Results 91 to 100 of about 6,719,781 (362)

Cosmological meaning of geometric curvatures

open access: yesFilomat, 2020
In this paper, we analyzed the physical meaning of scalar curvatures for a generalized Riemannian space. It is developed the Madsen?s formulae for pressures and energy-densities with respect to the corresponding energy-momentum tensors. After that, the energy-momentum tensors, pressures, energy-densities and state-parameters are analyzed ...
openaire   +3 more sources

Interleukin‐6 as a Key Biomarker in Facioscapulohumeral Dystrophy: Evidence From Longitudinal Analyses

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Facioscapulohumeral muscular dystrophy type 1 (FSHD1) is a progressive neuromuscular disorder with no approved treatments. Identifying reliable biomarkers is critical to monitor disease severity, activity, and progression. Interleukin‐6 (IL‐6) has been proposed as a candidate biomarker, but longitudinal validation is limited ...
Jonathan Pini   +13 more
wiley   +1 more source

Some weighted operator geometric mean inequalities

open access: yesپژوهش‌های ریاضی, 2017
In this paper, using the extended Holder- -McCarthy inequality, several inequalities involving the α-weighted geometric mean ...
Alemeh Sheikhhosseini   +2 more
doaj  

Information Geometric Approach on Most Informative Boolean Function Conjecture

open access: yesEntropy, 2018
Let X n be a memoryless uniform Bernoulli source and Y n be the output of it through a binary symmetric channel. Courtade and Kumar conjectured that the Boolean function f : { 0 , 1 } n → { 0 , 1 } that maximizes the ...
Albert No
doaj   +1 more source

Geometric mean extension for data sets with zeros

open access: yes, 2019
There are numerous examples in different research fields where the use of the geometric mean is more appropriate than the arithmetic mean. However, the geometric mean has a serious limitation in comparison with the arithmetic mean.
de la Cruz, Roberto, Kreft, Jan-Ulrich
core  

Continued fraction digit averages an Maclaurin's inequalities [PDF]

open access: yes, 2014
A classical result of Khinchin says that for almost all real numbers $\alpha$, the geometric mean of the first $n$ digits $a_i(\alpha)$ in the continued fraction expansion of $\alpha$ converges to a number $K = 2.6854520\ldots$ (Khinchin's constant) as ...
Cellarosi, Francesco   +3 more
core   +1 more source

Additive versus multiplicative parameters - applications in economics and finance

open access: yes, 2016
In this paper, we pay our attention to geometric parameters and their applications in economics and finance. We discuss the multiplicative models in which a geometric mean and a geometric standard deviation are more natural than arithmetic ones.
Jasiulewicz, Helena, Kordecki, Wojciech
core   +1 more source

Higher Amyloid and Tau Burden Is Associated With Faster Decline on a Digital Cognitive Test

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective A 2‐min digital clock‐drawing test (DCTclock) captures more granular features of the clock‐drawing process than the pencil‐and‐paper clock‐drawing test, revealing more subtle deficits at the preclinical stage of Alzheimer's disease (AD). A previous cross‐sectional study demonstrated that worse DCTclock performance was associated with
Jessie Fanglu Fu   +16 more
wiley   +1 more source

Network Decomposition and Complexity Measures: An Information Geometrical Approach

open access: yesEntropy, 2014
We consider the graph representation of the stochastic model with n binary variables, and develop an information theoretical framework to measure the degree of statistical association existing between subsystems as well as the ones represented by each ...
Masatoshi Funabashi
doaj   +1 more source

Parabolic methods for the construction of spacelike slices of prescribed mean curvature in cosmological spacetimes [PDF]

open access: yes, 1999
Spacelike hypersurfaces of prescribed mean curvature in cosmological space times are constructed as asymptotic limits of a geometric evolution equation. In particular, an alternative, constructive proof is given for the existence of maximal and constant ...
Ecker, K., Huisken, G.
core  

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