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Medical Devices and Systems Exposure and Dosimetry
Published in James C. Lin, Electromagnetic Fields in Biological Systems, 2016
Magnetic fields, in spite of being suspected to cause childhood leukemia if emitted from power lines or transformer stations (I ARC 2002), are frequently considered a last resort of people with various health complaints. Aggressive marketing and fanciful therapeutic promises have made them a big business. The dispute whether magnet therapy is beneficial or hogwash is ongoing (Flamm 2007; Pieber, Herceg, and Paternostro-Sluga 2010; Kröling et al. 2009). Magnetic therapy device manufacturers provide long lists of indications and disorders from angina, depression, headache, and toothache to rheumatism. Authorities are reluctant in generally accepting the clinical efficiency of magnetic therapy devices. The U.S. Food and Drug Administration (FDA) has restricted acceptance of magnetic therapy only to some indications of proven clinical evidence (FDA 2006); the German Federal Board of Physicians and Health Insurance has classified magnetic therapy not eligible for reimbursement because of unproven efficiency (HMR 2004); and in an ordinance to the medical devices law, the Austrian government has banned magnetic therapy devices from the lay market and restricted their distribution. Magnetic therapy devices are allowed to be distributed only based on medical prescriptions for individual patients (MFTGV 2003).
The Modern Magnetotherapies
Published in Andrew A. Marino, Modern Bioelectricity, 2020
These studies, if replicated, implicate the role of geomagnetic pulsations and ultra low frequency variations. Exacerbations of irritability, psychiatric complaints and related aversive behaviors have been frequently associated with magnetic storms. The Subrahmanyam results suggest that ailments may be associated with a lack of geomagnetic stimuli. Interestingly, Grünner (20,24) noted that the symptoms of neurotic patients were exacerbated on days when the geomagnetic oscillations were very quiet. The applications of these observations to magneto-therapy remain to be established.
A time fractional model of hemodynamic two-phase flow with heat conduction between blood and particles: applications in health science
Published in Waves in Random and Complex Media, 2022
Farhad Ali, Fazli Haq, Naveed Khan, Anees Imtiaz, Ilyas Khan
This paper aims to study the impact of magnetic field on blood flow to discuss the importance and role of magnetic field in different areas of biomedicine. In drug delivery, magnetically guided drug targeting has been used in order to enhance the efficacy and reduce the unpleasant side effects associated with chemotherapy. This method of drug delivery involves immobilization of drug or radionuclide in biocompatible magnetic nano- or microspheres. This method of delivery makes chemotherapy more effective by increasing the drug concentration at the tumor site while limiting the systemic drug concentration. The magnetic particles are used to deliver a package, such as an anticancer drug, or a cohort of radionuclide atoms, to a targeted region of the body, such as a tumor. Magnetic therapy can be very useful to the conditions like headaches, travel sickness, poor circulation, muscles sprains, strains and joints pain. In the above literature, so far no one has considered the Casson fluid model for blood flow with heat conduction between blood and particles with fractional derivatives. In this paper, we study the blood flow as a fractional Casson fluid in the presence of a magnetic field and heat conduction between the particles and blood through a cylindrical vessel. The concentration equation is also considered in this paper. Exact solutions for both the velocities (blood and particle), both the temperatures (blood and particles) and concentration are obtained via the Laplace & Hankel transforms. The influence of different parameters on the blood flow, particle velocity, the temperature of blood, and particles are studied graphically.
Production and characterization of magnetic textiles
Published in The Journal of The Textile Institute, 2022
Zeynep Omerogullari Basyigit, Ali Riza Beden, Hatice Coskun
Magnetic textiles, which have been extensively studied on international platforms (Huang et al., 2015; Ehrmann & Blachowicz, 2017; Grosu et al., 2018; Zhou et al., 2018; Zhou et al., 2019; Jin et al., 2021), are still hardly used in Turkey and there are few studies on this topic. In the studies, it has been proven that the use of textiles with magnetic fields is beneficial to human health. They can reduce vascular permeability, support cellular metabolism and blood circulation, reduce inflammation, and strengthen immune functions (Nikolaeva et al., 2010). In addition, the microcirculation (blood circulation in capillaries) of people to whom a magnetic field of certain strength is applied improves, and metabolic products are quickly removed (Kondo et al., 2018). For this reason, magnetic textiles belong to the category of smart textiles. They find application and utility in medical treatment, electronic textiles, biomedicine, sportswear, protective clothing, and space exploration. In addition, magnetic textiles can provide conductivity and antistatic properties, electromagnetic shielding, and radar absorbing properties (Zhou et al., 2019). The magnetic force mentioned here is also used in the magnetic field treatment called magnetotherapy in clinics. Magnet therapy is a physical treatment method based on the interaction of magnetic fields (Birla & Hemin, 2005). The mechanism of action claimed by Dr. Warnke et al. is that the magnetic field resonates with organisms, organs, tissues, cells, and even molecules, affecting pH balance. This therapy enables the resumption of many biological processes at the molecular, cellular, and systemic levels that take over the functions of organs in the human organism (Özkan, 2015).