提升公信度

中国的广播电视大学走过了三十年的发展历程。伴着风风雨雨,电大人洒下了一路辛勤的汗水,也留下了一路创业的歌声。“而立之年”的广播电视大学,肩负着“现代远程教育”,“推进全民学习、终身学习”的重要使命开启了新的航程。     

Synchronization criteria for coupled stochastic neural networks with time-varying delays and leakage delay

This paper proposes new delay-dependent synchronization criteria for coupled stochastic neural networks with time-varying delays and leakage delay. By constructing a suitable Lyapunov–Krasovskii's functional and utilizing Finsler's lemma, novel synchronization criteria for the networks are established in terms of linear matrix inequalities (LMIs) which can be easily solved by using the LMI toolbox in MATLAB. Three numerical examples are given to illustrate the effectiveness of the proposed methods.     

试论广告的健康传播功能及其异化

本文对广告的健康传播功能及其异化趋向进行客观分析,并探求解决该问题的策略.     

Relative appendicular skeletal muscle mass is associated with isokinetic muscle strength and balance in healthy collegiate men

There are few studies on the relationship between skeletal muscle mass and balance in the young ages. We investigated the relationship between appendicular skeletal muscle mass, isokinetic muscle strength of lower extremity, and balance among healthy young men using relative skeletal muscle index. Thirty men were grouped according to relative appendicular skeletal muscle mass index: higher skeletal muscle group (n = 15) and lower skeletal muscle group (n = 15). Static and dynamic balance abilities were measured using the following: a test where participants stood on one leg with eyes closed, a modified Clinical Test of Sensory Interaction on Balance (mCTSIB) with eyes open and eyes closed, a stability test, and limits of stability test. The muscle strength of lower extremities was measured with an isokinetic analyser in hip, knee, and ankle joints. Participants with higher appendicular skeletal muscle mass were significantly more stable in maintaining dynamic balance than those with lower appendicular skeletal muscle mass. Moreover, appendicular skeletal muscle mass index was positively correlated with dynamic balance ability. Participants with higher appendicular skeletal muscle mass had stronger strength in the lower extremity, and there were significant differences in the isokinetic torque ratios between groups. From these results, it can be inferred that higher appendicular skeletal muscle mass relates to muscle strength and the alteration in the peak torque ratio of the lower extremity, contributing to the maintenance of balance.     

毛泽东对中国社会主义工业化道路的贡献

建国后，为使中国尽快走向富强，毛泽东结合中国社会主义建设的实践，对中国社会主义工业化道路进行了艰辛的探索，形成了关于中国社会主义工业化道路的思想。其实质是重工业、农业、轻工业的关系，这一思想至今仍在社会主义现代化建设中发挥着指导作用。     

定位感言

何为定位?词典中这样解释:"用仪器对物体所在位置进行测量或者经测量确定的位置。"关于广播电视大学的"定位"问题,是一个时期以来的热门话题。明确广播电视大学的"定位",说得通俗一点,就是在高校林立的环境下,找准广播电视大学的"位置"。     

《电气控制与PLC》多媒体辅助教学软件的开发与研制

针对《电器控制与PLC》课程的特点,选用Flash5作为主要工具,开发了此课程的辅助教学软件,具有操作简单、生动、直观等特点.     

乌灵参对贫血大鼠造血功能的影响

给失血50％的大鼠灌服乌灵参及FeSO_4(加VitC)10d,每隔1d检查血象1次,共12次.结果表明,给药期间RBC和Hb数量的增长率,乌灵参组明显地高于对照组,但与FeSO_4组之间无显著差异.乌灵参还明显地缩短RBC和Hb恢复至放血前90％的水平所需要的时间.     

坐热冷板凳

正如任何一种比赛都必须遵守相应的规则一样,进行科学研究也必须遵守学术规则,否则,学术研究将无法开展,学术也将不称其为学术了。     

消息报道

插图具有形象、直观的特点，在科技期刊中广泛使用。针对作者提供的科技期刊论文图稿中常出现的问题，笔者初步总结了图稿编辑加工时应注意的几个问题，以供科技期刊编辑工作者参考。