Results 21 to 30 of about 5,124,705 (288)
Monitoring and Forecasting the Dynamics of the Incidence of COVID-19 in Moscow: 2020–2021
Relevance. The accumulation of information (statistical data and knowledge) about the COVID-19 pandemic leads to the refinement of mathematical models, to the expansion of the area of their use.
A. V. Sokolov, L. A. Sokolova
doaj +1 more source
Sociology of knowledge оn the generations formation mechanism [PDF]
Socialization process involves interaction between two generations – prevalent and growing one. The present article demonstrates, that different generations display two various types of rational behavior in terms of intergenerational relations ...
V. M. Pashinskiy
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Frustrated generations in Russian history, XX–XXI c. [PDF]
The thesis touches upon the issue of first persons of the state authorities influence to the processes of Russian socium generation dynamics forming.
V. M. Pashinsky
doaj +1 more source
Background Many patients who recovered from COVID are still suffering from pulmonary dysfunction that can be persistent even for months after infection. Therefore, treatment to prevent irreversible impairment of lung function is needed. Treamid (bisamide
Evgeny Bazdyrev +7 more
doaj +1 more source
Orbital Reversibility of Planar Vector Fields
In this work we use the normal form theory to establish an algorithm to determine if a planar vector field is orbitally reversible. In previous works only algorithms to determine the reversibility and conjugate reversibility have been given.
Antonio Algaba +2 more
doaj +1 more source
The Non-Uniform k-Center Problem [PDF]
In this paper, we introduce and study the Non-Uniform k-Center problem (NUkC). Given a finite metric space $(X,d)$ and a collection of balls of radii $\{r_1\geq \cdots \ge r_k\}$, the NUkC problem is to find a placement of their centers on the metric ...
Chakrabarty, Deeparnab +2 more
core +2 more sources
Generalized Center Problems with Outliers [PDF]
We study the ℱ-center problem with outliers: Given a metric space ( X , d ), a general down-closed family ℱ of subsets of X , and a parameter m , we need to locate a subset S ∈ ℱ of centers such that the maximum distance ...
Chakrabarty, Deeparnab +1 more
openaire +4 more sources
Linearizability problem of persistent centers
The concepts of persistent and weakly persistent centers were introduced in 2009 and the same concept was applied in the study of some families of differential equations in 2013.
Matej Mencinger +3 more
doaj +1 more source
The $p$-Center Problem in Tree Networks Revisited [PDF]
We present two improved algorithms for weighted discrete $p$-center problem for tree networks with $n$ vertices. One of our proposed algorithms runs in $O(n \log n + p \log^2 n \log(n/p))$ time.
Banik, Aritra +4 more
core +2 more sources

