Evaluation of usage of virtual microscopy for the study of histology in the medical,dental, and veterinary undergraduate programs of a UK University          下载免费PDF全文

Margaret K. Gatumu  Frances M. MacMillan  Philip D. Langton  P. Max Headley  Judy R. Harris 《Anatomical sciences education》2014,7(5):389-398

This article describes the introduction of a virtual microscope (VM) that has allowed preclinical histology teaching to be fashioned to better suit the needs of approximately 900 undergraduate students per year studying medicine, dentistry, or veterinary science at the University of Bristol, United Kingdom. Features of the VM implementation include: (1) the facility for students and teachers to make annotations on the digital slides; (2) in‐house development of VM‐based quizzes that are used for both formative and summative assessments; (3) archiving of teaching materials generated each year, enabling students to access their personalized learning resources throughout their programs; and (4) retention of light microscopy capability alongside the VM. Student feedback on the VM is particularly positive about its ease of use, the value of the annotation tool, the quizzes, and the accessibility of all components off‐campus. Analysis of login data indicates considerable, although variable, use of the VM by students outside timetabled teaching. The median number of annual logins per student account for every course exceeded the number of timetabled histology classes for that course (1.6–3.5 times). The total number of annual student logins across all cohorts increased from approximately 9,000 in the year 2007–2008 to 22,000 in the year 2010–2011. The implementation of the VM has improved teaching and learning in practical classes within the histology laboratory and facilitated consolidation and revision of material outside the laboratory. Discussion is provided of some novel strategies that capitalize on the benefits of introducing a VM, as well as strategies adopted to overcome some potential challenges. Anat Sci Educ 7: 389–398. © 2013 American Association of Anatomists.  相似文献   

我国优秀女排运动员心脏形态与功能的研究     

王广峰  王朝群  李骁君  张晓东  卢成义  姜喜波  任日辉  胡斌 《山东体育学院学报》2002,18(1):40-42

采用超声心动技术对我国优秀女排运动员安静状态、运动状态下心功能指标进行测量，并以体校业余女排运动员作为对照组，结果表明：优秀女排运动员具有左室腔扩大和心肌收缩能力强的特点。  相似文献   

针刺足三里穴对运动小鼠红细胞形态、血红蛋白浓度的影响     

朱梅菊  屈菊兰  李红 《广州体育学院学报》2004,24(1):31-32,41

运用扫描电镜和全自动血球分析仪研究针刺足三里穴对运动小鼠红细胞形态和血红蛋白浓度的影响 ,结果发现运动组小鼠红细胞畸形率显著高于正常组、针刺组和假针刺组 (均P <0 0 1) ,针刺组小鼠红细胞畸形率分别高于正常组和假针刺组 (均P <0 0 1) ,正常组与假针刺组小鼠红细胞畸形率差异无显著性 (P >0 0 5 ) ,运动组小鼠HGB浓度显著低于正常组、针刺组和假针刺组 (均P <0 0 1) ,针刺组、正常组和假针刺组小鼠红细胞HGB浓度差异无显著性 (P >0 0 5 )。表明针刺足三里穴能明显降低大强度训练小鼠红细胞畸形率 ,提高HGB浓度 ,为针刺足三里穴在体育实践中的运用提供了实验依据。  相似文献   

不同水平武术套路运动员身体形态的比较研究     

刘同为  崔永胜  柯小剑 《体育科研》2004,25(1):53-55

通过测量不同水平武术套路运动员身体形态的指标并加以分析,结果显示:武英级运动员与一级运动员在骨盆宽和身体重心指标上,存在显著性差异,但趋势相反;男子武英级运动员在身体围度、体重、身高、克托莱指数上均显著大于一级运动员;女子武英级运动员的体脂百分比比一级运动员小。  相似文献   

浅析经典英文广告的语言特点     

钱玉彬  程辉 《洛阳师范学院学报》2009,28(1):130-132

在商品经济中,广告对于提高商品知名度、扩大商品销售量的作用尤其突出,也是打造国际品牌的必要桥梁。随着经济全球化的不断发展,商品的英文广告设计日益流行,学习和借鉴经典英文广告的语言特点对于成功的广告设计显得十分必要。本文结合大量实例,就经典英文广告的语言特点,从"词"、"句"、"修辞"等角度进行简要的评析。  相似文献   

熔盐法合成无机粉体材料   总被引：1，自引：0，他引：1  

周健  焦宝祥 《常熟理工学院学报》2008,22(2):71-76

熔盐法是一种制备无机粉体材料的新方法．本文简要说明了熔盐合成法的原理和特点,从合成颗粒状氧化物粉体、片状氧化物、针棒状氧化物等方面综述了该方法的研究进展,并概述了熔盐合成法尚存在的问题。  相似文献   

Iris Localization Algorithm Based on Improved Generalized Symmetry Transform     

左坤隆  刘文耀  朱昊  王晓东 《天津大学学报(英文版)》2004,10(4):259-264

Accuracy and fastness of iris localization are very important in automatic iris recognition. A new fast iris localization algorithm based on improved generalized symmetry transform (GST) was proposed by utilizing iris symmetry. GST was improved in three aspects: 1 ) A new distance weight function is defined. The new weight function, which is effective in iris localization, utilized the characteristic of irises that the iris is a circular object and it has one inner boundary and one outer boundary. 2) Each calculation of the symmetry measurement of a pair of symmetry points was performed by taking one point of a pair as the starting point of the transformation. This is the most important reason for fast iris localization, due to which, repetitious computation was largely excluded. 3) A new phase weight function was proposed to adjust GST to locate circle target much better because the inner part of iris is darker than the outer part. The edge map of iris image was acquired and GST was only implemented on the edge point, which decreased computation without loss of accuracy. The modification of distance weight function and phase weight function leads to the accuracy of localization, and other ideass peed up the localization. Experiments show that the average speed of new algorithm is about 7.0-8.5 times as high as traditional ones including integro-differential operator and Hough transform method.  相似文献   

四川柴胡属植物的花粉形态及系统学意义     

王长宝  何兴金  马永红  孟德玉 《绵阳师范学院学报》2004,23(5):74-76,81

通过光镜(LM)观察了四川柴胡属植物14种(变种)的花粉形态，结果表明：该属植物的花粉已经发生了明显分化。主要有菱形，椭圆形，矩形三种类型以及它们之间的过渡类型。最后分析了柴胡属植物的花粉进化趋势并探讨了种间亲缘关系。  相似文献   

基于数学形态学的锅炉火焰图像骨架提取   总被引：2，自引：0，他引：2  

华彦平  于向军  吕震中  Hua Yanping  Yu Xiangjun  Lü Zhenzhong 《东南大学学报》2003,19(4):352-354

本基于二值数学形态学，建立了数字图像骨架提取方法，并给出了相应的算法．同时，对结构元素序列进行了研究，结构元素序列的选取是骨架提取的关键．最后，应用数字图像骨架提取算法，对锅炉火焰图像进行了处理．处理结果表明，所提取的骨架能够准确地描述火焰图像的几何形状．  相似文献   

现代汉语中"子"的作用   总被引：1，自引：0，他引：1  

杨秋玲 《焦作大学学报》2004,18(3):39-40

“子”在汉语中出现的频率极高，它是一个组词能力非常强的具有语法意义的名词词缀。名词后缀“子”蕴涵着极其丰富的化内容，它不仅有满足结构要求的作用，还有构成语形、区别词义、转换词性和表达情感色彩等作用。  相似文献