356 research outputs found

    The dynamic input-output LSD-model with reduction of idle capacity and modified decision function

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    Innerhalb der Schriftenreihe „DIW Discussion Papers“ wurde die Nr. 39 doppelt vergeben, siehe auch http://hdl.handle.net/10419/175755

    Binding polynomial in molecular self-assembly

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    In the present work the concept of a binding polynomial is revisited for the most widely used case of self-assembly of identical molecular units and results in the re-construction of a link to the grand partition function of such a system. It is found that if the self-assembly process is not pronounced (i.e., the product of the equilibrium constant and the monomer concentration is close to zero), the binding polynomial has the meaning of a molecular partition function that is given by the summation over energy levels of any molecule in the system. In other cases the concept of a binding polynomial may be misleadin

    Characteristics of Interpersonal Relationships Between Girls Suffering From Love Addiction and Their Fathers

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    Introduction. The paper (a) examines the characteristics of interpersonal relationships between 16–19-year-old girls suffering from love addiction and their fathers and (b) provides an overview of previous studies on the issue. In the latter, the father’s role is recognized to be among its major contributing factors. Empirical data were collected during psychological counseling of young female love addicts. The present study focuses on the nature of interpersonal relationships between daughters suffering from love addiction and their fathers and discusses preventive measures against such dependency in new generations of Russian females. Methods. These were (a) the Love Addiction Test by A. Yu. Egorova; (b) the Interpersonal Dependency Inventory by R. Hirschfeld; (c) the Teenagers About Parents technique by L. I. Wasserman, I. A. Gor'kova, and E. E. Romitsyna; (d) the Family Sociograms by E. G. Eidemiller and O. V. Cheremisin; (e) the technique for assessing father-daughter relationships; (f) the My Relations with Men in the Eyes of Others self-assessment technique. Statistical procedures for data processing included Spearman’s correlation and Mann–Whitney U test. Results. The study presents the results of comparative analysis of father-daughter relationships in two study groups – young female love addicts and those having no signs of pathological love. The findings suggest that with age interpersonal dependency decreases in girls not suffering from love addiction and increases in young female love addicts

    The Effect of Digital Economy and Artificial Intelligence on The Participants of The School Educational Process

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    The article examines the nature of the effect of the digital economy and artificial intelligence on the participants of the school educational process. The study deploys a Likert scale questionnaire, focused interview, and IBM SPSS Statistics 22 as the main instruments. The authors determine the status of a teacher in the AI-teacher system and identify the nature of AI’s influence on the students and communication within the teacher-student-teacher system. Support is provided for the hypothesis suggesting that the effect of the digital economy and AI on the participants of the school educational process (teachers and students) is complex and controversial and causes the differences in the teachers’ positions depending on their age, working experience, and the subject of specialization. The primary advantage of the article is the identification of stable relationships in the teacher-student-teacher system developing with the help of AI. The study indicates the teacher’s advantage over AI in teaching technique and social influence, as well as the negative effect of AI on students’ health. For the first time, the authors examine the nature of role changes in the AI-teacher system in the context of a global pandemic. The danger of AI replacing teachers with the help of teachers themselves is identified. The acquired results may be used by theorists and practitioners for further development of the foundations of the system of education and human interaction with AI in the digital economy

    The Model of Birch-Spruce Plantations Formation in the Conditions of the Russian Plain Southern Taiga

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    The results of 30 years or research on the formation and growth of birch forests from the subcanopy spruce population in the conditions of the Russian Plain southern taiga are presented. The studies have been carried out on 19 permanent sample plots (PSPs). They were laid in regionally representative sorrel-blueberry birch forests aged 15–115 years with high density and productivity. The birch plantations on the PSPs belong to the same natural age series. The majority of spruce trees appeared under the canopy of birch forests up to 40 years old. As the birch trees aged, the age structure of spruce trees changed from even-aged to conditionally even-aged. Based on the study of the dynamics of the number of trees, the vertical structure of stands, the growing stock and the total stem wood stock, the age stages of development of the spruce population in the birch forests up to 120 years old have been determined. They are regeneration, young growth, polewood and maturation. The end of the maturation stage occurs at the birch tree age of 120 years. At the same time, the average spruce tree age in the first and second layers is 90 years. The duration of the stages varies from 10 years (the young growth stage) to 40 years (the regeneration and maturation stages). To determine the time of onset and end of other age stages of the subcanopy spruce population, the studies in birch forests older than 120 years are needed. The work performed has made it possible to propose a model of the joint formation of birch forests and the subcanopy spruce population, in which the main taxation characteristics are given for all elements of the stand: age, number of trees, the sum of the cross-section of the stems, the stock of the growing and dead wood, as well as total productivity. According to the model, by the age of a birch of 120 years, the total productivity of modal plantations will be about 950 m3/ha and the growing stock of the stand will be about 490 m3/ha. The share of spruce wood will be 28 % or about 150 m3/ha. After the birch forest decay, a low-density spruce forest of the 3rd quality class can form in its place

    Patriotic education of older pre-school students

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    The article is devoted to the problem of preschool children’s patriotic education. The authors reviewed the defi nitions of “patriotism”, “patriotic education”, and “preschool children’s patriotic education”. The paper presents research results of preschool children’s patriotic education levels

    Social system of transition society theoretical scheme: economy, culture and ecology interrelations

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    Changes in transcription factor levels, epigenetic status, splicing kinetics and mRNA degradation can each contribute to changes in the mRNA dynamics of a gene. We present a novel method to identify which of these processes is changed in cells in response to external signals or as a result of a diseased state. The method employs a mathematical model, for which the kinetics of gene regulation, splicing, elongation and mRNA degradation were estimated from experimental data of transcriptional dynamics. The time-dependent dynamics of several species of adipose differentiation-related protein (ADRP) mRNA were measured in response to ligand activation of the transcription factor peroxisome proliferator-activated receptor δ (PPARδ). We validated the method by monitoring the mRNA dynamics upon gene activation in the presence of a splicing inhibitor. Our mathematical model correctly identifies splicing as the inhibitor target, despite the noise in the data

    Macro- and megafauna on the slopes of the Saya de Malha Bank of the Mascarene Plateau

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    A first characterization of the distribution and composition of benthic and demersal macro- and megafauna was derived based on video records sampled along five pre-determined transects up the slope on the western, northern and eastern sides of the Saya de Malha Bank on the Mascarene Plateau, starting at a maximum depth of 1000 m. Abundance was highest in the upper parts of eastern slope locations, primarily reflecting a relatively higher abundance of black corals (Antipatharia) than in other locations. A consistent feature of several transects, but most prominent in eastern and northern slopes, was the occurrence of patchy coral and sponge aggregations along the margin where the substrate was mostly hard. In some cases, these aggregations might be considered ‘gardens’ but reefs were not observed. Higher-level taxonomical composition of the fauna is presented. Demersal fish were widespread but not abundant, and within the depth range studied, there was a transition from a marginal shallow fish assemblage to a deepwater assemblage. Fishes were in most cases only assigned to family level, and 49 families were recorded. To thoroughly assess the biodiversity and abundance of fauna of the slopes of Saya de Malha Bank, further studies conducting more detailed video transects and sampling of specimens are warranted
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