Shall we follow the money? Anti-mafia policies and electoral competition

Building upon the evidence that the mafia increases the degree of vote concentration, we use data on regional elections in Sicily to estimate the impact of anti-mafia policies on electoral competition. We find robust evidence that the reassignment for social purposes of property and assets seized to the mafia reduces the degree of electoral concentration. This result supports the hypothesis that policies that create social value, such as the reallocation to social-driven organizations, are more effective than those targeted to public and political institutions.     

Pollutant Ground Concentrations of Nonneutrally Buoyant Particles

A methodology is suggested for the estimation of the mass density and the cumulative ground deposition of a nonvolatile, nonneutrally buoyant, air pollutant (liquid or solid) released from a polluted column (following an explosion caused during routine operation in, e.g., the chemical industry or due to any kind of hostile act) and deposited on the ground via gravitational settling. In many cases, the deposited mass due to gravitational settling constitutes a significant fraction of the original inventory released from the source. Implementation of the methodology in preliminary risk assessments can serve as an efficient tool for emergency planning for both immediate and long‐term measures such as evacuation and decontamination. The methodology considers, inter alia, an estimation of the critical particle diameter, particle size, and mass distributions along the polluted column. This methodology was developed to apply in rural regions since proper application of relevant meteorological input data can be accomplished mainly for such areas.     

Racial diversity, minority concentration, and trust in Canadian urban neighborhoods

Using a sample of 42,329 respondents nested within 4254 Canadian urban neighborhoods, this study demonstrates the conceptual and empirical importance of making a distinction between neighborhood racial diversity and minority concentration, and examines how each is uniquely associated with trust. Our analysis shows that at a given level of racial minority concentration, Whites are more trusting when their minority neighbors are more evenly distributed across racial minority groups. Meanwhile, Whites are less trusting as the neighborhood share of racial minorities increases. Overall, the effect of racial minority concentration tends to prevail over that of racial diversity.     

Identifying radon-prone building typologies by marginal modelling

Radon is a naturally occurring decay product of uranium known to be the main contributor to natural background radiation exposure. It has been established that the health risk related to radon exposure is lung cancer. In fact, radon is considered to be a major leading cause of lung cancer, second only to smoking. In this paper, we identified building typologies that affect the probability of detecting indoor radon concentration above reference values, using the data collected within two monitoring campaigns recently conducted in Northern Italy. This information is fundamental both in prevention, i.e. when the construction of a new building is planned and in mitigation, i.e. when a high concentration detected inside buildings has to be reduced. A spatial regression approach for binary data was adopted for this goal where some relevant covariates on the soil were retrieved by linking external spatial databases.     

股权集中度与会计信息质量相关性的实证研究

构建了一个会计信息质量综合指数，利用股权分置改革后的样本数据，采用多元回归分析法对我国上市公司股权集中度与会计信息质量的相关性进行了实证研究。研究结果表明，当前我国上市公司中的股权集中度与会计信息质量是正相关的，上市公司的最终控制人性质与会计信息质量没有关系。     

股权激励绩效与股权结构关系

股权激励绩效与股权结构间的关系分析对股权激励制度的推行意义重大。运用分布滞后模型对中国上市公司中在相关的年份实施经营者股权激励的公司进行的全样本的动态研究发现：实施股权激励后．公司股权集中度降低；在注意提升内部人持股比例，加大激励力度的同时，提高了股票的流通性；上市公司实施股权激励当年的股权激励绩效与公司第一大股东、前五大股东、前十大股东持股比例均呈显著的负相关关系；股权激励绩效与国有股比例、非流通股比例呈显著的负相关关系，而与非国有股比例、流通股比例和内部人持股比例呈显著的正相关关系。     

PCB金手指表面变色研究(英文)

对印制电路板(PCB)金手指表面变色进行研究,通过对铜原子扩散的分析,解释了PCB金手指表面变色的原因,即铜原子扩散到PCB金手指表面而被氧化;另外,通过分析铜原子在PCB金手指表面的扩散的内在驱动力,并利用菲克定律结合实际条件得出铜在PCB金手指表面的扩散流量和浓度分布表达式,为在实际运用中防止铜原子在PCB金手指表面的扩散提供了理论依据。     

膜分离技术在液相色谱样品前处理中的应用

膜分离技术近年来广泛应用于液相色谱检测样品的前处理，加速了膜技术的进步。概述了膜分离技术的优点，重点综述了多孔膜和非孔膜分离技术原理和模型，以及 pH、温度、压力、膜组成等因素对分离性能的影响。介绍了膜分离技术在环境工程、食品工业和生物医药领域液相色谱检测样品前处理过程中的应用与其存在问题。同时指出如果能解决膜材料、膜分离装置和自动在线联用技术等制约因素，膜分离技术将在人类社会的发展史上起到不可替代的作用。     

论教育含量对政治参与的制约

教育含量对政治参与的制约是一个世界性的问题。没有全民教育含量的增升和整体素质的提高 ,真正的大众参与和高效的民主管理只能沦为空谈。教育含量既影响政治参与的民主意识 ,又影响政治参与的实际效果 ;既影响政治参与的发展进程 ,又影响政治参与的价值目标。唯物史观逻辑地推演出教育含量与政治参与的统一性 ;当代世界民主国家的政治发展也确凿地印证了二者的相关性。在人类社会的未来发展中 ,充足的教育含量是人的全面发展的必要条件 ;广泛的政治参与是人的彻底解放的必由之路     

综析经济法的精髓

经济集中,是指经济权威组织管理参与经济活动的权力以及为实现上述经济权力而制定的制度和程序.经济民主,是指经济活动主体行使权利的自由以及为实现这些权利所设定的制度和程序.经济法的精髓是经济集中与经济民主的对立统一.这种对立统一关系,在经济领域表现为国家干预和市场调节的对立统一;在政治领域的动因和表现为国家机器职能的转变;在法学领域的动因和表现是"社会本位"法理念的兴起和传统法学理论的突破;在法律领域的表现是经济法这一法律部门的出现.