During three Summer seasons (1997/98-1999/00), photographic sampling of humpback whales was conducted by Projeto Baleia/Brazilian Antartic Programme in Waters of the Antartic Peninsula. Whales photographed totalled: 63 ...

Recognition of individual sea turtles is mostly achieved by checking artificial tags previously attached to them, a method which is made difficult by the considerable tag loss rate and which requires repeated manipulation ...

The principal objective of this paper is to offer a quantitative methodology for making forecasts to be used as an essential ingredient for MRP. The forecasts are for an individual product and for the very short-term, which ...

Models with essential non-perturbative QCD dynamics for the production of charmonium are extrapolated to give predictions of prompt J=Ã production at the LHC. Di®erences of up to an order of magnitude occurs, although the ...

Este trabalho foi aplicado de forma a demonstrar a meia-vida radioativa no processo de decaimento radioativo, de maneira lúdica e descontraída com uso de poliedros, contemplando tópicos de Física Moderna no Ensino Médio. ...

O aperfeiçoamento de um teste se dá através da seleção, substituição ou revisão de itens, e quando um item é analisado, aumenta a validade e precisão do teste. Este artigo trata da apresentação dos resultados relativos às ...

We give an action for the massless spinning particle in pseudoclassical mechanics by using grassmann variables. The constructed action is invariant under _-reparametrizations, local SUSY and O(N) transformations. After ...

The transverse momentum distributions of hadrons in 200GeV Au-Au collisions at RHIC are calculated using the smoothed particle hydrodynamics code SPheRIO. They are compared with data from STAR and PHOBOS Collaborations. ...

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 ...