834 research outputs found

    Comparison of Partial Floras of Communication: Tape Habitats in the Cities of the Southern Part of Udmurtia

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    The purpose of this study is to establish the similarities and differences between the combined partial flora of railways and highways in the cities of the southern half of Udmurtia. Studies were accomplished by the partial floras and route methods. The combined partial flora of railways contains the greatest number of species – 648.Adventive species comprise 61% of the total. As such, the abundance of the flora of railways depends on the presence of pathways of alien species (Mozhga – 485 species, Kambarka – 439, Votkinsk – 300). The flora of the city roads is represented by 512 species. The greatest variety of flora is found in the partial flora of the Kambarka highways (376 species): There are less in Votkinsk and Mozhga (348 and 350 species, respectively). The aboriginal portion (199 species, 53%) makes a significant contribution to the diversity of the partial flora of the Kambarka highways. This is due to the peculiarities of the physiographic and administrative characteristics of the cities. Keywords: partial flora, communication-tape habitats, urban flora, flora of the Udmurt Republic, invasive plant

    Para a questão de avaliar a credibilidade da empresa por bancos comerciais russos

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    Credit in the economy plays a double role, since it is a source of development for organizations (acquisition of fixed assets, modernization and reconstruction of production, launching of new projects, as well as the replacement of working capital) and an instrument for the generation of income for the bank and, in general, its main activity. To analyze the differences in the industry, we selected 30 companies. On the basis of its financial statements, we calculate the liquidity indices, the profitability of sales and the turnover of accounts payable and accounts receivable. The results showed that the reliability and financial stability of the clients reduce the bank risks, help the bank to obtain a higher income. It is considered that the bank deals not only with high-level customers: there are also customers among them who experience financial difficulties due to inadequate production organization, poor market research or poorly chosen strategy. The ability to correctly identify the client's capabilities, recognize their strengths and weaknesses is an important task for credit institutions. Therefore, these analytical indicators allow to objectively evaluate the creditworthiness of the borrower. However, in addition to the analysis of the financial ratios, it is necessary to evaluate the quality parameters, that is, analyze the client's credit history, the period of his service in the bank, the quality of the administration, his dependence on the suppliers and customers, and credit security.El crédito en la economía desempeña un doble papel, ya que es una fuente de desarrollo para las organizaciones (adquisición de activos fijos, modernización y reconstrucción de la producción, lanzamiento de nuevos proyectos, así como la reposición del capital de trabajo) y un instrumento para la generación de ingresos para el banco y, en general, su actividad principal. Para analizar las diferencias de la industria, seleccionamos 30 empresas. Sobre la base de sus estados contables (financieros), calculamos los índices de liquidez, la rentabilidad de las ventas y el volumen de negocios de las cuentas por pagar y las cuentas por cobrar. Los resultados demostraron que la confiabilidad y la estabilidad financiera de los clientes reducen los riesgos bancarios, ayudan al banco a obtener un ingreso más alto. Se considera que el banco trata no solo con los clientes de alto nivel: también hay clientes entre ellos que experimentan dificultades financieras debido a una producción inadecuada organización, pobre investigación de mercado o una estrategia mal elegida. La capacidad de identificar correctamente las capacidades del cliente, reconocer sus fortalezas y debilidades es una tarea importante para las instituciones de crédito. Por lo tanto, estos indicadores analíticos permiten evaluar objetivamente la solvencia crediticia del prestatario. Sin embargo, además del análisis de los ratios financieros, es necesario evaluar los parámetros de calidad, es decir, analizar el historial crediticio del cliente, elperíodo de su servicio en el banco, la calidad de la administración, su dependencia de los proveedores y clientes, y seguridad crediticia.O crédito na economia desempenha um papel duplo, uma vez que é uma fonte de desenvolvimento para as organizações (aquisição de ativos fixos, modernização e reconstrução da produção, lançamento de novos projetos, bem como a substituição do capital de giro) e um instrumento para a geração de renda para o banco e, em geral, sua principal atividade. Para analisar as diferenças na indústria, selecionamos 30 empresas. Com base em suas demonstrações financeiras, calculamos os índices de liquidez, a rentabilidade das vendas e o giro das contas a pagar e contas a receber. Os resultados mostraram que a confiabilidade e a estabilidade financeira dos clientes reduzem os riscos bancários, ajudando o banco a obter uma receita maior. Considera-se que o banco lida não apenas com clientes de alto nível: há também clientes entre eles que enfrentam dificuldades financeiras devido à organização inadequada da produção, pesquisa de mercado deficiente ou estratégia mal escolhida. A capacidade de identificar corretamente as capacidades do cliente, reconhecer seus pontos fortes e fracos é uma tarefa importante para as instituições de crédito. Portanto, esses indicadores analíticos permitem avaliar objetivamente a qualidade de crédito do tomador de empréstimo. No entanto, além da análise dos índices financeiros, é necessário avaliar os parâmetros de qualidade, ou seja, analisar o histórico de crédito do cliente, o período de seu atendimento no banco, a qualidade da administração, sua dependência dos fornecedores e clientes e segurança de crédito

    A prebreeding study of introgression spring bread wheat lines carrying combinations of stem rust resistance genes, Sr22+Sr25 and Sr35+Sr25

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    The Sr22, Sr35, and Sr25 genes attract the attention of bread wheat breeders with their effectiveness against Puccinia graminis f. sp. tritici race Ug99 and its biotypes. The effectiveness and impact of Sr22+Sr25 and Sr35+Sr25 gene combinations on agronomic traits have not yet been studied. In the present article, these traits were studied using the spring bread wheat lines L503/W3534//L503, L503/Sr35//L503/3/L503 carrying the Sr22+Sr25 and Sr35+Sr25 genes during 2016–2020. These lines were assessed for resistance to P. graminis f. sp. tritici under natural epiphytotics and to the Saratov, Lysogorsk and Omsk populations of the pathogen and to the PgtZ1 (TKSTF) and PgtF18.6 fungus isolates in laboratory conditions (TKSTF + Sr33). The presence of the studied Sr-genes was confirmed by using molecular markers. Prebreeding studies were conducted during 2018–2020 vegetation periods. Under the natural epiphytotics of the pathogen and in the laboratory conditions, the Sr22+Sr25 combination was highly effective, while Sr35+Sr25 was ineffective. For grain yield, the lines with the Sr22+Sr25 and Sr35+Sr25 genes were superior to the recipient cultivar L503 in one year (Sr22+Sr25 in 2019; Sr35+Sr25 in 2018), with a decrease in 2020, but in general there were no differences. For the period 2018–2020, both combinations showed a decrease in 1000 grains weight and an increase in the germination-earing period. The line with Sr22+Sr25 genes showed insignificant effects on gluten and dough tenacity, but the ratio of dough tenacity to extensibility was higher, and flour strength, porosity and bread volume were lower; in the line with Sr35+Sr25 genes, the gluten content was lower, but the strength, tenacity of the dough and the ratio of dough tenacity to extensibility were higher, flour strength and the porosity of the bread were at the recipient level, but the volume of bread was lower

    Molecular identification of the stem rust resistance genes in the introgression lines of spring bread wheat

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    A total of 57 introgression lines and 11 cultivars of spring bread wheat developed by All-Russian Institute of Plant Protection and cultivated in the Volga Region were analyzed. The lines were obtained with the participation of CIMMYT synthetics, durum wheat cultivars, direct crossing with Agropyron elongatum (CI-7-57) and have introgressions from related species of bread wheat, namely translocations from Ag. elongatum (7DS-7DL-7Ae#1L), Aegilops speltoides (2D-2S), Ae. ventricosum (2AL-2AS-2MV#1), Secale cereale (1BL-1R#1S), 6Agi (6D) substitution from Ag. intermedium and triticale Satu. Cultivars and lines were assessed for resistance to Saratov, Lysogorsk, Derbent and Omsk stem rust pathogen populations (Puccinia graminis f. sp. tritici), and analyzed for the presence of the known Sr resistance genes using molecular markers. The analysis of the cultivars’ and lines’ resistance to the Saratov pathogen population in the field, as well as to Omsk, Derbent and Lysogorsk populations at the seedling stage, showed the loss of efficiency of the Sr25 and Sr6Agi genes. The Sr31 gene remained effective. Thirty one wheat lines out of 57 (54.4 % of samples) were resistant to all pathogen populations taken into analysis. The Sr31/Lr26, Sr25/Lr19, Sr28, Sr57/Lr34 and Sr38/Lr37 genes were identified in the introgression lines. The Sr31/Lr26 gene was identified in 19 lines (33.3 % of samples). All lines carrying the 1RS.1BL translocation (Sr31/Lr26) were resistant to all pathogen populations taken into analysis. The Sr25/Lr19 gene was identified in 49 lines (86 %). The gene combination Sr31/Lr26+ Sr25/Lr19 was identified in 15 lines (26.3 %). The gene combinations Sr38/Lr37+Sr25/Lr19, Sr57/Lr34+Sr25/Lr19 and Sr31/Lr26+Sr25/Lr19+Sr28 were identified in 3 introgression lines. These three lines were characterized by resistance to the pathogen populations studied in this work. The Sr2, Sr24, Sr26, Sr32, Sr36 and Sr39 genes were not detected in the analyzed wheat lines

    Analysis of resistance to stem rust and identification of <i>Sr</i> genes in introgressive lines of spring bread wheat

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    Background. Due to the increase in the harmfulness of wheat stem rust (Puccinia graminis f. sp. tritici Erikss. &amp; E. Henn.) in the Volga region, and the likelihood of the spread of the aggressive Ug99 race, an assessment of the genetic diversity of wheat breeding lines and identification of effective Sr genes are of fundamental importance.Materials and methods. Ninety spring bread wheat introgressive lines with stem rust resistance, developed at the Federal Center of Agriculture Research of the South-East Region, were analyzed. Molecular markers were used to identify resistance genes: Sr24/Lr24, Sr25/Lr19, Sr26, Sr28, Sr31/Lr26, Sr32, Sr36, Sr38/Lr37, Sr39 and Sr57/Lr34. The analysis of plants for resistance was carried out according to standard methods; the Stakman scale was applied to determine the type of reaction.Results. The genes Sr31/Lr26, Sr25/Lr19, Sr57/Lr34, Sr38/Lr37 and Sr39/Lr35 were identified in the analyzed breeding lines. Sr25 was found in 51 lines (56,7% of samples), Sr31 in 41 lines (45.6%), Sr57/Lr34 in 5 lines, Sr38 in 10 lines and Sr39 in one line. Combinations of resistance genes were identified: Sr31+Sr25 in 28 lines (31.1%), Sr25+Sr38 in 5 lines, and Sr25+Sr39 in one line. The Sr24/Lr24, Sr26, Sr28, Sr32 and Sr36 genes were not identified.Conclusion. As a result, promising highly resistant introgressive wheat lines with promising combinations of Sr31+Sr25, Sr25+Sr38 and Sr25+Sr39 genes were identified. They can be used in Russian breeding programs for immunity

    APPROACHES TO THE FUTURE ENGINEERS FOREIGN COMMUNICATIVE CULTURE FORMATION

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    Purpose: The main aim of the article is to define the approaches to the formation of future engineers’ communicative culture. The main research method used while working on the article is analysis of the domestic and foreign publication space for critical consideration of different ideas on the pedagogical problem of the future engineers’ foreign language communicative culture formation process. Methodology: In this study Content abstraction, generalization and the comparative method was applied. Result: The approaches (cultural, connectivism, technological, axiological, communicative, environmental approach) will help to the formation of the communicative culture of future engineers in the process of foreign language training. Applications: This research can be used for engineers and companies. Novelty/Originality: In this research, the model of approaches to future engineers' foreign communicative culture formation is presented in a comprehensive and complete manner

    Lithologic-facies and paleogeographic features of Mid-Upper Jurassic oil-gas bearing sediments in Nurolsk depression (Western Siberia)

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    Bathonian-Callovian-Oxfordian sedimentation environment reconstruction in SE Nurolsk depression, Western Siberia has been described. Paleogeographic and litho-geochemical features of sediments, numerous plant remains and ichnofossils indicated the fact that this territory during the Naunaksk suite formation was the transition in-situ sedimentogenesis. Based on the integrated research data, the potential litho-facies were identified in the Mid-Upper sediments within Nurolsk depression, Western Siberia

    Mycoplasmas and their antibiotic resistance: The problems and prospects in controlling infections

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    © 2016 Park-media, Ltd.The present review discusses the problem of controlling mycoplasmas (class Mollicutes), the smallest of self-replicating prokaryotes, parasites of higher eukaryotes, and main contaminants of cell cultures and vaccines. Possible mechanisms for the rapid development of resistance to antimicrobial drugs in mycoplasmas have been analyzed. Omics technologies provide new opportunities for investigating the molecular basis of bacterial adaptation to stress factors and identifying resistomes, the total of all genes and their products contributing to antibiotic resistance in microbes. The data obtained using an integrated approach with post-genomics methods show that antibiotic resistance may be caused by more complex processes than has been believed heretofore. The development of antibiotic resistance in mycoplasmas is associated with essential changes in the genome, proteome, and secretome profiles, which involve many genes and proteins related to fundamental cellular processes and virulence
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