background: a substantial part of the public’s natural radiation dose is due to the inhalation of radon gas. most of the exposure occurs indoors where the airborne concentration of radon and its decay products is usually higher than outdoors. materials and methods: radon activity concentration has been measured twice in 50 classrooms in 5 levels (10 each) during summer and winter using solid-st...

The total creatine pool size [Cr(total); creatine (Cr) + phosphocreatine (PCr)] is crucial for optimal energy utilization in skeletal muscle, especially at the onset of exercise and during intense contractions. The Cr(total) likely is controlled by long-term modulation of Cr uptake via the sodium-dependent Cr transporter (CrT). To test this hypothesis, adult male Sprague-Dawley rats were fed 1%...

Creatine (Cr) levels in skeletal muscle and brain of a mouse model of Cr deficiency caused by guanidinoacetate methyltransferase absence (GAMT-/-) were studied after Cr supplementation with 2 g.kg body wt-1.day-1 Cr for 35 days. Localized 1H magnetic resonance spectroscopy (MRS) was performed in brain (cerebellum and thalamus/hippocampus) and in hind leg muscle of GAMT-/- mice before and after ...

YURI L. MAISTRENKO?†, ANNA VASYLENKO†‡, OLEKSANDR SUDAKOV†q, ROMAN LEVCHENKO† and VOLODYMYR L. MAISTRENKO† ?Institute of Mathematics, National Academy of Sciences of Ukraine, Tereshchenkivska st. 3, 01030, Kyiv, Ukraine, [email protected] †National Scientific Centre for Medical and Biotechnical Research, National Academy of Sciences of Ukraine, Volodymyrska Str. 54, 01030, Kyiv, Ukrai...

Luís G. Esteves 1, Rafael Izbicki 2, Julio M. Stern 1 and Rafael B. Stern 2,* 1 Institute of Mathematics and Statistics, University of São Paulo, São Paulo 13565-905, Brazil; [email protected] (L.G.E.); [email protected] (J.M.S.) 2 Department of Statistics, Federal University of São Carlos, São Carlos 05508-090, Brazil; [email protected] * Correspondence: [email protected]; Tel.: +55-16...

Radon contributes with more than 50% to the dose equivalent to the public coming from natural sources, and is a major risk factor for lung cancer occurrence (10–14%, in Europe, p.a.) which should be investigated. Insufficient data on radon levels exist for Romania up to now and further extensive surveys are needed. The paper presents a series of in-situ indoor radon data in various locations in...

JEROME GALTIER, IGOR PESEK, KATJA PRNAVER AND JANEZ ŽEROVNIK Orange Labs 905 rue Albert Einstein 06921 Sophia Antipolis Cedex, France Faculty of Natural Sciences and Mathematics University of Maribor Koroška 160,2000 Maribor, Slovenia 3 Institute of Mathematics, Physics and Mechanics Jadranska 19, 1000 Ljubljana, Slovenia Faculty of Mechanical Engineering University of Ljubljana Aškerčeva 6, 10...

Particle intensity, dose equivalent and absorbed dose have been measured on board the space shuttles during their visit to the International Space Station (ISS) on STS-108 and STS-112. The dose estimates are based on very accurate measurements of recoils produced in CR-39 by cosmic ray primary and secondary protons and heavier nuclei and by secondary neutrons. The corresponding LET spectra were...

A time-efficient surface grinding and polishing procedure was developed to remove noise pitting associated with the etching of CR-39. CR-39 is a solid-state nuclear track detector used to measure and analyze ions produced by fusion implosions on the OMEGA and OMEGA EP laser systems. Using CR-39 thickness measurements acquired during the grinding process, surface removal rates of 68 µm/min and 5...

Energetic ions and ultrashort X-rays were generated by an intense ultrashort laser interacting with a copper target. Fast ions up to 3 MeV were observed with CR-39 nuclear track detector sheets when 7 TW laser was used. Cu ∼ Cu ions with the energy from 50 keV to 220 keV were detected with a Thomson parabola detector in the case of the laser power of 2.5 TW. Time-resolved X-ray diffraction was ...