A number of studies have used GPS technology to categorise rugby union locomotive demands. However, the utility of the results of these studies is confounded by small sample sizes, sub-elite player status and the global application of absolute speed thresholds to all player positions. Furthermore, many of these studies have used GPS units with low sampling frequencies. The aim of the present st...

Abstract Carboxymethylcellulose (CMC) and ultrasound gel (USG) seem to be suitable clear model fluids substitute real ultra-high-performance concretes (UHPCs), enabling experimental monitoring of events occurring within these mixtures at similar flow behaviour. USG is eligible for UHPC with significant yield stress. CMC having a concentration better UHPCs exhibiting indistinct The rheological b...

An internal kink instability is observed to grow and saturate in a line-tied screw pinch plasma. Detailed measurements show that an ideal, line-tied kink mode begins growing when the safety factor q = (4pi2r2B(z))/(mu0I(p)(r)L) drops below 1 inside the plasma; the saturated state corresponds to a rotating helical equilibrium. In addition to the ideal mode, reconnection events are observed to pe...

The in vitro and in vivo antichlamydial activities of HSR-903 were investigated. The MICs of HSR-903 for different species of chlamydia were 0.016 to 0.063 microg/ml, which were superior to those of conventional fluoroquinolones. The therapeutic effect of HSR-903 in experimental mouse Chlamydia psittaci pneumonia was also excellent and almost equal to that of minocycline and superior to that of...

The structure of fibers of polyadenylic acid at acid pH has been studied by S-ray diffraction. A model is proposed consisting of two parallel intertwined helical chains, each having a screw of 3.8 .k and 45 " and related to each other by a +-ad asis parallel to the fiber axis. Coordinates, bond distances and angles and the calculated Fourier transform are given for this model. Reasons are given...

OBJECTIVE To identify predictors of future adoption of home smoking restriction (HSR), given that 40% of inner-city smokers report current HSR. DESIGN Secondary analysis of data on smokers enrolled in a double-blind, placebo-controlled, randomized trial of bupropion hydrochloride for smoking cessation. SETTING Community health center in Kansas City, Kan, from August 1, 2000, to December 31,...

BACKGROUND Despite significant investments in health systems research (HSR) capacity development, there is a dearth of information regarding how to assess HSR capacity. An alliance of schools of public health (SPHs) in East and Central Africa developed a tool for the self-assessment of HSR capacity with the aim of producing institutional capacity development plans. METHODS Between June and No...

BACKGROUND High quality health systems research (HSR) in fragile and conflict-affected states (FCAS) is essential to guiding the policies and programmes that will improve access to health services and, ultimately, health outcomes. Yet, conducting HSR in FCAS is challenging. An understanding of these challenges is essential to tackling them and to supporting research conducted in these complex e...

We compared the in vitro antimycobacterial activity of a new fluoroquinolone, HSR-903, with strong activity against gram-positive cocci with those of levofloxacin (LVFX), sitafloxacin (STFX), and gatifloxacin (GFLX). The MICs of the quinolones for Mycobacterium tuberculosis and Mycobacterium avium complex were in the order STFX approximately GFLX < LVFX <== HSR-903 and STFX <== GFLX <== HSR-903...

This paper presents a parameter study for optimum rotor geometrical parameter combinations of a refrigeration helical twin screw compressor with four commonly used lobe combinations and five different length/diameter ratios and wrap angles. The volumetric and indicated efficiencies of the compressor are important. So also are other factors such as rotor deflection, bearing load, bearing life an...