Toluene And Lead
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. IAO Systematic Review Award 2020
Abstract Background: Cosmetics are part of the daily life of the population, and their use can lead to allergic contact dermatitis. Objectives: To assess the profile of patients diagnosed with allergic contact dermatitis to cosmetics treated at a referral center for 13 years, as well as the characteristics of the clinical picture and allergens involved. M
Int. Arch. Otorhinolaryngol.. Publicado em: 2020-12
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2. Allergic contact dermatitis to cosmetics: retrospective analysis of a population subjected to patch tests between 2004 and 2017,
Abstract Background: Cosmetics are part of the daily life of the population, and their use can lead to allergic contact dermatitis. Objectives: To assess the profile of patients diagnosed with allergic contact dermatitis to cosmetics treated at a referral center for 13 years, as well as the characteristics of the clinical picture and allergens involved. M
An. Bras. Dermatol.. Publicado em: 2020-12
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3. Avaliação do potencial fitorremediador da mamona (Ricinus communis L.) e girassol (Helianthus annuus L.) quanto à remoção de chumbo e tolueno em efluentes sintéticos. / Avaliação do potencial fitorremediador da mamona (Ricinus communis L.) e girassol (Helianthus annuus L.) quanto à remoção de chumbo e tolueno em efluentes sintéticos. / Assessment of potential for phytoremediation of castor bean (Ricinus communis L.) and sunflower (Helianthus annuus L.) as the removal of lead and toluene in synthetic wastewater / Assessment of potential for phytoremediation of castor bean (Ricinus communis L.) and sunflower (Helianthus annuus L.) as the removal of lead and toluene in synthetic wastewater
O desenvolvimento de pesquisas que visam atenuar ou até mesmo eliminar os impactos ambientais proporcionados pelas ações antropogênicas, sobretudo pelo reflexo direto dos resíduos industriais nos compartimentos bióticos como solo, água e ar, ganharam maior espaço nos ambientes acadêmicos e na iniciativa privada. Uma técnica de remediação natural
Publicado em: 2010
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4. Avaliação do estresse oxidativo, genotoxicidade e mutagenicidade em trabalhadores expostos a tintas
Organic solvents and metals, widely used in paints, can lead to DNA damages and reactives species (RS) generation. The aim of this study was to evaluate possibles oxidative, genotoxic and mutagenic damages in 33 male workers exposed for at least six months to paint. To constitute the control group 29 healthy individuals were choosen, without paint exposure,
Publicado em: 2009
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5. Sintese e reações de alguns compostos ciclicos de tres membros com complexos de metais de transição
With the aim of studying the reactivity of some cyclopropane derivatives with respect to certain transition metal complexes of the d group, the a-chlorine-a-(cyclopropiliden)-methyl acetates 1a and 1b, the alquinilcyclopropanes 2a-i and the 3-cyclopropil-2H-azirine 3a were synthesized. Reactions of these cyclopropanes with organometalic complexes of the nick
Publicado em: 2004
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6. Caracterização de geis tixotropicos utilizados em telecomunicações
This work is enclosed in a project of development of national technology in Telecommunications with participation of UNICAMP and TELEBRÁS Research and Development Center. Today, a number of the materials used in optical cables are imported, without a specific knowledge of their behavior in the Brazilian climate conditions. The gels used for cable filling ar
Publicado em: 1992
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7. Analysis of Host Range Restriction in Escherichia coli Treated with Toluene
Escherichia coli cells treated with toluene replicate DNA when they are provided with deoxyribonucleoside 5′-triphosphates, ATP, Mg++, and K+. However, when deoxycytidine 5′-triphosphate is replaced by hydroxymethyl deoxycytidine 5′-triphosphate, incorporation of nucleotides into acid-precipitable material by toluenetreated strains restrictive to nongl
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8. Mutations in Genes Involved in the Flagellar Export Apparatus of the Solvent-Tolerant Pseudomonas putida DOT-T1E Strain Impair Motility and Lead to Hypersensitivity to Toluene Shocks
Pseudomonas putida DOT-T1E is a solvent-tolerant strain able to grow in the presence of 1% (vol/vol) toluene in the culture medium. Random mutagenesis with mini-Tn5-′phoA-Km allowed us to isolate a mutant strain (DOT-T1E-42) that formed blue colonies on Luria-Bertani medium supplemented with 5-bromo-4-chloro-3-indolylphosphate and that, in contrast to the
American Society for Microbiology.
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9. Stable Hydrogen and Carbon Isotope Fractionation during Microbial Toluene Degradation: Mechanistic and Environmental Aspects†
Primary features of hydrogen and carbon isotope fractionation during toluene degradation were studied to evaluate if analysis of isotope signatures can be used as a tool to monitor biodegradation in contaminated aquifers. D/H hydrogen isotope fractionation during microbial degradation of toluene was measured by gas chromatography. Per-deuterated toluene-d8 a
American Society for Microbiology.
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10. Biochemical Localization of Alkaline Phosphatase in the Cell Wall of a Marine Pseudomonad
The various layers of the cell envelope of marine pseudomonad B-16 (ATCC 19855) have been separated from the cells and assayed directly for alkaline phosphatase activity under conditions established previously to be optimum for maintenance of the activity of the enzyme. Under conditions known to lead to the release of the contents of the periplasmic space fr
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11. Detection of high levels of polyadenylate-containing RNA in bacteria by the use of a single-step RNA isolation procedure.
A new one-step procedure for the isolation of bacterial RNA, involving lysis by proteinase K in the presence of sodium dodecyl sulfate, is described. Pulse-labeled RNA isolated by this procedure for Bacillus brevis, Bacillus subtilis, and Escherichia coli B has been found to contain a substantial fraction (15-40%) of polyadenylated RNA as determined by adsor
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12. Serum laminin, hydrocarbon exposure, and glomerular damage.
It has been postulated that occupational exposure to hydrocarbons may damage the kidney and lead to glomerulonephritis and chronic renal failure. As laminin is a ubiquitous basement membrane component that seems to play a central part in the structure and function of basement membranes and as the normal renal filtration process is highly dependent on an inta