Factors involved in associations between Facebook use and college adjustment: Social competence,perceived usefulness,and use patterns

Although previous research has investigated widespread use of social media, especially Facebook, by youth attending college, the conditions under which these media foster adjustment to college remain unclear. This study tested a model illuminating pathways linking social competence to college adjustment via students’ perceptions about the usefulness of Facebook and ways in which they used the medium. Self-report survey data from 321 college students (M age = 20.09; 58% female; 84% Caucasian) attending a major Midwestern university supported the proposed model, indicating that higher social competence could foster or impede college adjustment, depending upon how it was related to beliefs about the usefulness of different Facebook functions and how these perceptions, in turn, were associated with patterns of Facebook use. Findings underscore the importance of considering connections among personal attributes, perception of media effectiveness, and media behaviors in assessing the implications of social media for users’ psychosocial well-being.     

政府和社会资本间信任对PPP项目绩效的影响——合作行为的中介作用

为解释以往关于信任对项目绩效正向或负向影响的研究分歧，以 PPP 项目为背景，构建以信任（能力信任和善意信任）为自变量、项目绩效为因变量、合作行为（角色内行为和角色外行为）作为中介变量的理论模型。通过结构方程模型分析 286 份有效问卷，结果表明:能力信任和善意信任对 PPP 项目绩效起正向促进作用，角色内行为和角色外行为对 PPP项目绩效起正向促进作用。同时，角色内行为和角色外行为在能力信任、善意信任与 PPP 项目绩效间均发挥部分中介作用。研究结果有助于深入理解中国 PPP 情境下不同维度信任对项目绩效的影响，也为 PPP 项目实践中面临的绩效低下问题提供了管理建议。     

Operator training simulators for biorefineries: current position and future directions

Recent technological advances in the development of alternative energy sources, including biofuels, for transportation and energy requirements have demonstrated the need for highly skilled engineers and operators in the biotechnological industries. Although operator training simulators (OTS) used in the traditional chemical process industries may be used to train biorefinery operators and engineers, several distinct aspects of bioprocess operations make their direct application limited. The development and deployment of OTSs for use in biotechnological processes is therefore beginning to gain increasing attention. This review paper examines the present status of OTS development and use in biorefineries, including future considerations on how an OTS may be used to improve operator competence, maximise biorefinery operational efficiencies and protect people and the environment. The general premise of an OTS is that model‐based operator training simulators can be used to verifiably enhance the training of industrial operators to run complex biorefineries. Only a few examples of the design and application of OTSs in large‐scale biorefineries have so far been reported. A discussion of the mathematical models used for OTS development is briefly presented, as well as available OTS design frameworks and vendors, including their benefits and drawbacks. The review concludes by looking at possible future directions of OTS development and use in biorefineries and their contribution in facilitating the transition to a bio‐based economy. © 2018 Society of Chemical Industry     

Multi-criteria decision making in workforce choice using AHP,WSM and WPM

This paper focuses on the implementation of Multi-Criteria Decision Making (MCDM) methods to evaluate the workforce competence in apparel industry. In this study, the Analytic Hierarchy Process (AHP), the Weighted Sum Model (WSM) and the Weighted Product Model (WPM) are suggested to solve workforce selection problem. The use of these methods is expected to help choose the best operator among several alternatives. Based on three criteria, each worker is evaluated in each executed operation. The criteria are a Quality Index ‘QI’, an Activity ‘A’ and an Attendance Rate ‘AR’. Thanks to the MCDM methods, scores allowing an objective classification of operators are obtained. Experimental results on AHP, WSM and WPM methods show the same decisions with the same workers’ classification from the best to the worst alternative. The resulting database contributes to the line balancing optimization by choosing for each operation, and as far as possible, the most competent operator.     

浅论我国监理企业的核心竞争力的建设

首先 ,通过对企业核心竞争力涵义的论述 ,用以阐述建筑行业的监理企业核心竞争力的内涵 ;其次 ,在明确监理企业核心竞争力提升的战略地位的同时 ,着重从九个方面 (监理企业本身的管理能力、监理企业的创新能力、监理企业的融资机制建设、监理人才竞争优势、监理企业品牌建设 ,形成名牌监理企业、监理企业文化、市场占有、企业发展的机制、积极参加建筑行业协会建设 )具体讲述监理企业核心竞争力的提升 ;最后强调我国监理企业核心竞争力建设的紧迫性     

基于供应链管理的建筑企业核心竞争力分析

针对建筑业低收益、低生产率、亏损面大的现状,本文提出将供应链管理用于建筑业以提高它的生产经营效率.文章重点讨论了建筑业供应链管理的概念、模型以及运作流程,并据以分析了建筑企业核心竞争力,结果发现采用建筑供应链管理不但能增强建筑企业在国内市场的竞争实力,也能从容面对国际同行业的挑战.     

培养学生工程索赔意识和能力的研究与实践

工程索赔是承包商保护自身正当权益、弥补工程损失、提高经济效益的重要和有效手段 ,能极大提高合同管理、项目管理和企业培养、工程索赔意识、能力、研究管理水平。文章通过理论教学、课程设计和社会实践等教学环节 ,对学生工程索赔意识和能力的培养进行了探讨     

房地产企业品牌竞争力的构建与提升

品牌竞争力是指企业的品牌拥有区别或领先于其他竞争对手的独特能力,塑造品牌已成为房地产企业在激烈的市场竞争中谋求长期发展和长远利益的经营战略.本文通过分析房地产市场及房地产产品的独特经济特征,探讨了房地产企业品牌竞争力的构建,并对房地产企业品牌竞争力的提升途径给出建议.     

房地产开发企业供应链管理探析

基于供应链的思想,结合我国房地产业实际情况,以房地产开发企业为核心,从房地产项目全寿命周期的角度提出了房地产供应链管理的概念.运用供应链管理理论,探讨了房地产供应链的合作伙伴模式,并据以分析了房地产企业核心竞争力,以达到控制和降低开发成本,增强企业核心竞争能力的目标.     

试论城市枢纽经济新的发展层面

本文提出城市枢纽经济的新构想 ,在对其有关概念、内涵等方面的国际理论进行简析的基础上 ,提出提升城市枢纽经济有四个关键性层面 :①原有经济基础的修复 ,扩大城市产业规模 ;②核心在于主导行业 ,发展在于信息产业 ;③综合交通体系能力的发挥 ;④国际金融中心形成的枢纽经济运作。