从CET4的阅读材料看语言测试中的性别歧视

性别是导致测试偏颇性的因素之一。对近五年大学英语四级考试中阅读材料的内容与语言分析结果显示,性别歧视现象存在于大学英语四级考试的阅读材料中。     

我国生命教育的理论及实践探析——由大学生轻生引发的思考

我国部分高校存在着学生自杀及对生命不尊重的现象。而我国生命教育刚刚起步,存在诸多不足。根据我国生命教育的现状,从生命教育理论体系和实践操作体系两个方面出发,采取加强适合我国国情的生命教育,以期对预防大学生自杀、降低其自杀率有所裨益。     

对当前大学生道德学习的认识与思考

大学生道德学习是高校德育研究的新领域,不仅具有重要的理论价值,而且具有重要的实践意义。研究大学生道德学习现状,要深刻把握当前大学生道德学习的时代境遇,注重发挥大学生道德学习的主体能动性,把处于客体地位的大学生视为主体,充分尊重其主体地位,并且认识到当前大学生道德学习素质的提升,有利于更好地把握大学生道德学习的规律,为我们制定适应当前大学生道德学习的策略提供必要的依据。     

研究生班级党支部的发展规律、运行机制和目标管理

按照学生党建工作要求,探究研究生班级党支部自建立到结束各不同发展时期的发展规律,并在其运行中加以目标化管理,使其更加有效地开展工作,发挥支部的功能作用和党员的模范作用。     

就业和学分制视野下的高职院校教学管理

高职院校的教学管理改革,应以就业为导向,以学分制为主导。本文针对就业和学分制视野下的高职院校教学管理中凸显的问题,提出教学管理改革的若干举措。     

Mathematical models of canine right and left atria cardiomyocytes

The aim of this study is to build two mathematical models of canine ionic currents specific to right atria and left atria.The canine left atria mathematical model was firstly modified from the Ramirez-Nattel-Courtemanche(RNC) model using the recently available experimental data of ionic currents and was further developed based on our own experimental data.A model of right atria was then built by considering the differences between right atria and left atria.The two developed models well reproduced the exper...     

Neurochip based on light-addressable potentiometric sensor with wavelet transform de-noising

Neurochip based on light-addressable potentiometric sensor(LAPS),whose sensing elements are excitable cells,can monitor electrophysiological properties of cultured neuron networks with cellular signals well analyzed.Here we report a kind of neurochip with rat pheochromocytoma(PC12) cells hybrid with LAPS and a method of de-noising signals based on wavelet transform.Cells were cultured on LAPS for several days to form networks,and we then used LAPS system to detect the extracellular potentials with signals d...     

Effect of interrupted endogenous BMP/Smad signaling on growth and steroidogenesis of porcine granulosa cells

Bone morphogenetic proteins (BMPs) play a critical role in the growth and steroidogenesis of granulosa cells (GCs). BMP signals act through membrane-bound heteromeric serine/threonine kinase receptors. Upon ligand binding, BMPs activate intracellular Smad proteins and regulate growth and apoptosis in various cell types. The objective of this study was to demonstrate the effects of BMP/Smad signal on growth and steroidogenesis of porcine GCs. A strategy of RNA interference (RNAi)-mediated ‘gene silencing’ of Smad4, a core molecule mediating the intracellular BMP/Smad signal transduction pathways, was used to interrupt endogenous BMP/Smad signaling. Results indicate that Smad4-small interfering RNA (siRNA) caused specific inhibition of Smad4 mRNA and protein expression after transfection. Interrupted endogenous BMP/Smad signaling significantly inhibited growth, and induced apoptosis of porcine GCs, while decreasing estradiol production. In addition, interrupted BMP/Smad signaling significantly (P<0.05) changed the expression of Cyclin D2, CDK4, Bcl-2, and Cyp19a1. These findings provide new insights into how BMP/Smad signaling regulates the growth and steroidogenesis of porcine GCs.     

Congenital atresia of the left main coronary artery in an infant

Congenital atresia of the left main coronary artery is a rare occurrence, and surgical revascularizationbypass graft is required. We here report a rare case of congenital coronary anomaly in an infant. A 10-month-old male infant was admitted to the hospital with heart failure symptoms. Echocardiographic examinations revealed mitral valve regurgitation and ischemic changes of the anterolateral papillary muscle and chordae. Coronary angiography showed atresia of the left main coronary artery with a severe hypoplastic left anterior descending artery and a circumflex coronary artery. Unfortunately, sudden cardiac arrest occurred after catheterization and the infant did not recover despite of immediate cardiopulmonary resuscitation. Further studies are needed to find a newer diagnostic method to detect coronary anomaly in an infant, and coronary angiography, if necessary, has to be performed very carefully.     

让音乐成为小学德育课堂的营养剂

长期以来,小学德育课堂强调道德知识的灌输、行为规则的训练,忽视学习个体内心的情感和体验。机械被动的德育课堂让学生学会了说假话、空话,降低了德育过程的实效。本文在尝试对现状进行分析的基础上,提出让音乐成为小学德育课堂的营养剂,创新德育课堂,提高德育课堂的实效。