Results 21 to 30 of about 63,287 (256)

Acid Site Design for Low Hydration Proton Exchange Membranes

open access: yesAdvanced Functional Materials, EarlyView.
α‐CF2 substitution adjacent to sulfonic acid increases acid strength and enables efficient proton transport under low hydration conditions. This molecular design reduces the dependence of hydrocarbon proton exchange membranes on excessive water uptake, addressing a key limitation of conventional hydrocarbon PEMs while maintaining favorable conductivity
Ajay Kumar   +10 more
wiley   +1 more source

Environmental Identification of Novel Enzymes for Polyurethane and Polyamide Degradation

open access: yesAngewandte Chemie, EarlyView.
Heteroatom‐containing plastics such as polyurethanes and nylons are produced at scale yet remain largely unrecycled. Biocatalysts offer a promising route to depolymerization under mild conditions. Here, we present a screening platform for the discovery of novel polyurethane‐ and nylon‐degrading enzymes from environmental samples and demonstrate ...
Malthe Kjær Bendtsen   +17 more
wiley   +2 more sources

El «motu proprio» «Vos estis lux mundi»: contenidos y relación con otras normas del derecho canónico vigente

open access: yesEstudios Eclesiásticos, 2019
El m. p. Vos estis lux mundi (mayo de 2019) prescribe obligaciones canónicas relacionadas con informar a las autoridades de la Iglesia sobre abusos sexuales de menores y personas vulnerables, y conductas relacionadas con la pornografía infantil, que sean
José Luis Sánchez-Girón Renedo
doaj   +1 more source

Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet

open access: yesAdvanced Materials, EarlyView.
Chiral graphene nanoribbons on a ferromagnetic gadolinium‐gold surface alloy display tunable spin and charge states at their termini. Atomic work function variations and exchange fields enabe transitions between singlet, doublet, and triplet configurations.
Leonard Edens   +8 more
wiley   +1 more source

Microenvironmental Tuning in Isostructural Conjugated Metal–Organic Frameworks for Superior Photocatalytic H2O2 Generation

open access: yesAngewandte Chemie, EarlyView.
Two isostructural conjugated‐MOFs (Fe‐Tp and Mn‐Tp) photocatalysts were engineered with nonequivalent microenvironmental redox tuning for hydrogen peroxide production. The manganese analog engages both the oxygen reduction reaction and the water oxidation reaction while suppressing decomposition, delivering 10 487 µmol g−1 h−1 with an apparent quantum ...
Kayaramkodath Chandran Ranjeesh   +10 more
wiley   +2 more sources

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

open access: yesAdvanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil   +14 more
wiley   +1 more source

El sistema penitenciario ecuatoriano. Sin luz al fnal del túnel

open access: yesForo, Revista de Derecho
¿Por qué no se soluciona la crisis carcelaria en Ecuador? Esta pregunta lleva a explorar la problemática penitenciaria desde sus orígenes hasta llegar al contexto ecuatoriano actual.
Janeth Patricia González Malla
doaj   +1 more source

Programas de Retorno Voluntario. El caso chileno

open access: yesEstudios de Derecho, 2019
En el artículo se busca determinar la naturaleza jurídica del Plan Humanitario de Regreso Ordenado de Extranjeros (PHRO). Para ello, se reconstruye la práctica jurídica de expulsión de extranjeros en Chile, la que se compone de dos regímenes: uno penal y
Marcos Andrade Moreno
doaj   +1 more source

Lactation is Associated with Accelerated Postpartum Pelvic Floor Muscle Recovery in a Pregnant Simulated Birth Injury Model

open access: yesAdvanced Science, EarlyView.
ABSTRACT Healthy pelvic floor muscles (PFMs) are essential for proper pelvic floor function. The biggest risk factor for PFM dysfunction is injury sustained during vaginal childbirth, yet the factors that facilitate or impair PFM recovery from birth injury remain unknown.
Bianca L. Peña   +7 more
wiley   +1 more source

Those magnificent pathologists and their computational machines

open access: yesSurgical and Experimental Pathology
Computers are discrete state machines operated by a series of instructions contained in an algorithm. Humanity has long been concerned that such machines might come to emulate human thinking.
Gil Patrus Mundim Pena
doaj   +1 more source

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