基于分子跃迁反应的回乡创业者“能量”扩散行为的实证分析——以河南省固始县回乡创业者为例

基于分手能量等概念,探讨了回乡创业者在城市打工过程中的"能量"获取行为,回乡后的"能量"扩散行为及扩散效应:①回乡创业者获取的"能量"与其打工历程密切相关;②人力资本在空间上表现为接触传递及跳跃传递,产业价值链的空间可分性是人力资本扩散的基础;③社会资本在扩散过程中存在突变性,空间距离的增加减少了原有社会关系的利用;④"能量"扩散促使劳动者就近就业,为他们提供了稳定的收入并改变其生产生活行为;⑤"能量"扩散对县域经济的发展意义重大.     

基于产业链视角的国内外事件管理研究述评

文章分析了事件产业链各环节的构成及相应的研究取向,从上游、中游、下游及影响评估四个方面对国内外事件管理研究领域的主要观点及其差异进行了述评。发现对事件管理的战略管理,产业融合背景下利益相关者合作,及事件参加者体验被忽视的地位等研究的缺失在国内外均有存在,国内尤为突出;而产业发展成熟度的不同使国内外研究角度与方法存在诸多不同,研究结果的梳理为事件产业发展提供了理性的反思,并进一步指出了研究应关注的问题。     

ISO14001环境管理体系及在中国饭店业中的应用

本文介绍了ISO14001环境管理体系及其在中国饭店业中的实施要点和延伸,试图为中国饭店业找寻一条实现可持续发展的道路.     

中原经济区复杂产业网络结构特征及演化

基于城市流和连锁网络模型,构建了2000年、2005年和2013年中原经济区复杂产业网络的有向拓扑结构图模型,借助复杂网络相关理论和方法及PAJEK软件,分析了中原经济区复杂产业网络的结构特征和演化特征。结果显示:1中原经济区产业发展过程中存在一定程度上的"马太效应",网络呈现出无标度网络的"择优增长"特征。2郑州、信阳和邯郸在中原经济区复杂产业网络中具有良好的资源控制能力和重要的地位,网络水平发育不明显,产业网络密度偏小。3在中原经济区复杂产业网络中,产业度与产业集聚系数表现出反向关联,与介数中心性呈现正向关联。4中原经济区产业网络随着经济社会的发展朝着更加复杂化的趋势发展。     

京津冀都市圈制造业产业链的空间集聚度分析

本文利用产业间空间集聚度方法,计算京津冀都市圈制造业的空间集聚度,并通过时间趋势分析和区际对比,分析京津冀都市圈制造业的空间集聚水平。研究结论为:①2004年,京津冀都市圈制造业产业链的空间集聚度平均值为0.0151,属于低度空间集聚。②京津冀都市圈制造业产业链的空间集聚度呈逐年上升趋势。其中,资源密集型产业和资金技术密集型产业的空间集聚度上升趋势明显;劳动力密集型产业变化趋势不显著。③京津冀都市圈制造业产业链的空间集聚度低于长江三角洲地区,且产业链空间集聚与产业属性的关系不明确;技术密集型产业链的空间集聚度较低,而资源密集型产业的空间集聚度较高。     

Numerical modelling of 3D fluid flow and oxygen isotope exchange in fractured media: spatial distribution of isotope patterns

An understanding of fluid flow, mass transport and isotopic exchange in fractured rock is required to understand the origin of several geological processes including hydrothermal mineral deposits. The numerical model HydroGeoSphere simulates 3D advection, molecular diffusion, mechanical dispersion and isotopic exchange in a discretely fractured porous media, and can be used to better understand the processes of mass transport and isotopic exchange in fractured rocks. Study of ¹⁸O isopleth patterns for different types of fractures and fracture networks with a range of structural complexity and hydraulic properties shows that fracture properties and geometry control mass transport and isotopic exchange. The hydraulic properties, as well as the density, spacing, and connectivity of fractures determine the isotopic patterns. Asymmetries in the geometry of oxygen isotope patterns could be used to determine the direction of hydrothermal fluid flow.     

Crowd control in restoration tragedy

This article traces the development of heroic drama into a more affective mode of tragedy. Using contemporary reappraisals of Aristotelian catharsis as an optic for this generic development, it shows that the emotions involved in the love plots and melodramatic endings that distinguished affective tragedy from its forebears were thought to have a normative ethical content as well as a purgative effect. This view poses a challenge to the accepted wisdom that affective tragedies neutralised or avoided political controversy by divesting audiences of their judgement. With particular reference to Nahum Tate’s The Ingratitude of the Commonwealth and Thomas Otway’s Caius Marius, two plays written at the cusp of the transition described here, this article demonstrates the role pathos played in granting audience members access to one another’s subjectivity. It makes the case that the emotional response to such overtly sentimental tragedies was intended as a means of modelling the intersubjective relations at the heart of all political communities, whose make-up and power were crucial points of contention in the period’s ongoing disputes over sovereignty.     

Sustainability of the tourist supply chain and governance in an insular biosphere reserve destination: the perspective of tourist accommodation

ABSTRACT

Small islands in peripheral regions are currently perceived as attractive tourist destinations. Governance plays an important role as a strategy for the revival of such destinations to achieve a more productive, environmental, social and sustainable management structure. ‘Good’ governance of a destination depends on all the actors involved in the tourism network. Such governance requires a redefinition of relations between government and society and minimal boundaries between public and private sectors. This paper has analysed the level of implementation of corporate social responsibility (CSR) in a tourist destination that is a biosphere reserve (BR), the island of Fuerteventura (Canary Islands, Spain), from a comprehensive approach involving a tourism supply chain (TSC) with private and public agents. The focal firms analysed within the TSC have been tourist accommodation establishments in Fuerteventura. The paper shows that the level of involvement of tourist accommodation in CSR is positive. However, this involvement is not sufficiently high to meet the requirements of a destination designated as a BR. Therefore, coordination policies should be developed that promote governance systems and further enhance sustainability in the destination.     

商品链视角下K-pop偶像的生产—消费政治研究

本文引入 Sack 的道德地理相关理论,从商品链中生产与消费节点的地方—道德维度,考察 Kpop 偶像商品链中生产与消费节点间的互动机制。研究表明：①新自由主义理念构建下的地理要素促进了K-pop偶像产业的高效运转,但阻碍了 K-pop练习生的差异化与多元化发展,因此具有消极的内在地理特征。②媒介营造了 K-pop 偶像后现代性的消费场景,满足了消费者对于空间情境、寻求认同以及创造意义的需求,但其对生产地事实的掩盖使得消费空间丧失了地方真实性与复杂性,呈现单一、割裂的内在地理特征。③K-pop偶像的生产与消费景观作为积极的工具道德地理景观促进了商品链的高效运作与循环,但其生产与消费互动具有消极的内在地理特征,不利于人们对客观世界的感知。     

Improved methodology for extraction and amplification of DNA from single grains of charred wheat

Comparisons were made between two commonly used methods for the extraction of ancient DNA from charred plant remains. Using artificially charred wheat seeds, we show that silica-binding is the most efficient method for extraction of DNA. We describe a improved silica-binding procedure, including pre-incubation with N-phenacylthiazolium bromide and increased washing of bound DNA, which yields amplifiable DNA from seeds heated at 200 °C for up to 8 h, conditions which promote the formation of Maillard products which often copurify with aDNA and inhibit subsequent PCRs. We believe that this method will be effective in ancient DNA extraction with most types of charred archaeobotanical material. Both cold- and hot-start PCR procedures gave good amplicon yields with extracts prepared in this way, but cold-start PCRs also resulted in synthesis of short artefact products. Addition of bovine serum albumin to PCRs, an inert carrier substance thought to enhance amplification efficiency by binding contaminants, had no advantageous effect and in fact reduced amplicon synthesis.