Results 11 to 20 of about 42,415 (143)

European Sitting Championship: Prevalence and Correlates of Self-Reported Sitting Time in the 28 European Union Member States. [PDF]

open access: yesPLoS ONE, 2016
OBJECTIVE:Sedentary behaviour is increasingly recognized as an important health risk, but comparable data across Europe are scarce. The objective of this study was to explore the prevalence and correlates of self-reported sitting time in adults across ...
Anne Loyen   +4 more
doaj   +1 more source

A characterization of multivariate regular variation

open access: yesThe Annals of Applied Probability, 2002
We establish the equivalence between the multivariate regular variation of a random vector and the univariate regular variation of all linear combinations of the components of such a vector.
Basrak, Bojan   +2 more
openaire   +3 more sources

Genotype-phenotype map characteristics of an in silico heart cell

open access: yesFrontiers in Physiology, 2011
Understanding the causal chain from genotypic to phenotypic variation is a tremendous challenge with huge implications for personalized medicine. Here we argue that linking computational physiology to genetic concepts, methodology and data provides a new
Jon Olav eVik   +8 more
doaj   +1 more source

Multivariate Regular Variation of Preferential Attachment Models

open access: yes, 2023
We use the framework of multivariate regular variation to analyse the extremal behaviour of preferential attachment models. To this end, we follow a directed linear preferential attachment model for a random, heavy-tailed number of steps in time and treat the incoming edge count of all existing nodes as a random vector of random length.
Janßen, Anja, Ziegenbalg, Max
openaire   +2 more sources

Baseline Serum Magnesium Level and Its Variability in Maintenance Hemodialysis Patients: Associations with Mortality

open access: yesKidney & Blood Pressure Research, 2019
Background/Aims: The study aimed at investigating the impact of serum magnesium (Mg) baseline level and its variability on mortality in maintenance hemodialysis (MHD) patients. Methods: Eligible patients receiving regular MHD at Ningbo No.
Lingping Wu   +4 more
doaj   +1 more source

Why the long face? Comparative shape analysis of miniature, pony, and other horse skulls reveals changes in ontogenetic growth [PDF]

open access: yesPeerJ, 2019
Background Much of the shape variation found in animals is based on allometry and heterochrony. Horses represent an excellent model to investigate patterns of size-shape variation among breeds that were intentionally bred for extreme small and large ...
Laura Heck   +2 more
doaj   +2 more sources

Obesity, metabolic syndrome, impaired fasting glucose, and microvascular dysfunction: a principal component analysis approach

open access: yesBMC Cardiovascular Disorders, 2012
Background We aimed to evaluate the multivariate association between functional microvascular variables and clinical-laboratorial-anthropometrical measurements. Methods Data from 189 female subjects (34.0±15.5 years, 30.5±7.1 kg/m2), who were non-smokers,
Panazzolo Diogo G   +5 more
doaj   +1 more source

Multivariate statistical approaches to identify the major factors governing groundwater quality

open access: yesApplied Water Science, 2018
Multivariate statistical techniques, discriminant analysis, cluster and principal component analysis were applied to the dataset on groundwater quality of Longyan basin of Fujian Province (South China), to extract principal factors controlling the source
Tao Chen   +4 more
doaj   +1 more source

Extreme geometric quantiles in a multivariate regular variation framework [PDF]

open access: yesExtremes, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Girard, Stéphane, Stupfler, Gilles
openaire   +4 more sources

kCCA Transformation-Based Radiometric Normalization of Multi-Temporal Satellite Images

open access: yesRemote Sensing, 2018
Radiation normalization is an essential pre-processing step for generating high-quality satellite sequence images. However, most radiometric normalization methods are linear, and they cannot eliminate the regular nonlinear spectral differences.
Yang Bai, Ping Tang, Changmiao Hu
doaj   +1 more source

Home - About - Disclaimer - Privacy