Zobrazeno 1 - 10
of 487
pro vyhledávání: '"k-index"'
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 40, Iss 3, Pp 101-111 (2023)
We conducted a statistical study of polar mesospheric summer echoes (PMSEs) in relation to magnetic local time (MLT), considering the geomagnetic conditions using the K-index (or K). Additionally, we performed a case study to examine the velocity p
Externí odkaz:
https://doaj.org/article/15be50b3f35548bbbce7e4add1aeac50
Publikováno v:
Neurologijos seminarai, Vol 27, Iss No. 1 (95) (2023)
Multiple sclerosis (MS) is a chronic disease of the central nervous system (CNS) most commonly diagnosed in young adults. In recent decades, new treatments have emerged that have radically changed the prognosis and quality of life of these patients.
Externí odkaz:
https://doaj.org/article/19922a2dd10c4e228d27d6c097b0d6da
Akademický článek
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Akademický článek
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Autor:
Kalim Ullah, Farah Ikram
Publikováno v:
Earth and Space Science, Vol 9, Iss 8, Pp n/a-n/a (2022)
Abstract To delineate the dynamic stability of a moist atmosphere and to measure stability within a statically stable atmosphere, local Richardson number (Ri) and Brunt‐Väisälä (BV) frequency are used in this study. The BV frequency is an import
Externí odkaz:
https://doaj.org/article/a62bf820b94a4d4fa680eb0f2f52ee55
Publikováno v:
SN Applied Sciences, Vol 3, Iss 6, Pp 1-15 (2021)
Abstract The objective of this research is to explore the inherent complexities and multifractal properties of the underlying distributions in the daily Planetary K-index time series collected from NOAA Space Weather Prediction Center. In this articl
Externí odkaz:
https://doaj.org/article/7ce4d062ae7142b8836a5fb64c4e55d3
Publikováno v:
Mathematics, Vol 11, Iss 13, p 2855 (2023)
Identifying a subgroup of patients who may have an enhanced treatment effect in a randomized clinical trial has received increasing attention recently. For time-to-event outcomes, it is a challenge to define the effectiveness of a treatment and to ch
Externí odkaz:
https://doaj.org/article/65bf99f54cc54e3c8fff68fdf992595a
Publikováno v:
Mathematics, Vol 11, Iss 3, p 738 (2023)
In 1994, Dobrynin and Kochetova introduced the concept of degree distance DD(Γ) of a connected graph Γ. Let dΓ(S) be the Steiner k-distance of S⊆V(Γ). The Steiner Wiener k-index or k-center Steiner Wiener indexSWk(Γ) of Γ is defined by SWk(Γ
Externí odkaz:
https://doaj.org/article/1029c9ff0d76451aab4ca5d1a35549a0
Publikováno v:
Earth and Space Science, Vol 8, Iss 10, Pp n/a-n/a (2021)
Abstract As an important indicator of solar activity, the long‐term total solar irradiance (TSI) observations are needed to uncover the impact of solar activity on Earth's climate. In this paper, the periodic variation of TSI and its relationships
Externí odkaz:
https://doaj.org/article/c5781265e4594e0caece101587d7b102
Publikováno v:
Frontiers in Physics, Vol 8 (2020)
We provide a survey of the Kolkata index of social inequality, focusing in particular on income inequality. Based on the observation that inequality functions (such as the Lorenz function), giving the measures of income or wealth against that of the
Externí odkaz:
https://doaj.org/article/90ebb0d81921485ea3439e514de99062