“微时代”的大学英语移动教学研究     

陈迪 《鸡西大学学报》2015,(4):91-93

在简要介绍"微时代"的大学英语移动教学概念和列举其区别性特征的基础上,主要分析了基于微博、微信等"微时代产物"而实现的移动教学在大学英语教学中的应用,旨在帮助大学英语教师提高教学水平,进一步地丰富大学英语教学的研究视角,同时也有利于帮助大学生有效地进行自主化学习。  相似文献   

Learning in Retirement and Old Age: an agenda for the 21st century     

David Istance 《European Journal of Education》2015,50(2):225-238

This article is about education and learning for the ‘retired’. In using this term, it is recognised that any such definitions and given age bands cover a wide range of situations and learning needs. Such diversity should closely inform the educational agenda for older adults, and as it is a life phase defined by challenge and change ‘learning to be’ encapsulates much that is essential to that agenda. The international evidence shows how rapidly our societies are ageing, and how much longer is spent in retirement: so rapid is that change and so large the numbers of seniors and the elderly that the active nature of learning represents a critical aspect of response to this major phenomenon. Contrary to a popular image of declining skills and capacities, the evidence reveals a much more nuanced picture of capability among the retired. Comparisons are drawn with the early childhood sector, which had parallel characteristics but which has since moved rapidly upwards among policy priorities. In conclusion, the article argues that ‘active ageing’ rather than ‘lifelong learning’ represents a more promising embracing framework through which to develop learning in retirement and old age.  相似文献   

科技人力资本视角下杰青科学家资助年龄对资助效果的影响——以杰青基金地球科学项目为例     

田人合  郑军卫  张志强  于洁  杨芳娟 《图书情报工作》2019,63(22):91-105

[目的/意义] 杰青基金实施25年来，资助者年龄呈大龄化趋势发展，深入分析该现象对完成杰青基金的影响，对未来杰青基金管理具有重要意义。[方法/过程] 研究以1994-2018年杰青基金地球科学项目为研究对象，构建科研论文产出效率、创新能力和学术影响力三个评价指标，提出"科技人力资本投入-科研产出"理论模型及假设，采用DID模型克服样本选择性偏误所导致的内生性问题，验证理论假设，实现对杰青基金资助年龄异质性的研究。[结果/结论] 实证结果表明：杰青科学家大龄化趋势日趋严重，存在明显的45岁现象；杰青基金实施20年中，支持"资助年龄越大，资助效应越好"假设的比例较低；三个评价指标维度，资助效应最大且资助年龄在39-42岁之间的年份在杰青基金实施20年中所占比例最大。因此，无论从杰青基金设立宗旨、还是从评估结果来看，都应该避免杰青科学家大龄化趋势，扩大对中低龄优秀青年人才的资助。  相似文献   

Elementary school children’s understanding of science: The implementation of an extracurricular science intervention     

《Contemporary educational psychology》2017

The promotion of students’ achievement and competence in the so-called STEM disciplines is one cornerstone of current educational research and practice. In particular, as early as elementary school, the fostering of an adequate understanding of science is a normative goal of science education. It facilitates students’ science learning and enables them to understand the nature and development of scientific knowledge. Based on the relevance of the promotion of young children’s understanding of science, a corresponding science intervention was recently developed and successfully evaluated in a first study under highly controlled conditions. The goal of the present study was to investigate the effectiveness of this intervention when implemented in practice. One hundred seventeen third- and fourth-grade students and 10 trained course instructors participated in this study. We applied a randomized block design with waitlist control groups and repeated measures. The results revealed that children assigned to the intervention compared with children assigned to the waitlist control group showed better inquiry-related methodological competencies (a better understanding of the scientific inquiry cycle and experimentation strategies) and a higher need for cognition. The findings point to the successful implementation of the intervention and are compared with the results of the first study.  相似文献   

Age Factor in Second Language Acquisition     

张浩 《海外英语》2014,(11)

In the second language acquisition, the study focus of linguistics is the influence of age factors which has always been considered as one of the most controversial issues. Some experts hold that the y...  相似文献   

年龄对农民跨期绿色农业技术采纳的影响     

张童朝  颜廷武  仇童伟 《资源科学》2020,42(6):1123-1134

中国农业面临着劳动力老龄化与绿色化转型的双重约束。聚焦于跨期技术属性,本文提出了中国情景下年龄对农民跨期绿色农业技术采纳的倒U形影响假说,进而以秸秆还田为例,采用中介效应模型,利用冀鲁皖鄂4省1372份农民调查数据进行了实证检验。结果发现：①年龄对于农民跨期绿色农业技术采纳的影响效应呈倒U形态势,“中年农民”成为现阶段绿色农业技术扩散的积极力量;②人力资本和风险偏好是年龄影响农民跨期绿色农业技术采纳的重要中介变量,两者的中介效应占年龄总效应的71.94%;③信息化和耕地规模对中青年农民的跨期绿色农业技术采纳具有促进作用;经济价值认知、是否贫困、供水情况、补贴和处罚政策对中老年农民采用跨期绿色农业技术表现出积极影响;社会资本对中青年农民的技术采纳具有负向影响,但有利于中老年农民采纳跨期绿色农业技术。由于年龄较高农民积极采纳跨期绿色农业技术其实是该群体非农就业机会减少而被动“以农为业”的结果,这表明农业生产包括农业资源保护与开发缺乏最为优质的劳动力支撑;另一方面,非农就业的青壮年劳动力由于缺乏务农经历,多年后回归农业又能否承担起农业绿色化转型的责任也值得思考。因此,劳动力老龄化对中国农业短期的影响在于如何把地种好,而长期的潜在威胁依然是谁来种地。  相似文献   

老龄化背景下延长法定退休年龄的思考     

罗倩妮 《顺德职业技术学院学报》2011,9(2):69-73

老龄化步步紧逼,＂银发浪潮＂冲击＂养老大堤＂,当务之急应寻找有效解决之道,维持养老基金财务均衡,保持国家信用以化解老龄化危机。在不改变原有制度的前提下,延长退休年龄不失为一个立竿见影的有效之举,但延长退休年龄对社会稳定、经济发展、劳动就业、个体利益等都会造成一定影响,在决策前必须通盘考虑,权衡利弊,逐步推进。  相似文献   

浅析新媒体时代科技期刊编辑的再定位     

柳春  叶新  陈柳 《大众科技》2011,(11):228-230,213

中国期刊已经进入了新媒体时代的竞争期。数字化发展,融合互通的科技潮流,正使期刊运营的生态环境发生着革命性的变化,面对变化的传媒生态和不断前进的受众,传统科技期刊要想在当前的传媒环境中拥有一席之地,应该办出自己的特色。不断创新发展。要实现这些,编辑的作用是关键要素之一,顺应新媒体时代发展有必要对科技期刊编辑重新定位。  相似文献   

略论技击的构成要素——以冷兵器时代军事需求为背景     

刘宇峰  方金娴 《体育科技文献通报》2011,19(1):127-129

技击概念是什么？是了解技击本身和建立技击与现代武术关系首先要解决的问题.明确技击的构成要素,不仅为进一步研究技击演变提供理论支撑,更将为明确现代技击概念奠定基础.本文采用文献资料法和逻辑推理法对技击文本文献进行研究.阐明冷兵器时代军事背景下,技击是士兵练就的近距离手持器械的杀敌动作.其具备四要素：一、技击的获取过程是练就的,不是无意间的一个动作就能称为技击;二、技击的使用者是士兵,其彰显了技击的军事特征;三、技击的表现形式是近距离手持器械的动作,排斥了脱手类兵械的使用;四、技击的使用目的--杀敌.最后提出技击脱离军阵束缚以后,其使用者、表现形式和使用目的都出现了多元并存局面的结论.  相似文献   

内蒙古地区20一69岁人群BMI特征分析研究     

张国梁  张国芳  樊蓉芸 《湖北体育科技》2011,30(6):663-666

目的：分析内蒙古20-69岁人群BMI特点,采用百分数法评价BMI,寻找超重与肥胖的触发年龄。方法：对5880人数据进行BMI数据分析和曲线拟合分析。结果：①内蒙古20—69岁人群总体、男性、女性BMI分别为24．2±3．48、24．6±3．49、23．8±3．41。总体BMI高于全国平均水平,男性高于女性,超重和肥胖...  相似文献