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Materials. --- Materials. --- Substitute products. --- Substitute products.
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"One of the recurring themes in the sustainability literature has been the legitimacy of using an economic framework to account for natural resources. This paper examines the potential for substituting between different inputs in the generation of income, where the inputs include natural resources such as land and energy resources. A nested constant elasticity of substitution (CES) production function is used to allow flexibility in the estimated elasticities of substitution. Also, with this specification, natural resources and other inputs are combined in different levels of the function, thus allowing for different levels of substitutability. Institutional and economic indicators are also incorporated in the production function estimated. Results show that the elasticities derived from functions involving land resources were generally around one or greater, implying a fairly high degree of substitutability. Furthermore, changes in trade openness and private sector investment have a statistically significant and direct relationship with income generation. No statistically significant relationship between income and any of the institutional indicators was found. "--World Bank web site.
Natural resources. --- Substitute products. --- Substitution (Economics)
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"One of the recurring themes in the sustainability literature has been the legitimacy of using an economic framework to account for natural resources. This paper examines the potential for substituting between different inputs in the generation of income, where the inputs include natural resources such as land and energy resources. A nested constant elasticity of substitution (CES) production function is used to allow flexibility in the estimated elasticities of substitution. Also, with this specification, natural resources and other inputs are combined in different levels of the function, thus allowing for different levels of substitutability. Institutional and economic indicators are also incorporated in the production function estimated. Results show that the elasticities derived from functions involving land resources were generally around one or greater, implying a fairly high degree of substitutability. Furthermore, changes in trade openness and private sector investment have a statistically significant and direct relationship with income generation. No statistically significant relationship between income and any of the institutional indicators was found. "--World Bank web site.
Natural resources. --- Substitute products. --- Substitution (Economics)
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Asbestos substitutes --- Asbestsubstituten --- Succédanés d'amiante --- Substitute products --- Asbestos substitutes.
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This book presents state-of-the-art coverage of synthesis of advanced functional materials. Unconventional synthetic routes play an important role in the synthesis of advanced materials as many new materials are metastable and cannot be synthesized by conventional methods. This book presents various synthesis methods such as conventional solid-state method, combustion method, a range of soft chemical methods, template synthesis, molecular precursor method, microwave synthesis, sono-chemical method and high-pressure synthesis. It provides a comprehensive overview of synthesis methods and covers a variety of materials, including ceramics, films, glass, carbon-based, and metallic materials. Many techniques for processing and surface functionalization are also discussed. Several engineering aspects of materials synthesis are also included.
Synthetic products. --- Chemistry, Technical --- Commercial products --- Chemurgy --- Substitute products
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Chemistry, Technical --- Chemistry, Technical. --- Chemistry. --- Chemistry. --- Chemistry. --- Chimie. --- Substitute products --- Substitute products. --- Synthetic products --- Synthetic products. --- chemistry.
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"Historically, regulations governing chemical use have often focused on widely used chemicals and acute human health effects of exposure to them, as well as their potential to cause cancer and other adverse health effects. As scientific knowledge has expanded there has been an increased awareness of the mechanisms through which chemicals may exert harmful effects on human health, as well as their effects on other species and ecosystems. Identification of high-priority chemicals and other chemicals of concern has prompted a growing number of state and local governments, as well as major companies, to take steps beyond existing hazardous chemical federal legislation. Interest in approaches and policies that ensure that any new substances substituted for chemicals of concern are assessed as carefully and thoroughly as possible has also burgeoned. The overarching goal of these approaches is to avoid regrettable substitutions, which occur when a toxic chemical is replaced by another chemical that later proved unsuitable because of persistence, bioaccumulation, toxicity, or other concerns. Chemical alternative assessments are tools designed to facilitate consideration of these factors to assist stakeholders in identifying chemicals that may have the greatest likelihood of harm to human and ecological health, and to provide guidance on how the industry may develop and adopt safer alternatives. A Framework to Guide Selection of Chemical Alternatives develops and demonstrates a decision framework for evaluating potentially safer substitute chemicals as primarily determined by human health and ecological risks. This new framework is informed by previous efforts by regulatory agencies, academic institutions, and others to develop alternative assessment frameworks that could be operationalized. In addition to hazard assessments, the framework incorporates steps for life-cycle thinking - which considers possible impacts of a chemical at all stages including production, use, and disposal - as well as steps for performance and economic assessments. The report also highlights how modern information sources such as computational modeling can supplement traditional toxicology data in the assessment process. This new framework allows the evaluation of the full range of benefits and shortcomings of substitutes, and examination of tradeoffs between these risks and factors such as product functionality, product efficacy, process safety, and resource use. Through case studies, this report demonstrates how different users in contrasting decision contexts with diverse priorities can apply the framework. This report will be an essential resource to the chemical industry, environmentalists, ecologists, and state and local governments."--Publisher's description.
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Hoe grondig de beheersing van de spraakkunst, zinsbouw en spelling van een vreemde taal ook is, dit is nog geen garantie voor een voldoende kennis van de taal in kwestie. De buitenlander zal tot de ontdekking komen dat hij in de praktijk onvoldoende kennis heeft van bepaalde zegswijzen en uitdrukkingen om zich vlot te kunnen uitdrukken. De opzet van dit boek is aan dit euvel te verhelpen. Een grondige studie van het idiomaticum zal leiden tot een rijkere taalbeheersing en een vlotter uitdrukkingsvermogen. (Bron: www.academiapress.be)
Narcotic habit --- Treatment --- Opium abuse --- Substitute products --- Therapeutic use --- E110072.jpg --- Spaans
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These proceedings contain all the presentations from iSmithers' seventh international conference for the latex and emulsion industry. From coatings to carpets to condoms, this conference provided the essential update on the latest trends and developments in natural rubber latex, aqueous synthetic polymer latices, processing chemicals and additives, latex-based products and relevant legislation.
Latex --- Synthetic products --- Chemistry, Technical --- Commercial products --- Chemurgy --- Substitute products --- Plant exudates
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