全文获取类型
收费全文 | 15183篇 |
免费 | 392篇 |
国内免费 | 235篇 |
专业分类
教育 | 11119篇 |
科学研究 | 1717篇 |
各国文化 | 27篇 |
体育 | 1191篇 |
综合类 | 1086篇 |
文化理论 | 27篇 |
信息传播 | 643篇 |
出版年
2024年 | 10篇 |
2023年 | 54篇 |
2022年 | 218篇 |
2021年 | 314篇 |
2020年 | 296篇 |
2019年 | 241篇 |
2018年 | 165篇 |
2017年 | 169篇 |
2016年 | 174篇 |
2015年 | 363篇 |
2014年 | 909篇 |
2013年 | 846篇 |
2012年 | 1246篇 |
2011年 | 1351篇 |
2010年 | 995篇 |
2009年 | 961篇 |
2008年 | 1092篇 |
2007年 | 1260篇 |
2006年 | 1083篇 |
2005年 | 927篇 |
2004年 | 830篇 |
2003年 | 733篇 |
2002年 | 560篇 |
2001年 | 453篇 |
2000年 | 223篇 |
1999年 | 94篇 |
1998年 | 44篇 |
1997年 | 48篇 |
1996年 | 45篇 |
1995年 | 20篇 |
1994年 | 18篇 |
1993年 | 21篇 |
1992年 | 19篇 |
1991年 | 5篇 |
1990年 | 7篇 |
1989年 | 6篇 |
1988年 | 6篇 |
1985年 | 1篇 |
1977年 | 1篇 |
1957年 | 2篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
Nick Field 《Public Library Quarterly》2018,37(2):113-126
ABSTRACTLibraries worldwide have had to re-think their purpose and adapt to changing community needs and expectations. They are no longer simply repositories for old books. Rather, they are vital components of a community’s social and economic infrastructure that connects communities and fosters creativity and innovation. This paper explores the changing role of libraries—and public value organizations more broadly—in creating positive social, economic, and environmental outcomes for individuals and communities. 相似文献
82.
当前科学教育几种主要价值取向评析 总被引:1,自引:0,他引:1
LIU Ke-wen 《教育理论与实践》2007,(15)
20世纪中叶以来,科学技术的迅猛发展,引起了人们社会生活各个方面的极大变革。这种变革对中小学科学教育观念产生了极大的影响,进而导致科学教育的价值取向也随之发生了变化,概括起来目前主要有四种科学教育价值取向,即培养"英才"的科学教育价值取向、人本主义科学教育价值取向、STS教育价值取向和培养学生科学素养的价值取向。 相似文献
83.
中国漆艺历史悠久,源远流长,是世界漆艺的源头,对世界漆艺产生了深远的影响。她有着“气韵生动的线”、“精彩绝艳的色”,是“宇宙生命的象征”和“上古东方的现代派绘画”;有着极强的防水、防蛀、防腐和装饰的实用价值。她品类繁多、用途广泛,具有极高的收藏价值。 相似文献
84.
Atsushi Sugiura Toshihiro Kitama Masahiro Toyoura Xiaoyang Mao 《Anatomical sciences education》2019,12(5):561-571
Human anatomical specimen museums are commonly used by medical, nursing, and paramedical students. Through dissection and prosection, the specimens housed in these museums allow students to appreciate the complex relationships of organs and structures in more detail than textbooks could provide. However, it may be difficult for students, particularly novices, to identify the various parts of these anatomical structures without additional explanations from a docent or supplemental illustrations. Recently, augmented reality (AR) has been used in many museum exhibits to display virtual objects in videos captured from the real world. This technology can significantly enhance the learning experience. In this study, three AR-based support systems for tours in medical specimen museums were developed, and their usability and effectiveness for learning were examined. The first system was constructed using an AR marker. This system could display virtual label information for specimens by capturing AR markers using a tablet camera. Individual AR markers were required for all specimens, but their presence in and on the prosected specimens could also be obtrusive. The second system was developed to set the specimen image itself as an image marker, as most specimens were displayed in cross section. Visitors could then obtain the label information presented by AR without any markers intruding on the display or anatomical specimens. The third system was comprised of a head-mounted display combined with a natural click interface. The system could provide visitors with an environment for the natural manipulation of virtual objects with future scalability. 相似文献
85.
自党的十七大提出积极探索用社会主义核心价值体系引领社会思潮的有效途径以来,学术界对此给予了极大的关注,并围绕着提出的必要性、有效途径和制度保障三个部分进行了广泛的研究,取得了丰硕的成果。但还存在着如:基础研究薄弱、宣传解读性成果较多;不同理论观点缺乏碰撞与争鸣等,这些问题还有待于进一步深化和拓展。 相似文献
86.
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
87.
企业赞助大型体育赛事目的是为了提升企业的市场价值,针对多家中国企业赞助2018年俄罗斯世界杯的事件,用事件研究方法考察了企业签约赞助和开赛日2个阶段股票价格的异常收益波动,并用百度指数研究了网络关注度对异常收益的影响关系。研究发现,中国企业赞助俄罗斯世界杯,在签约事件窗口内企业获得正向的市场绩效,而在开赛日事件窗口内企业获得负向的市场绩效。百度指数与股票异常收益的关系,说明网络关注度对事件影响产生催化剂的作用。研究结果表明,企业赞助大型赛事需要注重短期和长期的效果,注意防止过度炒作,并要积极采用营销组合的手段扩大赞助带来的影响和收益。 相似文献
88.
We present a variant of the Game of Pig to introduce the concepts of probability, simulation and expected value. 相似文献
89.
在工业化的中国建设后工业化的行政管理模式——服务型政府,首先要做的是打下良好的价值基础,解决中国社会转型所带来的一系列诸如信仰缺失、道德滑坡等问题。从服务型政府内在制度的建设入手,建立明确的指标体系,通过招聘、培训、固化等一系列方法,重塑行政机关领导及公务员的道德价值体系,建设道德政府,进而推动整个社会价值体系的重建,为服务型政府的建设和实现社会主义和谐社会作出努力。 相似文献
90.
本文概述了"多元解读"的产生及其必要性,以及在实施过程中,如何避免对"多元解读"的过分追求所导致的语文阅读教学的一些误区。同时,本文对"多元解读"的现状加以分析并提出了一些解决问题的策略。 相似文献