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In situ dynamic rheological analysis of raw yam tubers: a potential phenotyping tool for quality evaluation.
J Sci Food Agric
June 2024
CIRAD, Montpellier, France.
Background: Most rheological analyses in yam have been done on starch gels, which requires starch extraction from the tubers. In situ rheology bypasses the need of starch extraction and relies on the original cell structure and complex matrix organization under stress or strain. Dynamic rheological properties of tuber from 16 accessions belonging to four yam species (Dioscorea rotundata, D.
View Article and Find Full Text PDF[CORRELATIONS BETWEEN EEG AND RHEOGRAPHIC INDICES OF CEREBRAL BLOOD FLOW IN CHILDREN ON NORTH-EAST OF RUSSIA].
Ross Fiziol Zh Im I M Sechenova
September 2015
The purpose of the work was an estimation of correlations between EEG spectral parameters and rheoencephalogram (REG) indicators of cerebral blood flow (CBF) in the group of children of 7-18 years old living in the North-East of Russia. Well-known data were confirmed about age-dependent EEG and REG-CBF indicators dynamics. It was not revealed strong coordination between EEG and REG age-dependent changes in this period of life.
View Article and Find Full Text PDFInteraction of hypocapnia, hypoxia, brain blood flow, and brain electrical activity in voluntary hyperventilation in humans.
Neurosci Behav Physiol
September 2008
Interinstitute Laboratory for Comparative Ecological-Physiological Studies, I. M. Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, 44 M. Torez Prospekt, 194223 St. Petersburg, Russia.
Changes in various physiological measures in voluntary hyperventilation lasting three minutes or more in humans were studied and compared. Three-minute hyperventilation, in which the rate of external ventilation increased by an average factor of 4.5-5, produced similar phasic changes in central and brain hemodynamics.
View Article and Find Full Text PDF[Interrelations of hypocapnia, hypoxia, cerebral blood flow and electrical activity of the brain under voluntary hyperventilation in humans].
Ross Fiziol Zh Im I M Sechenova
September 2007
Changes of different physiological parameters in human caused by hyperventilation of 3-min and longer duration were investigated and correlated. It was found that during 3-min hyperventilation, resulting in 4.5-5 fold increase of the respiration velocity, similar phasing changes of the central and cerebral haemodynamics occurred.
View Article and Find Full Text PDFElectromagnetic diathermia: a lymphoscintigraphic and light reflection rheographic study of leg lymphatic and venous dynamics in healthy subjects.
Lymphology
March 2000
Department of Rehabilitation Research, Vrije Universiteit Brussel, Belgium.
Because electromagnetic diathermia (ED) has been reported to reduce lymphedema, we opted to examine the effects of ED on leg venous and lymph dynamics in healthy subjects. To examine lymph flow, we performed lymphangioscintigraphy (LAS) in 10 subjects without leg edema and used static images at the injection site and at the inguinal region for "control data." Later, we applied ED (2450 MHz, 200W) and then repeated the LAS using the same dosage and volume.
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