Encontrados 51 documentos, a visualizar página 1 de 6
Um programa de treino da criatividade: estudo exploratório com alunos do 1º Ciclo
Oliveira, Raquel Susana Rodrigues deA ideia de que os recursos ambientais exercem forte influência no desenvolvimento da criatividade é hoje, unanimemente aceite pela comunidade científica, sendo a Escola perspetivada como o contexto ideal para a promover (Alencar, 2000). Este estudo desenrola-se em contexto escolar e é seu propósito contribuir com informações úteis e meios necessários para a promoção da criatividade na Escola. Ao longo deste est...
Biological profile of nanohydroxyapatite particles on isolated and co-cultured ...
Oliveira, Raquel Marinho RodriguesA nano-hidroxiapatite (nanoHA) tem inúmeras aplicações em estratégias de reparação e regeneração do tecido ósseo. A maioria dos trabalhos publicados, a propósito do perfil biológico da nanoHA, baseia-se em filmes, compósitos, estruturas densas ou porosas, ou cimentos compostos por nanopartículas de HA. No entanto, existe um défice evidente em relação à avaliação biológica de nanopartículas isoladas de HA. Consi...
Mediterraneidade : interações no design de produto : a identidade cultural como...
Oliveira, Raquel Salomé SousaTese de Doutoramento. Engenharia Industrial e Gestão. Faculdade de Engenharia. Universidade do Porto. 2012
The impact of childbirth on sexual functioning in women with episiotomy
Leal, Isabel Pereira; Lourenço, Sílvia N.; Oliveira, Raquel V.; Carvalheira, Ana Alexandra; Maroco, JoãoObjective: To compare the pregnancy period with the postpartum period, and infer if the presence of episiotomy interferes with the experience of female sexuality after childbirth. Method: This is an exploratory and descriptive, quantitative study. A non-probability, convenience sample of 108 women in the first stage (during pregnancy), and of 93 women in the second stage (after birth), was gathered in the Obste...
Quidgest’s internationalization plan to Norway
Oliveira, Raquel PascoalA Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics ; As enterprises are becoming more globalized and businesses are getting more complex, it is crucial to have efficient software information management systems. Quidgest offers solutions that align these needs with customization and fast time to market and updati...
Aromatic hydroxylation reactions by electrogenerated HO radicals : a kinetic study
Oliveira, Raquel; Bento, M. Fátima; Geraldo, M. DulceThe oxidation of benzoic acid (BA) and of 4-hydroxybenzoic acid (4-HBA) by galvanostatic electrolysis with simultaneous oxygen evolution, using BDD or Pt as anode materials is studied. Results concerning the oxidation kinetics as well as the identification and quantification of hydroxylated products are reported. First order kinetics are used to describe the consumption rates of both compounds despite of the an...
Characterization of antioxidants activity in a microfluidic channel
Oliveira, Raquel; Bento, M. Fátima; Geraldo, M. Dulce; Thouin, L.; Sella, C.Antioxidant is the common designation for substances that have a potential action in the prevention of oxidative stress. The characterization of the reactivity of these substances has attracted the attention of many researchers, with the aim to establish correlations between the intake of antioxidants and health maintenance or to detect early stages of diseases associated with oxidative stress. The measurement ...
Electrochemical generation of hydroxyl radicals for protein oxidation studies
Oliveira, Raquel; Bento, M. Fátima; Geraldo, M. Dulce; Marcos, João Carlos; Rodrigues, JoãoIn the last decades, different studies shown that the increase in oxidative stress is associated with the risk factors implicated in the pathophysiology of many chronic diseases. Therefore it is important to evaluate the role that hydroxyl radicals-mediated damage may play in major human disorders. Proteins are important targets as they compose ca. 70% of cells. To understand the impact of specific modification...
Evaluation of antioxidant radical scavenging activity by means of electrogenera...
Oliveira, Raquel; Brault, Justine; Bento, M. Fátima; Geraldo, M. DulceHydroxyl radical is one of the most reactive radicals. The generation of HO• represents an important task in different areas, such as organic synthesis [1], oxidative stress studies [2] and in the detoxification of effluents [3]. The generation of hydroxyl radicals based on metal catalyzed decomposition of hydrogen peroxide, by Fenton or Fenton-like reactions, is the most spread method. In the context of the mi...
Estudo da capacidade antioxidante de compostos fenólicos baseado em electrólise...
Pereira, Nelson; Santos, Carlos; Oliveira, Raquel; Bento, M. Fátima; Geraldo, M. DulceA caracterização da capacidade antioxidante de moléculas e de alimentos tem captado a atenção de investigadores em diferentes áreas dada a ação dos antioxidantes no retardamento de processos oxidativos que estão na origem do stresse oxidativo. Dentro dos métodos convencionais utilizados na avaliação da capacidade antioxidante destacam-se os métodos óticos baseados na análise da resposta do antioxidante ao ataqu...
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