BIOCHEMICAL AND MINERAL PARAMETERS IN PIGS OF TWO BREEDS REARED IN LARGE INDUSTRIAL COMPLEXES OF WESTERN SIBERIA

Pig farming has a long tradition in Russian agriculture. The objectives of the present study were to investigate some indicators of blood biochemistry and hematology, and mineral metabolism in pigs (aged 6 months) of Landrace and Kemerovskaya breeds reared and kept in large industrial complexes named “Chistogorsky” and “Altaimyasoprom” (250 thousand heads in each) and to determine differences between two breeds in biochemical, hematological and mineral parameters. The Kemerovskaya breed belonged to local one but the Landrace breed was introduced from Ireland 3 generations ago. Concentrations of albumins, urea and phosphorus were higher in the Landrace breed then in the Kemerovskaya breed. In contrast, there was increased concentration of globulins and AST activity in animals of the Kemerovskaya breed in comparison with the Landrace breed. In addition, there were differences between breeds in some hematological indices and mineral metabolism parameters excluding phosphorus. The average population levels of the parametersinvestigated in two pig breeds could be used as reference values to evaluate animal’s interior at other pig farms in Western Siberia. The selected biochemical indices are recommended to farmers to assess the physiological status of animals in large industrial pig-raising plants

First experimental results obtained using the highpower free electron laser at the siberian center for photochemical research

The first lasing near the wavelength of 140 µm was achieved in April 2003 using a high-power free electron laser (FEL) constructed at the Siberian Center for Photochemical Research. In this paper we briefly describe the design of the FEL driven by an accelerator–recuperator. Characteristics of the electron beam and terahertz laser radiation, obtained in the first experiments, are also presented in the paper.У Сибірському центрі фотохімічних досліджень навесні 2003 року отримана генерація випромінювання з довжиною хвилі 140 мкм на потужному лазері на вільних електронах (ЛВЕ). У роботі коротко описана конструкція ЛВЕ на базі прискорювача рекуператора і представлені результати вимірювання деяких параметрів електронного пучка і терагерцового випромінювання.В Сибирском центре фотохимических исследований весной 2003 года получена генерация излучения с длиной волны 140 мкм на мощном лазере на свободных электронах (ЛСЭ). В работе кратко описана конструкция ЛСЭ на базе ускорителя рекуператора и представлены результаты измерения некоторых параметров электронного пучка и терагерцового излучения

Multiwavelength behaviour of the blazar 3C 279: decade-long study from γ-ray to radio

We report the results of decade-long (2008–2018) γ-ray to 1 GHz radio monitoring of the blazar 3C 279, including GASP/WEBT, Fermi and Swift data, as well as polarimetric and spectroscopic data. The X-ray and γ-ray light curves correlate well, with no delay ≳ 3 h, implying general cospatiality of the emission regions. The γ-ray–optical flux–flux relation changes with activity state, ranging from a linear to a more complex dependence. The behaviour of the Stokes parameters at optical and radio wavelengths, including 43 GHz Very Long Baseline Array images, supports either a predominantly helical magnetic field or motion of the radiating plasma along a spiral path. Apparent speeds of emission knots range from 10 to 37c, with the highest values requiring bulk Lorentz factors close to those needed to explain γ-ray variability on very short time-scales. The Mg ii emission line flux in the ‘blue’ and ‘red’ wings correlates with the optical synchrotron continuum flux density, possibly providing a variable source of seed photons for inverse Compton scattering. In the radio bands, we find progressive delays of the most prominent light-curve maxima with decreasing frequency, as expected from the frequency dependence of the τ = 1 surface of synchrotron self-absorption. The global maximum in the 86 GHz light curve becomes less prominent at lower frequencies, while a local maximum, appearing in 2014, strengthens toward decreasing frequencies, becoming pronounced at ∼5 GHz. These tendencies suggest different Doppler boosting of stratified radio-emitting zones in the jet.First author draf

Mathematical Description of an Asynchronous Motor with the Indirect Control of the Output Mechanical Variables

The article gives the mathematical description of an asynchronous motor with the indirect control of the output mechanical variables of an asynchronous motor in the electric drive. To determine the electromagnetic torque and angular velocity of the asynchronous motor in the electric drive the mathematical description is used in which the values are determined by the readings of the motor and easily measured values by means of known in practice devices. The proposed in the article the mathematical description for the indirect measuring the electromagnetic torque and angular velocity of the asynchronous motor in the electric drive does not contain the integral components that introduce the great error into the value of the controlled electromagnetic torque and angular velocity

Mathematical Description of an Asynchronous Motor with the Indirect Control of the Output Mechanical Variables

The article gives the mathematical description of an asynchronous motor with the indirect control of the output mechanical variables of an asynchronous motor in the electric drive. To determine the electromagnetic torque and angular velocity of the asynchronous motor in the electric drive the mathematical description is used in which the values are determined by the readings of the motor and easily measured values by means of known in practice devices. The proposed in the article the mathematical description for the indirect measuring the electromagnetic torque and angular velocity of the asynchronous motor in the electric drive does not contain the integral components that introduce the great error into the value of the controlled electromagnetic torque and angular velocity

Role of correlation and regression analysis in the diagnosis of cardiovascular desynchronization among locomotive drivers in Russia

Background. The main manifestations of cardiovascular dysfunctions are increase in blood pressure and heart rate and endothelial dysfunctions leading to cardiovascular diseases (CVDs). This work aims to explain the pathophysiological approach of desynchronization for diagnosis of a disease at an early stage. Subjects and Methods. After clearance from the review board of the institute and informed consent from the subjects, 48 locomotive drivers from Chelyabinsk station were examined. The control group included 28 healthy students and employees of RUDN University who were matched by age and sex. The automated pre-trip medical examination system (hardware-software complex KAPD-01-st “system technologies,” St. Petersburg) was used to measure the heart rate (HR), systolic blood pressure (SBP) and diastolic blood pressure (DBP). The control subjects underwent continuous automatic monitoring (TM2421, A & D, Japan) for 2 to 7 days (96-336 measurements each). This method has also been further illustrated by monitoring data of other persons. Regression analysis was used for correlation of desynchronization with manifestations of CVDs. Results. A total of 380-400 observations were made for each of the screened locomotive drivers. Taking into account only the correlation coefficients without determining their statistical significance, hides the possibility of logical errors. If we classify the strength of the correlation as high, medium and weak, the values of the correlation coefficients in the given example could be interpreted as a manifestation of a strong association. However, the regression coefficients, the magnitude of their standard error and the statistical significance of the estimates confirm a very close relationship between SBP and DBP (P = 0.0004). But at the same time they testify to the independence of the HR both from the SBP (P = 0.279) and from the DBP (P = 0.185). The HR at this point of time was almost constant, as it was controlled by a pacemaker implanted earlier. Conclusions. To identify desynchronization, in addition to evaluating the specific rhythms’ parameters, it requires specialized software tools. However, simple methods can be used to ensure the consistency and /or degree of mismatch in physiological functions. The complex correlation and regression analyses of observed phenomena are easily accessible due to technological advancements. © Nova Science Publishers, Inc

Comparative structural and functional characteristics of different forms of saccharomyces cerevisiae red pigment and its synthetic analogue

Structural and functional characteristics of the yeast red pigment (product of polymerization of N'-flí-D-ri-bofuranosyl)-5-aminoimadazole), isolated from adel 1 mutant cells of Saccharomyces cerevisiae, its deribosy-lated derivatives (obtained by acid hydrolysis) and its synthetic pigment analogue (product of polymerization of N'-methyl-5-aminoimadazole in vitro) has been obtained. Products of in vitro polymerization were identified using mass spectrometry. The ability of these pigments to inhibit amyloid formation using insulin fibrils was compared. The entire compounds studied were able to interact with amyloids and inhibit their growth. Electron and atomic force microscopy revealed a common feature inherent in the insulin fibrils formed in presence of these compounds - they were merged into conglomerates that were more stable and resistant to the effects of ultrasound in comparison with insulin aggregates grown without pigments. We speculate that all these compounds can cause coalescence of fibrils, partially block their loose ends and, thereby, inhibit the attachment of new monomers to growing fibril