Results 71 to 80 of about 51,466 (294)

Self‐Assembled Crystalline Peptoid Nanomaterials as Metal‐Free Enzyme Mimics for Enhanced Carbon Dioxide Hydration and Precipitation

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by metal‐free carbonic anhydrases (CAs) that achieve efficient catalysis without metal cofactors, we herein report a sequence‐defined supramolecular peptoid platform that mimics metal‐free CAs and exhibits hydrolytic activity via a supramolecular assembly‐mediated proton‐transfer mechanism.
Progyateg Chakma   +8 more
wiley   +1 more source

La materialidad en la cerámica contemporánea. Las obras de Casanovas, Pérez y Serra

open access: yesBoletín de Arte, 2014
A fin de mostrar el concepto de materialidad en la cerámica contemporánea, el presente trabajo analiza un conjunto de obras de diversos artistas españoles donde la materialidad se manifiesta mediante la apropiación de los conocimientos tecnológicos en la
Florencia Serra   +3 more
doaj  

Uso del selenio en organismo acuáticos. Una revisión

open access: yesIntropica, 2022
Los nutrientes presentes en el alimento, son de vital importancia para los procesos biológicos en los animales, de esta manera la selección de los ingredientes que conforman la dieta, son esenciales para determinar la inclusión apropiada.
Jenny Hoya-Flórez   +2 more
doaj  

ESTADO MINERAL Y SUPLEMENTO CON ALAMBRE DE ÓXIDO DE COBRE EN CABRAS DE SAN JOSÉ TEACALCO, TLAXCALA

open access: yesEcosistemas y Recursos Agropecuarios, 2015
Se evaluaron los efectos del complemento vía oral con 5 g de alambre de óxido de cobre (AOCu), y del día de muestreo, en la concentración de minerales en suero sanguíneo y leche de cabras. Se usó un diseño completamente al azar.
Juan Carlos Muñoz-González,   +3 more
doaj   +1 more source

Unique Role of Microstructure of a Bioimplant Zinc Alloy and Protein Content of Simulated Body Fluid in Corrosion and Fracture

open access: yesAdvanced Functional Materials, EarlyView.
BSA addition to physiological solutions enhances resistance of a Zn alloy to stress corrosion cracking (SCC) but reduces its corrosion resistance. Extended surface characterization explains the contrasting influences on corrosion and SCC. Unexpectedly, the alloy suffers transgranular SCC (TGSCC), despite extensive grain boundary precipitation. Thorough
RK Singh Raman   +9 more
wiley   +1 more source

Nuevas contribuciones tecnológicas al estudio de la salsa garum a partir del análisis químico de restos ictiológicos de la ‘Tienda del Garum’ de Pompeya (I.12.8)

open access: yesZephyrus, 2018
La salsa garum fue un ingrediente popular en la gastronomía romana, sin embargo, su proceso de producción sigue siendo desconocido y se han conservado pocos restos del producto en el mundo antiguo.
Álvaro RODRÍGUEZ-ALCÁNTARA   +4 more
doaj   +1 more source

Mechanics of Telson Ridges in Mantis Shrimp for Impact Analysis and Implications for Bioinspired Elastic Shell Designs

open access: yesAdvanced Functional Materials, EarlyView.
The mantis shrimp telson reveals how ridged biological shields control deformation under impact. Inspired by this architecture, telson‐inspired ridged curved shells transform ridge geometry and macroscopic curvature into bidirectional snap‐through, tunable stiffness, and enhanced hysteretic energy dissipation for multifunctional architected materials ...
Phani Saketh Dasika   +5 more
wiley   +1 more source

NON-PHARMACOLOGICAL TREATMENT IN KIDNEY DISEASE CAUSED BY DIABETES

open access: yesRevista de la Sociedad Argentina de Diabetes, 2018
The non-pharmacological treatment of chronic kidney disease (CKD) consists in regulating sodium consumption, abandoning cigarette smoking, perform physical activity and attain weight loss in case of overweight/obesity.
Estrella Menéndez
doaj   +1 more source

Beyond Thin Film Limits—Superhard and Hydrogen‐Free Amorphous Carbon Coatings With Over 100 µm Thickness

open access: yesAdvanced Functional Materials, EarlyView.
For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa   +3 more
wiley   +1 more source

Pequeña guía de minerales inexistentes: Adamantium

open access: yes, 2019
Comienzo del libro Pequeña guía de minerales inexistentes. ISBN 978-84-669-3616-3.Depto. de Mineralogía y PetrologíaFac.
Pina Martínez, Carlos Manuel   +1 more
core   +1 more source

Home - About - Disclaimer - Privacy