Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 6
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Adoption of Clean Leather-Tanning Technologies in Mexico AgEcon
Blackman, Allen.
In many developing countries, a host of financial, institutional, and political factors hamstring conventional environmental regulation. Given these constraints, a promising strategy for controlling pollution is to promote the voluntary adoption of clean technologies. Although this strategy has received considerable attention in policy circles, empirical research on the adoption of clean technologies in developing countries is limited. This paper presents historical background and original survey data on the adoption of five clean tanning technologies by a sample of 137 leather tanneries in Leon, Guanajuato, Mexico, a city where tanneries have serious environmental impacts and conventional environmental regulation has repeatedly failed to mitigate the...
Tipo: Working or Discussion Paper Palavras-chave: Clean technology; Leather tanning; Developing country; Mexico; Environmental Economics and Policy; Q53; Q55; Q56; 013; 033.
Ano: 2005 URL: http://purl.umn.edu/10881
Imagem não selecionada

Imprime registro no formato completo
Clean Technological Change in Developing-Country Industrial Clusters: Mexican Leather Tanning AgEcon
Blackman, Allen; Kildegaard, Arne.
In many developing country cities, clusters of small and medium enterprises create severe pollution problems. Because conventional regulatory approaches are typically ineffective in such situations, policy responses have increasingly focused on promoting voluntary clean technological change. Yet the data and analysis needed to guide such efforts are scarce. This paper uses original firm-level survey data on a cluster of small- and medium-scale leather tanneries in Leon, Guanajuato -Mexico's leather capital-to econometrically identify the factors that drive the adoption of two clean tanning technologies. Using a multivariate probit model to estimate a system of seemingly unrelated regressions, we find-in contrast to conventional wisdom-that neither firm...
Tipo: Working or Discussion Paper Palavras-chave: Clean technology; Developing country; Small and medium enterprises; Mexico; Multivariate probit; Research and Development/Tech Change/Emerging Technologies.
Ano: 2004 URL: http://purl.umn.edu/10545
Imagem não selecionada

Imprime registro no formato completo
Community Pressure and Clean Technology in the Informal Sector: An Econometric Analysis of the Adoption of Propane by Traditional Mexican Brickmakers AgEcon
Blackman, Allen; Bannister, Geoffrey J..
In many developing countries the informal sector, comprised of low-technology unlicensed micro-enterprises, is a major source of pollution. Environmental management in this sector is exceptionally challenging. Though clean technologies offer a means of mitigating the problem, to our knowledge there has been no rigorous empirical research on why informal (or even small-scale) firms do and do not adopt them. As a first step towards filling this gap, this paper presents the results of an econometric analysis of the diffusion of propane among informal 'traditional' brickmakers in Cd. Juárez, Mexico--a leading source of air pollution owing to their reliance on cheap, highly polluting fuels such as used tires and scrap wood. The two key policy implications of...
Tipo: Working or Discussion Paper Palavras-chave: Environment; Community pressure; Clean technology; Informal sector; Technology adoption; Brickmaking; Mexico; Environmental Economics and Policy; O17; O22; O33; Q25; C25; L61.
Ano: 1998 URL: http://purl.umn.edu/10529
Imagem não selecionada

Imprime registro no formato completo
Obtaining anthocyanin-rich extracts from frozen açai (Euterpe oleracea Mart.) pulp using pressurized liquid extraction Ciênc. Tecnol. Aliment.
ALCÁZAR-ALAY,Sylvia Carolina; CARDENAS-TORO,Fiorella Patricia; OSORIO-TOBÓN,Juan Felipe; BARBERO,Gerardo Fernandez; MEIRELES,María Angela de Almeida.
Abstract Açai is considered a functional food, and in addition to being a source of energy and fiber, it is a valuable source of bioactive compounds such as anthocyanins, minerals and fatty acids. In the present work, antioxidant-rich extracts from açai pulp were obtained using pressurized liquid extraction (PLE). The effects of the independent variables, including solvent type (pure ethanol and ethanol/water (50:50 v/v)), citric acid (0 and 0.3%, w/w), pressure (20 and 80 bar) and temperature (30 and 60 °C) were evaluated using a full factorial design. The extraction was affected primarily by the solvent type and the citric acid percentage. The results indicate that the maximum overall yield (X0) was 64± 9 (%, d.b.) when the process was performed using...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Flavonoids; Phenolic compounds; Antioxidant; Biocompounds recovery; Clean technology.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612017000500048
Imagem não selecionada

Imprime registro no formato completo
Optimal Investment in Clean Production Capacity AgEcon
Fischer, Carolyn; Toman, Michael; Withagen, Cees.
For the mitigation of long-term pollution threats, one must consider that both the process of environmental degradation and the switchover to new and cleaner technologies are dynamic. We develop a model of a uniform good that can be produced by either a polluting technology or a clean one; the latter is more expensive and requires investment in capacity. We derive the socially optimal pollution stock accumulation and creation of nonpolluting production capacity, weighing the tradeoffs among consumption, investment and adjustment costs, and environmental damages. We consider the effects of changes in the pollution decay rate, the capacity depreciation rate, and the initial state of the environment on both the steady state and the transition period. The...
Tipo: Working or Discussion Paper Palavras-chave: Pollution accumulation; Clean technology; Capacity investment; Environmental Economics and Policy; Q2; Q42.
Ano: 2002 URL: http://purl.umn.edu/10622
Imagem não selecionada

Imprime registro no formato completo
Ozone: an emerging technology for the seafood industry BABT
Gonçalves,Alex Augusto.
In recent years, increasing attention has been focused on the safety of foods, and in particular on the intervention methods to reduce and eliminate human pathogens from fresh product, especially fresh seafood. Traditional technology utilizes water with or without a sanitizing agent to wash fresh seafood. Chlorine is the most widely used sanitizing agent available for fresh product, but it has a limited effect in killing bacteria on seafood surfaces. An alternative treatment is being sought to improve food safety. Many research and industrial trials are underway to validate the use of ozone in the food industry. This article intends to show a clean technology to be applied in seafood industry and to show that many studies must be done to demonstrate the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Clean technology; Ozone; Seafood.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600025
Registros recuperados: 6
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional