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Models for light propagation in the head: trends and implementation of Finite E...

Fernandes, Filipa Gracinda Silva; Silva, Filipe Samuel; Sousa, Nuno; Carvalho, Óscar Samuel Novais; Catarino, Susana Oliveira

The simulation of light propagation in the head tissues has become of interest due to its applicability in transcranial photobiomodulation (tPBM). In silico studies appear as an effective way to research tPBM dosimetry and understand the light reach in the head tissues, as well as potential issues regarding tissue heating. Nonetheless, these computer models are still very simple and come with several limitation...


Experimental and in silico models for studying light propagation in the head

Fernandes, Filipa Gracinda Silva; Silva, Filipe Samuel; Sousa, Nuno; Carvalho, Óscar Samuel Novais; Catarino, Susana Oliveira

Transcranial photobiomodulation (tPBM) is an alternative therapy to conventional approaches, with clinical studies that show promising results for the treatment of several neurological pathologies, such as stroke and dementia related conditions. Despite its potential, the optimal light parameters and dosimetry for effective tPBM therapy remain uncertain, with most literature on this topic highlighting the need ...


Walking and cycling friendliness as proxies to retrofit active transport infras...

Pais, Filipe; Sousa, Nuno; Jesus, Eduardo Natividade; Rodrigues, João Coutinho

Active transport modes, such as walking and cycling, have been promoted by scientific studies and policymakers due to congestion-reduction and health benefits, and low environmental impact. However, adequate infrastructure is necessary for citizens to exercise their choice for those modes. This article presents a case study on the active mode infrastructural condition of a city which, as many others, privileged...


Face-to-face interactions estimated using mobile phone data to support contact ...

Cumbane, Silvino; Gidófalvi, Gyözö; Cossa, Osvaldo; Madivadua Júnior, Afonso; Branco, Frederico; Sousa, Nuno

Understanding people’s face-to-face interactions is crucial for effective infectious disease management. Traditional contact tracing, often relying on interviews or smartphone applications, faces limitations such as incomplete recall, low adoption rates, and privacy concerns. This study proposes utilizing anonymized Call Detail Records (CDRs) as a substitute for in-person meetings. We assume that when two indiv...


Sentinel Lymph­‑Node Biopsy or Targeted Axillary Dissection in Node­‑Positive B...

Sousa, Nuno; Pinto, Catarina; Peleteiro, Barbara; Fougo, José

Introduction: Targeted axillary dissection (TAD) was designed for nodal staging in cN+ breast cancer (BC) patients submitted to neoadjuvant therapy (NAT). A recent study questioned the need to mark suspicious nodes pre-NAT. Methods: cT1-4 N1-2 BC patients scheduled for NAT were selected for retrospective appraisal. Patients were divided according with SLNB/TAD and ycN0/ycN+ status. Detection rate (DR), concorda...

Date: 2025   |   Origin: Revista Portuguesa de Cirurgia

Do people adapt to where they live?: a comparative analysis of perceived physic...

Medina Monteiro, João Pedro; Sousa, Nuno; Natividade-Jesus, Eduardo; Coutinho-Rodrigues, João; Oliveira, Leise Kelli; Santos, Patrícia da Silva

This article examines the question of whether people perceive their own urban environment more favourably than people from other urban environments, i.e., whether residents, in a sense, adapt to where they live. To analyse this question, a quantitative statistical model that uses geometric and land use elements was applied to a case study of Belo Horizonte, Brazil, to estimate the perception of physical pleasan...


The Digital Transition of Healthcare: A Pilot Experience

Amorim, Liliana; Moaris, Joana; Costa, Rui; Castanho, Teresa; Neves, Carolina; Sousa, Maria João; Sousa, Rita; Martins, Filipa; Domingues, Rui

The healthcare context is undergoing a significant transformation, facing a series of complex and unprecedented challenges. This transformation is triggered by accessibility constraints to healthcare services, increased expectations from patients and sing financial burdens. Rather than being seen as unsolvable obstacles, these challenges can be perceived as powerful stimuli, encouraging the search for innovativ...


Development and optical reflectance characterization of phantoms mimicking biol...

Fernandes, Filipa Gracinda Silva; Silva, Filipe Samuel; Sousa, Nuno; Catarino, Susana Oliveira; Carvalho, Óscar

[Excerto] The search for materials that accurately mimic the optical properties of biological tissues is essential, particularly for research in transcranial photobiomodulation, where it is necessary to comprehend how light propagates through the head tissues. Particularly, there is a lack of information in literature on the reflectance spectra of these materials, which is a property of relevance when determini...


Preferences and policies in the implementation of the 15-minute city: a prelimi...

Sousa, Nuno

The 15-minute city is an urban planning concept that advocates for the distribution of urban facilities so that they are, at most, 15 minutes away by foot or bicycle from their users’ residences. This concept has gained popularity among policymakers as a possible sustainability solution concerning urban mobility and vitality. However, its practical implementation faces the difficulty cities have in reorganizing...


Challenges ahead for sustainable cities: an urban form and transport system review

Medina Monteiro, João Pedro; Sousa, Nuno; Coutinho-Rodrigues, João; Natividade-Jesus, Eduardo

This article reviews the critical issues surrounding the development of sustainable urban environments, focusing on the impact of transport and urban form on energy consumption and greenhouse gas emissions. The aim is to provide an overview of the state-of-the-art on the subject and to unravel what directions the literature suggests for sustainable urban planning. Current research and practices are synthesized,...


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