Statistical characteristics of observed Ly-α\alpha forest and the shape of linear power spectrum

Properties of $\sim$ 6 000 Ly-$\alpha$ absorbers observed in 19 high resolution spectra of QSOs are investigated using the model of formation and evolution of DM structure elements based on the Zel'dovich theory. This model asserts that absorbers are formed in the course of both linear and nonlinear adiabatic or shock compression of dark matter (DM) and gaseous matter. It allows us to link the column density and overdensity of DM and gaseous components with the observed column density of neutral hydrogen, redshifts and Doppler parameters of absorbers and demonstrates that at high redshifts we observe a self similar period of structure evolution with the Gaussian initial perturbations. We show that the colder absorbers are associated with rapidly expanded regions of a galactic scale which represent large amplitude negative density perturbations. We extend and improve the method of measuring the power spectrum of initial perturbations proposed in Demia\'nski & Doroshkevich (2003b). Our method links the observed separations and the DM column density of absorbers with the correlation function of the initial velocity field. We recover the cold dark matter (CDM) like power spectrum at scales 10> D > 0.15Mpc/h with a precision of ~15%. However at scales $\sim 3 - 150 h^{-1}$kpc the measured and CDM--like spectra are different. This result suggests a possible complex inflation with generation of excess power at small scales.Comment: 21 pages, 7 figures, MNRAS submitte

First Release of Gauss-Legendre Sky Pixelization (GLESP) software package for CMB analysis

We report the release of the Gauss--Legendre Sky Pixelization (GLESP) software package version 1.0. In this report we present the main features and functions for processing and manipulation of sky signals. Features for CMB polarization is underway and to be incorporated in a future release. Interested readers can visit http://www.glesp.nbi.dk (www.glesp.nbi.dk) and register for receiving the package

Abdominal Pain in Young Adults

Aim. A study of abdominal pain incidence in young adults in relation to dietary habits and psychological profile for advancement of health-promoting technologies.Materials and methods. An anonymous quiz survey covered 3,634 students enrolled at Omsk State Medical University in higher and secondary vocational education programmes via online use of the GSRS and WHO CINDI programme questionnaires to assess eating patterns and dietary preferences, as well as a brief multifactor personality inventory scale. Respondents with abdominal pain were divided into subcohorts by pain severity according to GSRS scores (mild, moderate or severe pain).Results. Abdominal pain was reported by 2,300 (63.29%) respondents, of whom 1,243 (54.0%) rated symptoms as mild, 996 (43.3%) and 61 (2.7%) — as moderate to severe. Abdominal pain complaints were more frequent in women (2I = 33.96, p <0.001), but gender had no effect on pain intensity. Pain associated with abdominal bloating and distention (57.65%), gastroesophageal reflux symptoms (38.75%), constipation (30.54%) or diarrhoea (28.4%). The presence and severity of abdominal pain was distinctive of individuals spending the most of average monthly income on food purchase and those actively consuming tea, coffee, added sugar, extra salt in cooked food, while having low intake of fruit and vegetables. A typical personality in severe abdominal pain is hypothymic depressive, hypochondriac in moderate and psychasthenic in mild pain.Conclusion. Abdominal pain is common among medical students predominating in females, associates with the eating pattern, dietary habits and psychological profile

The Gauss-Legendre Sky Pixelization for the CMB polarization (GLESP-pol). Errors due to pixelization of the CMB sky

We present developing of method of the numerical analysis of polarization in the Gauss--Legendre Sky Pixelization (GLESP) scheme for the CMB maps. This incorporation of the polarization transforms in the pixelization scheme GLESP completes the creation of our new method for the numerical analysis of CMB maps. The comparison of GLESP and HEALPix calculations is done.Comment: 23 pages, 12 figure

Пищевой статус и структура потребления макронутриентов у больных туберкулезом с различной лекарственной устойчивостью возбудителя

The objective: to assess the nutritional status and actual nutrition of respiratory tuberculosis patients with various drug resistance patterns.Subjects and methods. The actual nutrition of tuberculosis patients was assessed using a standard questionnaire containing questions about the amount of food and meals consumed at home in the last 30 days preceding the survey. Assessment of anthropometric indicators and the survey were carried out by medical workers when the patients were admitted to hospital. Patients were enrolled from April to August 2018 out of 300 respiratory tuberculosis patients who had a positive result of a sputum test for M. tuberculosis. The multidrug resistant tuberculosis group consisted of 222 patients, while the group of those drug susceptible or having mono- or polyresistance included 78 patients.Results. It was found out that the home diet of patients with active respiratory tuberculosis was imbalanced in respect of basic nutrients and energy. The following was detected: lack of protein in the diet (including the one of animal origin) in 80.6 ± 2.3% with a depth of more than 55.7%; excess unbalanced fat consumption in 66.6 ± 2.7%; insufficient consumption of dietary fiber in 45.0 ± 2.8%. Multidrug resistant tuberculosis patients consumed more energy and macronutrients (proteins, fats, dietary fiber, animal protein, cholesterol, and fatty acids) both in absolute terms and relative to individual needs, but at the same time they had worse nutritional status indicators; 37,2% of them had malnutrition of the 1st to 3rd degree. At the same time, patients with multidrug resistant tuberculosis were significantly more often HIV-positive, they had disseminated and chronic tuberculosis, the treatment of which itself lead to a decrease in appetite, malnutrition, metabolic and digestion disorders.Цель исследования: оценка пищевого статуса и фактического питания больных туберкулезом органов дыхания с различной лекарственной устойчивостью возбудителя.Материалы и методы. Оценка фактического питания больных туберкулезом проводилась с использованием стандартного опросника, содержащего вопросы, характеризующие количество потребляемых пищевых продуктов и блюд в домашних условиях в течение последних 30 дней, предшествовавших опросу. Определение антропометрических показателей и опрос проводили медицинские работники в момент поступления пациентов в стационар. Выборка пациентов сформирована в период с апреля по август 2018 г. из 300 больных туберкулезом органов дыхания, выделявших M. tuberculosis. Группу туберкулеза с множественной лекарственной устойчивостью составили 222 больных, группу с сохраненной чувствительностью M. tuberculosis к противотуберкулезным препаратам, а также с моно/полирезистентностью ‒ 78 пациентов.Результаты. Установлено, что домашнее питание больных активным туберкулезом органов дыхания характеризовалось несбалансированностью основных пищевых веществ и энергии. Выявлены: недостаток белка в рационе (в том числе животного происхождения) ‒ у 80,6 ± 2,3% с глубиной более 55,7%; избыточное несбалансированное потребление жиров ‒ у 66,6 ± 2,7%; недостаточное потребление пищевых волокон ‒ у 45,0 ± 2,8%. Больные туберкулезом с множественной лекарственной устойчивостью потребляли больше энергии и макронутриентов (белков, жиров, пищевых волокон, животного белка, холестерина, жирных кислот) как в абсолютном выражении, так и относительно индивидуальной потребности, но вместе с тем имели худшие показатели пищевого статуса, 37,2% лиц имели недостаточность питания 1-3-й степени. При этом больные туберкулезом с множественной лекарственной устойчивостью значимо чаще имели ВИЧ-положительный статус, распространенный и хронический туберкулез, лечение которого само приводит к снижению аппетита, недоеданию, нарушению обмена и усвоения пищевых веществ.Авторы заявляют об отсутствии у них конфликта интересов

Peasant settlers and the ‘civilizing mission’ in Russian Turkestan, 1865-1917

This article provides an introduction to one of the lesser-known examples of European settler colonialism, the settlement of European (mainly Russian and Ukrainian) peasants in Southern Central Asia (Turkestan) in the late nineteenth and early twentieth centuries. It establishes the legal background and demographic impact of peasant settlement, and the role played by the state in organising and encouraging it. It explores official attitudes towards the settlers (which were often very negative), and their relations with the local Kazakh and Kyrgyz population. The article adopts a comparative framework, looking at Turkestan alongside Algeria and Southern Africa, and seeking to establish whether paradigms developed in the study of other settler societies (such as the ‘poor white’) are of any relevance in understanding Slavic peasant settlement in Turkestan. It concludes that there are many close parallels with European settlement in other regions with large indigenous populations, but that racial ideology played a much less important role in the Russian case compared to religious divisions and fears of cultural backsliding. This did not prevent relations between settlers and the ‘native’ population deteriorating markedly in the years before the First World War, resulting in large-scale rebellion in 1916

LONG-TIME NUMERICAL INTEGRATION OF THE THREE-DIMENSIONAL WAVE EQUATION IN THE VICINITY OFAMOVING SOURCE

We propose a family of algorithms for solving numerically a Cauchy problem for the three-dimensional wave equation. The sources that drive the equation (i.e., the right-hand side) are compactly supported in space for any given time; they, however, may actually move inspace with a subsonic speed. The solution is calculated inside a finite domain (e.g., sphere) that also moves with a subsonic speed and always contains the support of the right-hand side. The algorithms employ a standard consistent and stable explicit finite-difference scheme for the wave equation. They allow one to calculate the solution for arbitrarily long time intervals without error accumulation and with the fixed non-growing amount of the CPU time and memory required for advancing one time step. The algorithms are inherently three-dimensional; they rely on the presence of lacunae in the solutions of the wave equation in oddly dimensional spaces. The methodology presented in the paper is, in fact, a building block for constructing the nonlocal highly accurate unsteady artificial boundary conditions to be used for the numerical simulation of waves propagating with finite speed over unbounded domains