Publications by authors named "S N Tsyuryupa"

3 Publications

  • Page 1 of 1

Acoustical Method of Whole-Body Hydration Status Monitoring.

Acoust Phys 2016 Jul 22;62(4):514-522. Epub 2016 Jul 22.

Appalachian State University, Boone, NC, 28608-2071, USA.

An acoustical handheld hydration monitor (HM) for assessing the water balance of the human body was developed. Dehydration is a critical public health problem. Many elderly over age of 65 are particularly vulnerable as are infants and young children. Given that dehydration is both preventable and reversible, the need for an easy-to-perform method for the detection of water imbalance is of the utmost clinical importance. The HM is based on an experimental fact that ultrasound velocity in muscle is a linear function of water content and can be referenced to the hydration status of the body. Studies on the validity of HM for the assessment of whole-body hydration status were conducted in the Appalachian State University, USA, on healthy young adults and on elderly subjects residing at an assisted living facility. The HM was able to track changes in total body water during periods of acute dehydration and rehydration in athletes and day-to-day and diurnal variability of hydration in elderly. Results of human studies indicate that HM has a potential to become an efficient tool for detecting abnormal changes in the body hydration status.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1134/S1063771016040175DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5773122PMC
July 2016

Soft tissue elastometer.

Med Eng Phys 2008 Mar 23;30(2):206-12. Epub 2007 Mar 23.

Artann Laboratories, Trenton, NJ, USA.

We have developed a device entitled the 'Tissue Elastometer' (TE) for evaluating the Young's modulus of soft tissues. Soft tissue specimens are compressed between the object plate of an electronic balance and a linearly actuated indenter with a small rounded tip. The hardware of the device was designed such that a deformation model for semi-infinite media is applicable for calculating the Young's modulus of test specimens from their collected force-displacement data. Force-elongation measurements were performed on long strips of cured silicone mixtures to produce calibrated, tissue-mimicking test samples for the TE in a Young's modulus range of 10-400 kPa. When tested with the TE, the Young's moduli of the silicone samples demonstrated accuracy to within 1-10% of their calibrated values. Testing on excised tissue samples (fresh store-bought poultry breast; bovine liver, kidneys, hind shanks; porcine) was also performed, and a repeatability of elasticity measurements was demonstrated in the range of 8-14%. Results indicate that the TE can be effectively used in laboratory and clinical environments to evaluate the elasticity modulus of tissues.
View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.medengphy.2007.02.007DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2581446PMC
March 2008

Effect of enhanced concentration of CO2 on transpiration and kinetic parameters of photosynthetic CO2 gas exchange in sugar beet grown at different concentrations of nitrate.

Dokl Biol Sci 2002 May-Jun;384:260-2

Institute of Basic Problems in Biology, Russian Academy of Sciences, Pushchino, Moscow Oblast, 142292 Russia.

View Article and Find Full Text PDF

Download full-text PDF

Source
http://dx.doi.org/10.1023/a:1016090129397DOI Listing
March 2003
-->