BACKGROUND The Dix-Hallpike manoeuvre is performed for diagnosis and the Epley manoeuvre used for treatment of posterior canal benign paroxysmal positional vertigo (BPPV). However, musculoskeletal conditions may restrict utility of these manoeuvres. OBJECTIVE The Semont and liberatory manoeuvres are described in this article. These manoeuvres are simple and highly effective for the diagnosis ...

The ob gene was cloned in 1994 using the methodology of positional cloning. Leptin, the protein encoded by the ob gene, was identified in 1995 and shown to be a hormonal signal that regulates energy balance.14 Since its discovery 15 years ago, 30,943 articles on leptin have been written (S Korres, personal communication, 2009), providing an opportunity to assess, with some hindsight, the impact...

Spatial statistical analyses inevitably are affected by positional errors embedded in georeferenced data. Positional errors further propagate when observations need to be geographically aggregated. This data accuracy issue often results in unreliable statistical conclusion about attribute variables in spatial statistical modeling. This paper investigates how positional errors propagate to varia...

Standard structural methods for the assessment of glaucoma, such as the planimetry of stereo color photographs of the optic disc, involve a subjective component either by the patient or examiner and suffer from poor reproducibility. Spectral-domain optical coherence tomography (SD-OCT) provides a 3-D, cross-sectional, microscale depiction of biological tissues. Given the wealth of volumetric in...

OBJECTIVE To determine the effect of reduced abdominal compression in prone position on ascending colonic movement during supine-to-prone positional change during CT colonography (CTC). MATERIALS AND METHODS Eighteen consecutive patients who had undergone prone CTC scanning with cushion blocks placed under the chest and hip/thigh to reduce abdominal compression and had confirmed sessile polyp...

Zebrafish genome sequencing project has improved efficiency of positional cloning in zebrafish and traditional chromosome walking by isolating large insert genomic libraries has become a past. However, the genetic principles underlying the positional cloning still form the foundation for current chromosome walking using the genome sequence assemblies and related genomic sequence and clone infor...

OBJECTIVE To assess the effect of uvulopalatopharyngoplasty (UPPP) on positional dependency in patients with obstructive sleep apnea (OSA). DESIGN Retrospective analysis. SETTING Tertiary care university hospital. PATIENTS Ninety-six patients who underwent UPPP because of OSA from June 1, 2004, through July 31, 2008, were included. Both preoperative and postoperative attended full-night p...

OBJECTIVES To compare the physiological and anthropometric characteristics of specific playing positions and positional playing groups in junior rugby league players. METHODS Two hundred and forty junior rugby league players underwent measurements of standard anthropometry (body mass, height, sum of four skinfolds), muscular power (vertical jump), speed (10, 20, and 40 m sprint), agility (L r...