全文获取类型
收费全文 | 1470篇 |
免费 | 27篇 |
专业分类
教育 | 1088篇 |
科学研究 | 89篇 |
各国文化 | 17篇 |
体育 | 166篇 |
综合类 | 1篇 |
文化理论 | 23篇 |
信息传播 | 113篇 |
出版年
2023年 | 7篇 |
2022年 | 26篇 |
2021年 | 36篇 |
2020年 | 59篇 |
2019年 | 85篇 |
2018年 | 88篇 |
2017年 | 82篇 |
2016年 | 67篇 |
2015年 | 48篇 |
2014年 | 56篇 |
2013年 | 316篇 |
2012年 | 53篇 |
2011年 | 59篇 |
2010年 | 33篇 |
2009年 | 43篇 |
2008年 | 32篇 |
2007年 | 39篇 |
2006年 | 24篇 |
2005年 | 22篇 |
2004年 | 20篇 |
2003年 | 18篇 |
2002年 | 15篇 |
2001年 | 9篇 |
2000年 | 10篇 |
1999年 | 15篇 |
1998年 | 5篇 |
1997年 | 9篇 |
1996年 | 10篇 |
1995年 | 16篇 |
1994年 | 7篇 |
1993年 | 17篇 |
1992年 | 15篇 |
1991年 | 9篇 |
1990年 | 7篇 |
1989年 | 6篇 |
1988年 | 9篇 |
1987年 | 7篇 |
1986年 | 4篇 |
1985年 | 6篇 |
1984年 | 8篇 |
1983年 | 8篇 |
1982年 | 9篇 |
1981年 | 8篇 |
1980年 | 15篇 |
1979年 | 6篇 |
1978年 | 5篇 |
1976年 | 6篇 |
1975年 | 8篇 |
1970年 | 3篇 |
1967年 | 3篇 |
排序方式: 共有1497条查询结果,搜索用时 15 毫秒
111.
ABSTRACT This paper examines the social construction of ‘fashionability’ – namely, what is ‘desirable’ and ‘fashionable’ – with reference to the concept ‘cultural mediators’ that foregrounds agency, negotiation and the contested practices of market actors in cultural production. It zeroes in on the cultural mediators’ attitudes and positions in the two markets by drawing on 25 in-depth interviews with industry veterans. It shows that the mediators in South Korea and China increasingly occupy hybrid occupational roles and social positions across industries and sectors yet achieve limited success in countering the status quo of Western fashion through mediation. The analysis contributes to the literature with a categorisation of seven mediation practices that shape the valuation of fashion products (i.e. ‘fashionability’) in two ways. Empirically, this categorisation illuminates how cultural mediators make reference habitually to the broader social and cultural contexts to co-construct cultural-aesthetic objects. Theoretically, it advances a cultural-economic approach to the understanding of cultural mediation and challenges the reductionist viewpoint of actor–network theory through the notion of a matrix of cultural-economic agency. 相似文献
112.
Luiz Octávio Gavião Annibal Parracho Sant’Anna Gilson Brito Alves Lima Pauli Adriano de Almada Garcia 《Journal of sports sciences》2020,38(11-12):1221-1247
ABSTRACT The recruitment of athletes with limited resources is a global problem in professional sports. In US Major League Baseball, the experience of the Oakland Athletics’ general manager in the last decade turned his “Moneyball” model into a synonym of quantitative analysis in the transfer market of baseball players. His strategy focused on hiring players with outstanding technical skills but relatively low market value. This study adapted this model to the framework of a multiple criteria decision aid (MCDA), by selecting undervalued players who have complementary abilities. The novelty here refers to the joint use of four algorithms explored by the composition of probabilistic preferences (CPP) (i.e., ranking, classification, dynamic evaluation and regularity analysis) and their application to soccer player performance evaluation. The new model analysed the recent transfer of a left-back soccer player to Europe. The results indicated 12 opportunities for better investment, among 32 left and right-back players considered. Two years later, the value of the same player was considerably lower. He played only five matches in the 2018–2019 season, without scoring or providing any assists. On the other hand, the players better classified by the CPP-MB model presented higher performances and market values. 相似文献
113.
114.
115.
Victor Pickard 《Journal of Radio & Audio Media》2017,24(2):200-212
The Public Broadcasting Act’s 50th anniversary provides an opportune moment to reassess justifications for creating a noncommercial media system. This commemorative occasion coincides with a particularly precarious moment for public radio and television’s future, adding some urgency to revisiting and reasserting its normative foundations. With this in mind, it is instructive to look back at public broadcasting’s long history to recover some of the original arguments for establishing an alternative to commercial news media. These earlier visions suggest a social democratic ideal for broadcast media, one clearly recognizing that a market-driven system cannot provide for all of democratic society’s communication needs. 相似文献
116.
Jo Ann F. Murphy 《图书馆管理杂志》2017,57(7):742-757
In 2015, student learning programs at the University of Saskatchewan moved organizationally to the university library. While these services resided physically in the library as part of the Learning Commons partnership, this recent change presents the library with a new focus and responsibility for broader student learning support and academic skill development. Highlighting examples of organizational integration of student learning support, this article uses a proximity perspective, suggesting that geographical proximity of services in the learning commons does not go far enough to achieve the deeper collaboration and integration necessary for holistic and integrated learning, and that organizational proximity is needed. 相似文献
117.
Evdokimova Olga L. Alves Carla S. Krsmanović Whiffen Radenka M. Ortega Zaida Tomás Helena Rodrigues João 《Journal of Zhejiang University. Science. B》2021,22(6):450-461
In this study, the fibers of invasive species Agave americana L. and Ricinus communis L. were successfully used for the first time as new sources to produce cytocompatible and highly crystalline cellulose nanofibers. Cellulose nanofibers were obtained by two methods, based on either alkaline or acid hydrolysis. The morphology, chemical composition, and crystallinity of the obtained materials were characterized by scanning electron microscopy(SEM) together with energy-dispersive X-ray spectroscopy(EDX), dynamic light scattering(DLS), X-ray diffraction(XRD), and Fourier transform infrared(FTIR)spectroscopy. The crystallinity indexes(CIs) of the cellulose nanofibers extracted from A. americana and R. communis were very high(94.1% and 92.7%, respectively). Biological studies evaluating the cytotoxic effects of the prepared cellulose nanofibers on human embryonic kidney 293 T(HEK293 T) cells were also performed. The nanofibers obtained using the two different extraction methods were all shown to be cytocompatible in the concentration range assayed(i.e., 0-500 μg/mL). Our results showed that the nanocellulose extracted from A. americana and R. communis fibers has high potential as a new renewable green source of highly crystalline cellulose-based cytocompatible nanomaterials for biomedical applications. 相似文献
118.
Jo Barkham 《British Educational Research Journal》2008,34(6):839-853
This article explores some of the issues around the agenda for workforce reform as it applies to professionals who work in early years classrooms (4–7 year olds), who work alongside class teachers in supporting learning. Their changing roles, responsibilities and professional identities are examined through a small scale case study of four women, two nursery nurses and two teaching assistants, from an infants school in a suburb of Bristol. Their close professional and personal relationships with the six female class teachers with whom thery work are considered. Their stories are analysed for their significance as women whose levels of skill and dedication are undervalued in terms of career structure, salary and job security. Whilst contributing to the debates around the changing roles and the valuable work of teaching assistants, this research endorses the view that these professionals' voices are too often silenced in educational debates and in strategic decision making. 相似文献
119.
The use and development of analogical processes in learning to read in Spanish are presented. In the first experiment, the results show that children of 6 years old show analogical effects in reading pseudowords and that the magnitude of this effect is the same as with 10 years old children. However, it is found that children of 10 years old make many lexicalizations when reading pseudowords (about 50% of the items). In experiment 2 this finding is further analyzed. The results show that 9 years old children make more lexicalizations than adult control subjects do. It is suggested that the development of analogical procedures is a fast process (6 years old children already have done it), but that the precise control of lexical information over perceptual one is a later process. 相似文献
120.
Fletcher Edward C. Smith Chrystal A. S. Hernandez-Gantes Victor M. 《The Urban Review》2021,53(4):681-707
The Urban Review - The purpose of this study was to examine internal and external supports of an information technology themed (whole school) urban magnet high school located in a low-income urban... 相似文献