Priority rule signalization under two visibility conditions: Driving simulator study on speed and lateral position

In literature, priority-controlled and right-hand priority intersections have rarely been compared on other elements than the number of right-of-way violations and collisions. This study investigates the effect on speed and lateral position of five priority rules under two visibility conditions at an intersection (without hierarchy between branches), which is, at this moment, a knowledge gap.Fifty participants drove five different routes in a simulator and were exposed to the following manipulations: priority to the right rule applying and indicated (road sign and road sign with road marking), priority to the right rule applying but not indicated (no sign), priority to the right rule not applying and indicated (priority road and priority at next intersection), under good and bad visibility.Results show a significant speed decrease for both situations where the priority to the right rule was indicated compared to situations with no priority to the right rule, especially when visibility was bad. Priority to the right signs with additional road marking resulted in lowest speed under both visibility conditions. For all priority rules, lateral position shifted more towards the middle of the road when visibility was bad.Since speed was higher in case of priority roads or roads with priority at next intersection, it can be concluded that a higher level of control (priority-controlled intersections) does not necessarily result in a traffic safety improvement. Therefore, policy makers should take into account the results of this study and not generally change all the priority to the right intersections by priority-controlled intersections.     

考虑题目选项信息的非参数认知诊断计算机自适应测验

选择题中的作答选项能提供额外诊断信息, 为充分利用选项信息, 研究提出认知诊断计算机自适应测验(CD-CAT)中两种处理选择题选项信息的非参数选题策略和变长终止规则。模拟研究的结果发现：(1)定长条件下两种非参数选题策略的分类准确性整体要高于参数选题策略; (2)两种非参数选题策略较参数选题策略具有更加均衡的题库使用情况; (3)非参数选题策略在两种新的变长终止规则下具有更高的分类准确率; (4)两种非参数选题策略均适用于选择题CD-CAT情境, 使用者可任选其一进行测验分析。     

推理方向与规则维度对儿童因果推理的影响

采用Frye和Zelazo等（1996）所设计的“二进二出”装置（斜面滚球装置）,设置了不同的推理方向、规则维度的因果推理任务,采用个别实验法,研究了60名3.5～4.5岁儿童因果推理能力的发展。结果发现：（1）儿童在不同方向的因果推理任务上成绩差异显著,因→果推理成绩要好于果→因推理;（2）不同维度下儿童的推理成绩有极显著的差异性,一维的因果推理更容易,三维合取规则的因果推理任务更难;（3）3.5～4岁左右是儿童因果推理能力发展的快速期。     

德与法有机结合--论和谐医患关系之建设

建设和谐的医患关系有赖于道德与法律的有机结合.既要发挥道德在法治建设中的作用,又要发挥法律在道德建设中的作用.在和谐的医患关系的建设中,道德与法律相互作用,但道德是统帅.     

论儒家全球伦理金律

“儒家全球伦理金律”是儒家思想内所包含的或从中发展出的能够作为全人类共同遵守奉行的基本的伦理原则、价值观和行为规范。它可初步归纳为“十大金律”,其特点为普适性、基础性、悠久性、系统性、针对性、智慧性和简洁性,它的本质是人道主义、合理主义与和平主义。全球伦理的构建不能缺少儒家伦理,儒家全球伦理是中华民族文化对人类文明作出的独特贡献。     

为什么说法家的“法治”是人治的一种表现形式

由于儒家德治思想与德政方略 ,使得人们通常将德治与人治相提并论 ,简单地把法治视为人治的天然对立物。然而 ,历史上的情况却没有这样简单 ,法家主张的“法治” ,就不是人治的天然对立物 ,而是人治的一种表现形式。法家的法治本意 ,是有“法治”而无“法制” ,是君王一人的“法治” ,而不是全社会的“法制”。     

Lay rationalism and inconsistency between predicted experience and decision

Decision‐makers are sometimes depicted as impulsive and overly influenced by ‘hot’, affective factors. The present research suggests that decision‐makers may be too ‘cold’ and overly focus on rationalistic attributes, such as economic values, quantitative specifications, and functions. In support of this proposition, we find a systematic inconsistency between predicted experience and decision. That is, people are more likely to favor a rationalistically‐superior option when they make a decision than when they predict experience. We discuss how this work contributes to research on predicted and decision utilities; we also discuss when decision‐makers overweight hot factors and when they overweight cold factors. Copyright © 2003 John Wiley & Sons, Ltd.     

市场化与人际信任变迁

在中国的市场化进程中, 我们正在面对一个确定的事实：人际信任逐年衰落。虽然已有研究一致证明信任可以促进经济发展, 然而, 很少有文献阐明市场经济发展对信任的影响。整合近年来各种新获得的宏观和微观证据可以发现, 市场化对信任存在抑制作用。具体来说, 我国的市场化进程中, 市场的动力属性充分彰显, 鼓励人们逐利和竞争, 激活了人们的创富热情, 但也造成经济人信念的流行, 破坏了信任者对人性的乐观预期; 然而, 相应的市场规则和社会规则发育不足, 无法充分保护信任者。最终, 市场化在消蚀经济赖以发展的基础——信任, 致使信任下滑。因此, 建立基于规则的、诚信的市场经济是阻遏信任衰落乃至重建信任的必要路径。     

项目反应理论等级反应模型项目信息量

信息函数作为项目反应理论中的一个重要概念,在进行项目和测验分析的工作中,以及在指导测验编制的工作中,有着非常重要的应用价值。信息函数的应用在计算机化自适应测验中更是重中之重,也受到最大关注。然而,关于多级记分项目信息函数特性的研究还比较少。本研究模拟了被试特质水平参数数据和项目参数数据,其中被试特质水平参数生成了121个被试特质水平参数点,项目参数生成了4批不同区分度参数数据,每批数据有126个不同难度等级参数组合模式的项目,每个项目有5个难度等级。通过数据分析后发现,等级反应模型项目提供最大信息量所对应的被试特质水平,是与该项目几个相互临近的难度等级组相适应,既不是只与其中一个难度等级对应,也不一定是与所有难度等级对应。本研究称这种规律为“临近难度等级占优”。这个发现无疑对测验质量分析和测验编制工作,包括计算机化自适应测验编制,具有重要的指导意义