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虚拟实验室导览系统的关键技术研究 总被引：1，自引：0，他引：1
虚拟现实导览系统除了能实现实时交互、顺畅浏览外,还应具备场景内空间对象的信息查询功能。探讨了采用VRML技术构建综合型虚拟实验室的一般流程、空间对象的场景数据组织、空间网格对场景的分割方法以及浏览时的场景分割与优化。以综合型虚拟实验室为例,实现了基于空间网格分割的信息双向查询,并给出了具体实现结果。 相似文献
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相比书面通知、网上查询,若能利用短信进行成绩的查询,对于学生及其家长来说,是最为方便、快捷的。短信服务系统能接收手机用户的短信查询请求并返回相应的查询结果信息。基于SMS系统所具有的这一特性和学生成绩短信查询的现实需求。本文作者设计和实现了学生成绩查询SMS系统。主要介绍了学生成绩查询、SMS系统的设计与实现。 相似文献
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主要探讨了"地理空间元数据引擎池"的概念及其实现,其核心问题包括2个方面,一是利用可扩展标记语言(XML)实现一体化地理空间元数据的表达;二是利用文档对象模型(DOM)实现一体化地理空间元数据的查询。前者实际上是后者的数据基础,后者则主要解决了条件查询时对地理空间元数据信息的解析和抽取。 相似文献
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中美义务教育中"择校"问题比较 总被引：3，自引：0，他引：3
"择校"现象已成为义务教育阶段的热点问题.本文从择校行为的理论基础、学生及家长的选择空间、"择校"争论与公众态度、政策与法律取向四个角度对中美义务教育中的"择校"现象进行了比较,在此基础上进一步阐述了对"择校"行为应持的态度和解决这一问题的策略性建议. 相似文献
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近几年,国家不断出台新政解决择校乱象,但社会和学术界对于择校与就近入学的合理性与合法性问题却一直争论不休。为此,本研究将从剖析义务教育择校权利公平的有限性入手,分析择校制度本身存在的合法性,同时揭示实现义务教育公平择校的条件。在此基础上,分析我国义务教育择校过程中的权利爆炸将加剧教育资源配置和教育机会的不公平。最后,提出我国实现义务教育公平择校的可能性及具体策略,包括强化政府责任意识,坚持就近入学原则,以遏制非法择校现象。同时,加强教育资源均衡配置,从而最终实现对公平择校的理性追求。 相似文献
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择校问题是关乎民生的重大问题,择校现象在现阶段存在具有一定的合理性和必然性。择校权是学生和家长的基本人权;择校是学生及其家长追求教育公平的正当需求;择校是我国经济社会发展的客观要求;择校是保障儿童多样化、个性化发展的需要。规范和治理择校现象应因势利导：确立学生及其家长择校的合法性地位;规范无序、失控的择校行为;逐步放开择校市场;保障公平择校的基本条件;拓展义务教育择校空间;保障义务教育择校主体权利。 相似文献
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利用ArcGIS API for JavaScript结合ArcGIS Server进行WebGIS开发。设计和开发了河南大学数字校园系统,系统实现了显示与操作、数据查询、数据处理和空间分析等功能,探讨了基于WebGIS系统搭建的一般流程和关键技术。 相似文献
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构建和谐社会的基础在于实现教育公平。择校表面看起来有与教育公平相违背的一面,但事实上,择校并不妨碍教育公平。择校是教育资源配置不均的结果,政府部门应该加大教育资源均衡化的力度,从根本上解决"择校风"问题,同时规范择校费的收支运作情况。 相似文献
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高考考生择校填报志愿受到社会的极大关注,它不仅关系到考生能否顺利进入相应理想的院校和专业,也关系到高校能否录取到合格的学生,更关系到国家高等教育事业的健康发展.本文采用回归分析法,运用spss统计软件对影响考生择校因素进行实证分析,以供考生、学校和相关部门参考,进而完善高考填报志愿工作科学发展. 相似文献
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Three experiments were conducted to study on a more fine-grained level how processing a picture facilitates learning from text. In Experiment 1 (N = 85), results from a drawing task revealed that the global spatial structure of a pulley system picture was extracted even from its brief inspection (for 600 ms, 2 s). In Experiment 2 (N = 105), students who initially inspected the pulley system picture (for 600 ms, 2 s, or self-paced) had better comprehension of the system's functions and made more eye movements in line with the system's global spatial structure when listening to text than students who listened to text only. In Experiment 3 (N = 39), students who first saw the picture (for 2 s) processed written text of the pulley system's spatial structure more efficiently than students who read text only. Results suggest that global spatial information extracted from the picture was used as a mental scaffold to facilitate mental model construction. 相似文献
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The dynamic changes in tertiary education that were observed in Poland for the last 20 years transformed the Polish educational
market and led to the immense expansion of educational institutions. The rapid increase in the number of students that continued
until 2006 is however over and Polish universities have begun to compete for their clients. Increased competition along with
the pessimistic forecasts for Poland with regard to demographic changes result in the growing demand for the knowledge on
determinants of student educational choices and satisfaction. Although the amount of studies in this field is growing, Poland
is still substantially underrepresented in the current research. The purpose of this article was to examine the underlying
factors behind the choices that Polish students make while pursuing their tertiary education. The research method that combines
focus groups’ discussions and a survey study among 1,420 business major students helped us to identify the factors behind
three phases of the decision making process: pursuing higher education; information search along with final choice of a university;
and satisfaction from chosen studies. Our research implies that decision making with regard to tertiary education is multifaceted
and longitudinal as it combines a different set of factors in each stage of the decision making process. 相似文献
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随着信息时代的快速发展,搜索引擎成为人们获取信息的主要工具。大学生作为网络时代的主力军,对搜索引擎的使用有着更高的敏感度。通过问卷调查法,分析发现大学生使用搜索引擎虽然频繁,但缺乏有效的搜索技巧,同时搜索引擎自身也存在着不足之处。为此,高校应辅以专业课程培训,提高大学生的搜索技巧与信息素养;搜索引擎开发公司应以用户体验为本,针对用户需求不断改进和完善搜索功能,以期推动大学生进一步优化、科学有效地使用搜索引擎。 相似文献
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The paper presents the findings of a study of the decision-making process which precedes the choice of a university in Greece.
Specifically, the degree of rationality exhibited by prospective students is assessed in an attempt to provide a test for
the economic approach to the explanation of human behaviour. Information search is used as an indication of rationality and
measured through a survey conducted among 220 university students in the academic year 2003/2004. The findings provide weak
support for the rationality postulate in that they indicate that more than 40% of respondents could not be classified as information
seekers. Logistic regression analysis was used in order to identify characteristics associated with the propensity to engage
in information search: high socioeconomic status students, students who perceived the decision as important, and students
who had acquired information prior to the choice of a university were found to be more likely to engage in information search.
The paper draws attention to the limitations of the economic rational man model of human behaviour and discusses the implications
of the findings for the promotional strategy of universities. 相似文献
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Larry Nucci Judith Smetana Noriyuki Araki Masataka Nakaue Jessamy Comer 《Child development》2014,85(3):901-907
Adolescents' obligation to disclose and their actual disclosure about their activities to parents, justifications for nondisclosure, and strategies for information management were examined in different domains in 460 middle adolescents (Mage = 16.6 years) from working and middle‐class families in Japan. Adolescents felt most obligated to disclose prudential issues, but disclosed most about personal issues. Adolescents primarily justified nondisclosure with claims to personal choice and for prudential issues, concerns with parental disapproval. They rarely lied and mostly told parents if asked or avoided the issue. Findings revealed consistencies with prior work on disclosure with European and U.S. adolescents, as well as patterns specific to the Japanese cultural setting. 相似文献
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Matthew T. McCrudden Montana K. McCormick Erin M. McTigue 《International Journal of Science and Mathematics Education》2011,9(1):163-185
We varied the spatial features of adjunct displays that depicted a complex scientific system (i.e. human circulatory system).
University students (n = 47), who were assigned randomly to a display condition before reading, selected relevant information from the text and
wrote it (a) next to a list of definitions (list condition), (b) inside boxes organized to coincide with the sequence of blood
flow (chart condition), or (c) on a picture of the heart (pictorial condition). Students in the chart and pictorial conditions
had higher scores on 2 learning tests. Results supported the nonequivalence hypothesis, which states that a spatial display can promote learning more effectively than a list because a display’s nonverbal (e.g.
spatial) features explicitly depict relationships among a system’s components. The results have implications for science educators. 相似文献
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高校科研团队体制效率提升问题探析——以制度差别性利益为视角 总被引：1，自引：0，他引：1
制度差别性利益是通过理性选择模式而发挥效用的。高校科研团队适宜性的制度设计,应基于制度差别性利益理论。通过提供具有影响力的信息与奖罚机制,协调科研团队集体利益实现和个人策略选择的关系,可以提升高校科研团队的资源配置效率与X-效率。 相似文献
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钟晨音 《Frontiers of Education in China》2008,3(4):594-606
As the teacher education in China gradually evolves from the closed one into an open one, and with the greater pressure from
the competition among universities, the transformation of normal universities is an inevitable choice. The problems that normal
universities need to face up to are the proper goal orientation and the setting of appropriate development goals. Through
the comparison and interpretation of the development goals of current normal universities in China, this paper finds similar
tendency in the development types and the choices of features. Goal orientation is vital to the development of normal universities.
Therefore, when setting and implementing development goals, a sound understanding about expressions like “the features of
operating schools” and “comprehensive universities” should be improved, and a rational thinking about the fundamental questions
should be engaged in as well.
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Translated from Gaodeng Jiaoyu Yanjiu 高等教育研究 (Journal of Higher Education), 2008, 29(2): 29–34 相似文献
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Studies have indicated the important impact of spatial abilities on science, technology, engineering, and mathematics (STEM) achievement. However, little is known about the predictors of individual differences in the growth trajectory of spatial ability. Children’s interest in learning activities plays a significant role in their ability development in literacy, math, and science. Therefore, the current study explored the role of children’s interest in spatial activities in their spatial ability development. We hypothesized that children’s interest in spatial activities would positively predict both the initial level and subsequent growth rate of spatial ability. The spatial ability of 197 Hong Kong preschool children (mean age = 52.72 months and SD = 3.30 months in the first wave of spatial ability assessment [Time 1]) was assessed four times over a two-year period, using a visual–spatial skills task. Their mothers ranked the children’s interest in various activities from 1 (most interested) to 13 (least interested) at Time 1. A growth curve analysis was performed to examine the relationships between interest in spatial activities at Time 1 and initial level and subsequent growth of spatial skills, controlling for parents’ expectations concerning spatial development, children’s interest in art activities, and demographics. The results showed that children’s interest in spatial activities significantly predicted their spatial ability growth (β = 0.252, p = .042), explaining 5.7% of the variance in growth, but was unrelated to the initial level of spatial skills. This finding highlights the importance of preserving and enhancing young children’s interest in spatial activities, among other activities, for the development of their spatial abilities. 相似文献
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Co-teaching consists of general and special education teachers who team to instruct students with and without disabilities in the same classroom. Additionally, some students with disabilities (SWD) receive instruction in special education settings. The purpose of this meta-analysis was to compare academic achievement of SWD in co-taught classes to achievement of SWD in special education settings. A comprehensive search of published and gray literature yielded 26 eligible studies with a total of 3,714 SWD. Results indicate a moderate effect size (g = 0.47) for students in co-taught settings compared to students in special education settings. Although the findings support SWD's academic achievement in co-taught classes, more information is needed to identify what distinguishes characteristics of the SWD in co-taught versus special education settings, as well as instruction in each setting. Factors related to results are described, including the lack of information about instructional practices and equivalency of students assigned to co-taught or special education settings. Implications for future researchers are provided, along with cautions about widespread placement of SWD in either setting without monitoring that effective instructional practices are in place, and that students receive specially designed instruction as stipulated on their Individualized Education Programs. 相似文献