[1] Nutrients are transferred from the nutricline into the winter mixed layer through a combination of vertical and lateral advection, referred to here as induction, the reverse of the subduction process. This advective supply of nutrients maintains the high productivity at high latitudes over timescales of several years and longer. Climatological diagnostics over the North Atlantic reveal that...

1. Laboratório de Helmintoses Intestinais do Centro de Pesquisas René Rachou da Fundação Oswaldo Cruz, Belo Horizonte, MG, Brasil. 2. Departamento de Patologia do Instituto Oswaldo Cruz/FIOCRUZ, Rio de Janeiro, RJ, Brasil. Apoio financeiro: PAPES 2/FIOCRUZ. Endereço para correspondência: Dr. Omar S. Carvalho. Centro de Pesquisas René Rachou/FIOCRUZ. Av. Augusto de Lima 1715, Barro Preto, 30190-...

Incompressible fluids on curved surfaces are considered with respect to the interplay between topology, geometry and fluid properties using a surface vorticity-stream function formulation, which is solved using parametric finite elements. Motivated by designed examples for superfluids, we consider the influence of a geometric potential on vortices for fluids with finite viscosity and show numer...

Learning from 3D point-cloud data has rapidly gained momentum, motivated by the success of deep learning on images and increased availability data. In this paper, we aim to construct anisotropic convolution layers that work directly surface derived a point cloud. This is challenging because lack global coordinate system for tangential directions surfaces. We introduce DeltaConv, layer combines ...

The viscoelastic properties of polyamide 11 samples were modified by subjecting these specimens to multifunction cavitation within a magnetic field, using device equipped with 0.1 mm water jet nozzle. During trials, field was applied the entire stream while varying distance between nozzle and specimen. effects various processing conditions assessed monitoring removal ink sample surfaces. result...

Being subjected to a high-pressure abrasive water jet, solid samples will experience an essential variation of both internal stress and physical characteristics, which is closely associated with the kinetic energy attached to the abrasive particles involved in the jet stream. Here, experiments were performed, with particular emphasis being placed on the kinetic energy attenuation and turbulent ...

A computational model is proposed in order to explain how bottom-up and top-down signals are combined into a unified perception of figure and background. The model is based on the interaction between the ventral and the dorsal stream. The dorsal stream computes saliency based on boundary signals provided by the simple and the complex cortical cells. Output from the dorsal stream is projected to...

candida albicans is an opportunistic fungi that is able to thrive in many host niches, including the skin, mucosal, surfaces, the blood stream and internal organs. agglutinin-like sequence (als) genes which could play a role in forming biofilms, adherence to host surfaces as a virulence factor and antifungal drug resistant. the purpose of the present study was to evaluate the presence als1 and ...

OBJECTIVES This study determined the effect of the air-stream application time and the bonding technique on the dentin bond strength of adhesives with different solvents. Furthermore, the content and volatilization rate of the solvents contained in the adhesives were also evaluated. MATERIALS AND METHODS Three adhesive systems with different solvents (Stae, SDI, acetone; XP Bond, Dentsply De ...

The physical mechanisms for vortex breakdown which, it is proposed here, rely on the production of a negative azimuthal component of vorticity, are elucidated with the aid of a simple, steady, inviscid, axisymmetric equation of motion. Most studies of vortex breakdown use as a starting point an equation for the azimuthal vorticity (Squire 1960), but a departure in the present study is that it i...