Environmental Critical Level
Mostrando 1-12 de 64 artigos, teses e dissertações.
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1. Surface and vertical dimensional changes of mineral trioxide aggregate and biodentine in different environmental conditions
Abstract Surface changes in biological environments are critical for the evaluation of physical and biological activity of biomaterials. Objective: This study investigated surface alterations of calcium silicate-based cements after exposure to different environments. Material and Methods: Forty-eight cylindrical cavities were prepared on root surfaces. The c
J. Appl. Oral Sci.. Publicado em: 10/12/2018
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2. Do container size and predator presence affect Culex (Diptera: Culicidae) oviposition preferences?
ABSTRACT Organisms with complex life cycles typically do not exhibit parental care. Hence, the ability of adult females to choose quality oviposition sites is critical for offspring success. Gravid females of many insect taxa have the capability to detect environmental conditions in water-holding containers (e.g., resource level, presence of competitors or p
Rev. Bras. entomol.. Publicado em: 2018-01
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3. Percepciones de docentes y directores sobre los factores que promueven u obstaculizan la educación ambiental en escuelas del Área Metropolitana de Buenos Aires
Abstract: The paper examines the perceptions of teachers and directors regarding the factors that promote or constrain complex environmental education, which generates knowledge, with participatory devices and oriented to equity in educational institutions in Metropolitan Area of Buenos Aires (Argentina). As result, we detected heterogeneous experiences and
Ciênc. educ. (Bauru). Publicado em: 2016-12
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4. Procedimiento para la evaluación del desempeño ambiental: aplicación em el sector energético cubano
The present article proposes a structured approach to assessing environmental performance through a procedure that establishes a course of action to complete the evaluation of corporate environmental performance, integrating environmental indicators that respond to major policies and strategies. The proposal aims to present theoretical contributions to the a
Gest. Prod.. Publicado em: 29/09/2015
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5. ESTABLECIMIENTO AGROPRODUCTIVO ECOLOGICO VS. AGRICULTURA CONVENCIONAL: PARTIDO DE TANDIL, PROVINCIA DE BUENOS AIRES
ABSTRACT In Argentina, in recent decades, a process known as “agriculturization” has been generated with various environmental impacts. This has led to introducing more sustainable farming models. This paper aims to analyze the sustainability of a rural facility dedicated to organic farming in comparison with conventional agricultural systems located in
Soc. nat.. Publicado em: 2015-08
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6. Presencia de Hydrochoerus hydrochaeris (Hydrochoeridae, Rodentia, Mammalia) en la cuenca del río Carcarañá, Santa Fe, Argentina: Comentarios acerca de su conservación y biogeografía en Argentina
Capybara (Hydrochoerus hydrochaeris) is the world largest rodent and a typical mammal of the phytogeographical provinces of Pampa and Espinal, inhabiting the eastern sector of the same. These regions have been categorized by the World Wildlife Foundation (WWF) as "critical/ endangered threatened" and are assigned the highest priority level of conservation as
Pap. Avulsos Zool. (São Paulo). Publicado em: 2014
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7. Evaluation of the environmental sustainability of massive forestry fragments of the coastal plain and lower slopes of Bertioga (SP) / Avaliação da sustentabilidade ambiental dos fragmentos de maciços florestais da planície costeira e baixa encosta do município de Bertioga (SP)
The São Paulo coastal zone alternates extensive zones of great diversity of biotopes with others intensively degradated. These characteristics are observed in the municipality of Bertioga and its forest regions localized among Itaguaré and Guaratuba river basins. Due to their special characteristics these basins are denominated Bertioga System. The aim of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/11/2012
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8. Spatial patterns of zooplanktivore Chirostoma species (Atherinopsidae) during water-level fluctuation in the shallow tropical Lake Chapala, Mexico: seasonal and interannual analysis
This study addresses the influence of water-level fluctuations on fish distribution at two temporal scales: seasonal (dry and rainy) and interannual (low and high volume conditions). The analysis of abundance relationships among three zooplanktivore Chirostoma species at fifteen sites in Lake Chapala, Mexico, revealed the significant influence of contrasting
Neotropical Ichthyology. Publicado em: 2011
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9. Diretrizes para implantação da governança de TI no setor público brasileiro á luz da teoria institucional
The IT area has become crucial to business for support, sustainability and growth, but the pervasive use of information technology created a critical dependency of organizations on IT, requiring a focus on IT Governance. Despite the recommendations of internal and external control agencies of the Brazilian Federal Public Administration, few initiatives are s
Publicado em: 2010
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10. Factors associated with seropositivity for anti-Toxoplasma gondiiantibodies in pregnant women of Londrina, Paraná, Brazil
The aim of this study was to evaluate associations between seropositivity for IgG and IgM anti-Toxoplasma gondii antibodies and socio-economic and environmental variables in pregnant women of Londrina, state of Paraná, Brazil. We interviewed 492 pregnant women, each of whom answered an epidemiological questionnaire, and collected blood samples for measureme
Memórias do Instituto Oswaldo Cruz. Publicado em: 2009-03
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11. Questões ambientais na formação profissional em automobilística: uma análise à luz do movimento CTSA e da educação ambiental de percepções docentes e discentes. / Environmental issues in vocational training in automotive: a review in light of the movement of the CTSA and perceptions of environmental education teachers and students.
The importance that is given to the relationship among science, technology, society and environment has been leading, more and more, to the valorization of an educational approach that links specific contents to political, economical and cultural aspects. In Brasil, environmental issues have found a place in the professional education at secondary level, wit
Publicado em: 2009
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12. Waste management focousing on industrial sustainability study case: petrochemical industries in Rio de Janeiro state / Gerenciamento de resíduos buscando a sustentabilidade industrial estudo de caso: indústrias petroquímicas localizadas no estado do Rio de Janeiro
This research has the aim of evaluating environmental management systems of five petrochemical industries in the State of Rio de Janeiro. This studys main focus is on the management of solid and liquid wastes which are generated during producing processes and the commitment with Brazilian laws applied to environmental protection. Following the development on
Publicado em: 2009