The efficacious effects of pulsed electromagnetic field (PEMF) under the certain field parameters like frequency and the field intensity have been reported for various tissue and molecules. Since collagen is found abundantly in most tissue structures, this research was designed to further investigate the effects of extremely low frequency (ELF) PEMF on the synthesis of the epidermal collagen. ...

full adder cell is often placed in the critical path of other circuits. therefore it plays an important role in determining the entire performance of digital system. moreover, portable electronic systems rely on battery and low-power design is another concern. in conclusion it is a vital task to design high-performance and low-power full adder cells. since delay opposes against power consumptio...

In this paper, a high frequency contactless power transfer (CPT) system is designed with ∅2 inverter drive. This system works in 30MHz frequency and 380W power with low voltage stress and considers the inductive link parasitic capacitor effect. In the design, we formulated the inverter equations first and then suggested another design for the transmitter and the receiver coils as the energy tra...

introduction: low-frequency stimulation (lfs) has a delaying effect on kindled seizures acquisition. in the present study we examined the role of galanin receptors in the inhibitory effects of lfs on kindled seizures induced by electrical stimulation of perforant path. methods: animals were stimulated daily at the ad threshold intensity with a rapid kindling procedure. lfs was applied immediate...

conclusions no interactivity is present in modulatory effects of gabaa receptors and elf-emfs on serum testosterone of male rats. patients and methods fifty adult male rats were randomly assigned into 10 groups. groups 2, 4, 6, 8, and 10 were exposed to elf-emf for 30 days 8hrs per day; while, the remaining groups (1, 3, 5, 7, and 9) were sham exposed animals. at the end of the experiment, anim...

introduction: application of low-frequency stimulation (lfs) is a new method for treatment of drug resistant epileptic patients. previous studies demonstrated that activation of receptors coupled to gi proteins is one of the mechanisms of the anticonvulsant effect of lfs. thus, in this study, alterations in the expression of rgs4 and rgs10 proteins, as negative regulators of gi proteins, were i...

low frequency stimulation (lfs) is a potential alternative therapy for epilepsy. however, it seems that the anticonvulsant effects of lfs depend on its target sites in the brain. thus, the present study was designed to compare the anticonvulsant effects of lfs administered to amygdala, piriform cortex and substantia nigra on amygdala kindling acquisition. in control group, rats were kindled in ...