The purpose of this paper is to present and discuss a general HV topology of the solid-state Marx modulator, for unipolar or bipolar generation connected with a step-up transformer to increase the output voltage applied to a resistive load. Due to the use of an output transformer, discussion about the reset of the transformer is made to guarantee zero average voltage applied to the primary. It ...

Senecio jacobaea (SJ) was incubated in sheep rumen fluid-buffer mixtures to determine if metabolism and(or) detoxication of pyrrolizidine alkaloids (PA) was occurring. The nontoxic reduction metabolite, 7 beta-hydroxy-l-methylene-8 alpha-pyrrolizidine, was not detected when SJ-rumen fluid incubation extracts were subjected to high performance liquid chromatography and mass spectrographic analys...

background: radiation-induced bystander effect is a response which results in damage in non-irradiated cells in response to signals from the irradiated cells. the aim of the present study was to investigate microwave-induced bystander effect from a gsm mobile phone simulator on induction of apoptosis in jurkat cell line. materials and methods: jurkat cells were divided into three groups of non-...

background inferior turbinate hypertrophy (ith) is one of the common causes of nasal obstruction. in some case with ith due to allergic rhinitis medical therapy can be useful and in cases with refractory ith surgical techniques may be helpful. although there is no excellence [or superiority] among these surgical methods, radiofrequency (rf) has recently become popular. objectives this study com...

This paper reports on the development of an RF IV waveform based stress test procedure. DC and low-voltage RF characterisation was carried out before and after high power RF stress. RF waveform measurements showed that the exact change in the RF load line induced during RF degradation cannot be directly inferred from the DC or low power RF measurement. The RF degradation takes the form of a kne...

alzheimer’s disease, the most common type of dementia and a progressive neurode-generative disease, occurs when the nerve cells in the brain die. although there are medications that can help delay the development of alzheimer’s disease, there is cur-rently no cure for this disease. exposure to ionizing and non-ionizing radiation may cause adverse health effects such as cancer. looking at the ot...