The discovery of the jet quenching in central Au + Au collisions at the Relativistic Heavyion Collider (RHIC) at Brookhaven National Laboratory has provided clear evidence for the formation of strongly interacting dense ...

Background and Objectives Irradiation of whole blood and blood components before transfusion is currently the only accepted methodology to prevent transfusionassociated graft-vs.-host disease. In the present work, we ...

We define a coupling of two baker maps through a p=2 rotation both in position and in momentum. The classical trajectories thus exhibit spiraling, or loxodromic motion, which is only possible for conservative maps of at ...

The characteristic stretching and squeezing of chaotic motion is linearized within the finite number of phase space domains which subdivide a classical baker map. Tensor products of such maps are also chaotic, but a more ...

Quarkonium hadroproduction in association with a photon at high energies provides a probe of the dynamics of the strong interactions as it is dependent on the nuclear gluon distribution. Therefore, it could be used to ...

In a previous work we applied a discrete symmetry (Z' 2) in order to light fermions acquire mass only at one loop level. This symmetry and the assumption of alignment between fermions and sfermions allow us to avoid FCNC ...

In a previous work we applied a discrete symmetry (Z′ 2 ) in order to light fermions acquire mass only at one loop level. This symmetry and the assumption of alignment between fermions and sfermions allow us to avoid FCNC ...

Neste trabalho foram analisados recobrimentos de poli(tereftalato de etileno), PET, depositados em aço carbono através da técnica de aspersão térmica à combustão, e produzidos a partir de pós oriundos de processos de moagem, ...

Este trabalho tem por objetivo discutir a formação de professores numa rede de conversação sustentada pelas tecnologias da informação e comunicação. Compreender a formação de professores em rede possibilita pensar com o ...

We propose a SUSY variant of the action for a massless spinning particles via the inclusion of twistor variables. The action is constructed to be invariant under SUSY transformations and -reparametrizations even when an ...

Two problems relative to the electromagnetic coupling of Duffin-Kemmer-Petiau (DKP) theory are discussed: the presence of an anomalous term in the Hamiltonian form of the theory and the apparent difference between the ...

O desenvolvimento de modelos semiquantitativos, através do programa VISQ, que têm como base a Dinâmica de Sistemas, permitiu, com a utilização de técnicas e ferramentas de elicitação de conhecimento, o desenvolvimento de ...

We investigate the radiation emitted from a scalar source in circular orbit around a Reissner- Nordstr¨om black hole. Particle and energy emission rates are analytically calculated in the low- and high-frequency regimes ...

Squeezed correlations of particle antiparticle pairs, also called Back-to- Back Correlations, are predicted to appear if the hadron masses are modified in the hot and dense hadronic medium formed in high energy nucleus-nucleus ...

Squeezed correlations of particle antiparticle pairs were predicted to exist if the hadron masses were modified in the hot and dense medium formed in high energy heavy ion collisions. Although well-established theoretically,they ...

A série de exposições relativas necessárias para produzir um intervalo útil de densidades ópticas no filme pode ser obtida pelos métodos sensitométricos de tempo escalonado ou intensidade escalonada. Um sensitômetro de ...

Neste artigo explora-se a aplicação da simulação computacional na avaliação de incertezas de medição. Apresenta brevemente o método clássico ou de propagação de incertezas, sua formulação e suas limitações. A seguir, ...

The paper presents the main conclusions of an exploratory study of the ability of Sixth form students in England to use some different approaches to computational modelling. The research involves a questionnaire survey of ...

Este artigo é um estudo teórico e experimental da dinâmica de uma lâmina flexível acoplada a um atuador do tipo Harmonic Drive. Como resultado principal, é apresentada uma técnica que permite, a partir dos dados fornecidos ...

Both hard and soft QCD dynamics are important in charmonium production, as presented here through a next-to-leading order QCD matrix element calculation combined with the color evaporation model. The observed xF and p⊥ ...