Results 51 to 60 of about 2,244,395 (267)

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

open access: yesAdvanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan   +9 more
wiley   +1 more source

El discurso ausente: el caso del cambio climático

open access: yesPapers, 2020
Partiendo de una investigación empírica que incluye entre sus objetivos la observación de la preocupación de la sociedad española por el cambio climático, el presente trabajo indaga en el potencial heurístico que tiene el silencio recogido sobre este ...
Javier Callejo
doaj   +1 more source

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro   +4 more
wiley   +1 more source

Ladder‐Type Benzene‐Perylene Dyes with Efficient Laser Properties in the Near‐IR by Detracting/Activating Low/High Frequency Vibronic Modes

open access: yesAdvanced Functional Materials, EarlyView.
The NNR‐n series of oligomeric nanographenes delivers exceptional emission performance. This work shows that this performance is originated by their ladder‐type structure, which effectively deactivates low‐frequency vibronic modes. This deactivation neglects the main pathway for non‐emissive deactivation, even in the near‐infrared region. The potential
Marcos Díaz‐Fernández   +12 more
wiley   +1 more source

Los Medios Sociales como una herramienta estratégica para la Comunicación Corporativa [PDF]

open access: yes, 2011
Companies around the globe are embracing and adapting social media for many different intentions: customer service, marketing, internal communications, public relations or corporate social responsibility, etc.
Gómez Vázquez, Lina Margarita   +1 more
core   +1 more source

Defect‐Mediated Scintillation in Fully Inorganic Perovskites via Water‐Induced 0D/3D Phase Modulation

open access: yesAdvanced Functional Materials, EarlyView.
A reproducible synthesis to control 3D/0D phase ratios via water‐tuned solvent–antisolvent methods is presented. Enhanced scintillation yield and ultrafast decay are achieved. Defect‐driven emission mechanisms are revealed through cathodoluminescence and radioluminescence, shedding light on the underexplored role of the 0D Cs4PbBr6 and mixed 0D/3D ...
Mario Calora   +18 more
wiley   +1 more source

Las voces de la homoparentalidad. Resultados preliminares de una investigación

open access: yesTrabajo Social, 2014
El artículo plantea un análisis acerca de las narrativas familiares en torno a la crianza de niños y niñas en contextos de diversidad sexual —homoparentalidad—.
Bárbara Zapata Cadavid
doaj  

Investigación socio-religiosa y pastoral

open access: yesAllpanchis, 1972
Hay una pregunta que he escucharo varias veces de labios de sacerdotes, están preocupados de la efectividad de sus métodos pastorales actuales, no sólo porque esos métodos nunca estuvieron muy adaptados para determinados sectores (piénsese por ejemplo en
Manuel M. Marzal
doaj   +1 more source

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

Carta a Emilio Yunis

open access: yesCuadernos de Economía, 1999
Acontinuación publicamos una carta del profesor Jesús A. Bejarano en la que se describe la manera actual de asignación de presupuesto y la situación de la investigación en Ciencias Sociales al interior de la Universidad Nacional.
Bejarano Jesús Antonio
doaj  

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