The role of media exposure, social exposure and biospheric value orientation in the environmental attitude-intention-behavior model in adolescents

This paper explores the hypothesis that contextual environments (media exposure and social exposure) and biospheric value orientation are important antecedents to the attitude-intention-behavior model ( [Ajzen, 2001] and [Ajzen, 2002] ) in the context of environmental psychology. Data for this investigation were obtained from a random sample of 2106 (1073 males and 1025 females) high school students in Hong Kong. A path analysis demonstrates that adolescents’ social exposure and media exposure are associated with biospheric value orientation. The biosperhic value orientation is found to mediate between the contextual variables (media exposure and social exposure) and environmental attitude. This environmental attitude, in turn, mediates the relationship between this value orientation and behavioral intention to act environmentally. Results show that both adolescents’ behavioral intention and degree of social exposure are associated with their environmental behavior. Overall, this article provides empirical support for the proposed path model. The article concludes by presenting theoretical and practical implications for future research in environmental psychology.     

浅谈武术欣赏能力在武术教学中的作用及培养对策

武术是中华民族优秀的传统体育项目,不仅具有健身、修身及防身等诸多方面的作用,同时还具备着极高的表演与观赏价值。武术欣赏有助于激发学习兴趣、提高教学质量、丰富文化知识,通过加大理论课比重、注重武术知识及规则的传授、加强校园武术文化建设、完善课外活动、加快武术欣赏的理论与实践研究等途径,可以培养武术欣赏能力,进一步提高人们的武术欣赏水平,激发人们参与武术运动的积极性以及养成终身参与体育锻炼的习惯。     

城市可持续发展的制度经济学分析

城市不可持续发展的突出问题是“不可持续城市化”和“城市不可持续化”。城市发展存在政府与市场的双重失灵 ,制度变迁与制度供给是实现城市可持续发展的关键要素。城市可以看作是由经济、环境、社会、制度四个子系统构成的复杂系统。城市可持续发展的制度安排应遵循聚集利益导向、竞争优势导向、制度创新导向     

科技期刊中参考文献的作用及规范

参考文献是作者撰写论文或论著时所引用的有关期刊论文和图书资料。参考文献记录了科学的渊源,反映了某一课题的来龙去脉,体现了科学研究的继往开来,也显示了论文的起点、深度和广度。通过引用参考文献,可以将一篇论文与其他论文之间的有机联系告诉读者,便于相关人员开拓视野,交流经验,互通信息,共享成果,正确引用参考文献也是作者对他人劳动的尊重和对知识产权的维护。     

“化危机为转机”：灾害救助中社工组织的角色实践及行为策略

以往大部分文献从经济、政治和管理学等角度对“全能政府”与灾害危机之间的关系进行了探讨,过于重视政府角色的扩张,却忽略了非营利部门在灾害救助中的作用。本着社工非营利组织能发挥积极的“补充性（suplementary）”而非“替代性”作用的观点,本文围绕一个核心问题展开,即“社工非营利组织如何根据地震灾害的实际情况制定不同的行为策略,发展出一套组织生存法则”。虽然一些学者对社工组织在灾害救助过程中能否扮演重要角色或功能仍有质疑,但本文认为,社工组织通过“自省”（self-reflection）和“自我观照”（inner-understanding）,制定正确的行为策略,就能将灾害危机化为组织发展契机。     

联合国环境规划署（UNEP）的角色演进

环境问题是全球性问题,应对环境问题的需要催生了联合国环境规划署。其是联合国系统内最早成立的专门处理环境问题的机构,且为在全球层面上处理环境问题作出了重要贡献。自1972年成立以来,以里约会议为分界点,联合国环境规划署的发展可分为两个阶段,其在这两个阶段的发展状况有所不同。UNEP成立以来为世界环境保护事业做了很多努力,取得了可喜的成绩,但是世界环境恶化的趋势并没有得到遏制,国际环境管理体制存在着诸多的问题,UNEP面临着巨大的挑战和新的机遇。     

Increasing significance of advanced physical/chemical processes in the development and application of sustainable wastewater treatment systems

The awareness of the problem of the scarcity of water of high quality has strongly changed the approach of wastewater treatment. Currently, there is an increasing need for the beneficial reuse of treated wastewater and to recover valuable products and energy from the wastewater. Because microbiological treatment methods are, only to a limited part, able to satisfy these needs, the role and significance of physical/chemical processes in wastewater treatment are gaining more and more interest. The specific future role and aim of the various physical/chemical treatment processes can be categorized in five groups: improvement of the performance of microbiological treatment processes, achievement of the high quality required for reuse of the effluent, recovery of valuable components and energy from the wastewater for beneficial reuse, desalination of brackish water and seawater, and treatment of concentrated liquid or solid waste residues produced in a wastewater treatment process. Development of more environmentally sustainable wastewater treatment chains in which physical/chemical processes play a crucial role, also requires application of process control and modeling strategies. This is briefly introduced by the elaboration of treatment scenarios for three specific wastewaters.     

AHP-SWOT分析在福建省环罗源湾区域发展定位中的应用

合理的区域发展定位,对区域的可持续发展具有很大的支持,而区域发展定位结论的得出,需要一定的方法来支撑其客观性与科学性。应用定性与定量相结合的AHP-SWOT分析工具,在前期调查的基础上,首先对影响环罗源湾区域发展的优势、劣势、机遇与威胁进行识别,然后根据专家咨询的结果进行相关的AHP-SWOT分析,最后得出如下结论：将福建省环罗源湾区域定位为集海洋经济和临港工业为一体的生态港口工业城市,把该区域建成海峡西岸服务福州市的港口加工业与物流产业基地。     

Performance of water mist system with base injection in extinguishing small container fires

The purpose of the present work is the experimental investigation on the extinguishment of diesel container fires by a water-mist system with base injection through multiple nozzles placed symmetrically at various positions around the rim of the container. Experimental parameters selected are the orifice diameter of the nozzle, the number of nozzles, position of nozzles (angle of orientation, radial and vertical distance of the nozzle from the edge of the container), and injection pressure. Nozzles used in the present work are pressure-swirl nozzles with Z-type swirl-insert with solid-cone spray. Desirable properties of the system such as the non-clogging operation of the nozzle and uniform mass flux density in the spray are tested for the nozzles. The optimized solution is provided considering water consumption and the physical stability of the fuel surface in the container. Displacement of oxygen is observed as a predominant extinction mechanism due to the effective application of spray in the base region of the fire. The present work provides the parametric study of the extinction establishing the feasibility of the water mist system with a base injection for extinguishing tank fires. This may serve as guidelines for the preliminary design of the system with the extension for larger tank fires.     

管廊内泄漏口朝向对天然气管道泄漏扩散影响的模拟分析*

为掌握综合管廊内天然气输气管道泄漏口朝向对气体扩散的影响,使用FLUENT软件对4种不同朝向的泄漏口泄漏过程进行3维数值模拟,对比分析不同工况下气体浓度分布。结果表明:泄漏形成的射流产生强烈气体掺混,降低泄漏口附近气体浓度梯度;随着距泄露孔距离的增加,气体受惯性力作用减弱,并在浮力作用下抬升。管廊纵截面气体浓度场可分为泄漏口附近的均匀区和距离泄漏口较远的分层区。在均匀区内,探测器高度上气体质量分数纵向分布呈阶梯状;距泄漏口较远距离(大于20 m),泄漏口朝向对探测器高度上气体浓度纵向分布影响较小。基于稳态气体分布控制方程,提出气体在分层区内纵向分布关系式。当泄漏口刚好位于2探测器中央（最不利工况）时,泄漏孔朝向为X+（管道距离壁面较远侧）的泄漏气体在喷出后与空气接触时间长,产生涡量更大,使气体在管廊纵向上蔓延速度降低,探测器响应时间相对较长。