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[en] Uranium has long had a losing position in the international metal markets. Sales were not in tonnes but in lbs, i.e. English pounds. Not long ago, the market price was near the limit of the production cost. This has changed with the impending climate crisis. (orig.)
[en] This paper explores the empirical evidence of the link between residents’ low-carbon awareness and their behaviors in China. A questionnaire measuring seven dimensions (including low-carbon knowledge, low-carbon value, low-carbon attitude, private low-carbon behavior, public low-carbon behavior, barrier and motivator) was distributed to the residents of Tianjin, yielding 354 valid responses. The results indicated that there was a low-carbon awareness–behavior gap. In particular, the level of behavior was higher than awareness because the motivators were stronger than the barriers. Second, in exploring the affects of motivators versus barriers on the residents’ private and public low-carbon behaviors, we found that motivators promoted both private and public low-carbon behaviors while barriers significantly inhibited public low-carbon behaviors. Third, Chinese social and cultural factors are discussed to inform our exploration of the mechanisms forming the residents’ awareness–behavior gap. - Highlights: • There was a low-carbon awareness–behavior gap. • The level of behavior was higher than awareness. • The motivators promoted both private and public low-carbon behaviors. • The barriers significantly inhibited public low-carbon behaviors
[en] The increase in social awareness, politics and environmental regulation, the scarcity of raw materials and the desired “green” image, are some of the reasons that lead companies to decide for implement processes of Reverse Logistics (RL). At the time when incorporate new RL processes as key business processes, new and important decisions need to be made. Identification and knowledge of these decisions, including the information available and the implications for the company or supply chain, will be fundamental for decision-makers to achieve the best results. In the present work, the main types of RL decisions are identified. Design/methodology/approach: This paper is based on the analysis of mathematical models designed as tools to aid decision making in the field of RL. Once the types of interest work to be analyzed are defined, those studies that really deal about the object of study are searched and analyzed. The decisión variables that are taken at work are identified and grouped according to the type of decision and, finally, are showed the main types of decisions used in mathematical models developed in the field of RL.The principal conclusion of the research is that the most commonly addressed decisions with mathematical models in the field of RL are those related to the network’s configuration, followed by tactical/operative decisions such as the selections of product’s treatments to realize and the policy of returns or prices, among other decisions. Originality/value: The identification of the main decisions types of the reverse logistics will allow the managers of these processes to know and understand them better, while offer an integrated vision of them, favoring the achievement of better results.
[en] Environmental experts support the existence of a new science that includes the environment in its entirety, which try to biosphere, the planet as a whole, and that is directed to the preservation of life with an adequate quality. Within this proceeding we can include the work of a number of inventors, engineers (with wit) and brilliant minds that have been dedicated to create objects and materials intended for improving our quality of life while, at the same time, preserving the environment.
[es]Los expertos en medioambiente apoyan la existencia de una nueva ciencia que contemple el ambiente en su totalidad, que trate de la biosfera, del planeta en su conjunto, y que se dirija a la preservación de la vida con una adecuada calidad. Dentro de ese proceder podemos incluir el trabajo de una serie de inventores, ingenieros (de ingenio) y mentes brillantes que se han dedicado a crear objetos y materiales destinados mejorar nuestra calidad de vida preservando, a su vez, el medioambiente.
[en] A number of adsorbents are available commercially as coatings for SPME fibers but some analytical methodologies might demand specific properties for the extraction of selected compounds, special coatings that have particular volume and a selectivity towards particular analytes. This paper presents a simple, fast, effective and environmental friendly methodology for the determination of accelerants in arson samples using headspace solid-phase micro extraction coupled to gas chromatography. A new fiber prepared by sol-gel method, containing 1:1 molar ratio of octyltriethoxysilane (C8-TEOS): methyltrimethoxysilane (MTMOS) was employed in this technique. The efficiency of the new fiber coating prepared by sol-gel technology for the determination of accelerants was compared to that of commercial PDMS/ DVB fibers. Poly dimethylsiloxane divinylbenzene (PDMS/ DVB) is the most common fiber coating for the extraction of hydrocarbon compounds. Compared with commercial PDMS/ DVB fiber, the new homemade fiber exhibited higher extraction capability and good selectivity for accelerants. The homemade fiber was also applied for the simulated arson samples. The home-made SPME adsorbent was shown to be a good alternative to commercially available fiber for the determination of accelerants in arson cases. (author)
[en] This paper summarises the results of a research project from early 2008, involving the author of this paper, as well as 18 post-graduate University of Liverpool students, in which the quality of European Directive based strategic environmental assessment (SEA) reports of English spatial plan core strategies (conducted within the context of the spatial planning sustainability appraisal-SA-regime) was reviewed. The project aimed at establishing the extensiveness of emerging spatial plan related SEA practice, as well as highlighting shortcomings and problems. Overall, it was found that whilst some aspects of assessment were done well, others were not of a satisfactory quality. Shortcomings were connected particularly with the practice of listing potentially relevant baseline documents and data without distinguishing sufficiently between those that are important in terms of significant impacts and those that are not. Problems were also found to exist with the evaluation of options and impacts, the consideration of substantive aspects, such as health, as well as regarding the formulation of final recommendations and monitoring.
[en] 1st International Conference on Combustion, Incineration/ Pyrolysis and Emission Control: Waste to Wealth was conducted in Korea Science and Technology Center, Seoul, Republic of Korea 10 years ago. This conference was a placed for scientist all over the world discussed more on topics about waste and so on. Major topic such as waste incineration technology improvements, fundamental process characteristics, applications to wastes, biomass and other fuels, conventional and new approaches in combustion technology, economics of waste management, advanced emission control systems, greenhouse gas control and technologies that convert waste to wealth. From the 1st to 5th conference, there are increasing on number of participation that participated. In 5th edition in Chiang Mai, Thailand, 150 participants with 170 papers were presented. So, with this conference will be going on, there are more chances for scientist on this field to make their research and presented to make sure all of the objectives of these conference was achieved.
[en] The fourth edition of the SCK-CEN Barometer was established in May-June 2011. It continued the historical follow-up of topics such as risk perception and confidence in authorities, and addressed a number of issues in detail, among which: attitude towards nuclear technologies, confidence in the management of nuclear technologies, stakeholder participation, the accident at Fukushima and the management of high level radioactive waste. This report presents a general overview of the results.