全文获取类型
收费全文 | 3652篇 |
免费 | 39篇 |
国内免费 | 13篇 |
专业分类
教育 | 2321篇 |
科学研究 | 473篇 |
各国文化 | 72篇 |
体育 | 369篇 |
综合类 | 11篇 |
文化理论 | 44篇 |
信息传播 | 414篇 |
出版年
2023年 | 20篇 |
2022年 | 24篇 |
2021年 | 69篇 |
2020年 | 81篇 |
2019年 | 150篇 |
2018年 | 224篇 |
2017年 | 189篇 |
2016年 | 193篇 |
2015年 | 103篇 |
2014年 | 117篇 |
2013年 | 679篇 |
2012年 | 131篇 |
2011年 | 87篇 |
2010年 | 80篇 |
2009年 | 66篇 |
2008年 | 82篇 |
2007年 | 73篇 |
2006年 | 66篇 |
2005年 | 60篇 |
2004年 | 37篇 |
2003年 | 32篇 |
2002年 | 37篇 |
2001年 | 27篇 |
2000年 | 34篇 |
1999年 | 32篇 |
1998年 | 37篇 |
1997年 | 21篇 |
1996年 | 26篇 |
1995年 | 25篇 |
1994年 | 26篇 |
1993年 | 27篇 |
1992年 | 30篇 |
1991年 | 29篇 |
1990年 | 37篇 |
1989年 | 33篇 |
1988年 | 29篇 |
1987年 | 23篇 |
1986年 | 34篇 |
1985年 | 30篇 |
1984年 | 29篇 |
1982年 | 33篇 |
1981年 | 19篇 |
1979年 | 22篇 |
1978年 | 26篇 |
1977年 | 20篇 |
1976年 | 25篇 |
1941年 | 19篇 |
1939年 | 23篇 |
1937年 | 41篇 |
1936年 | 40篇 |
排序方式: 共有3704条查询结果,搜索用时 384 毫秒
21.
22.
E.?I.?KozlovaEmail author O.?A.?Antoshkova 《Scientific and Technical Information Processing》2018,45(1):14-21
This paper characterizes the methodological foundations of national standardization in the Russian Federation, in particular in the library and information field. The activities of Technical Standardization Committee 191 Scientific and Technical Information, Librarianship, and Publishing are reported. 相似文献
23.
Inconsistency is often considered an indication of deceit. The conceptualization of consistency used in deception research, however, has not made a clear distinction between two concepts long differentiated by philosophers: coherence and correspondence. The existing literature suggests that coherence is not generally useful for deception detection. Correspondence, however, appears to be quite useful. The present research developed a model of how correspondence is utilized to make judgments, and this article reports on four studies designed to elaborate on the model. The results suggest that judges attend strongly to correspondence and that they do so in an additive fashion. As noncorrespondent information accumulates, an increasingly smaller proportion of judges make truthful assessments of guilty suspects. This work provides a basic framework for examining how information is utilized to make deception judgments and forms the correspondence and coherence module of truth-default theory. 相似文献
24.
This study investigates the convergence of two bibliometric approaches to the measurement of interdisciplinary research: one based on analyzing disciplinary diversity in the reference list of publications, the other based on the disciplinary diversity of authors of publications. In particular we measure the variety, balance, disparity and integrated diversity index of, respectively, single-author, multi-author single-field, and multi-author multi-field publications. We find that, in general, the diversity of the reference list grows with the number of fields reflected in a paper’s authors’ list and, to a lesser extent, with the number of authors being equal the number of fields. Further, we find that when fields belonging to different disciplines are reflected in the authors’ list, the disparity in the reference list is higher than in the case of fields belonging to the same discipline. However, this general tendency varies across disciplines, and noticeable exceptions are found at individual paper level. 相似文献
25.
26.
B. G. C. Maisonneuve T. Honegger J. Cordeiro O. Lecarme T. Thiry D. Fuard K. Berton E. Picard M. Zelsmann D. Peyrade 《Biomicrofluidics》2016,10(2)
With the rise of microfluidics for the past decade, there has come an ever more pressing need for a low-cost and rapid prototyping technology, especially for research and education purposes. In this article, we report a rapid prototyping process of chromed masks for various microfluidic applications. The process takes place out of a clean room, uses a commercially available video-projector, and can be completed in less than half an hour. We quantify the ranges of fields of view and of resolutions accessible through this video-projection system and report the fabrication of critical microfluidic components (junctions, straight channels, and curved channels). To exemplify the process, three common devices are produced using this method: a droplet generation device, a gradient generation device, and a neuro-engineering oriented device. The neuro-engineering oriented device is a compartmentalized microfluidic chip, and therefore, required the production and the precise alignment of two different masks. 相似文献
27.
Nicholas Morton 《Al-Masaq: Islam & the Medieval Mediterranean》2015,27(2):109-118
This article contributes to the important debate over the conversion of the Turks to Islam. Previously, it was thought that the Turks abandoned their former steppe faith and customs very swiftly to become staunch Sunni Muslims, but this view has recently been challenged by a number of studies. The current consensus seems to be that the Turks’ adoption of Islam was a process of far longer duration, spanning many decades. This article broadens this discussion by demonstrating that the chronicles written by the First Crusaders contain much useful information that is pertinent to this question. It works through these texts, showing that they can shed new light on this point. 相似文献
28.
Nicholas Houghton 《The International Journal of Art & Design Education》2016,35(1):107-120
This article reports historical research which sought to understand the present‐day post‐secondary art curriculum through analysing its history in terms of changes in conceptions of art. It found that there have been six distinctive curricula: Apprentice, Academic, Formalist, Expressive, Conceptual and Professional. As a new curriculum has been introduced, it has co‐existed with much contained in a previous one. Most of the curriculum changes have taken place in the past 65 years. During this time, there has been a massive expansion in the education of artists and at the same time art schools accommodated first modernism and then post‐Duchampian aesthetics. A conclusion is that this has made for a very crowded curriculum. Moreover, despite there being an ever increasing choice of things a student might learn, it appears that there is nothing which all students have to learn. It can be problematic that one part of the curriculum is in contradiction to another part, and moreover this lack of a core raises fundamental, ontological questions about what art as a discipline is. 相似文献
29.
30.
Bahar Köymen Cathal O’Madagain Andreas Domberg Michael Tomasello 《Child development》2020,91(3):685-693
In collaborative problem solving, children produce and evaluate arguments for proposals. We investigated whether 3- and 5-year-olds (N = 192) can produce and evaluate arguments against those arguments (i.e., counter-arguments). In Study 1, each child within a peer dyad was privately given a reason to prefer one over another solution to a task. One child, however, was given further information that would refute the reasoning of their partner. Five-year-olds, but not 3-year-olds, identified and produced valid and relevant counter-arguments. In Study 2, 3-year-olds were given discourse training (discourse that contrasted valid and invalid counter-arguments) and then given the same problem-solving tasks. After training, 3-year-olds could also identify and produce valid and relevant counter-arguments. Thus, participating in discourse about reasons facilitates children’s counter-argumentation. 相似文献