产业演进中的循环经济

循环经济是在满足收益大于成本原则前提下对资源循环利用的一种生产方式,其核心是经济利益,只有满足这个要求的技术才会被利用。循环经济的实施需要一系列的条件,这些条件是随着经济发展水平的提高而不断成熟的,因此决定了任何社会的循环经济都是一个随着技术水平、规模经济、产业聚积、分工协作和社会文明等演进而不断深化的自然过程。     

产业生态化理论的演化和发展研究

本文从马克思关于人与自然关系的本质出发,首先探讨了产业生态化理论的内涵和目标问题,在此基础上对产业生态化理论的渊源及其演化和发展过程进行了系统性的研究,最后分析了目前该理论面临的困境和挑战。     

民族地区农业循环经济发展模式构想——以湖北省恩施州为例

农业循环经济是农业现代化的必然选择,确立农业循环经济发展模式是实施循环农业战略的前提条件。立足恩施州民族山区特色,园地制宜地设计适合州情的最佳发展模式,是恩施州当前发展循环农业的首要任务。笔者在借鉴我国其他地区发展循环农业的典范模式上,尝试建构起恩施州农业循环经济“三环复合模式”。     

具有复合周期磁场的电子回旋脉塞

本文从降低回旋脉塞中直流磁场的角度出发,利用线性伏拉索夫——麦克斯韦方程组,对通过静态复合周期磁场的弱相对论电子注与缓变圆波导中沿纵向作任意缓变的TE_(mn)模式之间的互作用机理,在理论上进行了详细的分析和讨论,导出了色散方程并作了数值计算。分析和计算表明,由于采用了静态复合周期磁场,其电子注与波互作用的不稳定性产生在电子回旋共振条件下,从而可以在不同的电子回旋空间谐波上工作而大大地降低直流磁场。     

论弗莱的三种语言模式

神话—原型批评理论的先驱弗莱不仅提出世界文学发展史是沿着神话—传奇—悲剧—喜剧—讽刺这一环形轨道运行的循环理论 ,而且还指出人类语言的发展轨迹也是一个环状结构。弗莱在阐述这三个语言阶段的不同特征以及它们之间的相互关系之后 ,指出《圣经》语言的独特性 ,视其为并不汇入语言循环的第四种语言模式。该理论对当今世界的语言学研究提供了一个全新的视角并产生了十分重要的影响。     

Circular literacy. A knowledge-based approach to the circular economy

ABSTRACT

This paper applies a knowledge-based approach to study the role of circular economy (CE) for sustainable development. An analysis of publications from practice-oriented CE advocates is deployed to study the types of knowledge actors foster when they pursue the transition towards a CE. With the proposed term ‘circular literacy’ (CL), an analytical framework is provided to differentiate between different types of knowledge relevant for a transition towards the CE: system, target, and transformation knowledge. The main emphasis is on identifying knowledge-related prerequisites that prevent or stimulate the transformative potential of CE thinking and practices for sustainable development. The analysis reveals how the CL in the sample is confined by a narrow economic vision of the CE, lacking a reflection of political and sociocultural aspects that are needed to be addressed in future research to gain a robust concept of a CE-driven systemic transition towards sustainability.     

Some new construction of circular weakly balanced repeated measurements designs in periods of two different sizes

Abstract

Balanced repeated measurements designs (RMDs) balance out the residual effects. Williams Latin square designs work as minimal combinatorial balanced as well as variance balanced for RMDs for p (period sizes) = v (number of treatments). If minimal balanced RMDs cannot be constructed for the situations where p must be less than v then weakly balanced RMDs should be preferred. In this article, some generators are developed to generate circular weakly balanced RMDs in periods of two different sizes. To obtain the proposed designs, some construction procedures are also described for some of the cases where we could not develop generators.     

Facilitating labour migration from Latvia: strategies of various categories of intermediaries

ABSTRACT

Within the broad category of migration industries, we focus on intermediaries between employers in Norway requiring migrant labour, and suppliers of Latvian workers willing to migrate. Mediation of labour power is a regulated domain in both countries, but regulations may change: regulations in Latvia have become more lenient, whereas in Norway, they have become stricter in response to increased migration. Intermediaries must be responsive to fluctuations in labour supply and demand, as well as to changing regulations. Today, destination countries are experiencing an overabundance of available migrant labour. This buyer’s labour market represents a challenge for intermediaries, spurring adjustments and side-stepping of regulations. Formal temp agencies are supplemented by informal ones, challenging the conceptualisation of intermediaries. Also work migrants may become agents, shaping new forms of intermediation and expanding the concept of ‘migration industry’ to encompass facilitation of labour migration through social networks. In this article, we construct typologies inductively, establishing categories meaningful in the complex context of labour migration from Latvia to Norway. We distinguish between mediation through formal versus informal agencies, establish characteristics of agencies versus individual social network-based mediation and discuss mediation through the posting of workers by companies.     

循环经济的缘起探究

循环经济是一种新的经济发展模式,是人类在追求可持续发展过程中所作出的一种理性选择,其出现不是某一种因素单一作用的结果,而是多种因素合力作用的结果,是人类在反思传统经济发展模式、矫正"制度失灵"和与自然合作博弈理性选择的结果.     

日本面向可持续发展的循环型社会法规体系探析

日本是世界上最早进行循环经济立法的国家,从20世纪“大量生产、大量消费、大量废弃”的浪费型社会,转变为21世纪“最佳生产、最佳消费、最少废弃”的循环型社会,面向可持续发展的循环型社会法规体系功劳很大。本文简单介绍了日本建立循环型社会的背景及其面向可持续发展的循环型社会法规体系和其运行情况,并归纳了该体系的主要特点,提出了日本在后京都时代循环型社会发展的主要趋势,目的是为我国大力发展循环经济提供借鉴。