关于远程教育土木工程CAD课程教学的思考

本文主要阐述了远程教育土木工程CAD课程教学中存在的和不能忽视的问题,希望能对该课程教学改革有所帮助.     

细胞膜Na+-K+主动输运过程的热力学分析

研究分析了Na^ -K^ 在跨膜主动输运过程中，细胞能量(由ATP分解提供)在各阶段的耗散情况．并且把ATP酶视为一个子系统，探讨了其在一个循环中发生的生物物理过程的规律性，对于深入了解细胞生命活动的内在机制提供了一种有益的研究方法。     

远程开放教育成本与效益分析

远程开放教育运用广播电视和计算机网络多媒体技术,使受教育者的数量无限,与国家的“科教兴国”、“全面学习,终身学习”的教育战略相符。但是新技术投资的成本高,其效益的估算难,且如何减少成本,提高效益是有待研讨的课题,需要认真进行分析。一、远程开放教育成本核算的重要意     

Relative age and birthplace effect in Japanese professional sports: a quantitative evaluation using a Bayesian hierarchical Poisson model

Relative age effect (RAE) in sports has been well documented. Recent studies investigate the effect of birthplace in addition to the RAE. The first objective of this study was to show the magnitude of the RAE in two major professional sports in Japan, baseball and soccer. Second, we examined the birthplace effect and compared its magnitude with that of the RAE. The effect sizes were estimated using a Bayesian hierarchical Poisson model with the number of players as dependent variable. The RAEs were 9.0% and 7.7% per month for soccer and baseball, respectively. These estimates imply that children born in the first month of a school year have about three times greater chance of becoming a professional player than those born in the last month of the year. Over half of the difference in likelihoods of becoming a professional player between birthplaces was accounted for by weather conditions, with the likelihood decreasing by 1% per snow day. An effect of population size was not detected in the data. By investigating different samples, we demonstrated that using quarterly data leads to underestimation and that the age range of sampled athletes should be set carefully.     

理解:开放、融合与扩充--试析加达默尔诠释学中的理解问题

加达默尔的诠释学从一个全新的角度论述了理解问题,使哲学诠释学成为一个独立的哲学流派,在现代西方哲学史上产生了巨大的影响。他认为理解是此在本身的存在方式;理解具有历史性;理解按其本性乃是一种效果历史事件,而视域融合又是对效果历史的展示和具体说明。因此,理解效果历史原则是把握加达默尔理解问题的关键。     

汉语"道歉"话语模式

道歉是交际中的一种补救性施事言语行为，也是一种礼貌的社会行为。其基本功能是为一项冒犯行为提供补救办法，恢复社会平衡与和谐。从语言形式来看，道歉具有语义句法程式化和规约化的普遍特征。本用语篇补全测试的问卷形式通过对汉语中道歉行为实施的调查、对所选策略进行了分类统计，结果表明道歉的话语模式包括多种策略和手段的组合，但策略的选用在很大程度上受到如权势、距离等因素的制约，说明道歉行为对化等因素的依赖。     

构建以学习为中心的远程开放教育管理机制

远程开放教育是利用网络技术、多媒体技术等现代信息技术手段开展起来的新型教育形式。在“人才培养模式改革和开放教育试点”工作之中,笔者发现远程开放教育的管理机制的改革调整势在必行。本文对远程开放教育管理模式、组织结构、教学策略等管理体制做了有益的探讨。     

One hundred and fifty years of sprint and distance running – Past trends and future prospects

Sprint and distance running have experienced remarkable performance improvements over the past century. Attempts to forecast running performances share an almost similarly long history but have relied so far on relatively short data series. Here, we compile a comprehensive set of season-best performances for eight Olympically contested running events. With this data set, we conduct (1) an exponential time series analysis and (2) a power-law experience curve analysis to quantify the rate of past performance improvements and to forecast future performances until the year 2100. We find that the sprint and distance running performances of women and men improve exponentially with time and converge at yearly rates of 4% ± 3% and 2% ± 2%, respectively, towards their asymptotic limits. Running performances can also be modelled with the experience curve approach, yielding learning rates of 3% ± 1% and 6% ± 2% for the women's and men's events, respectively. Long-term trends suggest that: (1) women will continue to run 10–20% slower than men, (2) 9.50 s over 100 m dash may only be broken at the end of this century and (3) several middle- and long-distance records may be broken within the next two to three decades. The prospects of witnessing a sub-2 hour marathon before 2100 remain inconclusive. Our results should be interpreted cautiously as forecasting human behaviour is intrinsically uncertain. The future season-best sprint and distance running performances will continue to scatter around the trends identified here and may yield unexpected improvements of standing world records.     

中国现代远程教育质量论略

远程教育的教学质量应该由开展远程教育的机构、参加远程教育的学习者、社会来认可,而三者对教育质量的标准的认同必须统一。认定远程教育的质量标准是一项较为复杂的工作,需要经过科学研究,由国家权威部门制定或由行业制定国家认可的标准,同时由相关部门组成专家对开展远程教育的机构、学院进行经常性的评估。     

建构远程开放教育中自主学习的模式

建构基于网络环境的自主学习模式对现代远程开放教育的教学理念和教学模式的改革意义重大。本文从建构主义理论出发,结合开放教育自主学习的特点,设计了包括交互式、协作式、个别化和自我监控学习过程在内的复合式自主学习模式。