Results 171 to 180 of about 258,516 (259)

Screen time and sleep problems in South Indian preschoolers: a community-based cross-sectional study. [PDF]

open access: yesBMJ Open
Govindarajan Venguidesvarane A   +4 more
europepmc   +1 more source

Associations of Plasma Total Tau Level and MMSE Score With Polysomnographic Data in Middle‐Aged Men With Severe Obstructive Sleep Apnea: A Pilot Study

open access: yesChronic Diseases and Translational Medicine, EarlyView.
ABSTRACT Background Obstructive sleep apnea (OSA) is one of the most common sleep disorders. Intermittent nocturnal hypoxia and sleep fragmentation in OSA may be among the main mechanisms triggering cognitive impairment and neurodegeneration. The study was to identify the relationships among plasma total tau (t‐tau) levels, Mini‐Mental State ...
Irina M. Madaeva   +5 more
wiley   +1 more source

An Analytical Design Model of a Vacuum Pressure Swing Adsorption Process for Biogas Upgrading

open access: yesChemie Ingenieur Technik, EarlyView.
A steady‐state model was developed for a vacuum pressure swing adsorption (VPSA) process comprising adsorption, depressurization, and evacuation steps. The resulting analytical plant design model provides the optimal adsorber height required to achieve a target product purity with maximum bed utilization.
Thomas Welter   +3 more
wiley   +1 more source

Dynamic survival risk prediction with time‐varying high‐dimensional images

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Integrating longitudinal data with survival models is a prevalent strategy for dynamic survival risk prediction while accounting for subjects' longitudinally observed variables. However, existing methods primarily focus on scalar longitudinal data and seldom tackle the complexities associated with high‐dimensional longitudinal imaging data ...
Bingfan Liu   +7 more
wiley   +1 more source

Power spectral density and the brain

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Time series from M/EEG (magneto/electroencephalography) and ECoG (electrocorticography) recordings are common sources of information about brain function. The power spectral density (PSD) preserves much of this information, up to second order. In the current decade, a burst of brain diagnostics using the slope of log(PSD) has appeared.
Priscilla E. Greenwood   +2 more
wiley   +1 more source

Homophily‐adjusted social influence estimation

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Homophily and social influence are two key concepts of social network analysis. Distinguishing between these phenomena is difficult, and approaches to disambiguate the two have been primarily limited to longitudinal data analyses. In this study, we provide sufficient conditions for valid estimation of social influence through cross‐sectional ...
Hanh T.D. Pham, Daniel K. Sewell
wiley   +1 more source

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