全球系统科学若干问题

全球系统科学是一门关于人类圈同地球圈层关系的学问。本文主要讨论(1)全球系统科学的研究对象;(2)全球系统的进化规律;(3)地球的最新圈层,(4)地球演化的新突变期;(5)全球问题的实质和前景等问题。     

高职学生心理健康现状及对策研究

职业教育已经引起了全社会前所未有的关注，大力推进高职学生的心理健康教育工作是高职院校的一项重要任务。针对高职学生自卑、缺乏信心、自我封闭、家庭教育缺失较普遍的现象，提出要把心理健康教育纳入高职院校正规的教育体系，丰富学生的业余文化生活，把学校教育和家庭教育相结合的办法。     

旅游可持续发展评价研究进展及存在问题

从旅游可持续发展评价指标体系构建和评价方法选取方面分析了国外和国内旅游可持续发展评价的研究进展,对比国外研究情况指出国内旅游可持续发展评价研究在指标选取、权重确定、方法采用和时空尺度适用等方面存在的问题。     

Examining Hazard Mitigation Within the Context of Public Goods

/ This paper presents a case study of an American barrier island devastated by a hurricane to show how it is addressing the free-riding problem and protecting its public goods, thereby contributing to hazard mitigation. It examines hazard mitigation and the free-riding problem within the public goods framework. Free-riding is a term used in the public choice theory and common pool resource literature. It is a term used for describing the actions of rational individuals who freely exploit a collective or public good at the expense of others. Free-riding is a major problem faced by public goods. The problem very frequently occurs in the context of hazard mitigation and coastal resource management. Very little is known about the factors that contribute to the promotion of hazard mitigation. This paper identifies some of the important factors that help local institutions provide and sustain hazard mitigation measures. Theoretical and practical implications for hazards research and disaster management policy are presented.     

Fungal-modification of Natural Fibers: A Novel Method of Treating Natural Fibers for Composite Reinforcement

Growing interest in green products has provided fresh impetus to the research in the field of renewable materials. Plant fibers are not only renewable but also light in weight and low in cost. Polymer composites manufactured using them find applications in diverse fields such as automobiles, housing, and furniture. However, their hydrophilic nature and inadequate adhesion with matrix limits their use in high performance applications. In this study, a novel method for improving adhesion characteristics of natural fibers has been developed. This method is carried out by treating hemp fibers with a fungus: Ophiostoma ulmi, obtained from elm tree infected with Dutch elm disease. Treated fibers showed improved acid–base characteristics and resistance to moisture. Improved acid–base interactions between fiber and resin are expected to improve the interfacial adhesion, whereas improved moisture resistance would benefit the durability of the composites. Finally, composites were prepared using untreated/treated fibers and unsaturated polyester resin. Composites with treated fibers showed slightly better mechanical properties, which is most probably due to improved interfacial adhesion.     

河北省可持续农业发展中上土地生态环境约束及对策

本文论述了河北省土地生态环境存在的水土流失、土地沙化、土地盐碱化、土地干旱化、土地污染等主要问题及其对农业生产的影响,提出了保护和整治土地生态环境,保证可持续农业发展相应对策。     

洞庭湖区生态环境的问题与治理对策

在广泛、深入调查的基础上,分析了洞庭湖区生态环境的主要问题,并提出了治理对策。     

国家助学贷款刍议

国家助学贷款是我国实施“教育成本分担”、促进“教育机会均等”的一项重大措施．它对支持教育体制改革、促进教育事业发展、提高全民族素质具有十分重要的意义．笔者在深入调查和充分论证的基础上,简要回顾了目前国家助学贷款发展状况,并进一步提出完善的政策措施与建议,以期探寻国家助学货款健康发展的良方．参8．     

西部生态环境问题及对策建议

研究表明,西部地区生态环境问题主要表现在:①生态环境主要组成要素问题突出,表现在植被衰退、土地退化没有得到根本性控制,水环境问题突出,生态用水不能得到保障;②生态系统的生产功能、调节功能和生物多样性维持功能等服务功能下降;③生命支持系统受到威胁,生态破坏造成巨大经济损失,区域社会可持续发展支撑能力受到削弱.建议:西部地区应改变目前单要素、分割式的生态保护和建设思想,采取生态系统管理方式,树立预防为主、保护优先、防治结合的指导思想,加强重点生态功能区建设,开展区域生态保护研究,增加生态保护资金投入,建立生态补偿机制.      

浙江省电镀行业问题分析与污染整治对策

电镀作为浙江省主要的重金属排放行业,数量多、分布广、环境影响十分敏感。课题组根据浙江省内主要电镀企业及电镀产业集聚区的实地调研情况以及污染普查动态数据的分析,详细分析了浙江省电镀行业现状及存在的主要问题,并从产业布局与规模、生产工艺与装备、清洁生产、污染防治措施、环保监管、有效削减重金属污染物排放总量等方面提出了相应的整治提升对策,为电镀企业即将开展“十二五”污染整治提供重要的技术储备,对电镀行业的减排及转型升级有一定的参考价值。