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   154篇
  免费   3篇
教育   80篇
科学研究   66篇
各国文化   1篇
文化理论   2篇
信息传播   8篇
  2021年   3篇
  2020年   2篇
  2018年   6篇
  2017年   4篇
  2016年   8篇
  2015年   4篇
  2014年   14篇
  2013年   19篇
  2012年   4篇
  2011年   6篇
  2010年   6篇
  2009年   10篇
  2008年   6篇
  2007年   5篇
  2006年   4篇
  2005年   6篇
  2004年   5篇
  2003年   4篇
  2002年   4篇
  2001年   2篇
  2000年   5篇
  1999年   2篇
  1998年   1篇
  1997年   3篇
  1996年   3篇
  1995年   1篇
  1994年   3篇
  1993年   1篇
  1992年   1篇
  1990年   2篇
  1989年   2篇
  1986年   2篇
  1984年   4篇
  1983年   1篇
  1979年   1篇
  1976年   1篇
  1964年   1篇
  1925年   1篇
排序方式: 共有157条查询结果,搜索用时 46 毫秒
21.
22.
This paper reports the findings of three studies of the counseling needs of international students at a medium sized University in the Midwestern region of USA. The studies were conducted over a period of five years (1977–83), and provide an historical perspective on the changes in student needs as well as in the programs designed to respond to these needs.  相似文献   
23.
P. K. Das 《Resonance》1996,1(3):54-65
Various human activities have contributed to an increase in the levels of greenhouse gases. The contribution that these make to global warming requires further investigation, because there are several negative feedback mechanisms which inhibit the warming process.  相似文献   
24.
Any policy reform in education is highly effective when it is planned and implemented ‘holistically’ and yet, it is the most challenging way forward. Many countries in Asia have reformed their English language policies and syllabi in the last two decades due to the increasing value of the language worldwide. Motivated by a ‘communicative approach’ to English language teaching, Bangladesh was one of the countries that launched such a reform in the 1990s. However, this reform has been criticised for imposing the changes on teachers without preparing them sufficiently. More importantly, there is limited evidence as to how much the secondary English language assessment system is aligned with the changes introduced in the curriculum. In order to explore this gap, a medium-scale study was conducted in 38 secondary schools in Bangladesh, following a mixed methods approach. The findings highlighted a ‘mismatch’ between the intended English language learning outcomes and current assessment practices, including the resulting challenges faced by the teachers. This paper argues that language education reform is likely to fail if the assessment system is not aligned with the curriculum.  相似文献   
25.
The motion of a projectile in a constant gravitational field is an age-old problem. If there is no resistive force, the problem is simple. However, with the intoduction of resistive forces, the complexity of the problem increases. Recently, there has been a growing interest in the problem of projectile motion under a resistive force proportional to the square of velocity. The problem for resistive force proportional to vv cannot be solved in closed analytical form. A series solution of the equation leads to divergent series for x (t) and y (t) for reasonable values of the initial speed and angle of projection. However, we demonstrate that by inverting the series for x (t), i.e., expressing t in terms of x, and substituting this in y (t) one can express y in terms of x which is a highly convergent series and one can obtain the path of projectile with a few terms of the series. We further demonstrate that one can obtain the path even with a few terms of the divergent series for x (t) and y (t) by using extrapolation methods.  相似文献   
26.
27.
As audience reception scholars commute from audiences to literacies, both of which share the concept of interpretation, this article sets out to draw together themes around the changing nature of interpretive work, from 6 texts that have reflected recently, in different ways, on interpretation in new media environments. In reviewing a multithreaded conversation across 4 books from literacy studies, media and communications, and user studies, I select 2 essays, written at a crucial moment for reception studies, to provide her a narrative. Speaking from diverse fields, these works suggest a widespread agreement that there is a need to rethink terminologies and concepts from mass-mediated communication in the age of interactive media, not because they no longer prove useful, but because they provide constructive intellectual challenges in thinking through the changing natures of texts and readers, genres and interpretation, literacies, and legibilities, as we await new modes every day, for all of these, but also perhaps, new modes of interpretative engagement.  相似文献   
28.
Students and parents rely on Web-based tools to navigate the college-choice process, yet little research has been done to understand this environment. While this shift has made the process easier to navigate for some, we contend that the move will grow an already large digital divide in the USA. We use Hossler and Gallagher's college-choice framework to examine the substance and function of three college-access Web portals. Our findings suggest these tools are likely to serve many students well in the process, but may exacerbate the digital divide with consequences for low-income students.  相似文献   
29.
Some research within developmental psychology shows a slow period of development in children's expressive drawings during the primary school years. Developmental researchers suggest that ‘educational factors’ could contribute to this dip in development but have not explored these factors. This study explores links between educational policy – in terms of the English National Curriculum – and the development of expression in child art. A Foucauldian style analysis of interviews is presented which investigates how ten primary school teachers working in two Staffordshire schools approach art. A specific concern is to explore how different understandings of art and teaching practices are shaped and managed by the curriculum. This allows links between the demands of the curriculum and the observed dip in expressive drawing development to be investigated.  相似文献   
30.
Alcohol consumption and health outcomes are complex and multidimensional. Ethanol (1.6g / kg body weight/ day) exposure initially affects liver function followed by renal function of 16–18 week-old male albino rats of Wistar strain weighing 200–220 g. Chronic ethanol ingestion increased in thiobarbituric acid reactive substances level and glutathione s-transferase activity; while decreased reduced gluatathione content and activities of catalase, glutathione peroxidase and glutathione reductase in a time dependent manner in the hemolysate. Though superoxide dismutase activity increased initially might be due to adaptive response, but decreased later. Elevation of serum nitrite level and transforming growth factor-b1 activity indicated that long-term ethanol consumption may cause hepatic fibrosis and can elicit pro-angiogenic factors. However, no alteration in vascular endothelial growth factor-C activity indicated that ethanol consumption is not associated with lymphangiogenesis. Therefore, we conclude that long-term ethanol-induced toxicity is linked to an oxidative stress, which may aggravate to fibrosis and elevate pro-angiogenic factors, but not associated with lymphangiogenesis.  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