scholarly journals Low Intensity Microwave Fields and Radiation and Their Interaction with the Human Body

2022 ◽  
Vol 3 (2) ◽  
Author(s):  
Oleksiy Yanenko ◽  
Kostiantyn Shevchenko ◽  
Sergiy Peregudov ◽  
Vladyslav Malanchuk
Keyword(s):  
Human Body ◽  
Electromagnetic Compatibility ◽  
Building Materials ◽  
Soft Tissues ◽  
Human Organism ◽  
Formation Mechanisms ◽  
Intensity Level ◽  
Microwave Range ◽  
Low Intensity ◽  
Microwave Signals

Sources of low-intensity microwave signals formation, which affect the metabolism processes when they interact with human body, are considered in the article. It’s noticed that increasing intensity level of the technogenic signals in environment significantly exceeds natural electromagnetic fields and radiation (EMR). The peculiarities of the registration and measurement of low-intensity signals parameters of the microwave range are considered. The processes of the interaction of the microwave signals and human organism are analyzed. Formation mechanisms of the positive and negative microwave flows of the electromagnetic radiation are revealed. Particularly, possible formation mechanism of the microwave EMR fluxes of implants in the human body. The results of the experimental study of the EMR signals levels of the objects contacting with human body, partly materials for bone defects replacement and soft tissues regeneration so as materials for physiotherapy, are given. The use of the term “electromagnetic compatibility” for materials which contacting the human body, is proposed. The expediency of its use is proven. Microwave properties of materials for clothes, minerals and building materials, which can affect the human body and environment, have been also studied.

On the Application of Anti-Seismic & Waste-Recyclable Foamed Concrete Cast-in-Place Wall in Architecture

2013 ◽  
Vol 671-674 ◽  
pp. 1524-1527
Author(s):  
Hui Fen Hu
Keyword(s):  
Production Process ◽  
Building Materials ◽  
Low Intensity ◽  
Industry Standards ◽  
Foamed Concrete

Characterized by the strengths of earthquake proof and waste utilizing, the foamed concrete cast-in-place wall, one of the newest building materials, have been widely used in the architectures within the earthquake-prone areas. This paper conducts research into the problems of the foamed concrete cast-in-place wall during its application such as defective industry standards, low intensity, poor producing condition, etc. Then it analyzes countermeasures that could be taken to promote the development of the foamed concrete cast-in-place wall including completing relevant systems, improving intensity by altering additives, perfecting production process and improving production equipments, etc.

scholarly journals Wavelet introscopy of human organism bionets

2021 ◽  
pp. 63-72
Author(s):  
Gennady M. Aldonin ◽  
◽  
Vasily V. Cherepanov ◽  
Keyword(s):  
Functional State ◽  
Human Body ◽  
Dynamic Models ◽  
Golden Ratio ◽  
The State ◽  
The Body ◽  
Human Organism ◽  
Fractal Structures ◽  
Self Similar ◽  
The Creation

In domestic and foreign practice, a great deal of experience has been accumulated in the creation of means for monitoring the functional state of the human body. The existing complexes mainly analyze the electrocardiogram, blood pressure and a number of other physiological parameters. Diagnostics is often based on formal statistical data which are not always correct due to the nonstationarity of bioprocesses and without taking into account their physical nature. An urgent task of monitoring the state of the cardiovascular system is the creation of effective algorithms for computer technologies to process biosignals based on nonlinear dynamic models of body systems since biosystems and bioprocesses have a nonlinear nature and fractal structure. The nervous and muscular systems of the heart, the vascular and bronchial systems of the human body are examples of such structures. The connection of body systems with their organization in the form of self-similar fractal structures with scaling close to the “golden ratio” makes it possible to diagnose them topically. It is possible to obtain detailed information about the state of the human body’s bio-networks for topical diagnostics on the basis of the wavelet analysis of biosignals (the so-called wavelet-introscopy). With the help of wavelet transform, it is possible to reveal the structure of biosystems and bioprocesses, as a picture of the lines of local extrema of wavelet diagrams of biosignals. Mathematical models and software for wavelet introscopy make it possible to extract additional information from biosignals about the state of biosystems. Early detection of latent forms of diseases using wavelet introscopy can shorten the cure time and reduce the consequences of disorders of the functional state of the body (FSO), and reduce the risk of disability. Taking into account the factors of organizing the body’s biosystems in the form of self-similar fractal structures with a scaling close to the “golden ratio” makes it possible to create a technique for topical diagnostics of the most important biosystems of the human body.

scholarly journals Fracture Nonunion Treated with Low-Intensity Pulsed Ultrasound and Monitored with Ultrasonography: A Feasibility Study

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Peizhen Zhang ◽  
Pengdong Li ◽  
Shihai Liao ◽  
Xuan Li ◽  
Wufan Chen ◽  
...  
Keyword(s):  
Fracture Healing ◽  
Bone Fracture ◽  
Soft Tissues ◽  
Callus Formation ◽  
Distal Tibia ◽  
Pulsed Ultrasound ◽  
Low Intensity Pulsed Ultrasound ◽  
Low Intensity ◽  
Cord Injury ◽  
Fracture Nonunion

The positive effect of low-intensity pulsed ultrasound (LIPUS) on bone fracture healing has been proved. However, during the period of LIPUS therapy, it is undetermined whether LIPUS promotes the formation of heterotopic ossification (HO), which usually occurs in muscle tissues after trauma such as bone fracture and spinal cord injury. Here, we used 6-week LIPUS therapy in a 42-year-old Chinese male patient with a fracture nonunion in combination with ultrasonography for monitoring fracture healing and HO formation. After the LIPUS therapy, the mineralized bone formation in the area of defect of the distal tibia was presented in an ultrasound image, which was consistent with the outcome of plain radiography showing callus formation and the blurred fracture line in the area exposed to LIPUS. In addition, ultrasound images revealed no evidence of HO development within soft tissues during the period of LIPUS therapy. This study suggests that ultrasonography is a potential tool to guarantee the performance of LIPUS therapy with monitoring HO formation. Easy to use, the integration of the handheld ultrasound scanner and the ultrasonic therapeutic apparatus is entirely dedicated to help orthopedists make high-quality care and diagnosis.

ELECTRO-OPTIC MICROWAVE-LIGHTWAVE CONVERTERS UTILIZING PATCH ANTENNAS WITH ORTHOGONAL GAPS

2012 ◽  
Vol 21 (01) ◽  
pp. 1250001 ◽  
Author(s):  
YUSUF NUR WIJAYANTO ◽  
HIROSHI MURATA ◽  
YASUYUKI OKAMURA
Keyword(s):  
Power Supply ◽  
Optical Waveguides ◽  
Electromagnetic Compatibility ◽  
Optical Modulation ◽  
Patch Antennas ◽  
Electro Optic ◽  
Wireless Signal ◽  
Microwave Signals ◽  
External Power ◽  
Fiber Link

We propose a new electro-optic microwave-lightwave converter using two orthogonal optical waveguides and patch antennas embedded with two orthogonal gaps. Wireless microwave signals can be received, separated and converted directly to lightwave signals through optical modulation using the proposed device. This device operates with no external power supply and with low microwave distortion. In addition, it enables us to measure the magnitude, phase and polarization of the wireless signal simultaneously. Experimental demonstrations of the device were presented at the operation frequency of 26 GHz. The device can be applied for electromagnetic compatibility test in the radio-over-fiber link.

scholarly journals Effect of exercise and humid heat upon pulse rate, blood pressure, body temperature, and blood concentration

1920 ◽  
Vol 91 (636) ◽  
pp. 111-126 ◽  
Keyword(s):  
Blood Pressure ◽  
High Temperature ◽  
Body Temperature ◽  
Human Body ◽  
Temperate Climate ◽  
Human Organism ◽  
Atmospheric Conditions ◽  
Hot Climate ◽  
The Tropics ◽  
Short Time

The effect of exercise on the human body has been made the subject of much study at different times. Researches have been carried out under atmospheric conditions such as prevail in different parts of Northern Europe, and they have been extended in a few instances to the effects of high temperature and humidity upon the human body. In the latter observations the conditions such as high temperature and varying humidity were produced by artificial means only, and general deductions as to the influence of an actual tropical climate upon the human organism cannot be safely drawn from them. In these experiments the subjects were living in a temperate climate, were exposed to heat and humidity for a short time only, and left the hot chamber at the end of the experiment for an atmosphere of coolness and comfort; in the tropics, on the other hand, the inhabitants are continuously exposed to heat and humidity without respite. Conclusions of real value can thus be drawn only from observations actually carried out in a hot climate, and systematic work in this direction is still lacking. Although observations have been made in the tropics on body temperature, blood pressure, pulse and respiration rate, and metabolism, yet their object has only been to obtain normal standards for the tropics for comparison with those of Europe.

scholarly journals Lipoma of the sigmoid colon

2013 ◽  
Vol 70 (3) ◽  
pp. 319-321 ◽  
Author(s):  
Matilda Djolai ◽  
Bojana Andrejic ◽  
Dejan Ivanov
Keyword(s):  
Adipose Tissue ◽  
Case Report ◽  
Gastrointestinal Tract ◽  
Sigmoid Colon ◽  
Human Body ◽  
Soft Tissues ◽  
Benign Tumor ◽  
Extensive Resection ◽  
One Year ◽  
Histological Confirmation

Introduction. Lipoma is a benign tumor of adipose tissue, the most common tumor of the human body soft tissues. As such, it can be found almost anywhere in the human body including the gastrointestinal system (incidence below 0.5%), but rarely in the sigmoid colon. Case report. This is a case report on symptomatic polyp of the sigmoid colon, which after one year, at control colonoscopy, caused suspicion to malignancy. Endoscopically diagnosed polipoid lesion was laparoscopically removed. The pathohistological diagnosis determined benign, submucosal, incapsulated lipoma of the sigmoid colon. Conclusion. Although lipomas of the gastrointestinal tract are rare, this case clearly indicates that we should not prematurely and without histological confirmation of malignancy do more extensive resection for a suspected malignancy.

Elimination of persistent toxicants from the human body

2010 ◽  
Vol 30 (1) ◽  
pp. 3-18 ◽  
Author(s):  
Stephen J Genuis
Keyword(s):  
Human Body ◽  
Body Burden ◽  
Chemical Compounds ◽  
Clinical Aspects ◽  
Human Organism ◽  
Potential Health ◽  
Health Measures ◽  
Chemical Agents ◽  
Endocrine Disrupting ◽  
Neurological Processes

There is compelling evidence that various chemical agents are important determinants of myriad health afflictions — several xenobiotics have the potential to disrupt reproductive, developmental, and neurological processes and some agents in common use have carcinogenic, epigenetic, endocrine-disrupting, and immune-altering action. Some toxicants appear to have biological effect at miniscule levels and certain chemical compounds are persistent and bioaccumulative within the human body. Despite escalating public health measures to preclude further exposures, many people throughout the world have already accrued a significant body burden of toxicants, placing them at potential health risk. As a result, increasing discussion is underway about possible interventions to facilitate elimination of persistent toxicants from the human organism in order to obviate health affliction and to potentially ameliorate chronic degenerative illness. An overview of the clinical aspects of detoxification is presented with discussion of established and emerging interventions for the elimination of persistent xenobiotics. Potential therapies to circumvent enterohepatic recirculation and a case report highlighting a clinical outcome associated with detoxification are also presented for consideration.

scholarly journals Temperature of representative areas of the breast department of the vegetative nervous system as the index of human organism functional state

2017 ◽  
Vol 23 (2) ◽  
pp. 27-33
Author(s):  
S. Goncharevskyi ◽  
M. Makarchuk ◽  
V. Martynyuk
Keyword(s):  
Myocardial Infarction ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Functional State ◽  
Human Body ◽  
The Body ◽  
Human Organism ◽  
Autonomic Nervous ◽  
Significant Difference ◽  
The Right

Almost all processes in the human body in one way or another connected with the autonomic nervous system. That's why it is real to evaluate the functional state of the person by temperature characteristics of representative points of the autonomic nervous system. Location and information of these points are confirmed by fundamental research. However, simply measuring the temperature at some points may not be sufficient to establish any systematic changes in the human body. The establishment of such changes requires systematic assessment of interdependent significant relationships between these parameters.The main aim of our research was to study effects of myocardial infarction in the thoracic region of the autonomic nervous system. The temperature of representative areas of the thoracic autonomic nervous system we measured by infrared thermometer (Medisana FTO D-53340 , with an accuracy of 0.1 degree Celsius). Statistical analysis was conducted in the packet Statistics 10. The presence of a difference in the temperature coefficients of representative areas (p<0,05). For the left side of the spine characterized by a difference in Th1–Th5 segments, which confirms their diagnosis: Th1 – 0,931,12 (control) and -0,797,49 (experiment), Th2 – 1,571,12 and -0,486,70, Th3 – 1,582611,12325 and -0,663,36, Th4 – 0,85913 0,92611 and -1,74,64, Th5 – 0,923480,75469 and-1,615,73 respectively. For the right side of the thoracic spines: Th6 – 0,850,73 (control) and -0,797,49 (experiment), Th7 – -1,000,79 and -1,370,69, Th8 – -0,960,73 and -0,990,68, Th9 – -0,120,64 and -0,380,83, Th10 – -0,921,14 and -1,031,00, Th11 – -1,691,05 and -1,861,06, Th12- -1,651,15 and -1,961,12 respectively. We found that myocardial infarction is manifested in the thoracic spine. In an experimental group there is significant difference of temperature in all segments. We can also notice asymmetry of temperatue between the right and left side of the spine. In the test group there are a deviation from the normal temperature in the first five thoracic segments on the left side, which confirms their diagnosis. On the right side of the spine there are a deviation in the last seven segments, which may indicate the compensatory mechanisms of regulation of the system. We can observe the temperature asymmetry, which in long-term exposure can negatively affect to the body.

scholarly journals The Danger of Toxic Substances

10.14311/346 ◽  
2002 ◽  
Vol 42 (3) ◽  
Author(s):  
M. V. Jokl
Keyword(s):  
Carbon Monoxide ◽  
Nitrogen Oxides ◽  
Cigarette Smoke ◽  
Building Materials ◽  
Human Organism ◽  
Toxic Substances ◽  
Air Filtration ◽  
Effective Measure ◽  
Volatile Organic ◽  
Sunny Weather

Toxic (harmful) gases enter building interiors partly from outdoors (sulfur oxides, nitrogen oxides, carbon monoxide, ozone, smog and acid rains), partly originate indoors - as a result of human activity (carbon monoxide, tobacco smoke, nitrogen oxides, ozone, hydrocarbons) and also emanate from building materials (formaldehyde, volatile organic compounds). The human organism is most often exposed to cigarette smoke (especially nonsmokers are endangered, as cigarette smoke devastes the pulmonary and cardiovasculary system) and to smog entering from outdoors, paradoxically during sunny weather. Preventing toxic production is the most effective measure, e.g., by coaxing to coax smokers out of "civilized" areas, by using energy rationally (i.e., conserving energy), to turn to pure fuels and to increase energy production by non-combustion technologies. Besides ventilation and air filtration, the toxic gases can be removed to a remarkable extent by plants (by which decay the substances into nontoxic gases), and by air ionization. Review article.

Sign in / Sign up

Export Citation Format

Share Document