STUDY DESIGN Feasibility study on the acquisition of lumbar spine kinematic data from upright magnetic resonance images obtained under heavy load carrying conditions. OBJECTIVE To characterize the effect of the load on spinal kinematics of active Marines under typical load carrying conditions from a macroscopic and lumbar-level approach in active-duty US Marines. SUMMARY OF BACKGROUND DATA ...

Despite the fact that high risk sailing operations are often caused by heavy weather and characterized by vigorous ship motions, the vast majority of (full mission) bridge simulators are Earth fixed. We therefore evaluated the value of adding motion to ship simulation in terms of technical feasibility, measurability of performance, and effects on training. Of eighteen navy personnel, nine recei...

This paper describes a novel approach for handling translation divergences in a Generation-Heavy Hybrid Machine Translation (GHMT) system. The approach depends on the existence of rich target language resources such as word lexical semantics, including information about categorial variations and subcate-gorization frames. These resources are used to generate multiple structural variations from ...

BACKGROUND To determine the influence of lifting speed and type on peak and cumulative back compressive force (BCF) and shoulder moment (SM) loads during symmetric lifting. Another aim of the study was to compare static and dynamic lifting models. METHODS Ten male participants performed a floor-to-shoulder, floor-to-waist, and waist-to-shoulder lift at three different speeds [slow (0.34 m/s),...

Severe adverse events (SAEs) following ivermectin treatment may occur in people harbouring high Loa loa microfilarial (mf) densities. In the context of mass ivermectin distribution for onchocerciasis control in Africa, it is crucial to define precisely the geographical distribution of L. loa in relation to that of Onchocerca volvulus and predict the prevalence of heavy infections. To this end, ...

The zinc protease (gp63) of promastigotes was found to play a role in the sand fly part of the Leishmania life cycle. Lutzomyia longipalpis females were fed with promastigotes (10(6) per ml) of a Leishmania amazonensis clone whose gp63 was up- and down-regulated by directional cloning into P6.5 for sense- and anti-sense transcription. Early development was found to differ significantly between ...

A protonmotive force (pmf) across the cell's inner membrane powers the flagellar rotary motor of Escherichia coli. Speed is known to be proportional to pmf when viscous loads are heavy. Here we show that speed also is proportional to pmf when viscous loads are light. Two motors on the same bacterium were monitored as the cell was slowly deenergized. The first motor rotated the entire cell body ...

OBJECTIVES To examine the association between occupational lifting during pregnancy and preterm birth. The risk of preterm birth was estimated for total burden lifted per day and number of medium and heavy loads lifted per day. METHODS In a study population of 62 803 pregnant women enrolled to the Danish National Birth Cohort from 1996 to 2002, the association between self-reported occupation...

This paper presents a hybrid cylinder/wire drive parallel arm. Its workspace is analyzed for the application of manipulating heavy materials in construction and ship building industries. The conventional Stewart platform and a multiple wire drive mechanism are compared, and hybrid drive mechanisms are considered in analysis and designing. The total number of cylinder and wire is fixed to seven ...