终身教育视野下的教师教育观

终身教育思想对全球教师教育带来深刻影响,人们从此深刻认识到教师教育的连续性和终身性。通过对终身教育理念倡导下教师教育观的解读,使我们更加深刻认识了教师教育的本质和目的。从终身教育思想的视野下来审视我国教师教育的现状,不难看出我国的教师教育存在诸多问题,笔者想通过这些问题,让人们来共同关注我国的教师教育及其发展。     

对多媒体教学的理性思考

现代教育技术在高等教育教学中的运用越来越为广泛,多媒体教学凭借其形象、生动及提高教学效率等优势在高校教学中所占比重日趋扩大,当然也为教学带来了一定的影响。本文将在阐述多媒体教学的优势的同时,将对多媒体教学给高校教学带来的问题进行探析。     

Basic fibroblast growth factor alleviates brain injury following global ischemia reperfusion in rabbits

The aim of this study was to explore the protective effect of basic fibroblast growth factor (bFGF) on brain injury following global ischemia reperfusion and its mechanisms. Brain injury following global ischemia was induced by four vessels occlusion and systemic hypotension. Twenty-four rabbits were randomized into three groups: group A, only dissection of vessels; group B, intravenous infusion of normal saline after reperfusion for 6 h; group C, 30 μg/kg bFGF injected intravenously at the onset of reperfusion, then infused with 10 μg/(kg·h) for 6 h. Serum neuron specific enolase (NSE), S-100B, tumor necrosis factor-α(TNF-α), interleukin-1 (IL-1), interleukin-8 (IL-8) were measured before ischemia, 30 min after ischemia, 0.5, 1, 3, 6 h after reperfusion. Brain water content was determined and cerebral histopathological damages were compared. NSE and S-100B were increased 1 h after reperfusion and reached their peaks 6 h after reperfusion, but were much higher in group B than those in group C 3, 6 h after reperfusion. In groups B and C, TNF-a was increased after ischemia and IL-1 and IL-8 were increased significantly 0.5 h after reperfusion, then reached their peaks 6 h, 3 h, 6 h after reperfusion respectively. TNF-a and IL-8 at the time points of 1 h and 3 h and IL-1 at 3 h and 6 h in group C were correspondingly lower than those in group B. These indices in group A were nearly unchanged. There were less severe cerebral histopathological damages in group C compared with group B, but no difference in brain water content. It could be concluded that bFGF alleviates brain injury following global ischemia and reperfusion by down-regulating expression of inflammatory factors and inhibiting their activities.     

对举重"单屈式"预蹲制动技术的辨析

运用运动生物力学理论与方法,分析举重“单屈式”预蹲制动技术及其产生认识根源,有助于形成正确的技术理念,掌握正确的预蹲制动技术;同时提出改进和提高我国挺举技术的建议。     

从终身体育现状谈高校体育教育改革

采用问卷调查法 ,对广西 6所高校在校大学生的终身体育现状进行调查分析 ,了解当代大学生终身体育状况的形成与发展趋势 ,提出了当前高校体育教育改革之建议。     

影响篮球裁判员正确判罚值的主要因素

采用问卷调查法和常规统计法，对影响篮球裁判员正确判罚值的主要因素进行探析。结果发现，主要因素有篮球裁判员的专业理论知识、临场心理素质、职业道德等。     

普通高校游泳课教学现状调查与改革研究

本文对普通高校游泳课教学的现状进行了调查与分析,指出了开设游泳课过程中在教学原则、教学方法、组织管理、课外锻炼与教学效果方面存在的具体问题,并依据教育、教学理论进行了游泳课改革的分析研究。     

数字电子技术实验教学的改革与探索

针对数字电子技术实验中引入EDA教学手段后出现的数电实验与嵌入式实验相重叠并引起一系列矛盾的问题,对各个实验领域进行了分析,并提出项目教学法和层次教学法相结合的实验教学模式.以项目设计为主线、以阶段递进的方式进行实验内容安排、以平时成绩为主的实践性考核为评价手段的教学模式进行实验改革.实践证明,学生的创新能力、问题分析能力等得到了提高,达到了教学目的.     

比干·比干庙·林姓

一在太行东麓、卫河之滨、牧野大地上,有一座耿耿正气的忠臣古庙——比干庙。它就是世界林姓宗祖、我国历史上第一位忧国恤民、以死谏君的忠臣比干的茔葬地。它位于新乡市东北20公里处,卫辉市境内的顿坊店乡。比干因规谏获罪,被剖心致死后,其子改为林姓,故比干庙又是中国林姓家     

蟹及其匡、螯跪、脐的名称由来

蟹先秦典籍里频频涉蟹:《周易·说卦》传曰“为鳖,为蟹,为蠃(通螺),为蚌,为龟”,把蟹列为有着坚硬外壳的水产动物一类;《尚书·周书·王会》曰成王时“海阳献大蟹”,《山海经·海内北经》曰“大蟹在海中”,都提到了海里产大蟹;《国语·越语》曰“今其稻蟹不遗种”,吴国水稻田里的蟹吃光了稻谷,连种子都没有剩下来;《庄子·秋水》曰“虷(蚊子幼虫,又名孑孓)、蟹与科斗(即蝌蚪)”.