Encontrados 17 documentos, a visualizar página 1 de 2
Contextos emocionais na arbitragem do futebol
Pina, João Paulo Carvalho Aragão eMestrado em Psicologia das Emoções ; O presente estudo teve como principal objectivo analisar a influência do som ambiente na tomada de decisão dos árbitros de futebol. Cinco grupos de participantes (árbitros da LPFP e outros árbitros, jornalistas, estudantes de deporto e outros estudantes), num total de 156 sujeitos, foram aleatoriamente submetidos a uma tarefa experimental de análise de 36 jogadas, distribuí...
The control system of the ATLAS/TileCal
Pina, João António Tomásio, 1970-Tese de doutoramento, Física (Física), Universidade de Lisboa, Faculdade de Ciências, 2011 ; TileCal is the hadronic calorimeter of the ATLAS detector that is operating at CERN. The main task of the TileCal Detector Control System (DCS) is to enable the coherent and safe operation of the detector. All actions initiated by the operator and all errors, warnings, and alarms concerning the hardware of the detector...
Synthesis and characterization of the ground and excited states of tripodal-lik...
Pina, João; Melo, J. Sérgio Seixas de; Batista, Rosa M. F.; Costa, Susana P. G.; Raposo, M. Manuela M.Six new thiophene oligomers, here designated as tripodal-like oligothienyl imidazoles, were synthesized and have been investigated in ethanol solution at room and low temperature. The oligomers bear a common core where two or more thiophenes are linked to one or more imidazole unit which further links through its alpha position to a different number of incremental thiophene units. The study involves a comprehen...
The influence of the relative position of the thiophene and pyrrole rings in do...
Pina, João; Melo, J. Sérgio Seixas de; Batista, Rosa M. F.; Costa, Susana P. G.; Raposo, M. Manuela M.A detailed spectroscopic and photophysical study has been carried out on a series of heterocyclic compounds -known to display nonlinear optical properties- consisting on one electron donating thienylpyrrolyl π-conjugated system functionalized with an electron acceptor benzothiazole moiety. The absorption, emission and triplet-triplet absorption together with all relevant quantum yields (fluorescence, intersyste...
Desenho e modelização de sistemas de energia empregando materiais supercondutor...
Pina, João Miguel MurtaDissertação apresentada para obtenção do Grau de Doutor em Engenharia Electrotécnica, especialidade de Máquinas Eléctricas, pela Universidade Nova de Lisboa,Faculdade de Ciências e Tecnologia ; Os materiais supercondutores de alta temperatura apresentam-se como potenciais promotores de importantes desenvolvimentos na área da Energia. As suas características electromagnéticas, como o transporte de corrente com ...
Synthesis, spectroscopy, photophysics and thermal behaviour of stilbene-based t...
Gigante, Bárbara; Esteves, M. Alexandra; Pires, N.; Davies, Matthew L.; Douglas, Peter; Fonseca, Sofia M.; Burrows, Hugh D.; Pina, JoãoNovel stilbene-based triarylamines with dehydroabietic acid methyl ester moieties have been synthesised by palladium catalysed C–N coupling reactions. The presence of the bulky dehydroabietic acid group increases solubility, hinders crystallisation and permits their sublimation while preserving their electronic and optical characteristics. This makes them good candidates for various molecular electronic applica...
Thiophene-phenylene/naphthalene-based step-ladder copolymers
Bünnagel, Torsten W.; Nehls, Benjamin S.; Galbrecht, Frank; Schottler, Kristina; Kudla, Christof J.; Volk, Markus; Pina, João; Melo, João S. Seixas deA series of step-ladder copolymers based on thiophene-phenylene-thiophene SL1-SL3 and thiophene-naphthylene-thiophene SL4 repeat units with varying lengths of the oligothiophene segment has been designed and synthesized via a microwave-assisted Stille-type cross-coupling reaction followed by a polymer-analogous cyclization reaction. The optical properties of the step-ladder copolymers have been investigated in ...
Determinantes da inflação numa pequena economia aberta : o caso de Cabo Verde
Pina, João Emanuel Brito Ledo deMestrado em Economia Monetária e Financeira ; O Acordo de Cooperação Cambial entre Cabo Verde e Portugal de Março de 1998 veio criar profundas alterações no regime de política monetária em Cabo Verde. É normalmente citado que, se um pequeno país optar por um regime de paridade fixa em relação a uma moeda dominante, esse país impõe a si próprio uma disciplina que consiste basicamente em subordinar a sua polític...
Synthesis and photophysical properties of dansyl-based polyamine ligands and th...
Parola, A. Jorge; Lima, João Carlos; Pina, Fernando; Pina, João; Melo, João Seixas de; Soriano, Conxa; García-España, Enrique; Aucejo, RicardoThe synthesis, potentiometric studies and photophysical properties of two new polyamine ligands (L1 and L2) possessing the dansyl chromophore were studied in aqueous 0.15 M NaCl. The compounds show the absorption and emissions bands characteristic of the dansylamide fluorophore and both present intramolecular excited state proton transfer at intermediate pH ranges. One of the ligands (L2) strongly coordinates Z...
Spectral and Photophysical Characterization of Donor-π-Acceptor Arylthienyl- an...
Pina, João; Melo, J. Sérgio Seixas de; Burrows, Hugh D.; Batista, Rosa M. F.; Costa, Susana P. G.; Raposo, M. Manuela M.A comprehensive study has been made in solution at room temperature (293 K), low temperature (77 K), and in thin films (Zeonex matrixes) of the spectral and photophysical properties of six arylthienyl- and bithienyl-benzothiazole derivatives functionalized with different donor groups. Similar experiments have been carried out with two related precursors (containing the arylthienyl and aryl-bithienyl conjugated ...
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