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Mitochondria functionality and sperm quality

Although mitochondria are best known for being the eukaryotic cell powerhouses, these organelles participate in various cellular functions besides ATP production, such as calcium homoeostasis, generation of reactive oxygen species (ROS), the intrinsic apoptotic pathway and steroid hormone biosynthesis. The aim of this review was to discuss the putative roles of mitochondria in mammalian sperm function and how t...

Project LIFEisGAME: characters preferences and characters' empirical validation

A influência das práticas culturais nos níveis de nitratos em vegetais

Dissertação de Mestrado em Segurança Alimentar ; Alguns vegetais, nomeadamente espinafres e alfaces, apresentam uma elevada capacidade em acumular nitratos, e é conhecido que o excesso de consumo deste ião pode ter implicações na saúde humana. Neste contexto, pretendeu-se determinar alguns factores que possam influenciar o teor de nitratos em alfaces e espinafres, para que seja possível, no futuro próximo, ter...

Technological interventions and facial emotional recognition in autism spectrum...

Serious games and emotion teaching in autism spectrum disorders: a comparison w...

Serious games and emotion teaching in autism spectrum disorders: a comparison w...

Preparação de copolímeros à base de 2-vinilpiridina com propriedades bactericidas

We report the development of two copolymers based on 2-vinylpyridine, styrene and divinylbenzene (2Vpy-Sty-DVB) with different porosity degrees. The copolymers were subsequently quaternized with methyl iodide. To prepare charge transfer complexes, the unmodified copolymers and their derivatives quaternized with methyl iodine were impregnated with iodine. The antibacterial properties of the polymers were evaluat...

Avaliação do processo eletrolítico em corrente alternada no tratamento de água ...

The main objective was to study the treatment of wastewater generated by the oil industry. This work consisted of tests of electroflocculation with alternate current (AC), and chemical coagulation. The removal efficiencies of organic load were evaluated by the removal of oils and greases, color and turbidity. The parameters investigated were the change in alternate current frequency, the initial pH, the distanc...

Operação de aquisição de empresa estratégia fiscal

Mestrado em Contabilidade ; O presente estudo debruça-se sobre uma operação de aquisição e de eventual fusão subsequente de empresa, por parte de um Grupo económico com sede no território nacional, cuja holding se encontra cotada na Euronext Lisboa. Este estudo tem como objectivo avaliar os impactos fiscais de dois cenários alternativos relacionados com a selecção da empresa adquirente: a própria holding - uma...

Factors affecting adolescents’ choice of branded vs. fashionable clothing

A 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 ; The aim of this project is to analyse the importance of branded and fashionable clothing, and which of them is the most important for adolescents when choosing their clothes, according with gender and age. The research analysed how three factors (peers’ influe...