Results 41 to 50 of about 973,480 (298)

4D‐Printed Magneto‐Plasmonic Microrobots for Programmable Spatiotemporal De‐Icing

open access: yesAdvanced Functional Materials, EarlyView.
A 4D‐printing strategy is introduced to achieve programmable de‐icing devices. By aligning gold–magnetite nanofillers within a photosensitive resin, the printed structures exhibit dual magnetic and plasmonic functionalities, enabling precise spatio‐temporal ice removal through thermoplasmonic effects.
Amélie Pérot   +7 more
wiley   +1 more source

La organización de archivos musicales: marco conceptual

open access: yesInformación, Cultura y Sociedad, 2005
La música es el arte de producir el sonido, y como toda expresión artística desarrollada por el hombre deja un vestigio material que bien puede ser un documento en soporte papel o electrónico, o también en una grabación, en todo caso el producto será
Esteban Cabezas Bolaños
doaj   +1 more source

Sensitized Triplet Exciton Generation in Nanostructured Polymer Scintillators: Toward Improved γ/Neutron Discrimination

open access: yesAdvanced Functional Materials, EarlyView.
Rapid γ/neutron discrimination through PSD is achieved in liquid droplet containing nanostructured polymeric scintillator where a TTA‐active dye is dissolved. The inclusion of a properly selected and dosed sensitizer metalated porphyrin enhances discrimination sensitivity and speed by doubling the density of annihilating triplets and increasing the ...
Luca Pollice   +9 more
wiley   +1 more source

An Edible H2O2 Biosensor for Gastrointestinal Metabolites and Peroxidase Enzyme Quantification

open access: yesAdvanced Healthcare Materials, EarlyView.
We present an edible biosensor for gastric fluid analysis that integrates a caffeic acid–horseradish peroxidase redox system into an edible electrolyte‐gated transistor. The device enables rapid, low‐volume detection of H2O2 and, with minimal modification, metabolites and enzyme activity in simulated gastrointestinal conditions.
Valerio Francesco Annese   +10 more
wiley   +1 more source

Situación actual de la enseñanza del psicodiagnóstico de Rorschach y los métodos proyectivos en el Perú

open access: yesRevista de Psicología, 1999
Se presenta una breve historia sobre el origen y desarrollo de las pruebas psicológicas proyectivas en el Perú. Se administró una encuesta a profesores universitarios y a miembros de la Sociedad Peruana de Rorschach y Métodos Proyectivos, con el ...
Matilde Ráez de Ramírez
doaj  

EL CONCEPTO DE CALIDAD: UN MARCO CONCEPTUAL

open access: yesIngeniería, 2011
En este ensayo se estudia el concepto de calidad, desarrollándose los conceptos de valor objetivo, sistema de valores, cuantificación de la necesidad y de la calidad en su relación con la evaluación en los sistemas universitarios y sus carreras ...
Rodolfo Herrera Jiménez
doaj   +1 more source

A Modular Bioinstructive Platform Reveals Mechanistic Insights into Additive‐Free, Topography‐Driven Osteogenesis

open access: yesAdvanced Healthcare Materials, EarlyView.
Engineered microparticle topographies direct human mesenchymal stem cell osteogenesis without biochemical additives. This osteogenic commitment is driven by canonical Hedgehog signaling and followed by temporal IGF‐II engagement. Two‐photon polymerization demonstrates spatial control, enabling the engineering of topographical gradients that pattern ...
Fatmah I. Ghuloum   +5 more
wiley   +1 more source

Plasmonic Enhancement of Fluorescence and Protein Dynamics in Living Mammalian Cells

open access: yesAdvanced Materials, EarlyView.
This study demonstrates plasmonic enhancement of the function of fluorescent voltage sensing proteins (genetically encoded voltage indicators, (GEVIs), QuasAr6) in live mammalian cells. Coupling to plasmonic nanoparticles does not just increase fluorescence, but influences the protein photocycle, creating a hybrid sensor with its response speed to ...
Marco Locarno   +16 more
wiley   +1 more source

Stepwise On‐Surface Synthesis and Transformations of Two‐Dimensional Covalent Organic Frameworks by Controlled Thermal Stimuli

open access: yesAdvanced Materials, EarlyView.
The seminal transformation of a 2D‐COF (SURFCOF‐IMDEA1) into a 2D porous COF (SURFCOF‐IMDEA2) on Au(111) by a sequential C‐C coupling and ladderization triggered by thermal annealing steps at increasing temperatures is reported. Abstract The development of covalent organic frameworks (COFs) is currently a primary objective in materials science, taking ...
Ana Barragán   +11 more
wiley   +1 more source

Determinación de los coeficientes de oxigenación y desoxigenación para la curva de comportamiento de oxígeno disuelto en el Río Fucha [PDF]

open access: yes, 2016
Trabajo de InvestigaciónEn el presente trabajo de investigación orientado desde la Universidad Católica de Colombia, facultad de Ingeniería Civil, se determinan los coeficientes de desoxigenación (K1) y oxigenación (K2) del río Fucha a partir de la ...
Escobar-Pintor, Javier Andrés   +1 more
core  

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