全文获取类型
收费全文 | 3011篇 |
免费 | 54篇 |
国内免费 | 3篇 |
专业分类
教育 | 2200篇 |
科学研究 | 156篇 |
各国文化 | 55篇 |
体育 | 292篇 |
综合类 | 3篇 |
文化理论 | 31篇 |
信息传播 | 331篇 |
出版年
2023年 | 12篇 |
2022年 | 29篇 |
2021年 | 36篇 |
2020年 | 69篇 |
2019年 | 119篇 |
2018年 | 152篇 |
2017年 | 152篇 |
2016年 | 143篇 |
2015年 | 87篇 |
2014年 | 107篇 |
2013年 | 673篇 |
2012年 | 96篇 |
2011年 | 95篇 |
2010年 | 75篇 |
2009年 | 78篇 |
2008年 | 81篇 |
2007年 | 79篇 |
2006年 | 67篇 |
2005年 | 51篇 |
2004年 | 56篇 |
2003年 | 36篇 |
2002年 | 47篇 |
2001年 | 30篇 |
2000年 | 39篇 |
1999年 | 26篇 |
1998年 | 23篇 |
1997年 | 38篇 |
1996年 | 28篇 |
1995年 | 19篇 |
1994年 | 17篇 |
1993年 | 21篇 |
1992年 | 38篇 |
1991年 | 34篇 |
1990年 | 24篇 |
1989年 | 34篇 |
1988年 | 25篇 |
1987年 | 35篇 |
1986年 | 18篇 |
1985年 | 15篇 |
1984年 | 20篇 |
1983年 | 19篇 |
1982年 | 19篇 |
1981年 | 11篇 |
1980年 | 18篇 |
1979年 | 19篇 |
1978年 | 20篇 |
1977年 | 18篇 |
1976年 | 10篇 |
1973年 | 11篇 |
1971年 | 11篇 |
排序方式: 共有3068条查询结果,搜索用时 15 毫秒
121.
Dave Brown 《Pastoral Care in Education》2000,18(2):28-34
The Family Service Units is a national charity working in some of the most deprived areas of the country. This paper is concerned with one part of its work, The Connections Project. This project aims to develop non-punitive anti-bullying partnerships between young people, schools, adults in the community and other agencies. This article focuses on a particular aspect of this project, the Support Code, which seeks to promote an ethos of proactive mutual support. The development is described and the teachers' reactions are explored. Though this work is currently being undertaken in primary schools, much is applicable to the early years of secondary education too. 相似文献
122.
123.
This study examines the perceived impacts of electronic government or e-government adoption on U.S. cities. This research conducted a survey of Texas and Florida city managers in the fall of 2005 to find out their opinions on the impact of e-government on their city government. The results indicated that e-government is having a positive impact on management, stakeholder involvement, needs and collaboration, and procurement in American cities. There are, however, concerns over spam or unsolicited e-mail and the ability of e-government to reduce the level of staffing. The results of this study imply that, according to city managers' perceptions, e-government adoption in American city governments is positively viewed as having an impact on their organizations and communities. 相似文献
124.
This article describes how the National Science Foundation's support of information research has evolved from NSF's original mission of improving the dissemination of scientific and technical information to its present interest in information robotics and intelligent systems. The pattern of grant support, since a major reorganization of the information science division in 1978, is analyzed in terms of the institutions, the investigators, and the disciplines that have been major grant recipients. 相似文献
125.
126.
127.
128.
Maximal-intensity isometric and dynamic exercise performance after eccentric muscle actions 总被引:3,自引:2,他引:1
A well-documented observation after eccentric exercise is a reduction in maximal voluntary force. However, little is known about the ability to maintain maximal isometric force or generate and maintain dynamic peak power. These aspects of muscle function were studied in seven participants (5 males, 2 females). Knee extensor isometric strength and rate of fatigue were assessed by a sustained 60 s maximal voluntary contraction at 80 degrees and 40 degrees knee flexion, corresponding to an optimal and a shortened muscle length, respectively. Dynamic peak power and rate of fatigue were assessed during a 30 s Wingate cycle test. Plasma creatine kinase was measured from a fingertip blood sample. These variables were measured before, 1 h after and 1, 2, 3 and 7 days after 100 repetitions of the eccentric phase of the barbell squat exercise (10 sets x 10 reps at 80% concentric one-repetition maximum). Eccentric exercise resulted in elevations in creatine kinase activity above baseline (274+/-109 U x l(-1); mean +/- s(x)) after 1 h (506+/-116 U x l(-1), P < 0.05) and 1 day (808+/-117 U x l(-1), P < 0.05). Isometric strength was reduced (P < 0.05) for 7 days (35% at 1 h, 5% at day 7) and the rate of fatigue was lower (P < 0.05) for 3 days at 80 degrees and for 1 day at 40 degrees. Wingate peak power was reduced to a lesser extent (P < 0.05) than isometric strength at 1 h (13%) and, although the time course of recovery was equal, the two variables differed in their pattern of recovery. Eccentrically exercised muscle was characterized by an inability to generate high force and power, but an improved ability to maintain force and power. Such functional outcomes are consistent with the proposition that type II fibres are selectively recruited or damaged during eccentric exercise. 相似文献
129.
Janelle CM 《Journal of sports sciences》2002,20(3):237-251
Despite extensive research devoted to determining the nature of the relationship between stress and performance, there has been little systematic examination of the mechanisms underlying this relationship. Recently, researchers have begun to empirically address the attentional mechanisms underlying theoretical accounts of how stress, anxiety and arousal influence performance. Given the critical role of visual attention to sport expertise, this paper focuses primarily on literature dealing with how visual cues are differentially identified and processed when performers are anxious. Emerging evidence indicates that gaze behaviour tendencies are reliably altered when performers are anxious, leading to inefficient and often ineffective search strategies. Alterations of these visual search indices are addressed in the context of both self-paced and externally paced sports events. Recommendations concerning the utility of perceptual training programmes and how these training programmes might be used as anxiety regulation interventions are discussed. The theoretical implications and directions for future research are also addressed. 相似文献
130.
Three studies are reported of children and youth aged 11-19 years (n = 3478) examining the nature of beliefs about athletic ability. Drawing on related research in academic, moral and stereotyping domains, development of a psychometric instrument assessing athletic ability beliefs is detailed. Support was found for a multidimensional hierarchical structure that is invariant across age and gender. Confirmatory factor analysis revealed a structure comprising two higher-order factors of entity and incremental beliefs underpinned by beliefs that athletic ability is stable and a gift (entity), and is open to improvement and can be developed through learning (incremental). Incremental beliefs, indirectly through a task goal orientation, and entity beliefs directly, predicted self-reported amotivation towards physical education and sport. On the other hand, enjoyment of physical activity in youth was predicted directly by task orientation and incremental beliefs. Predictions concerning the moderating role of perceived competence were not supported. Our findings highlight the importance of ability beliefs and goals in understanding the determinants of physical activity in children and youth. 相似文献