Efficacy of cimetidin in the prevention of ulcer formation in the stomach during immobilization stress

The effect of stress on the formation of ulcers in the mucous membrane of the stomach, the increase in cyclic adenosine monophosphate level in the gastric tissues, and parietal cell structure alteration. Use of cimetidin prevents these effect

Hadron Calorimeter (Projectile Spectator Detector—PSD) of NA61/SHINE experiment at CERN

The fixed target experiment NA61/SHINE at the CERN SPS aims to study the onset of deconfinement and search for the critical point of strongly interacting matter. A segmented hadron calorimeter, the Projectile Spectator Detector (PSD), is used in the NA61 experiment to determine the collision centrality and to reconstruct the event plane orientation in collisions of nuclei. The PSD precisely characterizes the event class for the analysis and provides the centrality selection at the trigger level The wide ranges of beam energies and sizes of the collision system require high dynamic range of the electronic readout. At the same time sensitivity to small signals is needed for the PSD calibration based on minimum ionizing particles. The PSD was also used for particle identification to distinguish electrons and positrons from pions in the 2017 data taking of reference measurements for Fermilab neutrino beam lines. The performance of the PSD for hadrons is discussed as well as a proposal to upgrade the PSD for the NA61 experimental program beyond 2020

Performance Studies of Prototype II for the CASTOR forward Calorimeter at the CMS Experiment

We present results of the performance of the second prototype of the CASTOR quartz-tungsten sampling calorimeter, to be installed in the very forward region of the CMS experiment at the LHC. The energy linearity and resolution, as well as the spatial resolution of the prototype to electromagnetic and hadronic showers are studied with E=20-200 GeV electrons, E=20-350 GeV pions, and E=50,150 GeV muons from beam tests carried out at CERN/SPS in 2004. The responses of the calorimeter using two different types of photodetectors (avalanche photodiodes APDs, and photomultiplier tubes PMTs) are compared.Comment: 16 pages, 22 figs., submitted to EPJ-

Search for T-violation in K^+ --> pi^0 mu^+ nu and K^+ --> mu^+ nu gamma Decays

The recent progress in search for T-violating transverse muon polarization in the decays K^+ --> pi^0 mu^+ nu and K^+ --> mu^+ nu gamma in the on-going experiment E246 at KEK is reported. Future prospects in polarization measurements are also discussed.Comment: 11 pages, 5 figures, talk at the Conference of Nuclear Physics Department RAS, 27 November - 1 December 2000, ITEP, Mosco

Modern Approaches to Vaccination of Patients with Chronic Liver Diseases and Inflammatory Bowel Diseases against a Novel Coronavirus Infection

Aim. To analyze the literature data on the peculiarities of vaccination of patients with chronic liver diseases (CLD) and inflammatory bowel diseases (IBD) against COVID-19 infection.Key findings. It has been shown that many patients with CLD (cirrhosis of the liver, non-alcoholic fatty liver disease) have a higher risk of severe course of a novel coronavirus infection, which necessitates their vaccination. IBD patients are also subject to vaccination, although the immunomodulatory drugs which they take may reduce its effectiveness. In addition, the correct timing of the vaccine administration is of great importance. Vaccination of patients with CLD and IBD is safe, and the frequency of side effects during its implementation does not differ from that in the general population.Conclusion. Analysis of literature data shows that patients with CLD and IBD are subject to vaccination against COVID-19 infection, which is effective and safe

The Construction and Parameters of Forward Hadron Calorimeter (FHCAL) at MPD/NICA

Forward hadron calorimeter (FHCAL) at MPD/NICA experimental setup is intended for the measurements of the geometry of heavy ions collisions, namely, the collision centrality and the orientation of the reaction plane. FHCAL consists of two identical arms placed at the left/right sides from the beam collision point. This is a modular lead- scintillator compensating calorimeter designed to measure the energy distribution of the projectile nuclei fragments (spectators) and forward going particles close to the beam rapidity

The PSD CBM Supermodule Response Study for Hadrons in Momentum Range 2 – 6 GeV/c at CERN Test Beams

The Projectile Spectator Detector (PSD) will be used at the Compressed Baryonic Matter (CBM) experiment at FAIR to measure the centrality and orientation of the reaction plane in heavy-ion collisions. A study of PSD supermodule response at proton and pion momentum range 2 – 6 GeV has been done at the CERN T10 beam line. The PSD supermodule is 3x3 array of 9 modules. Each module has transverse dimensions of 20x20 cm2 and longitudinal dimension of 5.6 interaction lengths. The modules have sandwich structure of 60 lead/scintillator layers with the sampling ratio 4:1. Light from each scintillator plate is collected by a WLS fiber. Scintillator light from 6 consecutive scintillator plates (one longitudinal section) is detected by a 3x3 mm2 Hamamatsu MPPC placed at the end of the module. In total, 10 MPPCs are used to detect light from 10 longitudinal sections in each module. Preliminary results on the longitudinal profile of energy deposition, linearity of the response and energy resolution of the supermodule are discussed

Hadron calorimeter with MAPD readout in the NA61/SHINE experiment

The modular hadron calorimeter with micro-pixel avalanche photodiodes readout for the NA61/SHINE experiment at the CERN SPS is presented. The calorimeter consists of 44 independent modules with lead-scintillator sandwich structure. The light from the scintillator tiles is captured by and transported with WLS-fibers embedded in scintillator grooves. The construction provides a longitudinal segmentation of the module in 10 sections with independent MAPD readout. MAPDs with pixel density of $~10^{4}$/mm$^2$ ensure good linearity of calorimeter response in a wide dynamical range. The performance of the calorimeter prototype in a beam test is reported