Zobrazeno 1 - 10
of 142
pro vyhledávání: '"K Kovacheva"'
Autor:
Heiner Gonska, Ralitza K. Kovacheva
Publikováno v:
Journal of Numerical Analysis and Approximation Theory, Vol 53, Iss 1 (2024)
Several questions concerning the second order modulus of smoothness are addressed in this note. The central part is a refined analysis of a construction of certain smooth functions by Zhuk and its application to several problems in approximation theo
Externí odkaz:
https://doaj.org/article/eee0bb09d0064f7fbee707eaa2b6c402
Akademický článek
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Autor:
Svetla O. Blazheva, K Kovacheva, Tzvetan H. Lukanov, Doroteya K. Todorieva-Todorova, Nikolay T. Tzvetkov
Publikováno v:
Journal of Biomedical and Clinical Research. 14:47-52
Summary Myeloproliferative neoplasms (MPN) are clonal hematological conditions characterized by excessive production of one or more cell lines in the bone marrow. The blood cells produced are often hyperactive in their functions, which could lead to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1852d06432277b6ba21694a2d19f2462
https://doi.org/10.2478/jbcr-2021-0005
https://doi.org/10.2478/jbcr-2021-0005
Autor:
Ralitza K. Kovacheva
Publikováno v:
Computational Methods and Function Theory. 20:125-143
Let $$f(z) := \sum f_\nu z^\nu $$ be a power series with positive radius of convergence. In the present paper, we study the phenomenon of overconvergence of sequences of classical Pade approximants $$\{\pi _{n,m_n}\}$$ associated with f, where $$m_n\
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef7c8e95e3a7a336fafffa1ddacc3bb9
https://doi.org/10.1007/s40315-020-00301-4
https://doi.org/10.1007/s40315-020-00301-4
Autor:
Veselin P. Penkov, Peter D. Ivanov, Georgi M. Golemanov, K Kovacheva, Olamide Ajewole, Galia A. Georgieva, Regina Komsa-Penkova
Publikováno v:
Journal of Biomedical and Clinical Research. 12:124-130
Summary The present study aimed to evaluate the impact of factor V Leiden (FVL) polymorphism within the reproductive problems encountered by patients with polycystic ovary syndrome (PCOS). A total of 92 female patients with PCOS and 101 healthy contr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98375efbba755fff5d4c6f02d1ed0c89
https://doi.org/10.2478/jbcr-2019-0018
https://doi.org/10.2478/jbcr-2019-0018
Autor:
Doroteya K. Todorieva-Todorova, Galya Ts. Stavreva, Stefan V. Trifonov, Tihomir R. Rashev, Nikolay T. Tzvetkov, K Kovacheva, Alexander A. Todorov, P Ivanov
Publikováno v:
Journal of Biomedical and Clinical Research. 12:19-26
Summary Myeloproliferative neoplasms (MPN) are haematological diseases, characterized by clonal hematopoiesis. Hemostasis abnormalities are among the most critical and frequent complications, affecting the quality of life and a possible reason for de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4acd76d1d759d4956ab2cd0b32955629
https://doi.org/10.2478/jbcr-2019-0003
https://doi.org/10.2478/jbcr-2019-0003
Publikováno v:
Abstract and Applied Analysis, Vol 2012 (2012)
The distribution of zeros and poles of best rational approximants is well understood for the functions 𝑓(𝑥)=|𝑥|𝛼, 𝛼>0. If 𝑓∈𝐶[−1,1] is not holomorphic on [−1,1], the distribution of the zeros of best rational approximants i
Externí odkaz:
https://doaj.org/article/fb47f3ca48f3427a8110ee47233537e7
Autor:
Rumen Kotsev, Zornitsa Kamburova, K Kovacheva, Emiliana Konova, M Simeonova, Violeta S. Rilcheva
Publikováno v:
Journal of IMAB, Vol 24, Iss 4, Pp 2217-2222 (2018)
Male infertility is a complex disease, and genetic abnormalities are among the main causal factors for the disorder. Aim: In order to evaluate the proportion of the most common genetic factors in etiology of male infertility, examination for chromoso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a51bbe9ebdeae51f0b48930d41cff9b8
https://www.journal-imab-bg.org/issues-2018/issue4/JofIMAB-2018-24-4p2217-2222.pdf
https://www.journal-imab-bg.org/issues-2018/issue4/JofIMAB-2018-24-4p2217-2222.pdf
Autor:
Zdravka V. Radionova, G Golemanov, K Kovacheva, Alim V. Izmajlov, Veselin P. Penkov, Galia B. Georgieva-Alexandrova, Regina Komsa-Penkova
Publikováno v:
Journal of Biomedical and Clinical Research. 11:7-15
Summary Fetuin-A is a secretory liver glycoprotein with multiple physiological functions such as regulation of insulin resistance, tissue calcification, bone metabolism, cellular proteolytic activity, and self-proliferative signaling. Fetuin-A is a u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f5bbad445c999ad0b230d20cd3c9f0b
https://doi.org/10.2478/jbcr-2018-0002
https://doi.org/10.2478/jbcr-2018-0002
Akademický článek
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