全文获取类型
收费全文 | 9857篇 |
免费 | 154篇 |
国内免费 | 7篇 |
专业分类
教育 | 7170篇 |
科学研究 | 627篇 |
各国文化 | 172篇 |
体育 | 848篇 |
综合类 | 3篇 |
文化理论 | 135篇 |
信息传播 | 1063篇 |
出版年
2022年 | 60篇 |
2021年 | 88篇 |
2020年 | 177篇 |
2019年 | 275篇 |
2018年 | 358篇 |
2017年 | 371篇 |
2016年 | 336篇 |
2015年 | 255篇 |
2014年 | 283篇 |
2013年 | 2145篇 |
2012年 | 261篇 |
2011年 | 259篇 |
2010年 | 228篇 |
2009年 | 212篇 |
2008年 | 308篇 |
2007年 | 231篇 |
2006年 | 244篇 |
2005年 | 209篇 |
2004年 | 179篇 |
2003年 | 207篇 |
2002年 | 178篇 |
2001年 | 154篇 |
2000年 | 148篇 |
1999年 | 133篇 |
1998年 | 118篇 |
1997年 | 123篇 |
1996年 | 122篇 |
1995年 | 128篇 |
1994年 | 134篇 |
1993年 | 106篇 |
1992年 | 123篇 |
1991年 | 118篇 |
1990年 | 112篇 |
1989年 | 105篇 |
1988年 | 97篇 |
1987年 | 80篇 |
1986年 | 78篇 |
1985年 | 84篇 |
1984年 | 76篇 |
1983年 | 87篇 |
1982年 | 79篇 |
1981年 | 90篇 |
1980年 | 89篇 |
1979年 | 89篇 |
1978年 | 61篇 |
1977年 | 51篇 |
1976年 | 54篇 |
1975年 | 45篇 |
1974年 | 48篇 |
1971年 | 38篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
71.
Robbie S. Wilson Rob S. James Gwendolyn David Ecki Hermann Oliver J. Morgan Amanda C. Niehaus 《Journal of sports sciences》2016,34(21):2074-2086
The development of a comprehensive protocol for quantifying soccer-specific skill could markedly improve both talent identification and development. Surprisingly, most protocols for talent identification in soccer still focus on the more generic athletic attributes of team sports, such as speed, strength, agility and endurance, rather than on a player’s technical skills. We used a multivariate methodology borrowed from evolutionary analyses of adaptation to develop our quantitative assessment of individual soccer-specific skill. We tested the performance of 40 individual academy-level players in eight different soccer-specific tasks across an age range of 13–18 years old. We first quantified the repeatability of each skill performance then explored the effects of age on soccer-specific skill, correlations between each of the pairs of skill tasks independent of age, and finally developed an individual metric of overall skill performance that could be easily used by coaches. All of our measured traits were highly repeatable when assessed over a short period and we found that an individual’s overall skill – as well as their performance in their best task – was strongly positively correlated with age. Most importantly, our study established a simple but comprehensive methodology for assessing skill performance in soccer players, thus allowing coaches to rapidly assess the relative abilities of their players, identify promising youths and work on eliminating skill deficits in players. 相似文献
72.
73.
This study explored the influence social capital had over parental sports volunteers who are considered to be of paramount importance in the delivery of UK sports initiatives. A review of the relevant literature identifies and discusses the complexities within the debate to define social capital while human and cultural capital emerge as an essential element in the production of parental volunteers’ ability to access opportunities through a process of bonding or bridging social networks. This study used a grounded research focused on the use of semi-structured interviews and research diaries with (n = 8) study participants. The results from this study, which were analysed through a Bourdieuan perspective, suggested the process that recruits parental volunteers is exclusive; furthermore, the results show the insidious presences of the dark side of social capital, which affected the respondents by reinforcing exclusive ties and identities, which was found to exclude outsiders while reproducing a dominant social hierarchy. The paper concludes by considering the implications of the study for future practical and academic applications of social capital production within sports volunteerism. 相似文献
74.
75.
David George 《Cambridge Journal of Education》1990,20(2):175-182
76.
77.
78.
Tiffany Jones 《Sex education》2019,19(4):455-471
ABSTRACTSouth Africa stands out in the African region for its protection of lesbian, gay, bisexual, transgender and intersex (LGBTI) rights. This article examines South Africa’s contributions to local policy for LGBTIs and to work on LGBTI issues in education policy and education rights progress internationally. It also considers broader South African contributions to the theorisation of gender and sexuality. Data derive from an analysis of 102 interviews with key informants participating in high-level global networking for LGBTI students’ rights, and documentary analysis showing how stakeholders characterise South African contributions to transnational LGBTI education work. Informants identified how such contributions have a strong human rights emphasis, furthering post-colonial resistance to simplistic gender and sexuality classification schema imposed via imperial colonising dynamics. While South African work in this area has also promoted and facilitated research, it has at times been limited by ambivalence from its leadership. The nation’s early adoption of constitutional rights, relationship rights and educational equity provisions as acts of decolonisation contribute valuable African LGBTI work examples to the region. Their success encourages further funding for South-South transnational LGBTI education work. 相似文献
79.
Randomised controlled trials (RCTs) are often seen as the 'gold standard' of evaluative research. However, whilst randomisation will ensure comparable groups, trials are still vulnerable to a range of biases that can undermine their internal validity. In this paper we describe a number of common threats to the internal validity of RCTs and methods of countering them. We highlight a number of examples from randomised trials in education and health care where problems of execution and analysis of the RCT has undermined their internal validity. However, awareness of these potential biases can lead to careful planning to avoid or reduce their occurrence. If good quality randomised trials are to inform policy and practice in education then rigorous trials need to be designed that are the least susceptible to threats to their validity. 相似文献
80.
Three rats received unmodifiable tailshock at random intervals in a shuttlebox. In a continuous-choice situation, Ss could choose between an auditory signal immediately preceding or immediately following the tailshock. Over repeated daily 3-h sessions, each S acquired a spatial discrimination indicating a strong preference for the signal preceding tailshock. This preference continued undiminished through two successive reversals of the position associated with signaled shock. This demonstration precludes explanations of the preference-for-signaled-shock phenomenon based upon primary reinforcement value or acquired value of the signal, position preferences, and overt modification of the aversiveness of the reinforcer through such means as postural adjustments. An explanation of recent failures to obtain the preference-for-signaled-shock effect is offered. 相似文献