Медицинские технологии список научных статей
-
Software development for estimation of optical clearing agent’s diffusion coefficients in biological tissues
The study of chemical diffusion in biological tissues is a research field of high importance and with application in many clinical, research and industrial areas. The evaluation of diffusion and viscosity properties of chemicals in tissues is necessary to characterize treatments or inclusion of...
2015 / P. Peixoto, L. Oliveira, M.I. Carvalho, E. Nogueira, V.V. Tuchin -
Statistical analysis of the parameters of the optic disk image
In recent time much attention is payed to the computer analysis of the optic disc (OD) images, aimed at extracting the objective statistical characteristics of the OD image. In the present paper we describe a computer program that allows the determination of the mean colour indices, their variance, ...
2015 / V. Bakutkin, V. Gorelov, Y. Zayko -
Mathematical model оf laser radiation femtosecond interaction with human skin
We present a mathematical model of linear and nonlinear processes that occur under the action of femtosecond laser radiation on the cutaneous covering. The analysis is carried out and the analytical solution of the set of equations describing the dynamics of the electron and atomic subsystems is...
2016 / Pavel Rogov, Viktor Bespalov -
Special Issue: Laser and optical technologies in biomedicine and ecology2016 / Aleksandra M. Mayorova, Valeriy P. Zakharov
-
The use of laser dynamical speckle interferometry in the study of cellular processes
A speckle interferometry setup is mounted, tested and approved that allows the analysis of intracellular processes with large optical magnification. For different part of the cell, the dependences of speckle image correlation coefficients upon time are found. It is shown that the method allows the...
2016 / A. P. Vladimirov, I. A. Novoselova, Y. A. Mikhailova, A. A. Bakharev, D. I. Yakin -
Ex vivo investigation of glycerol diffusion in skin tissue
The change of optical parameters of rat skin ex vivo under the action of aqueous 30%, 50%, 60%, 70%, 85%, and 100% glycerol solutions has been experimentally studied. The analysis of kinetics of the change of the studied parameters has allowed the estimate of the diffusion coefficient dependence...
2016 / Vadim D. Genin, Daria K. Tuchina, Ali Jaafar Sadeq, Elina A. Genina, Valery V. Tuchin, Alexey N. Bashkatov -
Diagnostics of liquid properties by the example of bioorganic solutions
Two methods of monitoring the structure modifications of protein solutions are considered: using the speckle patterns in real time and using crystallograms. It is shown that the proposed methods of image processing correlate with each other and allow the tracing of the qualitative structure...
2016 / Alexander Malov, Anna Neupokoeva, Alexandra Sambyalova -
Choosing the probe radiation wavelengths for noninvasive monitoring of haemoglobin in blood
The goal of our study was to estimate the accuracy of measuring the blood haemoglobin concentration by means of the pulse CO-oximetry, depending on the probe radiation wavelength. Revealing the combinations of wavelengths, optimal for minimising the measurement error, will allow the formulation of...
2016 / Igor L. Davydkin, Natalia S. Kozlova, Vadim N. Koniukhov, Tatiana P. Kuzmina, Elizaveta V. Mordvinova -
Destruction of a spherical polystyrene microparticle in pulsed ultraviolet beam for micromanipulation purpose
The modelling of heating a spherical polystyrene microparticle by the laser beam having the wavelength 355 nm and varying spot size is described. The simulation results are presented for two different values of the beam spot radius. Nature experiments are reported aimed at measuring the velocity of ...
2016 / Roman V. Skidanov, Vadim S. Vasiliev -
Craquelure structure of protein film modification under the laser radiation of different spectral range action
A craquelure structure of protein film as indicator of macromolecule state is discussing. Craquelure is a network of fine cracks or crackles on the surface of a painting, caused chiefly by shrinkage of paint film or varnish. The actions of laser radiation in the red and green spectral region on the ...
2016 / Alexander N. Malov, Anna V. Neupokoeva, Evgeniya M. Kudryashova -
Optical diffraction tomography techniques for the study of cell pathophysiology
Three-dimensional imaging of biological cells is crucial for the investigation of cell biology, providing valuable information to reveal the mechanisms behind pathophysiology of cells and tissues. Recent advances in optical diffraction tomography (ODT) have demonstrated the potential for the study...
2016 / Kyoohyun Kim, Jonghee Yoon, Seungwoo Shin, Sangyun Lee, Su-A Yang, Yongkeun Park -
Diffuse optical mammotomography: state-of-the-art and prospects
The principles of diffuse optical tomography (DOT) of tissues are presented. The DOT capabilities as a method of breast cancer diagnostics are analysed. The state-oftheart of the DOT instrumentation and methodological base in application to solving the mammography problems are described. The...
2016 / Alexander B. Konovalov, Elina A. Genina, Alexey N. Bashkatov -
An improved algorithm of structural image reconstruction with rapid scanning optical delay line for Optical Coherence Tomography
A new algorithm of structural image reconstruction in Optical Coherence Tomography is described. The modified rapid scanning optical delay (RSOD) line, low numerical aperture, small angle raster scanning with consecutive averaging and multilevel digital filtering have been used to obtain high...
2016 / Denis A. Petrov, Saif N. Abdulkareem, Kamal E. S. Ghaleb, Sergey G. Proskurin -
Зрительная сенсорная система - нейрофизиологические механизмы (лекция для студентов)
В лекции рассматривается проблематика строения и функционирования сетчатки, наружного коленчатого тела, коры головного мозга зрительной сенсорной системы. Анализируется содержание фотохимических реакций, лежащих в основе генерации рецепторных потенциалов, обеспечивающих активацию ганглиозных клеток ...
2014 / Правдивцев Виталий Андреевич, Смирнов Виктор Михайлович, Евсеев Андрей ВикторовичВАК -
Возможности применения систем суточного мониторирования гликемии в оценке компенсации углеводного обмена у детей и подростков, больных сахарным диабетом 1 типа
В исследовании показаны возможности суточного мониторирования гликемии в оценке компенсации углеводного обмена и дальнейшей коррекции инсулинотерапии. Проводился суточный мониторинг гликемии детям и подросткам, страдающим сахарным диабетом 1 типа в стадии компенсации и субкомпенсации по уровню...
2013 / Демяненко Александра Николаевна, Алимова Ирина ЛеонидовнаВАК -
Свойства нервных центров. Принципы координационной (интегративной) деятельности. Рефлекс как операционный механизм функциональной системы (лекция для студентов)
В лекции рассматриваются проблематика свойств нервных центров, дискуссионные вопросы координационной (интегративной) деятельности нервных центров. Отмечается, что рефлекторный акт является операционным механизмом обеспечения адаптивных реакций нервных центров, функционирующих в составе целостных...
2013 / Правдивцев Виталий Андреевич, Евсеев Андрей Викторович, Брук Татьяна МихайловнаВАК -
Антибактериальное действие низкоинтенсивного лазерного излучения с различной длиной волны
В статье приведены данные экспериментов in vitro по изучению воздействия низкоинтенсивного лазерного излучения различного спектрального диапазона на микроорганизмы, возбудители хирургической инфекции. Установлено, что низкоинтенсивное лазерное излучение оказывает антибактериальное действие на...
2015 / Касумьян А.С., Азовскова О.В. -
The use of parallel programming methods for time-frequency analysis of geoacoustic emission signals
It has been shown in previous studies that the sparse approximation methods with combined dictionary and refining have been used for this purpose. The main disadvantage of this method is its computational expensive. The realization of parallel matching pursuit algorithm has been considered in this...
2014 / Kim Alina Alexandrovna -
The technique of increase the efficiency of learning neural Kohonen maps for recognition of perturbations geoacoustic emission
This work is dedicated to technique of training Kohonen maps on the example of geoacoustical signal in the subrange 1500-6000 Hz. Describes the parameters of learning the Kohonen maps to classify anomalies in geoacoustical signal on different types.
2014 / Shadrin Alexander Vitalyevich -
Вклад лазероиндуцированной газопарожидкостной динамики в механизм эндовенозной лазерной облитерации
Цель исследования экспериментальное обоснование механизма эндовенозной лазерной облитерации (ЭВЛО), основанного на лазероиндуцированной конвективной теплоотдаче крови венозным стенкам, обусловленной ее кипением, как доминирующего процесса в сложном механизме теплообмена при эндовазальных лазерных...
2016 / В.М. Чудновский, В.И. Юсупов, О.Л. Захаркина, Н.Ю. Игнатьева, В.С. Жигарьков, М.Н. Яшкин, В.Н. БаграташвилиScopusВАКESCI