In surgical procedures for femoral shaft fracture treatment, current techniques for locking the distal end of intramedullary nails, using two screws, rely heavily on the use of two-dimensional X-ray images to guide three-dimensional bone drilling processes. Therefore, a large number of X-ray images are required, as the surgeon uses his/her skills and experience to locate the distal hole axes on...

Effects of calyculin A, a potent inhibitor of protein phosphatases 1 and 2A, on X-ray cell killing and chromatin structure were studied using cultured mammalian cells (BHK21). Calyculin A at concentrations of 2.5-20 nM enhanced X-ray cell killing when exponentially growing BHK21 cells were treated with calyculin A for 30 min after X-irradiation. A 30-min treatment with this drug induced chromat...

The growth arrest and DNA damage-inducible protein 45alpha (GADD45a) gene is responsive to a variety of DNA-damaging agents. It is known that induction of the GADD45a gene is regulated in a p53-dependent manner after ionizing irradiation. Our previous study showed that X-ray irradiation increased the transcription rate of the GADD45a gene much earlier than the maximum accumulation of stabilized...

Oral mucositis is a frequent and serious side effect in patients who receive radiotherapy for head and neck cancer. The purpose of this study was to develop a noninvasive and quantitative model of oral mucositis in rats, investigate the pathophysiology, and evaluate the efficacy of pharmacological interventions. Rats received a single dose of 15 Gy of X-rays to the snout after shielding of the ...

To see the effects of the direct X-ray in a Lanex screen-coupled CMOS APS imager, we measured modulation transfer function (MTF), noise power spectrum (NPS), and detective quantum efficiency (DQE). These measurements were performed under the condition of non-destructive test (NDT). By increasing the cumulative exposure on the imager, the MTF was degraded, and also leading to the DQE degradation...

High-energy ion beam irradiation of the polymers is a good technique to modify the properties such as electrical conductivity, structural behaviour and mechanial properties. Polyaniline thin films doped with hydrochloric acid (HCl) were prepared by oxidation of ammonium persulphate. The effect of Swift Heavy Ions irradiation on the electrical and structural properties of polyaniline has been me...

In this work, H3PW12O40 (PPT) and nano-sized titania supported on urea formaldehyde (UF) resinwas prepared via an impregnation method. The prepared sample was characterized by X-raydiffraction (XRD), UV-Vis spectrophotometer, Fourier transform infrared spectroscopy (FT-IR),scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The photocatalyt...