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On the road of participatory action research in a school - The project “When do...
Gonçalves, Nuno; Bertão, AnaIn times of rapid social transformations, education will have to adapt and respond to new challenges, in the right direction to safeguard the rights of all people. This process requires that intervention in the school context values participatory, cooperative, reflective and socio-critical learning, which aims to promote the development of the school, students and communities, as well as contributing to the gro...
Guia de Boas Práticas para a manutenção de Faixas de Gestão de Combustível
Folgôa Batista, Maria Teresa; Moreira, André; Afonso, José; Lopes, Inês; Querido, Cassandra; Freire, António; Marques, Pedro; Rocha, IsildaA preservação da Floresta, ao nível dos ecossistemas e dos recursos existentes, passa pela construção de uma estratégia de defesa contra os incêndios, aliada à proteção das espécies, respeitando a biodiversidade da região onde se executa a gestão de combustível, não obstante o cumprimento da legislação que define os critérios para a execução das faixas de gestão de combustível.Neste sentido, este manuel pretend...
Dealing with Overfitting in the Context of Liveness Detection Using FeatherNets...
Leão, Miguel; Gonçalves, NunoWith the increased use of machine learning for liveness detection solutions comes some shortcomings like overfitting, where the model adapts perfectly to the training set, becoming unusable when used with the testing set, defeating the purpose of machine learning. This paper proposes how to approach overfitting without altering the model used by focusing on the input and output information of the model. The inp...
MorDeephy: Face Morphing Detection via Fused Classification
Medvedev, Iurii; Shadmand, Farhad; Gonçalves, NunoFace morphing attack detection (MAD) is one of the most challenging tasks in the field of face recognition nowadays. In this work, we introduce a novel deep learning strategy for a single image face morphing detection, which implies the discrimination of morphed face images along with a sophisticated face recognition task in a complex classification scheme. It is directed onto learning the deep facial features,...
Probabilistic Approach for Road-Users Detection
Melotti, Gledson; Lu, Weihao; Conde, Pedro; Zhao, Dezong; Asvadi, Alireza; Gonçalves, Nuno; Premebida, CristianoObject detection in autonomous driving applications implies the detection and tracking of semantic objects that are commonly native to urban driving environments, as pedestrians and vehicles. One of the major challenges in state-of-the-art deep-learning based object detection are false positives which occur with overconfident scores. This is highly undesirable in autonomous driving and other critical robotic-pe...
EFFERVESCENT TABLETS AND HIGH BLOOD PRESSURE: WHAT IS THE EVIDENCE?
Alheiro, Vânia; Gonçalves, Nuno; Marinho, CelesteThe relationship between sodium intake and hypertension is well established, the WHO recommends a limit of 5g of daily salt consumption in the general population, which is equivalent to 2g of sodium. It is known that the main source of salt consumption is associated with diet, however, other forms of consumption are often neglected, as is the case of sodium present in drugs. Sodium is widely used in the formula...
Card3DFace—An Application to Enhance 3D Visual Validation in ID Cards and Trave...
Dihl, Leandro; Cruz, Leandro; Gonçalves, NunoThe identification of a person is a natural way to gain access to information or places. A face image is an essential element of visual validation. In this paper, we present the Card3DFace application, which captures a single-shot image of a person’s face. After reconstructing the 3D model of the head, the application generates several images from different perspectives, which, when printed on a card with a lay...
CodeFace: A Deep Learning Printer-Proof Steganography for Face Portraits
Shadmand, Farhad; Medvedev, Iurii; Gonçalves, NunoIdentity Documents (IDs) containing a facial portrait constitute a prominent form of personal identi cation. Photograph substitution in of cial documents (a genuine photo replaced by a non-genuine photo) or originally fraudulent documents with an arbitrary photograph are well known attacks, but unfortunately still ef cient ways of misleading the national authorities in in-person identi cation processes. Therefo...
Cancer cells’ metabolism dynamics in renal cell carcinoma patients’ outcome: in...
Morais, Mariana; Dias, Francisca; Nogueira, Inês; Leão, Anabela; Gonçalves, Nuno; Araújo, Luís; Granja, Sara Costa; Baltazar, Fátima; Teixeira, Ana L.The cancer cells’ metabolism is altered due to deregulation of key proteins, including glucose transporter 1 (GLUT-1), whose mRNA levels are influenced by microRNAs (miRNAs). Renal cell carcinoma (RCC) is the most common and lethal neoplasia in the adult kidney, mostly due to the lack of accurate diagnosis and follow-up biomarkers. Being a metabolic associated cancer, this study aimed to understand the hsa-miR-...
Gender differences in clinical features and outcomes of a Portuguese systemic s...
Freitas, Raquel; Martins, Patrícia; Dourado, Eduardo; Santiago, Tânia; Guimarães, Francisca; Fernandes, Bruno Miguel; Garcia, Salomé; Samões, BeatrizEvidence for the role of sex in the clinical manifestations of systemic sclerosis (SSc) patients is emerging. Some multicenter cohorts have shown that male SSc patients have more severe disease and worse survival. To assess the differences in clinical manifestations and survival in Portuguese SSc patients according to gender. Data from male and female adult SSc patients included in the Rheumatic Diseases Portug...