Validação da The Locke Speech Perception: Speech Production Task: European Portuguese Version: 4A6M – 5A11M

Enquadramento: A perceção auditiva é responsável por receber e compreender os sons e as palavras. É recomendado que a avaliação da discriminação auditiva envolva estímulos com traços distintivos que se revelam problemáticos ao nível da produção. Contudo, não foram encontrados estudos de validação da The Locke Speech Perception – Speech Production Task para o Português Europeu (PE). Objetivos: Desenvolver a versão digital da prova The Locke Speech Perception – Speech Production Task e validar a versão portuguesa da prova em crianças entre os 4 anos e 6 meses e os 5 anos e 11 meses, assim como caracterizar o desenvolvimento da perceção auditiva em crianças falantes do PE nestas faixas etárias. Métodos: O estudo é do tipo transversal e descritivo-correlacional. O estudo envolveu 60 crianças de quatro estabelecimentos de ensino particular, no distrito de Lisboa. Os dados foram obtidos com rcurso a um questionário sociodemográfico que permitiu garantir os critérios de inclusão e exclusão e à prova The Locke Speech Perception – Speech Production Task. A amostra foi dividida em dois grupos de estudo, 30 crianças responderam a 8 sub-provas e as restantes responderam a 7 sub-provas. Resultados: A amostra foi constituída por 31 crianças do sexo feminino e 29 crianças do sexo masculino, sendo que 21 crianças pertencia à faixa etária dos 4A6M-4A11M, 21 crianças à faixa etária dos 5A0M- 5A6M e na faixa etária dos 5A6M-5A11M participaram 18 crianças. Os resultados mostraram erros apenas nas sub-provas com os contrastes [ʃ/s], [z/ʒ], [l/w] e [ʎ/j]. O teste Kruskal-Wallis mostrou que não existem diferenças significativas entre as faixas etárias nestas sub-provas. Após analisar a frequência total dos erros quando ocorridos 3 ou mais vezes num total de 6 estímulos para as idades categorizadas, as crianças apresentaram erros na perceção auditiva apenas nos contrastes [z/ʒ] e [ʎ/j]. Conclusão: A versão portuguesa da prova The Locke Speech Perception – Speech Production Task validada será importante na avaliação terapêutica, tratando-se de uma ferramenta útil para avaliação da perceção auditiva.Mestrado em Terapia da Fal

Implementação de sistema de rastreabilidade em empresa de base tecnológica com ênfase em tecnologias da indústria 4.0

With the advent of Industry 4.0 and the approach of a connected production system using Industry 4.0 technologies, the adoption of traceability systems becomes an essential application of this new industrial era. The work takes into account the need for small and medium-sized companies to improve the processes carried out, through the use of technologies mentioned in the pillars of Industry 4.0. In this context, the work proposes to develop a traceability system applied to the production chain of stainless-steel capacitor tanks with the reading of the bar code in stainless steel AISI 304 and stainless steel AISI 409 of one of the units of a Brazilian company located in Itajubá, south of Minas Gerais. Initially, a systematic literature review conducted based on the PRISMA protocol was adopted, covering the Scopus and Web of Science databases, which allowed the selection of the most relevant articles on this topic. The methodology used was Action Research in which it was possible to develop and implement the proposed traceability system called RAST 4.0. Through a pilot batch, it was possible to collect data and analyze them through the stages of the PDCA cycle; thus, an Action Plan was developed with the purpose of solving the flaws found. Continuing with the action-research stages, with the application of the Action Plan, the company achieved improvements through simple actions, thus generating the 2nd Pilot Batch, which was monitored and tested within the process, resulting in time taken for each of tasks and maintaining traceability from the beginning to the shipment of the capacitor tank to the customer, through internal traceability.Com o advento da Indústria 4.0 e a abordagem de um sistema de produção conectada ao uso de tecnologias da Indústria 4.0, a adoção de sistemas de rastreabilidade vem ser uma aplicação essencial dessa nova era industrial. O trabalho leva em consideração a necessidade de empresas de pequeno e médio portes melhorarem os processos realizados, através do uso de tecnologias que constituem os pilares da Indústria 4.0. No contexto, o trabalho propõe desenvolver um sistema de rastreabilidade aplicado à cadeia de produção de tanque de capacitores de aço inox através da leitura do código de barras no aço inoxidável AISI 304 ou aço inoxidável AISI 409 de uma das unidades de uma empresa brasileira localizada em Itajubá, Sul de Minas Gerais. Inicialmente, adotou-se uma revisão sistemática de literatura conduzida com base no protocolo PRISMA, abrangendo as bases de dados Scopus e Web of Science, que permitiu a seleção dos artigos mais relevantes acerca dessa temática. O método de pesquisa utilizado foi a Pesquisa-ação na qual foi possível desenvolver e implantar o Sistema de rastreabilidade proposto chamado de RAST 4.0. Por meio de um lote piloto, foi possível coletar os dados e analisá-los através das etapas do ciclo PDCA; desse modo, um Plano de Ação foi desenvolvido com o propósito de solucionar as falhas encontradas. Dando prosseguimento nas etapas da pesquisa-ação, com a aplicação do Plano de Ação, a empresa conquistou melhorias através de ações simples. Foi gerado o 2º Lote Piloto, que foi acompanhado e testado dentro do processo, resultando em tomadas de tempo de cada uma das tarefas e mantendo a rastreabilidade desde o início até o envio do tanque de capacitor para o cliente, através da Rastreabilidade interna

Association between temporomandibular disorders, postural behavior and violin/viola playing

Poster presented at the 96th General Session & Exhibition of the IADR (IADR Pan European Regional Congress). 25-28 July 2018, LondonN/

A prevalência de disfunção temporomandibular em violinistas e violetistas

Dissertação para obtenção do grau de Mestre no Instituto Superior de Ciências da Saúde Egas MonizObjectivo: Avaliar a presença de sinais e sintomas de DTM em Violinistas e Violetistas e analisar a sua influência no Comportamento Postural. Materiais e Métodos: Participaram neste estudo 78 indivíduos com idades entre os 18 e os 57 anos. No grupo de estudo (GE) incluíram-se 39 instrumentistas (28 violinistas; 11 violetistas). Estes foram comparados com um grupo de referência (GR), equiparado em género e idade, com indivíduos que nunca tinham tocado um instrumento musical. O DC/TMD e a Plataforma de Pressão Plantar RSscan 0,5m foram os instrumentos utilizados para avaliar, respectivamente, a presença de DTM e o Comportamento Postural. Os parâmetros posturográficos analisados foram a pressão plantar, a oscilação do Centro de Pressão (CP) nos planos médio-lateral e antero-posterior, a área total de oscilação, e distância total percorrida pelo CP. Resultados: A prevalência de sinais e sintomas associados a DTM foi de 61,5% no GE e de 30,8% no GR, associados a Desordens Dolorosas foi de 38,5% no GE e de 15,4% no GR, a DTM no lado direito de 23,1% no GE e de 10,3% no GR, e a DTM no lado esquerdo de 23,1% no GE e de 5,1% no GR. Em ambos os grupos, a prevalência de sinais e sintomas de DTM foi mais significativa nas mulheres (46,2% vs 25,6%) e no grupo etário mais baixo (18-27 anos). O tipo de instrumento, a experiência profissional e o tempo de prática semanal, não se revelaram influentes para a presença dos mesmos. Não se verificaram alterações estatisticamente significativas nos parâmetros posturográficos de ambos os grupos. Conclusão: Na amostra em estudo, a presença de sinais e sintomas de DTM é influenciada pela prática do violino ou da viola de arco mas estes factores não se reflectem em alterações no Comportamento Postural

Semi-Automatization of Support Vector Machines to Map Lithium (Li) Bearing Pegmatites

Machine learning (ML) algorithms have shown great performance in geological remote sensing applications. The study area of this work was the Fregeneda–Almendra region (Spain–Portugal) where the support vector machine (SVM) was employed. Lithium (Li)-pegmatite exploration using satellite data presents some challenges since pegmatites are, by nature, small, narrow bodies. Consequently, the following objectives were defined: (i) train several SVM’s on Sentinel-2 images with different parameters to find the optimal model; (ii) assess the impact of imbalanced data; (iii) develop a successful methodological approach to delineate target areas for Li-exploration. Parameter optimization and model evaluation was accomplished by a two-staged grid-search with cross-validation. Several new methodological advances were proposed, including a region of interest (ROI)-based splitting strategy to create the training and test subsets, a semi-automatization of the classification process, and the application of a more innovative and adequate metric score to choose the best model. The proposed methodology obtained good results, identifying known Li-pegmatite occurrences as well as other target areas for Li-exploration. Also, the results showed that the class imbalance had a negative impact on the SVM performance since known Li-pegmatite occurrences were not identified. The potentials and limitations of the methodology proposed are highlighted and its applicability to other case studies is discussed.The authors would like to thank the financial support provided by FCT—Fundação para a Ciência e a Tecnologia, I.P., with the ERA-MIN/0001/2017—LIGHTS project. The work was also supported by National Funds through the FCT project UIDB/04683/2020—ICT (Institute of Earth Sciences). Joana Cardoso-Fernandes is financially supported within the compass of a Ph.D. Thesis, ref. SFRH/BD/136108/2018, by national funds from MCTES through FCT, and co-financed by the European Social Fund (ESF) through POCH—Programa Operacional Capital Humano. The Spanish Ministerio de Ciencia, Innovacion y Universidades (Project RTI2018-094097-B-100, with ERDF funds) and the University of the Basque Country (UPV/EHU) (grant GIU18/084) also contributed economically

Highlighting the biological potential of the brown seaweed Fucus spiralis for skin applications

Skin aging is a biological process influenced by intrinsic and extrinsic factors. The last ones, mainly exposure to UV radiation, increases reactive oxygen species (ROS) production leading to a loss of extracellular matrix, also enhanced by enzymatic degradation of matrix supporting molecules. Thus, and with the growing demand for eco-friendly skin products, natural compounds extracted from brown seaweeds revealed to be good candidates due to their broad range of bioactivities, especially as antioxidants. The aim of this study was to assess the dermo-cosmetic potential of di erent fractions obtained from the brown seaweed Fucus spiralis. For this purpose, in vitro antioxidant (Total Phenolic Content (TPC), 1,1-Diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, Ferric Reducing Antioxidant Power (FRAP), Oxygen Radical Absorbance Capacity (ORAC)), anti-enzymatic (collagenase, elastase and hyaluronidase), antimicrobial, anti-inflammatory (NO production) and photoprotective (ROS production) capacities were evaluated. Although nearly all fractions evidenced antioxidant e ects, fraction F10 demonstrated the highest antioxidant ability (EC50 of 38.5 g/mL, DPPH assay), and exhibited a strong e ect as an inhibitor of collagenase (0.037 g/mL) and elastase (3.0 g/mL). Moreover, this fraction was also the most potent on reducing ROS production promoted by H2O2 (IC50 of 41.3 g/mL) and by UVB (IC50 of 31.3 g/mL). These bioactivities can be attributed to its high content of phlorotannins, as evaluated by LC-MS analysis, reinforcing the potential of F. spiralis for further dermatological applications.info:eu-repo/semantics/publishedVersio

A LCT pegmatite spectral library of the aldeia spodumene deposit: contributes to mineral exploration

Several methodologies can be employed in the prospection of Lithium (Li) in hard-rock (pegmatites). Spectrometry analysis, a Remote Sensing (RS) technique, can be applied to understand the surface spectral response of a sample, both to identify the rock-forming or alteration minerals in its composition and to validate the data collected in situ (by sensors onboard satellites/drones, for example). This paper aims to make available for public use the information acquired on the spectral composition of rock samples from the Barroso pegmatite field in Portugal, within the scope of the INOVMINERAL4.0 project. As a result, a spectral library was created with 47 spectra, collected from 11 different samples. All data is made available in a universal format, thus contributing to open science, corroborating the validation of local spectral data, and stimulating the creation of other databases, in other locations.The authors acknowledge the support provided by Portuguese National Funds through the FCT – Fundação para a Ciência e a Tecnologia, I.P. (Portugal) projects UIDB/04683/2020 and UIDP/04683/2020 (Institute of Earth Sciences); through ANI and COMPETE 2020 as well as European funds through the European Regional Development Fund (ERDF) with POCI-01-0247-FEDER- 046083 INOVMINERAL project. The authors also thank Savannah Resources PLC for access to the Aldeia pegmatite and for providing the samples used in this study. Cátia Rodrigues de Almeida and Douglas Santos were financially supported by Portuguese national funds through FCT (Grant: PRT/BD/153518/2021, Grant: UI/BD/154412/2023, respectively).info:eu-repo/semantics/publishedVersio

Metasomatic effect of Li-bearing aplite-pegmatites on psammitic and pelitic metasediments: Geochemical constraints on critical raw material exploration at the Fregeneda-Almendra Pegmatite Field (Spain and Portugal)

Fluid-assisted mass transfer and re-equilibration of mineral phases are common consequences of metasomatism associated with igneous intrusions. The addition and/or removal of chemical components in these environments may result in the generation of metasomatic aureoles, which can be recognized by their mineralogy and geochemistry. Due to an increasing demand for critical raw materials used in green energy technologies, rare-element granitic pegmatites have seen renewed interest in the mineral exploration industry. Granitic pegma-tites represent potential sources of critical commodities and geochemical studies of their related aureoles help to advance techniques in exploration targeting. Moreover, the role and timing of fluid exsolution during magma-tic-hydrothermal evolution in granitic-pegmatitic systems and concomitant element mobility remain highly debated.We present a prospect-scale systematic study of geochemical haloes generated by LCT (Li-Cs-Ta) family pegmatite dykes from the Fregeneda-Almendra Pegmatite Field, in the Central Iberian Zone of the Iberian Massif (Spain and Portugal). To understand the magnitude of metasomatic processes linked to these intrusions, we performed whole-rock mass-balance calculation of element gains and losses in variably metasomatized psam-mitic and pelitic host metasediments. The results show that F, B, Li, Rb, Cs, Sn, Be, Tl, As, W and S (+/- Mo, Ta) were carried by early exsolved and expelled aqueous fluids. The first evidence of element enrichment is recorded at distances of 4-5 times the thickness of the dykes, with exponentially increasing gains of those fluid-mobile elements proximal to the pegmatite margin. Enrichments that were detected farthest from the pegmatite mar-gins were those of Li and Cs, followed by Rb and, to a lesser extent, Sn, F, B, Be, and Tl. The most evolved (fractionated) aplite-pegmatites generated the broadest haloes, with concentrations higher than 200 ppm Li, 30 ppm Cs, 300 ppm Rb, and 15 ppm Sn in the metasediments indicating proximity to a mineralized dyke. In addition, absolute gains of up to-4000 ppm Li,-1300 ppm Cs,-1300 ppm Rb, and 170 ppm Sn in the host rocks could point to the presence of superimposed haloes from multiple evolved dykes.Financial support was provided by the European Commission's Horizon 2020 Innovation Programme [grant agreement No 869274, project GREENPEG: New Exploration Tools for European Pegmatite Green-Tech Resources]; grant RTI2018-094097-B-100 funded by MCIN/AEI/10.13039/501100011033 and, by "ERDF A way of making Europe"; and the University of the Basque Country UPV/EHU [grant GIU18/084]. The authors are grateful to Kathryn M. Goodenough, an anonymous reviewer, and Tania Martins for their constructive comments, which have improved considerably the quality of the manuscript. Editorial handling and helpful suggestions by Franco Pirajno and Allen K. Andersen are also acknowledged. The. Work of I. Garate-Olave has been supported also by the UPV/EHU by means of the "Convocatoria de contratacion para la especializacion de personal investigador doctor en la UPV/EHU 2019". Financial support provided by FCT- Fundacao para a Ciencia e a Tecnologia, I.P., with the ERA-MIN/0001/2017 - LIGHTS project and through the FCT project UIDB/04683/2020 and UIDP/04683/2020 - ICT (Institute of Earth Sciences) is recognized. J. Cardoso - Fernandes has been financially supported within the compass of a Ph.D. Thesis, ref. SFRH/BD/136108/2018, by Portuguese national funds from MCTES through FCT, and co-financed by the European Social Fund (ESF) through POCH - Programa Operacional Capital Humano - and NORTE 2020 regional program