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Percorrer por autor "Barros, Mariana"

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  • A digital communication system for occupational safety and health: requirements identification and prototype
    Publication . Ferreira, Joana; Barros, Mariana; Constantino, Gonçalo; Cavadas, Rodrigo; Rebelo, José; Oliveira, Bruno; Rodrigues, Matilde
    Shifting the communication process in the Occupational Safety and Health (OSH) field to digital can bring advantages to risk management. A digital communication system can help ensure that all workers find it easier to report hazards, accidents, and near misses. Additionally, it can make possible access to several prevention information. Since companies typically lack this type of solution, this work aimed to identify the requirements of an OSH communication system and propose a prototype. To this end, a company in the construction and maintenance sector was used as a case study. Information was collected through visits to a construction site, interviews with the workers and a focus group session. The results showed the company's interest in modernizing communication methods and dematerializing the accidents and near misses reporting. The system can be used to improve information management and maintenance activities. As a result, a prototype for a digital communication system was proposed, contributing to simplifying processes for all end users. However, it must be safeguarded, that the prototype describes preliminary results for the system to be developed. Further studies are ongoing to obtain the final solution.
    2024Capítulo de livro Acesso restrito Ver mais
  • Optimizing the management of thyroid specimens to efficiently generate whole slide images for diagnosis
    Publication . Eloy, Catarina; Vale, João; Barros, Mariana; Oliveira, Diana; Mesquita, Morgana; Curado, Mónica; Pinto, João; Polónia, António
    Transition from optical to digital observation requires an additional procedure in the pathology laboratory, the scanning of glass slides, leading to increased time and digital archive consumption. Thyroid surgical samples often carry the need to collect several tissue fragments that generate many slides to be scanned. This study evaluated the impact of using different inking colours for the surgical margin, section thickness, and glass slide type, in the consumption of time and archive. The series comprehended 40 nodules from 30 patients, including 34 benign nodules in follicular nodular disease, 1 NIFTP, and 5 papillary carcinomas. In 12 nodules, the dominant pattern was microfollicular/solid and in 28 it was macrofollicular. Scanning times/mm2 were longer in red-inked fragments in comparison to green (p=0.04) and black ones (p=0.024), and in blue-inked in comparison to green ones (p=0.043). File sizes/mm2 were larger in red-inked fragments in comparison to green (p=0.008) and black ones (p=0.002). The dominant pattern microfollicular/solid was associated with bigger file size/ mm2 in comparison with the macrofollicular one (p
    2024Artigo de investigação Acesso aberto Ver mais