background and purpose: inserting a nasogastric tube, though a common clinical procedure with widespread use for critically ill patients, can produce unexpected complications so that tube misplacement into the lungs is a potential complication with serious consequences. the reliability of common bedside methods to differentiate between pulmonary and gastric placement has not been acceptable. th...

The spider genus Hahnia C.L. Koch 1841, which includes 94 species in the world (World Spider Catalog 2015), is the largest group of the comb-tailed spider family, Hahniidae Bertkau 1878. However, this genus appears to be polyphyletic. For example, H. xinjiangensis Wang & Liang 1989 (Wang & Liang 1989: 52, figs 1-6) and H. talei (Gertsch 1934) (Gertsch 1934: 13, figs 5-8, 27-28) exhibit patterns...

Epsins belong to the family of highly conserved clathrin-associated sorting proteins that are indispensable for clathrin-mediated endocytosis, but their precise functions remain unclear. We have developed an assay system of budded supported membrane tubes displaying planar and highly curved membrane surfaces to analyze intrinsic membrane curvature preference shown by clathrin-associated sorting...

Microtubule dynamics is largely influenced by nucleotide hydrolysis and the resultant tubulin configuration changes. The GTP cap model has been proposed to interpret the stabilizing mechanisms of microtubule growth from the view of hydrolysis effects. Besides, the growth of a microtubule involves the closure of a curved sheet at its growing end. The curvature conversion from the longitudinal di...

30 EUS Annual Meeting, May 16, 2015, New Orleans, LA Page 20 of 83 ABSTRACT 6 A NOVEL CONCENTRIC TUBE ROBOTIC PLATFORM FOR TRANSURETHAL PROSTATE SURGERY Christopher R. Mitchell, Richard J. Hendrick, Robert J. Webster III, S. Duke Herrell Departments of Urology and Biomedical Engineering, Vanderbilt University Medical Center Introduction: While many consider transurethral resection of the prosta...

Experiments were performed to ascertain the single!phase heat transfer enhancement provided by streamwise curva! ture[ Curved and straight rectangular ~ow channels were fabricated with identical 4[9×1[4 mm cross!sections and 090[5 mm heated lengths in which heat was applied to a 21[2 mm radius concave wall in the curved channel and a side wall in the straight[ Reynolds number ranged from 8999 t...

introduction: the exact measurement of the root canal length is of great importance in root canal therapy. although, determination of the root canal length through radiography is the most common method, recently electronic apex locators are being used to determine working length and decrease the number of radiographs. the purpose of this study was to compare the accuracy of an electronic apex l...

A master element to be employed as a general spatial rod finite element is presented. This spatially curved and pretwisted element can have variable cross-section and variable curvature change. It may also be resting on an elastic foundation. Also, a finite element formulation for a general earthquake analysis of spatial rods is presented. The theoretical foundation has lead to a general-purpos...

Modern surgical procedures involve flexible instruments for both diagnostic and therapeutic purposes. The implementation of flexible instruments in surgery necessitates high motion and force fidelity, and good controllability of the tip. However, the positional accuracy and the force transmission of these instruments are jeopardized by the friction and clearance inside the endoscope, and the co...