赖氨酰氧化酶在动脉粥样硬化中的作用

赖氨酰氧化酶(lysyl oxidase,LOX)是一种铜依赖性氨基氧化酶,在多个组织器官中均有表达,能参与催化细胞外基质(extracellular matrix,ECM)中胶原和弹性纤维的赖氨酸残基交联,以维持细胞外基质的结构和功能正常.新近研究发现LOX与动脉粥样硬化亦有紧密关系.本文就LOX在动脉粥样硬化发生、发展过程中的联系作一综述.     

西方细菌学在中国的传播:1894-1949

西方现代细菌学19世纪中叶到20世纪初首先在法国建立,并在德国进一步发展.这一时期,也被介绍到中国.其进入中国有以下几条线索:传教士和来华医生带来有关知识;去西方留学人员带回有关新知识;西方细菌学研究机构在华设立分支机构;战争因素.     

What is behind the priority heuristic? A mathematical analysis and comment on Brandstätter, Gigerenzer, and Hertwig (2006)

Comments on the article by E. Brandst?tter, G. Gigerenzer, and R. Hertwig. The authors discuss the priority heuristic, a recent model for decisions under risk. They reanalyze the experimental validity of this approach and discuss how these results compare with cumulative prospect theory, the currently most established model in behavioral economics. They also discuss how general models for decisions under risk based on a heuristic approach can be understood mathematically to gain some insight in their limitations. They finally consider whether the priority heuristic model can lead to some understanding of the decision process of individuals or whether it is better seen as an as-if model.     

患者隐私杈的法学思考

结合法学理论、医疗实践和目前患者隐私权的法律保护现状,就侵权行为、民事责任的认定以及隐私权的限制等问题予以理论阐释,并提出了切实可行的保护措施,如建立健全相关法律法规、医务人员要增强法律保护意识等,以期为患者隐私权的保护提供有益的参考。     

关于恶性肿瘤发病年轻化的思考

恶性肿瘤的发病多在50岁以后,以中老年人常见。近年发现青年(≤40岁)患癌有增高趋势。从恶性肿瘤的高危因素及分子机制方面,探讨恶性肿瘤发病年轻化的可能原因。辩证地剖析机体内部和外界环境之间的关系,是研究恶性肿瘤发病年轻化的重要环节。     

工作压力反应及其与领导方式的关系研究

本研究通过对537位工作者的调查,探讨工作压力反应的类型及其与领导方式的关系,结果显示:工作压力反应存在四种类型,分别是积极压力反应类型、高压力反应类型、低压力反应类型以及消极压力反应类型。直接领导的不同领导方式与个体不同的工作压力反应类型存在关联。混合式领导方式下的个体积极压力反应最高,消极压力反应最低。变革型领导和交易型领导下的个体积极压力反应和消极压力反应无显著差异。     

初中生对父母冲突的知觉结构分析

以我国初中生为研究对象,以Grych等人的父母冲突子女知觉量表为工具,对量表是否适用于中国的初中生进行了验证研究,以此探明了初中生对父母冲突知觉的结构,初中生对父母冲突知觉问卷具有良好的信度和效度。     

倦怠问卷(BM)的结构研究

为了考察BM问卷在中国文化背景下的适应性,用修订的倦怠问卷(BM)和中文版的MBI-GS量表对363名中小学教师进行施测。探索性因素分析和验证性因素分析的结果表明在中国文化背景下,三因素模型得到最优拟合,分别命名为耗竭、士气消沉、动机丧失;BM问卷的内部一致性系数在0.7999-0.8768之间,区分效度和聚合效度在0.762-0.259之间,均达到了心理测量学的要求。     

Using eye-tracking to study audio-visual perceptual integration

Perceptual integration of audio-visual stimuli is fundamental to our everyday conscious experience. Eye-movement analysis may be a suitable tool for studying such integration, since eye movements respond to auditory as well as visual input. Previous studies have shown that additional auditory cues in visual-search tasks can guide eye movements more efficiently and reduce their latency. However, these auditory cues were task-relevant since they indicated the target position and onset time. Therefore, the observed effects may have been due to subjects using the cues as additional information to maximize their performance, without perceptually integrating them with the visual displays. Here, we combine a visual-tracking task with a continuous, task-irrelevant sound from a stationary source to demonstrate that audio-visual perceptual integration affects low-level oculomotor mechanisms. Auditory stimuli of constant, increasing, or decreasing pitch were presented. All sound categories induced more smooth-pursuit eye movement than silence, with the greatest effect occurring with stimuli of increasing pitch. A possible explanation is that integration of the visual scene with continuous sound creates the perception of continuous visual motion. Increasing pitch may amplify this effect through its common association with accelerating motion.     

勒维纳斯和利科的伦理学的异同

法国现代哲学把伦理学作为一个核心问题。在现象学的框架之下,勒维纳斯和利科重新思考了主体的自由及其责任。该文简单地介绍这两位哲学家的基本观念。勒维纳斯比较强调个人对他人的无限伦理责任,而利科更强调美德,把它当作为伦理生活的出发点。虽然这些伦理立场不同而很难协调,可是它们都提供很必要的资源来思考现代伦理生活所面的困境和它的未来的可能。