Search results for "FLE"
showing 10 items of 3517 documents
Nylon-Supported Plasmonic Assay Based on the Aggregation of Silver Nanoparticles: In Situ Determination of Hydrogen Sulfide-like Compounds in Breath …
2019
A procedure for supporting silver nanoparticles (AgNPs) on nylon is proposed. Besides, the membrane has been developed as a solid-phase colorimetric plasmonic sensor for volatile sulfide compounds (VSCs) like H2S, CH3SH, and (CH3)2S. AgNP behavior in the membrane has been studied by UV-vis diffuse reflectance spectrometry, Raman spectrometry, High-resolution transmission electron microscopy (HR-TEM), and Scanning electron microscopy (SEM). The sensor responded by changing its color from yellow in absence of VSCs to several orange/brown colors in the function of VSC concentration as occurs in solution; an increase in the hydrodynamic diameter, estimated by both asymmetrical flow field-flow f…
Computing the Arrangement of Circles on a Sphere, with Applications in Structural Biology
2009
International audience; Balls and spheres are the simplest modeling primitives after affine ones, which accounts for their ubiquitousness in Computer Science and Applied Mathematics. Amongst the many applications, we may cite their prevalence when it comes to modeling our ambient 3D space, or to handle molecular shapes using Van der Waals models. If most of the applications developed so far are based upon simple geometric tests between balls, in particular the intersection test, a number of applications would obviously benefit from finer pieces of information. Consider a sphere $S_0$ and a list of circles on it, each such circle stemming from the intersection between $S_0$ and another spher…
Isolated self-assembled InAs/InP(001) quantum wires obtained by controlling the growth front evolution
2007
6 páginas, 5 figuras. In this work we explore the first stages of quantum wire (QWR) formation studying the evolution of the growth front for InAs coverages below the critical thickness, θc, determined by reflection high energy electron diffraction (RHEED). Our results obtained by in situ measurement of the accumulated stress evolution during InAs growth on InP(001) show that the relaxation process starts at a certain InAs coverage θRθR this ensemble of isolated nanostructures progressively evolves towards QWRs that cover the whole surface for θ = θc. These results allow for a better understanding of the self-assembling process of QWRs and enable the study of the individual properties of In…
La práctica del aula en la Formación de Maestros
2004
Este trabajo forma parte de un Proyecto de Investigación para contribuir a la búsqueda de una metodología en la Formación de Maestros, en la cual se vincule la teoría y la práctica educativas, siguiendo un modelo de trabajo interdisciplinar y colaborativo entre los miembros de un grupo de profesores de la Universitat JAUME I (Grupo Interdisciplinar de Investigación Docente, GIID). Mostramos cómo aprovechar situaciones reales de aula grabadas en vídeo y analizadas bajo presupuestos teóricos determinados, para la elaboración de materiales docentes universitarios así como el proceso de validación del trabajo que el GIID ha propiciado. This work is part of a research project to contribute to th…
La reconstrucción del conocimiento en la formación de maestros a partir de una metodología centrada en situaciones dialógicas
2005
Este proyecto se justifica desde dos aspectos fundamentales: por un lado, plantear una metodología universitaria que tenga como punto de partida las ideas y concepciones sobre la enseñanza que tienen nuestros estudiantes y, por otro, la necesidad de poner en práctica el uso de algunos materiales elaborados por el Grupo Interdisciplinar de Investigación Docente en años anteriores y que continúan completándose durante el presente curso. Se trata de diseñar una metodología docente que, desde la unión de la teoría y la práctica en las situaciones de diálogo, facilite la reconstrucción del conocimiento que tienen los estudiantes sobre la enseñanza. Pretendemos comprobar los cambios que se produc…
Aiming routines and their electrocortical concomitants among competitive rifle shooters
2000
The present study focused on an examination of competitive shooters' aiming process during a rifle shooting task. The barrel movements of the rifle, as detected by a laser system during the last 1000-ms time period preceding the triggering, were recorded from six elite and six pre-elite shooters. Electrocortical slow potentials (SPs) from frontal (Fz), centro-lateral (C3, C4), and occipital (Oz) brain areas were recorded to get an additional insight into the underlying covert processing. The results suggested that the elite shooters did not pull the trigger until they reached a sustained rifle position. In the pre-elite shooters the rifle appeared to be in a less stable position, and their …
Norm continuity and related notions for semigroups on Banach spaces
1996
We find some conditions on a c0-semigroup on a Banach space and its resolvent connected with the norm continuity of the semigroup. We use them to get characterizations of norm continuous, eventually norm continuous and eventually compact semigroups on Hilbert spaces in terms of the growth of the resolvent of their generator.
Social cognition theories and behavior change in COVID-19: A conceptual review.
2022
The COVID-19 pandemic has had unprecedented health, economic, and social consequences worldwide. Although contact reductions and wearing face coverings have reduced infection rates, and vaccines have reduced illness severity, emergence of new variants of the coronavirus that causes COVID-19, and the shift from pandemic to endemic patterns of infection, highlights the importance of ongoing preventive behavior adherence to manage future outbreaks. Research applying social cognition theories may assist in explaining variance in these behaviors and inform the development of efficacious behavior change interventions to promote adherence. In the present article, we summarize research applying the…
Assessing hot and cool executive functions in preschoolers: affective flexibility predicts emotion regulation
2018
Affective flexibility (AF) is the ability to alternate between processing emotional and non-emotional information. This hot executive function has been understudied during early development. The fi...
A cognitive-behavioural intervention improves cognition in caregivers of people with autism spectrum disorder: A pilot study
2017
Abstract As postulated by the stress process model, chronically stressed individuals, such as caregivers of people with chronic psychological disorders, have poorer cognitive performance and higher age-related cognitive decline than individuals not exposed to chronic stress. When analysing this topic in caregivers, the majority of research has been conducted in populations in which the care recipient has dementia and/or Alzheimer's disease, while relatively few studies have analysed cognition in caregivers of offspring with autism spectrum disorder (ASD). The main objective of this pilot study was to analyse the effect of a cognitive-behavioural intervention on cognition in caregivers of pe…