C. A. Gonçalves

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This work presents a study on the influence of the aqueous environment on the surface EMG (sEMG) signal recorded in bipolar montage from the abductor pollicis brevis muscle, when only the forearm is immersed in water. Ten men, 30.1+/-4.0 (mean +/- SD) years old, performed ten 2-s 40% MVC isometric contractions of the abductor pollicis brevis muscle in two(More)
Elastic fibres play a crucial function during the process of lung alveolisation. During the perinatal period, any changes in the elastogenic process during foetal development may result in permanent lifetime defects. In pre-natal life, well-developed pulmonary elastic fibres should favor the pre-natal maturation of the lung and an enhanced alveolisation,(More)
In this work, we evaluate the lung retinoids content to study the possible difference between male and female mice during prenatal development and to comprehend if the vitamin A metabolism is similar in both genders. The study occurred between developmental days E15 and E19, and the retinol and retinyl palmitate lung contents were determined by HPLC(More)
The inconstant environment in which animals lives and the variation of their metabolic states determined the gas exchangers system that must be able to operate efficiently across a spectrum of conditions that range from resting to exercise and even under hypoxia. The primordial respiratory organs that evolved for water breathing were the gills, evaginated(More)
Immunoaffinity columns (IACs) are a well-established tool in the determination of regulated mycotoxins in food and feed commodities. However, they also have the potential to become attractive pre-concentration and clean-up materials for the determination of masked (also called modified) mycotoxins, which have been recognised as important contributors to the(More)
3 Resumo-A doença de Alzheimer é considerada umas das maiores causas de demência. A técnica de espectroscopia Raman está sendo utilizada na atualidade para detectar as possíveis alterações nos tecidos que identifiquem a doença de Alzheimer, devido à capacidade de diferenciar elementos bioquímicos de maneira rápida e sem destruição do tecido. Este trabalho(More)
Elastic fibres play an important role in the pulmonary development process. The overall goal of this work was to quantify elastin in chicken lungs, using domestic fowl (Gallus gallus) as an experimental model, from the 14 th day of hatching until the 42 nd after hatchling. As analytical methodologies we used high-performance liquid chromatography (HPLC) and(More)
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