Results 211 to 220 of about 345,855 (252)

The Optimal Dose of Nicardipine for Enhancement of Indirect Portography

CardioVascular and Interventional Radiology, 1998
To determine the optimal dose of nicardipine (NCR) for enhancement of indirect portography.Forty-eight patients underwent conventional film indirect portography via the superior mesenteric artery (SMA) first without and then with preinjection of 1/64-2 mg of NCR into the SMA.NCR (1/8-2 mg) shortened the arterial phase to 50% and the portal appearance ...
Y, Inoue, H, Nakamura, H, Akaji
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A Single Dose of Vitamin D Enhances Immunity to Mycobacteria [PDF]

American Journal of Respiratory and Critical Care Medicine, 2007
Abstract Rationale Vitamin D was used to treat tuberculosis (TB) in the preantibiotic era. Prospective studies to evaluate the effect of vitamin D supplementation on antimycobacterial immunity have not previously been performed ...
Martineau, Adrian R., Wilkinson, Robert J., Wilkinson, Katalin A., Newton, Sandra M., Kampmann, Beate, Hall, Bridget M., Packe, Geoffrey E., Davidson, Robert N., Eldridge, Sandra M., Maunsell, Zoë J., Rainbow, Sandra J., Berry, Jacqueline L., Griffiths, Christopher J.   +12 more
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Lethal enhancement of therapeutic doses of acetaminophen by alcohol

Digestive Diseases and Sciences, 1986
A 47-year-old man undergoing supervised alcohol detoxification developed severe liver disease after receiving small doses of acetaminophen. Autopsy revealed extensive hepatic necrosis. Proposed mechanisms for alcohol potentiation of acetaminophen hepatotoxicity are described.
P B, Lesser, M M, Vietti, W D, Clark
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X-Ray Dose Enhancement

IEEE Transactions on Nuclear Science, 1978
A very simple model for the estimation of the x-ray dose enhancement at material interfaces is developed. The model is verified through comparison of estimates with Monte Carlo calculations. Additional Monte Carlo calculations are presented for dose enhancement for several conductor/polyethylene interfaces, for a gold/silicon interface with continuous ...
exaly   +2 more sources

Photon radiation dose enhancement at material interfaces

Applied Radiation and Isotopes, 2001
Experimental radiation dose-effect studies at a material's interface require high-resolution dose measurements resulting from the exposure of mounted samples on a supporting substrate. Reflections of photons and electrons from the substrate increase the effective dose to the sample relative to dose from the direct beam incident on the unbacked sample ...
H H, Hsu, J, Chen, D G, Vasilik
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Dose enhancement by various nanoparticles in prostate brachytherapy

Australasian Physical & Engineering Sciences in Medicine, 2013
The aim of this Monte Carlo study is to calculate dose enhancement in tumours by various nanoparticles in prostate brachytherapy using (125)I interstitial implants. ProstaSeed (125)I brachytherapy source was simulated using MCNPX Monte Carlo code. Dose rate constant, radial dose function and anisotropy function values were calculated and compared with ...
Mahdi, Ghorbani, Mahdi, Bakhshabadi, Alireza, Golshan, Courtney, Knaup   +3 more
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Time–dose relationships in radiation-enhanced integration

International Journal of Radiation Biology, 2001
We have shown that ionizing radiation increases recombination, as manifested by increased stable transduction of both plasmid and adenoviral vectors. This paper reports the duration of increased recombination after irradiation.A549 or NIH/3T3 cells were transfected at various times after irradiation.
C W, Stevens, M, Puppi, G J, Cerniglia
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Electron collision dose enhancement

IEEE Transactions on Nuclear Science, 2000
High-Z layers in IC packages and on IC die slow and reflect incident electron fluxes much more effectively than low-Z layers. In typical nuclear and space environments, high-Z solder bonds can enhance the electron collision dose by up to 85%, and Au-plated lids can enhance it by up to 50%.
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Enhancement of high dose cyclosporin A toxicity by frusemide

Biochemical Pharmacology, 1984
Adult Sprague-Dawley rats were given cyclosporin A (CyA), frusemide (Fr) or both drugs daily for 14 days. The doses of CyA (50 mg/kg) and Fr (5 mg/kg) were approximately 3-6 times and twice respectively those used in man. Fr on its own produced a diuresis lasting approximately 3 hr.
P H, Whiting, C, Cunningham, A W, Thomson, J G, Simpson   +3 more
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Dose Enhancement Effects in Semiconductor Devices

IEEE Transactions on Nuclear Science, 1982
This paper presents engineering factors for estimating the effects of dose enhancement on semiconductor devices. Included are a variety of photon spectra, device structures and radiation responses mechanisms. These data can be used to predict transient and permanent effects caused by various radiation environments and to interpret measurements obtained
D. M. Long, D. G. Millward, J. Wallace
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