"翻转课堂"教学模式在"通信原理"课程中的教学实践

论文对"翻转课堂"模式在通信原理课程中的应用进行了实践研究.文章介绍了实施"翻转课堂"前教师和学生要做的准备工作,而后对不同的教学方法实施"翻转课堂"模式进行了实践探讨,包括学生讲课、课堂讨论、问题探究、教师讲解和训练、解惑和答疑等.同时对实践教学如何实施"翻转课堂"模式进行了分析,最后得出了"翻转课堂"教学对于学生成...     

《软件项目管理》课程翻转课堂教学模型的设计

为了提高教学质量,在Robert Talber翻转课堂实施结构模型的基础上,提出适合《软件项目管理》课程改进的翻转课堂教学模型。模型的实施以课程的一次主题内容"完成教学管理系统——需求规格说明书"为例,展示了翻转课堂的实际教学过程和良好的教学效果。文中还进一步探讨了翻转课堂是从以往传统方式下从注重教师"教"向注重学生"学"的转变,是填鸭式的"教"、被动式的"学",向教师引导式的"教"、自主探究式的"学"的一种转变。结论是:翻转课堂,值得在今后的教育教学改革中进一步深化和推广。     

“翻转课堂”模式在大学英语教学中的应用分析

"翻转课堂"教学模式在国内外诸多学科教学中取得了较好的效果。在我国普通高校向应用技术型高校转型的趋势中,"翻转课堂"模式在大学英语教学中的应用显得尤为必要。应根据我国大学英语的教学实际情况,将传统教学和翻转模式结合起来,以提升学生的实际语言应用技能。     

翻转课堂在《食品现代分析检测》课程教学中的应用

随着教学科技的快速发展和教育信息化的不断深入,翻转课堂作为一种新兴的教学模式,改变了传统课堂的教学形式,已成为目前国内外教学改革的新风向,为现代化大学教育开拓了新的视野。本文对翻转课堂做了深入的分析与研究,同时结合食品现代分析检测课程的实际情况,设计了一套实施翻转课堂教学的模式,并对实施该教学模式的意义和可能遇到的问题展开了分析和探讨。     

在“三要素”影响下对“翻转课堂”教学的再认识

<正>"翻转课堂"教学模式十分注重学生的自主学习,使学生的主体地位格外突出,正因为这点,"翻转课堂"教学模式兴起于美国之后,很快就风靡全球,在中国也引起了教育学界的普遍关注。关注"翻转课堂"的教学效果,首先要弄清楚"翻转课堂"的本质。所谓"翻转课堂",是指把"教师白天在教室上课,学生晚上回家做作业"的教学结构翻转过来,构建"学生白天在教室完成知识吸收与掌握的知识内化过程,晚上回家学习新知识"的教学结构,形成让学生在课     

基于翻转课堂模式的高职公共英语教学设计与实现

2011年在美国各地兴起的"翻转课堂",很快就吸引了多方的关注。这种新型的教育教学形式,颠覆了传统意义上的课堂教学模式,也让处于课程教学改革胶着状态的人们看到了课堂改革的新希望,为教学改革的开展提出一种新思路。文章利用翻转课堂的模式设计了一个高职大学英语的教学方案并予以实施,在教学实践中证明,翻转课堂教学模式对提高学生成绩以及增强学习兴趣有积极作用。     

国内外“翻转课堂”实施案例研究

"翻转课堂"教学模式的探索是我国进行教学改革中至关重要的一个阶段。本文通过对"翻转课堂"在国外发达国家发展中取得的优秀案例学习、国内"翻转课堂"实施案例的积极探索,对国内外"翻转课堂"案例进行分析,提出几点感悟,希望对于我国正在进行"翻转课堂"探索的院校有所借鉴。     

基于“慕课”的“翻转课堂”教学模式在大学英语写作教学中的应用性研究

基于"慕课"的"翻转课堂"作为一种新型教学形式,在当代教育行业迅速发展。本文简单介绍了基于"慕课"和"翻转课堂"教学模式以及此模式在大学英语写作中的有效教学方法以及其局限性,并针对其局限性提出了建设性意见。     

翻转课堂的共性问题、内涵及教师个性化施教探讨

随着教育改革的深入发展,翻转课堂日益受到业界的广泛关注。为了有效实施翻转课堂教学,落实以学生为本的教育理念,笔者以翻转课堂的形成及其基本环节为切入点,剖析了我国翻转课堂教学实践的共性问题,深入解读了翻转课堂的"三个翻转"的内涵,提出了准确定位翻转课堂中教师的角色,突出教师个性化施教者作用的具体建议。     

基于翻转课堂模式的园林史教学改革探索

FC模式即"翻转课堂",也称为"颠倒课堂",是利用信息技术"翻转"知识传授和知识内化2个学习过程的全新教学模式。园林史是风景园林专业的重要专业基础课程,笔者经过历年园林史课程教学实践经验的积累,结合地区实际,探索了基于翻转课堂理念的园林史教学模式改革的实施途经,以期合理地解决好传统园林史教学革新中的相关问题。通过改进多媒体教学方式,高效利用课堂时间,充分发挥学生的学习主动性,进而提高教学效果和学生的学习兴趣,为园林史教学改革提供参考。     

商会自治的基石——商会自治规范研究

在现代法律秩序中,商会自治规范是制定法的基础和必要的补充,甚至在某些方面替代了制定法;商会自治规范主要包括商会组织规范、行为规范、惩罚规范以及争端解决规范等;其效力仅及于其内部成员;商会自治规范和制定法之间存在冲突,但也存在整合的基础。     

癸氧喹酯干混悬剂含量测定的改进

采用高效液相色谱法测定癸氧喹酯干混悬剂的含量,在2-250μg/mL范围内,峰面积的常用对数与进样量浓度的常用对数呈良好的线性关系,R^2=1(n=5),平均回收率为99.24%~99.51%,RSD在0.05%~0.28%。此方法分析时间短,样品前处理简便、定量结果准确,重现性好,结果满意,为其质量控制提供了依据。     

猪毛色遗传的研究进展

本文概述了猪的毛色类型、猪的毛色遗传模式,着重综述了猪毛色基因分子基础的研究进展,指出存在问题并就未来发展方向做了思考。     

Comparison of 2 methods of centesis of the bursa of the biceps brachii tendon of horses

REASONS FOR PERFORMING STUDY: Centesis of the bicipital bursa using an 8.9 cm long spinal needle has been reported but the alternative of employing a 3.8 cm long hypodermic needle requires validation. OBJECTIVE: To compare the efficacy of 2 different methods of centesis of the bicipital bursa and to evaluate the usefulness of ultrasonographic imaging to determine the location of solution administered when centesis of the bursa is attempted. METHODS: For Trial 1, 6 clinicians, who had no previous experience of centesis of the bicipital bursa, attempted to inject a solution composed of an aqueous radiopaque contrast medium and physiological saline solution (PSS) into the bicipital bursae of 2/12 horses using the previously described distal approach to inject one bursa and a proximal approach to inject the contralateral bursa. The bicipital tendon and bursa were examined ultrasonographically before and after injection; and both shoulders were examined radiographically to identify the location of the medium. In Trial 2, another 6 clinicians, also with no previous experience of centesis, repeated Trial 1, using 6 horses, but the radiopaque contrast medium was mixed with air instead of PSS. RESULTS: Accuracy of centesis using the proximal approach was 39% and that of the distal approach 28%. Ultrasonographic examination of the shoulder allowed the location of solution and air to be accurately predicted in all 12 shoulders examined. CONCLUSIONS: Clinicians who have had no previous experience performing centesis of the bicipital bursa are unlikely to be successful in centesis using either approach. Radiographic examination after injecting a radiopaque contrast medium may be necessary to assess the success of centesis especially if bursal fluid is not obtained during centesis. Injecting air along with the radiopaque contrast medium provides more accurate ultrasonographic confirmation of centesis and better radiographic definition than does injection without air.     

不同样本商品蜂蜜中硒含量的测定

用硝酸和高氯酸消化蜂蜜,使硒游离出来,在微酸性环境下,硒和2,3-二氨基萘(DAN)生成有较强荧光的物质,用环己烷萃取,在激发波长378nm,荧光波长518nm处测定其荧光强度。蜂蜜中硒含量范围:0.10～0.82μg/g。表明:蜂蜜应视为天然富硒营养品。     

乳酸杆菌益生作用机制的研究进展

乳酸杆菌作为益生菌广泛用于人和动物。本文综述了乳酸杆菌改善宿主健康的机制。乳酸杆菌可通过产生抗菌物质如乳酸、过氧化氢、细菌素,或者通过竞争营养或肠道黏附位点来抑制致病菌;通过诱导黏附素的分泌或阻止细胞凋亡而增强肠道的屏障功能,从而保护肠道。文章重点讨论了乳酸杆菌表面成分（表面蛋白、脂磷壁酸和肽聚糖）与肠道受体（Ｃ型凝集素受体、Ｔｏｌｌ样受体和 Ｎｏｄ样受体）,阐述了他们结合后启动免疫调节信号,调控肠道免疫功能以发挥改善健康作用的机制。     

中华人民共和国农业部公告 第267号

为贯彻落实《兽药生产质量管理规范》(简称《兽药GMP》),进一步推动兽药GMP实施进程,我部制定了《兽药生产质量管理规范检查验收办法》,现予公告。本公告自2003年6月1日起施行。附件:兽药生产质量管理规范检查验收办法二○○三年四月十日第一章 总则 第一条 为推动《兽药生产质量管理规范》(以下简称兽药GMP)的实施,规范兽药GMP检查验收工作,制定本办法。 第二条 农业部负责全国兽药GMP管理和检查验收工作;负责制修订兽药GMP检查验收管理规定;负责兽药GMP检查员队伍建设和监督管理工作,负责国际兽药贸易中GMP互认工作。 …     

鸡败血支原体垂直传播模式及其阻断方法

以国际标准强毒Ｒ株人工感染非免疫产蛋鸡,定时扑杀,分别从鼻窦、眶下孔、气管、肺、气囊、卵巢和输卵管分离ＭＧ,并收集感染鸡所产蛋分离ＭＧ。结果表明,人工感染４８小时后上、下呼吸道及肺已被全面感染,９６小时气囊已被感染,１２０小时输卵管已能分离到ＭＧ,卵巢始终分离不到ＭＧ。人工感染鸡自１４４小时便能在其所产蛋中分离出ＭＧ。药物治疗能在７２小时内消除感染,油乳剂苗则需２４天后逐渐降低蛋内ＭＧ分离率,药物卵内注射、种蛋药浴、高温处理均能杀死卵内ＭＧ,但以研制的种蛋浸泡剂药浴效果为最好。     

Effects of size of ingestively masticated fragments of plant tissues on kinetics of digestion of NDF

Ingestively masticated fragments were collected and sized via sieving. Different sizes of esophageal masticate and ruminal digesta fragments, and ground fragments of larger masticated pieces were incubated in vitro, and undigested NDF remaining at intervals of up to 168 h of incubation was determined. The ruminal age-dependent time delay (tau) for onset of digestion of NDF was positively correlated (P < 0.004) with the mean sieve aperture estimated to retain 50% of the fragments between successive sieve apertures (MRA). Degradation rate of potentially degradable NDF (PDF) and level of indigestible NDF were not related (P > 0.10) to MRA of masticated and ground fragments. Estimates of tau were positively related to MRA, with slopes of bermudagrass < corn silage < ruminal fragments of corn silage. It was concluded that fragment size-, and consequently, ruminal age-dependent onset of PDF degradation of a mixture of different fragment sizes results in an age-dependent rate of degradation of the more rapidly degrading of two subentities of PDF. Models are proposed that assume a tau before onset of simultaneous degradation of PDF from two pools characterized as having gamma-modeled age-dependency and age-constant rates. The ruminal age-dependent pool seems to be associated with the faster-degrading pool, and its rate parameter increases with range in MRA in the population of fragments. Conceptually, the ruminal age-dependent rate parameter for PDF degradation seems to represent a composite of several effects: 1) effects of the size-dependent tau; 2) range in MRA of the population of ingestively masticated fragments; and 3) subentities of PDF that degrade via more rapid age-dependent rates compared with subentities of PDF that degrade via age-constant rates. The estimated fractional rates of ruminative comminution of ingestively masticated fragments (0.060 to 0.075/h) were of a magnitude similar to the mean fractional rates of PDF digestion (0.030 to 0.085/h), which implies that ruminative comminution may be first-limiting to fractional rate of PDF digestion. The in vivo roles of ingestive and ruminative mastication of fragments on PDF degradation must be considered in any kinetic system for estimating PDF digestion in the rumen. These results and others in the literature suggest that the rate of surface area exposure rather than intrinsic chemical attributes of PDF may be first-limiting to degradation rate of PDF in vivo.