共查询到18条相似文献,搜索用时 78 毫秒
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针对无机化学传统教学模式的不足,构建了无机化学微信平台。介绍了构建平台必需的微信公众号和微信群的建立过程和方法。分析了无机化学微信平台在教学中的实践效果,弥补了传统教学中的不足。讨论了无机化学微信平台的积极作用,提高了教师教学水平和学生的学习能力,达到了师生双赢的目的。 相似文献
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结合慕课平台、微信公众号和超星学习通,构建基于进阶式分组任务的混合式教学模式。基于各种信息技术,分别在不同的教学环节中,布置由易到难、由简单到复杂的进阶式分组任务,进行有效的混合式教学。教师通过多元反馈不断优化教学设计,通过师生互动促进有意义的教与学;学生在分组任务中通过不断探究与合作,提升学习能力。不同教学模式的教学效果的对比表明基于进阶式分组任务的混合式教学能提高学生的学习意愿,提升教学质量。 相似文献
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在传统的大学化学实验教学中,学生以被动接受为主,学习交互性差,自主思考不足,不利于学生综合素质的培养和创新能力的提高。随着互联网技术的飞速发展,基于各种信息化手段的教学模式应运而生。课立方系统可集预习系统、微信公众平台、翻转课堂等多种教学模式为一体,形成以学生为中心的全周期智能化教学模式,实现学生的实验课前练习测试、课堂数据记录、课后作业互评讨论等多种功能。实践表明,课立方系统应用于大学化学实验课程教学,能够有效提高化学实验课的教学效率,并且大大促进学生的自主学习,为互动式大学化学实验教学注入新的活力。 相似文献
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利用微信订阅号功能,将基于整体教学设计进行解构和重构后的无机与分析化学课程的教学内容发布在微信公众平台上供学生学习和师生交流。此方法能实施灵活、便捷的信息化教学;有效地改进了教学效果。 相似文献
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移动实验室行业发展探讨 总被引:1,自引:0,他引:1
移动实验室以其高移动性、现场快速检测的优势弥补了固定实验室在应对公共安全问题上的局限。移动实验室行业在政策、技术、应用、生产等方面存在不少问题,发展受到限制。解决移动实验室发展问题的关键是加强同移动实验室相关的各机构部门之间的沟通,因此有必要建立促进各机构部门良好沟通、协同发展的平台——移动实验室行业协会。移动实验室协会应选择体制内外相结合的方式组建,建立完善的体系和功能,塑造良好的形象。 相似文献
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Hans Mohr 《Angewandte Chemie (International ed. in English)》1978,17(9):670-672
The tradition of mutual trust between science and the public appears to have been broken in recent years. It is necessary to define the boundaries of science and to reflect upon the responsibility of the scientist. 相似文献
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杨学武 《广东微量元素科学》2017,24(5)
突发公共卫生事件一直是政府组织十分关注的问题。当前,在公共卫生事件出现高频率的发生几率后,健康教育工作已占据着越来越重要的地位。从宏观角度来说,突发公共卫生事件是一个涵盖范围十分广泛的事件内容,其事件包含了多个可预测与不可预测的突发状况,也包含了任何地点、任何社会群体以及任何事件当中,因此在健康教育上,需从宏观范围进行全面计划,以系统式方式对各个突发公共卫生事件做出针对性教育,且对教育内容作出可行性评估,切实保障健康教育对突发公共卫生事件有一定的作用及影响力。对此,为进一步探讨该话题,针对突发公共卫生事件健康教育基本策略展开详细探讨。 相似文献
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The present model of legislation needs to be changed as it does not permit to play its essential role as a process that improves public health. It also creates hidden technical barriers to international and even national trade while imparting a bad and negative image to irradiated foods. 相似文献
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As the information acquisition of mobile terminals such as mobile phones becomes more and more convenient, new media has gradually become the major way for people to obtain information. The WeChat public account is one of the main channels for people to receive information in their daily lives. This article introduces some practices of using the WeChat public account "Chemical Science Park" to carry out popular science work, as well as the difficulties encountered in the process and reflections. 相似文献
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铅暴露与健康风险研究之回顾与展望 总被引:2,自引:0,他引:2
基于近二十年来的相关研究报道,综述了生态环境中铅的来源与命运、当前铅暴露的途径及人类健康风险等方面的最新研究动态。并指出如何在暴露的剂量一效应上进行早期诊断,进而防治因铅暴露所造成的危害,是今后铅的人类公共卫生学领域内的重要研究课题之一。 相似文献
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Hisayuki Horai Masanori Arita Shigehiko Kanaya Yoshito Nihei Tasuku Ikeda Kazuhiro Suwa Yuya Ojima Kenichi Tanaka Satoshi Tanaka Ken Aoshima Yoshiya Oda Yuji Kakazu Miyako Kusano Takayuki Tohge Fumio Matsuda Yuji Sawada Masami Yokota Hirai Hiroki Nakanishi Kazutaka Ikeda Naoshige Akimoto Takashi Maoka Hiroki Takahashi Takeshi Ara Nozomu Sakurai Hideyuki Suzuki Daisuke Shibata Steffen Neumann Takashi Iida Ken Tanaka Kimito Funatsu Fumito Matsuura Tomoyoshi Soga Ryo Taguchi Kazuki Saito Takaaki Nishioka 《Journal of mass spectrometry : JMS》2010,45(7):703-714
MassBank is the first public repository of mass spectra of small chemical compounds for life sciences (<3000 Da). The database contains 605 electron‐ionization mass spectrometry(EI‐MS), 137 fast atom bombardment MS and 9276 electrospray ionization (ESI)‐MSn data of 2337 authentic compounds of metabolites, 11 545 EI‐MS and 834 other‐MS data of 10 286 volatile natural and synthetic compounds, and 3045 ESI‐MS2 data of 679 synthetic drugs contributed by 16 research groups (January 2010). ESI‐MS2 data were analyzed under nonstandardized, independent experimental conditions. MassBank is a distributed database. Each research group provides data from its own MassBank data servers distributed on the Internet. MassBank users can access either all of the MassBank data or a subset of the data by specifying one or more experimental conditions. In a spectral search to retrieve mass spectra similar to a query mass spectrum, the similarity score is calculated by a weighted cosine correlation in which weighting exponents on peak intensity and the mass‐to‐charge ratio are optimized to the ESI‐MS2 data. MassBank also provides a merged spectrum for each compound prepared by merging the analyzed ESI‐MS2 data on an identical compound under different collision‐induced dissociation conditions. Data merging has significantly improved the precision of the identification of a chemical compound by 21–23% at a similarity score of 0.6. Thus, MassBank is useful for the identification of chemical compounds and the publication of experimental data. Copyright © 2010 John Wiley & Sons, Ltd. 相似文献