Curriculum Design of a Flipped Classroom to Enhance Haematology Learning

A common trend in higher education is the “flipped” classroom, which facilitates active learning during class. The flipped approach to teaching was instituted in a haematology ‘major’ class and the students’ attitudes and preferences for the teaching materials were surveyed. The curriculum design was explicit and involved four major components (1) the preparation of the students; (2) the weekly pre-class work; (3) the in-class active learning strategies and (4) closing the learning loop using formative quizzes. Each of these components is discussed in detail and was informed by sound pedagogical strategies. Several different sources of information and several freely available software tools to engage the students are discussed. Two iterations are reported here, with improved pass rate for the final examination from 47 to 48 % in the traditional class to 56–65 % in the flipped classroom approach. The majority of students (93 and 89 %) came to the class prepared, after viewing the screencasts and engaged fully with the activities within the face-to-face time. The students perceived that solving case studies (93 %) was the most beneficial activity for their learning and this was closely followed by the production of essay plans (71 %). The majority of students recommended that this approach be repeated the following year (69 and 75 %).     

在英语教学中如何运用现代教育手段

随着现代教育技术的发展,多媒体被广泛应用于英语教学之中,在教学中必然会大大促进教育教学质量的全面提高,虽然是很有效,但如不能合理应用,必然导致喧宾夺主的后果.该文对如何更好地运用多媒体,进行辅助英语教学进行探讨.     

社会固定资产投资地区差距的结构分解

投资是促进经济增长的重要源泉之一,地区之间的经济发展差距必然与地区投资差距相互关联。采用基尼系数及其分解方法研究了中国社会固定资产投资地区差距的结构分解问题。基本结论是:我国存在着较大的地区投资差距,但这种差距有进一步缩小的趋势。地区之间的投资差距主要表现为利用外资和民间资本的差距,民间资本投资差距是导致地区投资差距的主要原因。     

当前园区模式的基本特征、主要类型和发展趋势

园区模式已发展成为国家、地区进入wTo后培育战略产业，获取企业竞争优势的重要途径之一，国家、地区寻求经济快速发展、实现产业升级的突破点和抓手。本文认为园区模式具有地域集聚性、知识密集性、投资风险性、发展创新性的基本特征，由此，分析了我国各类经济开发区中与中心城市功能发展密切的科教园区(高新技术区)、工业园区(经济技术开发区)和贸易园区(保税区)发展现状，探讨新的形势下我国园区模式的发展趋势。     

重大突发事件社交媒体信息归档与管理——基于新型冠状病毒肺炎战疫的思考

信息社会不断发展,新兴媒体影响越来越广泛,社交媒体不仅是政府和公众沟通重大突发事件的主要渠道,也成为记录重大突发事件社会记忆的重要平台。重大突发事件社交媒体信息归档有助于提高政府应对突发事件的能力水平,健全国家应急管理体系,留存珍贵历史记忆。文章根据重大突发事件社交媒体信息的突发性、持续性、多样性、价值性特点从归档目标、归档主体、归档范围、归档方法四方面提出归档管理建议。     

基于区块链技术的社交媒体信息归档的可行性分析

[目的/意义]区块链,作为比特币的重要底层技术,在改变了全世界货币和商业运转的规则之后,为全球经济与社会发展掀起了一股“区块链风暴”,“互联网+时代”社交媒体成为时代的宠儿,自然也受到了区块链及其技术的影响。长期困扰学界的社交媒体信息归档的难点,如归档安全问题、技术问题以及用户隐私问题在区块链技术的支持下,激发了全新的发展方向。[方法/过程]本文通过观察研究、归纳梳理和文献研究的方法,详细剖析区块链技术对于解决社交媒体信息归档难点的各项技术优势,并在分析技术优势的基础上初步构建了一个基于区块链技术的社交媒体信息归档流程的模型。[结果/结论]文章在展望去中心化的美好未来的同时,认为社会应当审慎看待区块链技术参与社交媒体信息归档的有利因素,不能满足于技术带来的进步而忽视了可能发生的风险问题。     

试论国立西南大学的筹建

民国肇建,百废待兴,培养人才成为共和要务。1919年,广东军政府根据陈炯明提议,决定在广东筹建西南大学,次年2月,广东军政府通过西南大学大纲等文件,后因种种客观因素,西南大学最终未能如期建立。但其作为民国时期筹建的国立大学,所设计的西南大学董事会、评议会、各科教员会等制度,为后来成立的高校提供了有益的借鉴。     

档案数据库标准体系的构建

档案数据库是档案信息资源建设的核心内容,也是档案信息系统的中心模块,全国以及各地方的档案信息化规划中都将档案数据库建设作为其重点内容.     

Effects of osmotic stress on antioxidant enzymes activities in leaf discs of P<Subscript>SAG12</Subscript>-<Emphasis Type="Italic">IPT</Emphasis> modified gerbera

Leaf senescence is often caused by water deficit and the chimeric gene PSA612-1PT is an auto-regulated gene delaying leaf senescence. Using in vitro leaf discs culture system, the changes of contents of chlorophylls, carotenoids, soluble protein and thiobarbituric acid reactive substance （TBARS） and antioxidant enzymes activities were investigated during leaf senescence of PSA612-1PT modified gerbera induced by osmotic stress compared with the control plant （wild type）. Leaf discs were incubated in 20%, 40% （w/v） polyethylene glycol （PEG） 6 000 nutrient solution for 20 h under continuous light [ 130 μmol/（m^2·s）]. The results showed that the contents of chlorophylls, carotenoids and soluble protein were decreased by osmotic stress with the decrease being more pronounced at 40% PEG, but that, at the same PEG concentration the decrease in the transgenic plants was significantly lower than that in the control plant. The activities of superoxide dismutase （SOD）, catalases （CAT）, ascorbate peroxidase （APX）, guaiacol peroxidase （GPX） and dehydroascorbate reductase （DHAR） were stimulated by PEG treatment. However, the increases were higher in PSA612-IPT transgenic plants than in the control plants, particularly at 40% PEG treatment. Lipid peroxidation （TBARS content） was increased by PEG treatment with the increase being much lower in transgenic plant than in the control plant. It could be concluded that the increases in the activities ofantioxidant enzymes including SOD, CAT, APX, GPX and DHAR were responsible for the delay of leaf senescence induced by osmotic stress.     

保障我国石油安全的战略举措

保障我国石油安全,解决我国石油消费高幅度增长与原油产量低幅度增加矛盾:大力节约用油,提高石油利用效率;实施石油替代战略,逐步改善我国能源结构;实行全球多方位石油进口战略,加快“走出去”的步伐;加强国内的勘探工作,降低石油对外依存度;建立石油储备体系,确保原油不间断补给。