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   921篇
  免费   26篇
  国内免费   1篇
教育   710篇
科学研究   41篇
各国文化   23篇
体育   73篇
综合类   1篇
文化理论   9篇
信息传播   91篇
  2022年   5篇
  2021年   10篇
  2020年   18篇
  2019年   26篇
  2018年   20篇
  2017年   30篇
  2016年   27篇
  2015年   21篇
  2014年   32篇
  2013年   228篇
  2012年   22篇
  2011年   21篇
  2010年   15篇
  2009年   22篇
  2008年   21篇
  2007年   26篇
  2006年   20篇
  2005年   23篇
  2004年   22篇
  2003年   18篇
  2002年   25篇
  2001年   9篇
  2000年   4篇
  1999年   13篇
  1998年   6篇
  1997年   9篇
  1996年   9篇
  1995年   13篇
  1994年   6篇
  1993年   11篇
  1992年   9篇
  1991年   11篇
  1990年   12篇
  1989年   17篇
  1988年   17篇
  1987年   8篇
  1986年   7篇
  1985年   10篇
  1984年   12篇
  1983年   7篇
  1982年   12篇
  1981年   10篇
  1980年   12篇
  1979年   6篇
  1978年   12篇
  1977年   9篇
  1976年   9篇
  1975年   7篇
  1974年   8篇
  1969年   3篇
排序方式: 共有948条查询结果,搜索用时 15 毫秒
61.
This paper expresses serious reservations regarding the increasingly popular Bourdieu‐inspired notions of ‘institutional habitus’ and ‘family habitus’ in education research. Although sympathetic to the overall theoretical approach and persuaded of the veracity and importance of the empirical findings they are used to illuminate, it argues that, from a Bourdieusian point of view, they actually present several difficulties that threaten not only to overstretch and reduce the explanatory power of the French thinker’s concepts but to stifle analysis of the kinds of struggles and complexities that both he and, somewhat contradictorily, the researchers in question spotlight. Bourdieu had his own ways of making sense of the themes raised, and although there is indeed a need to push him further than he went, to say what he did not and to emphasise what he would not, this has to be guided by consistent logic and not simply pragmatic empiricism.  相似文献   
62.
The purpose of this study was to evaluate the effects of whole-body vibration (WBV) on the muscle recruitment of selected upper and lower body muscles during the baseball swing. Participants were recreationally trained males (n = 16, 22 +/- 2 years, 181.4 +/- 7.4 cm, 84.7 +/- 9.0 kg), with previous baseball experience. Subjects participated in three randomized sessions on separate days, consisting of three sets of five swings offa hitting tee. Exercises (upper and lower body dynamic and static movements) with or without WBVexposure were performed between swing sets. During each swing, the gastrocnemius, biceps femoris, gluteus maximus, pectoralis major, latissimus dorsi, and triceps brachii were evaluated for electromyographic (EMG) activity. EMG values were normalized to EMG measured during maximal voluntary isometric contraction. Statistical analysis revealed no significant differences in EMG activity across the three treatments. In addition, the results displayed a specific muscle recruitment order during the swing, starting with the lower body followed by the upper body muscles. This study was the first to report the recruitment order during the baseball swing. Although acute exposure to WBV did not significantly alter the muscle recruitment, these results may prove useful for practitioners looking to enhance baseball swing performance.  相似文献   
63.
Purpose: The purposes of this clinical perspective paper are (1) to expand physical therapists’ awareness to the topic of air quality as a health priority when providing professional services; and (2) to provide templates for screening the indoor clinical environments and patient profiles to avert respiratory exacerbations, especially in persons with asthma. Summary of Key Points: The location where a physical therapist practices determines the air quality indices to which a person is exposed. Poor indoor air quality can expose a person to even greater compromise of respiration (ie, Sick Building Syndrome) than outdoor air quality secondary to an array of factors like building materials, the ventilation exchange rate of an enclosed space, chemicals used in cleaning, and humidity. Statement of Conclusions: Extrinsic (ie, environmental) and intrinsic (eg, pre-disposition to airway hypersensitivity) factors must be accounted for by physical therapists to safeguard their patients and themselves from experiencing respiratory compromise and/or distress as a result of a treatment session or their place of employment. Recommendations: Efforts to screen indoor environments for potential triggers and patient risk profiles for abnormal airway reactivity should routinely be undertaken. Individualized Action Plans should be prospectively prepared and readied for implementation when warranted.Key Words: asthma, Sick Building Syndrome, indoor air quality, respiratory impairment  相似文献   
64.
We explore the local negotiation of regulatory practice at the UK Stem Cell Bank, the first Bank of its type in the world. Basing our empirical work on a detailed analysis of one aspect of the Bank's regulatory commitment--the completion of the Cell Line Information form--we make visible the necessary judgements and labour involved in interpreting and operationalizing externally imposed regulation. The discussion opens by detailing the problems encountered when the Bank completes the form: reconciling a bureaucratic system of accountability with craft-like laboratory skills involving multiple kinds of tacit knowledge. We follow this by explicating the emergent 'bridging strategies' pursued by the Bank to address these issues, highlighting their reliance upon the formation of trust and social networks. The closing discussion emphasizes the contingent assembly of regulatory practices that emerge in the local setting.  相似文献   
65.
The increasingly diverse set of learners in colleges and universities poses considerable challenges for educators. Dorothy A. Osterholt and Sophie Lampard Dennis explain the four domains of learning they have identified and suggest ways to apply them to help students overcome a variety of obstacles to learning.  相似文献   
66.
This paper describes a study of observed relationships between the design of a preservice elementary mathematics methods course with accompanying field practicum and changes in the extent to which participating prospective teachers identified themselves with the mathematics reform movement after becoming practicing teachers. The curriculum of the course with its embedded field practicum experiences was designed to support prospective teachers in interweaving methods coursework and pedagogical instruction with classroom practice. University and elementary school structures were interwoven by conducting weekly mathematics methods course sessions at a school site followed immediately by related practicum experiences in classrooms in the school. The interweaving of conceptualizations about mathematics teaching and learning was facilitated as the methods instructor provided professional development for classroom teachers simultaneously with the methods course, encouraging the teachers to create “reform-friendly” classroom environments. Survey data from 68 prospective teachers involved in the project were analyzed to identify and describe relationships between course/practicum experiences and the degree to which they as practicing teachers, 1–3 years following the course/practicum, identified with a reform mathematics perspective, as well as to examine factors influencing those relationships.  相似文献   
67.
68.
69.
70.
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