36 research outputs found

    Гельминты алтайского цокора Myospalax myospalax Laxmann, 1773 (Rodentia: Spalacidae) на северной периферии ареала

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    Objective of research: The purpose of our research was to study the diversity of parasitic worms of the Altai zokor Myospalax myospalax, Asian endemic rodent, in the northern part of the range. Materials and methods: In summer 2013-2015, 26 specimens of the Altai zokor from eight localities of the south part of the Tomsk region were examined by complete helminthological dissection of individual organs. Results and discussion: Four helminth species were registered in the investigated area: nematode Heligmoptera sibirica, cestodes Versteria mustelae larva and Paranoplocephala sp., as well as the acanthocephalan Moniliformis clarki. Previously discovered species except H. sibirica, were not detected in the Altai zokor. Altogether, taking into account the present study, in M. myospalax were registered 6 species of parasitic worms from which nematodes of the genus Heligmoptera are dominant and narrowly specific parasites of zokors.Цель исследования: изучить видовое разнообразие паразитических червей у алтайского цокора Myospalax myospalax, эндемичного азиатского грызуна, в северной части ареала. Материалы и методы: Методом полного гельминтологического исследования отдельных органов в летний сезон 2013-2015 гг было исследовано 26 экземпляров алтайского цокора в восьми местообитаниях на юге Томской области. Результаты и обсуждение: В исследованном районе зарегистрировано паразитирование четырех видов гельминтов: нематода Heligmoptera sibirica, цестоды Versteria mustelae larva и Paranoplocephala sp., а также скребень Moniliformis clarki. Ранее, обнаруженные виды, за исключением H. sibirica, у алтайского цокора не регистрировались. Всего, с учетом данного исследования, для M. myospalax известно 6 видов паразитических червей, из которых нематоды рода Heligmoptera являются доминирующими и узкоспецифичными паразитами цокоров

    Silver(I) coordination compounds with polydentate pyrimidine ligands: thermochromism of luminescence

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    The main goal of this work is to study how the substituent in position 2 of the pyrimidine ring affects both luminescent properties and structures of silver(I) complexes. A series of coordination compounds, [AgL1NO3], [AgL1X]n, [Ag2(L2)2X2] (X = I, Br, Cl–), [AgL1(PPh3)Y] (Y = CF3SO3, BF4, NO3), [AgL3NO3·CH3CN]n, have been synthesized and structurally characterized. According to the X-ray single data, the complexes [AgL1NO3], [AgL1(PPh3)Y] adopt mononuclear structures; the complexes [Ag2(L2)2X2] are binuclear; [AgL1X]n and [AgL3NO3·CH3CN]n are polymeric compounds.The research was supported by the President of the Russian Federation Grant for young scientists МК-1219.2020.3; by Russian Foundation for Basic Research and the government of the Novosibirsk region of the Russian Federation, grant № 18–43–540016 r_a

    Temperature and excitation wavelength dependent emission of silver(I) complexes with an aminopyrimidine ligand

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    The research was supported by the President of the Russian Federation Grant for young scientists МК-1219.2020.3; by Russian Foundation for Basic Research and the government of the Novosibirsk region of the Russian Federation, grant № 18–43–540016 r_a

    Helminths of Altai zokor Myospalax myospalax Laxmann, 1773 (Rodentia: Spalacidae) in the northern periphery of the area

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    Objective of research: The purpose of our research was to study the diversity of parasitic worms of the Altai zokor Myospalax myospalax, Asian endemic rodent, in the northern part of the range. Materials and methods: In summer 2013-2015, 26 specimens of the Altai zokor from eight localities of the south part of the Tomsk region were examined by complete helminthological dissection of individual organs. Results and discussion: Four helminth species were registered in the investigated area: nematode Heligmoptera sibirica, cestodes Versteria mustelae larva and Paranoplocephala sp., as well as the acanthocephalan Moniliformis clarki. Previously discovered species except H. sibirica, were not detected in the Altai zokor. Altogether, taking into account the present study, in M. myospalax were registered 6 species of parasitic worms from which nematodes of the genus Heligmoptera are dominant and narrowly specific parasites of zokors

    Complex homeopathic therapy of acute infectious rhinitis

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    The article is devoted to the use of the combined drug Coryzalia in the treatment of acute rhinitis. The advantages of Coryzalia are the possibility of using it at any stage of treatment, combination with other drugs. The complex of active ingredients that make up the drug, has anti-inflammatory, antisecretory and detoxifying effects. The results of various studies confirm the high safety profile and efficacy of Coryzalia not only for adults, but also for treatment of children

    SECRETOLITHIC THERAPY OF ACUTE SINUSITIS

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    The article addresses matters related to epidemiology, pathogenesis, clinical features and treatment of acute sinusitis. It also addresses in more detail the issues of secretolithic therapy of this disease, in particular, the use of the combination herbal drug Sinupret®. Here you can find the characteristics of this drug, its mechanism of action and its biological properties.The article presents the results of clinical studies of the drug conducted by the Moscow State University of Medicine and Stomatology in 2011,  the Department of Otorhinolaryngology of the Medical Faculty of the FGBOU VPO  Russian Peoples’ Friendship University in 2011, and the studies conducted by the Italian and German scientists in 2015.The following conclusions are drawn: a high safety profile and good efficacy of the drug allow us to recommend Sinupret® for the treatment of acute sinusitis in adults and children

    Hot Consolidation of Titanium Powders

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    A novel method of the hot consolidation metal powders with shear deformation is proposed. The powders were encapsulated into tight containers and compacted after short-term heating in a furnace preheated to 900 °C. The method prevents powder oxidation, peripheral spalling and ensures the removal of the oxide films from the powder surfaces. Commercial titanium powders of different dispersivities and impurity concentrations were hot-compacted. The microstructure, hardness and bending strength of the compacts were investigated. The compacts from fine PTOM-1 powder, containing 0.32% of hydrogen, reveal the greatest values of the hardness and bending strength. Additional annealing results in 60% increase in the bending strength
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