Encontrados 15 documentos, a visualizar página 1 de 2
Very high-order finite difference method on arbitrary geometries with Cartesian...
Clain, Stéphane; Lopes, Diogo; Pereira, Rui M. S.; Pereira, Paulo A.An arbitrary order finite difference method for solving non-linear convection Diffusion Reaction equations in curved boundary domains with Cartesian grid is proposed. Ghost points' values are determined with the Reconstruction Off-Site Data based on a polynomial interpolation using the least square method with constraints to enforce the boundary conditions. We propose a second-, fourth-, and sixth-order schemes...
Structural schemes for one dimension stationary equations
Clain, Stéphane; Pereira, Rui M. S.; Pereira, Paulo A.; Lopes, DiogoIn this paper, we propose a new paradigm for finite differences numerical methods, based on compact schemes to provide high order accurate approximations of a smooth solution. The method involves its derivatives approximations at the grid points and the construction of structural equations deriving from the kernels of a matrix that gathers the variables belonging to a small stencil. Numerical schemes involve co...
Translation and validation of the Clinician Administered PTSD Scale (CAPS-CA-5)...
Barroca, Inês; Velosa, Ana; Cotovio, Gonçalo; Santos, Catarina M.; Riggi, Giulia; Costa, Rita P.; Macieira, Joana; Machado, Leonor S.Introduction: The aim of this study was to translate and validate into European Portuguese the CAPS-CA-5 (Clinician Administered PTSD Scale for Children and Adolescents), a semi-structured scale for the diagnosis of post-traumatic stress disorder in children and adolescents, according to the DSM-5 criteria. Material and Methods: This study was developed in three stages. In the first stage, the translation and b...
Water management in several types of soil – A hands-on Science experiment for s...
Caldeira, Amélia; Lopes, S. O.; Malheiro, M. Teresa; Pereira, Rui M. S.; Gonçalves, A. Manuela; Araújo, Nuno Miguel Faria; Pereira, Paulo A.Young people should become aware of the fact that water is an important but rare resource and learn how to manage it efficiently. We present a project with some experiments for young students with that goal in mind. Students classified different types of soil and measured their electrical conductivity over time after being watered. They had to compare mathematical models that model soil behaviour in these circu...
Translation and Validation of the Clinician Administered PTSD Scale (CAPS-CA-5)...
Barroca, Inês; Velosa, Ana; Cotovio, Gonçalo; Santos, Catarina M.; Riggi, Giulia; Costa, Rita P.; Macieira, Joana; Machado, Leonor S.Introduction: The aim of this study was to translate and validate into European Portuguese the CAPS-CA-5 (Clinician Administered PTSD Scale for Children and Adolescents), a semi-structured scale for the diagnosis of post-traumatic stress disorder in children and adolescents, according to the DSM-5 criteria.Material and Methods: This study was developed in three stages. In the first stage, the translation and ba...
Translation and Validation of the Clinician Administered PTSD Scale (CAPS-CA-5)...
Barroca, Inês; Velosa, Ana; Cotovio, Gonçalo; Santos, Catarina M.; Riggi, Giulia; Costa, Rita P.; Macieira, Joana; Machado, Leonor S.Introduction: The aim of this study was to translate and validate into European Portuguese the CAPS-CA-5 (Clinician Administered PTSD Scale for Children and Adolescents), a semi-structured scale for the diagnosis of post-traumatic stress disorder in children and adolescents, according to the DSM-5 criteria. Material and Methods: This study was developed in three stages. In the first stage, the translation and b...
A decision support system for TV self-promotion scheduling
Fontes, Dalila B. M. M.; Pereira, Paulo A.; Fontes, A. C. C. FontesThis paper describes a Decision Support System (DSS) that aims to plan and maintain the weekly self-promotion space for an over the air TV station. The self-promotion plan requires the assignment of several self-promotion advertisements to a given set of available time slots over a pre-specified planning period. The DSS consists of a data base, a statistic module, an optimization module, and a user interface. T...
Hands on experiments about water needs in agriculture and their mathematical mo...
Malheiro, M. Teresa; Pereira, Paulo A.; Pereira, Rui M. S.; Caldeira, Amélia C.; Gonçalves, A. Manuela; Lopes, S. O.In this paper, we intend to present the planning of experiences that can be presented to students of school age. These experiments have the goal of sensitizing students to climate changes, the problem of water scarcity and the need to save it. At the same time, the experiences give an opportunity to show through concrete cases how Mathematics can model natural phenomena in order to understand them better and pr...
Optimal control applied to an irrigation planning problem: a real case study in...
Lopes, S. O.; Pereira, Rui M. S.; Pereira, Paulo A.; Caldeira, Amélia; Fonte, VictorIn this paper, a daily plan model to the irrigation of a crop field using optimal control was developed. This daily plan model have in consideration: weather data (temperatures, rainfall, wind speed), the type of crop, the location, humidity in the soil at the initial time, the type of soil and the type of irrigation. The aim is to minimise the water used in the irrigation systems ensuring that the field crop i...
Conduta académica em estudantes de medicina: atitudes, perceções e fatores que ...
Barroca, Inês; Pereira, Paulo A.; Neto, IsabelIntrodução. Comportamentos académicos desonestos são praticados em todo o mundo, levantando a preocupação crescente com a falta de competências dos estudantes no seu futuro profissional. Objetivos. Avaliar a conduta académica dos estudantes de medicina da Faculdade de Ciências da Saúde; analisar a perceção dos estudantes quanto à prática de comportamentos desonestos. Materiais e métodos. Foi aplicado um questio...