突发重大疫情网络舆论的生成逻辑､演进特征与治理机制

新形势下突发重大疫情网络舆论不仅给疫情防控带来了严峻挑战，而且给维护国家意识形态安全带来了较大压力。厘清网络舆论的生成逻辑，把握网络舆论发展的演进特征，对做好网络舆论引导与谣言治理意义重大。在现代网络社会，随着交往实践的普遍进行，从现实逻辑、实践逻辑与理论逻辑来看，突发重大疫情网络舆论的生成，是网络议题、网络交往和网络传播相互作用的结果。受网络社会交往实践主体、客体、环体和介体等多种因素影响，突发重大疫情网络舆论又呈现为非线性的发展演进趋势，极易引发“蝴蝶效应”造成舆论秩序失范，甚至导致“塔西佗陷阱”的舆论信任危机，给疫情防控带来复杂变数。必须建立健全网络舆论治理机制，有效管控舆情，提高疫情防控治理水平。     

Linearity,symmetry, and equidistance in semantic differential scales for measuring images of self and images of others

ABSTRACT

Violations of linearity, symmetry, and equidistance of scale points in semantic differential scales may be due to respondents failing to figure out antonyms, to a positivity bias, or to respondents curtailing their reading the options. Multiple correspondence analysis on data provided by a randomized between-subjects experiment (split-ballot), using a web survey of 537 German residents, shows that bipolar semantic differential scales allow for linear measurement and conceal no positivity bias, and that using not suitable adjective pairs in semantic differential scales destroys symmetry.     

中国特色社会主义制度自信：基本依据·价值意蕴·实现路径

中国特色社会主义制度是立足世情、国情、民情和党情建立起来的制度体系。从历史选择到制度实践构成了我们在新时代夯实制度自信的基本依据；从共同富裕到人的全面发展彰显了制度自信特有的价值意蕴。站在新的发展阶段，既需要大胆借鉴古今中外制度建设的有益成果，又务必坚持在实践基础上以理论创新推动制度创新，以制度借鉴、制度实践和制度创新进一步坚定制度自信。     

Measuring and Achieving Equity in Multiperiod Emergency Material Allocation

Emergency material allocation is an important part of postdisaster emergency logistics that is significant for improving rescue effectiveness and reducing disaster losses. However, the traditional single‐period allocation model often causes local surpluses or shortages and high cost, and prevents the system from achieving an equitable or optimal multiperiod allocation. To achieve equitable allocation of emergency materials in the case of serious shortages relative to the demand by victims, this article introduces a multiperiod model for allocation of emergency materials to multiple affected locations (using an exponential utility function to reflect the disutility loss due to material shortfalls), and illustrates the relationship between equity of allocations and the cost of emergency response. Finally, numerical examples are presented to demonstrate both the feasibility and the usefulness of the proposed model for achieving multiperiod equitable allocation of emergency material among multiple disaster locations. The results indicate that the introduction of a nonlinear utility function to reflect the disutility of large shortfalls can make the material allocation fairer, and minimize large losses due to shortfalls. We found that achieving equity has a significant but not unreasonable impact on emergency costs. We also illustrate that using differing utility functions for different types of materials adds an important dimension of flexibility.     

Blinded continuous monitoring in clinical trials with recurrent event endpoints

In studies with recurrent event endpoints, misspecified assumptions of event rates or dispersion can lead to underpowered trials or overexposure of patients. Specification of overdispersion is often a particular problem as it is usually not reported in clinical trial publications. Changing event rates over the years have been described for some diseases, adding to the uncertainty in planning. To mitigate the risks of inadequate sample sizes, internal pilot study designs have been proposed with a preference for blinded sample size reestimation procedures, as they generally do not affect the type I error rate and maintain trial integrity. Blinded sample size reestimation procedures are available for trials with recurrent events as endpoints. However, the variance in the reestimated sample size can be considerable in particular with early sample size reviews. Motivated by a randomized controlled trial in paediatric multiple sclerosis, a rare neurological condition in children, we apply the concept of blinded continuous monitoring of information, which is known to reduce the variance in the resulting sample size. Assuming negative binomial distributions for the counts of recurrent relapses, we derive information criteria and propose blinded continuous monitoring procedures. The operating characteristics of these are assessed in Monte Carlo trial simulations demonstrating favourable properties with regard to type I error rate, power, and stopping time, ie, sample size.     

"指标困局":农村贫困治理的实践与反思

在国家的扶贫实践中，地方政府的行为策略是影响扶贫绩效的关键变量。通过对精准扶贫政策实践的调研发现，中央政府不断升级的治理手段为重构央地关系创造了条件，地方政府对国家扶贫理念转型认知的偏差以及在形成路径依赖之后的策略行为不仅容易产生对总体局势的误判，还为后期的政策困局埋下了伏笔。在此背景下，地方扶贫工作遭遇“指标困局”，即地方政府很难实事求是去识别贫困户，只能在既有的指标约束下进行精准识别，扶贫工作陷入了反复识别，却仍难实现精准的怪圈。     

中国共产党宪法治理百年探索及省思

中国共产党的宪法治理经历了从根据地局部执政时期的革命宪法,新中国成立初期移植苏联宪制模式及本土化探索,到改革开放后逐步形成依宪治国与依宪执政的新局面。百年宪法治理历程曲折蹒跚,终坚定向前,经验值得弘扬。宪法治理模式的移植当慎重,宪法的权威应维护,加强党的领导和中国特色社会主义宪制创新,培育中国特色社会主义宪法文化任重道远。     

论改善型民生

根据支撑基础、责任负担、保障水平以及民众需求等维度，可以把民生保障划分为托底型、基本型、改善型以及富裕型等四种类型。改善型民生是经济社会发展到一定阶段的产物，也是国家治理体系与治理能力现代化的客观要求。它是指通过各类民生项目的安排及民生待遇优化以促进民众生活得到持续改善、社会发展水平得到提升的一种制度类型，是民生项目更加齐全、内容更为完善、治理水平更高、使民众各按其分的民生模式，是人们的日常生活与服务消费支出总额持续增长以便能够提升生活水平的民生类型，是那种不断满足人的需要特别是较高层次需要的模式类型，也是更有助于形成社会结构稳定、国家长治久安的民生制度类型，因而具有综合性、完善性、激励性以及发展性等特点。这要求我们优化民生类型设计及民生投入结构，补齐改善型民生短板，营造良好社会秩序，扎实推进国家治理体系及治理能力现代化建设。     

伸展构造背景下倾角资料的构造解释

系统总结了在伸展构造背景下，导致反映构造特征的地层倾角模式复杂化的多种因素。沉积相的不同、岩性变化、井眼状况和测井作业时间等多种因素都可能使地层倾角资料复杂化。进一步指出在拉张盆地中，进行倾角资料的构造解释，必须了解其构造样式的多样性和复杂性，解释存在的多解性。重点解剖了铲式断层在横剖面情况下，对于不同构造位置下的倾角模式。详细分析了一个倾角模式对应多种构造样式的倾角构造解释实例。倾角资料的构造解释应是综合解释，既要综合井筒的相关地质资料，又要综合测井与地质知识，还必须考虑综合地震资料。