QUESTIONS Do patients with chronic obstructive pulmonary disease (COPD) achieve a different distance on the six minute walk test (6MWT) conducted on a 10m course versus on a 30m course? When assessing the distance on a 6MWT conducted on a 10m course, is it valid to use existing reference equations that were generated on longer courses? DESIGN A randomised double-crossover experimental study. ...

The development of technologies based on the use of sulfate-reducing bacteria (SRB) to treat sulfate contaminated wastewaters has produced a cost-effective route to precipitate metals. In this work the effects of cadmium and manganese in the SRB growth rates were assessed. It was observed that duplication time is 50h in the presence of cadmium and 6h in the presence of manganese, thus showing t...

We report on the detection of four primordial galaxies candidates in the redshift range 4.55 ≤ z ≤ 4.76, as well as 4 other candidates in the range 4.12 ≤ z ≤ 4.32. These galaxies have been detected with the now common technique of the Lyman break, but with a very original instrumental setup, which allows the simultaneous detection on a single exposure of three narrow (FWHM ∼ 200 Å) bands. Depe...

conclusions these results suggest that treadmill training and yoga practice improved ambulatory function, fatigue and mood status in the individuals with mild to moderate ms. patients and methods thirty-one ms patients, all female with mean of age of 36.75 years and expanded disability status scale scores (edss) of 1.0 to 4.0 were recruited. subjects were randomly assigned to one of the three g...

A large number of Marine soft clay are distributed in the Pearl River Delta region China. The features mainly on high water content, sensitivity, compressibility, low density, strength and perviousness, which dramatically restricts local project construction. These often cause engineering problems such as subgrade settlement, pavement cracking, house tilting insufficient bearing capacity founda...

Abstract This research investigates the influence of sodium hydroxide (SH) molarity on fly ash-slag-based geopolymer mortar’s workability, setting time, and compressive strength. The SH varies between 1M, 2M, 4M, 6M, 8M, 10M. mixture was proportioned to contain 30% slag as a substitution for ash, with alkaline activator binder (Al/Bi) ratio 0.45 silicate (SS/SH) 1.5. results showed that at rang...

Tanners, welders and workers in various industries are exposed to acute and chronic toxicity of these heavy metals world wide. The present work is undertaken to evaluate the genotoxic effects of Ni and Cr at two different exposure intervals with a single dose and the amelioration of this toxicity using curcumin. Ni in form of nickel chloride (4.216 X 10M) and Cr as potassium dichromate (1.36 X ...

The central goal of this project is a deeper understanding of the dynamic adjustment of mobile sandy sediments to fluid forcing in and near the surf zone at small (1cm to 10m) and intermediate (10m to 100m) horizontal scales. The effort is motivated by the dual need to develop more realistic models of fluid-sediment interactions in the nearshore zone, and for suitable in situ measurement techni...