FPGA implementation of a LSTM Neural Network

Este trabalho pretende fazer uma implementação customizada, em Hardware, duma Rede Neuronal Long Short-Term Memory. O modelo python, assim como a descrição Verilog, e síntese RTL, encontram-se terminadas. Falta apenas fazer o benchmarking e a integração de um sistema de aprendizagem

Identification and validation of microsatellite markers in strawberry tree (Arbutusunedo L.)

Strawberry tree (Arbutus unedo L.), an evergreen shrub/small tree of the family Ericaceae, is a main constituent of the Mediterranean basin flora; although it is also found in southwestern Prance, Macaronesia, and Ireland. The small fruits are edible but mostly used for preparation of preserves and jams, and for liquors such as the Portuguese traditional "aguardente de medronho". Traditionally cultivated by small farmers, often in consociation with Quercus sp., strawberry tree is presently emerging as a new important fruit crop cultivated in large orchards by modern export-oriented enterprises. This change of paradigm requires a growing role of plant breeding, upstream of the production process. Genomic tools for this species are mostly limited to the chloroplast genome sequence and to genomic data described in this work. In order to identify strawberry tree microsatellite (SSR) loci we performed partial genome next-generation sequencing using the Ion Torrent technology. The sequenced similar to 24.6M nucleotides resulted in the identification of 1185 microsatellite markers mostly constituted by dinucleotide motifs. The relative amount of microsatellite dinucleotide motifs (AG/CT - 71.7%, AC/GT - 20.5%, AT/AT - 2.9%, and CG/CG - 0.3%) is similar to the one observed in other Ericaceae species. Among a tested sample of 40 SSR primer pairs, 20 amplified well-defined PCR products, 12 (30%) were validated as polymorphic. Used in our collaborative project for molecular identification of selected and improved clones, the identified SSR loci constitute a strong tool for a large panoply of applied and fundamental studies of this emerging fruit crop.Pluriannual Funding Program of the Portuguese National Foundation for Science and Technologyinfo:eu-repo/semantics/publishedVersio

Analysis of simply supported wood beams at ambient and high temperatures

The main objective of this work is to present a methodology for safety analysis of simply supported wood beams at ambient and high temperatures with a concentrated load at mid-span. Sixteen different beam configurations will be studied. All calculations were conducted according the Eurocode 5, part 1-1 and part 1-2. During this study will be analyzed the safe load bearing capacity according standards and compared with the elastic and plastic load from beam theory. The beam theory can provide sufficient accuracy up to the point of instability. The standard methods are generally conservative and they are suitable to be used for design purposes with safety. The studied beam cross sections will be in glued laminated wood, as yellow birch, with characteristics equals to a Glulam GL28H.info:eu-repo/semantics/publishedVersio

Empirical Research of the ISO 9001:2015 Transition Process in Portugal: Motivations, Benefits, and Success Factors

An empirical study of more than 300 Portuguese organisations ISO 9001 certified, or in certification process, encompassing a wide range of activities sectors, was carried out. As of May 2017, 19% of the respondents already have ISO 9001:2015 certification and all the remaining one’s plan to complete the process in time. The principal reported benefits are risk-based thinking, mapping of the organisational context, and stakeholder identification. Simultaneously those were the issues that required more attention and effort to be mastered and implemented. Additionally, there is evidence that ISO 9001:2015 enhances both internal and external organisational issues and generates benefits for all the researched dimensions. Based on the respondents’ responses, organisations who claimed that external motivations were the primary drivers to ISO 9001:2015 implementation systematically rate higher all the benefits when compared with the rating ascribed by those organisations who claimed internal motivations. Moreover, it is possible to conclude that the perceived benefits from ISO 9001:2015 implementation and certification seem to be strongly influenced by two primary dimensions: the (smaller) organisation size and the (lesser) international presence.The authors would like to acknowledge the contribution of the respondents. CIDEM Centro de Investigação e Desenvolvimento em Engenharia Mecânica R&D unit is funded by the FCT – Portuguese Foundation for the Development of Science and Technology, Ministry of Science, Technology, and Higher Education, under the Project UID/EMS/0615/2016. This study had the financial support of FCT Fundação para a Ciência e Tecnologia of Portugal under the project UID/CEC/00319/2013. Pedro Domingues is supported by FCT Post-Doc Grant Reference SFRH/BPD/103322/2014.info:eu-repo/semantics/publishedVersio

Using ICT to support reflection in pre-service mathematics teacher education

This paper analyses a virtual supervision setting (e-mail and forum) during the practicum in a pre-service secondary school mathematics teacher education program. It is a study of the authors’ own professional practice using a qualitative-interpretative approach and case studies of student teachers. The results show that the setting was significant for pre-service teachers who had a more reflective attitude, but was seen as a burden by the others. The forum enabled fruitful reflections and discussions and e-mail was mostly used for organizational matters. In the future, attention must be paid to the role of the educational supervisor in fostering participation in the forum and use of e-mail.Este artigo analisa um dispositivo de supervisão virtual (e-mail e fórum) durante o estágio num curso de formação inicial de professores de Matemática do ensino secundário. É um estudo dos autores sobre a sua própria prática profissional usando uma abordagem qualitativa e interpretativa e estudos de casos de futuros professores. Os resultados mostram que o dispositivo foi significativo para os futuros professores que tinham uma atitude mais reflexiva mas foi visto como um “peso” pelos outros futuros professores. O fórum permitiu reflexões frutuosas e discussões e o e-mail foi principalmente usado para matérias organizacionais. No futuro, deve ser dada atenção ao papel do supervisor educacional em promover a participação no fórum e o uso do e-mail

Internal Ossa-Morena Zone Ophiolitic Sequences: geodynamic implications for the evolution of the SW branch of the Iberian Variscan Chain

The Internal Ophiolitic Sequences correspond to allochthonous oceanic crust fragments that outcrop near the SW boundary of the Ossa-Morena Zone (Evora-Beja Domain), in an internal position relative to the Beja-Acebuches Ophiolitic Complex. The Internal Ophiolitic Sequences occur as tectonic imbrications or klippen, in the Moura Phyllonitic Complex. Despite deformation and metamorphism (greenschist/amphibolite facies), they still preserve a typical ophiolitic internal stratigraphy identical to the one described for many LOT (“Lherzolitic Ophiolite Type”) ophiolites. Geochemical data indicates that the Internal Ophiolitic Sequences have variable tholeiitic chemistry, transitional between N-MORB and E-MORB. Petrogenetic modelling suggests that the observed geochemical variations reflect both mantle source heterogeneity and partial melting processes. The Internal Ophiolitic Sequences geochemistry indicates that their igneous protholites formed in an anorogenic tectonomagmatic environment, like the ocean ridge basins, without any influence of orogenic components related to subduction mechanisms. These features contrast markedly with those reported for the Beja-Acebuches Ophiolitic Complex, which have been interpreted as representing oceanic crust generated in a “back-arc” setting,. Thus, supporting the existence of two distinct oceanic basins (ocean ridge and back-arc) during the geodynamical evolution of the SW Iberian Variscan Chain. Therefore, the Internal Ophiolitic Sequences in the Ossa-Morena Zone reflect the early oceanization events during the Variscan Orogeny

Fotobiomodulação como opção de tratamento acessório de doenças peri-implantares : uma revisão sistemática

Introdução: Com a corrente evidência científica não existe um protocolo definido para o tratamento das doenças peri-implantares, tais como a mucosite e a periimplantite, mas, no entanto, existe uma lista de recomendações para obter o melhor resultado final. Objetivo deste estudo é de verificar se o uso de laser é benéfico quando utilizado como terapia coadjuvante a tratamentos cirúrgicos ou não cirúrgicos e de perceber se um dia poderá se tornar um tratamento gold standard para doenças peri-implantares tais como a mucosite e peri-implantite. Materiais e métodos: Foi feita uma pesquisa eletrónica nas bases de dados da MEDLINE (NCBI pubmed e PMC), Scopus e Elsevier. As palavras chaves utilizadas nas procuras foram as seguintes: ("periimplantitis" OR "peri-implantitis" OR "mucositis") AND ("low-level laser therapy (LLLT)" OR "photobiomodulation therapy") AND ("clinical" OR "in vivo" OR human) or ("CO2" OR "DIODE" OR "ER: YAG" OR “ND:YAG” OR ER,CR:YSGG”) AND (Peri-implantitis OR mucositis) Resultados: Um total de 2958 estudos foram analisados após a pesquisa com a combinação de palavras-chaves. Foram removidos 951 duplicados. Após uma primeira leitura do título e resumo 1923 publicações foram removidas. Numa segunda leitura foi analisado o full text de 84 artigos por 2 investigadores independentes (JM e GF), neste ponto 77 artigos foram excluídos da revisão, apenas 7 foram escolhidos para integrar na revisão esta seleção foi determinada na base dos critérios de exclusão e inclusão Conclusão: Com base nas provas limitadas atualmente disponíveis, não podemos estabelecer nenhuma conclusão por si, devido a heterogeneidade existente e o pequeno número de ensaios incluídos o que foi um problema no âmbito desta revisão. Foi demonstrado que o tratamento a laser dispõe de benefícios, mas continua a ser uma grande dúvida se existe potencial no seu uso no tratamento das doenças peri-implantares.Introduction: With the current scientific evidence there is no defined protocol for the treatment of peri-implant diseases, such as mucositis and peri-implantitis, but nevertheless there is a list of recommendations to obtain the best result. The objective of this study is to see if the use of laser is beneficial when used as an adjunctive therapy to surgical or non-surgical treatments and to understand if it may one day become a gold standard treatment for peri-implant diseases such as mucositis and periimplantitis. Materials and methods: An electronic search was performed in MEDLINE (NCBI pubmed and PMC), Scopus and Elsevier databases. The key words used in the searches were as follows: ("periimplantitis" OR "peri-implantitis" OR "mucositis") AND ("low-level laser therapy (LLLT)" OR "photobiomodulation therapy") AND ("clinical" OR "in vivo" OR human) or ("CO2" OR "DIODE" OR "ER: YAG" OR "ND:YAG" OR ER,CR:YSGG") AND (Peri-implantitis OR mucositis) Results: A total of 2958 studies were analyzed after searching with keyword combination. A total of 951 duplicates were removed. After a first reading of the title and abstract 1923 publications were removed. In a second reading the full text of 84 articles was analyzed by 2 independent researchers (JM and GF), at this point 77 articles were excluded from the review, only 7 were chosen to be part of the review this selection was determined based on the exclusion and inclusion criteria Conclusion: Based on the limited evidence currently available, we cannot establish any conclusion per se due to the existing heterogeneity and the small number of included trials which was a problem within the scope of this review. Laser treatment has been shown to have benefits, but it remains a major question whether there is potential for its use in the treatment of peri-implant diseases

OFIOLITOS E METAMORFISMO DE ALTA PRESSÃO

Artigo de síntese sobre o limite entre as Zonas de Ossa-Morena e Sul Portuguesa e sobre a sua interpretação como uma zona de sutura varisca

Alojamiento Provisional Autosustentable

El objetivo del proyecto es diseñar un campamento y módulo de vivienda temporal y sustentable que logre mermar la problemática de la población damnificada y desplazada de Ituango, al nortede Antioquia. El predio por intervenir se localiza en el sector noroccidental del municipio, con una población aproximada de 472 habitantes

Avaliação de metais em pescado da região do Pontal da Barra, Laguna dos Patos, Pelotas-RS

Os metais pesados têm a capacidade de acumular-se em tecidos vivos ao longo da cadeia alimentar. Peixes podem se tornar a principal forma de transferir para a população esses elementos, uma vez que eles são capazes de bioacumulação e bioconcentração. Com o objetivo de investigar a bioacumulação nos peixes no Pontal da Barra-Laguna dos Patos, em Pelotas, foram escolhidas três espécies abundantes na região, Micropogonias furnieri (Corvina), Mugil platanus (Tainha) e Netuma barba (Bagre). Amostras da sua musculatura foram analisados para verificar o conteúdo de Al, Cd, Cr, Cu, Fe, Mn, Ni, Pb e Zn. Amostras em quintuplicata sofreram digestão ácida HNO3/HCIO4, sendo os extratos analisados por plasma indutivamente acoplado - espectrometria de emissão óptica (ICP-OES). Os níveis de cromo encontrados nas três espécies estavam acima dos estabelecidos pela legislação brasileira (Decreto-Lei 55,871-65), que determinam como um nível máximo tolerado para o cromo 0,1 mg kg-1. Os 82,46 ± 4,69% mg kg-1 de zinco na espécie, Netuma barba, também excedeu o limite permitido. As concentrações de cádmio encontrada na espécie Micropogonias furnieri, 0,92 ± 8,16% mg kg-1 ficaram próximas ao limite permitido. Os demais analitos, encontraram-se em níveis inferiores aos estabelecidos pelo Ministério da Saúde e Anvisa