Molecular and crystal structure of Di(μ-N,S-thiocyanato)-bis[(N,N-dimethylbenzylamine-C2, N)palladium(II)]

The cyclopalladated complex [Pd(C2,N-dmba)(μ-SCN)]2, where dmba = N,N-dimethylbenzylamine, was structurally characterized by single-crystal X-ray diffraction. This compound crystallizes in the monoclinic system, space group P21/n with a = 9.578(1)Å, b = 12.323(2)Å, c = 10.279(2)Å, β = 117.03(1)°, V = 1080.7(3)Å3, Z = 2. Each Pd(II) center displays a distorted square-planar coordination environment, formed by the C and N atoms from the dmba ligand, and one set of N and S atoms from the bridging SCN groups. 2009 © The Japan Society for Analytical Chemistry.

Estudo conformacional de polianfóteros fracos utilizando simulações de Monte Carlo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A reconstrução de partes perdidas de obras polifônicas renascentistas: uma aplicação do Sacrae Cantione da Pacem de Carlo Gesualdo

Pós-graduação em Música - IA

Uso do método de Monte Carlo para simulação e detecção do espectro de raios-X gerado com feixes de elétrons em alvo de Molibdênio, utilizando o Geant4

The huge demand for procedures involving ionizing radiation promotes the need for safe methods of experimentation considering the danger of their biological e ects with consequent risk to humans. Brazilian's legislation prohibits experiments involving this type of radiation in humans through Decree 453 of Ministry of Health with determines that such procedures comply with the principles of justi cation, optimization and dose limitation. In this line, concurrently with the advancement of available computer processing power, computing simulations have become relevant in those situations where experimental procedures are too cost or impractical. The Monte Carlo method, created along the Manhattan Project duringWorldWar II, is a powerful strategy to simulations in computational physics. In medical physics, this technique has been extensively used with applications in diagnostics and cancer treatment. The objective of this work is to simulate the production and detection of X-rays for the energy range of diagnostic radiology, for molybdenum target, using the Geant4 toolkit. X-ray tubes with this kind of target material are used in diagnostic radiology, speci cally in mammography, one of the most used techniques for screening of breast cancer in women. During the simulations, we used di erent models for bremsstrahlung available in physical models for low energy, in situations already covered by the literature in earlier versions of Geant4. Our results show that although the physical situations seems qualitatively adequate, quantitative comparisons to available analytical data shows aws in the code of Geant4 Low Energy source

Para que serve o passado: cronache di poveri amanti e a crônica da história

Vasco Pratolini recreates the 1920’s and the assertion of fascism resorting to the medieval and historiographical tradition, to the social outlook and the childhood memoir. Under the effects of the intellectual movement of the Italian Resistance, within the democratic context of the parliamentary republic and pluripartyism (1946- 1948), the novel makes clear the equalitarian perspective betraying the represented moment, when hopelessness crowned the political and social life. Carlo Lizzani shoots his adaptation in the closure of horizons caused by the restoration of the conservative forces (1953), reducing the visionary focus of the narrative and representing the past from the disillusionments of the present.

Estetica ed etica: un itinerario interpretativo, alla luce della ricerca di valori nel pensiero di Ingarden, Tischner, Levinas

The research is an itinerary from the discovery of the force of Love in the Song of Songs, where the human figure is given entirely through aesthetics, right to the agony of the other's death, where ethics, the "Severe Name of Love", is the only guard left; a journey through the contradictions of human mind, that, though aiming at Good, Beauty, Happiness, is completely immersed into the darkness of its finiteness and into evil. The consciousness leads to the creation of a world whose essential prefiguration is the Beauty; whose fundamental expression is the Good. Ethics must translate itself in responsability towards the other, in the history. This immersion into reality preserves the aesthetic and ethic dimension from the temptation of absolutizing the finite. In this work, the proximity and divergence between the aesthetic and ethic dimension is analysed, with reference to significant moments of the philosophical reflection, namely in the thought of Ingarden, Tishner and Levinas.