优良学风是培养高质量人才的根本保证

本文从南昌航空工业学院多年来在学风建设方面所做的主要工作和取得的积极成果出发 ,系统地论述了学风建设对人才培养质量的重要作用 ,得出了优良学风是培养高质量人才的根本保证的基本结论 ,并对如何培育优良学风进行了积极的思考 ,提出了相应的对策。     

邓小平的先富论与社会和谐

允许“先富”,在于反对平均主义,提倡按劳分配,鼓励人们致富;允许“先富”是实现共同富裕的手段;扶持“先富”是国家拉动经济发展的战略决策。借鉴“先富论”,构建和谐社会,必须准确把握社会主义的本质,深刻认识我国社会发展的阶段性特征。     

在中国-东盟架构下的中国西南地区外语教育制度思考

本文归纳了东盟国家语言的概况,分析了东盟国家语言与中国西南地区民族语言的关系,结合在中国—东盟自由贸易区架构下中国西南地区外语人才的需求特点,指出了现行外语教育制度给当今社会特别是给西南地区带来的弊端,最后对外语教育制度提出了自愿化、专业化、基础化、区域化、激励化的系统改革构想,并从逻辑学、社会学、民族学、法学以及国际比较等角度进行了论证。     

The Effects of Competitive Environment on Supply Chain Information Sharing and Performance: An Empirical Study in China

Information sharing in supply chains has become an important topic over the past decade. This study uses data from 617 Chinese manufacturing firms to investigate the relationships among competitive environments, supply chain information sharing (SCIS), and supply chain performance. The results of structural equation modeling analysis show that (i) international competition is positively related to all three types of SCIS whereas local competition is not significantly related to any of the three types, (ii) internal information sharing is positively related to external information sharing with suppliers and customers, and (iii) internal information sharing and information sharing with customers are positively related to superior supply chain performance, whereas supplier information sharing is not significantly related to performance. The findings enhance our understanding of the relationships among competitive environment, SCIS, and supply chain performance in Chinese manufacturing settings.     

Quality Risk Ratings in Global Supply Chains

Extended enterprises face many challenges in managing the product quality of their suppliers. Consequently characterizing the quality risk posed by value‐chain partners has become increasingly important. There have been several recent efforts to develop frameworks for rating the quality risk posed by suppliers. We develop an analytical model to examine the impact of such quality ratings on suppliers, manufacturers, and social welfare. While it might seem that quality ratings would benefit high‐quality suppliers and hurt low‐quality suppliers, we show that this is not always the case. We find that such quality ratings can hurt both types of suppliers or benefit both, depending on the market conditions. We also find that quality ratings do not always benefit the most demanding manufacturers who desire high‐quality suppliers. Finally, we find that social welfare is not always improved by risk ratings. These results suggest that public policy initiatives addressing risk ratings must be carefully considered.     

"入世"与我国企业战略内核的进阶--核心竞争能力的视角

本文以我国加入WTO作为企业发展的环境变化背景,通过解析和应用企业核心竞争能力的思想内涵,探索我国企业发展战略内核的演化过程.文章首先分析指出,企业核心竞争能力的思想为企业揭示出企业在市场中的竞争优势并不是简单的产品市场竞争优势,而是包括制度、组织形式以及技术等层次在内的多种竞争优势的整合.根据回顾文献,并结合20多年的中国经济改革,文章将我国企业在宏观经济改革背景中的发展路径,折射到核心竞争能力的思想框架中,进行记录和分析,归纳整理出企业的发展路径是在政府主导型的制度变迁作用下,逐渐打破封闭体系,走向开放体系的过程;战略内核经历了从简单的重视规模到突出机制,再到加强灵活性,面对"入世"的制度现实,正日益注重发展和规范的互动效应演进过程.     

中国A股市场新股抑价现象的实证研究

首先定义了新股抑价水平,提出了影响抑价水平的可能因素,在此基础上确定了基本抑价模型、非受限抑价模型、受限抑价模型和对数抑价模型;随后描述了中国A股市场的新股抑价现象,并给出了各抑价模型实证研究结果;最后比较了四个模型在预测新股上市价格方面的优劣性.     

Stressors beget stressors: The effect of passive leadership on employee health through workload and work–family conflict

The current study examined passive leadership as a potential antecedent of two commonly studied workplace stressors (i.e. workload and work–family conflict), and investigated its negative effect on employee burnout and physical symptoms via these stressors. We collected two waves of data from 274 focal participants, and one wave of data from their co-workers. Results showed that both self-reported and co-worker-reported passive leadership was positively related to employee burnout and physical symptoms, as well as workload and work–family conflict. Additionally, workload and work–family conflict partially mediated the effects of passive leadership on burnout and physical symptoms, respectively. Our findings support the notion that passive leadership can create a stressful workplace and have a detrimental effect on employees’ health.     

A heuristic for the time constrained asymmetric linear sum assignment problem

The linear sum assignment problem is a fundamental combinatorial optimisation problem and can be broadly defined as: given an \(n \times m, m \ge n\) benefit matrix \(B = (b_{ij})\), matching each row to a different column so that the sum of entries at the row-column intersections is maximised. This paper describes the application of a new fast heuristic algorithm, Asymmetric Greedy Search, to the asymmetric version (\(n \ne m\)) of the linear sum assignment problem. Extensive computational experiments, using a range of model graphs demonstrate the effectiveness of the algorithm. The heuristic was also incorporated within an algorithm for the non-sequential protein structure matching problem where non-sequential alignment between two proteins, normally of different numbers of amino acids, needs to be maximised.     

Total completion time minimization in online hierarchical scheduling of unit-size jobs

This paper investigates an online hierarchical scheduling problem on m parallel identical machines. Our goal is to minimize the total completion time of all jobs. Each job has a unit processing time and a hierarchy. The job with a lower hierarchy can only be processed on the first machine and the job with a higher hierarchy can be processed on any one of m machines. We first show that the lower bound of this problem is at least \(1+\min \{\frac{1}{m}, \max \{\frac{2}{\lceil x\rceil +\frac{x}{\lceil x\rceil }+3}, \frac{2}{\lfloor x\rfloor +\frac{x}{\lfloor x\rfloor }+3}\}\), where \(x=\sqrt{2m+4}\). We then present a greedy algorithm with tight competitive ratio of \(1+\frac{2(m-1)}{m(\sqrt{4m-3}+1)}\). The competitive ratio is obtained in a way of analyzing the structure of the instance in the worst case, which is different from the most common method of competitive analysis. In particular, when \(m=2\), we propose an optimal online algorithm with competitive ratio of \(16\) \(/\) \(13\), which complements the previous result which provided an asymptotically optimal algorithm with competitive ratio of 1.1573 for the case where the number of jobs n is infinite, i.e., \(n\rightarrow \infty \).