Multifragmentation of the system
α +
197
Au
has been studied at incident energies of 1 and 3.6 GeV/nucleon with the new 4π setup, “FASA”. A very high mean IMF multiplicity of 〈
M〉
IMF
=5.1 ± 0.8 is ...observed at the higher incident energy. Applying the statistical multifragmentation model of Gross, a breakup density
ϱ
ϱ
0
of about
1
7
is deduced from the relative velocity between two IMFs at large relative angles. The excitation energy increases from 4.5 MeV/nucleon at the lower beam energy to 5.5 MeV/nucleon at the higher beam energy. The time difference between the emission of two IMFs is less than 100 fm/c, justifying to call this process a simultaneous breakup.
In the paper experimental data showing the magnetic field distribution in the hydrocyclone working chamber according to radius and height have been presented. One of the most important parameter of ...magnetic hydrocyclones is the distribution of the magnetic field along the radius and height of the working chamber necessary to calculate the coagulation and magnetic forces that act on the particle or the flocculation. The magnetic field intensity has been calculated by the magnetic intensity measured by the magnetometer at regular intervals and with different values of DC supply. The resulting values of the magnetic intensity have been presented in graphs. Data that show the distribution of the magnetic field in the hydrocyclone working chamber are the same as those published in domestic and foreign scientific journals. There are several data points that do not fit in the relationship caused by non-ideal manufacturing apparatus and the procedure measuring the magnetic field. Field distribution curves received by the previously found dependencies have been constructed; correlation coefficients have been calculated and proved that analyzed dependence can be used in further calculations forces coagulation and magnetic force as theoretical and experimental data are in good agreement. In most of the hydrocyclone height the field can be considered constant by height and radius and sufficient for the coagulation of the magnetic particles. The change of the magnetic field has been considered where the outer part of the magnetic circuit is not formed whole but in the form of vertical strips. The research has shown that the area with the minimum field strength is enough to not only save the already formed floccules, but also to continue the process of floccule formation.
The relative velocity correlation function of pairs of intermediate mass fragments has been studied for d+Au collitions at 4.4 GeV. Experimental correlation functions are compared to that obtained by ...multibody Coulomb trajectory calculations under the assumption of various decay timees of the fragmenting system. The combined approach with the empirically modified intranuclear cascade code followed by the statistical multifragmentation model was used to generate the starting conditions for these calculations. The fragment emossion time is found to be less than 40 fm/c.
In October 2021, 59 scientists from 14 countries and 13 U.S. states collaborated virtually in the Third Annual Baylor College of Medicine & DNANexus Structural Variation hackathon. The goal of the ...hackathon was to advance research on structural variants (SVs) by prototyping and iterating on open-source software. This led to nine hackathon projects focused on diverse genomics research interests, including various SV discovery and genotyping methods, SV sequence reconstruction, and clinically relevant structural variation, including SARS-CoV-2 variants. Repositories for the projects that participated in the hackathon are available at https://github.com/collaborativebioinformatics.
Critical temperature Tc for the nuclear liquid-gas phase transition is stimated both from the multifragmentation and fission data. In the first case,the critical temperature is obtained by analysis ...of the IMF yields in p(8.1 GeV)+Au collisions within the statistical model of multifragmentation (SMM). In the second case, the experimental fission probability for excited 188Os is compared with the calculated one with Tc as a free parameter. It is concluded for both cases that the critical temperature is higher than 16 MeV.
The interactive multidisciplinary aircraft design code was used for numerical simulation of Tupolev-204 airplane in-flight flutter tests. Dynamic structure loading is generated by symmetric and ...antisymmetric harmonic excitation of spoilers with smooth frequency sweep from 1 to 5 Hz. Major features of theoretical approach are described. Calculated and experimental results are compared. The influence of unsteady aerodynamic forces and onboard control system on dynamic loading of elastic structure is shown.
Objective: to study the intraocular pressure (IOP) in patients with primary open-angle glaucoma during the treatment with hypotensive drugs depending on age, medical history, stage of disease and the ...central thickness of the cornea. Material and methods. 812 right eyes of 812 patients were examined, 637 of 812 were glaucoma patients and 175 healthy people of the control group. Results. The level of the intraocular pressure was significantly higher in patients with severe glaucoma than in patients with moderate glaucoma or healthy people. There was no significant difference in the central corneal thickness between glaucoma patients and healthy people (both male and female). The IOP level was higher in the group of patients treated with non-fixed combination of beta-blockers and prostaglandins regardless of the disease stage. The IOP compensation was found in 69.9 % of patients with moderate glaucoma and 14.4 % of patients with severe glaucoma. Conclusion. The results of the study can be used as clinical guidelines for determination of the optimal IOP range while choosing the optimal IOP-lowering medications at the start of therapy and during the follow-up of patients with moderate and severe glaucoma.
Objective: to determine the efficiency of the treatment for glaucoma and its accompanying costs in patients with II-III stages of open-angle glaucoma. Material and methods. The multicenter study ...which was conducted by 35 investigators in 29 clinical centers in 4 CIS countries from December 2013 to April 2014 took into account the results of the treatment of 115 patients (187 eyes) with glaucoma. The cost and «cost-effectiveness» of the intraocular pressure (IOP)-lowering treatment were calculated with the account of IOP-level compensation. Results. The average cost-effectiveness was 13.94 ± 0.66 rubles/day, which was comparable to the theoretical cost of the treatment but 32 % exceeded the price that patients actually paid for the treatment. As for the monotherapy with prostaglandin preparations and the fixed combination of beta-adrenoblocker and prostaglandin analogue (BB + PG), the difference between the actual price and cost-effectiveness was 44 %. At the same time, this difference in the application of the fixed combination of beta-adrenoblocker and carbonic anhydrase inhibitor (BB + CAI) made up 64 %. Conclusion. It is cheaper to achieve a controlled IOP level in the application of the fixed combination BB + PG compared to the BB + CAI fixed combination treatment.
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