Publications by authors named "P Leitao"

To evaluate the ecosystem services of silvopastoral systems through grazing activities, an advanced Internet of Things (IoT) framework is introduced for capturing extensive data on the spatial dynamics of sheep and goat grazing. The methodology employed an innovative IoT system, integrating a Global Navigation Satellite System (GNSS) tracker and environmental sensors mounted on the animals to accurately monitor the extent, intensity, and frequency of grazing. The experimental results demonstrated the high performance and robustness of the IoT system, with minimal data loss and significant battery efficiency, validating its suitability for long-term field evaluations.

View Article and Find Full Text PDF
Article Synopsis
  • Volatile organic compounds (VOCs) show promise for early cancer detection, particularly lung cancer, using non-invasive methods that can be more comfortable than traditional techniques like biopsies and imaging.
  • Recent technological advancements have enabled the use of VOC detection through breath, urine, and skin samples, offering a potential alternative to painful or costly procedures.
  • The study utilizes artificial intelligence and machine learning to improve the accuracy of lung cancer detection by analyzing the overall profiles of VOCs, rather than focusing solely on specific compounds, highlighting the potential for AI in enhancing early cancer detection in clinical practice.
View Article and Find Full Text PDF

"Watch and wait" is becoming a common treatment option for patients with locally advanced rectal cancer (LARC) submitted to neoadjuvant treatment. However, currently, no clinical modality has an acceptable accuracy for predicting pathological complete response (pCR). The aim of this study was to assess the clinical utility of circulating tumor DNA (ctDNA) in predicting the response and prognosis in these patients.

View Article and Find Full Text PDF

Biodiversity monitoring is an almost inconceivable challenge at the scale of the entire Earth. The current (and soon to be flown) generation of spaceborne and airborne optical sensors (i.e.

View Article and Find Full Text PDF

The progressive loss of functional capacity due to aging is a serious problem that can compromise human locomotion capacity, requiring the help of an assistant and reducing independence. The NanoStim project aims to develop a system capable of performing treatment with electrostimulation at the patient's home, reducing the number of consultations. The knee angle is one of the essential attributes in this context, helping understand the patient's movement during the treatment session.

View Article and Find Full Text PDF