Environmental jolts, institutional change, and the creation of entrepreneurial opportunity in the US electric power industry

The relationship between institutional change and entrepreneurship is poorly understood. We build the theory in this area by tracing institutional change in the US electric power industry over a 40-year period. Our analysis shows that environmental jolts mobilize actors to reformulate institutions, resulting in increased entrepreneurial opportunity. When the institutional environment is stable, we find that incumbent organizational forms and embedded logics present formidable obstacles to entrepreneurial activity. Environmental jolts, however, catalyze search processes and motivate the evaluation of current institutional logics. Specifically, in the case of the electric power industry, environments of abundance and regulation resulted in homogeneity of organizational structures and strategies, and few entrepreneurial opportunities. Environments marked by scarcity and crisis, however, witnessed heavy scrutiny of existing institutional arrangements that eroded their taken-for-grantedness and symbolic value, resulting in opportunities for entrepreneurial action.     

2006-2015年国内环境卫生与职业卫生学SCI文献引文分析

本文基于引文分析方法,对2006—2015年国内学者参与发表的环境卫生与职业卫生学领域的6995篇SCI论文进行文献计量分析。采用HistCite引文编年可视化分析工具,绘制引文编年图,分析环境卫生与职业卫生学研究现状,找出该领域的重要机构、期刊和核心文献。结果本研究分析SCI文献6995篇,涉及机构5275家,包含作者18571位,分布于162种期刊,施引文献173354条,关键词10287个。2006—2015年国内环境卫生与职业卫生领域SCI发文量年均增长率1.14%。研究结果帮助了解2006—2015年该学科领域的研究规律和发展趋势,识别重要的研究机构、期刊和著作,为开展后续科研工作加以指导。     

环境伦理与经济可持续发展

一向以增长为中心原则的人类活动使得自然环境遭受严重创伤,甚至危及人类自身生存的家园,环境伦理学因此成为人们研究的热点,如何处理好环境与经济、环境伦理与经济可持续发展之间的关系成为发展问题的症结所在。只有争取环境与经济的同时兼顾,对环境伦理与经济可持续发展采取双赢模式,才能走出这个两难境地。     

与时俱进,以战略眼光审视毕节试验区

毕节地区是我国喀斯特分布面积最大的地区,具有最典型的喀斯特人地生态系统,是全国贫困面最大、贫困程度最深的区域之一.因此,在毕节地区建立旨在探索和实践人类可持续发展理念的"开发扶贫、生态建设、人口控制"试验区意义深远,是马克思主义中国化与人类文明成果相结合的产物;毕节试验区的成功实践,为中国特色社会主义优越性提供并将继续提供强有力的实证;"开发扶贫、生态建设、人口控制"的试验区主题三位一体,有机统一,具有丰富的内涵,是践行"三个代表"重要思想的具体举措和生动实践.     

Name writing but not environmental print recognition is related to letter-sound knowledge and phonological awareness in pre-readers

This paper reports a study exploring the associations between measures of two levels of phonological representation: recognition (epi-linguistic) and production (meta-linguistic) tasks, and very early reading and writing skills. Thirty-eight pre-reading Ottawa-area children, aged 4–5 years, named environmental print (EP), wrote their own name, identified correct names and EP words amongst foils and detected foil letters within EP and names. Results showed that phonological awareness and letter-sound knowledge were not related to EP recognition. Name writing accuracy and name identification were related to both levels of phonological awareness. Furthermore, name writing showed a unique association with phonological awareness even after letter-sound knowledge was controlled statistically. Pre-readers may first use meta-linguistic phonological awareness in their name writing and identification prior to learning to read.     

Spatial/temporal indexing and information visualization genre for environmental digital libraries

INTRODUCTION A large number of environmental digital librar- ies have been designed and implemented recently to effectively manage environmental data such as satel- lite photos and images, map images, cartographic materials, and so on. Support for storing, distributing, searching for, retrieving, and utilizing this informa- tion is imperative in order for it to be used to its maximum potential benefit and effectiveness (Hicks and Tochtermann, 1998). The variability of envi- ronmental data…     

西安市城市化进程中的环境污染因素分析及对策

自18世纪中叶城市化现象首先在英国发生以来,城市化的热潮在世界各国愈演愈烈,但也带来了诸多问题,尤其以废气、废水和固体废弃物造成的环境污染问题最为严重.本文以西安市为例阐述了在快速城市化进程中城市的环境污染因素,分析了城市与经济发展所引起的环境污染的变化趋势,同时对解决城市化过程中的环境污染问题提出了对策及建议.     

非环境类专业《环境学概论》课程改革与实践

结合非环境类专业《环境学概论》教学过程中发现的问题,从教学内容、教学方法与手段和实践教学等方面进行教学改革与实践的探索,旨在激发学生的学习兴趣,提高教学效果。     

论国际政治中的自然环境

自然环境是综合国力构成的重要因素,并对国家的对外行为和国家之间的关系产生重要影响。环境问题日益成为国际安全问题之一,应引起各国的重视。     

Environmental education in television narratives: a Brazilian case study

Abstract

This article discusses recent Brazilian research on the relationship between environmental education and cultural studies. Television narratives about the environment and/or sustainability in our everyday lives are used to pose some initial questions about this relation. First, culture is discussed briefly showing how it potentially relates to teaching and informs our role as environmental educators. We argue that culturalist perspectives on research in environmental education politicise teaching practices, even though they are in a context that strays from prerogatives that envisage a future world marked by sustainable development and a green economy. We investigate the impacts of television narratives and images on our everyday lives wherein we are consistently taught particular written and visual messages about how to plan for our future. Examples are draw from the teaching effects of a Brazilian television programme called Repórter Eco, broadcast on a public television network, including the sustainable management of the baru (a typical tree from the Brazilia Cerrado). We argue the educational aspects of television programmes should receive critique, as the relationships established between people and various media artifacts produce particular meanings and ways of seeing the world. This presents a challenge for teachers as examining these subjective ways carefully requires critical examination, not only in terms of education for sustainability or environmental preservation, but also teaching using media.