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   335篇
  免费   25篇
教育   270篇
科学研究   15篇
各国文化   6篇
体育   21篇
综合类   1篇
文化理论   1篇
信息传播   46篇
  2023年   2篇
  2022年   5篇
  2021年   5篇
  2020年   15篇
  2019年   22篇
  2018年   23篇
  2017年   37篇
  2016年   30篇
  2015年   13篇
  2014年   19篇
  2013年   74篇
  2012年   16篇
  2011年   11篇
  2010年   13篇
  2009年   15篇
  2008年   16篇
  2007年   6篇
  2006年   5篇
  2005年   6篇
  2004年   8篇
  2003年   2篇
  2002年   2篇
  2001年   4篇
  1999年   1篇
  1998年   1篇
  1997年   3篇
  1996年   2篇
  1995年   1篇
  1993年   1篇
  1974年   1篇
  1973年   1篇
排序方式: 共有360条查询结果,搜索用时 15 毫秒
101.
Part of the promise of electronic government (e-government) is its ability to transform the delivery of information services and products from government to users. E-government allows federal agencies to supplement and even supplant private sector roles intermediating between government agencies and users, creating unintended consequences in terms of policy, theory, and practice. The problem is called “channel conflict” in the marketing literature, and the typical response is called distribution channel management (DCM). After reviewing the literatures of e-government, information policy, and DCM, the paper explores differing DCM philosophies of two federal agencies: the Internal Revenue Service and the U.S. Census Bureau. An examination of these two DCM programs provides insights on how federal agencies may be able to manage their various channels for e-government offerings despite tensions in the current legal and policy context. The paper concludes by using DCM literature to help frame options for dealing with these tensions.  相似文献   
102.
103.
104.
The purpose of this study was to examine the relationship between motor proficiency and body mass index (B/MI) in preschool children. Thirty-eight children ages 4-6 years had their BMI calculated and were assessed using the Movement Assessment Battery for Children-2 (MABC-2; Henderson, Sugden, & Barnett, 2007). These data were analyzed in two ways. The correlation between BMI and MABC-2 percentile ranks was calculated. Next, the groups were subdivided based on BMI status (high, M = 85.5; medium, M = 49.8; low, M = 10.8), and compared using t tests to determine if differences existed in MABC-2 percentile ranks. No significant relationship existed between MABC-2 and BMI percentile ranks (r = -.237). However significant differences in MABC-2 percentile ranks existed between high and low (p = .042), and high and medium (p = .043) groups. These results suggest that preschool children classified as overweight or obese may have lower motor proficiency than their normal weight and under weight peers. This study indicates there is a direct relationship between motor proficiency and BMI in the preschool population.  相似文献   
105.
This study examined the incidence, severity, and timing of gastrointestinal (GI) symptoms in finishers and non-finishers of the 161-km Western States Endurance Run. A total of 272 runners (71.0% of starters) completed a post-race questionnaire that assessed the incidence and severity (none = 0, mild = 1, moderate = 2, severe = 3, very severe = 4) of 12 upper (reflux/heartburn, belching, stomach bloating, stomach cramps/pain, nausea, vomiting) and lower (intestinal cramps/pain, flatulence, side ache/stitch, urge to defecate, loose stool/diarrhoea, intestinal bleeding/bloody faeces) GI symptoms experienced during each of four race segments. GI symptoms were experienced by most runners (96.0%). Flatulence (65.9% frequency, mean value 1.0, s = 0.6 severity), belching (61.3% frequency, mean value 1.0, s = 0.6 severity), and nausea (60.3% frequency, mean value 1.0, s = 0.7 severity) were the most common symptoms. Among race finishers, 43.9% reported that GI symptoms affected their race performance, with nausea being the most common symptom (86.0%). Among race non-finishers, 35.6% reported that GI symptoms were a reason for dropping out of the race, with nausea being the most common symptom (90.5%). For both finishers and non-finishers, nausea was greatest during the most challenging and hottest part of the race. GI symptoms are very common during ultramarathon running, and in particular, nausea is the most common complaint for finishers and non-finishers.  相似文献   
106.
The American Psychological Association's Center for Gifted Education Policy (CGEP) reviewed the literature on current talent development models and conducted research on music conservatory students, high IQ students, and science-talented students as sources for a new developmental model called scholarly productivity/artistry (SP/A).The third stage of the SP/A model, where psychosocial dimensions of talent development play the most prominent role, serves as the framework for adolescent summer programs offered by CGEP. The authors argue that the psychosocial dimensions of talent development make gifted children and adolescents a promising population for consulting psychology.  相似文献   
107.
This study examined the neurobiology of maternal sensitivity to children's emotions among mothers involved with Child Protective Services (CPS) and low‐risk comparison mothers (Mage = 31.6 years). CPS‐referred mothers participated in the Attachment and Biobehavioral Catch‐up (ABC) intervention or a control intervention. Mothers' event‐related potentials (ERPs) were measured while they categorized images of children with crying, laughing, and neutral expressions. CPS‐referred ABC mothers (= 19) and low‐risk comparison mothers (= 30) showed a larger enhancement of ERP responses for emotional faces relative to neutral faces than CPS‐referred control mothers (= 21). Additionally, the magnitude of ERP responses to emotional faces was associated with observed maternal sensitivity. Findings add to the understanding of the neurobiology of deficits in parenting and suggest that these deficits are changeable through a parenting intervention.  相似文献   
108.
The issue raised by the authors in this article question why studio art continues to be ignored as a site and source for research in art education. The necessity of the field to be able to participate within the research community in addressing cultural, social, educational and political concerns is acknowledged. It is argued, however, that the exclusive use of methods of inquiry that align with the conventions of social science research has been done at the expense of fully appreciating the capacity of artistic research undertaken in studio contexts. This tendency is especially prevalent in doctoral research in higher education. Three accounts of dissertation research are given that incorporate studio activity as a central agency of inquiry in conceptualising and theorising issues. Each highlights the capacity of art practice to reveal insights that are a consequence of what the researcher did in the studio setting as issues, ideas and interpretive stances emerged, and problems were re‐conceptualised. What is different in these accounts from more mainstream approaches to research is the readiness to accept that constructing new knowledge is a creative and critical process.  相似文献   
109.
110.
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