457 research outputs found

    Analysis of the Basic Methods of Tribo Modification

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    The article is devoted to the analysis of tribo modification main methods and describing their advantages and disadvantages

    Comparison of machine learning methods for analysis of ulcerative colitis proteomic data

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    Ulcerative colitis is a chronic inflammatory disease of the gastrointestinal system, affecting adults and children. Its cause is unknown, and the knowledge of reliable biomarkers is limited, especially for children. That makes the search for new biomarkers and pushing forth the analysis of the available data particularly challenging. We investigate proteomic data from children patients as a promising source, and tackle the problem implementing the recently developed parenclitic network approach to machine learning algorithms that solve classification task for proteomic data from healthy and diseased. We expect our approach to be applicable to other gastrointestinal diseases

    Coherent population trapping in ruby crystal at room temperature

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    Observation of coherent population trapping (CPT) at ground-state Zeeman sublevels of Cr3+Cr^{3+}-ion in ruby is reported. The experiments are performed at room temperature by using both nanosecond optical pulses and nanosecond trains of ultrashort pulses. In both cases sharp drops in the resonantly induced fluorescence are detected as the external magnetic field is varied. Theoretical analysis of CPT in a transient regime due to pulsed action of optical pulses is presented.Comment: 4 pages, 4 figures, submitted to PR

    Intellectual capital as a basis for the region economic development

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    © Medwell Journals, 2017. In the current economic conditions rapidly developing economy based on knowledge. Intellectual assets of the company are one of the main factors affecting the valuation of companies. The growth of investment attractiveness of the business is directly dependent on changes in the structure of intangible assets. Therefore, the procedure assessment of intellectual capital requires new approaches and needs for scientific advice, based on a study of stable trends and patterns of development of this type of capital. The study defines intellectual capital are the main methods of assessment. Conducted calculations integral valuation of the value of intellectual capital (q-Tobin) for largest companies in the Samara region which in turn determine the level of economic development of the region
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