12 documents found, page 1 of 2
5G Security features, vulnerabilities, threats, and data protection in IoT and ...
Sousa, Alexandre; Reis, Manuel J. C. S.The evolution of wireless communications, from the first to the fifth generation, has driven Internet of Things (IoT) advancements. IoT is transforming sectors like agriculture, healthcare, and transportation, but also presents challenges like spectrum bandwidth demand, speed requirements, and security issues. IoT environments, with embedded sensors and actuators, connect to other devices to transmit and receiv...
Retroperitoneal liposarcomas surgical treatment: retrospective analysis of prog...
Sousa, Alexandre; Martins, Pedro; Afonso, Mariana; Conde, Sofia; Ferreira, Ana; Soares, Marta; Dinis, José; Videira, Flávio; Guimarães dos Santos, JoséIntroduction: Retroperitoneal soft tissue sarcomas have a wide range of histologic entities but they are frequently studied as a single disease. Being liposarcomas the most frequent histologic type, we’ve carried a retrospective analysis from a cohort of patients treated at a referral center to assess prognostic factors associated with demographic and therapeutic characteristics.Methods: A retrospective analysi...
Do we still need axillary staging in the context of mastectomy after at least o...
Ribeiro, Cátia; Antunes, Pedro; Mesquita, Ana; Martins, Pedro; Peyriteo, Mariana; Sousa, Alexandre; Coimbra, Nuno; Leal, ConceiçãoGoals: Sentinel lymph node biopsy (SLNB) is indicated when a mastectomy is performed by Ductal Carcinoma In Situ (DCIS). When mastectomy is performed after one or more attempts of breast conservative surgery (BCS), the need to perform SLNBis questionable. The goal of this study was to determine the histological upgrade rate and SLNB results in this specific group of patients.Methods: Retrospective study of a ca...
Relações biográficas do patrimônio cultural no modelo EDM: uma proposta de inte...
Sousa, Alexandre; Ribeiro, CláudioA difusão de objetos digitais do patrimônio cultural na internet tem desafiado as instituições, que lidam com documentos identificados dentre dessa concepção, a mensurar as melhores formas de organizar e disseminar estas informações na web. As tecnologias da Web Semântica e os princípios Linked Data têm sido apontados como facilitadores para essa ação, propiciando formas de interligação temática. Assim, a oport...
THE IMPACT OF LIVER SURGERY AND MARGIN STATUS ON SURVIVAL ACCORDING TO KRAS MUT...
Peyroteo, Mariana; Canotilho, Rita; Sousa, Alexandre; Sousa, Fernanda; Fernandes, Manuel; Gonçalves, Belarmino; Videira, José Flávio; Fragoso, MariaIntroduction: The impact of kirsten rat sarcoma viral oncogene homolog (KRAS) mutational status on surgery planning for colorectal liver metastases (CRLM) remains unknown. The aim of the study was to evaluate the impact of type of liver surgery and margin status in recurrence free survival (RFS) of patients with CRLM, according to KRAS mutational status. Materials and methods: Retrospective review of all patien...
The interplay between monetary and fiscal policies in the EU
Afonso, António; Sousa, AlexandreWe study the interactions between monetary and fiscal policies in the EU countries, for the period 1995-2019. Our results show notably that: i) the inflation rate has a relevant impact over the central banks’ decision making; ii) the cyclically adjusted primary balance reacts positively to increases in the level of government debt; iii) monetary policy reaction functions do not seem to take into consideration t...
Metrics and Altmetrics: an exploratory study of a possible correlation between ...
Pacheco, André; Sousa, Alexandre; Yanai, Angela; Lopes, Susana; Machado, LuísCitations count in reference databases has been consolidated as the traditional method of assessing the impact of a scientific work. However, the recent developments around the diversity of web communication channels triggered the scientific community to start questioning the legitimacy of these metrics as the sole indicators of impact. In this context, alternative metrics based on web indicators have begun to ...
A Hitchhiker's guide to functional magnetic resonance imaging
Soares, José Miguel Montenegro; Magalhães, Ricardo José Silva; Moreira, Pedro Miguel Silva; Sousa, Alexandre; Ganz, Edward; Sampaio, AdrianaFunctional Magnetic Resonance Imaging (fMRI) studies have become increasingly popular both with clinicians and researchers as they are capable of providing unique insights into brain functions. However, multiple technical considerations (ranging from specifics of paradigm design to imaging artifacts, complex protocol definition, and multitude of processing and methods of analysis, as well as intrinsic methodolo...
Villes littéraires et villes numériques: la Página Literária de Porto
Vieira, Célia; Rio Novo, Isabel; Sousa, Alexandre; Cruz, TiagoÉtant donné que, par sa tradition et par sa dynamique, la ville de Porto peut accueillir un projet fondé sur l'exploitation de ses potentialités en tant que ville littéraire et étant donné, par ailleurs, que la mise en place de systèmes d'information massifs, dans le cadre des programmes de dynamisation de villes numériques promus par l'Union Européenne, permettant l'application de puissants outils de diffusion...
SIGEMO: sistema de gestão de moldes
Marques, Rui; Sousa, Tiago; Duarte, A. Manuel de Oliveira; Sousa, Alexandre; Paulo, AlexandreThis paper presents the methods used for the development of a project that intends to contribute for the implementation of a logistic system of identification, management and flow control of materials (raw materials, products in assembly stage, tools and support machinery) for application in industrial environments. This work was the final project to obtain a degree in Electronics and Telecommunications Enginee...