全文获取类型
收费全文 | 12770篇 |
免费 | 19篇 |
国内免费 | 3篇 |
专业分类
教育 | 9946篇 |
科学研究 | 1227篇 |
各国文化 | 22篇 |
体育 | 378篇 |
文化理论 | 389篇 |
信息传播 | 830篇 |
出版年
2023年 | 6篇 |
2022年 | 4篇 |
2021年 | 15篇 |
2020年 | 23篇 |
2019年 | 40篇 |
2018年 | 2223篇 |
2017年 | 2123篇 |
2016年 | 1609篇 |
2015年 | 140篇 |
2014年 | 153篇 |
2013年 | 364篇 |
2012年 | 248篇 |
2011年 | 726篇 |
2010年 | 862篇 |
2009年 | 462篇 |
2008年 | 677篇 |
2007年 | 1190篇 |
2006年 | 104篇 |
2005年 | 424篇 |
2004年 | 456篇 |
2003年 | 375篇 |
2002年 | 160篇 |
2001年 | 23篇 |
2000年 | 39篇 |
1999年 | 22篇 |
1998年 | 16篇 |
1997年 | 36篇 |
1996年 | 19篇 |
1995年 | 16篇 |
1994年 | 24篇 |
1993年 | 30篇 |
1992年 | 16篇 |
1991年 | 19篇 |
1990年 | 19篇 |
1989年 | 13篇 |
1988年 | 5篇 |
1987年 | 8篇 |
1986年 | 14篇 |
1985年 | 11篇 |
1984年 | 7篇 |
1983年 | 8篇 |
1982年 | 5篇 |
1981年 | 3篇 |
1980年 | 4篇 |
1979年 | 5篇 |
1978年 | 7篇 |
1977年 | 7篇 |
1976年 | 3篇 |
1975年 | 7篇 |
1974年 | 8篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Andrew Weinstein 《Publishing Research Quarterly》2010,26(1):11-15
Forecasts indicate a growing demand for digital content around the world. Converting to digital content can open up countless new revenue possibilities. Adding alternate channels may be worth consideration, but what are the options and what does it take to utilize them effectively? This article explores the opportunities that potentially exist for publishers with content that may be digitized and distributed to global markets. A brief review of the current marketplace is also incorporated, including current players and trends. Finally, an analysis of some of the potential issues, challenges and pitfalls is presented in context of delving into a new international digital content distribution strategy. 相似文献
992.
Bing Bai Jason Weston David Grangier Ronan Collobert Kunihiko Sadamasa Yanjun Qi Olivier Chapelle Kilian Weinberger 《Information Retrieval》2010,13(3):291-314
In this article we present Supervised Semantic Indexing which defines a class of nonlinear (quadratic) models that are discriminatively
trained to directly map from the word content in a query-document or document-document pair to a ranking score. Like Latent
Semantic Indexing (LSI), our models take account of correlations between words (synonymy, polysemy). However, unlike LSI our
models are trained from a supervised signal directly on the ranking task of interest, which we argue is the reason for our
superior results. As the query and target texts are modeled separately, our approach is easily generalized to different retrieval
tasks, such as cross-language retrieval or online advertising placement. Dealing with models on all pairs of words features
is computationally challenging. We propose several improvements to our basic model for addressing this issue, including low
rank (but diagonal preserving) representations, correlated feature hashing and sparsification. We provide an empirical study
of all these methods on retrieval tasks based on Wikipedia documents as well as an Internet advertisement task. We obtain
state-of-the-art performance while providing realistically scalable methods. 相似文献
993.
Urquhart C Thomas R Ovens J Lucking W Villa J 《Health information and libraries journal》2010,27(4):277-285
Background: Various methods of impact assessment for health library services exist, including a toolkit developed for the UK. The Knowledge, Resource and Information service (KRIS) for health promotion, health service commissioning and public health (Bristol area, UK) commissioned an independent team at Aberystwyth University to provide an impact assessment and evaluation of their services and to provide evidence for future planning. Objective: The review aimed to provide an action plan for KRIS through assessing the impact of the current service, extent of satisfaction with existing services and views on desirable improvements. Methods: Existing impact toolkit guidance was used, with an adapted impact questionnaire, which was distributed by the KRIS staff to 244 users (response rate 62.3%) in early 2009. The independent team analysed the questionnaire data and presented the findings. Results: Users valued the service (93% considered that relevant information was obtained). The most frequent impacts on work were advice to patients, clients or carers, and advice to colleagues. Literature searching and current awareness services saved staff time. Many users were seeking health promotion materials. Conclusion: The adapted questionnaire worked well in demonstrating the service impacts achieved by KRIS, as well as indicating desirable improvements in service delivery. 相似文献
994.
Elaine Keane Fiona Jane Aldridge Trevor Clark 《International Journal of Inclusive Education》2013,17(10):1001-1017
Students with autism spectrum disorders (ASDs) are increasingly being educated within mainstream schools. While there is often an assumption that students with ASD who are academically capable will succeed in an inclusive educational placement, previous research has indicated that this is not always the case. Indeed, it seems that students with ASDs are often not equipped to cope with the social and communication demands of a mainstream classroom. Autism Spectrum Australia's (Aspect) satellite class programme aims to address this gap by blending specialised intervention with strategies to prepare students and receiving schools for transition to more inclusive educational placements. A long-term follow-up study comprising a parent survey of satellite class graduates and four detailed case studies was undertaken to determine whether these classes led to successful placement of students with ASD in more inclusive educational settings. Results indicated that a majority of graduates remained placed in more inclusive educational settings. Overall, parents were satisfied with the programme. Attendance at a satellite class was just one of a number of factors associated with positive outcomes in late adolescence. These findings are discussed in terms of their implications for teachers and school staff planning for and supporting students with ASDs in their transition to inclusive educational settings. 相似文献
995.
Criteria for placement of pupils into bands and the subsequent effect of banding on educational and post‐educational careers were investigated in a longitudinal study of two cohorts of comprehensive school pupils. The abiding influence of social class and measured ability in early assignment of pupils to bands was observed, and a disjunction demonstrated between a banding system with the potential for flexibility and the reality of the situation where it was marked by ossification and early tracking of pupils to differential educational destinations. The notion of the school as an enduring conservative force is investigated, the banding system being both an outcome and a determinant of this conservatism. The data is used to raise methodological questions involved in investigating complex issues, and implications are drawn for teacher behaviour in banded comprehensive schools. 相似文献
996.
Christian Rittelmeyer 《Zeitschrift für Erziehungswissenschaft》2013,16(3):217-231
Transfer research examines how artistic activities can have an impact outside of the realm of art itself. The article concludes that this research can be carried out in a meaningful way, only within the framework of a comprehensive theory of aesthetic education. This theory would encompass the structural analysis of artistic activity, as well as biographical reports about artistic experiences. The elucidation of the concepts or themes relevant to the theory would include the notion of aesthetic experience, the understanding of immediate, aesthetic experiences, the analysis of artistic processes, and the outcomes of scientifically evaluated applications of aesthetic education. 相似文献
997.
This paper addresses potential negative effects of systematic external competence assessment on different levels of the education system. We discuss possible sources of misinterpretations of competence assessment feedback, potential consequences of feedback and assessment for different education stakeholders (teachers, students, and educational administration) as well as negative effects of systematic competence assessment on the culture of teaching and learning. The paper concludes with some reflections on possibilities to prevent or reduce the discussed negative effects. 相似文献
998.
Wie können Ergebnisse der Kompetenzdiagnostik in Forschungsprojekten sinnvoll zurückgemeldet werden?
Reporting on research results to students, teachers and institutions is a big challenge within competence assessment research: students individually have to be given feedback about how they performed, teachers have to be provided with information about their classes, education authorities are interested in actual research results. For feedback being helpful for students, teachers and institutions, the following questions have to be thought of: (1) Who is the feedback given to? What is the aim of the feedback? (2) Which results shall be reported? (3) How should feedback theoretically look like? And (4) how does feedback depend on the given general framework? The given article discusses these questions and offers a “checklist” to research projects with a focus on competence assessment. 相似文献
999.
This article is focussing on a historical approach to the term of aesthetic education from three different angles: as history of ideas, biographies and images. Aesthetic education is thereby understood as performative and reflective involvement with aesthetics and the fine arts such as arts, theatre and literature etc. A first approach is defining the history of ideas as a theoretical reconstruction of aesthetic concepts and their educational relevance; this history is also discussing educational theories and their aesthetic implications. It is more or less an implicit and compensatory history because the important contexts are not visible at first sight; and the aesthetic and pedagogical theories often need a reciprocal addition. A biographical perspective is hereby concentrated on the biography of artists. Thereby the educational science of biographies are highlighting the situation of the arts and the artists, the development of becoming an artist, the progression as an artist and the artistic institutions in a educational-aesthetic nexus. Such a perspective is supplementing the history of ideas concerning cultural and socio-historical dimensions as well as institutional and biographic aspects. Finally, the history of images is focusing on the thesis that every picture also includes a programme of aesthetic education. In pictures the process of productive and reflective visualisation is expressed: paintings refer to their production and their understanding. For the method of the historical-educational iconography of aesthetic education a historicizing matrix from production aesthetics, work aesthetics and reception aesthetics is suggested. This matrix is combined with a theory of education as transformation of self-relation, of relations to other individuals and the world. The three approaches just mentioned are exemplified by Leonardo da Vinci and his famous picture “Vitruvian Man” from 1492. 相似文献
1000.