Role of informal sector recycling in waste management in developing countries

Many thousands of people in developing country cities depend on recycling materials from waste for their livelihoods. With the focus of the Millennium Development Goals on poverty reduction, and of waste strategies on improving recycling rates, one of the major challenges in solid waste management in developing countries is how best to work with this informal sector to improve their livelihoods, working conditions and efficiency in recycling.The general characteristics of informal recycling are reviewed, highlighting both positive and negative aspects. Despite the health and social problems associated with informal recycling, it provides significant economic benefits that need to be retained. Experience shows that it can be highly counterproductive to establish new formal waste recycling systems without taking into account informal systems that already exist. The preferred option is to integrate the informal sector into waste management planning, building on their practices and experience, while working to improve efficiency and the living and working conditions of those involved. Issues associated with integrating informal recycling into the formal waste management sector are discussed.     

投资扩张的经济学分析

我国经济运行的态势良好,但存在的问题也不少。其中,投资盲目扩张的冲动较强是个主要矛盾。投资 受预期的影响,非理性预期是投资盲目扩张的一个充分必要条件。将科学发展观引入理性预期的概念之中,能够 提高投资决策和投资行为的科学性。建立健全正式的和非正式的制度安排,发展科学教育事业和提高全民的文化 素质,有利于形成信息的充分性和对称性。     

教育行动研究与在职外语教师的专业发展

教育行动研究作为一种解决现实课堂教学问题的实践方法和特殊的教师教育方法正受到越来越多的国内外教育研究者的关注。它倡导教师即研究者通过对自己课堂中的教学现象进行考察和研究并从中获取知识,改进教学质量。教育行动研究与教师专业发展密切相关。教育行动研究可以改进教学质量,提高教学水平,帮助在职教师重建知识体系,促使教师向专家型教师转化,是在职外语教师专业发展的可行的、有效的途径。     

The Prevention of Social Aggression Among Girls

This study represents the first systematic attempt to examine a theory‐based program designed to reduce girls' social aggression and increase positive leadership among peers. Fifth‐grade girls from six public schools were randomly assigned within classrooms to the social aggression prevention program (SAPP) and the comparison reading clubs. A school‐based small group program, the SAPP was demonstrated to have a positive impact for all students in the domain of social problem solving. For students with high baseline social problems, teachers reported positive changes in SAPP participants' prosocial behavior. In addition, the content of the program was critical: reading club participants improved their reading achievement at greater rates than SAPP participants. Targeting female students in a program focused on resolving social conflicts from multiple perspectives may be an important addition to broader, multilevel initiatives to prevent aggression and promote leadership in schools.     

重庆民族地区旅游业的定位与发展取向

重庆民族地区具有完好的生态环境,丰富的自然旅游资源,深邃的古文化遗存,绚丽多姿的民族风情等旅游资源优势。21世纪,重庆民族地区旅游业的发展要突出旅游的文化内涵和知识性,坚持可持续发展思想,注意利用现代高新技术,重视旅游人才的培养,以民族文化为依托,开发多种形式的民族文化旅游项目。     

Financial management: Development of scales

This study is a contribution to the development of family resource management scales, specifically financial management scales. Principal axis factor analysis, with varimax rotation, is used to assess underlying relationships in 23 family resource management variables related to time and money resources. Reliability and content, construct, and criterion-related validity of the scales are assessed. Two scales that are reliable and have some degree of validity are developed: frequency of financial problems and frequency of financial management. The scales could be used in future research, teaching, or counseling to organize financial management concepts.Preparation of this research was supported in part by the Illinois Agricultural Experiment Station. Data were collected in conjunction with the cooperative regional research project NC-182, Family Resource Utilization as a Factor in Determining Economic Well-Being of Rural Families. Cooperating states are Arizona, California, Illinois, Indiana, Iowa, Kansas, Michigan, and Minnesota.She received her Ph.D. from the University of Illinois; her current research interests include gender roles, family financial management, and economic well-being.Her current research interests include family financial management and consumer bankruptcy. She received her Ph.D. from the University of Missouri.Her current research interests include the economic well-being of various family forms. She received her Ph.D. from the University of Illinois.She received her Ph.D. from the University of Illinois. Her research interests are economic well-being and quality of life.     

大学生科技创新能力培养的实践——多重课堂

主要从大学生科技创新能力的内涵和特征、培养实施方案和实践探索等方面对大学生科技创新能力的培养理论和实践进行了系统研究,阐述了"多重课堂"的概念。     

从殖民地到20世纪中叶的美国人力资源开发与政策

人力资本是经济增长的重要源泉之一,重视人力资源开发是美国成功的一个重要因素。本文通过对殖民地时期到20世纪中叶美国人力资源开发过程和政策的回顾,来说明人力资源开发对美国经济发展的重要作用。     

论人的发展及其动力

人是不断发展的。人的发展主要是指作为"个人"和"人类"辩证统一的"人"的发展,包括个体特征的发展和社会特征的发展。人的个体特征的发展主要体现为身体的发展、实践活动的发展和精神活动的发展;人的社会特征的发展主要体现为人的社会素质的发展、人的需要的发展、人的社会关系的发展和人的个性的发展。人的发展是由多种动力推进的。人的需要的发展是引起人不断发展的自身内在的精神性动力,人的实践的发展是促使人不断发展的自身外在的物质性动力,社会环境的发展则是实现人不断发展的外部环境条件。在我国当前的社会主义建设中,贯彻科学发展观,坚持以人为本,就是为促进人的发展创造条件。     

关于经济发展与人口状况科学管理的思考

自从20世纪70年代以来,我国大陆举国上下认真贯彻计划生育的基本国策,终于取得了30年少生3亿多人、使得13亿人口日的到来推迟了4年的巨大成绩。此举促进了国内的经济发展,同时也为全球的人口总量的控制做出了贡献。但是,由于我国人口的基数太大,目前我国的人口状况依然存在着影响经济发展的不容乐观的问题。因此,在新的历史条件下,只有坚持与发展我国的控制人口数量、提高人口质量的基本国策,加强对人口的科学管理,才能实现经济与社会的协调发展。