Results 41 to 50 of about 2,561,088 (242)

Bioinspired Bromination Enables Extensible, Strain‐Stiffening Resilin Peptide Scaffolds with Tunable Degradation

open access: yesAdvanced Functional Materials, EarlyView.
Bioinspired bromination of a resilin‐derived peptide enables the fabrication of electrospun nanofibrous scaffolds that uniquely combine strain‐stiffening elasticity, proteolytic stability, and antioxidant functionality. These brominated peptide–gelatin hybrids mimic the extensibility of natural elastomers, demonstrating tunable mechanical resilience ...
Elisa Marelli   +6 more
wiley   +1 more source

Distribution and behavior of Argentine hake larvae: Evidence of a biophysical mechanism for self-recruitment in northern Patagonian shelf waters

open access: yesCiencias Marinas, 2011
It has been proposed that vertical movements of planktonic organisms coupled to a horizontally or vertically stratified circulation pattern could describe a retention mechanism, with ecological advantages such as favoring recruitment success.
G Álvarez-Colombo   +13 more
doaj   +1 more source

Preyssler Heteropolyacids in the Self-Etherification of 5-Hydroxymethylfurfural to 5,5′-[Oxybis(methylene)]bis-2-furfural Under Mild Reaction Conditions [PDF]

open access: yes, 2017
The synthesis of 5,5′-[oxybis(methylene)]bis-2-furfural (OBMF) from 5-hydroxymethylfurfural (5-HMF) was studied using bulk and alumina-supported Preyssler heteropolyacids (HPAs). The formation of OBMF was related to the amount of Brønsted acid sites, and
Afonso, Carlos A. M.   +6 more
core   +1 more source

Enhancing Magnetic Hyperthermia at the Cell Membrane by Anchoring 92R‐Functionalized Magnetic Nanoparticles to Low‐Endocytic CCR9 Surface Receptors

open access: yesAdvanced Healthcare Materials, EarlyView.
We present a strategy to enhance magnetic hyperthermia therapy by modulating nanoparticle–cell interactions. Antibody‐functionalized magnetic nanoparticles targeting the low‐internalizing CCR9 receptor enable spatially controlled membrane anchoring, reducing aggregation and maximizing heat generation under alternating magnetic fields.
David Egea‐Benavente   +5 more
wiley   +1 more source

Investigación, políticas y desarrollo en el Perú [PDF]

open access: yes
En este artículo se explora las posibles relaciones causales entre el gasto público orientado a zonas rurales/agricultura y variables de productividad agraria e ingresos rurales, tanto en paísis de América Latina como en el PerúPublic expenditure ...
Eduardo Zegarra, GRADE, Verónica Minaya
core   +15 more sources

Evaluación de Tecnologías de Red Inalámbrica para Aplicaciones Domóticas e Inmóticas (Edificios Inteligentes)

open access: yesI+D Revista de Investigaciones, 2013
La implementación de sistemas domóticos/inmóticos es costosa en general, debido a la necesidad de acondicionamiento de los nuevos esquemas de comunicación, cableado y tuberías en las instalaciones objetivo.
Luis Alejandro Osorio Amaya   +2 more
doaj   +1 more source

Stability and activity of Zn/MCM-41 materials in toluene alkylation: Microwave irradiation vs continuous flow [PDF]

open access: yes, 2019
Zn/MCM-41 mesoporous materials have been prepared via classic wet impregnation, employing zinc nitrate as precursor and tested for activity and stability in the Friedel-Crafts alkylation of toluene with benzyl chloride under microwave irradiation and ...
Alves, Diego   +6 more
core   +3 more sources

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

open access: yesAdvanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll   +19 more
wiley   +1 more source

Más allá de las aulas: relación entre experiencias adversas infantiles, satisfacción familiar y salud mental en estudiantes universitarios

open access: yesRevista de Psicología
Este estudio adopta un diseño descriptivo correlacional para examinar la interrelación entre los niveles de ansiedad y depresión, las experiencias adversas en la infancia y la satisfacción familiar en 304 estudiantes universitarios de diferentes ...
Ismael Mieles   +4 more
doaj   +1 more source

Rol de género y percepción de bienestar y felicidad en universitarios del noroeste de México

open access: yesNova Scientia, 2022
En el contexto actual, ser joven y universitario plantea nuevos retos y transformaciones que dan lugar a situaciones de estrés que se pueden reflejar en la percepción de felicidad y bienestar.
Elba Abril Valdez   +4 more
doaj   +1 more source

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