Assessing twenty‐first century skills through a teacher created video game for high school biology students

As twenty‐first century skills become a greater focus in K‐12 education, an infusion of technology that meets the needs of today’s students is paramount. This study looks at the design and creation of a Multiplayer Educational Gaming Application (MEGA) for high school biology students. The quasi‐experimental, qualitative design assessed the twenty‐first century skills of digital age literacy, inventive thinking, high productivity, and effective communication techniques of the students exposed to a MEGA. Three factors, as they pertained to these skills, emerged from classroom observations. Interaction with the teacher, discussion with peers, and engagement/time‐on‐task while playing the MEGA suggested that students playing an educational video game exhibited all of the projected twenty‐first century skills while being engrossed in the embedded science content.     

未来20年汽车电子技术发展趋势

安全性、节能、减排和舒适娱乐性是汽车电子未来发展的主要方向,全球各大汽车电子研发团队争相加大对这4个方面的研发力度．本文介绍了全球最具影响力的来自欧洲、美洲和亚洲的6个专业汽车电子研发公司的最新研究进展,主要集中在汽车安全、动力性、环保、车载通讯、信息娱乐、半导体技术和微控制器的开发上．分析结果表明,未来20年内汽车电子工业发展的重点将转移到第三世界国家,汽车性能的提高更多地依赖于电子技术的提升,电动汽车将不可阻挡地占据重要地位．     

Episodic and individual effects of elementary students' optimal experience: An HLM study

The authors defined optimal experience as a functional state of a relatively high level of concentration, time distortion, satisfaction, and enjoyment (Csikszentmihalyi, 1992 Csikszentmihalyi, M. (1992). The flow experience and its significance for human psychology. In M. C. I. S. Csikszentmihalyi (Ed.), Optimal experience: Psychological studies of flow in consciousness. London, England: Cambridge University Press. [Google Scholar]) and collected data through the Day Reconstruction Method. In three random days, 147 fifth-grade students answered questionnaires for each school event in the previous day resulting repeated data from 2,288 episodes. Several hierarchical linear models were conducted. The authors found that elementary students perceived better quality of optimal experience during break time versus classes taught by activity, seatwork or lecture methods. Unexpectedly, more optimal experience was reported in the events when students perceived themselves as having high skill but low challenge, contradictory to the original expectation of skill–challenge balance. Four additional flow conditions were more effective than primary flow condition and instructional methods in predicting optimal experience. Finally, optimal experience varied much more across event-episodes than among individuals meaning that teachers have rooms to improve students' optimal experience in elementary school days.     

转型时期权力失控的制约措施

权力失控导致的“权力病”几乎成了一直难以医治的“癌症”，社会主义国家是人民当家作主的国家，其宗旨在于从根本上医治这种“权力病”，实行民主管理，社会监督，依法治国。     

皖西优质烟综合栽培技术

皖西的水、肥、汽、热等自然资源丰富，适合优质烟的综合栽培技术措施的展开；适宜的烤烟良种为NC89，根据本地的降雨、土壤等自然条件，提出了一系列合理的施肥方法，适时的青苗移栽与轮作有密切联系，烟稻轮作在本地有良好的经济效益，且对烟叶的内外品质没有太明显的影响。     

《无机及分析化学》课程教学改革与实践

根据高职高专院校人才培养方案,对《无机及分析化学》课程进行改革与实践,从教学内容、教学方法、教学手段、考试考核方法、教学条件和教学效果等方面进行了详细的介绍。     

王国维的"有我"与"无我"

古代中国是一个没有宗教传统的国家,这深刻地影响了中国文化对人与自然的关系的处理。与西方文化的天人分裂不同,中国文化中自然既不是人化的自然,同时人也没有消失。王国维的“有我”与“无我”是对西方诗的概括,并不符合中国诗的实际。     

CD19-positive acute myeloblastic leukemia with trisomy 21 as a sole acquired karyotypic abnormality

We report that a 63-year-old Chinese female had acute myeloblastic leukemia (AML) in which trisomy 21 (+21) was found as the sole acquired karyotypic abnormality. The blasts were positive for myeloperoxidase, and the immunophenotype was positive for cluster of differentiation 19 (CD19), CD33, CD34, and human leukocyte antigens (HLA)-DR. The chromosomal analysis of bone marrow showed 47,XX,+21[2]/46,XX[18]. Fluorescent in situ hybridization (FISH) showed that three copies of AML1 were situated in separate chromosomes, and that t(8;21) was negative. The patient did not have any features of Down syndrome. A diagnosis of CD19-positive AML-M5 was established with trisomy 21 as a sole acquired karyotypic abnormality. The patient did not respond well to chemotherapy and died three months after the diagnosis. This is the first reported case of CD19-positive AML with trisomy 21 as the sole cytogenetic abnormality. The possible prognostic significance of the finding in AML with +21 as the sole acquired karyotypic abnormality was discussed.     

课程建设是网络教育教学质量的重要保证

课程建设是教学质量的重要保证.本文对网络课程的内涵和要素作深入的探讨.结合网络教育精品课程建设和评审的实践,分析网络教育试点以来的网络课程建设的进展和不足,认为网络课程建设深层次问题是:教学设计的专业化发展,学习支持服务可以弥补学习资源不足,学习资源不能代替学习支持服务.     

现代学徒制:高技能人才培养新范式

从传统学徒制到现代学徒制,高职教育的"高等性"赋予了其新的内涵。现代学徒制围绕人的全面发展和可持续发展,进一步深化了工学结合人才培养模式改革。从校企合作平台的构建、学习载体的重建、教学组织和管理模式的变革、教学团队的目标集聚以及教学评价的文化价值取向等方面系统阐述了现代学徒制的实施要素。