Results 181 to 190 of about 448,548 (359)

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

open access: yesAdvanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan   +16 more
wiley   +1 more source

Considerações sobre o Provão

open access: yesCadernos de Saúde Pública
A implementação, no Brasil, do Exame Nacional de Cursos, conhecido como Provão, vem suscitando debates de distinta natureza. Este artigo tem como objetivo contribuir para esse debate, apontando, com base nas provas aplicadas, sua ambivalência entre se ...
Euclides A. Castilho, Amélia Cohn
doaj  

Occupational health surveillance

open access: yesIndian Journal of Occupational and Environmental Medicine, 2018
openaire   +2 more sources

Engineering Porous Hollow Metal‐Poly(Heptazine Imide) Spheres: An Optimized Synthetic Strategy for Controlling Surface, Morphology, and Properties

open access: yesAdvanced Functional Materials, EarlyView.
Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni   +10 more
wiley   +1 more source

Occupation and Female Breast Cancer Mortality in South Africa: A Case-Control Study. [PDF]

open access: yesInt J Environ Res Public Health
Motlhale M   +4 more
europepmc   +1 more source

Light‐Controlled Reversible Coassembly of Hybrid Functional Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Light‐responsive hybrid nanostructures are formed by coassembling azobenzene‐ and PAH‐functionalized nanoparticles through reversible an tunable π interactions. The system enables tunable coupling between distinct components such as gold and magnetite or carbon nanotubes, producing switchable optical and magnetic properties under light and magnetic ...
Michal Sawczyk   +5 more
wiley   +1 more source

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