39 research outputs found

    Plant growth-promoting endophytic bacteria associated with Halocnemum strobilaceum (Pall.) M.Bieb and their plant beneficial traits

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    Halocnemum strobilaceum (Pall.) M.Bieb. is a halophyte desert plant. The plant is known for its antioxidant, antimicrobial, insecticidal and phytoremediation properties. Halocnemum strobilaceum grows in severe salinity and drought conditions and its’ survival can be associated with activity of endophytic bacteria. The aim of the research was to reveal and study plant growth-promoting endophytic bacteria isolated from Halocnemum strobilaceum (Pall.) M.Bieb. The plants were collected from Kyzylkum desert in Uzbekistan. The endophytic bacteria were isolated from Halocnemum strobilaceum (Pall.) M.Bieb. tissues and screened for cotton (Gossypium hirsutum L.) growth-promoting activity. As a result the most active isolates HAST-2, HAST-7, HAST-9, HAST-10 and HAST-17 were selected. The cotton seeds’ inoculation with these bacterial isolates resulted in significant improvement of seeds germination, root and shoot length, and fresh plant weight due to their ability to fix nitrogen, produce indole-3-acetic acid (IAA), 1-aminocyclopropane-1-carboxylate (ACC) deaminase, siderophores and solubilize phosphates. The chosen isolates were identified using 16S rRNA gene analysis and registered in GenBank (NCBI) as Bacillus megaterium HAST-2, Bacillus aryabhattai HAST-7, Pseudomonas plecoglossicida HAST-9, Pseudomonas putida HAST-10 and Pseudomonas chlororaphis HAST-17. These strains can be used as bio-inoculants to improve the growth of cotton and other crops

    Efficiency of an ultrasound sonography in case of appendicular peritonitis among children

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    Sonographic indicators were evaluated: the presence of liquid in peritoneal cavity and its localization; the presence of the peristalsis of intestines; the diameter and the thickness of intestines; accumulation of the liquid and gases in intestines; and movement of the chyme through the intestines. It was found that, 91.2% of sonographic findings were similar, when preoperational indicators of USS were compared with findings of intraoperational revision. USS in postoperational period allows recognizing not only positive clinical picture, but also identifying postoperational intraperitoneal complications (such as abscesses of peritoneal cavity, complications in commissure)

    The effect of shale mineral powder on the strength of asphalt concrete

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    In the article, work has been done to obtain shale mineral powder based on local raw materials and develop technologies to improve the physical and mechanical performance and durability of asphalt concrete, thereby increasing the physico-mechanical performance and durability of asphalt concrete, the density of fine-grained hot dense asphalt mix with shale mineral powder. The water absorption index of the asphalt concrete mixture decreases, the strength increases, and the transport performance of the road improves

    Results of surgical treatment of lymphangiomas in children

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    Lymphangiomas are mature, benign tumors emanating from the lymphatic vessels. Lymphangiomas can be external (cervical, cervical-axillary- thoracic) and internal (mediastinal, internal organs, retroperitoneal, pelvic). The most common are lymphangiomas of the cervical localization - from 74% to 82%. Due to the genetic relationship of lymphangiomas to blood vessels, in particular, to the venous system, their radical removal presents certain difficulties, where they are close to the main vessels of the neck, axillary region, mediastinum and other localizations. There is no consensus on the question of the stages of excision of lymphangiomas, if no one doubts the rationality of a single-stage surgical intervention. There are practically no works that raise the issue of the cosmetic side of surgical interventions taken to remove lymphangiomas. It is possible to radically cure lymphangioma by surgical removal only in 75% of cases

    Efficiency of an ultrasound sonography in case of appendicular peritonitis among children

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    Sonographic indicators were evaluated: the presence of liquid in peritoneal cavity and its localization; the presence of the peristalsis of intestines; the diameter and the thickness of intestines; accumulation of the liquid and gases in intestines; and movement of the chyme through the intestines. It was found that, 91.2% of sonographic findings were similar, when preoperational indicators of USS were compared with findings of intraoperational revision. USS in postoperational period allows recognizing not only positive clinical picture, but also identifying postoperational intraperitoneal complications (such as abscesses of peritoneal cavity, complications in commissure)

    Acrocephalus orinus: A Case of Mistaken Identity

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    Recent discovery of the Large-billed Reed Warbler (Acrocephalus orinus) in museums and in the wild significantly expanded our knowledge of its morphological traits and genetic variability, and revealed new data on geographical distribution of the breeding grounds, migration routes and wintering locations of this species. It is now certain that A. orinus is breeding in Central Asia; however, the precise area of distribution remains unclear. The difficulty in the further study of this species lies in the small number of known specimens, with only 13 currently available in museums, and in the relative uncertainty of the breeding area and habitat of this species. Following morphological and genetic analyses from Svensson, et al, we describe 14 new A. orinus specimens from collections of Zoological Museums of the former USSR from the territory of Central Asian states. All of these specimens were erroneously labeled as Blyth's Reed Warbler (A. dumetorum), which is thought to be a breeding species in these areas. The 14 new A. orinus specimens were collected during breeding season while most of the 85 A. dumetorum specimens from the same area were collected during the migration period. Our data indicate that the Central Asian territory previously attributed as breeding grounds of A. dumetorum is likely to constitute the breeding territory of A. orinus. This rare case of a re-description of the breeding territory of a lost species emphasizes the importance of maintenance of museum collections around the world. If the present data on the breeding grounds of A. orinus are confirmed with field observations and collections, the literature on the biology of A. dumetorum from the southern part of its range may have to be reconsidered

    СОВРЕМЕННОЕ ПРЕДСТАВЛЕНИЕ О МОЛЕКУЛЯРНО-ГЕНЕТИЧЕСКИХ МАРКЕРАХ РАКА ПРЕДСТАТЕЛЬНОЙ ЖЕЛЕЗЫ

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    Purpose of the study: to present up-to-date data on molecular genetic studies aimed to identify the risks of developing prostate cancer in representatives of various ethnic groups. Material and Methods. Literary sources were searched in databases such as PubMed, Medline, Google Scholar. We had analyzed 60 sources on the risks of developing prostate cancer. The epidemiological data on the prostate cancer incidence and risk factors depending on age characteristics, hormonal status and hereditary predisposition were shown. Results. The pathogenetic features of prostate cancer depending on ethnicity were described. The paper presents data from both European and Asian ethnic groups. In a number of studies, significant genetic differences in single nucleotide polymorphisms associated with the development of prostate cancer were identified. Conclusion. Research in the field of determining the risks of developing prostate cancer becomes more and more relevant due to the emergence of new molecular genetic markers, as well as the influence of various ethnic characteristics. Nevertheless, many questions of modern diagnosis of prostate cancer are still open, therefore, research in this area remains promising. Цель исследования – представить современные данные молекулярно-генетических исследований, посвященных выявлению рисков развития рака предстательной железы у представителей различных этнических групп.Материал и методы. Выполнен поиск литературных источников, доступных в базах данных PubMed, Medline, Google Scholar. Нами было проанализировано 52 источника, посвященных рискам развития рака предстательной железы. Приведены эпидемиологические данные по распространенности изучаемой патологии в мире, а также детально продемонстрированы факторы риска в зависимости от возрастных особенностей, гормонального статуса и наследственной предрасположенности.Результаты. Освещены патогенетические особенности рака предстательной железы в зависимости от этнической принадлежности. В работе представлены данные как европейской, так и азиатской этнических групп. В ряде исследований описаны существенные генетические различия в однонуклеотидных полиморфизмах, ассоциированных с развитием рака предстательной железы.Заключение. Исследования в области определения рисков развития рака предстательной железы с каждым годом становятся все перспективнее благодаря появлению новых молекулярно-генетических маркеров, а также изучению различных этнических особенностей. Тем не менее остаются открытыми многие вопросы современной диагностики рака предстательной железы, поэтому исследования в данной области являются актуальными.

    Minimization of quadratic functionals of linear dynamic control systems trajectories deflections

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    The study deals with problems of optimization of dynamic systems in the class of relay functions; the proof of structural required conditions of optimality in problems of optimization of dynamic systems in the class of relay functions. Criteria of dynamic systems linearization controllability along relay controls, new required conditions of optimality in different problems of optimum control, a criterion of controllability relative to Hamiltonian and extreme controllability in linear-quadratic problems of optimum control are proved. The results received can be used as a basis for development of effective numerical methods of solving problems where modes of accelerating switchings are possibleAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio

    Isolation of a lipase inhibitor from the fungus Rhizopus microsporus

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    Analysis of the State of Development of Innovative Activity in the Textile Industry

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    In today's world, in the context of globalization and integration of the national economy into the world community, it is difficult to overestimate the role of innovation. Today, innovations surround us everywhere, both in the economic and social spheres. In the age of accelerated development of information and communication technologies, large industrial enterprises and small businesses need to respond quickly to changing national and global needs
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