2,013 research outputs found
Modelos para evaluar la situación de las bibliotecas escolares y la calidad de sus sitios web
El presente trabajo tiene dos objetivos: desarrollar un modelo exhaustivo de 44 indicadores para evaluar el funcionamiento o la situación de las bibliotecas escolares; y diseñar un modelo específico de 30 características para valorar objetivamente la calidad de los sitios web de las bibliotecas escolares. Además, se lleva a cabo la aplicación práctica de ambos modelos sobre las bibliotecas escolares de la ciudad de Badajoz (en la región de Extremadura, España) en 2012 con la finalidad de comprobar la validez de los modelos y obtener un ranking de las bibliotecas atendiendo a su situación y a la calidad de sus sitios web. Entre los resultados hallados se demuestra que no existe correlación entre el ranking obtenido por las bibliotecas escolares atendiendo a su situación actual y al ranking de calidad de sus sitios web.This paper approaches two objectives: 1) to develop a comprehensive model of 44 indicators to assess the performance or status of school libraries, and 2) to design a specific model of 30 objective features to assess the quality of school-based library web sites. In 2012, researchers documented the practical implementation of both models in school-based libraries in the City of Badajoz located in the region of Extremadura, Spain, in order to ascertain indicator validity and develop a library ranking in accord with operational quality of the respective websites. The results show that there is no correlation between the rank of school libraries based on current conditions and the quality rank of their associated websites.peerReviewe
Ètica i legislació de l'experimentació animal per a l'avenç científic
Treball presentat a l'assignatura de Deontologia i Veterinària Legal (21223
YouTube como Innovación Didáctica en el uso de las metodologías PBL y TEI y plurilingüismo para EPVA en el aula de Educación Secundaria. El enfoque constructivista y situacional de los entornos E.V.A. en el IES Bahía de Babel
Hoy más que nunca, el proceso de enseñanza de aprendizaje se ha visto transformado por el uso de las TIC y los EVA, incluyendo esto el paso evolutivo del material Pizarra y su función al InFocus entre otros, tanto así como la función Docente. En el presente estudio nos centraremos en la posibilidad que nos brinda la era digital del siglo XXI contexto actual. La sociedad que la compone entre otras generaciones es la generación Z, son aquellos nacidos entre 1994-2010, edades comprendidas entre 12 y 13 años, focalizando nuestra propuesta de nueva praxis de metodología didáctica, en el análisis de la aplicación de un programa de innovación, youtube como plataforma digital y subtitulado en el medio para la incorporación progresiva del plurilingüismo, la metodología está basada en la resolución de problemas PBL y T.E.I. en la asignatura de la especialidad de Dibujo, para los estudiantes del primer ciclo de secundaria en aras de la inclusión en el proceso de E/A. Nos apoyamos para dar soporte a esta teoría en el preámbulo del Decreto 87/2015, 3. que permite, realizar recomendaciones de metodología didáctica para los centros docentes de su competencia. Para ello, analizaremos, en primer lugar el fenómeno de la nueva forma de recepción de contenido de aprendizaje y conocimiento y la predisposición del alumnado ante la igualdad de condiciones materiales para el desarrollo de la actividad, además de las competencias a adquirir en la programación del susodicho ciclo educativo. Buscamos, el resultado de las tecnologías del Aprendizaje y el conocimiento al servicio del alumno, no como barrera, sino como puente a la adquisición de la competencia curricular. La propuesta del proyecto está acotada en el curso de 2º de la ESO, bloque 3 de Dibujo técnico, correspondiente al alumnado de entre 12 a 13 años de edad con un aula de ratio 30 alumnos. La propuesta innovadora, se sustenta en la necesidad del cambio de metodología, con la finalidad de llegar a todo el alumnado, inclusive cubriendo las necesidades del alumnado de diversidad. Esta actividad es gratuita, sólo los efectos especiales hacen que el alumno se desempeñe al máximo en la función, es una actividad transversal en asignaturas como informática, u otras áreas. El uso de un canal Youtube como instrumento en los entorno EVA para la metodología de resolución de problemas, aprendizaje basado en proyectos, estudio de casos y tutoría entre iguales
Is it possible to humanize birth assitance using the birth plan?
La restricción de los Derechos Humanos en maternidad es conocida mundialmente. Tras la
medicalización del parto, la mujer perdió autonomía, se vulneraron sus Derechos Humanos
y se comenzó a percibir un atisbo de violencia obstétrica. Incluir a la embarazada en la toma
de decisiones y respetar sus necesidades son recomendaciones de la evidencia científica para
humanizar la asistencia a la maternidad; y la Organización Mundial de la Salud (OMS) y el
Ministerio de Sanidad reconocen el Plan de Parto (PP) como el instrumento de apoyo para
esto. Esta investigación analizará si presentar un PP influye en la humanización del parto
y, consecuentemente, en la experiencia de parto de las madresThe lack of Human Rights in maternity is a global concern. After the medicalization of
childbirth, the woman lost autonomy, basic human rights were violated and early signs of
obstetric violence were identified. Including pregnant women in decision-making and
respecting their needs are evidence based practices to humanize childbirth; the World
Health Organization and Ministerio de Sanidad recognize the Birth Plan as the tool to
support this. The aim of this study is to analyse the effect of submitting a birth plan on the
humanization of childbirth and on women’s birth experiences
Ab initio, VTST and QCT study of the 1 2A'' potential energy surface of the N(2D) + O2(X3 Σg-) → O(3P) + NO(X2Π) reaction
An ab initio study based on the CASSCF ~Complete Active Space Self-Consistent Field! and CASPT2 (Second-Order Perturbation Theory on a CASSCF wave function) methods has been carried out on the ground 2A' potential energy surface (PES) involved in the relevant atmospheric reaction between N(2D) and O2 to produce O(3P) and NO. Also, some intersections between PES have been studied. The stationary points have been characterized and a grid of more than 800 points have been fitted to an analytical function. This analytical representation of the PES has been used to obtain kinetic and dynamic properties of the reaction. The rate constant of this reaction has been calculated at different levels of theory [variational transition state theory (VTST) and quasiclassical trajectory (QCT) methods] and has been compared with the experimental values (overall rate constant including physical electronic quenching) obtaining a good agreement. The QCT method has also been employed to study the properties of products from both the abstraction and insertion microscopic mechanisms. The vibrational distribution of NO arising from the reaction at 100 K has also been calculated and compared with the experimental ones. In this case, the agreement between the theoretical and the experimental results is not so good, the experimental vibrational distribution being less excited. Future work is necessary to determine the origin of this differenc
Ab initio, variational transition state theory and quasiclassical trajectory study on the lowest 2A' potential enegy surface involved in the N(2D) + O2(X3Σg-) → O(3P) + NO(X2Π) atmospheric reaction
A CASSCF and CASPT2 ab initio study has been carried out for the lowest 2A′ potential energy surface (2 2A′ PES) that correlates reactants and products of the N(2D)+O2→O(3P)+NO reaction. All the stationary points have been characterized and along with a grid of more than 600 ab initio points have been fitted to an analytical function. Afterwards, this analytical PES has been employed to study the kinetics [variational transition state theory (VTST) and quasiclassical trajectory (QCT) methods] and dynamics (QCT method) of the reaction. Concerning the rate constants, a good agreement with the experimental values corresponding to the global deactivation of N(2D) has been obtained. This suggests that this reaction is responsible of most of the reactivity of the N(2D)+O2 system. NO vibrational distributions have also been calculated. Although there is not a good agreement between the theoretical and experimental values, preliminary results show that they can become quite close by taking into account the contribution of the 1 2A″ PES
Las portadas históricas de Vogue como espacio de relación entre el arte y la publicidad a través de la moda
The ability to inspire the fashion of the environment that surrounds it, as a
science of study, as a discipline and from a psychological and sociological point of view,
is not usually questioned. In this sense, the question arises about its capacity for artistic
creation. Sometimes the artistic discipline is influenced by fashion and vice versa,
contaminating both discourses. The present text starts from a deep analysis of the
notions of art, fashion and advertising, pursuing the objective of knowing the limits that
separate the general and specific characteristics of an advertising event, such as fashion
shows, and those of an artistic act, from a business point of view, in the first case, and
from an aesthetic point of view, in the second. To this end, a combined analysis
methodology is applied, by means of a quantitative and qualitative study, in which we
use a methodological triangulation of the artistic past of the magazine Vogue and the
relations that have arisen thanks to the work of certain visual artists who left their mark
on the covers of the magazine. The results show the intertextual relations and
interrelations between the disciplines.La capacidad de inspirar la moda del entorno que le rodea, como ciencia de
estudio, como disciplina y desde un punto de vista psicológico y sociológico, no suele
cuestionarse. En este sentido, surge la pregunta sobre su capacidad de creación artística.
En ocasiones, la disciplina artística se ve influenciada por la moda y viceversa,
contaminando ambos discursos. El presente texto parte de un análisis profundo de las
nociones de arte, moda y publicidad, persiguiendo el objetivo de conocer los límites que
separan las características generales y específicas de un evento publicitario, como son
los desfiles de moda, y las de un acto artístico, desde un punto de vista empresarial, en
el primer caso, y desde un punto de vista estético, en el segundo. Para ello, se aplica una
metodología de análisis combinada, mediante un estudio cuantitativo y cualitativo, en
el que se utiliza una triangulación metodológica del pasado artístico de la revista Vogue
y las relaciones surgidas gracias al trabajo de determinados artistas plásticos que
dejaron su huella en las portadas de la revista. Los resultados muestran las relaciones
intertextuales y las interrelaciones entre las disciplinas
Sedimentology, stratigraphy and landscape evolution of a coastal dune system, Traba, NW Spain
Ab initio ground potential energy surface and quasiclassical trajectory study of the O(1D)+CH4(X1A1)→OH(X 2Π)+CH3(X 2A ″2) reaction dynamics
An ab initio study of the ground potential energy surface (PES) of the O(1D)+CH4→OH+CH3 reaction has been performed using the second and fourth order Møller-Plesset methods with a large basis set. From the ab initio data a triatomic analytical ground PES with the methyl group treated as an atom of 15.0 amu has been derived. This PES has been employed to study the dynamics of the reaction by means of the quasiclassical trajectory (QCT) method. A good agreement between the experimental and QCT OH rovibrational distributions at a collision energy of 0.212 eV with the methane molecule at 298 K has been obtained. The analysis of the microscopic reaction mechanism shows that the reaction takes place almost exclusively through the insertion of the O(1D) atom into a C-H bond, due to the presence of the deep (CH3)OH minimum, and the resulting trajectories may be direct or nondirect (short-lived collision complexes mainly) with about the same probability. The OH vibrational distribution arising from the direct mechanism is inverted, while the nondirect mechanism leads to a noninverted one. There is some tendency to give broader OH rotational distributions peaking at higher N′ values, particularly for the vibrational levels v′ = 0-1, in the case of the nondirect trajectories. The PES derived here may be used in dynamics studies under conditions where the methyl group motions are not strongly coupled to the motions leading to reaction
San Pedro Martir observations of microvariability in obscured quasars
Fast brightness variations are a unique tool to probe the innermost regions
of active galactic nuclei (AGN). These variations are called microvariability
or intra-night variability, and this phenomenon has been monitored in samples
of blazars and unobscured AGNs. Detecting optical microvariations in targets
hidden by the obscuring torus is a challenging task because the region
responsible for the variations is hidden from our sight. However, there have
been reports of fast variations in obscured Seyfert galaxies in X-rays, which
rises the question whether microvariations can also be detected in obscured
AGNs in the optical regime. Because the expected variations are very small and
can easily be lost within the noise, the analysis requires a statistical
approach. We report the use of a one-way analysis of variance, ANOVA, with
which we searched for microvariability. ANOVA was successfully employed in
previous studies of unobscured AGNs. As a result, we found microvariable events
during three observing blocks: in two we observed the same object (Mrk 477),
and in another, J0759+5050. The results on Mrk 477 confirm previous findings.
However, since Mrk 477 is quite a peculiar target with hidden broad-line
regions, we cannot rule out the possibility that we have serendipitously chosen
a target prone to variations.Comment: Research note, 5 pages, 2 figures, accepted for publication in
Astronomy and Astrophysic
- …