Design of non-linear filter in the problem of structural identification of biomedical signals with locally concentrated properties

In this paper we propose a generalized method of structural identification of biomedical signals with locally concentrated properties using a digital non-linear filter. The experimental verification of the detecting function was performed by using different ways to describe the model of the desired class of structural elements

Development of method of matched morphological filtering of biomedical signals and images

Formalized approach to the analysis of biomedical signals and images with locally concentrated features is developed on the basis of matched morphological filtering taking into account the useful signal models that allowed generalizing the existing methods of digital processing and analysis of biomedical signals and images with locally concentrated features. The proposed matched morphological filter has been adapted to solve such problems as localization of the searched structural elements on biomedical signals with locally concentrated features, estimation of the irregular background aimed at the visualization quality improving of biological objects on X-ray biomedical images, pathologic structures selection on mammogram. The efficiency of the proposed methods of matched morphological filtration of biomedical signals and images with locally concentrated features is proved by experiments

36 Months Survivability And Its Predictors In Patients With Chronic Heart Failure And Decreased Fraction Of Left Ventricular Ejection Depending On Sex

Aim of the work: to compare survivability parameters during 36 months and their predictors among men and women with chronic heart failure and decreased fraction of left ventricular ejection.Materials and methods: the research included 356 patients with CHF (NYHA ІІ –ІV) with decreased LVEF<40 %, 18–75 years old. Using Kaplan-Meier method, there was analyzed the survivability in men and women during 36 months, then there were analyzed independent factors that influenced survivability terms depending on sex using the multiple logistic regression.Results. Our analysis of the survivability of patients with CHF with decreased LVEF demonstrated that the cumulative survival after 3 years of observation was 49 and 51 % for men and women, respectively. The curves of 36 months survivability didn\u27t reliably differ. At the analysis of factors, associated with the bad prognosis, there were observed differences between groups of men and women with CHF. Thus, in men the predictors of 36 month survival were: the thickness of the right ventricle wall, size of the right atrium, end-diastolic volume and end-systolic volume of LV, indices of EDV and ESV of LV, urinary acid level, value of LVEF. In women the predictors of survivability during 3 years were the following parameters: BMI, DM type 2 in an anamnesis, end-diastolic size of LV, end-systolic size of LV, blood glucose level, LVEF.Conclusion. The survivability of men and women with CHF with decreased LVEF during 36 months didn\u27t reliably differ and was 49 and 51 % respectively. But predictors of the lethal outcome in men and women essentially differed during 36 months, and their number is essentially higher in men

Building on Redundancy: Factoid Question Answering, Robust Retrieval and the "Other"

We have explored how redundancy based techniques can be used in improving factoid question answering, definitional questions (“other”), and robust retrieval. For the factoids, we explored the meta approach: we submit the questions to the several open domain question answering systems available on the Web and applied our redundancy-based triangulation algorithm to analyze their outputs in order to identify the most promising answers. Our results support the added value of the meta approach: the performance of the combined system surpassed the underlying performances of its components. To answer definitional (“other”) questions, we were looking for the sentences containing re-occurring pairs of noun entities containing the elements of the target. For robust retrieval, we applied our redundancy based Internet mining technique to identify the concepts (single word terms or phrases) that were highly related to the topic (query) and expanded the queries with them. All our results are above the mean performance in the categories in which we have participated, with one of our robust runs being the best in its category among all 24 participants. Overall, our findings support the hypothesis that using as much as possible textual data, specifically such as mined from the World Wide Web, is extremely promising.published_or_final_versio

MOTIVATIONAL MECHANISMS OF ROSACEA TIDES: Part I

The subject of the study – rosacea tides. The aim of the study was to find out the triggering role of sexual motivations in the development of rosacea tides. These data indicate the role of sexual motivation as a vital need and in case of failure of a number of necessary mechanisms for its implementation there are disorders in the leading centers of regulation of homeostasis, the earliest - in the hemodynamic center, which becomes one of the triggers of labile vascular response. in the centers of the brain and in the microcirculatory tract of the skin.Keywords: rosacea tides, sexual motivation, vascular reactions

Effect of reflection and refraction on NEXAFS spectra measured in TEY mode

The evolution of near-edge X-ray absorption fine structure in the vicinity of the K-absorption edge of oxygen for HfO2 over a wide range of incidence angles is analyzed by simultaneous implementation of the total-electron-yield (TEY) method and X-ray reflection spectroscopy. It is established that the effect of refraction on the TEY spectrum is greater than that of reflection and extends into the angular region up to angles 2θc. Within angles that are less than the critical angle, both the reflection and refraction strongly distort the shape of the TEY spectrum. Limitations of the technique for the calculation of optical constants from the reflection spectra using the Kramers–Kronig relation in the limited energy region in the vicinity of thresholds are discussed in detail.</jats:p

Psychological traits of author’s style of writing: ways to find new meanings

The study is based on the corpus of texts of Russian classical prose of the XIX century. It is shown, how by means of the comparative statistical analysis of creativity of different authors it is possible to reveal the specificity of individual style. By the example of the specific cases of use of the word "лицо" (in English, "a face") in Anton P. Chekhov’s work are presented features of psychological narration. The conclusions about the interdisciplinary perspectives of the corpus methodology were made.This study was funded by the Russian Foundation for Basic Research Grant № 19‑12‑0104

On the Best Approximation of the Infinitesimal Generator of a Contraction Semigroup in A Hilbert Space

Let A be the infinitesimal generator of a strongly continuous contraction semigroup in a Hilbert space H. We give an upper estimate for the best approximation of the operator A by bounded linear operators with a prescribed norm in the space H on the class Q2={x∈D(A2):∥A2x∥≤1}, where D(A2) denotes the domain of A2.This work was supported by the Russian Foundation for Basic Research (project no. 15-01-02705), the Program for State Support of Leading Scientific Schools of the Russian Federation (project no.NSh-9356.2016.1), and by the Russian Academic Excellence Project (agreement no. 02.A03.21.0006 of August 27, 2013, between the Ministry of Education and Science of the Russian Federation and the Ural Federal University)