Results 71 to 80 of about 4,114 (172)

Asymptotic independence in more than two dimensions and its implications on risk management

open access: yesCanadian Journal of Statistics, Volume 54, Issue 1, March 2026.
Abstract In extreme value theory, the presence of asymptotic independence signifies that joint extreme events across multiple variables are unlikely. Although well understood in a bivariate context, the concept remains relatively unexplored when addressing the nuances of simultaneous occurrence of extremes in higher dimensions.
Bikramjit Das, Vicky Fasen‐Hartmann
wiley   +1 more source

BIVA studies analysing long-term (≥7 days) changes in body composition induced by exercise and training.

open access: yes, 2018
BIVA studies analysing long-term (≥7 days) changes in body composition induced by exercise and training.
Raúl Fernández-García (5349332)   +5 more
core   +1 more source

A Markov approach to credit rating migration conditional on economic states

open access: yesCanadian Journal of Statistics, Volume 54, Issue 1, March 2026.
Abstract We develop a model for credit rating migration that accounts for the impact of economic state fluctuations on default probabilities. The joint process for the economic state and the rating is modelled as a time‐homogeneous Markov chain. While the rating process itself possesses the Markov property only under restrictive conditions, methods ...
Michael Kalkbrener, Natalie Packham
wiley   +1 more source

European Working Group on Sarcopenia in Older People Algorithm: Step‐by‐Step Relation With Length of Hospitalization

open access: yesJournal of the American Geriatrics Society, Volume 74, Issue 3, Page 760-769, March 2026.
This study globally shows that the EWGSOP2 algorithm is a valid tool even in hospitalized older patients. In fact, every step enhances the predictive validity of the algorithm, suggesting, however, that SARC‐F and muscle strength can still be valuable tools for negative clinical outcomes when body composition data are not available.
Elena Zoico   +7 more
wiley   +1 more source

Bioelectrical impedance vector analysis in obese and overweight children.

open access: yesPLoS ONE, 2019
IntroductionBMI is the most commonly used indicator to evaluate overweight and obesity, but it cannot distinguish changes in body composition. Over recent years, it has been demonstrated that bioelectrical impedance analysis (BIA) is a more accurate ...
Beatriz de-Mateo-Silleras   +5 more
doaj   +1 more source

Commuting by bicycle (vs. by car) is associated with improved aerobic power, microvascular function and diminished CO2 output in the atmosphere

open access: yesExperimental Physiology, Volume 111, Issue 3, Page 834-848, 1 March 2026.
Abstract The study investigated whether bicycle compared with car commuting, over relatively small distances, has positive effects on physiological variables, cardiometabolic fitness and CO2 output in the atmosphere. Bike Commuters (11 M, 15 F; age [median value (interquartile range)] 51.5 (38.3–56.8) years; body mass index [BMI] 22.8 (21.0–24.1) kg m ...
Caterina Ursella   +11 more
wiley   +1 more source

Bioelectrical Impedance Vector Analysis (BIVA) in Exercise and Sports Practice

open access: yes, 2018
[eng] Bioelectrical impedance analysis (BIA) is a non-invasive technique widely used in body composition assessment. Nevertheless, its accuracy is compromised because of its reliance on regression equations and assumptions that are not frequently met.
openaire   +3 more sources

Persistence of fatigue in the absence of pathophysiological mechanisms in some patients more than 2 years after the original SARS‐CoV‐2 infection

open access: yesExperimental Physiology, Volume 111, Issue 3, Page 1413-1428, 1 March 2026.
Abstract Following an acute infection with severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2), a substantial percentage of patients report the persistence of debilitating symptoms, often grouped in a syndrome termed ‘long COVID’. We sought to identify potential pathophysiological mechanisms responsible for the persistence, in some long COVID ...
Giovanni Baldassarre   +10 more
wiley   +1 more source

Risk Factors Associated With Sarcopenia in Patients With Chronic Kidney Disease: A Systematic Review and Meta‐Analysis

open access: yesJournal of Cachexia, Sarcopenia and Muscle, Volume 17, Issue 1, February 2026.
ABSTRACT Background Sarcopenia is an age‐related degenerative disorder characterized by a progressive decline in skeletal muscle mass, strength, and function with high prevalence in chronic kidney disease (CKD). Identifying clinical and epidemiological factors of sarcopenia in patients with CKD is essential to enable early recognition and appropriate ...
Kaili Jin   +6 more
wiley   +1 more source

Factors affecting smoking initiation among the youth in Bangladesh – An empirical analysis

open access: yesTobacco Induced Diseases, 2018
Introduction Tobacco is the single greatest preventable cause of death in the world today. Prevalence of tobacco use among youth has always been a critical issue in tobacco control.
Biva Arani Mallik
doaj   +1 more source

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