131 documents found, page 1 of 14
The Effect of Handlebar Height and Bicycle Frame Length on Muscular Activity du...
Conceição, Ana; Milheiro, Vítor; Parraca, José A.; Rocha, Fernando; Espada, Mário C.; Santos, Fernando J.; Louro, HugoThe cycling literature is filled with reports of electromyography (EMG) analyses for a better understanding of muscle function during cycling. This research is not just limited to performance, as the cyclist’s goal may be rehabilitation, recreation, or competition, so a bicycle that meets the rider’s needs is essential for a more efficient muscular activity. Therefore, the purpose of this study was to understan...
Stream sediments geochemistry in the Valongo anticline, northern Portugal: arse...
Carvalho, Paula; Albuquerque, Teresa; Chambel, Luís; Silva, Manuela; Rocha, FernandoABSTRACT: The Valongo anticline is known for the occurrence of several Sb-Au and As-Au mineral deposits, many of which have been exploited since Roman times. The Sb-Au and As-Au deposits occur in brecciated quartz veins, predominantly trending NE-SW, NNW-SSE, and ENE-WSW, cutting Cambrian to Carboniferous formations. An 801-stream sediment campaign was conducted in this area. Factorial kriging was applied as an...
Characterization of saline waters from Ria de Aveiro (Portugal) for potential u...
Almeida, Lara; Rocha, Fernando; Candeias, CarlaABSTRACT: This study aims to characterize the properties of the saline waters from an old saltpan at the Ria de Aveiro, and assess its potential use in skin treatments. Eight water samples were collected from two different areas of an open-air salt SPA, during four different climatic seasons between 2020 and 2021. Physichochemical parameters of the waters revealed an alkaline pH and high electrical conductivity...
Investigating the hydrothermal activity at Fogo volcano (Cape Verde) using geoc...
Candeias, Carla; Rocha, Fernando; Dumont, Stéphanie; Maineult, Alexis; Ramalho, Ricardo; Madeira, José; Antunes, JoãoABSTRACT: Characterizing hydrothermal systems at volcanoes is particularly important as they play a crucial role in controlling eruptive dynamics. On the long term, hydrothermal systems participate in the geochemical alteration of both rocks and soils, through hydrolysis, dissolution, mineral precipitation, and secondary mineralization contributing in the gradual destabilization of volcanic structures. Fogo vol...
Geosciences research mapping for Portugal in the year 2023: standing and future...
Tavares, Alexandre; Rocha, Fernando; Dinis, Pedro; Pereira, AlcidesABSTRACT: This study carries out a mapping of research topics in geosciences within the context of Portugal for the year 2023. The data for this analysis are sourced from 11 Research Centres and 4 other entities whose missions include research as their main objective. A bibliometric analysis is performed using the SCOPUS database for a sample of 103 researchers, with data collected in May 2023. A focus group is...
Electromyographic analysis of deadlift for construction workers
Machado, Renato; Branco, Marco; Conceição, Ana; Rocha, Fernando; Louro, HugoWorking in construction is physically demanding. The tasks inherent to this professional occupation physically wear workers down, leaving them at a high risk of injury, mainly in the shoulder and knee joints and the lumbar region (Chung et al., 2019; Umer et al., 2018). Those tasks require a great balance capacity and strength of the postural muscles, with the Construction Workers (CW) supporting heavy equipmen...
Characterization of percutaneous absorption of calcium, magnesium, and potentia...
Bastos, Carla Marina; Rocha, Fernando; Patinha, Carla; Marinho Reis, A. PaulaPelotherapy treatments in thermal spas, which utilize peloids composed of clay minerals mixed with saltwater or mineral-medicinal water, can have various effects on spa users, ranging from therapeutic to potential adverse reactions. Despite the widespread use of peloids, comprehensive information on the penetration and permeation of essential and potentially toxic elements into deeper layers of the skin during ...
Insulin nucleation kinetics in an oscillatory flow-based platform: Protein crys...
Ferreira, Joan; Araújo, Sofia; Ferreira, António; Teixeira, J. A.; Campos, João Moreira de; Rocha, Fernando; Castro, Filipa Juliana FernandesInsulin is a human therapeutic protein that has been used to treat diabetes for almost a century. Its crystallization has been of significant interest since the protein is commonly administered by subcutaneous injections of crystalline formulations, where crystal size distribution (CSD) has a critical role in product release and injectability. Herein, insulin crystallization was investigated in a unique platfor...
Quando "os golos dispensam balizas": uma análise às estratégias de comunicação ...
Rocha, Fernando; Morais, RicardoThe aim of this study is to verify the social responsibility strategies adopted by the Football Foundation, an initiative created by Liga Portugal. It seeks to investigate the main practices of corporate social responsibility, analyzing how these can be applied in the sporting sphere and, in particular, in the world of soccer. The aim is to evaluate the type of posts that have been made by the Foundation on Fac...
Tackling current production of HAp and HAp-driven biomaterials
Veiga, Anabela; Madureira, Sara; Costa, João B.; Castro, Filipa; Rocha, Fernando; Oliveira, Ana L.Hydroxyapatite (HAp)-based biomaterials are well-established for biomedical applications due to their extensive research work and clinical track record. Recent efforts have been focusing on the development of enhanced HAp systems, through combination with other materials, growth factors, and cells. However, manufacturing reproducible materials and process scalability are still major challenges. 3D printing emer...