195 research outputs found

    SOCIAL INTERACTION OF LARGE BUSINESSES AS A SECURITY CONDITION OF ITS OPERATION AND DEVELOPMENT IN THE NORTHERN REGION

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    Purpose: The aim of the research is to identify social interaction of large businesses as a security condition of its operation and development in the northern region. Methodology: This is descriptive-analytic research whose data are obtained through library studies and analytical resources. Data analysis is based on content analysis and analytical comparison. Result: Results showed that to improve the safety of large businesses in the Northern region continuous socially-oriented activities aimed at improving the quality of life of the population of the region of presence with the support of various social initiatives in the region of presence are required. Applications: This research can be used for businessmen and developers. Novelty/Originality: In this research, the model of social interaction of large businesses is presented in a comprehensive and complete manner

    Digitalization of public governance in the EAEU countries

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    Various aspects of digitalization of public administration in the countries of the Eurasian Economic Union are considered. It is noted that digitalization is spontaneous and comprehensive, and also affects almost all spheres of public relations, including the system of public administration. In this regard, there is a need to develop a joint interstate policy in the field of institutionalization of the processes of digitalization of society. Digitalization is defined as a set of digital transformation of the processes of economic entities and the creation of digital products and services, and not just as digitization - the transfer of data from analog form to digital. In turn, the definition of the term “public administration” can be formulated as a set of mechanisms, processes, relationships and institutions through which citizens of the state, their associations express their interests, exercise their rights and obligations and settle differences. The analysis of the practice of institutionalization of the processes of digitalization of public administration demonstrates the fact that the main regulatory norms and practices in this sphere are fixed within the framework of national target programs.This article analyses the program and target documents of all the member countries of the Eurasian Economic Union, affecting the digitalization regulation processes, the need to institutionalize the processes of digitalization of government and society, as well as the introduction of modern technologies in the practice of public administration. At the same time, the common element of all strategies, concepts and programs is only the digitalization of the process of providing public services, and the other parameters of the target documents are largely different. In this regard, it is required to form a unified model of digitalization of public administration of the Eurasian Economic Union on the basis of a unified strategy

    Amaranth oil application for coronary heart disease and hypertension

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    Cardiovascular disease (CVD) is the Nation's leading killer for both men and women among all racial and ethnic groups. Development and progression of CVD is linked to the presence of risk factors such as hyperlipidemia, hypertension, obesity, and diabetes mellitus. It is known that cholesterol is an indicator of increased risk of heart attack and stroke. Low-density cholesterol (LDL) above 130 mg/dl high-density cholesterol (HDL) cholesterol below 35 mg/dl and total blood cholesterol above 200 mg/dl are indicators of problematic cholesterol. Proper ranges of cholesterol are important in the prevention of CVD. It has been suggested that a reduction in the consumption of saturated and an increase in unsaturated fatty acids is beneficial and prevents CVD. Amaranth grain contains tocotrienols and squalene compounds, which are known to affect cholesterol biosynthesis. The cholesterol precursors squalene, lanosterol and other methyl sterols, reflect cholesterol synthesis [1-3], whereas plant sterols and cholestanol, a metabolite of cholesterol, reflect the efficiency of cholesterol absorption in normal and hyperlipidemic populations [4-6]. Qureshi with co-authors [7] showed that feeding of chickens with amaranth oil decreases blood cholesterol levels, which are supported by the work of others [8]. Previously, we have shown that Amaranth oil modulates the cell membrane fluidity [9] and stabilized membranes that could be one reason as to why it is beneficial to those who consume it. It is known that in hypertension, the cell membrane is defective and hence, the movement of the Na and K ions across the cell membranes could defective that could contribute to the development of increase in blood pressure. Based on these properties of amaranth oil we hypothesize that it could be of significant benefit for patients with CVD

    GENETIC IDENTIFICATION AND PHYLOGENETIC RELATIONSHIPS OF DERMACENTOR SP. TICKS IN IRKUTSK REGION

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    Here we present the results of the analysis of mt16S ribosomal RNA gene of two species of ticks from Irkutsk region - Dermacentor nuttalli and D. silvarum.. The ticks from are closely related to each other with 99-100 % identity of nucleotide sequence of mt16S rRNA gene. The phylogenetic analysis has shown that both species are closely related and. formed the separate clade together with specimens of D. nuttalli and. D. silvarum. from China

    THE FACTORS OF CELLULAR REGULATION OF THE UTERUS CONTRACTIVE ACTIVITY BY PHYSIOLOGICAL ACT OF DELIVERY AND BY UTERINE INERTIA

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    Purpose. To develop a method of prediction of primary uterine inertia on the basis of study of cytokine and vasoactive bioregulator content dynamics.Materials and methods. The material for the research was blood of women taken in the end of gestation (38-40 weeks) and also in the I period of delivery over time from 23 women with physiological act of delivery and from 19 – with uterine inertia.Results. By primary uterine inertia there is an increase of relaxin production by 2 times and a decrease of TNF-α production: before delivery – by 1.5 times, during delivery – by 2 times, relative to the data by physiological delivery. Differently directed changes of TGF-β1 and IL-1β content – increase of the first one and decrease of the second one – are one of the reasons of low generation of nitric oxide as a result of reduction of NO-synthase activity under the action of these cytokines. High level of relaxin neutralizes the endogenous oxytocin action and the decrease of TNF-α and nitric oxide production causes changes in the content of intracellular calcium in myometrium cells.Summary: The detected character of the intracellular regulation disturbance of the uterus contractive activity is a basis for the development of uterine inertia

    Genome variability of domestic tomato varieties: data from AFLP analysis

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    Tomato Solanum lycopersicum L. is one of the main vegetable crops, accessions and cultivars of which are characterized by a low level of genomic polymorphism. Introgressive tomato breeding uses related wild Solanum species to improve cultivars for stress tolerance and fruit quality traits. The aim of this work was to evaluate the genome variability of 59 cultivars and perspective breeding lines of S. lycopersicum and 11 wild tomato species using the AFLP method. According to the AFLP analysis, four combinations of primers E32/M59, E32/M57, E38/M57, and E41/M59, which had the highest PIC (polymorphism information content) values, were selected. In the process of genotyping a collection of 59 cultivars/lines of S. lycopersicum and 11 wild tomato accessions, the selected primers revealed 391 fragments ranging in size from 80 to 450 bp, of which 114 fragments turned out to be polymorphic and 25 were unique. Analysis of the amplification spectra placed wild tomato accessions into separate clades. Sister clades included cultivars of FSCV breeding resistant to drought and/or cold and, in part, to late blight, Alternaria, Septoria, tobacco mosaic virus and blossom end rot, as well as tomato accessions not characterized according to these traits, which suggests that they have resistance to stress factors. In accessions of distant clades, there was clustering on the basis of resistance to Verticillium, cladosporiosis, Fusarium, tobacco mosaic virus, gray rot, and blossom end rot. The combination of accessions according to their origin from the originating organization was shown. The primer combinations E32/M59, E32/M57, E38/M57 and E41/M59 were shown to be perspective for genotyping tomato cultivars to select donors of resistance to various stress factors. The clade-specific fragments identified in this work can become the basis for the development of AFLP markers for traits of resistance to stress factors

    Repositioning the Catalytic Triad Aspartic Acid of Haloalkane Dehalogenase: Effects on Stability, Kinetics, and Structure

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    Haloalkane dehalogenase (DhlA) catalyzes the hydrolysis of haloalkanes via an alkyl-enzyme intermediate. The covalent intermediate, which is formed by nucleophilic substitution with Asp124, is hydrolyzed by a water molecule that is activated by His289. The role of Asp260, which is the third member of the catalytic triad, was studied by site-directed mutagenesis. Mutation of Asp260 to asparagine resulted in a catalytically inactive D260N mutant, which demonstrates that the triad acid Asp260 is essential for dehalogenase activity. Furthermore, Asp260 has an important structural role, since the D260N enzyme accumulated mainly in inclusion bodies during expression, and neither substrate nor product could bind in the active-site cavity. Activity for brominated substrates was restored to D260N by replacing Asn148 with an aspartic or glutamic acid. Both double mutants D260N+N148D and D260N+N148E had a 10-fold reduced kcat and 40-fold higher Km values for 1,2-dibromoethane compared to the wild-type enzyme. Pre-steady-state kinetic analysis of the D260N+N148E double mutant showed that the decrease in kcat was mainly caused by a 220-fold reduction of the rate of carbon-bromine bond cleavage and a 10-fold decrease in the rate of hydrolysis of the alkyl-enzyme intermediate. On the other hand, bromide was released 12-fold faster and via a different pathway than in the wild-type enzyme. Molecular modeling of the mutant showed that Glu148 indeed could take over the interaction with His289 and that there was a change in charge distribution in the tunnel region that connects the active site with the solvent. On the basis of primary structure similarity between DhlA and other α/β-hydrolase fold dehalogenases, we propose that a conserved acidic residue at the equivalent position of Asn148 in DhlA is the third catalytic triad residue in the latter enzymes.

    Expression of Distal-less, dachshund, and optomotor blind in Neanthes arenaceodentata (Annelida, Nereididae) does not support homology of appendage-forming mechanisms across the Bilateria

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    The similarity in the genetic regulation of arthropod and vertebrate appendage formation has been interpreted as the product of a plesiomorphic gene network that was primitively involved in bilaterian appendage development and co-opted to build appendages (in modern phyla) that are not historically related as structures. Data from lophotrochozoans are needed to clarify the pervasiveness of plesiomorphic appendage forming mechanisms. We assayed the expression of three arthropod and vertebrate limb gene orthologs, Distal-less (Dll), dachshund (dac), and optomotor blind (omb), in direct-developing juveniles of the polychaete Neanthes arenaceodentata. Parapodial Dll expression marks premorphogenetic notopodia and neuropodia, becoming restricted to the bases of notopodial cirri and to ventral portions of neuropodia. In outgrowing cephalic appendages, Dll activity is primarily restricted to proximal domains. Dll expression is also prominent in the brain. dac expression occurs in the brain, nerve cord ganglia, a pair of pharyngeal ganglia, presumed interneurons linking a pair of segmental nerves, and in newly differentiating mesoderm. Domains of omb expression include the brain, nerve cord ganglia, one pair of anterior cirri, presumed precursors of dorsal musculature, and the same pharyngeal ganglia and presumed interneurons that express dac. Contrary to their roles in outgrowing arthropod and vertebrate appendages, Dll, dac, and omb lack comparable expression in Neanthes appendages, implying independent evolution of annelid appendage development. We infer that parapodia and arthropodia are not structurally or mechanistically homologous (but their primordia might be), that Dll’s ancestral bilaterian function was in sensory and central nervous system differentiation, and that locomotory appendages possibly evolved from sensory outgrowths
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