No 7 (2018)
7-11 4395
Abstract
The results of the study of electromagnetic radiation shields based on fibrous material containing carbon black particles are presented. They are designed to protect the human body from the negative effect of electromagnetic waves.
12-17 295
Abstract
Atomic force microscopy was used to estimate the intravascular platelet activation and determine local elastic modulus, adhesion and stiffness of the platelets membrane in patients with end-stage of chronic heart failure with heart ventricle implantation before surgery and intrasurgical: before the heparin injection, after the heparin injection and after neutralization of heparin with protamine.
18-24 1406
Abstract
The study determined the optimal parameters of laser radiation for the destruction of the synovial cysts and vaporization of perianal warts. The study was divided into three phases: computer modeling, experiment, and clinical research. The data obtained at each stage complement each other.
G. T. Maslova,
J. I. Buloichik,
A. P. Zajogin,
A. S. Mavrichev,
L. A. Derzhavets,
A. S. Trubetskaya,
A. V. Titova
25-29 2286
Abstract
The morphology and IR absorption spectra of dried drops of the blood plasma from patients with brain tumors of different grades have been studied. The structural peculiarities of these drops have been revealed. The possibilities to use the structural features of dried drops and of their IR absorption spectra as a source of additional information facilitating correct diagnosis have been assessed. The developed methods enable to control the appointed treatment and to elucidate a dynamics of the developing pathology.
30-35 1436
Abstract
The work is devoted to the development of the theoretical foundations of the processing of measurement results and the algorithm for processing the results for automating measurements for a non-stationary capillary viscometer. The proposed algorithm allows achieving measurement performance and obtaining hemorheological data for diagnostic purposes with a satisfactory degree of accuracy. The results obtained with use of non-stationary capillary viscometer are compared with results achieved with use of rotational viscometer.
36-40 397
Abstract
The influence of the magnetic field (MF) on the optical properties of distilled water was studied. The spectral dependences (300¸700 nm) of the optical density of water (D) at different times (doses) of the preliminary exposure by MF were measured. It is found that the spectral and dose (time) dependences of the optical density have a no monotonic character, which is interpreted by changing the structure of water under the action of MF. It was found that the structural changes in water at low doses (small times) of magnetic action is much greater than at higher doses. It is also shown that the constant MF acts more efficiently on water than the alternating MF.
41-46 282
Abstract
At a non-uniform depth of the surface layer of the human skin, due to the biophysical necessity of normal functioning of the organism, as well as the presence of pathological processes in certain areas of the body, a temperature correction is proposed. It allows to refine the surface temperature, determined by a standard non-invasive thermographic method.
47-51 282
Abstract
The mechanism of biochemical compounds diagnostics using matrices based on optical resonance in closed dielectric microcavities is discuss in this paper. A method for sensor fabrication, interrogation of the optical elements as well as approach for spectral data processing are represented. Experimental data of the protein molecules detection using a matrix sensor in the photonic and photonic-plasmonic configurations is realized.
52-57 379
Abstract
The effective approach to the estimation of athletes coordination abilities based on the reproducibility analysis of the electromyographic patterns of motion tests under the influence of external destabilizing factors is proposed. The following factors are chosen as external perturbing ones: disabling the visual and disabling the sound analyzer of a person. Two coefficients for the quantitative estimation of influence of the visual and sound analyzer on the stability of reproduction of movements with a complex coordination structure are introduced. The recommendations on the practical use of the research results for young athletes are given.
64-68 339
Abstract
A method of acoustic signal analysis with sustain vowel phonation for detection of amyotrophic lateral sclerosis (ALS) is considered. A method for segmentation of the voice signal into periods of the fundamental tone, which is used for evaluation of the jitter and shimmer parameters, is proposed. A comparison of two ALS detectors was performed. The first detector was trained using voice features extracted by the proposed method, while the second detector was trained using features obtained with PRAAT toolkit. The result showed a significant improvement (by 20 %) in the accuracy of detecting ALS disease using the proposed method.
D. S. Tarasov,
M. P. Samtsov,
N. I. Kazachkina,
A. P. Savitsky,
V. V. Zherdeva,
A. O. Savin,
R. D. Zilberman,
V. M. Nasek,
P. T. Petrov
69-73 1441
Abstract
The photosensitizer based on indotricarbocyanine dye distribution in the laboratory animals tissues in vivo have been studied by diffusion fluorescent tomography with FMT 4000 (Perkin Elmer, USA). Nu/Nu mice with tumors fluorescent 3D images were recorded at different time after intravenous introduction of the indotricarbocyanine dye. The indotricarbocyanine dye pharmacokinetics was determined at concentration of 1 mg/kg. It was established that 40-60 minutes after intravenous introduction dye quasistationary value of concentration in the tissues reaches.
74-79 3391
Abstract
Spectral method for image search and discovery of the object with the specified geometric characteristics is analyzed. In comparison with the famous search algorithms described algorithm allows to reduce time of search, computational complexity of digital imaging, simplifies the decoding images. The method can be applied in solving problems such as segmentation, image combining, recognition, determining the distance between objects and phenomena, determining the dynamic characteristics of objects.
M. S. Terekhova,
I. V. Gorudko,
D. V. Grigorieva,
I. V. Semak,
A. V. Sokolov,
O. M. Panasenko,
S. N. Cherenkevich
80-84 384
Abstract
Lactoferrin (Lf) is a biologically important molecule, that accomplishes a number of useful functions in an organism. Lf can be situated in conditions associated with enrichment of reactive halogen species (asthma, infectious disease, heart-disease etс.). It was shown using spectrophotometric and fluorescence methods that HOCl and particularly HOBr lead to significant destruction of Trp residues and iron-binding capacity of Lf.
85-89 402
Abstract
The final element method was used in the hemodynamic large vessel blood flow simulation (as part of the FlowVision program). The bloodstream geometry influence on its hemodynamic modification was studied.
90-95 619
Abstract
Using the example of thermal processes in a resistor, an algorithm for simulating the Joule heating in a COMSOL Multiphysics environment is shown. The choice of materials and the assignment of their properties for electronic products are considered. The process of creating two-dimensional models of temperature distribution in electronic components of medical electronics is shown.
P. V. Kamlach,
A. Y. Sidorovich,
N. I. Kulikov,
V. I. Kamlach,
V. M. Bondarik,
A. V. Churakov,
O. V. Lanina,
N. M. Altavil
96-100 3350
Abstract
A simulator of electrical characteristics of adipose tissue with lumped parameters in a magnetic field was developed. Studies have been carried out to determine the parameters of elements with lumped parameters.
N. V. Belko,
M. P. Samtsov,
G. A. Gusakov,
A. P. Lugovski,
A. A. Lugovski,
V. A. Parkhomenko,
E. S. Voropay
101-105 1381
Abstract
A method to create complexes of detonation nanodiamonds with molecules of an indotricarbocyanine dye was developed. The process of complex formation was shown to depend on the nanodiamond annealing conditions. Nanodiamonds that were vacuum annealed at 750oC display the most effective interaction with the dye molecules. Formation of the complexes was studied with the aid of optical spectroscopy in the visible and infrared regions.
106-111 324
Abstract
The possibilities of the spiral computed tomography to eliminate post-traumatic defects and deformations of the linear and geometric parameters of individual implants are studied. Set of criteria for assessing the orbital data is determined. Criteria allow to determine spatial dimensions of the defect and to build 3D model based on data.
112-117 585
Abstract
The authors propose a method for estimating the expected reliability of applied computer programs for medical computer systems in the early stages of their design. To obtain the expected operational reliability of a computer program, the method uses correction factors that take into account the most important factors determining the initial level of program reliability (before testing begins). Accounting for the impact on the reliability of the program testing procedures are performed using a correction factor that depends on metrics that take into account testing technology, testing time, experience and qualifications of specialists.
118-122 302
Abstract
The consider issues of the functional state of central nervous system and emotion state of operator, subjected by oscillator electromagnetic noise radiation, were developed. The proposed methods, processed and analyzed the electroencephalograms, based on chaotic dynamics, were used. The results of analyzing the electroencephalograms were described.
123-127 2703
Abstract
The construction of infrared cabin developed by the authors for activation of human body functional reserves has been described in the article. The device is supplied with the system of human physiological parameter monitoring. The results of thermal load level produced by infrared cabin on the human cardiovascular system has been presented.
128-132 337
Abstract
The methodical and software for the speech signal analysis at neurological pathologies, in particular, bulbar violations, has been offered. The approach is based on the digital signal processing methods adapted to the problem of speech analysis in clinical medicine. The result is a program developed in MatLab that performs the calculating and plotting spectrogram, histogram, kepstrogramm, frequencies of the main tone for the recorded speech tests. Approbation of the method was performed on the basis of Republican research and clinical center of neurology and neurosurgery and showed the prospects of its use for the diagnosis of bulbar syndrome.
133-138 1321
Abstract
The blood flow in the skin of the temporal region and the functional state of the muscles were investigated using the speckle-optical method. It is shown that the speckle-optical method can be used to objectify the skin blood flow and to evaluate vascular reactivity during breath-holding and hyperventilation. Obtained objective data of the tonic state of the anterior tibial muscle of healthy people can be used as indicators of the norm in the clinic for comparison with the results of examinations of patients with diseases of the motor sphere and the pathology of the neuromuscular apparatus, as well as in sports medicine.
M. M. Mezhennaya,
K. N. Runkevich,
I. V. Kishkevich,
T. V. Kalilec,
S. K. Dzik,
D. V. Likhachevsky,
R. A. Lashchetko
139-143 344
Abstract
Methodical and software has designed to implement the method of speckle visualization. The treatment options has experimentally grounded. They are the most optimal from the point of view of compliance with the space-time resolution and computation time.
144-148 378
Abstract
This article aims to study the application of photoelectric sensor in controlling and monitoring light intensity of lighting system. The sensor used photoelectric with the sensitivity of light in two upper surfaces which are made from mono crystal Si with p - n - p symmetrical bipolar structure.
148-150 311
Abstract
A model based on universal model of a living cell, allowing to investigate calcium accumulation in mitochondria is offered in the article. The presented model is implemented in MatLab system.
151-154 462
Abstract
The possibilities of the device for bio-resonance therapy are described. The device operation is based on influence of electromagnetic waves on the human cells. The additional media is used, that adjusted to the individual characteristic frequency of the human body. The media irradiation is done from the generators of low intensity within the range of 40-75 GHz. The use of the device makes the therapy process easier, increase the effectiveness of it and a doctor may realize such possibilities as medical treatment of allergy disease, tobacco and alcoholic dependences, definition of extra influence of pharmacology means and removing it.
155-158 340
Abstract
The relation between the presence of latent epileptiform process and the change of the instantaneous parameters of the signals of the electroencephalogram is established in the work. The analysis of statistical estimations of instantaneous parameters of signals of multichannel electroencephalogram of healthy subjects and patients with epilepsy is carried out. The most informative frequency range of electroencephalogram rhythms is defined. Information and meaningful statistical evaluation of the instantaneous parameters areproposed. The obtained practical results can be used to create a new method for detecting a hidden epileptiform process.
159-161 334
Abstract
Decreasing of electromagnetic radiation reflection coefficient of aluminum foil after it anodizing was experimentally grounded. It's proposed to use shields based on this foil for manufacting of fabrics for human protection from electromagnetic radiation.
ISSN 1729-7648 (Print)
ISSN 2708-0382 (Online)
ISSN 2708-0382 (Online)
