Results 131 to 140 of about 1,102,528 (387)

Photo‐controlled Release of Urea Enables the Detection of Urea‐Urease Intermediates by cryo‐FTIR

open access: yesAngewandte Chemie International Edition, Accepted Article.
Caged compounds are a valuable tool to photocontrol the release of enzymatic substrates in a reaction. For example, caged urea molecules were proposed to control urea delivery to urease reactions and aid the determination of the catalytic mechanism of this enzyme.
Caterina Netto   +7 more
wiley   +1 more source

Evaluation of antioxidant activity of caffeic acid phenethyl ester loaded block copolymer micelles

open access: yesBiotechnology & Biotechnological Equipment, 2019
Caffeic acid phenethyl ester (CAPE), a hydrophobic constituent of poplar propolis of valuable biological activity, was immobilized in poly(ethylene oxide)-b-poly(ε-caprolactone)-b-poly(ethylene oxide) (PEO-b-PCL-b-PEO) copolymer micelles to improve its ...
Krassimira Yoncheva   +10 more
doaj   +1 more source

Classificação climatológica da energia potencial disponível para a convecção na cidade de Belém-PA

open access: yesRevista Brasileira de Meteorologia, 2014
A classificação climatológica da Energia Potencial Disponível para a Convecção (CAPE) foi estudada para verificar a possibilidade de ocorrer convecção e tipo de organização em Belém-PA, Brasil, associando-a com eventos extremos de precipitação (EEPRP ...
Josiane Sarmento dos Santos   +2 more
doaj   +1 more source

Biodegradable Sodium Alginate Films Incorporated With Microcapsules of Amazonian Buriti Fruit Oil (Mauritia flexuosa L.)

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Pollution caused by plastic polymers is a growing concern as it compromises biodiversity and human health. As a sustainable solution, developing biodegradable films, such as sodium alginate, is promising due to its low vapor permeability, flexibility, gloss, and cost‐effectiveness.
Cecília Roratto Köhn   +3 more
wiley   +1 more source

Lagrangian circulation study near Cape Henry, Virginia [PDF]

open access: yes
A study of the circulation near Cape Henry, Virginia, was made using surface and seabed drifters and radar tracked surface buoys coupled to subsurface drag plates.
Johnson, R. E.
core   +1 more source

Results of Dover Sole tagging in waters off Northern California, 1969-1971 [PDF]

open access: yes, 1987
Three seasonal trawl tagging cruises were undertaken by the California Department of Fish and Game between 1969 and 1971 to determine the distribution, abundance and stock identity of Dover sole (Microstomus pacificus)in the area between Cape ...
Kalvass, Peter, Quirollo, Lawrence F.
core  

Effect of Carbon Nanofillers on the Properties of Rubber Composites With High Levels of Carbon Black and Silica

open access: yesJournal of Applied Polymer Science, EarlyView.
ABSTRACT High‐performance rubber‐based composites often contain significant amounts of fillers such as carbon black and silica. Improving the behavior of such composites with small amounts of nanomaterials remains a challenge, and limited progress has been reported in recent years.
Luciana V. Cambraia   +7 more
wiley   +1 more source

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