Results 71 to 80 of about 546,154 (304)

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

open access: yesAdvanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim   +17 more
wiley   +1 more source

Factores para la puesta en marcha y el éxito de microempresas asociativas creadas por jóvenes egresados universitarios [PDF]

open access: yes, 2013
El fomento del emprendimiento desde las universidades es una función académica cada vez más valorada. Sin embargo, existen muy pocos trabajos que aborden las barreras y los elementos facilitadores que encuentran los emprendedores universitarios.
Coque Martínez, Jorge   +2 more
core   +5 more sources

Los organismos defensores de los derechos universitarios en México, Una mirada desde la REDDU [PDF]

open access: yes, 2017
El nacimiento de la universidad en Occidente se debió al reclamo y ejercicio de los que hoy denominamos derechos universitarios, protegidos por organismos llamados defensorías, procuradurías o comisiones.
BERNAL AGUIRRE, JUAN   +5 more
core  

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

open access: yesAdvanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez   +8 more
wiley   +1 more source

Respuestas a universitarios

open access: yesECA: Estudios Centroamericanos, 1965
No abstract available.      ECA Estudios Centroamericanos, Vol. 20, No. 207, 1965: 202-203.
openaire   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

open access: yesAdvanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti   +12 more
wiley   +1 more source

Presentation [PDF]

open access: yes, 2015
The figure of the University Ombudsperson was created in Spain by means of the 14th section of the University Law, as a guarantor, who must “take care for the respect of the rights and freedom of teachers, students and staff, to act before the actions ...
Acale Sánchez, María Milagros
core   +1 more source

Stable Protein‐Based G‐Quadruplex‐Derived Supramolecular Bioinks as Tunable ECM‐Mimetic Constructs Assembled by Combining Non‐Covalent and Covalent Strategies

open access: yesAdvanced Materials, EarlyView.
Harnessing the synergistic interplay of supramolecular self‐assembly, under macromolecular crowding conditions, and enzymatic‐mediated covalent crosslinking toward a stable protein‐based G‐quadruplex‐derived supramolecular bioink. This bioinspired strategy enables the biofabrication of complex and tunable ECM‐mimetic constructs, providing a platform ...
Vera Sousa   +6 more
wiley   +1 more source

Delayed Halide‐Rich Molecular Passivation of CsPbCl3 Perovskite Nanocrystals Enables Bright Violet Light‐Emitting Diodes

open access: yesAngewandte Chemie, EarlyView.
POCl3 enables delayed dual passivation in CsPbCl3 nanocrystals by slowly releasing Cl‐containing and phosphonic species that heal halide vacancies and Pb‐related defects over time. This self‐healing boosts PLQY by >40‐fold, preserves efficient violet emission for over 2 months in air, and yields a record 409 cd m−2 luminance for CsPbCl3 violet LEDs ...
Nadesh Fiuza‐Maneiro   +14 more
wiley   +2 more sources

Kanan Herramientas para erradicar la violencia en la Universidad

open access: yesESPACIO I+D: Innovación más Desarrollo
La Universidad Autónoma de Chiapas, acorde con el compromiso constitucional de promover, respetar, proteger y garantizar los derechos humanos, en armonía con la Ley General de Acceso a las Mujeres a una Vida Libre de Violencia, la Ley Federal para ...
Defensoría de los Derechos Humanos Universitarios
doaj   +2 more sources

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