350 research outputs found

    The role of language representation of the time model in the process of meaning creation

    Get PDF
    The aim of the article is to demonstrate the language picture of the world, which owes its structural integrity to its relational framework. The archetype “time” is central to the Christian mythology, in fairy tales and other linguocultural artefacts. The thought-language essences representing the category TIME in the modern German language, connect different time modes (past, present, future), allowing to distinguish different worlds. The memory of the ways of the development of the human soul is concentrated in the

    The mechanisms of fiber flax adaptation to high soil acidity (a review)

    Get PDF
    Excessive soil acidity is one of the main factors causing significant losses in crop production. Using fiber flax, the effect of soil acidity on the yield and fiber quality of various samples representing the world gene pool of this crop is shown. The optimum acidity for fiber flax is within a narrow range – pHKCl 5.3–5.6. On strongly acid soils (pHKCl less than 4.5) with threshold values of the toxic aluminum (Al3+) content, 10–11 mg/100 g, a decrease in the flax yield is over 50%. Currently, along with the mechanisms of detoxification of toxic aluminum in acid soils, genetic aspects of aluminum resistance have also been determined. It is shown that one of the most significant components of the common defense response of plants to various stresses is their antioxidant systems. An important role in the antioxidant defense system belongs to glutathione transferases. Using high-through put sequencing and quantitative PCR, a change in the expression of genes and microRNAs in flax plants was revealed in response to the toxic effect of aluminum ions. Using flax genotypes contrasting in acid resistance, an increase in the expression of genes encoding UDP-glycosyltransferases (UGT) and glutathione-S-transferases (GST) was established under aluminum stress. The increase in expression was more pronounced in aluminum-resistant flax cultivars than in sensitive ones. Also, the differences in the change of miR390 and miR393 expression between resistant and sensitive genotypes were revealed under the toxic effects of aluminum ions. Understanding the resistance mechanisms makes it possible to accelerate the development of flax and other crop cultivars adaptive to edaphic stress, which is important for obtaining high and guaranteed yields of agricultural products

    Models of word-formation in loan toponyms in German and French

    Get PDF
    The peculiarities of German and French toponymic systems are the result of historical and extralinguistic development. The system of word forming patterns and its structural components are represented as a result of the interaction of languages. It allows to analyse German and French toponyms as subsystems of onymiс vocabulary. Loan formants, which determined social-cultural nature of toponyms, are considered. Special attention is paid to the process of onymization of appellatives. Structural modeling of German and French toponyms is presente

    Thermal and Mechanical Characteristics of Polymer Composites Based on Epoxy Resin, Aluminium Nanopowders and Boric Acid

    Get PDF
    The epoxy polymers are characterized by low thermal stability and high flammability. Nanoparticles are considered to be effective fillers of polymer composites for improving their thermal and functional properties. In this work, the epoxy composites were prepared using epoxy resin ED-20, polyethylene polyamine as a hardener, aluminum nanopowder and boric acid fine powder as flame-retardant filler. The thermal characteristics of the obtained samples were studied using thermogravimetric analysis and differential scanning calorimetry. The mechanical characteristics of epoxy composites were also studied. It was found that an addition of all fillers enhances the thermal stability and mechanical characteristics of the epoxy composites. The best thermal stability showed the epoxy composite filled with boric acid. The highest flexural properties showed the epoxy composite based on the combination of boric acid and aluminum nanopowder

    Clinical and microbiological aspects of <i>Enterococcus faecalis</i> -associated urinary tract infection

    Get PDF
    Urinary tract infections (UTIs) pose a topical problem in current pediatrics, pediatric nephrology and urology. UTI-related clinical picture in childhood is polymorphic, sometimes being rather subtle and undergoing age-related alterations. Often, typical UTI symptoms in infants and early children occur subclinically. Microbe-related properties colonizing renal tissues dominate among multiple factors involved in developing UTI. In recent years, etiological importance of Enterococcus faecalis in development of such pathology has been increased. Our study was aimed to determine E. faecalis-associated UTI clinical signs in children and unveil their biological characteristics to assess related clinical significance.Materials and methods. A nine-year pediatric UTI etiological pattern was analyzed at the multi-field pediatric clinical hospital. The data of clinical and laboratory examination of 181 UTI children aged 3 days — 17 years as well as microbiological study of 60 E. faecalis strains isolated from patient urine were obtained.Results. Clinical and laboratory characteristics of E. faecalis-associated UTIs, age-related symptom variability were presented. Intoxication syndrome and fever dominated in the clinical picture. A key sign of UTIs was gastrointestinal dysfunction (in neonates and one-year old children) and pain in the lumbar region (in older children). The identified clinical symptoms may be associated with the upper urinary tract damage, concomitant diseases, and the pathogenic properties of E. faecalis. Other symptoms were less common, consistent with the age of the patients, although abdominalgia was equally common for children in all age groups. Data of laboratory examination also depended on patient age. It was noted that leukocytosis and thrombocytosis were more prominent in neonates, whereas leukocyturia and proteinuria — in children above one year of age, although clinical symptoms in this group were less overt. Specific features and clinical significance of E. faecalis-related biological properties, their heterogeneity related to patient age were noted. An inter-connected relationship between pathogenic properties and certain clinical symptoms was revealed.Conclusion. The dominant clinical symptoms (intoxication, hyperthermia), indicative of damaged upper urinary system is related, among other things, to the set of E. faecalis biological properties exerting tissue-damaging and cytolytic effects

    Вплив тривалого стресу на регуляцію серцевого ритму щурів

    Get PDF
    The influence of long-lasting stress on rats’ heart rate variability, which reflects its regulation features, was estimated using electrocardiography data. The indices of correlation rhythmogram and variation pulsogram were analyzed in control and stressed animals. It was discovered that changes of studied indices depended on the duration of stress influence and could correspond to the different stages of stress-reaction of an organism. По данным электрографии оценивали влияние длительного стресса на вариабельность сердечного ритма крыс, которая отражает особенности его регуляции. Проанализированы показатели корреляционной ритмограммы и вариационной пульсограммы животных контрольной и стрессовой групп. Изменения исследуемых показателей зависели от длительности стрессового воздействия и могли соответствовать различным стадиям стресс-реакции организма.За даними електрокардіографії оцінювали вплив тривалого стресу на варіабельність серцевого ритму щурів, яка відображує особливості його регуляції. Проаналізовано показники кореляційної ритмограми та варіаційної пульсограми тварин контрольної та стресової груп. Зміни досліджених показників залежали від тривалості стресового впливу та могли відповідати різним стадіям стрес-реакції організму.
    corecore