高师地理课程改革研究

分析了高师地理课程结构改革的机遇 ,剖析了高师地理课程结构存在的问题 ,提出了高师地理课程改革的思路与方案     

培养专业英语复合型人才教学探讨

为适应新时代的要求高等学校英语专业应改变过去单纯学习语言的倾向 ,开始向培养复合型、应用型外语人才的方向发展 .为英语教学探索出一条符合中国国情的外语教学新路     

田径裁判员的智力结构

针对与田径裁判工作密切相关的观察力 ,记忆力 ,思维力三个方面对田径裁判员应具备的智力结构进行了简要论述     

提高抽送黄河水用泵寿命的重要途径

从保证抽送黄河水用泵（以下简称抽黄泵）的寿命和工作可靠性出发，提出了抽黄泵性能参数选择的原则：限制抽黄泵的单级扬程Ｈ；限制抽黄泵单级扬程Ｈ与转速ｎ的乘积Ｈｎ值。并给出抽黄泵性能参数的Ｈ·ｎ－Ｑ关系曲线和泵的比转速ｎ＿ｓ与单级扬程Ｈ的关系曲线。     

英语专业师范生语音模式规范化的必要性

语音是学任何一门语言的基础。语音的规范化直接影响学习者语言的学习效果，因此对英语专业师范生的语音模式要进行严格规范。     

多片生成元集分形介质层的波反射

该文研究了多片任意生成元集（即更加广义的Ｃａｎｔｏｒ集）分形介质层的垂直入射及斜入射的反射透射谱，给出了这种情况下的一般自相似递推谱算法．这种算法能得到任意级次、任意结构及任意入射角条件下的振幅谱．文中所给出的一类反射谱是一种准周期自相似谱，有望在电子对抗、薄膜光学及光电器件等重要领域获得应用．     

Evaluation of the hepatotoxicological effects of a drug in an in vivo/in vitro model

Both in vivo and in vitro models have certain disadvantages for the study of the chronic hepatotoxicity of drugs. The aim of this work was to evaluate a new approach based on an in vivo/in vitro model. After chronic in vivo treatment of rats with Vincamine and Vindeburnol (an eburnamenine derivative which exhibits hepatotoxic properties in man) liver cells were isolated, and functional and metabolic disorders (metabolic utilization of fructose and protein biosynthesis) were studied to determine injury. The results showed no modification of blood parameters, but a direct relationship between the dose of Vindeburnol administered in vivo and the metabolic disorders observed in vitro, evidencing the high sensitivity and reliability of this model.     

Adrenocortical metabolism and plasma corticosterone in soman intoxicated rabbits

Summary The organophosphate neurotoxin soman produced impairments in adrenocortical RNA and protein metabolism. Fasciculate and reticular cell RNA and protein contents were supporessed with sublethal to acutely lethal dosages (20, 30 and 40 g/kg, s.c.) during the acute excitatory phase of intoxication and at 6–8 h post injection. All three dosages produced ca 90% inactivation of plasma cholinesterase. A transient elevation of plasma corticosterone occurred with 20 g/kg soman whereas there was a protracted increase with 30 g/kg. Corticosterone was not significantly elevated with 40 g/kg, but death occurred at 13±4 min. Thus, the magnitude and/or nature of soman-induced metabolic impairments does not appear to prevent adrenal activation.Supported by US Army Medical Research and Development Command Contract DAMD 17-81-C-1202.     

浅论温室效应及其灾害和对策

本文概略综述了近年来世界争论的“地球危机”问题。由于人类的活动,大气中二氧化碳等增加,气候恶化,地球升温,导致一系列重大自然灾害,严重地威协着人类。本文特对地震灾害进行了分析,温室效应对地球表面的升温,虽不至于直接影响到地震的孕育和发生,但是观测事实表明,环境因子太阳活动和气象与地震之间存在某种联系,对地震的发生常常起有调制和触发的作用,大气变化和太阳活动会影响到地震发生的频度和强度。为配合“国际减灾十年”活动,本文亦讨论了对策问题。     

NOVELL局域网的操作使用维护经验点滴

介绍了ＮＯＶＥＬＬ网络的操作维护技巧．