and blood lactate levels were compared within groups, we found that PF levels were significantly higher than blood in group I (14.65 ± 1.195 vs. 3.85 ± 0.54 mmol/L, p < 0.001) but not in group II (5.92 ± 0.97 vs. 4.36 ± 0.95 mmol/L). Diagnostic value was obtained using ROC curve. Cut off values obtained for PF lactate, difference and ratio of PF and blood lactate (≥6.4 mmol/L, ≥3.3 and ≥2.1 respectively) are at very high degree of sensitivity and specificity. So it can be useful marker of surgical emergency in patients with acute intra abdominal pathology, especially in clinically ill patients or in whom physical examination is not yielding because of neurologic disorders or unresponsiveness.  相似文献   
84.
85.
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