Publications by authors named "Vishniakov G"

The paper describes results of experimental studies of changes in the refractive index of the live cell (human erythrocyte) substance. The measurements were carried out using automated interference microscope. Oscillations of the refractive index were detected with the amplitude 5-10% and period 1 x 10(3)-3 x 10(3).

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An optical method for measuring the birefringence of muscle fibers was developed, which is realized on an automated Linnick interferometer microscope equipped with a laser. It was shown that the method has some advantages over the methods based on measurements of the intensity of light passing through a crossed polarizer, an analyzer, and a fiber (light polarized microscopy). The method involves direct phase measurements of optical path length at the parallel and perpendicular orientations of the polarization plane of probing radiation.

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Two-dimensional maps of birefringence in sarcomers of a single fiber of rabbit m.psoas were obtained by an automated interference microscope developed at our laboratory. The changes in birefringence of muscle fibers reflect the movement of myosin cross-bridges.

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A new method of automatized quantitative interferometry of skeletal muscle fibers was developed for the investigation of birefringence. A device based on the Linnic microscope was constructed to obtain phase images, which are two-dimensional pictures of birefringence. For the first time, two-and-three-dimensional maps of both total birefringence and birefringence for individual sarcomeres in the central part of muscle fiber were visualized using large databases.

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Laser interferometry is proposed for accurate measurements of the external parameters and fixation of the relief of human skull surface. This method creates a detailed three-dimensional computer model of the object of investigation, which can be used in automated systems of personality identification based on investigation of the skull and life-time photos. Further development of the method opens new vistas in automation of the trassological and ballistic identification.

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Social reforms and the technological revolution lead to changes in the environment and human habitat, which deteriorate the ecology in the majority of cases. Blood system in general, specifically, the peripheral blood represent one most sensitive system of the body, reflecting the level of adverse exposures and reaction of the organism to these exposures. The interference microtomographer permits measurements of the spatial structure of optically transparent three-dimensional cytological specimens (blood cells).

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