基于元网络分析的重大基础设施建设项目风险评估框架与实证

重大基础设施项目具有战略性、集成性、复杂性等特征，项目容易受到多种风险因素的综合影响，导致项目目标的偏离。现有风险评估与风险决策的方法缺乏对于风险因素、风险事件之间关联的分析。为了实现重大基础设施建设项目综合系统的风险评估，本文采用元网络分析方法，构建项目目标、风险事件和风险因素的交互模型，揭示重大基础设施风险事件发生机制的黑箱过程。风险评估过程中，通过多个网络叠加运算分析每个风险因素对于各种风险事件以及项目各目标的影响情况，改进了以往仅对风险因素单一影响程度的风险评估方法。同时，本研究选择我国某河流水电站过坝运输项目方案比选的风险评估过程验证方法的适用性。     

提升英语口语思辨能力的教学改革策略

针对21世纪对英语口语思辨表达能力的要求，分析了英语口语和思辨性表达的关系，回顾了提升英语口语思辨能力的理论文献，总结了在英语听说课程中实践话题性内容听力导入、小组活动、演讲范例分析和呈现、文学经典作品导入和呈现有效提升英语口语思辨表达能力的作用。     

Toward professional standards for media transparency in the United States: Comparison of perceptions of non-transparency in national vs. regional media

This article reports the results of the national survey of 287 Public Relations Society of America members regarding current media transparency practices in the United States. The purpose of the study was to understand the forms of media non-transparency that exist in the United States, levels of non-transparency at the national and local/regional media, and perceptions of non-transparent practices by the public relations practitioners in the country. The project builds on previous research on global media transparency (Tsetsura & Kruckeberg, 2011) and uses Tsetsura’s (2005) framework to study media transparency. The survey results showed that direct media bribery is not a pressing issue in the United States; however, indirect media pressures that involve new forms of content creation, including native advertising and content marketing, are worrisome. Specifically, forms of indirect media bribery are common at the local and regional media levels in the USA. Research findings demonstrate that U.S. practitioners experience particular non-transparent challenges when working with the media and recognize financial pressures that U.S. media outlets face today.The results provide a basis for creating standards in U.S. practice to ensure that new forms of content creation, including native advertising and content marketing, are not acceptable at any level when sources of content are not disclosed. The study concludes with the discussion about the importance of understanding how new forms of sponsored content relate to media transparency in the USA and why U.S. practitioners should understand how media non-transparency relates to the issues of native advertising and brand journalism.     

重大突发公共卫生事件中的中小企业多维度社会责任问题探索

企业承担必要的社会责任是企业自身伦理道德的内在要求。肺炎疫情这一重大突发公共卫生事件给中国及世界经济造成了极大的冲击和影响，这就更需要中小企业在这个特殊时期肩负起更大的社会责任。梳理了企业社会责任的相关文献，并从社会、员工、消费者、供应商等维度研究了中小企业在重大突发公共卫生事件时期应当承担的社会责任。     

储层岩石矿物成分对酸蚀裂缝导流能力的影响

储层岩石矿物成分是酸压改造效果影响因素之一。研究认为，在储层岩石矿物成分中易溶物的含量及分布方式决定了酸蚀裂缝导流能力大小，易溶蚀物的含量越多，岩石溶蚀速率越快。室内测试了不同溶蚀速率下的灰岩和白云岩的酸蚀裂缝导流能力，研究了岩石溶蚀速率、易溶蚀物含量对酸蚀裂缝导流能力的影响，对酸压工艺设计方案提出了指导性建议。研究结果表明，储层岩石溶蚀速率与酸蚀裂缝导流能力增加倍比存在抛物线关系，易溶蚀物占30%40% 时酸蚀裂缝导流能力保持较好。     

Major Accidents (Gray Swans) Likelihood Modeling Using Accident Precursors and Approximate Reasoning

Compared to the remarkable progress in risk analysis of normal accidents, the risk analysis of major accidents has not been so well‐established, partly due to the complexity of such accidents and partly due to low probabilities involved. The issue of low probabilities normally arises from the scarcity of major accidents’ relevant data since such accidents are few and far between. In this work, knowing that major accidents are frequently preceded by accident precursors, a novel precursor‐based methodology has been developed for likelihood modeling of major accidents in critical infrastructures based on a unique combination of accident precursor data, information theory, and approximate reasoning. For this purpose, we have introduced an innovative application of information analysis to identify the most informative near accident of a major accident. The observed data of the near accident were then used to establish predictive scenarios to foresee the occurrence of the major accident. We verified the methodology using offshore blowouts in the Gulf of Mexico, and then demonstrated its application to dam breaches in the United Sates.     

大数据在重大行政决策中的应用及其法治化

大数据在重大行政决策领域的应用，属于技术理性与决策规则的有机融合。凭借信息来源与技术革新，大数据可赋予传统决策向数字化转型的新动能。大数据的应用贯穿于重大行政决策始终，在市场监管、环境保护等多类事项中所发挥的实践优势较为明显，能够推动决策的高效化、提升决策的精准度、增强决策机关之间的联动。然而，大数据应用可能会引发决策安全的隐忧、个人数据存在的空间被挤压以及决策失误的责任承担等难题。对前述问题提出对策的过程，实乃数据治理向治理数据的转变，此阶段不能欠缺法律法规的引导，应尝试从决策数据安全体系的法治保障、个人数据的法律保护、决策责任追究机制的科学建构等层面去推动大数据应用的法治化。     

包头师范学院有机化学实验教学改革探索

本文介绍了有机化学实验课程教学中存在的问题,初步探讨了包头师范学院化学、应用化学专业在有机化学实验教学过程中对实验教学内容、实验教学方式、实验室三废处理、学生成绩评定等方面进行的改革以及取得的成果。     

地方政府重大决策机制存在问题及优化路径

地方政府作为地方公共事务管理者，决策正确与否直接关系到公共管理活动的成败，并且在一定程度上影响地方经济发展的水平及其核心竞争力。由于我国地方政府现阶段决策主体多元性及其职能模糊性，一些重大决策失误现象屡屡发生，造成了有限资源的巨大浪费，严重影响了地方政府在人民群众中的威信和形象。对此，我国地方政府迫切需要优化重大决策机制，包括明晰体制内外决策主体的职能、第三方评估、公众参与、决策终身责任追究及倒查机制等，以推进地方政府决策的民主化、科学化和法治化。