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Low torque levels can initiate a removal of the passivation layer and cause fretting in modular hip stems

Taper connections of modular hip prostheses are at risk of fretting and corrosion, which can result in reduced implant survival. The purpose of this study was to identify the minimum torque required to initiate a removal of...

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The influence of playing level on the biomechanical demands experienced by rugby union forwards during machine scrummaging
This study investigated machine scrummaging at different playing levels in rugby union and analysed kinetic factors that might influence performance and injury risk.

Thirty-four forward packs from six different playing...
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The influence of playing level on the biomechanical demands experienced by rugby union forwards during machine scrummaging
This study investigated machine scrummaging at different playing levels in rugby union and analysed kinetic factors that might influence performance and injury risk.

Thirty-four forward packs from six different playing...
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Large diameter total hip arthroplasty modular heads require greater assembly forces for initial stability
OBJECTIVES: Modular junctions are ubiquitous in contemporary hip arthroplasty. The head-trunnion junction is implicated in the failure of large diameter metal-on-metal (MoM) hips which are the currently the topic of one the...
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Low torque levels can initiate a removal of the passivation layer and cause fretting in modular hip stems

Taper connections of modular hip prostheses are at risk of fretting and corrosion, which can result in reduced implant survival. The purpose of this study was to identify the minimum torque required to initiate a removal of...

Published by:
Eigenvalue repulsions and quasinormal mode spectra of Kerr-Newman
ÓJC Dias, M Godazgar, JE Santos
Jul 14, 2022
The frequency spectra of the gravito-electromagnetic perturbations of the Kerr-Newman (KN) black hole with the slowest decay rate have been computed recently. It has been found that KN has two families $-$ the photon sphere...
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Psychological research is increasingly moving online, where web-based studies allow for data collection at scale. Behavioural researchers are well supported by existing tools for participant recruitment, and for building and...
Large diameter total hip arthroplasty modular heads require greater assembly forces for initial stability
OBJECTIVES: Modular junctions are ubiquitous in contemporary hip arthroplasty. The head-trunnion junction is implicated in the failure of large diameter metal-on-metal (MoM) hips which are the currently the topic of one the...
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Cinchona Alkaloid-Catalyzed Asymmetric Conjugate Additions
Matthew N Grayson, KN Houk
Aug 23, 2016
Wynberg's report from 1977 that natural cinchona alkaloids catalyze the asymmetric conjugate addition of aromatic thiols to cycloalkenones is a landmark discovery in hydrogen bonding organocatalysis. Wynberg proposed that this...
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Over and under
RDG Irvine, EU Lee
Aug 03, 2017
Drawing on fieldwork in three primary schools in East Cambridgeshire, UK, this paper explores children's relationship with the places where they live, and the ways in which those relationships are mediated by play, exploration...
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Specific tackling situations affect the biomechanical demands experienced by rugby union players
Tackling in Rugby Union is an open skill which can involve high-speed collisions and is the match event associated with the greatest proportion of injuries. The purpose of this study was to analyse the biomechanics of rugby...
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Specific tackling situations affect the biomechanical demands experienced by rugby union players
Tackling in Rugby Union is an open skill which can involve high-speed collisions and is the match event associated with the greatest proportion of injuries. The purpose of this study was to analyse the biomechanics of rugby...
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