[en] In the last decades, neutrino oscillation experiments have provided the evidence of a non-vanishing neutrino mass leading to a new physics beyond the Standard Model (SM). The difficulty in detecting and studying them explains why the neutrinos are the object of many experiments dedicated to determine their mass and nature. The experiments dedicated to effective electron-neutrino mass determination are the ones based on kinematic analysis of electrons emitted in single β-decay. In this context the MARE experiment aiming at the direct and calorimetric measurement of the electron neutrino mass with sub-eV sensitivity has born. Although the baseline of the MARE project is based on large arrays of rhenium thermal detectors, the MARE collaboration is considering the possibility to use ¹⁶³Ho electron capture (EC). This contribution gives an outlook of the neutrino mass measurement with ¹⁸⁷Re and ¹⁶³Ho in the framework of MARE

[en] The coprecipitation of polyvinilpyrrolidone (PVP) and SR2508 was used as a method for obtaining the polymeric derivative of the nitroimidazole radiosensitizer - CoSR2508. IR-spectroscopy and X-ray diffractometry were applied for it's physicochemical characterisation. By the method of kinetic dialysis a delayed liberation of the basic drug from the polymeric matrix was established, as well as in vitro studies were performed on it's binding to plasma proteins. The pharmacokinetics of CoSR2508 was studied on rabbits after i.v. application. The maximum concentration in the blood was found at 5th min for CoSR2508 and at 20th min - for SR2508 alone. These differences may be due to the inhibition of CoSR2508's binding to plasma proteins and its faster distribution into tissues. (author)

[en] Abstract only

[en] The invention is intended for radiation injuries prophylaxis in mammals. It has an well expressed radioprotective effect against acute gamma irradiation on cellular level as well as a prolonged action when applied up to 48 hours before the acute irradiation. The preparation is a coprecipitate of the natural tripeptide glutathione (reduced form) and polyvinyl pyrrolidone (pvp) in ratio 30-60/70-40. It is obtained by incubation method with subsequent lyophilization from water solution of the initial components. The molecular mass of the pvp is 20 till 360.10³. 2 claims

[en] The experiments dedicated to effective electron-neutrino mass determination are the kinematic ones from single β-decay. In this context an international collaboration is growing around the project of Micro calorimeters Arrays for a Rhenium Experiment (MARE) for a direct calorimetric measurements of the neutrino mass with sub-electron volt sensitivity. MARE is divided in two phases. The fist phase consists of two independent experiments using the presently available detector technology to reach a sensitivity of the order of 1 eV, and to improve the understanding of the systematic uncertainties specific of the microcalorimetric technique. The two experiments are: MARE-1 in Milan, in collaboration with NASA/GSFG and the University of Wisconsin at Madison, and MARE-1 in Genoa. The goal of the second phase (MARE-2) is to achieve a sub-electron volt sensitivity on the neutrino mass. The Milan MARE-1 arrays are based on semiconductor thermistors and dielectric Silver Perrhenate absorbers, AgReO₄.

[en] Complete text of publication follows. Advancements in analytical sciences for environmental monitoring and protection should nowadays be followed by efforts in the investigation and optimization of remediation processes. Advanced Oxidation Processes (AOPs) have demonstrated their effectiveness and efficiency in transforming organic pollutants in non-harmful compounds. Investigating AOPs means to describe the hydroxyl radical induced mineralization of the organic substrates found to pollute water. In the AOPs, H₂O itself - and eventually H₂O₂ - is split to produce OH by injecting energetic electrons, gamma rays, UV light or ultrasounds in water. A series of reactions take place in atmospheric aqueous solutions as p bond addition, hydrogen abstraction, electron transfer, and peroxydation which progressively demolish the organic pollutants up to elementary molecules like CO₂ and H₂O. An AOP system aims to mimic the naturally occurring oxidation: CH₂O + O₂ → CO₂ + H₂O where CH₂O is a symbolic organic compound. The equivalent Advanced Oxidation Process can be schematically conceived as CH₂O + 2OH → CO₂ + H₂O + H₂. In this work emphasis is given to the latest results on the decomposition of surfactants in water.

[en] Neutrino oscillation experiments have shown that neutrino are massive particles, but they are not able to determine the absolute neutrino mass scale. The experiments dedicated to effective electron-neutrino mass determination are the ones based on kinematic analyses of electrons emitted in single β-decay as ³H and ¹⁸⁷Re. Nowadays the electrostatic spectrometers and microcalorimeters, two complementary techniques, are the most sensitive detection principles. Two experiments, KATRIN and MARE, are currently being prepared to explore neutrino masses down to 0.2 eV. The KATRIN experiment, which combines an ultra-luminous windowless gaseous tritium source with a high resolution electrostatic spectrometer, will provide high precision in β-studies never achieved before. The MARE project aims at the direct and calorimetric measurement of the electron neutrino mass with sub-eV sensitivity. Although the baseline of the MARE project consists in a large array of rhenium based thermal detectors, a different option for the isotope is also being considered. This contribution gives an outlook for both experiments.

[en] Radio TLC has been used for determining the radiochemical purity and composition of two ^99mTc-radiopharmaceuticals, available as kits and commonly used for diagnostic imaging. Moreover, the same technique has been applied to detect impurities which decrease the specific activity of ¹³¹I-derivatized determatan sulfate, a new potential radiopharmaceutical, and for establishing the best labeling conditions. (author) 5 refs.; 5 figs

[en] A large calorimetric neutrino mass experiment using thermal detectors is expected to play a crucial role in the challenge for directly assessing the neutrino mass. We discuss and compare here two approaches for the estimation of the experimental sensitivity of such an experiment. The first method uses an analytic formulation and allows to obtain readily a close estimate over a wide range of experimental configurations. The second method is based on a Montecarlo technique and is more precise and reliable. The Montecarlo approach is then exploited to study some sources of systematic uncertainties peculiar to calorimetric experiments. Finally, the tools are applied to investigate the optimal experimental configuration of the MARE project.

[en] An international collaboration has grown around the project of Microcalorimeter Arrays for a Rhenium Experiment (MARE) for a direct and calorimetric measurement of the electron antineutrino mass with sub-electronvolt sensitivity.MARE is divided into two phases. The first phase (MARE-1) consists of two independent experiments using the presently available detector technology to reach a sensitivity of m_v≤2eV/c². The goal of the second phase (MARE-2) is to achieve a sub-electronvolt sensitivity on the neutrino mass.The Milan MARE-1 experiment is based on arrays of silicon implanted microcalorimeters, produced by NASA/GSFC, with dielectric silver perrhenate absorbers, AgReO₄. We present here the status of MARE-1 in Milan which is starting data taking with 2 arrays (72 detectors). In this configuration a sensitivity of about 5 eV can be achieved in two years. We describe in details the experimental setup which is designed to host up to 8 arrays (288 detectors). With 8 arrays, two years of measurement would improve the sensitivity to about 3 eV. This talk reports on the activity of the group for the MARE project in Milan.