Repositório Científico do Instituto Politécnico de Castelo Branco
RC IPCB - Repositório Científico
Entradas recentes
3D femur reconstruction using a robotized ultrasound probe
Publication . Torres, Pedro; Sanches, J. Miguel; Gonçalves, Paulo; Martins, Jorge M.M.
Three-dimensional reconstruction of images is a fundamental procedure in medical imaging because it allows to build virtual models of anatomical units of the human body, useful in several areas, such as in surgical navigation. This paper presents a non freehand Ultrasound acquisition system for human fêmur reconstruction where the probe displacement and position are accurately controlled by an anthropomorphic arm robot. The aim of this system is to acquire a sequence of 2D parallel cross-sections evenly spaced along the displacement direction in order to perform na accurate 3D reconstruction of the femur to be used in the scope of computer-assisted orthopedic surgery. Here, the system is described as well as the image processing and calibration procedures implemented. Results with real data are presented to illustrate the operation of the system.
Emergency management concepts: A network approach
Publication . Caseiro, Nuno; Trigo, Paulo
The socio-technical systems that make part of our lives are subject to disturbances through disasters that can have serious consequences (at the limit, completely destabilizing the basis system). To deal with this situation modern societies have developed structures, tools and mechanisms that aim to reduce the probability of occurrence of these negative situations. Good decision making is critical and information is needed when analyzing the environment for risks, when defining emergency plans, when training agents and society to deal with the foreseen accidents. All elements and people involved in the emergency cycle phases need to have a common mental structure to deal with information issues. The present work is an exploratory study that aims to identify a semantic base underlying the mental model from the field of emergency management, using a collaborative approach to build it. Mental models, underlie how people structure concepts; how they relate them; what concepts they recall first and which concepts they associate with them. We use a group Civil protection graduates to verify the suitability of the proposed methodology. This approach merges both the power of collaborative techniques and the use of social sciences methods to obtain the data that will allow to build a network of concepts that represents the participants’ mental models. The data obtained, by aggregating all the answers, allow us to deepen the analysis of the resulting network, to understand connections and main group concepts in this domain. Some of the questions we want to answer are: (1) type and intensity of the relations defined; (2) network coherence, by searching missing key nodes or relations.
A hybrid modelling for both pressure-dependent and volume-based demand in pressure-driven analysis
Publication . Muranho, João; Sousa, Joaquim; Ferreira, Ana Maria; Marques, Alfeu Sá; Gomes, Abel
Water distribution network (WDN) simulation models are usually classified as demanddriven or pressure-driven, depending on whether the demands are independent of or dependent on network pressures, respectively. In real-world networks, both types of demands coexist in the same building. This paper presents a hybrid modelling approach that combines volume-based and pressuredependent demands in the same model, allowing for different pressure–demand relationships. This hybrid modelling approach is intended to produce more realistic results when modelling WDNs, and it was implemented in WaterNetGen, an EPANET extension.
La partitura gráfica como recurso didáctico en la educación musical: un estudio de caso con docentes en formación
Publication . Bravo-Fuentes, Paloma; IPCB. ESART
Esta investigación aborda la necesidad de transformar la formación musical del pro-fesorado, tradicionalmente centrada en la notación convencional, incorporando las partituras gráficas como una herramienta pedagógica creativa y accesible. Un enfoque cualitativo con diseño fenomenológico y estudio de caso instrumental, explora las experiencias y significados atribuidos por estudiantes del Grado en Educación durante el curso 2024/2025. A través de entrevistas semiestructuradas y análisis temático, se identifican percepciones que destacan el potencial expresivo, emocional y educa-tivo de estas representaciones visuales del sonido y su capacidad para democratizar la creación musical sin necesidad de cono-cimientos previos musicales. Los hallazgos indican que las partituras gráficas fomentan la participación activa, autoexpresión y com-prensión crítica de los fenómenos sonoros, y son percibidas por el alumnado como es-pecialmente útiles y aplicables en las aulas de Educación Infantil y Primaria, donde la creatividad, el juego y la libre expresión son valorados como principios fundamentales del aprendizaje musical
A disciplina de formação musical em Portugal: identidade e horizontes pedagógicos
Publication . Carneiro, Hermano Filipe Gomes; IPCB. ESART
A evolução histórica da disciplina de Formação Musical em Portugal permite-nos constatar que a sua identidade parece resultar, em vários aspetos, da forma como, ao longo dos anos, esta disciplina tem sido pensada. Este texto procura, assim, evidenciar os resultados mais relevantes de uma investigação sobre a disciplina de Formação Musical, nomeadamente o seu desenvolvimento didático e pedagógico e a influência que este exerceu na definição atual da identidade da disciplina de Formação Musical. Para tal, considerou-se o estudo de caso intrínseco realizado, que teve como fonte de dados os Documentos Oficiais Pedagógicos de Formação Musical e as entrevistas realizadas a treze professores de música de todos os níveis de ensino, que têm ou já tiveram algum tipo de ligação profissional à disciplina. Das conclusões formuladas sobressai a ideia de que a dis-ciplina de Formação Musical desempenha um papel estruturante no currículo do ensino artístico e especializado da música e que a ela convergem saberes e práticas que, pela sua diversidade, a transformam num espaço pedagógico dinâmico, orientado para a compreensão da linguagem musical e para o desenvolvimento das competências artísticas dos seus alunos.