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排序方式： 共有127条查询结果，搜索用时 265 毫秒
81.
[目的/意义]图书馆在知识社会发展中扮演着重要角色,政府数据开放共享有利于人们利用数据创造知识,分析政策要素可以协助图书馆在收集、管理、处理、服务上厘清权益问题并制订实施方案。[方法/过程]调研国外开放政府数据政策,从执行方案、权责声明、服务政策三个方面综述政策要素,并以综述结果为基础分析图书馆的作用。[结果/结论]完善的政策体系有助于数据共享,而且图书馆可以协助推动良好实践,其中政策要素包括:执行方案(界定政策范围、组织推进小组、明确执行任务)、权责声明(建立问责机制、遵循既有法规、坚持开放边界)、服务政策(规划基础设施、提出服务要求、设定屏蔽原则)等。 相似文献
82.
组建中国ArXiv服务工作组促进我国有效参与OA活动 总被引：1，自引：0，他引：1
ArXiv是一个由康乃尔大学图书馆运营的重要开放获取系统,在国际科学家团体中起着重要的作用。为了推动ArXiv在我国相关领域的普及,促进我国科技界积极参与ArXiv预印本论文的存缴和资源的有效利用,中国科学院国家科学图书馆于2012年8月发起成立中国ArXiv服务工作组的倡议,得到国内多家主要图书馆的响应。2012年10月22日,在"中国开放获取推介周"上,国内10家重要机构成立"中国ArXiv服务工作组",主要探讨ArXiv在科研成果开放发表中的特殊地位,分析ArXiv在中国科技界的主要应用情况,研讨中国ArXiv服务工作组将如何更有效地推动ArXiv在中国科技界中的普及和应用。 相似文献
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The condition of poverty is pervasive worldwide and is multifaceted in its ability to have a deleterious generational impact. Although China has greatly reduced the proportion of people living in abject poverty over the past three decades, there are still millions of families living in extreme poverty. This study investigated the influences of families’ socioeconomic status on students’ educational achievement in China with regard to the National College Entrance Exam (NCEE) scores and subsequent college enrolment. We interviewed 132 recent high school graduates from schools in six urban cities from low-socio-economic status (SES) homes. The findings revealed that school climate (general school quality, student-teacher interactions, and peer pressure) and home environment (parental support, student-parent relationship, and family size) negatively impacted their educational achievement. Students were cognisant that the schools they attended did not have the same high reputation as schools attended by their more affluent peers and felt that their teachers openly discriminated against them. Additionally, their parents did not have the time or financial resources to help them advance educationally. We propose the low-SES Educational Achievement Framework to illustrate the phenomenon of environmental conditions that may influence the low-SES students’ NCEE scores and ultimately result in low college enrollment rates in China. 相似文献
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ABSTRACT One of the blended learning strategies that researchers and educators commonly use in higher education is Flipped Classroom. The purpose of this case study was to explore how both professors and students perceive student engagement in flipped classrooms. Three college professors who implemented flipped classrooms and their 14 students participated in the study. Three individual faculty interviews and three student focus group interviewers were conducted. Five components of the utilization-focused evaluation model were used in the data coding. The findings revealed both positive and negative opinions depending on how they implemented the flipped classroom including the engagement of students and the environment. Faculty participants who fully implemented the flipped model had positive opinions about the implementation and student engagement, finding the model helped increase student performance and grades. In addition, the majority of student participants liked the challenges offered by the flipped classroom, which increased their engagement. 相似文献
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Heng-Yu Ku Maria K. E. Lahman Hsin-Te Yeh Yi-Chia Cheng 《Educational technology research and development : ETR & D》2008,56(3):365-377
This qualitative case study was an examination of a team-based faculty/mentor-led International Doctoral Student Support Group
(IDSSG) designed specifically around issues in preparing and mentoring international doctoral students for careers in academia.
Twelve participants were selected to participate in a support/focus group that met twice a month for an academic year to attend
workshops and discuss their lives as doctoral students. The data set was comprised of two pre- and post-surveys and two in-depth
pre- and post-interviews. Findings in the themes of international doctoral students’ graduate school experiences and the impact
of the faculty-led support group are presented and discussed.
相似文献
| Yi-Chia ChengEmail: |
89.
The purpose of this qualitative research was to explore (a) how graduate students interpret their experiences with the use of e-books for learning, (b) which reasons influence their preference for e-books or printed books when they learn, (c) how they perceive the impact e-books have on their learning, and (d) how they compare learning experiences between the use of a given printed book and an e-book containing similar content but also offering additional multimedia options. Participants consisted of 20 graduate students from one midsize university in the United States. The major findings of this research were that graduate students generally prefer using e-books to printed texts. When studying and preparing for an exam, however, graduate students will only supersede their familiarity with printed text if a given e-book offers similar content as the printed text and provides additional resources. Research implications and recommendations for future research were also provided. 相似文献
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根据对称分量分析原理,将电动机定子电流分解成正序、负序和零序分量,依据各种序量的大小,判别电动机运行状态和各种故障类型;采用INTEL80C196KB单片机技术,实现了一种新型的异步电动机综合保护装置。该装置保护功能齐全,性能可靠,工作稳定,维护方便。文章对该保护装置的保护判据、硬件结构以及保护算法进行了介绍。 相似文献