Results 11 to 20 of about 6,561,964 (199)

Remoção de cromo (vi) e carbono orgânico total em biorreatores híbridos sequenciais [PDF]

open access: yes, 2022
This work was intended to evaluate the performance of sequential hybrid bioreactor systems, without aeration and with intermittent aeration, when removing chrome (VI), Total chrome, Total organic carbon (COT) from an effluent containing Cr (VI). Chemical Oxygen Demand (DQO) and the biomass concentration also were monitored.
Brandão, Camilo Aurélio
openaire   +3 more sources

Evaluating Serpentinization as a Source of Phosphite to Microbial Communities in Hydrothermal Vents. [PDF]

open access: yesGeobiology
ABSTRACT Previous studies have documented the presence of phosphite, a reduced and highly soluble form of phosphorus, in serpentinites, which has led to the hypothesis that serpentinizing hydrothermal vents could have been an important source of bioavailable phosphorus for early microbial communities in the Archean.
Boden JS   +4 more
europepmc   +2 more sources

Determinación de cromo hexavalente en ambientes laborales, cromo total en orina y estimación del nivel de riesgo para la salud de acuerdo con las condiciones de exposición de trabajadores de empresas cromadoras de Bogotá. 2018 [PDF]

open access: yes, 2019
Las características toxicológicas del cromo se deben a su estado de oxidación, y en su gran medida a los procesos industriales en donde es utilizado. Dentro de estas industrias el recubrimiento electrolítico con cromo es la que presenta mayor exposición dadas las características de tipo técnico y social con las que se desarrolla la actividad.
Páez Bahamón, Derly Johanna
openaire   +2 more sources

Avaliação do reuso de cromo de resíduos químicos provenientes de análises de carbono orgânico total (COT) pelo método de Walkley-Black em solos de Rondônia, Brasil

open access: yesRevista Brasileira Multidisciplinar
A metodologia de determinação de carbono orgânico total (COT) utilizada pelo laboratório de solos do IFRO, Campus Colorado do Oeste, tem como resíduo químico uma solução aquosa ácida contendo cromo (tri e hexavalente). Assim, o presente trabalho teve como objetivos desenvolver e validar um método de recuperação de cromo a partir desses resíduos; e ...
Dham Khlisman Velozo da Silva   +3 more
openaire   +2 more sources

Proximity to metal mining is related to aspects of feather coloration but not fluctuating asymmetry in the Russet‐crowned Motmot (Momotus mexicanus) in south‐central Mexico

open access: yesIbis, Volume 165, Issue 2, Page 587-601, April 2023., 2023
Mining is present in all major biomes worldwide and overlaps strongly with areas of importance for bird conservation. Mining causes multiple types of environmental disturbance, including habitat alteration, increased human presence and persistent heavy metal pollution. Feather coloration and fluctuating asymmetry (random deviation from perfect symmetry
Lynna Marie Kiere   +5 more
wiley   +1 more source

Dupilumab‐associated ocular surface disease: An interdisciplinary decision framework for prescribers in the Australian setting

open access: yesAustralasian Journal of Dermatology, Volume 63, Issue 4, Page 421-436, November 2022., 2022
Abstract Background/Objectives Dupilumab‐associated ocular surface disease (DAOSD) is of particular relevance in patients with atopic dermatitis (AD). Guidance on DAOSD assessment and management in the Australian setting is needed to reduce its impact and minimise disruption to treatment.
Peter Foley   +7 more
wiley   +1 more source

An Edition of Ambrosio Nieto’s Paradise Lost: A Drama in Four Acts (c. 1920–50)

open access: yes, 2023
Milton Quarterly, Volume 57, Issue 3, Page 59-88, October 2023.
Angelica Duran
wiley   +1 more source

Avaliação dos níveis de cromo total em águas para consumo humano

open access: yesRevista do Instituto Adolfo Lutz, 2018
Níveis elevados de cromo associados às águas naturais não são comuns, mas concentrações elevadas desse elemento, de ocorrência natural, têm sido relatadas nas águas subterrâneas de vários sistemas aquíferos, incluindo o Aquífero Bauru, SP, Brasil. Este fato está associado à ocorrência de rochas máficas/ultramáficas e às condições alcalinas e oxidantes.
Lidiane Raquel Verola Mataveli   +4 more
openaire   +1 more source

Eficiencia de la biomasa de Spirulina sp. en la remoción de cromo total en aguas residuales de una industria textil [PDF]

open access: yes, 2023
La presente investigación consideró como propósito principal determinar la eficiencia de la biomasa de Spirulina sp. en la remoción de cromo total en las aguas residuales de una industria textil.
Tirado Leon, Nayellet Darlene   +1 more
core  

Metabolitos en suero sanguíneo de cerdos alimentados con dietas suplementa-das con Cromo-L-metionina

open access: yesAgronomía Mesoamericana, 2006
Metabolitos en suero sanguíneo de cerdos alimentados con dietas suplementadas con Cromo-L-metionina. Un total de 48 cerdos (Sus scrofa domesticus; 24 machos castrados y 24 hembras) cruzados (Yorkshire, Hampshire, Duroc y Landrace) de 3,5 a 4,0 meses de ...
Ramón García Castillo   +4 more
doaj   +3 more sources

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