浅析高校留学生管理工作的理念与机制创新

随着教育国际化步伐的加快和国内高校国际化水平的提升,加强对高校留学生管理工作的重要意义日益凸显。高校应该在明确留学生管理的目标理念和留学生群体特征的基础上,从留学生的管理职能实现、管理机构设置以及培养项目类型等三个方面形成多元化的留学生管理格局。     

显微网络互动多媒体系统在遗传学实验教学中的应用效果

在遗传学实验教学中运用显微网络互动多媒体系统,弥补了单纯使用显微镜的不足;教师的演示、学生的反馈更及时,教师的指导更具有针对性,并加强了信息沟通和互动;强大的图片采集、保存与处理功能,有利于激发学生的实验兴趣,有利于加深对理论知识的理解;多画面的监控转播功能,可控制教学进度,提高实验课程效率和教学效果。     

基于平台的网络课程建设—以光学测试技术网络课程为例

针对光学测试技术课程传统教学模式中存在的问题,依托＂军队院校网络教学应用系统＂平台,构建了网络课程,介绍了网络课程的主要内容、功能模块以及在实际应用中产生的效果。     

《大学计算机基础》课程WORD部分学生能力评价研究

《大学计算机基础》课程的学习完成后,针对于"本科应用型人才"培养目标,该如何评价其中WORD部分的实际应用能力,本文对评价标准做出了归纳和总结.     

高校教师教学技能培训现状的调查——以河南省豫北地区7所高校为例

通过对河南省7所高校教师教学技能培训状况的调查发现,高校教师普遍重视多渠道提升自己的教学技能,尤其认同教学技能培训在促进教师专业化成长方面的重要作用;高校普遍关注教师教学技能培训,培训组织形式多样,培训内容丰富,在提高教师教学能力,尤其是对新任教师尽快适应教学方面起到了有效的引领作用。同时,高校教师教学技能培训机构和制度有待健全和完善,培训时间短,培训覆盖面小,培训效果也有待提高。     

秦桧“乞立赵氏”状真伪考辨

从有关乞立赵氏的四篇状文和相关史料记载可以看出,《宋史》及《挥麈录》等典籍记载的秦桧乞立赵氏第一状为秦桧伪造。真伪状文变化很大,且乞立赵氏状文首倡者不是秦桧,他只是连名者。秦桧凭借伪状捞取政治资本,掠美名,取富贵,势贯古今,其欺世盗名可见一斑。     

推荐时机对个性化推荐采纳影响的实验研究

[目的/意义]推荐时机是影响用户采纳的重要因素,如何选择最佳推荐时机,具有实践意义。[方法/过程]首先对推荐时机进行更为合理的界定;其次利用E-prime软件实现商品推荐的在线购物情景实验,基于行为、认知和主观调查实验数据,从行为和认知层面揭示了不同推荐时机对用户采纳影响的客观规律。[结果/结论]从推荐时机的视角为电商企业优化个性化推荐提供了有益建议。     

基于微课和翻转课堂的“游戏设计及开发”教学模式研究

传统的游戏设计及开发课程教学模式是老师上课照本宣科,学生课后自己设计游戏时往往感到棘手,缺乏创新思维和创新空间,阻碍了学生的思维能力和创新能力的养成。本文提出将微课教学资源和基于翻转课堂的教学模式统一应用到游戏设计及开发教学中,使学生重视游戏内容的问题性、前沿性和适用性,提高学生的知识迁移能力。     

Coronavirus disease(COVID-19):The need to maintain regular physical activity while taking precautions

The on-going Coronavirus disease(COVID-19)outbreak in China has become the world's leading health headline and is causing major panic and public concerns.On January 30,2020,the World Health Organization(WHO)declared that the new coronavirus outbreak is a public health emergency of international concern.1 The virus has already had a direct impact on more than 10 million people in the city of Wuhan and has reached other parts of China as well,posing a health threat of unknown magnitude globally.As of February 8,2020,WHO reported 34,886 confirmed cases of COVID-19 globally,with 34,589 of them occurring in China(including 6101 severe cases and 723 deaths).A total of 288 other confirmed cases(with 1 death)have been reported in 24 countries,including Japan,Australia,Germany,and United States.2 However,these daily estimates are expected to rise even higher as reports from health authorities in China3 are gathered and near real-time updates of the Johns Hopkins virus dashboard are made 4 The outbreak has caused governments in various countries to take swift and protective measures.In China,these included putting cities on lockdown,5 implementing travel wamings/bans and cancellations,6 extending national holidays,and closing schools and postponing classes7.     

Mineralogy of the deep lower mantle in the presence of H2O

Understanding the mineralogy of the Earth''s interior is a prerequisite for unravelling the evolution and dynamics of our planet. Here, we conducted high pressure-temperature experiments mimicking the conditions of the deep lower mantle (DLM, 1800–2890 km in depth) and observed surprising mineralogical transformations in the presence of water. Ferropericlase, (Mg, Fe)O, which is the most abundant oxide mineral in Earth, reacts with H₂O to form a previously unknown (Mg, Fe)O₂H_x (x ≤ 1) phase. The (Mg, Fe)O₂H_x has a pyrite structure and it coexists with the dominant silicate phases, bridgmanite and post-perovskite. Depending on Mg content and geotherm temperatures, the transformation may occur at 1800 km for (Mg_0.6Fe_0.4)O or beyond 2300 km for (Mg_0.7Fe_0.3)O. The (Mg, Fe)O₂H_x is an oxygen excess phase that stores an excessive amount of oxygen beyond the charge balance of maximum cation valences (Mg²⁺, Fe³⁺ and H⁺). This important phase has a number of far-reaching implications including extreme redox inhomogeneity, deep-oxygen reservoirs in the DLM and an internal source for modulating oxygen in the atmosphere.