User profiles for Sofia O. Lopes

Sofia Lopes

CFIS, Systec, Universidade do Minho
Verified email at math.uminho.pt
Cited by 300

Optimal control applied to an irrigation planning problem

SO Lopes, FACC Fontes, RMS Pereira… - Mathematical …, 2016 - Wiley Online Library
We propose a mathematical model to study the water usage for the irrigation of given farmland
to guarantee that the field crop is kept in a good state of preservation. This problem is …

[PDF][PDF] On constraint qualifications for nondegenerate necessary conditions of optimality applied to optimal control problems

SO Lopes, F Fontes, MR de Pinho - Discrete and Continuous …, 2011 - paginas.fe.up.pt
We address necessary conditions of optimality (NCO), in the form of a maximum principle,
for optimal control problems with state constraints. In particular, we are interested in the NCO …

Tau protein is essential for stress-induced brain pathology

S Lopes, J Vaz-Silva, V Pinto, C Dalla… - Proceedings of the …, 2016 - National Acad Sciences
Exposure to chronic stress is frequently accompanied by cognitive and affective disorders in
association with neurostructural adaptations. Chronic stress was previously shown to trigger …

A new stabilised scheme for the Richards' equation with evapotranspiration

…, RMS Pereira, S Clain, N Araújo, SO Lopes - Groundwater for …, 2022 - Elsevier
A new second-order stabilised numerical method for the Richards' equation with source term
is proposed to solve the water infiltration in porous soil. This new method to solve Richard's …

[HTML][HTML] Normal forms of necessary conditions for dynamic optimization problems with pathwise inequality constraints

FACC Fontes, SO Lopes - Journal of Mathematical Analysis and …, 2013 - Elsevier
There has been a longstanding interest in deriving conditions under which dynamic
optimization problems are normal, that is, the necessary conditions of optimality (NCO) can be …

An integral-type constraint qualification to guarantee nondegeneracy of the maximum principle for optimal control problems with state constraints

SO Lopes, FACC Fontes, MDR De Pinho - Systems & Control Letters, 2013 - Elsevier
For optimal control problems involving ordinary differential equations and functional
inequality state constraints, the maximum principle may degenerate, producing no useful …

SAR Study of 4,8-Disubstituted Pyrimido[5,4-d]pyrimidines Exhibiting Antitrypanosomal and Antileishmanial Activity

A Lopes, S Teixeira, N Santarém, A Greco… - ACS Medicinal …, 2024 - ACS Publications
A set of new derivatives of 4,8-disubstituted pyrimido[5,4-d]pyrimidines were efficiently
synthesized and in vitro evaluated against Trypanosoma brucei and Leishmania infantum …

Absence of Tau triggers age‐dependent sciatic nerve morphofunctional deficits and motor impairment

S Lopes, A Lopes, V Pinto, MR Guimarães… - Aging cell, 2016 - Wiley Online Library
Absence of Tau triggers age‐dependent sciatic nerve morphofunctional deficits and motor
impairment - Lopes - 2016 - Aging Cell - Wiley Online Library … Sofia LopesSofia Lopes

Optimal control applied to an irrigation planning problem: a real case study in Portugal

SO Lopes, RMS Pereira, PA Pereira… - International …, 2019 - inderscienceonline.com
In this paper, a daily plan model to the irrigation of a crop field using optimal control was
developed. This daily plan model have in consideration: weather data (temperatures, rainfall, …

Mediterranean diet adherence and its relationship to metabolic markers and body composition in portuguese university students

S Lopes, T Fontes, R Menezes, LM Rodrigues… - Nutrients, 2023 - mdpi.com
Background: Transitioning to university involves several changes, which might affect dietary
habits. The present study aimed to assess the potential relationships involving adherence to …