食品微生物学优质课程建设的探索与实践

介绍食品微生物学优质课程建设的经验和体会.为提升食品微生物学教学效果和教学质量,从抓好网络教学资源和教材等教学基本建设,优化课堂教学体系、改进课堂教学方法、强化实践教学和完善课程考核方式等方面进行了探索和实践,取得较为显著的成效.     

基于微信公众平台的医学微生物学微型移动课程资源的建设与实践

随着移动技术的发展和网络的普及,利用移动终端进行微课程的学习将成为新的学习方式。本文尝试利用微信公众平台进行医学微生物学微型移动课程的实践,利用碎片化时间进行移动教学,以弥补传统课堂教学的不足。对微信公众平台在医学微生物微课程教学中的教学效果、优势和存在的问题等进行评价。阐明了基于微信公众平台的医学微生物学微型移动课程在教学领域有着广阔的发展前景。     

细胞生物学网络课程的构建与实施评价

在现代教育技术的推动下,网络课程已经成为现代教育的新趋势,它不仅克服了传统课堂教学的不足,而且增添了很多新的手段和内容。该文介绍了细胞生物学网络课程建设的体系,主要是多媒体课件及录像、在线课程学习、教学文件及相关资源等四大模块,并且通过网络课程的具体实践,实现了细胞生物学课程的网络教育和多媒体教学以及＂网络互动＂的教学模式。网络课程在一定程度上解决了高校普遍存在的学时少内容多、教师少学生多的矛盾,给学生的自主学习和师生交流提供了一个良好的平台。细胞生物学网络课程实施后,受到了省内近十所高校专家的高度评价,学生对本门课程教学的满意度也达到了93%以上,并且学生考试成绩优秀者所占比例也较网络课程实施前有显著提高,取得了明显的教学效果。     

浅谈多媒体网络技术的应用对课堂教学的影响

近些年来,随着网络教学环境的开发建设,和基于网络的教学研究,多媒体网络技术在我国越来越普及,应用越来越广泛,并且其在课堂教学中的地位越来越明显。教师在课堂教学中如何合理又有效的使用多媒体网络技术,这就需要教师对多媒体网络技术对课堂教学中的影响有着深刻的认识。本文试从多媒体网络技术对传统教学方法的影响;与教师在课堂教学中的关系;和对学生兴趣及课堂教学中的气氛几个角度分析多媒体网络技术的应用对于课堂教学的影响。     

医学网络课程设计原则与评价方法

网络技术的发展,带动了医用教学领域中的网络课程的产生。作为一种新兴的教学模式,医学网络课程从设计制作技术到教学理念和实现方法都与传统医学教育模式有着很大的区别,此文从医学网络课程的特点出发,着重论述了其设计原则,并制定了评价标准,为我们今后从事医学网络教学设计提供指导并预测了医学网络课程的发展方向。     

世界大学城空间教学在《有机化学》课程中的教学初探

如今,信息化高速发展,教育信息化的产物——网络课程也在高职课程教学中得到了广泛应用。世界大学城空间教学即以网络技术为核心的一种新型课程教学方式。《有机化学》课程是一门理论性较强的课程,借助网络教学,有利于该课程教学的开展。就世界大学城空间教学在《有机化学》课程中的教学,本文作了初探。     

将MOOCs技术应用于《微生物学》教学中的建议

在当前数字化、信息化流行的背景下,结合微生物学课程的特点,提出将MOOCs技术用于微生物学课程的教学中。建议将微生物学各模块知识中的基础知识、理论、技术做成短小精悍的微视频网络课程,由学生自行完成学习并在线考核,课堂上由老师设置问题让学生讨论以此巩固深化学生自学完成的知识,进行现场打分后,综合网络考核得出最终的分数。     

基于移动学习的生物化学课程混合式教学改革初探

随着移动网络技术的迅猛发展,其教育功能逐步被挖掘,展现出了良好的移动学习应用的前景。本文通过建设基于“浙江线上大学APP+课程微信订阅号”的学习资源,构建了基于移动学习的混合式教学模式,并应用于生物化学课程的教学改革实践中;通过课堂教学实践和调查反馈显示,将移动学习应用于混合式教学是受学生欢迎、教学效果良好的教学模式。     

从新课程标准谈生物学课堂教学目标表述

新世纪 ,我们迎来了新一轮的课程改革。在教学目标的改革上采用了具体、明确的行为动词来表述 ,克服传统教学目标表述的含糊性和不确定性 ,使课程目标实现了具体化。因此 ,在生物学教学工作中 ,如何按新课程标准进行课堂教学目标的表述 ?这将是我们每一位生物学教师面临的又一新的教学技术问题。本文就这一问题作些粗浅阐述。1　生物学课堂教学目标的概念教学目标是学生通过教学活动后要达到的预期学习结果或标准。教学目标按水平层次分为 :培养目标、课程目标、单元目标及课堂教学目标。前者依次是后者的上位目标 ,它一般具有宽泛性和概括…     

卫生职业学校医用化学课程实验方法探讨

根据卫生职业学校的课程教学安排和实际课堂的开展情况,讨论了医用化学课程的实验教学方法。提出了对实验课程教学进行改进的一些措施。同时,分析了理论课堂教学的跟进策略。     

Recent advances in the study of Kaposi's sarcoma-associated herpesvirus replication and pathogenesis

It has now been over twenty years since a novel herpesviral genome was identified in Kaposi's sarcoma biopsies. Since then, the cumulative research effort by molecular biologists, virologists, clinicians, and epidemiologists alike has led to the extensive characterization of this tumor virus, Kaposi's sarcoma-associated herpesvirus(KSHV; also known as human herpesvirus 8(HHV-8)), and its associated diseases. Here we review the current knowledge of KSHV biology and pathogenesis, with a particular emphasis on new and exciting advances in the field of epigenetics. We also discuss the development and practicality of various cell culture and animal model systems to study KSHV replication and pathogenesis.     

The structure, reproduction and taxonomy of Vidalia and Osmundaria (Rhodophyta, Rhodomelaceae)

Comprises species occurring mostly in subtidal habitats in tropical, subtropical and warm-temperate areas of the world. An analysis of the type species, V. spiralis (Sonder) Lamouroux ex J. Agardh, a species from Australia, establishes basic characters for distinguishing species in the genus. These characters are (1) branching patterns of thalli, (2) flat blades that may be spiralled on their axis, (3) width of the blade, (4) primary or secondary derivation of sterile and fertile branchlets and (5) position of sterile and fertile branchlets on the thalli. Application of the latter two characters provides an important basic method for separation of species into three major groups. Osmundaria , a genus known only in southern Australia, was studied in relation to Vidalia , and its separation from the Vidalia assemblage is not accepted. Species of Vidalia therefore are transferred to the older genus name, Osmundaria. Two new species, Osmundaria papenfussii and Osmundaria oliveae are described from Natal. Confusion in the usage of the epithet, Vidalia fimbriala Brown ex Turner has been clarified, and Vidalia gregaria Falkenberg, described as an epiphyte on Osmundaria pro/ifera Lamouroux, is revealed to be young branches of the host, Osmundaria prolifera.     

New or rare chromosome counts in Artemisia L. (Asteraceae, Anthemideae) and related genera from Kazakhstan

Fifteen chromosome counts of six Artemisia taxa and one species of each of the genera Brachanthemum, Hippolytia, Kaschgaria, Lepidolopsis and Turaniphytum are reported from Kazakhstan. Three of them are new reports, two are not consistent with previous counts and the remainder are confirmations of very scarce (one to four) earlier records. All the populations studied have the same basic chromosome number, x = 9, with ploidy levels ranging from 2x to 6x. Some correlations between ploidy level, morphological characters and distribution are noted.     

肝癌中HBV和HCV基因和抗原的分布及意义

采用原位分子杂交方法检测HCV RNA及HBV X基因;采用免疫组织化学方法研究HCV核心抗原,非结构区C33c抗原及HBxAg在肝细胞肝癌中的定位及分布.结果表明(1)HCV RNA、HBV X基因在肝细胞肝癌组织检出率分别为40%(55/136)和82%(112/136).HCV RNA定位于癌细胞的胞浆内,阳性细胞呈散在、灶状及弥漫分布三种形式;HBV X基因在肝癌细胞中的分布呈胞浆型、核型及核浆型,阳性细胞也呈上述三种分布形式;(2)HCV C33c抗原、核心抗原在肝细胞肝癌中的阳性率为81%(133/164)及86%(141/164).C33c抗原定位于癌细胞及肝细胞的胞浆内;核心抗原既定位于癌细胞核中,又可定位于胞浆中.C33c抗原阳性细胞以灶状分布为主;而核心抗原阳性细     

Selection with two alleles and complete dominance

For a plant selection model with frequency-independent viabilities, fertilities and selfing rates, it is shown that apart from global fixation, for certain parameter combinations a protected polymorphism and facultative fixation (either allele may become fixed according to initial frequencies) may both occur. Facultative fixation requires different selling rates for the dominant and recessive type. Protection of the polymorphism requires resource allocation for male and female function. In this connection the problem of purely genetically caused population extinction is discussed.
For general frequency dependence and regular segregation, the chances for establishment of a completely recessive gene are compared to those of a completely dominant gene. It is proven that the process of establishment of the recessive gene, despite a fitness advantage, may be considerably endangered by drift effects if random mating prevails. The recessive gene may reach the same effectivity in establishment as a dominant gene, only if the recessive homozygote mates exclusively with its own type during the period of establishment.