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Central Library of Kurdistan University of Medical Sciences
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:: Volume 23, Issue 2 (Scientific Journal of Kurdistan University of Medical Sciences 2018) ::
SJKU 2018, 23(2): 37-45 Back to browse issues page
Evaluation of the effects of radio frequency waves and mobile phone distance on cow brain tissue temperature
Hasan Ebrahimi1 , Siamak Pourabdian2 , Farhad Forouharmajd 3
1- School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran.
2- Faculty member of Department of Occupational Health Engineering, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran.
3- Faculty member of Department of Occupational Health Engineering, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran , forouhar@hlth.mui.ac.ir
Abstract:   (7626 Views)
Background and Aim: Considering the great advances and extensive use of cell phones and its effects on the human communications and interactions, investigation of potential negative effects of cell phones on the users' health is necessary. The aim of this study was to determine the effect of the distance between cell phones and brain tissue on the temperature of the central and gray matters of the brain, because of the heat generated by radiofrequency waves.
Methods: This was an experimental study. Cow brain tissue was analyzed in a compartment with three depths of 2 mm, 12 mm and 22 mm, and at the distances of 4 mm and 4 cm from a cell phone, for 15 minutes. Lutron thermometer was used to measure the tissue temperature. Data analysis performed by using Lutron and MATLAB software packages.
Results: Temperature increase was more at the distance of 4 mm and in the depths of 2, 12, and 22 mm compared to that at the distance of 4 cm. Also temperature increase after removal of the confrontation was more than the baseline temperature at both distances which was higher at the distance of 4 mm.
Conclusion: Decreased distance between brain tissue and cell phone can increase the tissue temperature. Increasing the cell phone distance from the brain tissue can result in slower trend in temperature increase and decreased collective temperature after discontinuing the confrontation.
Key words: Mobile phone, Radiofrequency waves, Brain tissue, Temperature.
 
Received: May 30, 2017     Accepted: Apr 9, 2018
Keywords: Mobile phone, Radiofrequency waves, Brain tissue, Temperature.
Full-Text [PDF 626 kb]   (986 Downloads)    
Type of Study: Original Research | Subject: General
Received: 2018/05/31 | Accepted: 2018/05/31 | Published: 2018/05/31
References
1. 1. Stankovic´ V, Jovanovic´ D, Krstic´ D, Markovic´ V, Cvetkovic´ N. Temperature distribution and Specific Absorption Rate inside a child's head. Int J Heat Mass Transfer 2017; 104: 559–65. [DOI:10.1016/j.ijheatmasstransfer.2016.08.094]
2. Anguera J, Andújar A, Huynh M-C, Orlenius C, Picher C, Puente C. Advances in antenna technology for wireless handheld devices. Int J Antennas Propag 2013; 2013: 1-25. [DOI:10.1155/2013/838364]
3. Khurana VG, Teo C, Kundi M, Hardell L, Carlberg M. Cell phones and brain tumors: a review including the long-term epidemiologic data. Surg Neurol 2009; 72: 205-14. [DOI:10.1016/j.surneu.2009.01.019]
4. Hussein S, El-Saba A-A, Galal MK. Biochemical and histological studies on adverse effects of mobile phone radiation on rat's brain. J Chem Neuroanat 2016; 78: 10-19. [DOI:10.1016/j.jchemneu.2016.07.009]
5. Lahiri B, Bagavathiappan S, Soumya C, Jayakumar T, Philip J. Infrared thermography based studies on mobile phone induced heating. Infrared Phys Technol 2015; 71: 242-51. [DOI:10.1016/j.infrared.2015.04.010]
6. Develi I, Sorgucu U. Prediction of temperature distribution in human BEL exposed to 900MHz mobile phone radiation using ANFIS. Appl Soft Comput 2015; 37: 1029-36. [DOI:10.1016/j.asoc.2015.04.055]
7. Lindholm H, Alanko T, Rintamäki H, Kännälä S, Toivonen T, Sistonen H, et al. Thermal effects of mobile phone RF fields on children: a provocation study. Prog Biophys Mol Biol 2011; 107: 399-403. [DOI:10.1016/j.pbiomolbio.2011.09.004]
8. Perrin A, Cretallaz C, Collin A, Amourette C, Yardin C. Effects of radiofrequency field on the blood-brain barrier: A systematic review from 2005 to 2009. Comptes Rendus Physique 2010; 11: 602-12. [DOI:10.1016/j.crhy.2010.09.001]
9. Rusnani A, Norsuzila N, editors. Measurement and analysis of temperature rise caused by handheld mobile telephones using infrared thermal imaging. RF and Microwave Conference. 2008 Dec. 1-2, Kuala Lumpur, Malaysia. [DOI:10.1109/RFM.2008.4897449]
10. Isa R, Pasya I, Taib M, Jahidin A, Omar W, Fuad N, et al. Classification of brainwave asymmetry influenced by mobile phone radiofrequency emission. Procedia Soc Behav Sci 2013; 97: 538-45. [DOI:10.1016/j.sbspro.2013.10.270]
11. Anderson V, Rowley J. Measurements of skin surface temperature during mobile phone use. Bioelectromagnetics 2007; 28: 159-62. [DOI:10.1002/bem.20282]
12. Wessapan T, Srisawatdhisukul S, Rattanadecho P. Specific absorption rate and temperature distributions in human head subjected to mobile phone radiation at different frequencies. Int J Heat Mass Transfer 2012; 55: 347-59. [DOI:10.1016/j.ijheatmasstransfer.2011.09.027]
13. Kaplan, S, Deniz OG, Önger ME, Türkmen AP, Yurt KK, Aydin I, et al. Electromagnetic field and brain development. J Chem Neuroanat 2016; 75: 52–61. [DOI:10.1016/j.jchemneu.2015.11.005]
14. Hossain M, Faruque MRI, Islam MT. Analysis on the effect of the distances and inclination angles between human head and mobile phone on SAR. Prog Biophys Mol Biol 2015; 119: 103-10. [DOI:10.1016/j.pbiomolbio.2015.03.008]
15. Kivekas O, Ollikainen J, Lehtiniemi T, Vainikainen P. Bandwidth, SAR, and efficiency of internal mobile phone antennas. IEEE T Electromagn C 2004; 46: 71-86. [DOI:10.1109/TEMC.2004.823613]
16. Hirata A, Sugiyama H, Fujiwara O. Estimation of core temperature elevation in humans and animals for whole-body averaged SAR. Prog Electromagn Res 2009; 99: 53-70. [DOI:10.2528/PIER09101603]
17. Alaei P. Introduction to health physics. Med Phys 2008; 35: 5959. [DOI:10.1118/1.3021454]
18. Beason RC, Semm P. Responses of neurons to an amplitude modulated microwave stimulus. Neurosci Lett 2002; 333: 175-8. [DOI:10.1016/S0304-3940(02)00903-5]
19. Hocking B, Westerman R. Neurological effects of radiofrequency radiation. Occup Med 2003; 53: 123-7. [DOI:10.1093/occmed/kqg030]
20. Mortazavi SMJ, Atefi M. The ability of GSM mobile phone users in detecting exposure to electromagnetic fields and the bioeffects of these fields on their vital signs. JKMU 2010; 17: 257-67.
21. Kesari KK, Siddiqui M, Meena R, Verma H, Kumar S. Cell phone radiation exposure on brain and associated biological systems. Indian J Exp Biol 2013; 51: 187-200.
22. Li H-J, Peng R-Y, Wang C-Z, Qiao S-M, Yong Z, Gao Y-B, et al. Alterations of cognitive function and 5-HT system in rats after long term microwave exposure. Physiol Behav 2015; 140: 236-46. [DOI:10.1016/j.physbeh.2014.12.039]
23. Saikhedkar N, Bhatnagar M, Jain A, Sukhwal P, Sharma C, Jaiswal N. Effects of mobile phone radiation (900 MHz radiofrequency) on structure and functions of rat brain. Neurol Res 2014; 36: 1072-9. [DOI:10.1179/1743132814Y.0000000392]
24. Ezz HA, Khadrawy Y, Ahmed N, Radwan N, El Bakry M. The effect of pulsed electromagnetic radiation from mobile phone on the levels of monoamine neurotransmitters in four different areas of rat brain. Eur Rev Med Pharmacol Sci 2013; 17: 1782-8.
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Ebrahimi H, Pourabdian S, Forouharmajd F. Evaluation of the effects of radio frequency waves and mobile phone distance on cow brain tissue temperature. SJKU 2018; 23 (2) :37-45
URL: http://sjku.muk.ac.ir/article-1-4105-en.html


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Volume 23, Issue 2 (Scientific Journal of Kurdistan University of Medical Sciences 2018) Back to browse issues page
مجله علمی دانشگاه علوم پزشکی کردستان Scientific Journal of Kurdistan University of Medical Sciences
مجله علمی دانشگاه علوم پزشکی کردستان Scientific Journal of Kurdistan University of Medical Sciences
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