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   1841篇
  免费   39篇
  国内免费   3篇
教育   1291篇
科学研究   103篇
各国文化   36篇
体育   211篇
综合类   2篇
文化理论   23篇
信息传播   217篇
  2023年   9篇
  2022年   21篇
  2021年   24篇
  2020年   56篇
  2019年   94篇
  2018年   104篇
  2017年   108篇
  2016年   89篇
  2015年   62篇
  2014年   73篇
  2013年   429篇
  2012年   63篇
  2011年   62篇
  2010年   55篇
  2009年   45篇
  2008年   53篇
  2007年   61篇
  2006年   47篇
  2005年   38篇
  2004年   41篇
  2003年   23篇
  2002年   32篇
  2001年   15篇
  2000年   19篇
  1999年   15篇
  1998年   14篇
  1997年   20篇
  1996年   14篇
  1995年   16篇
  1994年   10篇
  1993年   4篇
  1992年   19篇
  1991年   16篇
  1990年   8篇
  1989年   11篇
  1988年   12篇
  1987年   10篇
  1986年   5篇
  1985年   7篇
  1984年   15篇
  1983年   12篇
  1982年   8篇
  1981年   2篇
  1980年   7篇
  1979年   5篇
  1978年   11篇
  1977年   2篇
  1976年   2篇
  1971年   2篇
  1967年   3篇
排序方式: 共有1883条查询结果,搜索用时 15 毫秒
101.
The purpose of this study was to examine whether an innovative, inclusive and integrated 12-week exercise, behaviour change and nutrition advice-based weight management programme could significantly improve the cardiovascular risk factors of overweight and obese men and women over the age of 35. One hundred and ninety-four men and 98 women (mean age?=?52.28?±?9.74 and 51.19?±?9.04) attending a community-based intervention delivered by Notts County Football in the Community over one year, took part in the study. Height (m), weight (kg), fitness (meters covered during a 6?min walk) and waist circumference (cm) were measured at weeks 1 and 12 as part of the intervention. Changes in body weight, waist circumference and fitness for men and women were measured by a 2-way repeated measures ANOVA, with significance set to p?<?0.05.Weight, waist circumference and fitness significantly improved over time in both men (4.96?kg, 6.29?cm, 70.22?m; p?<?0.05) and women (4.26?kg, 5.90?cm, 35.29?m; p?<?0.05). The results demonstrated that the FITC lead weight loss intervention was successful in significantly improving cardiovascular risk factors in both men and women. In particular, the weight loss reductions achieved were comparable to those seen in similar, more costly men-only programmes. This is the first study to demonstrate the efficacy of such an intervention in an inclusive, mixed gender programme and more specifically, in women.  相似文献   
102.
103.
104.
This article will consider the claim that the possession of concepts is innate rather than learned. Innatism about concept learning is explained through consideration of the work of Fodor and Chomsky. First, an account of concept formation is developed. Second the argument against the claim that concepts are learned through the construction of a learning paradox developed by Fodor is considered. It is argued that, despite initial plausibility, the learning paradox is not, in fact, a paradox at all as it rests on eliding the distinction between recognising something and recognising it as a something. The plausibility of eliding this distinction rests, in turn, on begging the question as to whether concept possession is a necessary condition for recognition of objects, events, properties etc. Fodor's positive arguments for innatism, as set out in LOT2 are considered and parallels with his account of stereotype formation and associationist accounts of concept formation are considered. The explanatory persuasiveness of this revised account of concept activation through the generation of stereotypes is weak. The article then examines the distinction between concept possession and concept mastery in greater detail, arguing that innatists have difficulty in accounting for the phenomenon of concept mastery, including within the contexts of formal and professional education.  相似文献   
105.
106.
107.
Biodeterioration of Incralac used for the protection of bronze monuments   总被引:2,自引:0,他引:2  
Outdoor bronze sculptures are highly susceptible to corrosion in many environments and organic coatings are widely used for their protection. The purpose of this study was to determine the susceptibility of the commonly used coating Incralac to biodeterioration by microorganisms. A yeast was isolated from a bronze statue treated with Incralac and its ability to degrade Incralac was determined using growth curves, scanning electron microscopy (SEM), and electrochemical impedance spectroscopy (EIS). The organism grew slowly on Incralac in liquid culture, but SEM images demonstrated its ability to adhere to Incralac coated metal. Additionally, the yeast caused a rapid drop in the low frequency impedance of Incralac coated metal that was not observed under sterile conditions, indicating that the organism accelerated deterioration of the coating. The potential for microbial growth to accelerate deterioration of Incralac should be considered when developing a maintenance strategy for the protection of outdoor metal monuments.  相似文献   
108.
109.
International students enrolled in programs accredited by the Council for Accreditation of Counseling and Related Educational Programs provided acculturative stress and needs data. Acculturative stress was correlated with academic, social, language, and cultural needs. Furthermore, relationships were found between students’ types of needs. Implications are offered to help meet international students’ needs.  相似文献   
110.
This article discusses the impact of the worldwide trend to introduce English as a foreign language (EFL) into primary schools at ever younger ages. This trend has gained momentum in recent years, affecting millions of children in countries throughout Asia. A policy decision of this kind has far-reaching implications but it is often made without consideration of the availability of human and material resources for its implementation. The result is that children may end up learning little or no English, frustrating the intentions of national governments to develop English proficiency amongst the wider population which is, in turn, supposed to contribute to economic development. Drawing on evidence from India and Thailand, this article questions the economic rationale for introducing English into primary schools and argues that decisions on the starting age at which to teach English should, instead, be considered from an educational perspective, taking into account system constraints.  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