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101.
网络教学是一种时新的教学形式,发展势头迅猛。但由于其自身的特征,导致教学交互成为制约教学质量的瓶颈,因此引发了对网络教学交互的研究。本文基于班杜拉的交互决定论提出了网络教学的交互要素、交互形式、交互模式,旨在更好地研究网络教学,提高教学绩效。 相似文献
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Conceptualizing Continuous Coverage: A Strategic Model for Wall-to-Wall Local Television Weather Broadcasts 总被引:1,自引:0,他引:1
George L. Daniels - George L. Daniels is Assistant Professor of Journalism Ginger Miller Loggins is a doctoral student in the College of Communication Information Sciences at The University of Alabama Ginger Miller Loggins 《Journal of Applied Communication Research》2007,35(1):48-66
The 2005 hurricane season provided unprecedented opportunities for local television stations to serve the public interest in live, often commercial-free, coverage of severe weather. In this examination of four local television stations' coverage of four Atlantic hurricanes in two Southeastern markets, observed patterns of behavior culminated in the development of the Local Weather Continuous Coverage Model. The study showed that unlike their cable news counterparts, local television news continuous coverage prioritizes weather personnel over live, on-the-scene news reporting. Of all the weather tools used, radar was the most frequently used, followed by watch and warning graphics. 相似文献
103.
新世纪我国医学期刊发展的思考 总被引:14,自引:1,他引:13
对《1999年度中国科技期刊引证报告》中555种医学期刊的影响因子、载文量、总被引频次的统计进行排序,分析我国医学期刊发展的不足,提出新世纪应如何更好地发展的建议。 相似文献
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图书馆移动信息系统的建设 总被引:1,自引:0,他引:1
分析图书馆网络化建设的需求特点和技术潜力;在此基础上,阐述设计图书馆移动信息系统时应遵循的原则。着重论述移动信息系统建设中的基础承载网络在无线通信技术应用方面需要考虑的问题,提出基于无线局域网的移动通信网络构建方案。 相似文献
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ZHANG Wei-min MO Yu-long School of Communication Information Engineering Shanghai University Shanghai China 《上海大学学报(英文版)》2000,(Z1)
1 IntroductionIll electrical impedance tomography (EIT) an ~ ofelectrodes (for example, 16, 32 or 64 electrodes) isattached around the Object. Small alternating current areinjected into these electrodes, and the resulting voltagesare measured on the surface. Usually, Two of theelectrodes are used to inject a constallt-aml)litudesinusoidal current, and the others measure the voltagedeveloped on them. An image reconstrUchon algorithm isaPPlied tO the measured data to Produce a cross-sectiona… 相似文献
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在"依靠科技创新推动产业升级"的政策导向下,科技情报工作将发挥日益重要的作用。本文阐述了科技情报对科技管理工作的支撑,就北京借助科技情报推动成果转化的优势条件和路径方法进行了思考。 相似文献
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以上海科学技术职业学院通信与电子信息系为例,探讨在高职教育中积极推进职业资格证书与学历证书并重的双证制度,提出强化实践教学环节和改进理论教学的建议。 相似文献
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Denise Stephens Geographic Information Coordinator 《The Journal of Academic Librarianship》1997,23(6):498-504
The Web offers an exciting opportunity for geographic information services in the library. It presents both increased visibility and the challenge of providing meaningful service in an untested environment. 相似文献