Breit - Wigner parameters of nucleon resonance S11(1535)

The result of partial - wave analysis of angular distributions for the process gamma+p -> eta +p at the energies upto 2 GeV are given. From the energy dependence of the regression coefficient a0(W) the reliable estimates of Breit - Wigner parameters of S11(1535) - resonance and energy dependence of real and imagenery parts of electric dipol amplitude E0+ and its phase were obtainedComment: 12 pages, 11 figure

Elastic Charge Form Factors of π\pi and K Mesons

The elastic charge form factors of the charged $\pi$ and $K$ mesons are calculated in modified impulse approximation using instant form of relativistic Hamiltonian dynamics. Our approach gives pion and kaon electromagnetic form factors in the large range of momentum transfer. The results are in good agreement with the available data. Relativistic effects are large at all values of momentum transfers. The pion and kaon form factors at large $Q^2$ depend strongly on the choice of model. The experiments on pion form factor at large momentum transfer planned at CEBAF will choose between such models. In the case of kaon such a choosing may be performed only if supplemented by accurate measurements of kaon MSR.Comment: 9 pages, LaTeX, 2 uuencoded PostScript figure

Asymptotic estimation of some multiple integrals and the electromagnetic deuteron form factors at high momentum transfer

A theorem about asymptotic estimation of multiple integral of a special type is proved for the case when the integrand peaks at the integration domain bound, but not at a point of extremum. Using this theorem the asymptotic expansion of the electromagnetic deuteron form factors at high momentum transfers is obtained in the framework of two-nucleon model in both nonrelativistic and relativistic impulse approximations. It is found that relativistic effects slow down the decrease of deuteron form factors and result in agreement between the relativistic asymptotics and experimental data at high momentum transfers.Comment: 16 pages, 1 figur

Benz(a)pyrene content in soil and medicinal plants of Perm Krai (Russian Federation)

The article investigates the content of benz(a)pyrene in the soil and leaves of the medicinal plant Plantago magorL. growing in the Perm Territory at different distances from a major highway. The authors found an increase in the concentration of benz(a)pyrene in the soil and in the leaves of Plantago major L. during three years from 2019 to 2021. This is associated with the increase in traffic intensity along the Perm-Ilyinsky highway. The article shows a tendency to decrease the concentration of benz(a)pyrene in all soil samples and leaves of the plant has as distance from the highway. The authors give recommendations regarding the harvesting of leaves of the medicinal plant Plantago major L. in Ilyinsky district, which is advisable to grow at a distance of at least 500 m from the highway

Form Factors of Composite Systems by Generalized Wigner-Eckart Theorem for Poincar\'e group

The relativistic approach to electroweak properties of two-particle composite systems developed previously is generalized here to the case of nonzero spin. This approach is based on the instant form of relativistic Hamiltonian dynamics. A special mathematical technique is used for the parametrization of matrix elements of electroweak current operators in terms of form factors. The parametrization is a realization of the generalized Wigner--Eckart theorem on the Poincar\'e group, form factors are corresponding reduced matrix elements and they have the sense of distributions (generalized functions). The electroweak current matrix element satisfies the relativistic covariance conditions and in the case of electromagnetic current it also automatically satisfies the conservation law.Comment: Submitted to Theor. Math. Phy

Complications of BCG vaccination: modification of the statistical procedure

There is no uniform method to conduct the epidemiological monitoring of BCG complications in the Russian Federation, Current indicators of BCG complications include the number of complication cases (cases registered within two years after vaccination) and the total number of the vaccinated children. Our aim is to discover a new indicator of BCG complications and to compare it with the indicators of the existing methods, The comparative analysis of new and existing methods of all complication cases (continuous sampling, n = 110) was conducted in the Irkutsk Region (Eastern Siberia) from 2005 to 2014, The calculating formula included the ratio of the number of children with complications vaccinated in the analyzed year to 100,000 children vaccinated in the same year, The new method shows the advantages over the existing methodological approaches, It demonstrates more adequate assessment, expressed in the highest approximation coefficient of trend model compared to the other methods, and stability of indicator over the years, The incidence of complications in the Irkutsk Region has a steady decreasing linear trend and a significant negative growth rate of the indicator (-17,9 %), The new method offers an adequate assessment and can be used as an epidemiological control system not only in the Russian Federation but in other high TB-burden countries with massive BCG vaccination of children

Forms and methods of student government: past and present

Данная статья посвящена студенческому самоуправлению и его роли в жизни современного общества. Авторы исследовали вопросы, связанные с восприятием обществом студенческого самоуправления и трансформацию его форм и методов. Статья обращает внимание на значение организаций студенчества в процессе модернизации России.This article focuses on the student’s government and its role in modern society. Authors found the questions, which are related to the spirit of society of the student’s government and transformation of the form and methods. The article tells about meaning organizations of student’s in the process of modernizing Russia

ECONOMIC BENEFITS OF LEFT VENTRICULAR HYPERTROPHY REGRESSION IN PATIENTS WITH ARTERIAL HYPERTENSION

Aim. To evaluate by modelling the economic benefits of left ventricular hypertrophy (LVH) regression in patients with arterial hypertension (HT) due to therapy with fixed combination of valsartan/amlodipine.  Material and methods. 20 patients (15 females and 5 males, aged 18 to 70 years) with essential HT accompanied by metabolic syndrome with a history of previous ineffective antihypertensive therapy were included into the study. All patients were treated with fixed combination of amlodipine/valsartan in doses of 5/160 and 10/160 mg depending on blood pressure (BP) level. Treatment duration was 24 weeks. Changes in BP level, LVH regression were assessed. Economic evaluation was performed on the basis of modelling with the specialized software Decision Tree 4.xla. Results. Effect of fixed amlodipine/valsartan combination therapy on LVH was used to estimate treatment effectiveness and to build the model. Patients were distributed according to left ventricular (LV) mass (at baseline and after 24 weeks of therapy). Significant decrease in LV mass from 205.8±50.4 to 181.9±45.1 g (p<0.05) was revealed. The model took into account economic and frequency factors for 10 year prognosis: this therapy prevents 36 deaths, 6 strokes, 24 myocardial infarction per 1000 patients. Absence of need in treatment of these prevented events can save 2 516 772.42 RUR for every 1 000 patients. It would reduce the total costs per patient during 10 years. Conclusion. Treatment with amlodipine/valsartan single pill combination has not only clinical advantages, but also pharmacoeconomic benefits. This combination reduces risk of acute myocardial infarction and death more effectively. Treatment with fixed valsartan/amlodipine combination saves maximum years of life with less cost during 10 years. Despite of higher pharmacotherapy costs, fixed valsartan/amlodipine combination reduces total costs due to prevention of fatal and nonfatal cardiovascular events