A summary is given of some results and perspectives of the hamiltonian ADM approach to 2 + 1 dimensional gravity. After recalling the classical results for closed universes in absence of matter we go over the the case in which matter is present in the form of point spinless particles. Here the maximally slicing gauge proves most effective by relating 2 + 1 dimensional gravity to the RiemannHilb...

OBJECTIVE This study was aimed at describing the nutritional status of 10 to 17 year old children enrolled in public and private schools from different regions having specific Brazilian semi-arid area characteristics. MATERIAL AND METHODS This was a cross-sectional, descriptive and comparative study using a stratified probability sample (n=1 701). 900 children were male and 801 female selecte...

Assembly pathways of virus-like particles formed from a virus coat protein cage encapsulating a metal nanoparticle were studied by intrinsic fluorescence quenching. Depending on buffer conditions, the in vitro formation of a virus-like particle can take place through cooperative or non-cooperative adsorption of protein subunits on the nanoparticle template. Simple equilibrium models provided es...

Early data from randomized controlled trials consistently show that prophylactic human papillomavirus virus-like particle (HPV VLP) vaccines are effective in preventing infection and lesions caused by the targeted HPV type(s). Two vaccines, a bivalent HPV-16/18 VLP vaccine and a quadrivalent HPV-6/11/16/18 VLP vaccine, are currently undergoing evaluation in phase III trials with anticipation of...

The purpose of the study was to identify the relationships between segmental angular momentum and ball velocity between the following events: ball toss, maximal elbow flexion (MEF), racket lowest point (RLP), maximal shoulder external rotation (MER), and ball impact (BI). Ten tennis players performed serves recorded with a real-time motion capture. Mean angular momentums of the trunk, upper arm...

Jet-like three-particle azimuthal correlations can discriminate various physical scenarios that have been proposed to explain the observed strong modification to twoparticle azimuthal correlations. The three-particle correlation analysis is notoriously difficult in heavy-ion collisions due to the large combinatorial backgrounds. We describe the general idea behind the jet-like three-particle az...

Particle motion simulation subdivides graphical objects into a set of small particles behaving according to specific rules. Real-time particle motion simulation makes it possible to simulate natural phenomena like smoke or Brownian motion for demonstration and verification purposes. The paper describes how the enormous computational requirements can be solved using distributed parallel computat...

Plasma remnant-like particle-cholesterol (RLP-C) and the RBC (n-3) index are novel risk factors for cardiovascular disease. Effects of docosahexaenoic acid (DHA) supplementation on these risk factors in hypertriglyceridemic men have not been studied. We determined effects of DHA supplementation on concentrations of plasma RLP-C, the RBC (n-3) index, and associations between concentrations of pl...

investigations in recent decades have shown an unexpected increase in aerosol concentrations in metropolitan and industrialized regions. it was sometimes followed by heat islands and probably decreases in precipitation due to an inadvertent cloud overseeding process. particle pollutants act like small cloud condensation nuclei in which they form large collections of small droplets in cloud. col...

Recent studies have demonstrated that elevated levels of cholesterol in the form of remnant-like particles (RLP-C) induce deterioration of endothelial function during the fasting state, but it is not known whether postprandial RLP-C elevation has the same effect. The objective of this study was to assess the effect of postprandial RLP-C elevation on endothelial function in 24 fasting normolipid...