全文获取类型
收费全文 | 2555篇 |
免费 | 17篇 |
国内免费 | 206篇 |
专业分类
教育 | 1385篇 |
科学研究 | 500篇 |
各国文化 | 7篇 |
体育 | 101篇 |
综合类 | 95篇 |
文化理论 | 1篇 |
信息传播 | 689篇 |
出版年
2023年 | 7篇 |
2022年 | 18篇 |
2021年 | 27篇 |
2020年 | 46篇 |
2019年 | 39篇 |
2018年 | 23篇 |
2017年 | 22篇 |
2016年 | 28篇 |
2015年 | 45篇 |
2014年 | 168篇 |
2013年 | 170篇 |
2012年 | 158篇 |
2011年 | 214篇 |
2010年 | 178篇 |
2009年 | 190篇 |
2008年 | 253篇 |
2007年 | 206篇 |
2006年 | 230篇 |
2005年 | 167篇 |
2004年 | 171篇 |
2003年 | 120篇 |
2002年 | 79篇 |
2001年 | 69篇 |
2000年 | 48篇 |
1999年 | 32篇 |
1998年 | 25篇 |
1997年 | 13篇 |
1996年 | 7篇 |
1995年 | 6篇 |
1994年 | 8篇 |
1993年 | 6篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1979年 | 2篇 |
1976年 | 1篇 |
排序方式: 共有2778条查询结果,搜索用时 328 毫秒
41.
开架借阅中读者服务细节的完善 总被引:14,自引:0,他引:14
本文针对全开架借阅中的一些容易被忽视的问题,从细微末节处探讨如何改善服务,体现人文精神。 相似文献
42.
图书馆数字资源访问统计研究 总被引:10,自引:0,他引:10
分析了国内外图书馆数字资源访问统计的研究现状,探讨了进行图书馆数字资源访问统计的方法,比较了数字资源访问统计的指标,并就目前我国图书馆数字资源访问统计存在的问题进行了讨论。 相似文献
43.
Matthew B. Hoy 《Medical reference services quarterly》2018,37(1):81-88
Voice assistants are software agents that can interpret human speech and respond via synthesized voices. Apple’s Siri, Amazon’s Alexa, Microsoft’s Cortana, and Google’s Assistant are the most popular voice assistants and are embedded in smartphones or dedicated home speakers. Users can ask their assistants questions, control home automation devices and media playback via voice, and manage other basic tasks such as email, to-do lists, and calendars with verbal commands. This column will explore the basic workings and common features of today’s voice assistants. It will also discuss some of the privacy and security issues inherent to voice assistants and some potential future uses for these devices. As voice assistants become more widely used, librarians will want to be familiar with their operation and perhaps consider them as a means to deliver library services and materials. 相似文献
44.
The present study compared secondary traumatization among child protection social workers versus social workers employed at social service departments. In addition, based on Conservation of Resources (COR) theory, the study examined the contribution of working in the field of child protection as well as the contribution of background variables, personal resources (mastery), and resources in the workers’ social and organizational environment (social support, effectiveness of supervision, and role stress) to secondary traumatization. The findings indicate that levels of mastery and years of work experience contributed negatively to secondary traumatization, whereas exposure to child maltreatment, trauma history, and role stress contributed positively to secondary traumatization. However, no significant contribution was found for social support and effectiveness of supervision. The study identifies factors that can prevent distress among professionals such as child protection workers, who are exposed to the trauma of child abuse victims. Recommendations are provided accordingly. 相似文献
45.
Most work in the design of learning technology uses click-streams as their primary data source for modelling & predicting learning behaviour. In this paper we set out to quantify what, if any, advantages do physiological sensing techniques provide for the design of learning technologies. We conducted a lab study with 251 game sessions and 17 users focusing on skill development (i.e., user's ability to master complex tasks). We collected click-stream data, as well as eye-tracking, electroencephalography (EEG), video, and wristband data during the experiment. Our analysis shows that traditional click-stream models achieve 39% error rate in predicting learning performance (and 18% when we perform feature selection), while for fused multimodal the error drops up to 6%. Our work highlights the limitations of standalone click-stream models, and quantifies the expected benefits of using a variety of multimodal data coming from physiological sensing. Our findings help shape the future of learning technology research by pointing out the substantial benefits of physiological sensing. 相似文献
46.
In sub-Saharan Africa, where there is limited financial and human capital, it is important to examine how social relationships may serve to promote or undermine human capital formation. However, little is known about the contributions of social relations to human capital development, especially in terms of academic achievement in Africa. This study examined how variations in key aspects of social relations among teachers; between teachers and students; between principals, teachers, parents and students affect achievement in mathematics among sixth graders in 70 schools in six districts in Kenya. We modeled mathematics achievement as a function of measures of social perception and support while adjusting for school-, classroom- and student level background characteristics. We found that net of teacher subject knowledge and background characteristics, teachers who display commitment to teaching by always correcting homework and keeping students engaged during math lessons had their students performing better. Teacher absenteeism and lack of interest in teaching were negatively associated with performance in math. Lack of parental involvement in the classroom also had negative effects on grades. At the school level, the level of engagement of the principal, measured by supervision of teachers and good interpersonal interactions with parents had positive effects on math achievement. Schools where parents provided material and financial support had better grades, while student delinquency and absenteeism negatively affected grades. 相似文献
47.
This study empirically examines the effect of child labor on academic achievement in 10 francophone Western and Central African countries. The data were taken from the Programme d’Analyse des Systèmes Educatifs de la CONFEMEN and comprised characteristics of 25,288 grade six students across 1803 schools. Two-stage least squares analysis highlights that child labor undermines academic achievement regardless of subject, gender, and age. It lowers reading and mathematics scores for both genders and for children under 12 and over 13 years. Child labor therefore hinders human capital accumulation in African countries, and it takes place at the cost of future prosperity. 相似文献
48.
Klaus Hüfner 《European Journal of Education》2011,46(1):117-126
In this article, the work of three international governmental organisations (IGOs) dealing with human rights will be discussed, namely the United Nations Educational, Scientific and Cultural Organization (UNESCO), the United Nations Children's Fund (UNICEF)1 and the Council of Europe (CoE). In the first section, the main characteristics of the three IGOs in terms of similarities and differences will be elaborated. Then, their human rights approach to education will be described, dealing with the legal foundations. In the final section, the different strategies of implementation based on both their official mission statements and their present strategy papers will be evaluated under the heading ‘competition vs. cooperation’. 相似文献
49.
网络学习中的“信息迷航”问题初探 总被引:13,自引:0,他引:13
吴伟敏 《现代远程教育研究》2001,(2):25-28
网络教育的兴起正在使更多的教师和学生将教学活动转移到网络上,这种新的教学方式在带给我们快捷和便利的同时也给我们带来了一些新的问题,正视这些问题并深入分析直至解决它们将网络教育发挥更大的作用。“信息迷航”正是其中普遍存在而又亟待解决的一个重要问题。 相似文献
50.
随着计算机技术、网络技术和现代通讯技术在图书馆各项业务中的广泛应用,传统图书馆开始向数字化的方向发展。因此图书馆的信息资源建设和服务,必须坚持以人为本,通过人本管理和人性化的服务,充分满足网络环境下的读者用户对信息的需求趋向。 相似文献