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Foreign direct investment: robustness analysis of an attractiveness index
Oliveira, João Zambujal; Amaral, JoséOne of the most heavily employed tools to define countries’ policies are the attractiveness indexes. The main purpose of our paper is to formally verify the capacity of an attractiveness index to describe the phenomenon of Foreign Direct Investment (FDI). Severe weaknesses were detected through the use of a framework (princi pal components analysis and Cronbach’s alpha reliability) to analyse indexes, regarding...
Influence of TEMPO-oxidised cellulose nanofibrils on the properties of filler-c...
Lourenço, Ana F.; Gamelas, José A. F.; Nunes, Tiago; Amaral, José; Mutjé, Pere; Ferreira, Paulo J.In this work, cellulose nanofibrils (CNF) were produced from a Eucalyptus globulus bleached kraft pulp by TEMPO-mediated oxidation and mechanical homogenisation, and their effects in papermaking, namely filler flocculation and retention, dry and wet-web strength and structural properties, were studied in detail. Cellulose nanofibrils possessing 0.6 mmol/g carboxyl groups and a degree of polymerisation (DP) of c...
Relatório de Estágio Curricular – Sport Lisboa e Benfica (Lisboa)
Amaral, JoséO presente relatório tem como objetivo fazer uma descrição pormenorizada das actividades desenvolvidas durante o estágio curricular realizado no Sport Lisboa e Benfica (SLB), instituição sediada em Lisboa, e que decorreu entre 16 de Agosto e 16 de Novembro de 2011, conforme Plano de Estágio (Anexo I). No primeiro capítulo, é feita uma breve apresentação do SLB, a sua história, fundadores e os seus feitos em Por...
Integration of TMR sensors in silicon microneedles for magnetic measurements of...
Amaral, José; Pinto, Vítor; Costa, Tiago; Gaspar, João; Ferreira, Ricardo; Paz, Elvira; Cardoso, Susana; Freitas, Paulo P.In this work an alternative neuroscience tool for electromagnetic measurements of neurons at the level of individual cells is developed. To perform such measurements we propose the integration of an array of magnetoresistive sensors on micro-machined Si probes capable of being inserted within the brain without further damage. Si-etch based micromachining process for neural probes is demonstrated in the manufact...
Measuring brain activity with magnetoresistive sensors integrated in micromachi...
Amaral, José; Gaspar, João; Pinto, Vitor; Costa, Tiago; Sousa, Nuno; Cardoso, Susana; Freitas, PauloAn alternative neuroscience tool for magnetic field detection is described in this work, providing both micrometer-scale spatial resolution and high sensitivity to detect the extremely small magnetic fields (nT range) induced by the ionic currents flowing within electrically active neurons. The system combines an array of magnetoresistive sensors incorporated on micro-machined Si probes capable of being inserte...
A New Approach for the Modification of Paper Surface Properties Using Polyoxome...
Saraiva, Mikhail S.; Gamelas, José A.; Sousa, António P. Mendes de; Reis, Bruno M.; Amaral, José; Ferreira, P. J.A new approach for the chemical modification of the surface of paper based on the application of colloidal mixtures containing cationic starch and polyoxometalates on uncoated base paper is presented. Polyoxometalates with the Keggin-type structure and physical properties similar to those presented by coating pigments, namely H3PW12O40·23H2O, H4SiW12O40·24H2O, and K7PW11O39·9H2O, have been used in order to impr...
A circulação da documentação/informação como instrumento de apoio à tomada de d...
Amaral, JoséA circulação de documentação no Gabinete do Chefe do Estado-Maior da Força Aérea (GABCEMFA), encarada na perspectiva de auxiliar o processo de tomada de decisão, decorre de uma forma que, no entendimento do autor deste trabalho, não é a mais correcta, dado que grande parte dela se processa (especificamente a que tem por finalidade ser remetida a organismos exteriores à Força Aérea), não para facilitar/auxiliar ...
BPH and prostatitis
Oliveira, Vítor; Amaral, José; Ferraz, LuisBenign prostatic hyperplasia is a condition which contributes to, but is not the only cause of lower urinary symptoms in elderly men. Although efforts have been initiated in recent years to elucidate the etiology of prostate growth based on old man, were not established clear cause-effect relationships. Just knowing the conditions which give rise to lower urinary symptoms in man, as in the case of benign prosta...