Environment Contamination
Mostrando 13-24 de 356 artigos, teses e dissertações.
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13. KINETICS OF THE BIODEGRADATION OF MONOAROMATICS BY Pseudomonas aeruginosa
ABSTRACT Water contamination by monoaromatic compounds has risen throughout time, which leads to the necessity of developing new water treatment technology, capable of minimizing their negative effect on the environment. In this context, biological processes present themselves as a solution to the processes of extraction. Bioremediation makes use of microbia
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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14. RELAÇÕES DE PRODUÇÃO, TRABALHO, AMBIENTE E SAÚDE em COMPLEXO AUTOMOTIVO MULTINACIONAL EM PERNAMBUCO
Resumo O estudo que originou este artigo, realizado entre 2015 e 2017, busca a compreensão de possíveis relações no âmbito produtivo, ambiental e sanitário na cidade de Goiana, Pernambuco, diante da chegada do empreendimento multinacional da Fiat Chrysler Automobiles. Objetivou-se construir uma matriz explicativa com base no framework força motriz-pre
Trab. educ. saúde. Publicado em: 15/07/2019
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15. Pyrite utilization in the carboniferous region of Santa Catarina, Brazil - Potentials, challenges, and environmental advantages
Abstract The main coal seams explored in the coal region of Santa Catarina are Barro Branco (BB) and Bonito (BO). Owing to the association with the mineral matter, the tailings generated in the beneficiation are arranged in disposal areas, and subject to the generation of acid mine drainage (AMD). The objective of this study was to evaluate the use of pyrite
REM, Int. Eng. J.. Publicado em: 19/06/2019
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16. Microbial species associated with dental caries found in saliva and in situ after use of self-ligating and conventional brackets
Abstract Objectives Enamel demineralization is among the main topics of interest in the orthodontic field. Self-ligating brackets have been regarded as advantageous in this aspect. The aim of this study was to evaluate the break homeostasis in the oral environment and the levels of microorganisms associated with dental caries among the different types of b
J. Appl. Oral Sci.. Publicado em: 11/04/2019
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17. Condições da prestação dos serviços ambientais de coleta e destinação de resíduos de serviços de saúde em unidades básicas de saúde na cidade de Pelotas, RS, Brasil
RESUMO Os resíduos de serviços de saúde (RSSs), quando destinados inadequadamente, podem oferecer riscos ao meio ambiente e à saúde da população e de trabalhadores das áreas da saúde e de limpeza, tornando necessário um gerenciamento correto tanto intra quanto extraunidade. Quanto a esses resíduos, duas legislações se destacam: a Resolução da
Eng. Sanit. Ambient.. Publicado em: 21/03/2019
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18. Quantification study of Azithromycin drugs in soil, by the infrared technique with Fourier Transform (IFTR)
Resumo Algumas classes de drogas representam maior criticidade como contaminação ambiental; os antibióticos em geral representam os contaminantes mais potentes e que causam maiores danos ao meio ambiente. O objetivo deste trabalho é quantificar a porcentagem de contaminação do solo por Azitromicina em apresentações de 500 mg, através da aplicação
Rev. Ambient. Água. Publicado em: 04/02/2019
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19. Ocorrência de Campylobacter e Enterobacteriaceae em aves silvestres e frangos de corte
RESUMO As aves silvestres podem ser reservatório de bactérias patogênicas e atuar como veiculadoras desses microrganismos para o ambiente, os animais domésticos e o homem. Portanto, o objetivo deste trabalho foi verificar a ocorrência de Campylobacter spp., Yersinia enterocolitica e Salmonella enterica em aves silvestres capturadas nas áreas próximas
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2019-02
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20. Synergy between cadmium and zinc in bean plants cultivated in multi contaminated soils
ABSTRACT. Agricultural species are subjected to a variety of biotic and abiotic stresses, which are the main limitations to crop production. In this context, contamination by trace elements is characterized as an abiotic stress that represents an environmental problem. Due to the physical and chemical similarities between cadmium and zinc, these elements may
Acta Sci., Agron.. Publicado em: 17/12/2018
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21. ESPECIAÇÃO DINÂMICA DE METAIS TRAÇO EM AMBIENTE AQUÁTICO USANDO CRONOPOTENCIOMETRIA DE REDISSOLUÇÃO ANÓDICA
The contamination of natural environments by trace metals has several adverse effects on human health, which is mainly due to the high toxicity, persistence and reactivity of these species in the environment. To understand the bioavailability of trace metals, it is necessary to know the speciation in equilibrium and the dynamic behavior of the system. In thi
Quím. Nova. Publicado em: 2018-07
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22. Evaluation of the oil flow using the MQL technique applied in the cylindrical plunge grinding of AISI 4340 steel with cbn grinding wheel
Abstract The grinding process is defined as an abrasive cutting action of a tool known as grinding wheel, which is submitted to high rotations, promoting excellent finishing and accuracy in dimensions, respecting the parameters established in each project. During the machining, the cutting edges of the abrasive grains undergo wearing and this increases the c
REM, Int. Eng. J.. Publicado em: 2018-07
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23. Dynamics of the seasonal airborne propagation of Staphylococcus aureus in academic dental clinics
Abstract Objective Staphylococcus aureus strains can be disseminated during dental treatments and occasionally lead to the contamination and infection of patients and dentists, which is an important public health problem. The dynamics of the airborne propagation and the genetic diversity of S. aureus isolated in an academic dental clinic environment were in
J. Appl. Oral Sci.. Publicado em: 05/04/2018
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24. Simultaneous biodegradation of phenol and cyanide present in coke-oven effluent using immobilized Pseudomonas putida and Pseudomonas stutzeri
ABSTRACT Discharge of coke-oven wastewater to the environment may cause severe contamination to it and also threaten the flora and fauna, including human beings. Hence before dumping it is necessary to treat this dangerous effluent in order to minimize the damage to the environment. Conventional technologies have inherent drawbacks however, biological treatm
Braz. J. Microbiol.. Publicado em: 2018-03