Alex Bogatyrev

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An approach to the analysis of isotherms of cooperative binding is developed that allows to calculate approximately affinity profiles, i.e. dependencies of binding constants on binding densities. The comparison of the affinity profiles of the interactions of Ca2+ and Sr2+ ions with sodium pectate as well as sodium alginates with the different content of the(More)
BACKGROUND Diarrhea associated with enteral nutrition has been attributed to excessive FODMAP (fermentable oligosaccharides, disaccharides, monosaccharides, and polyols) content of formulas. This study aimed to readdress their FODMAP content by measuring fermentation-specific effects after a formula load in healthy participants and by defining issues with(More)
Using data collected by the HERA-B experiment, we have measured the fraction of J/ψ’s produced via radiative χc decays in interactions of 920 GeV protons with carbon and titanium targets. We obtained Rχc = 0.32 ± 0.06stat ± 0.04sys for the E-mail address: zoccoli@bo.infn.it (A. Zoccoli). 1 Deceased. 2 Visitor from Dipartimento di Energetica dell’ Università(More)
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We have searched for Theta+(1540) and Xi(--)(1862) pentaquark candidates in proton-induced reactions on C, Ti, and W targets at midrapidity and square root of s = 41.6 GeV. In 2 x 10(8) inelastic events we find no evidence for narrow (sigma approximately 5 MeV) signals in the Theta+ --> pK0(S) and Xi(--) --> Xi- pi- channels; our 95% C.L. upper limits (UL)(More)
A measurement of the polarization of Λ and Λ̄ baryons produced in pC and pW collisions at √ s = 41.6 GeV has been performed with the HERA-B spectrometer. The measurements cover the kinematic range of 0.6 GeV/c < p⊥ < 1.2 GeV/c in transverse momentum and −0.15 < xF < 0.01 in Feynman-x. The polarization results from the two different targets agree within the(More)
The effect of polypeptides isolated from cattle abomasum on regenerative processes of rat stomach upon simulating stomach mucosal damage caused by aspirin was studied. Experimental research was carried out on male Wistar rats with initial body weight of 230±20 g. The duration of the experiment was 22 days. The rats were divided into 4 equal groups (n=11).(More)