Here is a simple trick that you can use to try to dupe a friend out of his money with high probability. Bet with him on the outcome of three specially numbered dice labelled X , Y , and Z each with six faces marked as: X (3 3 5 5 7 7), Y (2 2 4 4 9 9), Z (1 1 6 6 8 8). Each person chooses a different die. The larger number wins when the dice are rolled. Strangely, whichever die your friend has ...

Electron paramagnetic resonance (EPR) spectroscopy in combination with the rapid freeze-quench (RFQ) technique is a well-established method to trap and characterize intermediates in chemical or enzymatic reactions at the millisecond or even shorter time scales. The method is particularly powerful for mechanistic studies of enzymatic reactions when combined with high-frequency EPR (ν≥90 GHz), wh...

Oxidative stress during ischemia-reperfusion acute renal failure (IR-ARF) was noninvasively evaluated with in vivo electron paramagnetic resonance (EPR) imaging. Female ICR mice underwent left nephrectomy and 30-min ischemia-reperfusion of the right kidney. Oxidative stress was evaluated as organ reducing activity with the half-lives of the spin probe 3-carbamoyl-2,2,5,5-tetramethylpyrrolidine-...

Hirayama, Aki, Sohji Nagase, Atsushi Ueda, Takaaki Oteki, Kenji Takada, Mami Obara, Mariko Inoue, Keigyou Yoh, Kouichi Hirayama, and Akio Koyama. In vivo imaging of oxidative stress in ischemia-reperfusion renal injury using electron paramagnetic resonance. Am J Physiol Renal Physiol 288: F597–F603, 2005. First published November 9, 2004; doi:10.1152/ajprenal.00020. 2004.—Oxidative stress durin...

In EPR (electron paramagnetic resonance) spectroscopy, computer simulation and least-squares fitting are essential in extracting quantitative structural and dynamic parameters from experimental spectra.Without numerical methods, this extraction would be restricted to simple systems. This chapter summarizes simulation and fitting methods that have been proposed in the literature and implemented ...

Security of medical images is an important issue, since applications such as Tele diagnosis exchange information over insecure communication channels. In this paper, Shamir secret sharing algorithm combined with DNA cryptography is proposed. The method involves the dispersion of medical image and Electronic Patient Record (EPR) into shadow images, aiming at better security characteristics. The ...

Framework-incorporated vanadium mesoporous silica materials with different contents in vanadium were obtained by a facile, direct synthesis at room temperature, using VOSO4 x 5H2O as the vanadium precursor. The porous characteristics of the samples and the coordination environment of the vanadia in the structure were studied by a combination of techniques: X-ray diffraction, N2-adsorption/desor...

Electron Paramagnetic Resonance (EPR) is a well-known spectroscopic and imaging technique that can detect free radicals both in vitro and non-invasively in vivo, with high sensitivity. In food, free radicals can be generated by several commonly used industrial processes, such as radiosterilization or heat treatment. EPR spectroscopy has been widely used to detect radioinduced free radicals in f...

PURPOSE To investigate the effects of a fully functional electronic patient record (EPR) system on clinicians' work during team conferences, ward rounds, and nursing handovers. METHOD In collaboration with clinicians an EPR system was configured for a stroke unit and in trial use for 5 days, 24h a day. During the trial period the EPR system was used by all clinicians at the stroke unit and it...