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   577篇
  免费   17篇
教育   495篇
科学研究   10篇
各国文化   6篇
体育   6篇
信息传播   77篇
  2023年   3篇
  2022年   2篇
  2021年   9篇
  2020年   9篇
  2019年   11篇
  2018年   21篇
  2017年   27篇
  2016年   30篇
  2015年   25篇
  2014年   19篇
  2013年   133篇
  2012年   21篇
  2011年   20篇
  2010年   11篇
  2009年   11篇
  2008年   10篇
  2007年   14篇
  2006年   13篇
  2005年   12篇
  2004年   12篇
  2003年   9篇
  2002年   13篇
  2001年   21篇
  2000年   7篇
  1999年   8篇
  1998年   7篇
  1997年   9篇
  1996年   11篇
  1995年   8篇
  1994年   8篇
  1993年   9篇
  1992年   7篇
  1991年   6篇
  1990年   3篇
  1989年   2篇
  1988年   7篇
  1987年   2篇
  1986年   4篇
  1985年   4篇
  1984年   4篇
  1983年   4篇
  1982年   2篇
  1980年   5篇
  1979年   2篇
  1978年   4篇
  1977年   3篇
  1976年   2篇
  1973年   2篇
  1925年   1篇
  1852年   1篇
排序方式: 共有594条查询结果,搜索用时 15 毫秒
71.
Oral Cancer is one of the five leading sites of cancer in Indian population. The circulating immune complexes were investigated in 100 serum samples of 60 oral cancer patients having different grades of the disease and 40 patients with precancerous lesions obtained from Nair Hospital Dental collage, Mumbai. The results obtained were compared with those of group of 40 healthy blood donors. Elevated levels of Circulating Immune Complexes were observed in oral cancer patients and patients with oral precancerous lesions. 92% positive samples were observed in well differentiated squamous cell carcinoma whereas 100% positive samples were observed in both moderately and poorly differentiated squamous cell carcinoma. Oral leukoplakia and oral submucous fibrosis showed 15% and 90% positivity respectively. Increased level of Circulating Immune complexes in high grade tumor suggest that Circulating Immune complexes is likely to contribute in evaluating the degree of malignancy, but follow up study is needed to draw any conclusion regarding it's prognostic role  相似文献   
72.
Courses: Rhetorical Criticism, Persuasion, Rhetoric and Architecture, Visual Rhetoric.

Objectives: This single class activity is designed to raise student awareness about the rhetorical nature of architecture and campus planning; to shift student perceptions away from taking their physical surroundings as “a given” and toward seeing them as the product of strategic human choices and decision making; to foster a spirit of curiosity about how buildings can influence our emotions and behavior; and to reduce student uncertainty about unfamiliar course content.  相似文献   

73.
74.
75.
This study addresses the health of young children and how to safely and effectively care for children with diarrhea in the home and in early child care settings. A baseline survey showed the prevalence of oral rehydration solution (ORS) usage at last diarrhea bout to be low. An educational workshop was developed to train parents and child care professionals on how to properly manage young children with diarrhea and reduce the risk of diarrhea spread at home and in early childhood settings. Specific intervention activities are discussed and program activities, including specially designed materials for mixing homemade ORS are described. A comparison of pre- and postintervention data indicates substantial gains in knowledge among both urban and rural populations. Implications of research findings are discussed along with suggestions for future research.  相似文献   
76.
Intake of a 0.15% saccharin solution was suppressed when it was followed by a 32% sucrose solution in brief daily pairings. With equal access durations to the two solutions, intervals of intermediate duration (2 or 3 min) produced a larger contrast than more extreme intervals (1 or 10 min). There was no evidence of inhibition of delay with the 10-min interval (Experiments 1A and 1B). When access times were asymmetrical, longer access time to the first solution reduced contrast, whereas longer access time to the second solution enhanced contrast (Experiment 2). Contrast was greater when the two solutions were presented at consistent and separate spatial locations than when location was changed randomly or when both solutions were presented in sequence at the same location. However, a degree of contrast occurred in all conditions (Experiment 3). Experiment 4, conducted with the solutions in opposite arms of a T-maze, showed that anticipatory approach to the location correlated with the 32% sucrose solution developed prior to lick suppression on the saccharin solution. However, within daily sessions, there was a reliable increase in contrast without correlated changes in anticipatory-approach behavior. Access-time effects were attributed to altered reward values, whereas spatial-separation effects suggest that goal-directed responses contribute to, but do not cause, anticipatory contrast.  相似文献   
77.
BACKGROUND: A variety of definitions of child abuse and neglect exist. However, little is known about norms in the general population as to what constitutes child abuse and neglect or how perceived norms may be related to personal experiences. METHODS: We conducted a random-digit-dialed telephone survey of 504 Washington State adults. Respondents were asked whether they believed each of 34 behaviors, identified in focus groups as possibly physically, sexually or emotionally abusive or neglectful, constituted abuse or neglect. Then, they were asked whether they had experienced 33 of the behaviors. RESULTS: Five of the six behaviors with the highest levels of consensus were for sexual abuse, whereas only one emotionally abusive behavior had a high level of consensus (95% agreement). Consensus that spanking constituted abuse increased with severity. Those respondents who reported experiencing a particular behavior were significantly less likely to believe the behavior abusive for 11 of the 33 behaviors and more likely to believe the behavior abusive for two of the behaviors. Where comparisons were possible, there was a high level of consensus that behaviors identified as abusive in Child Protective Service operational definitions constituted abuse. CONCLUSIONS: Self-reported childhood experiences were associated with perceived norms about child abuse. A better understanding of community norms about child abuse and neglect may be helpful in communicating with the public or allow for better targeting of educational messages through the media, parenting education classes, and so forth.  相似文献   
78.
Before the 19th century the idea of more than three dimensions was exceptional. During the 19th century, however, geometry was revolutionized and new branches were developed. This revolution also created the idea of the possibility of a n-dimensional geometry or space; flatland, i.e. n = 2, was a consequence of this new thinking. In 1884 the clergyman Edwin Abbott and the mathematician Charles Hinton published their still-famous flatland stories. In the 20th century authors also included modern physics as well as computer science in flatland stories.  相似文献   
79.
80.
This paper discusses the findings of a study on how prospective teachers respond to the social difference they encounter in educational discourse and in the public schools. Despite the pessimism of most research on the issue, this study argues that there are always some individuals who desire to implement multicultural social reconstructionist education (MSRE). This paper portrays 3 teacher candidates who range in their positions on 3 signposts indicative of support for MSRE: identification with social justice; support for critical pedagogy and MSRE, and; desire to learn more about the effects of social domination. The paper urges Faculties of Education to become more aware of prospective multicultural educators' positions and to encourage their development.  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