全文获取类型
收费全文 | 3518篇 |
免费 | 37篇 |
国内免费 | 6篇 |
专业分类
教育 | 2192篇 |
科学研究 | 490篇 |
各国文化 | 17篇 |
体育 | 273篇 |
综合类 | 8篇 |
文化理论 | 43篇 |
信息传播 | 538篇 |
出版年
2022年 | 20篇 |
2021年 | 22篇 |
2020年 | 44篇 |
2019年 | 57篇 |
2018年 | 112篇 |
2017年 | 154篇 |
2016年 | 137篇 |
2015年 | 88篇 |
2014年 | 105篇 |
2013年 | 530篇 |
2012年 | 121篇 |
2011年 | 145篇 |
2010年 | 116篇 |
2009年 | 85篇 |
2008年 | 78篇 |
2007年 | 112篇 |
2006年 | 61篇 |
2005年 | 77篇 |
2004年 | 65篇 |
2003年 | 62篇 |
2002年 | 55篇 |
2001年 | 86篇 |
2000年 | 70篇 |
1999年 | 61篇 |
1998年 | 54篇 |
1997年 | 43篇 |
1996年 | 51篇 |
1995年 | 25篇 |
1994年 | 33篇 |
1993年 | 20篇 |
1992年 | 45篇 |
1991年 | 44篇 |
1990年 | 29篇 |
1989年 | 38篇 |
1988年 | 34篇 |
1987年 | 31篇 |
1986年 | 35篇 |
1985年 | 39篇 |
1984年 | 38篇 |
1983年 | 22篇 |
1982年 | 33篇 |
1981年 | 24篇 |
1979年 | 35篇 |
1978年 | 30篇 |
1977年 | 21篇 |
1976年 | 16篇 |
1974年 | 21篇 |
1972年 | 25篇 |
1971年 | 19篇 |
1966年 | 16篇 |
排序方式: 共有3561条查询结果,搜索用时 31 毫秒
31.
32.
I. V. Zibareva L. Yu. Ilina B. L. Alperin 《Scientific and Technical Information Processing》2018,45(2):106-109
The current state of the Russian Science Citation Index is analyzed. Several areas for its further development identified by long-standing active users, such as data searching, refinement, and storage; current user alerts; data input with the Science Index license; patent information; and the application programming interface (API) are investigated. 相似文献
33.
34.
35.
V. V. Arutyunov 《Scientific and Technical Information Processing》2017,44(1):64-68
This article considers the dynamics and specifics of training highly qualified scientific staff (philosophy doctors and doctors of sciences) in the field of information security and data protection in a 10-year period of 2004–2013 in basic research specialties as classified by the Higher Attestation Commission (VAC) of the Ministry of Education and Science of the Russian Federation. 相似文献
36.
This paper demonstrates the application of module arithmetic for controlling the level of information security by a new technique referred as integer splitting. The basic definitions and concepts of the method are provided. The mathematical function of arising transformation is described in detail; its properties were studied and the basic theorems were proven that justify the use of splitting in practical applications. An active system was designed and characteristic cases of its operation are considered. 相似文献
37.
Sylke V. Schnepf 《Higher Education Quarterly》2017,71(1):75-96
Dropping out of university is regularly discussed as a negative indicator. However, research on actual career trajectories of dropouts is virtually non‐existent. This study estimates the association between tertiary dropouts and career chances in 15 European countries. Using data from the 2011 Programme for the International Assessment of Adult Competencies (PIAAC), estimates are derived from the application of propensity score matching taking a variety of individual background characteristics including cognitive skills into account. Results indicate that individuals are likely to fare better in the labour market if they enrol in university and drop out than if they do not enrol at all. Policy makers need to revise the notion that dropping out is purely negative. 相似文献
38.
Victoria A. Roach Graham M. Fraser James H. Kryklywy Derek G.V. Mitchell Timothy D. Wilson 《Anatomical sciences education》2019,12(1):32-42
Research suggests that spatial ability may predict success in complex disciplines including anatomy, where mastery requires a firm understanding of the intricate relationships occurring along the course of veins, arteries, and nerves, as they traverse through and around bones, muscles, and organs. Debate exists on the malleability of spatial ability, and some suggest that spatial ability can be enhanced through training. It is hypothesized that spatial ability can be trained in low-performing individuals through visual guidance. To address this, training was completed through a visual guidance protocol. This protocol was based on eye-movement patterns of high-performing individuals, collected via eye-tracking as they completed an Electronic Mental Rotations Test (EMRT). The effects of guidance were evaluated using 33 individuals with low mental rotation ability, in a counterbalanced crossover design. Individuals were placed in one of two treatment groups (late or early guidance) and completed both a guided, and an unguided EMRT. A third group (no guidance/control) completed two unguided EMRTs. All groups demonstrated an increase in EMRT scores on their second test (P < 0.001); however, an interaction was observed between treatment and test iteration (P = 0.024). The effect of guidance on scores was contingent on when the guidance was applied. When guidance was applied early, scores were significantly greater than expected (P = 0.028). These findings suggest that by guiding individuals with low mental rotation ability “where” to look early in training, better search approaches may be adopted, yielding improvements in spatial reasoning scores. It is proposed that visual guidance may be applied in spatial fields, such as STEMM (science, technology, engineering, mathematics and medicine), surgery, and anatomy to improve student's interpretation of visual content. Anat Sci Educ. © 2018 American Association of Anatomists. 相似文献
39.
V.E. Pugach 《Russian Education & Society》2016,58(3):215-227
In this article, the author attempts to oppose the traditional school pedagogy, which he labels conceptual, with non-classical padagogy of metaphors. According to the author, this type of pedagogy is a better fit for the human mind. 相似文献
40.
V.G. Gorokhov 《Russian Education & Society》2014,56(11):75-86
The author contemplates the fate of Russian science in the light of the reforms that are going on today, and the requirements of bringing it into conformity with this country’s traditions as well as with international practices. 相似文献