The Painlevé expansion for the second Painlevé equation (PII) and fourth Painlevé equation (PIV) have two branches. The singular manifold method therefore requires two singular manifolds. The double singular manifold method is used to derive Miura transformations from PII and PIV to modified Painlevé type equations for which auto-Bäcklund transformations are obtained. These auto-Bäcklund transf...

South Central Texas emergency planners have organised a regional Personal Identity Verification (PIV) project for hospital and emergency workers. This paper describes the development and administrative challenges in designing and implementing an electronic PIV system across multiple organisations in a 22-county region.

Few studies have focused on the risks of peripheral intravenous catheters (PIVs) as sources for Staphylococcus aureus bacteremia (SAB), a life-threatening complication. We identified 34 PIV-related infections (7.6%) in a cohort of 445 patients with SAB. Peripheral intravenous catheter-related SAB was associated with significantly longer bacteremia duration and thrombophlebitis at old PIV sites ...

Quantification of the hydrodynamic disturbance of free-swimming zooplankton provides insight into propulsion as well as organism sensory interactions. Current flow measurement techniques, such as planar particle image velocimetry (PIV), are limited by their two-dimensional nature. These techniques also are challenged by the small spatial scale of zooplankton, by the high speeds achieved by many...

BACKGROUND Influenza-vaccination rates among healthcare workers (HCW) remain low worldwide, even during the 2009 A(H1N1) pandemic. In France, this vaccination is free but administered on a voluntary basis. We investigated the factors influencing HCW influenza vaccination. METHODS In June-July 2010, HCW from wards of five French hospitals completed a cross-sectional survey. A multifaceted camp...

New techniques are developed to improve the velocity flow-field measurement capability within a freesurface boundary layer region on which progressive capillarygravity waves are present. Due to the extremely thin but rather vortical characteristics of the aforementioned boundary layer, conventional particle image velocimetry (PIV) methods fail to estimate velocity (and vorticity) vectors at an ...

A method is proposed that allows threedimensional (3D) two-component measurements to be made by means of particle image velocimetry (PIV) in any volume illuminated over a finite thickness. The method is based on decomposing the cross-correlation function into various contributions at different depths. Because the technique is based on 3D decomposition of the correlation function and not reconst...

the proper and quantitative recognition of the scale of turbulence in regard to issues such as sediment transport is of major importance. different experimental techniques can be used to determining the scale of turbulence, but the accuracy of these techniques is open to question. in this paper, after a review of the taylor method, the restrictions and advantages of velocity measurement techniq...

The wavelet-based vector multiresolution technique was proposed and applied to the post-processing of PIV results for identifying the multi-scale turbulent structures. By analyzing the instantaneous streamlines and vorticity fields of various scales the important information on the multi-scale flow structures was obtained. The large-scale vortices or coherent structures with a central scale of ...