Universidade Politécnica de Lisboa

Analytical Evaluation of Simulated Kidney-Disease Profiles: Comparison of a Portable Near-Infrared Spectrophotometer with a Benchtop FT-NIR

Chronic kidney disease (CKD) is commonly assessed using blood biomarkers such as creatinine, urea and albumin. This study compared a portable six-channel near-infrared (NIR) analyzer (miniNIR; 1300–2100 nm) with a benchtop Fourier-transform near-infrared (FT-NIR) instrument for t...

Two-Stage Combustion of Ammonia/Hydrogen Blends: An Experimental Approach to Low-Carbon Fuel Utilisation

This study presents an experimental investigation of a laboratory-scale two-stage RQL-based combustor burning NH3/H2 fuel blends at a thermal input of 8.0–8.5 kW and atmospheric pressure using fuels containing 70–100% ammonia by volume in the first stage and 80–100% in two-stage...

ADAM17 pathway promotes canine mammary tumor cell migration

Abstract Background ADAM17, also known as tumor necrosis factor-converting enzyme (TACE), is a pleiotropic protease that contributes to inflammation and cancer progression by activating epidermal growth factor receptor (EGFR) signaling and IL-6 trans-signaling, among other pathwa...

The Contribution of DAS to the Routine Monitoring of Seismicity in Oceanic Islands: The Case for Faial (Azores)

Distributed acoustic sensing (DAS) deployed on submarine telecom cables is bound to revolutionize the earthquake monitoring routine currently performed by seismic network operators, particularly in domains where most seismic activity originates offshore. In this work, we analyze...

Volatile essential oils as a non-antibiotic strategy against bacteria causing urinary tract infections in companion animals

Urinary tract infections (UTI) in companion animals are increasingly associated with multidrug-resistant (MDR) bacteria, highlighting the need to explore alternative antimicrobial approaches. This study aimed to evaluate the in vitro antimicrobial activity of three essential oils...

Mathematical and computational modeling of head and neck cancer for personalized therapy

Abstract We present a coupled mathematical model for tumor progression and treatment-induced tissue remodeling in head and neck cancer. The framework links a reaction–diffusion equation for tumor cell density with finite-strain growth mechanics through a multiplicative decomposit...

Generational changes in lung function in adults from several world regions: results from the Burden of Obstructive Lung Disease study

This study estimated birth cohort effects on lung function using BOLD (Burden of Obstructive Lung Disease) data from 28 569 adults born between 1902 and 1976 across 41 sites in 34 countries. Forced vital capacity (FVC), forced expiratory volume in 1 s (FEV 1 ) and the FEV 1 /FVC...

Synergy of Phenylsilsesquioxane and Pyridylpyrazolate Ligands in Hexacopper Cages: Approach to Catalytic Toluene Oxidation

Abstract Cage-like Cu6M2 (M = Li or Na) complexes, containing two pairs of ligands, Si5-cyclic silsesquioxanes and pyrazolylpyridines, have been obtained. Two central (Cu···Cu···Cu···M) tetramers are sandwiched by Si ligands, while pyrazolylpyridines behave simultaneously in chel...

Random‐key optimization for 2D irregular packing with reusable area evaluation

Abstract The diverse constraints of industrial applications lead to variants of two‐dimensional (2D) irregular packing problems that require tailored solution methods. This paper addresses a real‐world industrial challenge by proposing a new problem definition, the maximum reusab...

From Accounting Systems to Accounting Behavior

Since Gray’s extension of Hofstede’s cultural dimensions into the accounting domain, culture has become one of the most influential explanations for international differences in financial reporting. However, the widespread adoption of International Financial Reporting Standards (...

Salience Network Dynamics Across Spontaneous Attacks, Interictal Rest and Interictal Pain Imagery in Menstrually Related Migraine

The persistent sensitivity to sensory and painful stimuli of people with migraine has been associated with disruption of the salience network (SN). Although migraine is characterized by severe head pain attacks, brain changes have been observed in people with migraine in between...

Understanding indigenous migration: A systematic review and dynamic model

This study examines Indigenous migration as a complex phenomenon rooted in the interplay between historical legacies, market pressures, and regulatory frameworks, rather than as a series of isolated individual choices. Following the SPAR-4-SLR protocol and reporting in accordance...

CS-SHRED: enhancing SHRED for robust recovery of spatiotemporal dynamics

Abstract We present CS-SHRED, a novel deep learning architecture that integrates compressed sensing (CS) into a shallow recurrent decoder (SHRED) to reconstruct spatiotemporal dynamics from incomplete, compressed or corrupted data. Our approach introduces two key innovations. Fir...

Reconfiguring University Missions in the Knowledge Society: The Case of Portuguese Universities in European Alliances

ABSTRACT This paper examines how European Knowledge Society policy scripts, amplified by the European Universities initiative, are appropriated in the strategic plans of Portuguese public universities. Focusing on nine universities participating in European Universities Alliances...

Application of the Hirshfeld Atom Refinement to Determine the Spin State of the Novel Fe(III) Schiff Base Complex

The novel complex [FeIII(HL)(L)]·2dmf (1) was successfully synthesized by reacting iron chloride with dimethylformamide solution of the Schiff base ligand (H2L). The ligand was prepared in situ through the condensation of 5-bromo-salicylaldehyde and benzhydrazide. The compound 1...

Mixed-Variable Optimisation as a Metric Product Space: Transient Categorical Geometry and a Hierarchy of Local Optimality

v2, August 2026: substantially revised version — restructured into eight sections, renamed optimality hierarchy (single-ordering / visited-orderings / all-orderings), corrected algorithmic section, and a new controlled computational experiment. A version of this manuscript is und...

Mixed-Variable Optimisation as a Metric Product Space: Transient Categorical Geometry and a Hierarchy of Local Optimality

v2, August 2026: substantially revised version — restructured into eight sections, renamed optimality hierarchy (single-ordering / visited-orderings / all-orderings), corrected algorithmic section, and a new controlled computational experiment. A version of this manuscript is und...