Roman Letters

7/28/2019 Roman Letters

1/6

Abstract

Diabetes is one disease that doesnt need any introduction to modern day people.

Moreover, effect of microwave radiation on our body is one area that much of the modern

day research is focused on. This study focuses on the effects that this two problems have

on the brain, an area of huge interest for neuroscientists. Our study uses rats as the animal

model for this experiment. The work has been carried out on four groups of rats i) control

group which acts as a reference ii) diabetic rats iii) microwave irradiated rats iii) diabetic

rats exposed to microwave radiation. The rats were made diabetic by injecting a chemical

Streptozotocin i.p. The microwave radiation of 2.45 GHz was given to the rats with the

help of a Microwave Analog Signal Generator. The effects produced on rat brain was

analyzed by recording the brain electrical potential called Electroencephalography (EEG)with the help of R.M.S provided Polyrite machine. The signal processing toolbox of

Matlab is used profoundly for processing the signal and performing spectral analysis of it

mention results. The results have showed increase in slow waves activity especially Delta

waves of EEG in all the groups with maximum effect on diabetic rats exposed to

microwave radiation.

Keywords: Microwave radiation, Diabetes, EEG, spectral analysis.

i


2/6

List of figures

Fig 1.1: Healthy EEG waveform 3

Fig 1.2: EEG Power spectrum of a healthy patient 4

Fig 2.1: (a) Overall process of Type 2 Diabetes 9

(b) Insulin Resistance created in Type 2 Diabetes 9

Fig 2.2: Harmful effects of Diabetes 11

Fig 3.1: Rats in their animal holder 36

Fig 3.2: Experimental Setup for microwave exposure 37

Fig 3.3: Electrodes implanted at different positions of rat brain 38

Fig 3.4: Total EEG Setup 38

Fig 4.1: Power Spectral Density of frontoparietal channel by Welch Method 44

Fig 4.2: Power Spectral Density of frontoparietal channel by AR Method 45

Fig 4.3: Power Spectral Density of occipital channel by Welch Method 46

Fig 4.4: Power Spectral Density of occipital channel by AR Method 47

Fig 4.5: Power Spectral Density of Temporal channel by Welch Method 48

Fig 4.6: Power Spectral Density of temporal channel by AR Method 49

ii


3/6

Fig 4.7: Mean power of frequency bands in frontoparietal channel by Welch method 50

Fig 4.8: Mean power of frequency bands in frontoparietal channel by AR method 50

Fig 4.9: Mean power of frequency bands in occipital channel by Welch method 51

Fig 4.10: Mean power of frequency bands in occipital channel by AR method 51

Fig 4.11: Mean power of frequency bands in temporal channel by Welch method 52

Fig 4.12: Mean power of frequency bands in temporal channel by AR method 52

Fig 4.13: Mean power of different channels by Welch method 53

Fig 4.13: Mean power of different channels by AR method 53

iii


4/6

List of Tables

Table 2.1: Different Microwave Bands 15

Table 2.2: EEG frequency bands 24

Table 3.1: Flowchart of EEG signal processing 39

Table 4.1: Blood Glucose level measures on Day 0 and Day 3 42

Table 4.2: Body weights of Rat 1 and Rat 2 43

iv


5/6

List of Abbreviations

CNS Central Nervous System

PNS Peripheral Nervous System

EEG Electroencephalography

GHz Gega Hertz

KHz Kilo Hertz

PSD Power Spectral Density

AR Auto Regressive

A/m Ampere per meter

V/m Volt per meter

IEEE Institute of Electrical and Electronics

Engineers

RF Radiofrequency

ISM Industrial Scientific and Medical

applications

SAR Specific Absorption rate

DNA Deoxyribonucleic Acid

PW Pulsed Wave

CW Continuous Wave

mW milliwatt

W microwatt

J/g Joule per gram

v


6/6

C.S.F Cerebro Spinal Fluid

cl Chlorine

K Potassium

ECG Electroencephalography

PPP Post Synaptic Potential

FFT Fast Fourier Transform

gm Gram

i.p. Intraperitoneal

STZ Streptozotocin

dB Decibel

dBm Decibel to 1 milliwatt

mm/min Millimeter per minute

Fs Sampling frequency

mg/dl Milligram per deciliter

vi

Documents

Roman Letters