Results 21 to 30 of about 6,595 (179)

Accumulation of Methylmercury in the High-Altitude Lake Uru Uru (3686 m a.s.l, Bolivia) Controlled by Sediment Efflux and Photodegradation

open access: yesApplied Sciences, 2020
In shallow aquatic environments, sediment is a significant source of monomethylmercury (MMHg) for surface water (SW). High-altitude aquatic ecosystems are characterized by extreme hydro-climatic constraints (e.g., low oxygen and high UV radiation).
Stéphane Guédron   +11 more
doaj   +1 more source

Application of a simplified methodology to estimate reservoir capacity curves

open access: yesRevista de Teledetección, 2021
In the management of the regulation volumes of the water resource projected for a variety of benefits (hydroelectric uses, irrigation, drinking water, among others), it is essential to calculate the morphometric variables of the reservoirs to anticipate ...
Santiago A. Ochoa-García
doaj   +1 more source

Topografía de vanguardia en los levantamientos de yacimientos megalíticos. Estrategias para el conocimiento. Métodos.

open access: yesVirtual Archaeology Review, 2013
Tanto las tecnologías de captura de datos de campo en topografía como las posibilidades de representación gráfica y cartográfica, permiten actualmente obtener productos que superan con creces a los tradicionales planos topográficos y a las detalladas ...
D. Linares Catela   +4 more
doaj   +1 more source

Characterization of an alkali- and halide-resistant laccase expressed in E. coli: CotA from Bacillus clausii. [PDF]

open access: yesPLoS ONE, 2014
The limitations of fungal laccases at higher pH and salt concentrations have intensified the search for new extremophilic bacterial laccases. We report the cloning, expression, and characterization of the bacterial cotA from Bacillus clausii, a supposed ...
Søren Brander   +2 more
doaj   +1 more source

Cotas nas universidades públicas [PDF]

open access: yesAfro-Ásia, 2014
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Guimarães, Antonio Sérgio A.   +1 more
openaire   +6 more sources

CotA, a multicopper oxidase from Bacillus pumilus WH4, exhibits manganese-oxidase activity. [PDF]

open access: yesPLoS ONE, 2013
Multicopper oxidases (MCOs) are a family of enzymes that use copper ions as cofactors to oxidize various substrates. Previous research has demonstrated that several MCOs such as MnxG, MofA and MoxA can act as putative Mn(II) oxidases.
Jianmei Su   +6 more
doaj   +1 more source

Cotas de gênero

open access: yesAcademia de Direito, 2020
O sistema eleitoral brasileiro vem sofrendo inúmeras reformas para proporcionar um cenário efetivamente acessível às mulheres. Nesse sentido, a alteração mais relevante nos últimos anos foi a implementação das cotas de gênero na política.  Com o advento da Lei nº 12.034 de 2009, tornou-se obrigatório o respeito às cotas eleitorais, porém, inicialmente,
Douglas Bischoff da Silveira   +1 more
openaire   +2 more sources

Algal Bloom Exacerbates Hydrogen Sulfide and Methylmercury Contamination in the Emblematic High-Altitude Lake Titicaca

open access: yesGeosciences, 2018
Algal blooms occurrence is increasing around the globe. However, algal blooms are uncommon in dominantly oligotrophic high-altitude lakes. Lake Titicaca, the largest freshwater lake in South America, located at 3809 m above the sea level, experienced its
Darío Achá   +6 more
doaj   +1 more source

Hydrogen Peroxide-Resistant CotA and YjqC of Bacillus altitudinis Spores Are a Promising Biocatalyst for Catalyzing Reduction of Sinapic Acid and Sinapine in Rapeseed Meal. [PDF]

open access: yesPLoS ONE, 2016
For the more efficient detoxification of phenolic compounds, a promising avenue would be to develop a multi-enzyme biocatalyst comprising peroxidase, laccase and other oxidases.
Yanzhou Zhang   +5 more
doaj   +1 more source

COTAS RACIAIS

open access: yesRevista Multidisciplinar do Nordeste Mineiro
O presente estudo tem como objetivo geral analisar a juridicidade do modelo brasileiro de cotas raciais para o ingresso no ensino superior, com ênfase na inclusão de pessoas pardas, que têm sido invisibilizadas pelas comissões de heteroidentificação nas universidades federais.
Igor Caiafa Ferreira Silvério   +2 more
openaire   +2 more sources

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