Contaminated Materials
Mostrando 1-12 de 75 artigos, teses e dissertações.
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1. In vitro degradative effect of purified zearalenone with or without adsorbents after bionic digestion
Abstract The occurrence of zearalenone is considered a major risk factor affecting human and animal health worldwide. Zearalenone-contaminated feed can cause serious disorders and diseases in farm animals. A number of approaches have been developed to counteract zearalenone, but only few can be used. A potential approach to protecting animals against the har
Food Sci. Technol. Publicado em: 2021-09
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2. Chemical characterization of wheat kernels naturally contaminated by deoxynivalenol-DON when cultivated under nitrogen management strategies
RESUMO Composição química e contaminação de grãos de trigo (Triticum aestivum L.) afeta diretamente a qualidade da farinha obtida, determinando sua aceitabilidade e uso pela indústria. Ensaios foram conduzidos a campo para avaliar o impacto de práticas agrícolas na qualidade de grãos de trigo (composição química e contaminação). O cultivo foi
Rev. Ciênc. Agron.. Publicado em: 04/11/2019
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3. Dimensionamento de pessoal no centro de material e esterilização de um hospital universitário
RESUMO Objetivo Aplicar os parâmetros de tempo padrão das atividades de enfermagem propostos pela Resolução COFEN n.º 543/2017 para dimensionar o quantitativo de técnicos de enfermagem no centro de material e esterilização de um hospital universitário e comparar o quadro projetado com o existente no setor. Método Pesquisa exploratória e descri
Rev. esc. enferm. USP. Publicado em: 14/10/2019
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4. Crop residues activity against the free-living stages of small ruminant nematodes
Resumo O efeito nematicida de diferentes materiais orgânicos foi avaliado, com o objetivo de desenvolver um tratamento alternativo não químico do solo para o controle dos estágios de vida livre de nematoides gastrintestinais de pequenos ruminantes. Os materiais orgânicos selecionados foram resíduos da indústria de suco de acerola, caju, uva, goiaba, m
Rev. Bras. Parasitol. Vet.. Publicado em: 29/08/2019
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5. Presence of iron in polymers extruded with corrosive contaminants or abrasive fillers
Abstract Off-site measurements of the dimensions of extruder screws are used to monitor their wear. This wear causes the presence of metals in the processed polymer. We detected the presence of iron in polymers processed with corrosive contaminants or abrasive fillers. To this end we processed poly(ethylene terephthalate), PET, pure or contaminated with poly
Polímeros. Publicado em: 10/06/2019
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6. Antibiofilm Activity of an Experimental Ricinus Communis Dentifrice on Soft Denture Liners
Resumo A desvantagem dos materiais resilientes é a dificuldade de controle do biofilme. Este estudo comparou um dentífrico experimental contendo Ricinus communis, com dentifrícios comerciais quanto atividade contra biofilme formado em reembasador de próteses totais. Seiscentos espécimes foram distribuídos em 5 grupos (n=18/microrganismo): água; dentif
Braz. Dent. J.. Publicado em: 03/06/2019
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7. THE FUNGAL ABILITY FOR BIOBLEACHING/BIOPULPING/BIOREMEDIATION OF LIGNIN-LIKE COMPOUNDS OF AGRO-INDUSTRIAL RAW MATERIAL
Lignin is present in plant cell secondary wall, associated to carbohydrates preventing their efficient hydrolysis, and cellulose pulp manufacture basically consists in breaking down the middle lamella of plant cells, individualizing fibers such as cellulose from the other biopolymers. Different levels of lignocellulose are found in plant residues and they ca
Quím. Nova. Publicado em: 2017-09
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8. Bacterial endotoxin adhesion to different types of orthodontic adhesives
Abstract Bacterial endotoxin (LPS) adhesion to orthodontic brackets is a known contributing factor to inflammation of the adjacent gingival tissues. Objective The aim of this study was to assess whether LPS adheres to orthodontic adhesive systems, comparing two commercial brands. Material and Methods Forty specimens were fabricated from Transbond XT and
J. Appl. Oral Sci.. Publicado em: 2017-08
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9. Presence of central nervous system tissues as bovine spongiform encephalopathy specified risk material in Turkish raw meat ball (cig kofte)
Abstract Bovine Spongiform Encephalopathy (BSE) is a virulent disease which may infect by affecting the central nervous system (CNS) tissues in cattle and causes degeneration in nerves. Central nervous system tissues such as brain and spinal cord which are classified as specified risk materials (SRMs) are regarded to be main source of infection. The contamin
Food Sci. Technol. Publicado em: 06/05/2016
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10. Stability of antimicrobial activity of peracetic acid solutions used in the final disinfection process
The instruments and materials used in health establishments are frequently exposed to microorganism contamination, and chemical products are used before sterilization to reduce occupational infection. We evaluated the antimicrobial effectiveness, physical stability, and corrosiveness of two commercial formulations of peracetic acid on experimentally contamin
Braz. oral res.. Publicado em: 11/02/2015
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11. Miniaturized most probable number for the enumeration of Salmonella sp in artificially contaminated chicken meat
Salmonella is traditionally identified by conventional microbiological tests, but the enumeration of this bacterium is not used on a routine basis. Methods such as the most probable number (MPN), which utilize an array of multiple tubes, are time-consuming and expensive, whereas miniaturized most probable number (mMPN) methods, which use microplates, can be
Rev. Bras. Cienc. Avic.. Publicado em: 2014-03
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12. Especiação redox de crômio em amostras de solos contaminados / Redox especiation of chromium in contaminated soil samples
Chromium and its compounds are employed in various industrial processes, and these activities are responsible for the disposal of significant amounts of materials containing this element in the environment. Due to the known toxic feature of Cr(VI) in biological systems, the determination of chromium species has acquired great importance in environmental chem
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/03/2012