Results 31 to 40 of about 968 (176)

Optical, Electrical, and Optoelectronic Characterization of Ti‐Supersaturated Gallium Arsenide

physica status solidi (a), Volume 221, Issue 24, December 2024.
Herein, a detailed investigation on the properties of supersaturated GaAs using Ti+ implantation followed by nanosecond pulsed laser melting (PLM) is presented. Absorptance measurements show a sub‐bandgap absorption (up to 6.5% for λ = 1000 nm) of the samples. The photo‐response measured below the bandgap originates from point defects introduced by the
Sari Algaidy, Daniel Caudevilla, Guillermo Godoy‐Pérez, Rafael Benítez‐Fernández, Francisco Pérez‐Zenteno, Sebastián Duarte‐Cano, Rodrigo García‐Hernansanz, Enrique San Andrés, Eric García‐Hemme, Javier Olea, Jan Siegel, José Gonzalo, David Pastor, Álvaro del Prado   +13 more
wiley   +1 more source

Native Oxide Layer Role during Cryogenic‐Temperature Ion Implantations in Germanium

physica status solidi (a), Volume 221, Issue 24, December 2024.
In cryogenic temperature implantations, the native oxide plays a critical role. Herein, the structural properties and chemical composition of germanium samples implanted with tellurium under different conditions and doses are shown. The results underscore the significance of etching the native oxide layer, as it stops the tellurium‐implanted ions while
Daniel Caudevilla, Francisco José Pérez‐Zenteno, Sebastián Duarte‐Cano, Sari Algaidy, Rafael Benítez‐Fernández, Guilleromo Godoy‐Pérez, Javier Olea, Enrique San Andrés, Rodrigo García‐Hernansanz, Álvaro del Prado, Ignacio Mártil, David Pastor, Eric García‐Hemme   +12 more
wiley   +1 more source

Cómo desean trabajar los alumnos en el laboratorio de Biología. Un acercamiento a las propuestas didácticas actuales

Revista Iberoamericana de Educación, 2007
En este artículo se analizan las concepciones sobre los trabajos prácticos de laboratorio en biología de un grupo de alumnos de 4.º año de la escuela secundaria.
Stella Maris Álvarez
doaj  

¿Cómo investigar una práctica social?

Ciencia, Docencia y Tecnología, 2023
En este artículo, nos preguntamos: ¿cómo los científicos diseñan nuevos lugares para investigar prácticas sociales? Para dar respuesta, tomamos aportes de los Estudios sobre Ciencia, Tecnología y Sociedad y la Filosofía de la Ciencia.
Ezequiel Sosiuk, Agustín Mauro
doaj   +1 more source

Allergic inflammation triggers dyslipidemia via IgG signalling

Allergy, Volume 79, Issue 10, Page 2680-2699, October 2024.
Allergic inflammation induces a unique lipid signature in circulation that is characterized by triglyceride changes. Blood changes in triglyceride levels and composition during allergic inflammation are driven by IgG signalling. IgG‐mediated allergic inflammation regulates lipid metabolism, which may contribute to atherosclerosis and, ultimately, to ...
Nieves Fernández‐Gallego, Raquel Castillo‐González, Lucía Moreno‐Serna, Antonio J. García‐Cívico, Elisa Sánchez‐Martínez, Celia López‐Sanz, Ana Luiza Fontes, Lígia L. Pimentel, Ana Gradillas, David Obeso, René Neuhaus, Marta Ramírez‐Huesca, Ignacio Ruiz‐Fernández, Emilio Nuñez‐Borque, Yolanda R. Carrasco, Borja Ibáñez, Pilar Martín, Carlos Blanco, Coral Barbas, Domingo Barber, Luis M. Rodríguez‐Alcalá, Alma Villaseñor, Vanesa Esteban, Francisco Sánchez‐Madrid, Rodrigo Jiménez‐Saiz   +24 more
wiley   +1 more source

Laboratorio de ensayo de materiales

Ingeniería e Investigación, 1981
Las actividades habituales y los trabajos mas importantes efectuados durante el último decenio por el laboratorio de Ensayo de Materiales son el tema de este articulo.
Carlos A. Rodríguez, Carlos Juan Gutiérrez   +1 more
doaj  

Alpha‐Gal, epitope responsible for allergy to red meat, in the Mediterranean tick Hyalomma lusitanicum

Medical and Veterinary Entomology, Volume 38, Issue 3, Page 366-371, September 2024.
The presence of α‐Gal epitope ( was confirmed by the presence of reactive proteins of >250 kDa in samples from engorged and unfed H. lusitanicum ticks. The highest concentrations of α‐Gal were detected in salivary glands. Neither sex nor diet influenced the concentration of α‐Gal, which seems to indicate its endogenous production and its possible ...
Ángela Valcárcel, Andrea Briones Montero, Marta Rodero, Juan González‐Fernández, A. Sonia Olmeda, Félix Valcárcel, Carmen Cuéllar   +6 more
wiley   +1 more source

Report on the establishment of the safe shelf life of certain ready‐to‐eat foods, sliced and prepacked in retail, in relation to the risk of Listeria monocytogenes

Food Risk Assess Europe, Volume 2, Issue 3, July 2024.
Abstract The Barcelona Public Health Agency (ASPB) asked the Scientific Advisory Committee on Food Safety for an opinion on the safe shelf life of Listeria monocytogenes in certain products (cheeses, cooked meats, including pâtés, and cured meats) sliced and prepackaged prior to retail sale.
Sara Bover Cid, José Juan Rodríguez Jerez, Samuel Portaña Tudela, Santiago Rodellar Torras, Montserrat Vila Brugalla, Maria Victòria Castell Garralda, Laura Alcalde Sanz   +6 more
wiley   +1 more source

Plant‐based meat analogues marketed in Catalonia: analysis of contaminants, essential elements, microbiological and physicochemical status, dietary intake estimation and health risk assessment

Food Risk Assess Europe, Volume 2, Issue 3, July 2024.
Abstract The latest barometer of food safety in Catalonia conducted by the Catalan Food Safety Agency (ACSA for its initials in Catalan) in 2021 shows that 28.7% of the population consumes meat analogues (substitutes). The main reasons for consuming this type of food are animal welfare, followed by environmental and health reasons.
Martí Nadal Lomas, Nieves González Paradell, Victòria Castell Garralda, Laura Alcalde Sanz, Josep Calderón, Sara Sabaté   +5 more
wiley   +1 more source

Secuencias de apertura experimental y escritura de artículos en el laboratorio: un itinerario de mejora de los trabajos prácticos en el laboratorio

Enseñanza de las Ciencias, 2013
Se presenta una secuencia didáctica formada por tres trabajos prácticos de laboratorio en formato de indagación. En cada uno de los trabajos prácticos se ha incrementado el grado de apertura y participación del alumnado respecto al anterior, y se ha ...
Jordi Domènech Casal
doaj   +3 more sources