PURPOSE To characterize features of internal hernia (IH) at small-bowel follow-through (SBFT) following Roux-en-Y gastric bypass procedure (RYGBP) for morbid obesity. MATERIALS AND METHODS The institutional review board approved this HIPAA-compliant retrospective study; informed consent was waived. Radiologic database review revealed 1655 SBFT studies over 6 years in 1282 patients after RYGBP...

We report for the first time a new methodology to determine molecular configurations of a large molecular complex in a dynamical process on a metal surface by combining time-resolved tunneling spectroscopy (I-t) and density functional theory calculation (DFT). Two examples, (t-Bu)4-ZnPc and FePc, representing molecular rotation and lateral diffusion on Au(111) surfaces, respectively, were appli...

The discovery of current-switchable bi-stable remanent domain configurations on small ferromagnetic islands is reported. Rectangular NiFe islands with a thickness of 50 to 100 nm and lateral dimensions on the order of several microns were imaged using magnetic force microscopy after application of 10 ns current pulses through the material. The closure configuration can be set into either the 4 ...

The diagnostic accuracy of double-contrast arthrotomography in the evaluation of internal derangement of the temporomandibular joint is unknown. Therefore, findings from double-contrast arthrotomograms of 48 temporomandibular joint autopsy specimens were correlated with postmortem morphology seen from dissections or cryosections. Arthrotomographic diagnosis was confirmed in 41 joints, signifyin...

INTRODUCTION Knowledge of the site of obstruction and the pattern of airway collapse is essential for determining correct surgical and medical management of patients with Obstructive Sleep Apnea Syndrome (OSAS). To this end, several diagnostic tests and procedures have been developed. OBJECTIVE To determine whether drug-induced sleep endoscopy (DISE) or Müller's maneuver (MM) would be more su...

A simple realization of a spatial integrator array is constructed by using individual units composed of two thin lenses. The spatial integration feature depends on the value of the focal distance of one of the lens. This focal lenght, and its relation with the thickness of the individual element is related with the lateral magnification defining the synthetic image given by the array. Although ...

AIM We report our experience with cannulated hip screws and analyse the risk factors associated with their early failure. MATERIALS AND METHODS All patients undergoing cannulated hip screws at a single UK Major Trauma Centre between November 2009 and November 2011 were retrospectively identified. Radiographs were analysed for fracture displacement, successful reduction, and screw configuratio...

The development and control of XY stage driven by ultrasonic linear motor is presented. In this paper, the stage is driven by the hybrid-bolt clamped Langevin-type (Hybrid BLT) ultrasonic motor which consists of a longitudinal and a lateral PZT. The hybrid BLT is excited by its matched natural frequency without a discordance between natural frequency of a 3rd longitudinal mode and a 6th lateral...

The shallow lateral recesses of the trefoil shape of the lumbar spinal canal have been implicated in the production of the spinal stenosis syndrome. In the present study, 485 skeletons of South African Blacks and Whites were examined in order to establish the incidence and possible genesis of the trefoil configuration. The overall incidence was 14 per cent, with little variation between the sex...