浅谈城市道路设计

城市道路的建设发展将面临前所未有的机遇和挑战,方便快捷的交通能推动城市建设快步进入新纪元,因此城市道路规划、设计必须在可持续发展的战略原则。笔者叙述了城市道路的可持续设计要点,和城市道路相关可持续解决方案,及可持续设计理念在我国的应用现状及前景。     

A faster estimation method for the probability of informed trading using hierarchical agglomerative clustering

The probability of informed trading (PIN) is a commonly used market microstructure measure for detecting the level of information asymmetry. Estimating PIN can be problematic due to corner solutions, local maxima and floating point exceptions (FPE). Yan and Zhang [J. Bank. Finance, 2012, 36, 454–467] show that whilst factorization can solve FPE, boundary solutions appear frequently in maximum likelihood estimation for PIN. A grid search initial value algorithm is suggested to overcome this problem. We present a faster method for reducing the likelihood of boundary solutions and local maxima based on hierarchical agglomerative clustering (HAC). We show that HAC can be used to determine an accurate and fast starting value approximation for PIN. This assists the maximum likelihood estimation process in both speed and accuracy.     

元认知策略与英语课外阅读自主学习

元认知策略的主要内容与提高学生英语课外阅读自主学习能力密切相关。提高学生的元认知意识、培训学生制定课外阅读计划、自我监控阅读过程及评估阅读效果,有利于激发学生学习的主动性和能动性,培养学生的英语自主阅读能力。     

国际公约与可持续旅游发展研究——兼论我国可持续旅游发展之路径

基于旅游业对经济、环境、文化等所产生的巨大的负面影响,学者对传统的旅游发展模式提出了质疑,生态旅游和可持续旅游的理念得到人们的接受和推崇。本论文对几大重要的可持续旅游国际公约进行了一定程度的评述,并在此基础上对我国可持续旅游发展道路提出了几点建议。     

论农业补贴与农业政策性金融

文章通过农业补贴政策比较探讨了农业补贴调整方向,并认为要用政策性金融杠杆支持和保护农业势在必行。     

Moving toward crisis preparedness: Factors that motivate organizations

This article proposes that factors such as the experience of a crisis, new members on the top management team, regulation, expectations of the industry association, and the potential threat of media scrutiny motivate organizations to make changes in their crisis preparation practices and move toward greater preparedness. It describes how each of these factors motivate organizations to make changes, and explains specific characteristics that are critical in creating fundamental versus superficial changes.     

Are your employees minding their behavior?

Self-managed, "tailored" behavioral change programs cross both wellness and disease management issues and can impact the bottom line on health care costs of both employer and employee. For example, a back pain program can help change employee behavior to prevent the incidence and upflow of a condition to more severe and debilitating situations.     

Increasing Charitable Giving: What Can We Learn from Economics?*

There is growing policy interest in charitable giving in the UK. As part of its Big Society agenda, the current government is keen to encourage a higher level of donations, highlighting new technologies, new social norms and tax incentives as potential mechanisms for raising giving. In the 2012 Budget, however, the Chancellor also proposed limiting tax relief on donations to £50,000, sparking an intense discussion about the effectiveness and desirability of tax incentives for major donors. This paper brings together recent evidence relevant to the ongoing policy debates.     

Correlates of Drug Testing Attitudes in a Sample of Blue Collar Workers

Using responses from 1429 workers employed in the wood products industry, we examine the relationship between drug testing (DT) attitudes and several demographic, organizational, job attitude, and job outcome variables. After controlling for age and marital status, analyses revealed moderate correlations between DT attitudes and alcohol and drug variables, DT program characteristics, organizational, and work attitude variables. DT attitudes were weakly but significantly related to absences, late work arrivals, accidents, and injuries. Implications of the findings and future research suggestions are discussed.