Results 41 to 50 of about 75,661 (246)

Role of Histidine‐Containing Peptoids in Accelerating the Kinetics of Calcite Growth

open access: yesAdvanced Functional Materials, EarlyView.
Amphiphilic histidine‐containing peptoids mimic carbonic anhydrase (CA) to accelerate calcite step growth. In the presence of Zn2+, they promote the deprotonation of HCO3−, the desolvation of Ca2+, and the reorganization of interfacial hydration layers, thereby reducing the activation barrier for calcite growth.
Mingyi Zhang   +5 more
wiley   +1 more source

¿Quién es mi prójimo?

open access: yesEstudios Eclesiásticos, 1966
El estudio profundo y serio de la parábola del Buen Samaritano (Lc 10,25.37) ha presentado a lo largo de los años numerosas dificultades a la hora de ser estudiada. Esto se debe a tres problemas principales.
José R. de Diego
doaj  

Multi-objective optimization of a type of ellipse-parabola shaped superelastic flexure hinge [PDF]

open access: yesMechanical Sciences, 2016
Flexure hinges made of superelastic materials is a promising candidate to enhance the movability of compliant mechanisms. In this paper, we focus on the multi-objective optimization of a type of ellipse-parabola shaped superelastic flexure hinge.
Z. Du, M. Yang, W. Dong
doaj   +1 more source

Lugares Geométricos como piezas claves para Gestionar la Enseñanza de las Cónicas en la Geometría Analítica [PDF]

open access: yes, 2014
En esta conferenciase presentarán los resultados de una investigación (Fernández, 2011) en la cual se diseñó una secuencia didáctica para el aprendizaje de las cónicas (parábola, elipse e hipérbola) vistas como lugares geométricos y mediados con el Cabri
Fernández-Mosquera, Edinsson   +1 more
core  

Silver Ion‐Mediated [hk1]‐Oriented Sb2Se3 Crystal Growth for Efficient Photoelectrochemical Hydrogen Evolution

open access: yesAdvanced Functional Materials, EarlyView.
Ag+‐mediated hydrothermal crystal engineering promotes preferential [hk1]‐oriented growth of Sb2Se3 via an ultrathin MoOx interlayer, improving crystallinity and suppressing non‐radiative recombination. The optimized Ag+ treatment photocathode delivers 24.7 mA cm−2 at 0 VRHE and improved stability, revealing an ion‐modulated route to high‐performance ...
Ziying Zhang   +10 more
wiley   +1 more source

Using Long‐Chain Polymechanophores to Explore the Differences in Mechanoactivation During Nozzle Flow and Ultrasonication

open access: yesAdvanced Functional Materials, EarlyView.
Flow through a nozzle is a common component of most fluid‐based polymer processing techniques such as spray drying, inkjet printing, extrusion. An ultrahigh molecular weight multi‐mechanophore system is used to probe the differences in the distribution of mechanical activation observed between nozzle flow and ultrasonication; the gold standard ...
Niamh Willis‐Fox   +4 more
wiley   +1 more source

Na parábola do desvalido no caminho (Lc 10, 25-37): o autoconceito pela humanização em saúde

open access: yesPistis & Praxis: Teologia e Pastoral, 2011
Com este texto procuramos uma leitura do pensamento de W. James sobre o self (autoconceito) no âmbito da parábola do bom samaritano (Lc 10, 25-37). Aqui, encontramos uma original forma de abordar o sentido da humanização, em saúde, pelos fundamentos ...
Ramiro Délio Borges de Meneses
doaj   +1 more source

Usando espejos para construir el concepto de parábola [PDF]

open access: yes, 2012
Se busca construir el concepto de parábola por medio de una experimentación física y una modelación con Cabri, de la siguiente situación: dados diez rayos de luz paralelos, colocar diez espejos planos que reflejen los rayos sobre un objeto dado ...
Acosta, Martín Eduardo
core  

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

open access: yesAdvanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco   +7 more
wiley   +1 more source

Aspectos políticos y literarios de una obra de Alexandr Solschenizyn: Pabellón de cáncer

open access: yesPensamiento al Margen, 2016
El artículo analiza la obra literaria, Pabellón de cáncer, de Alexandr Solschenizyn, desde su concepción como parábola de la decadencia del estalinismo.
Manuel García Pérez
doaj  

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