五磨脐贴促进腹部手术患者胃肠功能的恢复及对血清血管活性肠肽和降钙素基因相关肽的影响

目的通过观察腹部手术治疗后患者肠麻痹恢复情况,评价五磨脐贴对腹部术后胃肠功能恢复的促进作用;观察腹部手术患者血清中血管活性肠肽和降钙素基因相关肽的变化及五磨脐贴对其影响,探讨五磨脐贴促进腹部手术患者胃肠功能恢复的机理。方法80例患者分为两组,治疗组采用五磨脐贴外敷神阙穴,对照组不使用任何促胃肠动力药,观察患者术后肠鸣音恢复时间及术后肛门排气时间,观察两组血管活性肠肽和降钙素基因相关肽的变化。结果术后肠鸣音恢复时间及术后肛门排气时间组间比较,五磨脐贴治疗组的时间明显短于空白对照组,差异有显著性意义(P<0.01)。治疗前,两组血管活性肠肽和降钙素基因相关肽含量无=明显差异(P>0.05);治疗后,治疗组血管活性肠肽和降钙素基因相关肽较对照组明显降低,差异有显著意义P<0.05);五磨脐贴治疗组治疗前血管活性肠肽和降钙素基因相关肽含量明显高于治疗后,差异有非常显著性意义(P<0.01)。结论五磨脐贴抑制腹部手术患者血管活性肠肽和降钙素基因相关肽的分泌,促进胃肠功能的恢复。     

中国城镇居民教育与收入代际流动的关系研究

This study examines the relationship between education and intergenerational income mobility in urban China based on the data of Chinese Urban Household Education and Employment Survey (CHUHEES)—2004” by Institute of Economics of Education of Peking University. It analyzes the characteristics of the intergenerational income mobility of Chinese urban household through such indices as intergenerational income inheritance and mobility, and intergenerational income elasticity, exploring the role of education to promote intergenerational income mobility through pathanalysis and binary logistic regression. It also analyzes the changing tendency along with the progress of the market reform in China and tries to provide theoretical explanations for the empirical results. According to the findings, there is rather obvious intergenerational income transmission in urban China, and most children still resort in the same income group with their fathers. As a kind of important mechanism of intergenerational mobility, education is instrumental to promote children of disadvantage group to upgrade of their economic status, showing its strong functions to promote intergenerational upward mobility. With the improvement of the level of marketization together with appropriate social policy, the role of education to promote the intergenerational income mobility and social equity is getting stronger. __________ Translated from Jiaoyu Yanjiu 教育研究 (Educational Research), 2007, (5): 3–14     

Adaptive ant-based routing in wireless sensor networks using Energy*Delay metrics

To find the optimal routing is always an important topic in wireless sensor networks （WSNs）. Considering a WSN where the nodes have limited energy, we propose a novel Energy^＊Delay model based on ant algorithms （＂E＆D ANTS＂ for short） to minimize the time delay in transferring a fixed number of data packets in an energy-constrained manner in one round. Our goal is not only to maximize the lifetime of the network but also to provide real-time data transmission services. However, because of the tradeoff of energy and delay in wireless network systems, the reinforcement learning （RL） algorithm is introduced to train the model. In this survey, the paradigm of E＆D ANTS is explicated and compared to other ant-based routing algorithms like AntNet and AntChain about the issues of routing information, routing overhead and adaptation. Simulation results show that our method performs about seven times better than AntNet and also outperforms AntChain by more than 150% in terms of energy cost and delay per round.     

以师范生免费教育为契机 努力创新教师教育体系

2007年3月,国务院决定在教育部直属的六所师范大学实施师范生免费教育政策。为此华中师范大学以学科群建设为手段,创新教师教育职前培养体系;借助认知科学与信息技术,深化教师教育的改革与发展;建立教师教育综合实验区,构建一体化的教师教育体系。     

果胶的提取工艺及新技术应用研究

对不同原料(柑桔皮、木瓜、向日葵盘、甘蔗渣、松树皮和西瓜皮)中果胶的提取进行了简要介绍,同时阐述了果胶生产过程中新技术(膜分离技术、微波等)的应用及对果胶产品质量的影响.     

跨越时空的内在契合——关于杨朔、余秋雨散文之比较

杨朔与余秋雨散文是当代散文史上的两颗奇葩,尽管跨越了30年时空,但他们的散文在创作流变上经历了一个从创新的"范式"到僵化的"模式"的过程,二者的散文不仅有着对主流意识形态的迎合也有着内在精神上的契合.这样的相似之处是与他们所处的历史语境紧密关联的.     

“一带一路”背景下基于“趋同化”视角的高校留学生教育管理路径研究

在“一带一路”政策持续深入推进和高等教育国际化进程加快的当前,随着来华留学生生人数的急剧增长,“留学生的教育管理质量”已成为高校与社会关注的焦点。当前,多数高校在留学生教育管理工作的理念认知、工作队伍建设、育人体系建设以及学生自我教育管理等方面仍存在不足。笔者认为,应在尊重中外文化差异的基础上开展“同中有异”的“趋同化”教育管理,提高育人质量,加快实现我国留学生教育的可持续、“内涵式”发展。     

基于多学科融合的传感器与检测技术课程教学改革与实践

根据传感器与检测技术课程的特点,对教学内容、教学方式、课程实践进行了多方面探索和改革。经过多年实践表明,可以有效提高学生的学习主动性和实际动手操作能力,并培养学生工程应用和创新能力。     

基于新高考改革的综合管理平台架构设计——以江苏省为例

新一轮考试招生制度改革是党中央、国务院直接领导和推动的重大改革。江苏省作为全国第三批高考改革试点省份,已于2019年正式启动新高考改革。高考改革是一项系统工程,改革的所有政策、举措均需通过信息系统支撑来落实。从平台建设需要解决的问题、政策和业务的变化与功能需求入手,设计一个适用于新高考综合管理平台建设的系统架构,提出相关技术要求,以期为高考改革的平稳推进提供重要保障。     

面向过程的计算机课程高效线上教学方案研究——以计算机网络课程为例

针对疫情期间线上教学时学生学习积极性不高、学生提问不能及时得到解答、教师不能掌握学生学习进度等问题,分析了当前在线教学方法的弊端。结合“互联网+”、“SPOC+翻转课堂”与问题驱动教学,提出用分组方式调动学生积极性、用多种方式考核学生学习过程的方案,并以大连理工大学软件学院计算机网络课程为例,对课程内容及教学形式进行改革。