Natalia Stepanova
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View article: Adaptive exact recovery in sparse nonparametric models
Adaptive exact recovery in sparse nonparametric models Open
We observe an unknown function of d variables $$f(\textbf{t})$$ , $$\textbf{t}\in [0,1]^d$$ , in the Gaussian white noise model of intensity $$\varepsilon >0$$ . We assume that the function f is regular and that it i…
View article: Using machine learning methods to optimize business processes in IT projects
Using machine learning methods to optimize business processes in IT projects Open
This article explores the potential of machine learning (ML) methods to optimize busi-ness processes in IT projects, with a focus on improving management efficiency, minimiz-ing time and financial costs, and enhancing decision quality. The…
View article: Adaptive exact recovery in sparse nonparametric models
Adaptive exact recovery in sparse nonparametric models Open
We observe an unknown regression function of $d$ variables $f(\boldsymbol{t})$, $\boldsymbol{t} \in[0,1]^d$, in the Gaussian white noise model of intensity $\varepsilon>0$. We assume that the function $f$ is regular and that it is a sum of…
View article: Exact variable selection in sparse nonparametric models
Exact variable selection in sparse nonparametric models Open
We study the problem of adaptive variable selection in a Gaussian white noise model of intensity $\varepsilon$ under certain sparsity and regularity conditions on an unknown regression function $f$. The $d$-variate regression function $f$ …
View article: Research value relationship of preschool children to the environmental world
Research value relationship of preschool children to the environmental world Open
Introduction. Value relations are an integral component of the personality of older preschool children and characterize the sphere of reality that is most significant for them. It should be noted that the works related to the study of valu…
View article: ANALYSIS OF TRAINING PROGRAMS OF THE PERFORMANCE SWIMMERS WITHIN THE BASIC MACROCYCLE OF THE ANNUAL TRAINING CYCLE
ANALYSIS OF TRAINING PROGRAMS OF THE PERFORMANCE SWIMMERS WITHIN THE BASIC MACROCYCLE OF THE ANNUAL TRAINING CYCLE Open
Throughout this research, it has been pursued the process of studying and creating training programs of the performance swimmers during the basic macrocycle of the annual training cycle, where the emphasis was placed on the development of …
View article: Investigating control and scientific performance of educators in universities
Investigating control and scientific performance of educators in universities Open
Academic practice showed that the control work in an advanced instructive foundation gains an articulated scientific direction, which permits us to discuss a solitary control and insightful action of instructors. The point of this explorat…
View article: Preparation of performance swimmers at sprint distances
Preparation of performance swimmers at sprint distances Open
Determination of effective tools and methods for improving the fastness of the swimmers in modern development.
View article: Re-imagining the Pedagogical Paradigm Within a Technology Mediated Learning Environment
Re-imagining the Pedagogical Paradigm Within a Technology Mediated Learning Environment Open
Traditional didactic pedagogies employed within the culture of the Russian higher education system precluded students’ engagement with problems which were described as generating dissonances in learning cognition. Addressing issues of diss…
View article: Scientific and methodological provisions of resource center administration process on the basis of pre-school educational organizations
Scientific and methodological provisions of resource center administration process on the basis of pre-school educational organizations Open
Научно-методическое обеспечение процесса управления ресурсным центром на
View article: Variable selection with Hamming loss
Variable selection with Hamming loss Open
We derive non-asymptotic bounds for the minimax risk of variable selection under expected Hamming loss in the Gaussian mean model in $\mathbb{R}^d$ for classes of $s$-sparse vectors separated from 0 by a constant $a > 0$. In some cases, we…
View article: Peculiarities of roentgenological picture of pulmonary tuberculosis upon HLA-DRB1 gene polymorphism depending on pro-and-antiinflammatory cytokines concentration
Peculiarities of roentgenological picture of pulmonary tuberculosis upon HLA-DRB1 gene polymorphism depending on pro-and-antiinflammatory cytokines concentration Open
Aim. To study the peculiar features of roentgenological picture of pulmonary tuberculosis in patients with polymorphous HLA-DRB1 allels in the genotype in associations with pro-and-antiinflammatory cytokines concentration.
Materials and m…
View article: A NOTE ON BADLY APPROXIMABLE LINEAR FORMS ON MANIFOLDS
A NOTE ON BADLY APPROXIMABLE LINEAR FORMS ON MANIFOLDS Open
This paper is motivated by Davenport's problem and the subsequent work\nregarding badly approximable points in submanifolds of a Euclidian space. We\nstudy the problem in the area of twisted Diophantine approximation and present\ntwo diffe…
View article: Adaptive variable selection in nonparametric sparse additive models
Adaptive variable selection in nonparametric sparse additive models Open
We consider the problem of recovery of an unknown multivariate signal $f$ observed in a $d$-dimensional Gaussian white noise model of intensity $\varepsilon$. We assume that $f$ belongs to a class of smooth functions ${\cal F}^d\subset L_2…
View article: Intoxication syndrome in patients with pulmonary tuberculosis in relation to the system glutathione transferase gene polymorphism
Intoxication syndrome in patients with pulmonary tuberculosis in relation to the system glutathione transferase gene polymorphism Open
In 178 patients with different clinical forms of pulmonary tuberculosis carried out pharmacogenetic testing to determine gene polymorphism glutathione S-transferase system (GSTM1, GSTT1). Estimated the severity and duration of clinical man…
View article: UNFAVORABLE SIDE EFFECTS TO FIRST LINE ANTI-TUBERCULOSIS DRUGS
UNFAVORABLE SIDE EFFECTS TO FIRST LINE ANTI-TUBERCULOSIS DRUGS Open
The article presents the study of frequency of unfavorable side effects to anti-tuberculosis drugs in new pulmonary tuberculosis patients in Regional Clinical TB Dispensary in Astrakhan in 2012-2013. The study reflects the type and nature …