29 research outputs found
TAIGA -- an advanced hybrid detector complex for astroparticle physics and high energy gamma-ray astronomy
The physical motivations, present status, main results in study of cosmic
rays and in the field of gamma-ray astronomy as well future plans of the
TAIGA-1 (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy)
project are presented. The TAIGA observatory addresses ground-based gamma-ray
astronomy and astroparticle physics at energies from a few TeV to several PeV,
as well as cosmic ray physics from 100 TeV to several EeV. The pilot TAIGA-1
complex is located in the Tunka valley, ~50 km west from the southern tip of
the lake Baikal.Comment: Submission to SciPost Phys. Proc., 10 pages, 2 figure
Investigation of heat transfer in a liquid metal upflow in the MHD-channels applied to tokamak reactor blanket module
Investigation of hydrodynamics and heat transfer at liquid metal downflow in a rectangular duct in a coplanar magnetic field
Investigation of Heat Transfer of Liquid Metal in a Rectangular Vertical Channel in a Coplanar Magnetic Field Applied for Cooling System of a Tokamak Reactor
Ultrasonic tracking of common sole juveniles (Solea vulgaris Quensel, 1806) in a saltmarsh: methods and fish response to some environmental factors
Ultrasonography of the larynx for diagnosis of the vocal folds mobility impairment
Purpose. To study a possibility of performance and diagnostic accuracy of ultrasonography (US) of a larynx in identification of motility disorders of VF (vocal folds) in comparison with the laryngoscope which is traditionally applied for this purpose.
Materials and methods. According to the objectives of the study, two patient groups were formed. In first group of patients (n = 466) we studied acceptability of ultrasonografy to discriminate various laryngeal structures. In second group of patient (n = 432) we evaluated the diagnostic accuracy of ultrasonography in point of detection of vocal muscles paresis.
Results. Laryngeal structures were available to examination by ultrasound (without taking in account age and sex) in 92.7% of patients. Two patterns have been identified in the course of this part of the study: deterioration of visibility of the vocal folds with increasing patient age and better visibility of the vocal folds in women than in men. According to the comparative analysis, ultrasonography accuracy rate (in those patients who had had clearly visible vocal folds during ultrasonography) did not differ from that during videolaryngoscopy.
Conclusion. During the conducted research it was found that the US of the larynx is an effective and perspective method for detection of a paresis of VF with sensitivity and specificity 93,55% and 100% respectively. Among those patients whoapos; VF are available to ultrasound evaluation the accuracy of method is comparable with a videolaryngoscopy and can be used with success in daily work of units of endocrine surgery