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   224篇
  免费   3篇
教育   135篇
科学研究   45篇
各国文化   4篇
体育   34篇
文化理论   1篇
信息传播   8篇
  2023年   1篇
  2022年   5篇
  2021年   5篇
  2020年   10篇
  2019年   13篇
  2018年   13篇
  2017年   10篇
  2016年   11篇
  2015年   8篇
  2014年   10篇
  2013年   53篇
  2012年   9篇
  2011年   13篇
  2010年   12篇
  2009年   10篇
  2008年   6篇
  2007年   2篇
  2006年   5篇
  2005年   1篇
  2004年   1篇
  2002年   2篇
  2001年   1篇
  2000年   2篇
  1999年   1篇
  1997年   2篇
  1994年   1篇
  1993年   1篇
  1992年   1篇
  1990年   4篇
  1989年   2篇
  1988年   1篇
  1987年   1篇
  1985年   1篇
  1984年   2篇
  1983年   1篇
  1982年   2篇
  1980年   1篇
  1979年   1篇
  1974年   1篇
  1847年   1篇
排序方式: 共有227条查询结果,搜索用时 15 毫秒
101.
The discussion in this article focuses on how the gap between academic knowledge and regional development can be bridged, creating conditions for change processes between researchers and regional agents. Institutional entrepreneurs can create regional development organisations and research organisations, but in order to fulfil regional needs it is necessary to create processes where researchers and practitioners can connect and create a mutual change process. The analysis shows how new organisations have been used to create conditions for knowledge co-generation processes, a change in the language used and new work methods between researchers from Deusto University and Orkestra and regional actors over a period of 11 years in the Basque Country.  相似文献   
102.
Optimal exercise performance in well trained athletes can be affected by arterial oxygen saturation failure. Noninvasive detection of this phenomenon when performing a routine ergometric test can be a valuable tool for subsequent planning of the athlete's training, recovery, and nutrition. Oximetry has been used to this end. The authors studied 339 athletes performing a similar exercise trial under well controlled environmental conditions. Maximum speed, oxygen uptake, and heart rate levels were simultaneously measured. From the obtained data, six patterns were found: (a) athletes in whom oxygen saturation is constant (≥ 95%) during test execution; (b) athletes displaying a progressive desaturation with incremental exercise intensities; (c) athletes presenting a transient desaturation in the anaerobic threshold region; (d) athletes starting with a mild-to-moderate desaturation at the beginning of the test, but reaching normal saturation values at the end; (e) athletes displaying mild-to-moderate desaturation levels throughout the whole test; and (f) athletes displaying a transient desaturation in the anaerobic threshold region and a new desaturation at the end of the test. In conclusion, it is believed that establishment of desaturation patterns by validated oximetry could be a first approach to evaluate the adaptation of the cardiorespiratory system to exercise intensity, helping to improve results.  相似文献   
103.
ABSTRACT

This study investigates whether differences in learning styles exist between students in online and face-to-face (FTF) sections of political science courses taught by three instructors. Some studies suggest that student preferences regarding online or FTF formats are influenced by their preferred modes of learning. Independent learners, for example, may prefer online courses since they provide individualistic opportunities to study outside of the traditional classroom. This study uses original survey data to assign students one of six learning styles in order to assess whether independent learners are more common in online courses. Our analysis finds no significant differences in independent learners when comparing the two formats. This finding runs counter to studies that argue that independent learners tend to prefer online courses. In fact, the only learning style where we observe a meaningful difference among online and FTF formats is among dependent learners. Contrary to expectation, students enrolled in online versions demonstrated a greater tendency toward dependent modes of learning. Further survey responses suggest that student lifestyle drove course format selection rather than learning style. These findings have important implications for universities that increasingly turn to online courses to address decreasing enrollments and attempt to remedy the high attrition rates associated with those courses.  相似文献   
104.
Buzón     
  相似文献   
105.
106.
The Rural Engineering Department (Technical University of Madrid) ran three competence surveys during the 2006–2007 and 2007–2008 academic years and evaluated: (1) the competences gained by agricultural engineer's degree and agricultural technical engineer's degree students (360 respondents); (2) the competences demanded by agricultural employers (50 farming sector employers); (3) competences required by farming sector professionals and former students (70 professionals). The surveys show significant differences between what competences agricultural employers require of graduates and the competences they acquire during their agricultural engineering degree courses. Recruiters are looking for generic competences such as the ability to coordinate groups and place less importance on knowledge of engineering, biology, applied economics and legislation. Of the computer-related competences, those most in demand by sector professionals were related to the use of Microsoft Office/Excel (used by 79% of professionals). Surveys were used to redesign some subjects of the degrees.  相似文献   
107.
In this paper, we present ViGOR (Video Grouping, Organisation and Recommendation), an exploratory video retrieval system. Exploratory video retrieval tasks are hampered by the lack of semantics associated to video and the overwhelming amount of video items stored in these types of collections (e.g. YouTube, MSN video, etc.). In order to help facilitate these exploratory video search tasks we present a system that utilises two complementary approaches: the first a new search paradigm that allows the semantic grouping of videos and the second the exploitation of past usage history in order to provide video recommendations. We present two types of recommendation techniques adapted to the grouping search paradigm: the first is a global recommendation, which couples the multi-faceted nature of explorative video retrieval tasks with the current user need of information in order to provide recommendations, and second is a local recommendation, which exploits the organisational features of ViGOR in order to provide more localised recommendations based on a specific aspect of the user task. Two user evaluations were carried out in order to (1) validate the new search paradigm provided by ViGOR, characterised by the grouping functionalities and (2) evaluate the usefulness of the proposed recommendation approaches when integrated into ViGOR. The results of our evaluations show (1) that the grouping, organisational and recommendation functionalities can result in an improvement in the users’ search performance without adversely impacting their perceptions of the system and (2) that both recommendation approaches are relevant to the users at different stages of their search, showing the importance of using multi-faceted recommendations for video retrieval systems and also illustrating the many uses of collaborative recommendations for exploratory video search tasks.  相似文献   
108.
The discovery or re-construction of scientific explanations and understanding based on experience is a complex process, for which school learning often uses shortcuts. On the basis of the example of analyzing real seismic measurements, we propose a computer-facilitated collaborative learning scenario which meets many of the requirements for authentic learning, knowledge construction, and collaboration. The implementation of the learning environment called SeisModes is based on a general platform for supporting collaborative modeling activities. SeisModes provides a tool to allow students collaboratively learn about earthquakes and thus reduce the fears they might have concerning them. First formal evaluations showed the approach motivates students.  相似文献   
109.
Abstract

The labour market rewards for a number of required human capital competences are analysed using a sample of young European higher education graduates. Factor analysis is applied to classify competences by jobs into eight orthogonal groups, namely participative, methodological, specialised, organisational, applying rules, physical, generic and socio‐emotional competences. Estimates for the total rewards for competences are obtained through conventional wage regression, whereas estimates of the total rewards are derived in terms of job satisfaction through ordered logit regression. Explanatory variables include personal characteristics, job attributes, occupational titles, fields of study, type of higher education institution and country dummies. Results on wage rewards show that jobs with higher requirements of participative and methodological competences are best paid; conversely, jobs with higher requirements of organisational, applying‐rules and physical competences are worse paid. Results on total rewards suggest that jobs with higher requirements of competences increase graduates’ satisfaction, the only exception being applying‐rules competences.  相似文献   
110.
Abstract

The aim of this study was to analyse the talent identification process of a professional soccer club. A preselection of players (n = 64) aged 9–10 years and a final selection (n = 21) were performed by the technical staff through the observation during training sessions and matches. Also, 34 age-matched players of an open soccer camp (CampP) acted as controls. All participants underwent anthropometric, maturity and performance measurements.

Preselected outfield players (OFs) were older and leaner than CampP (P < 0.05). Besides, they performed better in velocity, agility, endurance and jump tests (P < 0.05). A discriminant analysis showed that velocity and agility were the most important parameters. Finally, selected OFs were older and displayed better agility and endurance compared to the nonselected OFs (P < 0.05). Goalkeepers (GKs) were taller and heavier and had more body fat than OFs; also, they performed worse in the physical tests (P < 0.05). Finally, selected GKs were older and taller, had a higher predicted height and advanced maturity and performed better in the handgrip (dynamometry) and jump tests (P < 0.05).

Thus, the technical staff selected OFs with a particular anthropometry and best performance, particularly agility and endurance, while GKs had a different profile. Moreover, chronological age had an important role in the whole selection process.  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