学会发现问题促进网上学习的真正发生——基于网上学习中发现问题方式的中英比较

发现问题是网上学习真正发生的起点,然而有研究表明,不善于发现问题是我国学习者的一大"软肋",已经严重阻碍了我国学习者网上学习的有效性。本文运用比较研究的方法,对网上学习中发现问题的方式进行了初步研究。对案例课程中网上讨论文本的内容分析显示,中英学习者在发现问题的方式上具有明显差异。对中英差异的认识不仅有助于认识发现问题的方法和规律,也对我国学习者学会在网上学习中发现问题有所启示。     

在职务犯罪案件侦查中运用技术侦查的正当性研究

在职务犯罪日益智能化、科技化的新形势下,技术侦查是一种有效的侦查手段。但技术侦查是以牺牲公民权益为代价的手段,应寻找控制犯罪和保障人权之间的平衡点,对技术侦查运用的正当性进行诠释。该文着重从技术侦查措施设立的必要性和技术侦查在法律规范中的体现这两个方面,对技术侦查的正当性进行探讨。     

通用技术教师转型及专业发展策略

目前,高中新课程通用技术教师大都由其他学科教师转型而来的,在教学中面临着许多的新挑战和困惑,必须研究通用技术课程特点,实现从原有学科向通用技术教师转型,提高适应新课程教学的能力,建立促进教师专业成长的机制,形成专业发展的支持系统。     

贯彻十七大精神 办好高职教育

十七大报告对教育事业发展和改革进行了新的全面的部署,为高等教育事业的发展指明了前进的方向。高等职业教育作为高等教育的重要组成部分,是提高全民综合素质与综合国力的可靠保证之一。因此贯彻十七大精神,办好高职教育尤其是发展新疆少数民族地区高职教育意义非凡,且任重道远。     

我国高校信息化管理体制革新探析

随着我国高校信息化建设的推进,传统的高校信息化管理体制已不能适应高校发展的要求,需要以创新管理理念、重组管理结构、拓展管理职能为目标,以全面的信息化管理为核心增强高校在信息化时代的竞争能力.高校信息化管理体制的革新,必须从明确信息化管理在高校管理体系中的定位、明确信息化管理(CIO模式)的职责与权力、明确信息化管理者的素质及选择标准等途径入手.     

试论基础英语教学中母语迁移的影响

从不同的角度讨论了母语迁移在大学基础英语教学过程中的影响,指出应当合理地利用母语迁移的正效用,努力克服母语迁移的负效用,以促进大学基础英语教学.     

广告在电力服务营销中的应用

由于供电企业对自身的品牌和服务宣传较少,社会上对供电企业仍有很多偏见,部分消费者也对其提供的一些服务内容不了解,针对这个问题探讨现代广告在营销策略中的重要性以及如何将广告与供电企业的特点结合起来,运用到电力服务营销策略中。     

落实科学发展观加强和改进大学生思想道德教育

本文指出坚持用科学发展观对大学生进行思想道德教育具有现实指导意义,并对如何落实科学发展观,加强和改进大学生思想道德教育进行了探讨。     

Three-dimensional tracking of GLUT4 vesicles in TIRF microscopy

TIRF microscopy has provided a means to view mobile granules within 100 nm in size in two dimensions. However quantitative analysis of the position and motion of those granules requires an appropriate tracking method. In this paper, we present a new tracking algorithm combined with the unique features of TIRF. Firstly a fluorescence correction procedure was processed to solve the problem of fluorescence bleaching over time. Mobile granules were then segmented from a time-lapse image stack by an adaptive background subtraction method. Kalman filter was introduced to estimate and track the granules that allowed reducing searching range and hence greater reliability in tracking process. After the tracked granules were located in x-y plane, the z-position was indirectly inferred from the changes in their intensities. In the experiments the algorithm was applied in tracking GLUT4 vesicles in living adipose cells. The results indicate that the algorithm has achieved robust estimation and tracking of the vesicles in three dimensions.     

Mesoscopic analysis of the utilization of hardening model for a description of softening behavior based on disturbed state concept theory

Mesoscopic characteristics of a clayey soil specimen subjected to macroscopic loading are examined using a medical-use computerized tomography （CT） instrument. Disturbed state concept （DSC） theory is based on the utilization of the hardening model. DSC indirectly describes material behavior by claiming that the actual response of the material is expressed in terms of the relative intact （RI） response and the fully adjusted （FA） response. The occurrence of mesoscopic structural changes of material has similarities with the occurrence of a macroscopic response of the material under loadings. In general, the relative changing value of a softening material is three to five times more than that of a hardening material. Whether special zones exist or not in a specimen cross section does not affect the following conclusion： hardening material and softening material show mechanical differences with CT statistical indices values prominently changing, and the change is related to the superposing of a disturbance factor. A new disturbance factor evolution function is proposed. Thus, mesoscopic statistical indices are introduced to describe macroscopic behavior through the new evolution function. An application of the new evolution function proves the effectiveness of the amalgamation of a macroscopic and a mesoscopic experimental phenomenon measurement methods.