Results 31 to 40 of about 31,531,991 (292)

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

La administración electrónica. Un desafío del derecho a la participación ciudadana

Ars Iuris Salmanticensis, 2020
El nuevo contexto social globalizado y la falta de consolidación de las instituciones públicas se ven convulsionadas por el avance sistemático en la falta de respuesta a las demandas que los ciudadanos efectúan en los diversos ámbitos de las ...
Ricardo Antonio Gaido
doaj  

E-Gobierno: ¿Modernización o Fosilización de la Administración?

El Profesional de la Informacion, 2011
After a general introduction to concepts such as eGovernment, eDemocracy and eGovernance, a brief reflection on the situation of the Spanish public administration in relation to the internet is offered. The opportunities that information and communication technologies offer to carry out deep reforms in administrative procedures is discussed.
openaire   +2 more sources

Current‐Driven Chirality Detection of Magnetic Textures in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Current‐assisted anisotropic magnetoresistance measurements in individual Ni/Au cylindrical nanowires enable detection of vortex chirality near Au segments and selective magnetic reversal in defined wire sections at magnetic fields lower than the propagation field. This approach provides a simple, cost‐effective, and non‐invasive method for probing and
Javier Rial, Alejandro Rivelles, Sofia Caspani, Célia T. Sousa, Rodrigo Guedas, José Luis Prieto, Mariana P. Proença   +6 more
wiley   +1 more source

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

Advanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler, Pau Ferri, Francisco Javier Escobar‐Bedia, Álvaro Mayoral, Alejandro Vidal‐Moya, Richard Kendra, Chen Lei, Miguel Palomino, Fernando Rey, Lukáš Grajciar, Christopher James Heard, Pedro Serna, Mercedes Boronat, Cristina Martínez, Manuel Moliner   +14 more
wiley   +1 more source

Què és la tecnopolítica? Esquema conceptual per a entendre la política en l’era digital

IDP, 2017
En aquest article volem reconsiderar el terme tecnopolítica i veure què significa en la política democràtica dels nostres temps. Comencem indagant l’ús inicial del terme i com aquest s’ha anat transformant per mitjà de les diverses i contradictòries ...
Can Kurban, Ismael Peña-López, Maria Haberer   +2 more
doaj   +2 more sources

A Mechanical sp2‐Jail for C60 Fullerene

Angewandte Chemie, EarlyView.
A rigid bisporphyrin receptor with an exceptionally compact 3D cavity functions as a molecular “mechanical jail”, tightly enclosing C60 fullerene. Near‐perfect shape complementarity affords ultrahigh binding affinity while imposing a large kinetic barrier for guest exchange, rendering encapsulation effectively irreversible under ambient conditions ...
A. Priscila Gia, Fernando G. Guijarro, Pau Armada, Daniel Aranda, Josefina Perles, Enrique Ortí, Juan Aragó, David González‐Rodríguez, Alberto de Juan   +8 more
wiley   +2 more sources

Revisión Teórica de los Factores que Inhiben en el Ciudadano el Uso del e-Gobierno

European Scientific Journal ESJ, 2022
El objetivo de la presente investigación fue analizar la literatura relativa a los factores que inhiben el uso de los servicios electrónicos que presta una institución gubernamental mediante el método documental basado en una revisión bibliográfica de los principales autores en materia de gobierno electrónico. Los resultados destacan la importancia del
José Alfredo León Cobos, José René Arroyo Ávila, María del Rosario de Fátima Alvídrez Díaz, Oscar Alejandro Viramontes-Olivas, Víctor Alonso Domínguez Ríos   +4 more
openaire   +1 more source

Volatile Memristive Devices With Tunable Temporal Dynamics For Event‐Based Sensing

Advanced Materials, EarlyView.
Tunable volatile memristive devices can serve various neural‐inspired tasks that require different time windows of information retention. The ionic‐based volatility of the presented Pt/a‐STO/TaOx/Ta device stack can be reproducibly and controllably tuned in multiple ways.
Dimitrios Spithouris, Johannes Hellwig, Hugh Greatorex, Clemens Wittberg, Panagiotis Koutsogiannis, César Magén, Elisabetta Chicca, Regina Dittmann   +7 more
wiley   +1 more source

Circulación del SARS-CoV-2 en embarazadas del centro de Argentina

Revista de la Facultad de Ciencias Médicas de Córdoba
Introducción: El SARS-CoV-2 puede provocar una infección más grave durante el embarazo. Sin embargo, faltan datos a nivel poblacional sobre COVID-19 y la adopción de vacunas en este grupo de población, especialmente en América del Sur.
Leticia D´Augero, Gonzalo M. Castro, Paola Sicilia, Eugenio Cecchetto, Laura Lopez, Graciela Scruzzi, Paula Barbero, Maria del Pilar Diaz, Maria Gabriela Babas, Viviana Re, Maria Belen Pisano   +10 more
doaj   +1 more source