全文获取类型
收费全文 | 960篇 |
免费 | 21篇 |
专业分类
教育 | 664篇 |
科学研究 | 88篇 |
各国文化 | 12篇 |
体育 | 121篇 |
文化理论 | 22篇 |
信息传播 | 74篇 |
出版年
2023年 | 7篇 |
2022年 | 11篇 |
2021年 | 13篇 |
2020年 | 23篇 |
2019年 | 37篇 |
2018年 | 41篇 |
2017年 | 55篇 |
2016年 | 53篇 |
2015年 | 34篇 |
2014年 | 40篇 |
2013年 | 190篇 |
2012年 | 33篇 |
2011年 | 34篇 |
2010年 | 40篇 |
2009年 | 29篇 |
2008年 | 46篇 |
2007年 | 18篇 |
2006年 | 23篇 |
2005年 | 22篇 |
2004年 | 24篇 |
2003年 | 16篇 |
2002年 | 21篇 |
2001年 | 11篇 |
2000年 | 10篇 |
1999年 | 4篇 |
1998年 | 4篇 |
1997年 | 7篇 |
1996年 | 8篇 |
1995年 | 6篇 |
1994年 | 7篇 |
1993年 | 8篇 |
1992年 | 8篇 |
1991年 | 8篇 |
1989年 | 10篇 |
1988年 | 6篇 |
1987年 | 3篇 |
1986年 | 4篇 |
1985年 | 5篇 |
1984年 | 4篇 |
1983年 | 3篇 |
1982年 | 5篇 |
1981年 | 3篇 |
1979年 | 5篇 |
1978年 | 5篇 |
1974年 | 3篇 |
1973年 | 3篇 |
1969年 | 3篇 |
1966年 | 2篇 |
1957年 | 3篇 |
1944年 | 3篇 |
排序方式: 共有981条查询结果,搜索用时 31 毫秒
121.
122.
Michael Crossley Cresantia Frances Koya Vaka’uta Rosiana Lagi Simon McGrath Konai Helu Thaman Ledua Waqailiti 《Compare》2017,47(6):872-890
AbstractThis article reports on the findings of original field research carried out in the small island developing state of Fiji, in the South Pacific. A North-South research partnership was built upon previous collaboration between team members and, in so doing, pioneered the blending of Pacific and Western research approaches sensitive to a postcolonial positioning. The study interrogates practitioner perspectives on: the nature and quality of teachers and teaching in Fiji; the challenges of teachers’ work and lives; priorities for successful qualitative reform; and theoretical implications for the processes of education policy transfer and qualitative improvement. The analysis draws upon work on the politics of aid and international development, revealing tensions between existing learner-centred policy frameworks and emergent neoliberal and performativity oriented initiatives influenced by international surveys of student achievement, related league tables and the experience of the regional reference societies of Australia, New Zealand and India. 相似文献
123.
This study examined the links among adolescents' representations of their relationships with parents, friends, and romantic partners. Sixty-eight adolescents were interviewed three times to assess their working models for each of these types of relationships. Working models of friendships were related to working models of relationships with parents and romantic partners. Working models of relationships with parents and romantic partners were inconsistently related. A similar pattern of results was obtained for self-report measures of relational styles for the three types of relationships. Perceived experiences were also related. Specifically, support in relationships with parents tended to be related to support in romantic relationships and friendships, but the latter two were unrelated. On the other hand, self and other controlling behaviors in friendships were related to corresponding behaviors in romantic relationships. Negative interactions in the three types of relationships also tended to be related. Taken together, the findings indicate that the representations of the three types of relationships are distinct, yet related. Discussion focuses on the nature of the links among the three. 相似文献
124.
Reading relies on a left‐lateralized network of brain areas that include the pre‐lexical processing regions of the ventral stream. Specifically, a region in the left lateral occipitotemporal sulcus (OTS) is consistently more activated for visual presentations of words than for other categories of stimuli. This region undergoes dramatic changes at the functional and structural levels when children learn to read, but little is known about the effects of early cerebral constraints on reading skills. Using anatomical magnetic resonance imaging, we investigated whether the sulcal pattern of the lateral OTS—a stable brain feature—was associated with oral reading skills. The sulcal pattern of the left but not the right lateral OTS was associated with the number of words correctly read in 3 min. This study is the first to evidence that reading is affected by early cerebral constraints, such as the sulcal morphology of the left lateral OTS. 相似文献
125.
126.
Mahar Ali Nawaz Munir Muhammad Elawad Sami Gowen Simon Richard Hague Nigel Graham Meckenzi 《浙江大学学报(A卷英文版)》2004,5(10):1183-1190
Cells and cell-free solutions of the culture filtrate of the bacterial symbiont, Xenorhabdus nematophila taken from the entomopathogenic nematode Steinernema carpocapsae in aqueous broth suspensions were lethal to larvae of the diamondback moth Plutella xylostella. Their application on leaves of Chinese cabbage indicated that the cells can penetrate into the insects in the absence of
the nematode vector. Cell-free solutions containing metabolites were also proved as effective as bacterial cells suspension.
The application of aqueous suspensions of cells of X. nematophila or solutions containing its toxic metabolites to the leaves represents a possible new strategy for controlling insect pests
on foliage. 相似文献
128.
Knee injuries such as anterior cruciate ligament lesions and patellar tendonitis are very frequent in volleyball, and are often attributed to micro traumas that occur during the landing phase of airborne actions. The aim of the present study was to compare different jumping activities during official men's and women's volleyball games. Twelve top-level matches from the Italian men's and women's professional leagues were analysed. The jumps performed during the games were classified according to the landing technique used by the player (left or right foot or both feet together), court position, and ball trajectory. Chi-square analyses were performed to detect differences in landing techniques between the sexes, court positions, and trajectories when serving, attacking, blocking, and setting. Significant differences (P?0.05) were found between the sexes for block, set, and spike but not for the jump serve. The frequency of landings on one foot was related to court position and the trajectory of the sets: when spiking faster sets, the players were more likely to use a one-footed landing. The present results should help coaches and physiotherapists to devise appropriate training and prevention programmes, and reveal the need for further detailed biomechanical investigations of the relationships between landings and knee injuries. 相似文献
129.
130.
Simon Gächter 《Research Policy》2010,39(7):893-906
Incentives to innovate are a central element of innovation theory. In the private-investment model, innovators privately fund innovation and then use intellectual property protection mechanisms to appropriate returns from these investments. In the collective-action model, public subsidy funds public goods innovations, characterized by non-rivalry and non-exclusivity in using these innovations. Recently, these models have been compounded in the private-collective innovation model where innovators privately fund public goods innovations. Private-collective innovation is illustrated in the case of open source software development. This paper contributes to the work on this model by investigating incentives that motivate innovators to share their knowledge in an initial situation, before there is a community to support the innovation process. We use game theory to predict knowledge sharing behavior in private-collective innovation, and test these predictions in a laboratory setting. The results show that knowledge sharing is a coordination game with multiple equilibria, reflecting the fragility of knowledge sharing between innovators with conflicting interests. The experimental results demonstrate important asymmetries in the fragility of knowledge sharing and, in some situations, more knowledge sharing than theoretically predicted. A behavioral analysis suggests that knowledge sharing in private-collective innovation is not only affected by material incentives, but also by social preferences such as fairness. The results offer general insights into the relationship between incentives and knowledge sharing and contribute to a better understanding of the initiation of private-collective innovation. 相似文献