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In this paper, we consider a tumor growth mathematical model that includes an immune system and drug therapies. Immuno- and chemodrug administration as well as periodic administration of radiation are integrated in the model. We have set an optimal control (OC) problem relative to&...
In Portugal, the individual intervention plan (IIP) is an essential component of early intervention (EI) services for families with children aged 0–6 who have special needs or are at risk. In this paper, we aim to analyse: (a) the benefits of the IIP for fami...
Estudos petrológicos de aplito-pegmatitos Variscos, de tipo LCT, intrusivos em terrenos Silúricos do NW de Portugal, mostraram que o intercrescimento de espodumena + quartzo, em proporção modal 1:2, é persistente em dispositivos texturais circunscritos que podem ser interpretados como agre...
Weathering involves important processes that alter the original structure, texture and chemical components of rocks and minerals. Bulk changes produced by weathering in granitic rocks have been studied by several methods, including chemical weathering indices. They are based on the assumption...
The present study focuses on hydrogeochemical data from a Hercynian granitic mass where a new underground hydraulic circuit for a hydropower plant is being developed between two reservoirs and near another existing and operating underground hydraulic circuit. The main goal of this work&...