RESUMO

Ecosystem management requires a systematic, holistic approach that considers ecological and social outcomes. Effective restoration practices promote a balance of ecological and social goals by addressing ecological integrity, efficiently maximizing benefits while minimizing investment, and encompassing collaborative stakeholder engagement. Socio-ecological assessments can inform adaptive management and be utilized to prioritize restoration activities and monitor restoration effectiveness. In estuarine systems, socio-ecological assessments should evaluate the ability of habitats to support both ecologically and locally important species. The composite measure presented utilizes a combination of ecological and social measures to characterize ecological suitability for individual and multiple Gulf of Mexico estuarine species. The ecological suitability value (ES) for a given spatial unit is based on a suite of biophysical measures of the quality and extent of suitable habitat for each species, the species' trophic importance in a food web context, and the importance of each species in relation to stakeholder values and benefits. ES values for individual spatial units can be aggregated to estimate the distribution of ecological suitability at the estuarine scale. The ES values are calculated using examples for each step in the process. The information provided by ecological suitability characterizations can support restoration prioritization decisions for Gulf of Mexico estuaries and can provide a baseline measure to gauge restoration effectiveness over time to inform cumulative restoration assessments.

RESUMO

The economic costs of non-indigenous species (NIS) are a key factor for the allocation of efforts and resources to eradicate or control baneful invasions. Their assessments are challenging, but most suffer from major flaws. Among the most important are the following: (1) the inclusion of actual damage costs together with various ancillary expenditures which may or may not be indicative of the real economic damage due to NIS; (2) the inclusion of the costs of unnecessary or counterproductive control initiatives; (3) the inclusion of controversial NIS-related costs whose economic impacts are questionable; (4) the assessment of the negative impacts only, ignoring the positive ones that most NIS have on the economy, either directly or through their ecosystem services. Such estimates necessarily arrive at negative and often highly inflated values, do not reflect the net damage and economic losses due to NIS, and can significantly misguide management and resource allocation decisions. We recommend an approach based on holistic costs and benefits that are assessed using likely scenarios and their counter-factual.

Assuntos

RESUMO

Resumo A temática irresponsabilidade social empresarial (IrSE) ganhou destaque na literatura mundial. No Brasil, o desastre causado pela Samarco Mineração S.A. em 2015 foi alvo de repercussão, constituindo uma oportunidade para estudar a IrSE. O objetivo deste estudo foi investigar se a identificação social com a empresa, que surge em função dos benefícios econômicos, reduz a intenção punitiva e a atribuição de culpa. O instrumento de pesquisa contém escalas com indicadores psicométricos aplicados a 1.616 indivíduos. Constatou-se que os benefícios para a economia local reduziram a intenção punitiva nas cidades de Anchieta-ES, Guarapari-ES e Mariana-MG. O que não ocorreu nas cidades de Colatina-ES e Linhares-ES, que não recebem benefícios econômicos, mas foram afetadas pelo desastre. Identificou-se, ainda, que a severidade do evento aumentou a atribuição de culpa e a intenção punitiva aumentou a intenção de comentários negativos. Como principal conclusão, onde a empresa gerou benefícios, as pessoas estavam menos propensas a puni-la.

Resumen La temática irresponsabilidad social empresarial (IrSE) ganó prominencia en la literatura mundial. En Brasil, el desastre causado por Samarco Mineração S.A. en 2015 fue objeto de repercusión, constituyendo una oportunidad para estudiar la IrSE. El objetivo de este estudio fue investigar si la identificación social con la empresa, que surge en función de los beneficios económicos, reduce la intención punitiva y la atribución de culpa. El instrumento de investigación contiene escalas con indicadores psicométricos aplicados a 1.616 individuos. Se constató que los beneficios para la economía local redujeron la intención punitiva en las ciudades de Anchieta, ES; Guarapari, ES y Mariana, MG. Lo que no ocurrió en las ciudades de Colatina, ES y Linhares-ES, que no reciben beneficios económicos y fueron afectadas por el desastre. Se identificó además que la severidad del acontecimiento aumentó la atribución de culpa y la intención punitiva aumentó la intención de comentarios negativos. Como conclusión, donde la empresa generó beneficios, la gente estaba menos propensa a castigarla.

Abstract The issue of corporate social irresponsibility (CSIR) has gained prominence in world literature. This study analyzes the 2015 environmental disaster caused by Samarco Mineração S.A. in Mariana (MG), Brazil, as an example of CSIR. The objective was to understand whether the population's social identification with the company, which is translated into the economic benefits, reduced punitive intention, and blame attribution. The research instrument uses scales with psychometric indicators applied to 1,616 individuals. It was verified that the benefits to the local economy reduced the punitive intention in the municipalities of Anchieta and Guarapari (ES), and Mariana (MG). This was not the case for Colatina and Linhares (ES). Also, it was observed that the disaster's severity increased blame attribution, and the punitive intention increased the intention to engage in negative word-of-mouth (WOM) about the company. As the main conclusion, people were less likely to punish the company in the municipalities where it generated economic benefits.

Assuntos

RESUMO

Shark ecotourism has the potential to contribute significantly to local and national economies and conservation, though this depends on a concerted effort to implement evidence-based management. Sharks are key attractions at some of the most important marine ecotourism sites throughout Mexico, focusing particularly on whale sharks, white sharks, hammerhead sharks, and several other reef-associated and pelagic species. This generates important employment opportunities and millions of USD in revenue, but truly implementing ecotourism requires that education and conservation be a part of activities and that these benefit local communities, so that the industry can be socially, economically and ecologically sustainable. In Mexico, this includes addressing potential negative impacts from vessel overcrowding, provisioning, inequitable distribution of ecotourism and conservation benefits and costs, and a broader lack of governance capacity to ensure that coastal development is environmentally sustainable and socially equitable. In the context of a Blue Economy centred on sustainability and local benefits, ecotourism provides a key incentive and opportunity to improve ocean management.

Assuntos

RESUMO

Las aves y mamíferos constituyen la principal fuente de proteína animal para las poblaciones humanas originarias de la selva amazónica. La carne es destinada a la alimentación y otras partes del cuerpo son utilizadas en artesanías, adornos y objetos de uso cotidiano. Considerando el aprovechamiento y uso de la fauna, los objetivos del estudio fueron a) identificar las especies de aves y mamíferos aprovechadas por las poblaciones locales, b) determinar el uso de las aves y mamíferos, y c) calcular el valor económico de la biomasa extraída. Se realizó el registro del aprovechamiento de especies, mediante encuestas y la información recopilada fue sistematizada. Como resultado se encontró que en el Bajo Urubamba se aprovechan 10 especies de aves y 12 de mamíferos. El paujil (Mitu tuberosum) y las perdices (Crypturellus sp. y Tinamus tao) son las aves más aprovechadas. Se identificaron al majáz (Cuniculus paca), venado rojo (Mazama americana) y tapir o sachavaca (Tapirus terrestris) como los mamíferos con mayor biomasa extraída. El principal uso de la diversidad capturada es la alimentación de subsistencia.

Birds and mammals are the most important resource of protein for original groups of the amazon rainforest. Most of the meat is used for food and other parts of the animals are designates for the production of handicrafts, ornaments and other daily objects. Considering the use and exploitation of the fauna, the objectives of this study were: a) to identify the species of birds and mammals used by the local population; b) to determine what the uses of this animal are, and c) to calculate the economic value of the biomass extracted. We registered the exploitation and use of the species through surveys between the families. All the information was recorded, analyzed and systematized. We found that in the Lower Urubamba River, local families use 10 species of birds and 12 species of mammals. Paujil (Mitu tuberosum), Tinammus (Crypturellus sp. and Tinamus tao) are the species more commonly used. The lowland pacca (Cuniculus paca), Red brocket deer (Mazama americana) and tapir (Tapirus terrestris) are the mammals with the more extracted biomass. The most important use of these animals is for food (as meat) for subsistence of the families.

RESUMO

The challenges associated with the availability of fossil fuels in the past decades intensified the search for alternative energy sources, based on an ever-increasing demand for energy. In this context, the application of anaerobic digestion (AD) as a core treatment technology in industrial plants should be highlighted, since this process combines the pollution control of wastewaters and the generation of bioenergy, based on the conversion of the organic fraction to biogas, a methane-rich gaseous mixture that may supply the energetic demands in industrial plants. In this context, this work aimed at assessing the energetic potential of AD applied to the treatment of stillage, the main wastewater from ethanol production, in an attempt to highlight the improvements in the energy balance ratio of ethanol by inserting the heating value of methane as a bioenergy source. At least 5-15% of the global energy consumption in the ethanol industry could be supplied by the energetic potential of stillage, regardless the feedstock (i.e. sugarcane, corn or cassava). The association between bagasse combustion and stillage anaerobic digestion in sugarcane-based distilleries could provide a bioenergy surplus of at least 130% of the total fossil fuel input into the ethanol plant, considering only the energy from methane. In terms of financial aspects, the economic gains could reach US$ 0.1901 and US$ 0.0512 per liter of produced ethanol, respectively for molasses- (Brazil) and corn-based (EUA) production chains. For large-scale (∼1000 m(3)EtOH per day) Brazilian molasses-based plants, an annual economic gain of up to US$ 70 million could be observed. Considering the association between anaerobic and aerobic digestion, for the scenarios analyzed, at least 25% of the energetic potential of stillage would be required to supply the energy consumption with aeration, however, more suitable effluents for agricultural application could be produced. The main conclusion from this work indicates that anaerobic processes should be considered the core technology to treat stillage, based mainly on the attractive relation energy generation-financial return and on the possibility to keep the advantages inherent to the common fertigation when using the treated effluent in agriculture.

Assuntos

RESUMO

A latenciação é uma importante ferramenta no processo de desenvolvimento de fármacos, pois através dela, diversas barreiras biológicas que limitam o uso de um agente terapêutico podem ser superadas. Assim, esta estratégia permite a reintrodução de substâncias anteriormente descartadas por suas propriedades indesejáveis e o aprimoramento de novos fármacos, antes mesmo que sejam lançados na terapêutica. Embora a latenciação apresente vantagens clínicas, não existem estudos demonstrando a vantagem econômica do uso de pró-fármacos em relação às substâncias precursoras. Dessa forma, o objetivo do presente trabalho foi elaborar um perfil comparativo do custo do tratamento entre pró-fármacos e seus respectivos fármacos precursores, disponíveis no mercado farmacêutico brasileiro, visando demonstrar a real importância da latenciação como ferramenta norteadora para o desenvolvimento de fármacos e, principalmente, a viabilidade financeira do uso de pró-fármacos. Constatou-se que seis do total de pró-fármacos analisados apresentaram-se financeiramente mais vantajosos que os seus precursores e, mesmo para os pró-fármacos que tiveram custo mais elevado, a vantagem clínica alcançada justifica sua utilização.

Prodrug design is an important tool in the drug discovery process, since many biological barriers that limit the use of a drug may be overcome by a prodrug precursor. This strategy allows the improvement of new drugs before they are marketed and also enables the reintroduction of substances previously discarded for their undesirable properties. Although clinical advantages of prodrug design are well-established, there are no studies demonstrating the economic benefits of using prodrugs rather than the intended drugs. The aim of this study was to elaborate a technical report on the relative cost of treatments carried out with prodrugs or with the related drugs. This study was intended to demonstrate the real importance of prodrug design as a guiding tool for drug development and the financial viability of the use of prodrugs. It was found that six of the analyzed prodrugs were financially advantageous compared to the actual drugs and that, even for the prodrugs that had a higher cost, the clinical advantage justified their therapeutic use.

Assuntos

RESUMO

Los cultivos transgénicos, biotecnológicos o genéticamente modificados (GM) son el resultado de la aplicación de la tecnología del ADN recombinante en agricultura. Este tipo de organismos se constituyen con la transferencia de genes foráneos (transgenes) de cualquier origen biológico (animal, vegetal, microbiano, viral) al genoma de especies cultivadas de plantas. Los cultivos GM se utilizan en el mundo desde 1996 y en diciembre de 2010 se llegó a mil millones de hectáreas, sembradas en todo el periodo. En solo el pasado año 2010 se sembraron 148 millones de hectáreas, cultivadas por 15,4 millones de agricultores en 29 países. Los cultivos GM que se usan en agricultura global son principalmente soya, algodón, maíz y colza, que expresan transgenes derivados de bacteria y que confieren resistencia a insectos lepidópteros (RIL) o, tolerancia a algunos herbicidas (TH) como glifosato y glufosinato de amonio. Las primeras variedades transgénicas contenían solo un transgen de interés, o evento simple, mientras que las variedades actuales expresan varios transgenes, o eventos apilados, que en algunos casos confieren resistencia a diferentes especies de insectos lepidópteros y coleópteros, así como tolerancia a dos tipos diferentes de herbicidas. Para el año 2009 se sembraron en Colombia, 18.874 hectáreas de cultivos GM de algodón, 16.793 hectáreas de cultivos GM de maíz, y cerca de cuatro hectáreas de cultivos GM de clavel y rosas. Maíz y algodón se sembraron en los departamentos de Sucre, Cesar, Córdoba, Huila y Tolima. Solo maíz en los departamentos de Antioquia, Valle del Cauca, Meta, Cundinamarca y Santander, y clavel y rosas en el departamento de Cundinamarca. Las variedades transgénicas de maíz y algodón, expresan características RIL y TH, como eventos simples o como eventos apilados. En el caso de clavel y rosa, se trata de genotipos que expresan color azul. Desde la academia se ha tratado de organizar el debate sobre la adopción de los cultivos GM, alrededor del análisis ponderado de los riegos biológicos y beneficios ambientales y económicos. Los riesgos biológicos se definen por los posibles efectos negativos sobre consumidor humano o ambiente en que se liberan. Los beneficios ambientales tienen que ver con los efectos de la reducción en el uso de agroquímicos (insecticidas y herbicidas), y beneficios económicos con la reducción en las pérdidas debidas al ataque de insectos y a la competencia de malezas, así como a la reducción de costos de producción.

The transgenic crops were the result of the application of recombinant DNA technology in agriculture. These crops were developed by transfer of foreign genes (transgenes) from any biological origin (animal, plant, microbial, viral) to the genome of cultivated species of plants. The crops genetically modified (GM) have been used in the world since 1996; up to December 2010 they counted to a billion hectares planted throughout the period. In just the past year 2010 148 million hectares were planted, grown by 15.4 million farmers in 29 countries. GM crops that are used in global agriculture are mainly soybean, cotton, corn and canola, which express transgenes derived from bacteria, and confer resistance to lepidopteran insects (ILR) or herbicide tolerance (HT; glyphosate and glufosinate ammonium). The first transgenic varieties containing only a single transgene, or simple event, while the current varieties express several transgenes, or stacked, confereing resistance to different species of Lepidoptera and Coleopteran insects and tolerance to two different herbicides. In 2010 were planted in Colombia, 18.874 hectares of GM cotton, 16.793 hectares of GM corn, and 4 hectares of GM carnations and GM roses. GM corn and GM cotton were planted in Sucre, Cesar, Cordoba, Huila and Tolima. GM corn was planted in Antioquia, Valle del Cauca, Meta, Cundinamarca and Santander. Carnations and roses were planted in Cundinamarca. GM maize and GM cotton expressing ILR and HT features, as simple events or stacked. In the case of GM carnation and GM roses, these genotypes that express the color blue. Academia has tried to organize the debate on the adoption of GM crops around the analysis of biological risks and environmental vs environmental and economic benefits. Biological hazards are defined by the possible negative effects on human consumers or negative effects on the environment. The environmental benefits are related to reduce use of agrochemicals (insecticides and herbicides), and the economic benefits from the reduction in losses due to insect and weed competition to reduction of production costs.