In this paper, a local MAGNETIC FIELD was designed and simulated using a Helmholtz coil along with a ferroMAGNETIC core with an appropriate geometric Structure to concentrate a MAGNETIC flux. This FIELD can be used for MAGNETIC guiding of Boron-borne drugs in BNCT.

Research study presents an experimental investigation on forced convection heat transfer of an aqueous ferro-fluid flow passing through a circular copper tube in the presence of an alternating MAGNETIC FIELD. The flow passes through the tube under a uniform heat flux and laminar flow conditions. The primary objective was to intensify the particle migration and disturbance of the boundary layer by utilizing the MAGNETIC FIELD effect on the nanoparticles for more heat transfer enhancement. Complicated convection regimes caused by interactions between MAGNETIC nanoparticles under various conditions were studied. The process of heat transfer was examined with different volume concentrations and under different frequencies of the applied MAGNETIC FIELD in detail. The convective heat transfer coefficient for distilled water and ferro-fluid was measured and compared under various conditions. The results showed that applying an alternating MAGNETIC FIELD can enhance the convective heat transfer rate. The effects of MAGNETIC FIELD, volume concentration and Reynolds number on the convective heat transfer coefficient were widely investigated, and the optimum conditions were obtained. Increasing the alternating MAGNETIC FIELD frequency and the volume fraction led to better heat transfer enhancement. The effect of the MAGNETIC FIELD in low Reynolds numbers was higher, and a maximum of 27.6% enhancement in the convection heat transfer was observed.

Background and Objective: Radiotherapy in one of the mainmethods of tumor treatment and control. Today, the integratedradiation therapy-MRI systems have been developed. The MAGNETICFIELDs of imaging systems can have effects on dose distribution intarget volume. Therefore, the aim of this study was to investigatethe effect of MAGNETIC FIELDs on dose distribution in radiationtherapy. Materials and Methods: This is a review article which was donethrough searching the google scholar and PubMed data bases byexpressions: radiation therapy and MAGNETIC FIELD photon therapyand MAGNETIC FIELD, electron therapy and MAGNETIC FIELD, protontherapy and MAGNETIC FIELD. Related research papers were sortedand their results were summarized. Results: MAGNETIC FIELDs can change the path of charged particlesin the medium can enforce the primary charged particles, secondaryelectrons and positrons to experience a spiral path, if appliedperpendicular to beam axes which leads to produce a peak dose. Longitudinal MAGNETIC FIELD decreases the penumbra and lateraldeflection of electrons. Conclusion: MAGNETIC FIELDs influence the dose distribution inradiotherapy and modification of treatment plan is essential whenapplying integrated MRI-radiation therapy systems. Also, applyingan intensity controlled transverse MAGNETIC FIELD can be aninexpensive approach to adjusting the maximum dose of chargedparticles in tumor volume while protecting normal tissues.

BACKGROUND AND OBJECTIVE: Some ill or premature neonates require special care nursery and maintenance of environmental conditions through incubator. Incubator electric system exposes the premature infants to electroMAGNETIC radiation. Given the fact that MAGNETIC radiation is one of the causative agents of leukemia in children, in this study, we aimed to evaluate the intensity of the MAGNETIC FIELD generated by incubators.METHODS: In this cross-sectional study, we measured the intensity of MAGNETIC FIELD produced by 17 incubators utilized in our neonatal intensive care units (NICU), using a teslameter. In each of the incubators, five points were determined to measure the intensity of the MAGNETIC FIELD. Measurements were performed twice (during two weeks between 10 and 12 am), in both horizontal and vertical directions.FINDINGS: The mean intensity of the MAGNETIC FIELD measured at all points inside the incubators was 0.2±0.03 mT. The intensity of MAGNETIC FIELD at a point inside the incubators (0.27±0.03 mT), measured in both horizontal and vertical directions, was significantly different from a point outside the incubators (p<0.04).CONCLUSION: At some points inside the incubators, the intensity of MAGNETIC FIELD increases by switching the heater on. Hence, minimizing the length of neonatal incubation period is recommended.

Magnetotherapy is a complementary therapeutic approach. It acts by applying the MAGNETIC FIELD and facilitates the improvement of the process. Infertility is one of the major clinical problems that affects about 10-15% of the world's population. Infertility in men accounts for about 40 to 50 percent. Sperm stimulation is one of the important parameters in male fertility. The aim of this study was to maintain the sperm motility using a moderate intensity of static MAGNETIC FIELD. Materials and Methods: After initial studies, 90 male samples with normal sperm specimens were collected. Each sample was divided into two parts, one specimen under the intensity of the MAGNETIC FIELD and one sample outside the MAGNETIC range and both inside the incubator at1, 3 and 5 h intervals in the center of the static MAGNETIC FIELD. The total sperm motility was determined by Casa software. Data was analyzed using SPSS software (version 16) and t-test. Conclusion: Static MAGNETIC FIELD can affect human sperm motility. The results of this experiment showed that the MAGNETIC FIELD, after 5 hours, could keep the sperm from moving outside the FIELD.

We report the effect of external electric FIELD (EEF) on the MAGNETIC properties of MnxGe1-x, diluted MAGNETIC semiconductor. We present a Kondo Lattice Model type Hamiltonian with exchange coupling between localized spins, itinerant holes and the EEF. The magnetization, the dispersion and critical temperature (Tc) are calculated for different values of EEF parameters (a) using double time temperature-dependent Green function formalism.The enhancement of the (Tc) with the EEF is shown to be very distinct and is in agreement with recent experimental observation and much required for spintronics applications and devices.