Search results for "construct"
showing 10 items of 3723 documents
Investigating metaphors of musical involvement : Immersion, flow, interaction and incorporation
2018
The concept of immersion, despite being relatively unknown within music research, presents a potentially productive way for understanding the well acknowledged phenomenon of "being drawn into music". This paper 1) discusses immersion as a metaphor for conceptualizing musical involvement by drawing on the research into video games and virtual reality and 2) aims to clarify the metaphor of immersion by utilizing the concept of image schema to analyze it in relation to alternative metaphors of flow, interaction and incorporation. The theoretical stance of the paper is based on the paradigm of enactive cognitive sciences, which stresses the bodily, constructive and interactive nature of experie…
Muestra de los resultados obtenidos en el constructo metodología de evaluación de los docentes desde el concepto de Cohesión Social
2019
En el presente artículo se examinan los resultados obtenidos en el proyecto SECS-EVALNEC (Sistema Educativo y Cohesión Social: Diseño de un modelo de evaluación de necesidades) donde desde la perspectiva de la cohesión social (CS) analizamos el constructo de metodología de evaluación de los docentes en el nivel de 3º de Educación Secundaria Obligatoria (ESO), en un centro educativo del área metropolitana de Valencia. Desde la CS, se entiende la educación como el mejor instrumento de las políticas sociales para orientar la transformación y la mejora de las personas, los colectivos y la sociedad. A lo largo de esta investigación se estudian los distintos ítems desarrollados en el proyecto SEC…
AX-PET: Concept, proof of principle and first results with phantoms
2010
AX-PET is a novel PET concept based on long crystals axially arranged and orthogonal Wavelength shifter (WLS) strips, both individually readout by Geiger-mode Avalanche Photo Diodes (G-APD). Its design was conceived in order to reduce the parallax error and simultaneously improve spatial resolution and sensitivity. The assessment of the AX-PET concept and potential was carried out through a set of measurements comprising individual module characterizations and scans in coincidence mode of point-like and extended sources. The estimated energy and spatial resolutions from point-like measurements are R FWHM =11.6% (at 511 keV) and 1.7–1.9 mm (FWHM) respectively as measured with point-like sour…
Effect of inter-crystal scatter on estimation methods for random coincidences and subsequent correction.
2008
Random coincidences can contribute substantially to the background in positron emission tomography (PET). Several estimation methods are being used for correcting them. The goal of this study was to investigate the validity of techniques for random coincidence estimation, with various low-energy thresholds (LETs). Simulated singles list-mode data of the MADPET-II small animal PET scanner were used as input. The simulations have been performed using the GATE simulation toolkit. Several sources with different geometries have been employed. We evaluated the number of random events using three methods: delayed window (DW), singles rate (SR) and time histogram fitting (TH). Since the GATE simula…
Writing, Learning And The Development Of Expertise In Higher Education
2001
This chapter combines the issue of writing to learn with recent views of the development of prerequisites of professional expertise during higher education. The knowledge-intensive or symbolicanalytic work characteristic of today's professional jobs challenges educationalists to develop instructional methods that integrate domain-content learning with practising the general skills needed in today’s working life. It is argued here that constructivist and social constructivist views of learning offer promising starting points for developing instruction of this kind. Different traditional and novel fonns of writing are discussed from the viewpoint of these constructivist approaches and experti…
University Students´ Knowledge Construction during Face to Face Collaborative Writing
2014
Collaborative writing combines social processes of writing with cognitive knowledge construction processes, and thus may lead to deeper learning than individual working. This study examined students’ knowledge construction during face-to-face collaborative writing. University students (n = 21) prepared themselves for the collaborative task by reading about developmental theories in a course book and writing individual summaries of them. In small groups, the students discussed each others’ summaries and wrote a joint essay on one of the theories. The data comprise the students’ individual summaries (n = 21), the students’ discussions during the essay writing (8177 speech turns), and the stud…
La construction territoriale d'une offre périscolaire dans le département de la Côte d'Or : les familles, les collectivités et la réforme
2017
Cette enquête porte sur la mise en ouvre de la réforme de l'articulation des temps scolaires et périscolaires, dans le cadre de la loi d'orientation et de programmation pour la refondation de l’école de la République du 8 juillet 2013, en Côte d'Or. L'enquête dont les résultats sont présentés ici repose sur un matériel substantiel récolté entre 2015 et 2017 formé par une base de données formée à partir de projets éducatifs territoriaux fournis par les communes volontaires. L'objectif de l'enquête était de faire un répertoire de l'offre périscolaire en Bourgogne et de la manière dont les territoires peuvent ou non constituer des ressources dans la mise en ouvre de la réforme, tout en prenant…
Simplified analytical model for flexural response of external R.C. frames with smooth rebars
2018
In this paper an analytical model in a closed form able to reproduce the monotonic flexural response of external RC beam-column joints with smooth rebars is presented. The column is subjected to a constant vertical load and the beam to a monotonically increasing lateral force applied at the tip. The model is based on the flexural behavior of the beam and the column determined adopting a concentrated plasticity hinge model including slippage of the main reinforcing bars of the beam. A simplified bilinear moment-axial force domain is assumed to derive the ultimate moment associated with the design axial force. For the joint, a simple truss model is adopted to predict shear strength and panel …
On complexity and motion planning for co-rank one sub-Riemannian metrics
2004
In this paper, we study the motion planning problem for generic sub-Riemannian metrics of co-rank one. We give explicit expressions for the metric complexity (in the sense of Jean (10,11)), in terms of the elementary invariants of the problem. We construct asymptotic optimal syntheses. It turns out that among the results we show, the most complicated case is the 3-dimensional. Besides the generic C ∞ case, we study some non-generic generalizations in the analytic case.
A reconstruction algorithm for L-convex polyominoes
2006
AbstractWe give an algorithm that uniquely reconstruct an L-convex polyomino from the size of some special paths, called bordered L-paths.