基于学生为中心的多媒体教学平台的设计

教育信息化的发展使课堂教学从传统模式向多媒体模式发展,网络的发展使多媒体教学向网络方向发展.本文是笔者开发《工厂供电》课程网络教学系统的组成部分,通过对网络教学系统总体结构的介绍、网络教学平台各组成部分的设计来阐明网络教学平台的开发方法和过程.     

试析当前湖北劳动力素质结构

近年来，湖北经济增长率结束了长时期的下降而开始出现回升，经济发展的状况对全省劳动力就业形势构成了较大影响。表现为经济结构的调整带来了就业形势的变化，并进而影响劳动力素质结构的变化。     

顺德产业结构演变分析

改革开放以来,顺德经济发展迅猛,引起人们的关注。根据顺德第三产业变化趋势,将顺德产业结构演变分为三个阶段,并对各阶段的特点及原因进行分析。     

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。     

黄体生成素和绒毛膜促性腺激素受体的结构和功能

本文介绍黄体生成素和绒毛膜促性腺激素（hCG）受体的结构和功能的研究进展。     

高校现金流量表编制的依据与编制方法初探

随着我国高等教育事业的发展,高校财务活动已不再是简单的取得财政、事业收入,拨缴规定款项,和核算相关支出。作为会计主体,高校会计核算的内容正逐步走向多样化、复杂化。鉴于这种情况,应尽快在高校财务报表体系中增加现金流量表,全面反映一个学校一定会计期间现金流入、流出和净增加(减少)情况,以改变现行高校会计信息披露不完整,决策依据不充分的现状。     

试谈语言接触中的借用现象

民族之间的贸易往来、战争征服、迁徙杂居、文化交流等各种形式的接触,都必然会引起语言的接触。无论是哪种形式的接触,无论程度怎样、性质如何,一经接触必然会相互影响,这表现在语言成分的借用和吸收方面。借用现象在语言接触中是一种普遍的现象,因为任何一种语言都不是孤立的。借用现象无论对借方还是被借方都产生过重要的影响。文章从借用的形式、借用的趋向、借用的作用及影响对语言接触中的借用现象进行论证。     

数字视频制作网络平台建设方案

阐述了数字视频制作网络平台建设的基本原则和关键技术。     

关于我国理工科大学文科教育的几点认识

在理工科大学生中进行文科教育,是培养21世纪的社会主义建设者和接班人的重要途径,高素质的人才是重要的战略资源,直接关系到21世纪中国的面貌,决定着中国在世界中的地位、前途和命运。加强文科教育,适应了日益明显的自然科学、社会科学和人文学科交叉综合的趋势,有利于形成适应科学、工业和文化发展的思维方式和造就能够文理结合、综合创新的复合型人才。     

Body composition of female road and track endurance cyclists: Normative values and typical changes

The aims of this study were to describe normative values and seasonal variation of body composition in female cyclists comparing female road and track endurance cyclists, and to validate the use of anthropometry to monitor lean mass changes. Anthropometric profiles (seven site skinfolds) were measured over 16 years from 126 female cyclists. Lean mass index (LMI) was calculated as body weight?×?skinfolds^?x. The exponent (x) was calculated as the slope of the natural logarithm of body weight and skinfolds. Percentage changes in LMI were compared to lean mass changes measured using dual-energy X-ray absorptiometry (DXA) in a subset of 25 road cyclists. Compared to sub-elite and elite cyclists, world class cyclists were (mean [95% CI]) 1.18?kg [0.46, 1.90] and 0.60?kg [0.05, 1.15] lighter and had skinfolds that were 7.4?mm [3.8, 11.0] and 4.6?mm [1.8, 7.4] lower, respectively. Body weight (0.41?kg [0.04, 0.77]) and skinfolds (4.0?mm [2.1, 6.0]) were higher in the off-season compared to the early-season. World class female road cyclists had lower body weight (6.04?kg [2.73, 9.35]) and skinfolds (11.5?mm [1.1, 21.9]) than track endurance cyclists. LMI (mean exponent 0.15 [0.13, 0.18]) explained 87% of the variance in DXA lean mass. In conclusion, higher performing female cyclists were lighter and leaner than their less successful peers, road cyclists were lighter and leaner than track endurance cyclists, and weight and skinfolds were lowest early in the season. LMI appears to be a reasonably valid tool for monitoring lean mass changes.