Encontrados 13 documentos, a visualizar página 1 de 2
Oxidative stress adaptation in aggressive prostate cancer may be counteracted b...
Freitas, Mariana; Baldeiras, Inês; Proença, Teresa; Alves, Vera; Mota-Pinto, Anabela; Sarmento-Ribeiro, Ana BelaOxidative stress has been associated with prostate cancer development and progression due to an increase of reactive oxygen species (ROS). However, the mechanisms whereby ROS and the antioxidant system participate in cancer progression remain unclear. In order to clarify the influence of oxidative stress in prostate cancer progression, we performed this study in two human prostate cancer cell lines, PC3 and HPV...
Motivations which influence volunteers' satisfaction
Ferreira, Marisa R.; Proença, Teresa; Proença, João F.In this paper we attempt to find out which motivations influence volunteers satisfaction. So, in a first moment, we categorize satisfaction through a factor analysis and then use linear regression models to find out the relations previously mentioned. Furthermore we analyse the existence of correlations between some demographic attributes and the other variables. In this research the population under study incl...
Motivation among Hospital volunteers: an empirical analysis in Portugal
Ferreira, Marisa R.; Proença, Teresa; Proença, João F.The purpose of this paper is to identify the different types of motivations in hospital volunteers. We present a literature review about different types of motivation and we collect data from hospital volunteers through a questionnaire. Four different motivation categories are identified: development and learning, altruism, career recognition and belonging and protection. The main motivations expressed are deve...
Organisational influence on volunteer satisfaction and attitudes towards HRM pr...
Ferreira, Marisa R.; Proença, Teresa; Proença, João F.We examine volunteer satisfaction with HRM practices, namely recruitment, training and reward in NPOs and attitudes regarding the appropriateness of these practices. The participants in this study are 76 volunteers affiliated with four different NPOs, who work in hospitals and have direct contact with patients and their families. Analysing aggregate results we show that volunteers are more satisfied with traini...
Hospital volunteers – are they satisfied?
Ferreira, Marisa R.; Proença, Teresa; Proença, João F.We examine satisfaction with HRM practices, namely recruitment, training and rewarding in NPO’s and attitudes regarding the appropriateness of these practices. The participants in this study are 76 volunteers, affiliated to 4 different NPO’s, which work in hospitals and have direct contact with patients and their families. Analysing aggregate results we show that volunteers are more satisfied with training, and...
Volunteers and management factors in nonprofit organisations: a brief literatur...
Ferreira, Marisa R.; Proença, João F.; Proença, TeresaThe objective of this paper is to review and discuss the literature about the management factors that can influence volunteer work. First we present the different management factors. This discussion is followed by the identification of the key management factors in volunteering: recruitment, training and rewarding. Finally, we present two main gaps in the literature that justify the scope for further research: ...
Brain oxidative stress in a triple-transgenic mouse model of Alzheimer disease
Resende, Rosa; Moreira, Paula Isabel; Proença, Teresa; Deshpande, Atul; Busciglio, Jorge; Pereira, Cláudia; Oliveira, Catarina ResendeAlzheimer disease (AD) is a neurodegenerative disease which is characterized by the presence of extracellular senile plaques mainly composed of amyloid-[beta] peptide (A[beta]), intracellular neurofibrillary tangles, and selective synaptic and neuronal loss. AD brains revealed elevated levels of oxidative stress markers which have been implicated in A[beta]-induced toxicity. In the present work we addressed the...
Doxorubicin increases the susceptibility of brain mitochondria to Ca2+-induced ...
Cardoso, Susana; Santos, Renato X.; Carvalho, Cristina; Correia, Sónia; Pereira, Gonçalo C.; Pereira, Susana S.; Oliveira, Paulo J.; Santos, Maria S.http://www.sciencedirect.com/science/article/B6T38-4T7087K-3/2/399a0c99d1e73842d49f885883fb79d7
Motivações dos voluntários em ONG’s: uma revisão crítica da literatura
Ferreira, Marisa R.; Proença, João F.; Proença, TeresaEste trabalho revê e discute de forma crítica a literatura sobre as motivações dos voluntários para doarem o seu tempo às ONG’s. Quanto melhor uma organização conhecer os voluntários, mais essa organização poderá ir de encontro às necessidades e expectativas desses mesmos indivíduos. Por isso, compreender as motivações que podem levar um indivíduo a doar o seu tempo a uma determinada organização e a manter-se n...
Cigarette Smoking Increases Oxidative Stress in Prostate Cancer Patients – A Pr...
Freitas, Mariana; Baldeiras, Inês; Proença, Teresa; Pascoal, Rui; Rabaça, Carlos; Valido, Frederico; Mota-Pinto, Anabela; Sarmento-Ribeiro, Ana BelaCigarette smoke is an oxidant, creating free radicals that are involved in carcinogenesis namely in Prostate Cancer (PC). However, a correlation between cigarette smoking and PC progression remains unclear. This study was directed to evaluate the correlation between cigarette smoking, Oxidative Stress (OS) and PC development and progression. The Total Antioxidant Status (TAS), Glutathione (GSH) and Malondialdeh...
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