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   329篇
  免费   6篇
教育   205篇
科学研究   24篇
体育   49篇
文化理论   12篇
信息传播   45篇
  2023年   3篇
  2022年   3篇
  2021年   7篇
  2020年   8篇
  2019年   22篇
  2018年   20篇
  2017年   14篇
  2016年   18篇
  2015年   8篇
  2014年   11篇
  2013年   52篇
  2012年   18篇
  2011年   14篇
  2010年   16篇
  2009年   14篇
  2008年   15篇
  2007年   12篇
  2006年   13篇
  2005年   11篇
  2004年   7篇
  2003年   5篇
  2002年   7篇
  2001年   9篇
  2000年   2篇
  1999年   7篇
  1998年   1篇
  1997年   3篇
  1996年   1篇
  1994年   1篇
  1993年   5篇
  1989年   1篇
  1988年   2篇
  1981年   1篇
  1980年   1篇
  1976年   2篇
  1972年   1篇
排序方式: 共有335条查询结果,搜索用时 15 毫秒
161.
ABSTRACT

Aspects of preventive conservation are central to the long-term preservation of archaeological sites such as Pompeii. Mitigating moisture ingress and its manifold effects on decay mechanisms such as salt degradation are of critical importance when planning durable conservation strategies. A suite of non-destructive techniques was used to diagnose decay mechanisms at an ancient tomb monument at the Porta Nocera Necropolis. Rising damp and salt contamination are shown to be actively contributing to on-going deterioration of the plaster surfaces. An existing shelter is shown to be inadequate in its protection. These initial results are used to inform a more in-depth, long-term survey as well as the design of a holistic preventive strategy.  相似文献   
162.
Time to stop talking about ‘predatory journals’   总被引:1,自引:0,他引:1       下载免费PDF全文

Key points

  • The term ‘predatory journal’ hides a wide range of scholarly publishing misconduct.
  • The term ‘predatory journal’ unhelpfully bundles misconduct with poor quality.
  • The term ‘predatory journal’ blinds us to important possibilities, needs, and questions arising in the developing scholarly landscape.
  • The current scholarly publishing environment cannot rely on such a simplified classification of journals into predatory or not.
  相似文献   
163.
The present study examined the comorbidity between attention-deficit/hyperactivity disorder (ADHD) and reading disability (RD) in male adults. Participants were 120 men, of whom 24 were classified as having ADHD. The basis for the diagnosis was two self-report scales validated by interviews and background data. An extensive battery was used to assess phonological abilities and various aspects of reading skills. No differences were obtained between adults with and without ADHD on measures of either phonological processing skills or word decoding, indicating a low comorbidity with RD. This finding was valid even when different criteria were used to diagnose RD. However, the two groups differed in reading comprehension, with individuals with ADHD performing poorly in tests of reading comprehension. These results are compatible with the view that reading comprehension involves many of the higher cognitive control functions assumed to be impaired in ADHD. However, these attentional control functions are not critical to word recognition, which is determined by a more encapsulated phonological processing module. The pattern of associations between ADHD and RD observed in the present study is explained with reference to the differential attentional demands of the two aspects of reading.  相似文献   
164.
165.
The assumption that today’s German students are able to successfully combine synthesis achievement values and well-being values appears to be overly optimistic when regarded from the perspective of motivational psychology. The results of a qualitative-quantitative interview study with 25 students indicate that achievement and well-being values may come into conflict in everyday life. Incentives for achievement and well-being rarely co-occur in the same action domains. Whereas the school context is dominated by achievement incentives, leisure time is dominated by well-being incentives. Since both achievement and well-being are appreciated by most students, they should be prone to experience frequent everyday action conflicts. The motivational characteristics of postdecisional action conflicts are described on the phenomenal level and their possible impairing effects for learning processes are pointed out. Finally, alternative forms of value synthesis, which might be realized more successfully, are discussed.  相似文献   
166.
In search of determinants of decision- making, cognitive aspects for years have been predominating in scientific discussions for years, whereas recently emotional aspects have increasingly became the focus of scientific consideration. In view of the frequently occurring, and not only philosophically relevant, discussion about the free will and the architecture of our spirit, the question arises whether these approaches reach far enough. In the decision-making process different, more deeply lying and unconsciously working structures appear to be decisive, whose modes of function we can neither comprehend introspectively nor can be easily approached on a scientific basis. As a consequence, to knowledge of these parameters is of great importance for any discussion about possible influences on determinants of decision -making, which on the other hand are generally considered to be the fundamental principles in the promotion of healthy sports.  相似文献   
167.
There currently exists a dearth of research on the transmission and assimilation of myths. To overcome this limitation, we developed a novel scale that measures belief in science-related myths. A total of 363 participants completed this new scale along with measures of personality (the Big Five factors), anti-scientific attitudes, and New Age orientation. Exploratory factor analysis showed that the items of the belief in myths scale could be reduced to two factors concerning human-related and non-human-related myths. Both factors were internally reliable, were moderately inter-correlated, and were not rated significantly differently by women and men (although human-related myths were rated as significantly more believable than non-human-related myths). Further analysis showed that only human myths were significantly predicted by anti-scientific attitudes and the Big Five factor of Extraversion. These results are discussed in relation to the promotion of scientific literacy.  相似文献   
168.
Social media hype has created a lot of speculation among educators on how these media can be used to support learning, but there have been rather few studies so far. Our explorative interview study contributes by critically exploring how campus students perceive using social media to support their studies and the perceived benefits and limitations compared with other means. Although the vast majority of the respondents use social media frequently, a “digital dissonance” can be noted, because few of them feel that they use such media to support their studies. The interviewees mainly put forth e-mail and instant messaging, which are used among students to ask questions, coordinate group work and share files. Some of them mention using Wikipedia and YouTube for retrieving content and Facebook to initiate contact with course peers. Students regard social media as one of three key means of the educational experience, alongside face-to-face meetings and using the learning management systems, and are mainly used for brief questions and answers, and to coordinate group work. In conclusion, we argue that teaching strategy plays a key role in supporting students in moving from using social media to support coordination and information retrieval to also using such media for collaborative learning, when appropriate.  相似文献   
169.
Validation of portable 2D force binding systems for cross-country skiing   总被引:2,自引:2,他引:0  
The aim of the present study was to design, construct and scientifically validate a two-dimensional force measurement binding system for cross-country skiing. The system consists of two force measurement bindings. One binding was designed for analysing classic skiing (vertical and anterior–posterior [along the ski] force components) and the other one for skate (freestyle) skiing (vertical and medio-lateral [transverse to the ski] force components). Validation was accomplished using a three-step process: (1) accuracy tests for the sensors in two temperatures, (2) sport-specific imitation jump test on standard force plates in a laboratory and (3) comparing the system against force measurement reference systems that are currently used when skiing on snow. During sport-specific imitation jumps, differences in peak forces and impulses between the classic binding and the reference systems ranged from 8.0 to 19.9 % and were two to three times greater compared to differences between the skate binding and the reference systems (range ?5.9 to 5.5 %). However, high similarity coefficients were observed with both bindings (classic binding 0.990–0.996, skate binding 0.996–0.999) compared to the reference systems. Based on these results, the skate binding was shown to be fully valid for use in field measurements of skate skiing, whereas some improvements have to be performed in the construction and sensor placements for the classic binding (vertical as well as anterior–posterior force component).  相似文献   
170.
This paper deals with the topic of professional development programmes’ impact. Concepts and ideas of action research, constructivism, and systems theory are used as a theoretical framework and are combined to describe and analyse an exemplary professional development programme in Austria. Empirical findings from both quantitative and qualitative studies regarding the programme’s impact are provided and discussed. Moreover, implications for future programmes’ planning and implementation are provided.  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