Browsing by Author "Alves, C."
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- Circular economy using waste from different industries in leather retainningPublication . Alves, C.; Silva, V.F.; Crispim, Alfredo; Almeida, A.; Pinto, G.; Gaião, J.; Sousa, N.; Duarte, J.A circular economy is based on an economy that in principle, moves away from the accelerated model of consumption and disposal. Thus, the flow associated with the product, instead of being translated by a straight line, is now regarded as a circle or cycle. The leather manufacturing applies several physical and chemical treatments in different stages to transform the skin into leather. The pulp and paper industry generate several byproducts such as tannins and lignins. The sulfited lignins are a particular type of black liquor and could be used as dispersing, pre-tanning and retanning agents . During the chestnut freezing process, as consequence of the quality control, a significant quantity of chestnut fruit is rejected and not accepted by the consumer. Due to its high starch content, the chestnut fruit reject is used to produce chestnut flour which can be used as a filler retanning agent for leather. From the biodiesel process results a byproduct, which represents 10 % wt of the overall production, the crude glycerol. The hygroscopic effect of glycerol and its emulsifying and lubricant effect can be enhanced for the leather fatliquoring.
- Feasibility of a mobile app to improve inhaler adherence in real‐world patients with asthma: A multicentre observational study in Portugal and SpainPublication . Jácome, Cristina; Rute, Almeida; Amaral, Rita; Pereira, Ana Margarida; Vidal, Carmen; Freire, Sara Lopéz; Mendez Brea, Paula; Antolín- Amerigo, Dario; De La Hoz Caballer, Belen; Barra Castro, Alicia; González de Olano, David; Todo-Bom, Ana; Azevedo, João; Pinto, Paula Leiria; Neuparth, Nuno; Todo-Bom, Filipa; Costa, A.; Loureiro, Cláudia Chaves; Maia Santos, L.; Arrobas, Ana Maria; Valério, M.; Cardoso, João; Emiliano, Madalena; Gerardo, Rita; Cidrais Rodrigues, J. C.; Oliveira, G.; Carvalho, J.; Mendes, Ana; Lozoya, Carlos; Santos, Natacha; Menezes, F.; Gomes, Ricardo; Câmara, R.; Rodrigues Alves, Rodrigo; Moreira, Ana Sofia; Bordalo, Diana; Alves, C.; Coelho, D.; Ferreira, J. A.; Lopes, Cristina; Vasconcelos, M. J.; Teixeira, M. F.; Taborda-Barata, L.; Cálix, M. J.; Alves, A.; Almeida Fonseca, J.InspirerMundi app aims to transform adherence into a positive experience through gamification and social support, while allowing objective monitoring of inhaler adherence. This study assessed the feasibility of the app in adolescents and adults with persistent asthma.
- Footwear leather waste treatment: Energetic alternative ways against landfill disposalPublication . Alves, C.; Marques, D.; Crispim, A.(Introduction) Leather finished wastes resulting from the footwear manufacturing process are generated. Most of this waste is contaminated with chromium. Energetic valorization is one alternative to landfilling that must be evaluated, taking into account the current importance of energy. In this way, three technologies can be compared to evaluate this alternative: incineration, gasification, and pyrolysis. In recent years, a lot of research work has been done to evaluate the application of these technologies to leather solid waste.
- Validation of app and phone versions of the Control of Allergic Rhinitis and Asthma Test (CARAT)Publication . Jácome, C.; Pereira, R.; Almeida, R.; Amaral, Rita; Correia, M. A.; Mendes, S.; Vieira-Marques, P.; Ferreira, J. A.; Lopes, I.; Gomes, J.; Vidal, C.; López Freire, S.; Méndez Brea, P.; Arrobas, A.; Valério, M.; Chaves Loureiro, C.; Santos, L. M.; Couto, M.; Araujo, L.; Todo Bom, A.; Azevedo, J. P.; Cardoso, J.; Emiliano, M.; Gerardo, R.; Lozoya, C.; Pinto, P. L.; Neves, A. Castro; Pinto, N.; Palhinha, A.; Teixeira, F.; Ferreira-Magalhães, M.; Alves, C.; Coelho, D.; Santos, N.; Menezes, F.; Gomes, R.; Rodrigues, J. C. Cidrais; Oliveira, G.; Carvalho, J.; Alves, R. Rodrigues; Moreira, A. S.; Costa, A.; Abreu, C.; Silva, R.; Morête, A.; Falcão, H.; Marques, M. L.; Câmara, R.; Cálix, M. J.; Bordalo, D.; Silva, D.; Vasconcelos, M. J.; Fernandes, R. M.; Ferreira, R.; Freitas, P.; Lopes, F.; Fonseca, J. AlmeidaAssessment of asthma control at every opportunity is recommended. Control of Allergic Rhinitis and Asthma Test (CARAT) is a patient reported outcome measure commonly used to assess asthma control in clinical practice.It includes ten questions answered in a 4 point Like rt scale that address upper and lower airway symptoms, sleep interference, limitation of activities , and the need to increase medication over a 4 week period. CARAT is frequently administered on paper during medical visits, but digital versions through website and mobile apps are available.
- Wet-blue retanning process optimization for reducing water and energy consumption, and environmental impactPublication . Filipe, T.; Alves, C.; Freitas, T.; Crispim, A.; Dias, S.The process of transforming animal skin into leather comprises a range of chemical processes and mechanical operations that can be divided in four sectors such as beamhouse, tanning, dyeing, and finishing. In the dyeing sector, the chemical process (normally called retanning or dyeing process) has four main steps: neutralization, retanning, dyeing, and fatliquoring. A very important part of research in field of tanning industry is focused on develop and adapt alternative and clean processes, contributing to the sustainability of the planet. These new processes and methods enable an improvement of the quality of the leathers obtained while achieving a reduction in the energy and water consumption, as well as pollution generated.