Results 61 to 70 of about 37,859 (288)

A sharp inequality for Kendall’s τ and Spearman’s ρ of Extreme-Value Copulas

open access: yesDependence Modeling, 2018
We derive a new (lower) inequality between Kendall’s τ and Spearman’s ρ for two-dimensional Extreme-Value Copulas, show that this inequality is sharp in each point and conclude that the comonotonic and the product copula are the only Extreme-Value ...
Trutschnig Wolfgang, Mroz Thomas
doaj   +1 more source

VE‐Cadherin–Actin Regulation Promotes Mechanotransduction and Monolayer Maturation Involving a Tension‐Sensitive Intermediate State

open access: yesAdvanced Science, EarlyView.
This study investigates how endothelial monolayers balance cohesion and plasticity during mechanical stimulation. In HUVECs, shear stress induces a tension‐sensitive intermediate state in which junctional VE‐cadherin and actomyosin relaxation levels coordinate actin/integrin remodeling. This rapid, reversible state strengthens cell junctions, preserves
Jonas Franz   +11 more
wiley   +1 more source

Revisiting the region determined by Spearman's $ρ$ and Spearman's footrule $ϕ$

open access: yes
34 pages, 8 ...
Tschimpke, Marco   +2 more
openaire   +3 more sources

Unveil Fundamental Graph Properties for Neural Architecture Search

open access: yesAdvanced Science, EarlyView.
This paper proposes NASGraph, a graph‐based framework that represents neural architectures as graphs whose structural properties determine performance. By revealing structure–performance relationships, NASGraph enables efficient neural architecture search with significantly reduced computation.
Zhenhan Huang   +4 more
wiley   +1 more source

Plasma Levels of K18 Fragments Do Not Correlate with Alcoholic Liver Fibrosis

open access: yesGut and Liver, 2019
Background/Aims Noninvasive markers of liver fibrosis in alcoholic liver disease (ALD) are crucial to establish early intervention. Previous studies have suggested that plasma levels of cleaved keratin-18 (K18; M30) fragments can predict the severity of ...
Viola Schlossberger   +6 more
doaj   +1 more source

Spearman's rho for bivariate zero-inflated data

open access: yes
Quantifying the association between two random variables is crucial in applications. Traditional estimation techniques for common association measures, such as Spearman's rank correlation coefficient, $ρ_S$, often fail when data contain ties. This is particularly problematic in zero-inflated contexts and fields like insurance, healthcare, and weather ...
Arends, Jasper, Perrone, Elisa
openaire   +2 more sources

Alternating High‐Fat and Polysaccharide Diets Modulates Gut Phage‐Bacterial Interplay

open access: yesAdvanced Science, EarlyView.
This study reveals how alternating high‐fat and polysaccharide diets reshape the human gut virome and enhance phage‐bacteria interactions. Using large‐scale metagenomic meta‐analysis and a time‐resolved mouse model, the authors show that diets strongly modulate phage abundance, lifestyle, and gene exchange, offering new insights into nutrition‐guided ...
Fengxiang Zhao   +6 more
wiley   +1 more source

Single‐Cell Transcriptomic Atlases of Camels and Cattle Unravel Molecular Evolution of Digestive and Metabolic Systems

open access: yesAdvanced Science, EarlyView.
We generated multi‐tissue single‐cell transcriptomic atlases of camels and cattle, uncovering conserved and lineage‐specific cellular features across digestive and metabolic systems. Cross‐species comparisons revealed the evolutionary origin of the camel glandular sac and identified novel cell populations linked to physiological specialization ...
Tao Shi   +22 more
wiley   +1 more source

Food Aversion, Systemic Inflammation and Intramuscular Adipose Tissue are Mortality Predictors in Advanced Lung Cancer Patients

open access: yesJCSM Communications
Background Cancer cachexia, systemic inflammation and muscle wasting are associated with poor survival in non–small cell lung cancer (NSCLC) patients (pts).
Willian dasNeves   +4 more
doaj   +1 more source

On asymptotic efficiency of multivariate version of Spearman's rho

open access: yes, 2009
A multivariate version of Spearman's rho for testing independence is considered. Its asymptotic efficiency is calculated under a general distribution model specified by the dependence function. The efficiency comparison study that involves other multivariate Spearman-type test statistics is made.
Nazarov, Alexander, Stepanova, Natalia
openaire   +2 more sources

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