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This paper describes the trajectory of a northeastern migrant who arrived in Roraima in the 1980s.The choice for the theme is based on two important moments: the first was the memories of childhood, of culture, something very strong in my life; the second occurred when, during the master's course classes, I became aware of the historicity and identity that I built throughout this period mediated by the social relations of living environments, feeling the need to register these re-significations of territorial identities. At each instance lived there was a growth, with the aggregation of new cultural values, where it was influenced and also influenced. The narrative research proposes to reveal the memories and stories of a 51-year-old man, who arrived in the state of Roraima at the age of 18, from the state of Goiás. We conclude that school is important for. The development of the systematic knowledge process that guides the subjects' lives during their existence, providing opportunities for a better quality of life and more conscious actions about the problems they experience. O presente relato descreve a trajetória de um migrante nordestino, que chega em Roraima na década de 80. A escolha pela temática se fundamenta em dois momentos importantes: o primeiro diz respeito as lembranças da infância, da cultura, algo muito forte na minha vida; o segundo ocorreu quando, durante as aulas do curso de mestrado tomei consciência da historicidade e identidade que construí ao longo deste período mediatizado pelas relações sociais dos meios viventes, sentindo a necessidade de registrar estas ressignificações das identidades territoriais. A cada instância vivida houve um crescimento, com agregação de novos valores culturais, onde sofreu-se influencia e também influenciou. A pesquisa narrativa propõe revelar as memórias e histórias de um homem de 51 anos, que chegou ao estado de Roraima aos 18 anos, oriundo do Estado de Goiás. Concluímos que a escola é importante para. O desenvolvimento do processo de conhecimento sistemático que norteia a vida do sujeito, durante sua existência, oportunizando uma melhor qualidade de vida e ações mais conscientes acerca dos problemas que vivenciam.

O presente documento relata o trabalho desenvolvido, no âmbito do estágio curricular que frequentei durante o presente ano letivo. Estando a entidade acolhedora inserida no ramo do Controlo de Acessos, o desafio que me foi lançado, consistiu no projeto de um circuito eletrónico, com capacidade de abrir remotamente os equipamentos da empresa, através da tecnologia de comunicação LoRa. Para além do circuito, foi também definido como requisito, a criação de uma interface gráfica, onde o utilizador possa tirar partido da solução desenvolvida, em termos de hardware. Sendo assim, este relatório de estágio, descreve as várias fases do trabalho desenvolvido, nomeadamente, a definição dos requisitos do sistema, tanto a nível do hardware como do software/firmware, a apresentação do estudo realizado sobre a comunicação LoRa, incluindo o seu principio de funcionamento, as suas características, as suas mais-valias e limitações, bem como as principais áreas de aplicação e finalmente, a descrição mais detalhada da solução desenvolvida. Desta forma, pretende-se descrever, com o detalhe possível, todo o trabalho realizado ao longo de seis meses de estágio. This document reports the work developed within the scope of the curricular internship which I attended during this school year. As the company is part of the Access Control business, the challenge that was set for me was the design of an electronic circuit, with the ability to remotely open the company’s equipment, through the LoRa communication protocol. In addition to the circuit, the creation of a graphical interface was also defined as a requirement, where the user can take advantage of the developed solution, in terms of hardware. Therefore, this internship report describes the various phases of the developed work, namely, the definition of the system requirements, both at the hardware and software/firmware level, the presentation of the study carried out on the LoRa communication, including its working principle, its characteristics, its strengths and limitations, as well as the main areas of application and finally, a more detailed description of the developed solution. Thus, it is intended to describe, with as much detail as possible, all the work carried out over the six months of the internship. Mestrado em Engenharia Eletrónica e Telecomunicações

Polyvinyl alcohol hydrogel (PVA) is a water-soluble synthetic polymer with an increasingly use in biomedical applications including vascular grafting. It was argued that the copolymerization of PVA with dextran (Dx) can result in an improvement of blood/biomaterial interactions. The focus of this experimental work is to assess that interaction through an in vivo and in vitro evaluation of the coagulation system activation. The thrombogenicity of the copolymer was determined by quantification of the adhered platelets, by the lactate dehydrogenase assay (LDH), quantification of whole blood clotting time and by quantification of platelet activation assessed by flow cytometry. The thrombin-antithrombin complex value was also determined. The obtained results for the in vitro assays suggested a non-thrombogenic profile for PVA/Dx. Additionally; the in vivo determinations were focused in the coagulation and hematological profile assessment in the animal model (sheep) after PVA/Dx vascular graft implantation. For coagulation homeostasis assessment, the intrinsic and extrinsic pathway activation was measured by the determination of prothrombin time (PT), activated partial thromboplastin time (APTT). Other coagulation activation and inflammatory markers like D-dimers, interleukin-6 (IL-6) and C-reactive protein (CRP) were also assessed. The PVA/Dx (90/10, v/v) copolymer tended to inhibit the platelet adhesion/activation process and the contact activation process for coagulation. Those results were also confirmed with the in vivo experiments where the measurements for APTT, IL-6 and CRP parameters were normal considering the species normal range values. The response to those events is an indicator of the in vitro and in vivo hemocompatibility of PVA/Dx and it allows us to select this biomaterial for further pre-clinical trials in vascular reconstruction.

Polyvinyl alcohol hydrogel (PVA) is a synthetic polymer with an increasing application in the biomedical field that can potentially be used for vascular grafting. However, the tissue and blood–material interactions of such gels and membranesare unknown in detail. The objectives of this study were to: (a) assess the biocompatibility and (b) hemocompatibility of PVA-based membranes in order to get some insight into its potential use as a vascular graft. PVA was evaluated isolated or in copolymerization with dextran (DX), a biopolymer with known effects in blood coagulation homeostasis.

Estágio realizado na MedMat Innovation e orientado pelo Doutora Marta Alves da Silva Tese de mestrado integrado. Engenharia Metalúrgica e de Materiais. Faculdade de Engenharia. Universidade do Porto. 2009

Relatório de estágio PRODEP III Estágio realizado na JSM-Esterilizadores e Equipamento Hospitalar e orientado pela Eng.ª Manuela Brás Relatório de estágio curricular da LEMM 2003/2004

Relatório de estágio PRODEP III Estágio realizado no Centro de Reabilitação Profissional de Gaia e orientado pelo Eng.ª Cristina Crisóstomo Relatório de estágio curricular da LEMM 2001/2002

Estágio realizado na DURIT - Metalurgia Portuguesa do Tungsténio, Lda. Relatório de estágio curricular da LEMM 1999/2000

Tese de mestrado. Engenharia Metalúrgica e de Materiais - especialização em Fundição. Faculdade de Engenharia. Universidade do Porto. 1998

Estágio financiado por: PRODEP II, Medida 5/Acção 5.2 - Estágios Relatório do Estágio Curricular da LEMM 1997/1998. Estágio realizado na empresa Minas e Metalurgia, S.A. e orientado pelo Eng.º João Miguel S. Teixeira.