منابع مشابه
An Optofluidic Temperature Probe
We report the application of a microfluidic device for semi-contact temperature measurement in picoliter volumes of aqueous media. Our device, a freely positionable multifunctional pipette, operates by a hydrodynamic confinement principle, i.e., by creating a virtual flow cell of micrometer dimensions within a greater aqueous volume. We utilized two fluorescent rhodamines, which exhibit differe...
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Knots appear in a wide variety of biophysical systems, ranging from biopolymers, such as DNA and proteins, to macroscopic objects, such as umbilical cords and catheters. Although significant advancements have been made in the mathematical theory of knots and some progress has been made in the statistical mechanics of knots in idealized chains, the mechanisms and dynamics of knotting in biophysi...
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INTRODUCTION This study aims to assess the difference in nasal patency and resistance to temperature changes objectively and subjectively. METHODS This cross-sectional study involved 50 subjects without nasal obstruction. All these subjects were given a questionnaire to determine nasal obstruction subjectively on a visual analogue scale. Acoustic rhinometry was performed in all these subjects...
متن کاملKnotting probability of a shaken ball-chain.
We study the formation of knots on a macroscopic ball chain, which is shaken on a horizontal plate at 12 times the acceleration of gravity. We find that above a certain critical length, the knotting probability is independent of chain length, while the time to shake out a knot increases rapidly with chain length. The probability of finding a knot after a certain time is the result of the balanc...
متن کاملMultiple knotting of a swan-ganz catheter.
Complications derived from pulmonary artery catheter placement are about 3%-17%,1 from the most frequent and mild (carotid puncture, extrasystoles, etc) to the most severe (pulmonary artery rupture, pulmonary infarction, ventricular fibrillation, atrioventricular block, etc), and rare ones, such as intravascular catheter knotting, located preferentially in the right atrium (RA) or right ventric...
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ژورنال
عنوان ژورنال: Anaesthesia
سال: 2013
ISSN: 0003-2409
DOI: 10.1111/anae.12295