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Variation of the dielectric properties of tissues with age: the effect on the values of SAR in children when exposed to walkie-talkie devices

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Abstract
In vitro dielectric properties of ageing porcine tissues were measured in the frequency range of 50 MHz-20 GHz, and the total combined uncertainties of the measurements were assessed. The results show statistically significant reduction with age in both permittivity and conductivity of 10 out of 15 measured tissues. At microwave frequencies, the observed variations are mainly due to the reduction in the water content of tissues as an animal ages. The results obtained were then used to calculate the SAR values in children of age 3 and 7 years when they are exposed to RF induced by walkie-talkie devices. No significant differences between the SAR values for the children of either age or for adults were observed.
Keywords
ADULTS, 1900 MHZ, MOBILE TELEPHONES, BIOLOGICAL-SYSTEMS, ELECTRICAL-PROPERTIES, MICROWAVE-FREQUENCIES, PERMITTIVITY VALUES, BRAIN, BONE, ELECTROMAGNETIC ABSORPTION

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Chicago
Peyman, A, C Gabriel, EH Grant, Günter Vermeeren, and Luc Martens. 2009. “Variation of the Dielectric Properties of Tissues with Age: The Effect on the Values of SAR in Children When Exposed to Walkie-talkie Devices.” Physics in Medicine and Biology 54 (2): 227–241.
APA
Peyman, A., Gabriel, C., Grant, E., Vermeeren, G., & Martens, L. (2009). Variation of the dielectric properties of tissues with age: the effect on the values of SAR in children when exposed to walkie-talkie devices. PHYSICS IN MEDICINE AND BIOLOGY, 54(2), 227–241.
Vancouver
1.
Peyman A, Gabriel C, Grant E, Vermeeren G, Martens L. Variation of the dielectric properties of tissues with age: the effect on the values of SAR in children when exposed to walkie-talkie devices. PHYSICS IN MEDICINE AND BIOLOGY. 2009;54(2):227–41.
MLA
Peyman, A, C Gabriel, EH Grant, et al. “Variation of the Dielectric Properties of Tissues with Age: The Effect on the Values of SAR in Children When Exposed to Walkie-talkie Devices.” PHYSICS IN MEDICINE AND BIOLOGY 54.2 (2009): 227–241. Print.
@article{868563,
  abstract     = {In vitro dielectric properties of ageing porcine tissues were measured in the frequency range of 50 MHz-20 GHz, and the total combined uncertainties of the measurements were assessed. The results show statistically significant reduction with age in both permittivity and conductivity of 10 out of 15 measured tissues. At microwave frequencies, the observed variations are mainly due to the reduction in the water content of tissues as an animal ages. The results obtained were then used to calculate the SAR values in children of age 3 and 7 years when they are exposed to RF induced by walkie-talkie devices. No significant differences between the SAR values for the children of either age or for adults were observed.},
  author       = {Peyman, A and Gabriel, C and Grant, EH and Vermeeren, G{\"u}nter and Martens, Luc},
  issn         = {0031-9155},
  journal      = {PHYSICS IN MEDICINE AND BIOLOGY},
  keyword      = {ADULTS,1900 MHZ,MOBILE TELEPHONES,BIOLOGICAL-SYSTEMS,ELECTRICAL-PROPERTIES,MICROWAVE-FREQUENCIES,PERMITTIVITY VALUES,BRAIN,BONE,ELECTROMAGNETIC ABSORPTION},
  language     = {eng},
  number       = {2},
  pages        = {227--241},
  title        = {Variation of the dielectric properties of tissues with age: the effect on the values of SAR in children when exposed to walkie-talkie devices},
  url          = {http://dx.doi.org/10.1088/0031-9155/54/2/004},
  volume       = {54},
  year         = {2009},
}

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