P. Dohnal

An Experiment to Prove the Effect of Low-Level Magnetic Fields Resulting from Ionospheric Changes on Humans

Abstract The investigation presented in the paper was performed in the laboratories of the Department of Theoretical and Experimental Electrical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, between April 22 and June 26, 2014. We examined a homogeneous sample of male and female participants comprising a total of 49 persons aged 19 to 26. The time required for the measurement of psychophysiological parameters corresponded to 19 minutes, encompassing five stages: Basic (5 mins.), Color (2 mins.), Rest (5 mins.), Math (2 mins.), and Rest (5 mins.). All the measuring cycles were carried out using a BioGraph Infiniti device (Thought Technology, Ltd.). Generally, the impact of the environment upon living organisms constitutes a crucial problem examined by today’s science. In this context, the present article describes the results of an investigation focused on ionosphere parameter variation and its role in the basic function of the nervous system. The discussed research concentrates on the measurement and detection of changes in the region of very low electromagnetic field frequencies; the authors introduce and verify related theoretical and experimental procedures to define the effects that influence brain activity and the cardiovascular system.

Methods for the measurement and ultra-low-frequency evaluation of geomagnetic and ionospheric changes

We present an overview of techniques for the sensing of geomagnetic field changes within the ultra-low-frequency band (1-30 Hz). Variations in the electromagnetic and chemical structure of Earths surface can lead to altered signals in the frequency region of 6-8 Hz, which is characteristic of the alpha waves of an active brain. In the given context, diverse positive and negative factors influencing the biological system of the human body have been analyzed by research institutes worldwide; our contribution consists in a TM antenna and an evaluation system, both designed using the set of methodologies described within this article.

Diagnosing brain tumors with MRI

The present paper discusses the improvement of accuracy in overall diagnostics related to brain tumors. The proposed measures include, for example, maximizing the use of image modifications and decreasing the radiation doses received by a patients body. The wider project is centered on the diagnostics of pathological tissues in the brain; it describes and compares the classification and identification of particular brain tumors.

Passive optical detection of moving targets

The paper discusses the passive optical detection of small-sized targets moving through the air at overhead levels. An experimental module for a standalone locator to operate in real time is presented together with methods usable within the actual implementation of the underlying designer project. Within the supporting tests, an algorithm was developed to detect small particles in a video sequence, and every image of the sequence was properly processed. The applied processing tools or methods included shape detection, filtering, statistic image analysis, and algorithms for the detection of moving objects; the images with recorded movement were stored on an SD card. The resolution of the moving object to be detected can correspond to a value as low as one pixel. Respecting the scope of the analyzed problems, the authors describe in detail not only the entire detection algorithm but also the results obtained from the test algorithm and the actual device.

The response of the human organism to ionospheric changes

The impact of the environment upon living organisms constitutes a crucial problem examined by todays science. Detailed examination of the overall influence of environmental factors upon humans is performed within, for example, a large number of medical disciplines. By extension, research institutes worldwide have analyzed diverse positive and negative factors affecting the biological system of the human body; one such factor consists in the influence of the surrounding electromagnetic field. This paper presents the results of an investigation focused on ionosphere parameter changes and their significance for the basic functioning of the nervous system. Let us note in this connection that the frequency of the alpha waves of an active brain [1] ranges between 6 and 8 Hz and that, interestingly, changes in the electromagnetic and chemical structure of the Earths surface may cause variation of signals in the given frequency region. Within the present article and the related research [2, 5-7], the authors evaluate very low frequencies of the electromagnetic field, applying suitable theoretical and experimental procedures to define the effects that influence brain activity.

An investigation of techniques for the infrared-to-visible spectrum transformation

The authors present a survey of methods and physical principles applicable in both harvesting the energy of the infrared spectrum within broadband electromagnetic radiation and ensuring the infrared-to-visible wave conversion. Several transformation procedures are analyzed together with different approaches to fabricating resonant structures at the level of nanoparticles or nanoobjects deposited on resonant or reflecting surfaces. The transformation effect can be utilized as a tool for special setting and changes of the visible spectrum in actual measurement and lighting technology applications.

The correlation of blood test results with the data obtained from MRI images during the determination of pathology in small bones

The paper discusses the diagnostics of pathology in small bones, especially those located in the mandibular region. We created a reference set of 36 patients including both subjects with defined pathologies of bone (necrosis; fibrous dysplasia; plasmacy toma; brown tumor; Pagets disease of bone; parathyreosis) and individuals without a pathology in the bone tissue. The purpose of the presented research is to find correlation between the blood tests of examined patients and their MRI images. The results of the blood tests mainly provided the information related to the levels of Ca, vitamin D, f-T4, osteocalcin, and parathyroid hormone PTH. The MRI images measured and processed comprised the subtypes T1W, T2W, STIR, and DWI. In further use, the established correlations may facilitate correct diagnostics of bone marrow pathologies.