Exacerbations are an important feature and outcome measure in chronic obstructive pulmonary disease (COPD), but little is known about changes in their severity, recovery, symptom composition or frequency over time. In this study 132 patients (91 male; median age 68.4 yrs and median forced expiratory volume in one second (FEV1) 38.4% predicted) recorded daily symptoms and morning peak expiratory...

T1 mapping is a promising quantitative tool for assessing diffuse cardiomyopathies. The purpose of this study is to quantify in vivo accuracy of the Modified Look-Locker Inversion Recovery (MOLLI) cardiac T1 mapping sequence against the spin echo gold standard, which has not been done previously. T1 accuracy of MOLLI was determined by comparing with the gold standard inversion recovery spin ech...

This article investigates the effect of material size on efficiency flotation concentration gold-copperarsenic ores Taror deposit (Republic Tajikistan) and studies dependence gold recovery duration process with purpose developing an alternative technological scheme for processing this ore type. According to X-ray phase analysis, samples consist rock-forming minerals by 92%. Ore mineralization i...

Nanovid microscopy, which uses 30- to 40-nm colloidal gold probes combined with video-enhanced contrast, can be used to examine random and directed movements of individual molecules in the plasma membrane of living cells. To validate the technique in a model system, the movements of lipid molecules were followed in a supported, planar bilayer containing fluorescein-conjugated phosphatidylethano...

A pre-treatment method for upgrading gold from a polymetallic gold-zinc-lead ore by flotation was studied. X-ray diffraction analysis of the sulfide showed that quartz, calcite, pyrite, sphalerite, and galena are main constituents ore. The composition contained 6.49 ppm Au, 3.48% Zn, 1.25% Pb, 17.98% Fe, 20.36% S. Due to complexity ore, recovery is generally low. objective this study develop pr...

The paper describes a small full-scale plant based on the Gold-REC 1 process, designed and patented by University of L’Aquila; hydrometallurgical process allows treatment printed circuit boards (PCBs). first step is mechanical to reduce size scraps below 2 mm. extraction base metals occurs in reactor sulfuric acid/hydrogen peroxide solution. After filtration, solid leached again with thiourea f...