A systematic review of features and content quality of Arabic mental mHealth apps.

Introduction: Anxiety and depression are major causes of disability in Arab countries, yet resources for mental health services are insufficient. Mobile devices may improve mental health care delivery (mental m-Health), but the Arab region's mental m-Health app landscape remains under-documented. This study aims to systematically assess the features, quality, and digital safety of mental m-Health apps available in the Arab marketplace.

Prognostic value of hypoxaemic burden from overnight oximetry in heart failure with preserved ejection fraction.

Aims: Nocturnal hypoxaemic burden, quantified as time spent with oxygen saturation below 90% (T90), is an established independent predictor of mortality in heart failure (HF) with reduced ejection fraction. The prognostic value of T90 in HF with preserved ejection fraction (HFpEF) is unknown. This study aims to determine the association of T90 with adverse outcomes in HFpEF.

Power-law properties of nocturnal arrhythmia avalanches: A novel marker for incident cardiovascular events.

Background: Bursting nonsustained cardiac arrhythmia events are a common observation during sleep.

Objectives: The purpose of this study was to investigate the hypothesis that nocturnal arrhythmia episode durations could follow a power law, whose exponent could predict long-term clinical outcomes.

Methods: We defined "nocturnal arrhythmia avalanche" (NAA) as any instance of a drop in electrocardiographic (ECG) template-matched R-R intervals ≥30% of R-R baseline, followed by a return to 90% of baseline.

Enhancing poststroke hand movement recovery: Efficacy of RehabSwift, a personalized brain-computer interface system.

This study explores the efficacy of our novel and personalized brain-computer interface (BCI) therapy, in enhancing hand movement recovery among stroke survivors. Stroke often results in impaired motor function, posing significant challenges in daily activities and leading to considerable societal and economic burdens. Traditional physical and occupational therapies have shown limitations in facilitating satisfactory recovery for many patients.

para-Aminoazobenzenes-Bipolar Redox-Active Molecules.

Azobenzenes (ABs) are versatile compounds featured in numerous applications for energy storage systems, such as solar thermal storages or phase change materials. Additionally, the reversible one-electron reduction of these diazenes to the nitrogen-based radical anion has been used in battery applications. Although the oxidation of ABs is normally irreversible, 4,4'-diamino substitution allows a reversible 2e oxidation, which is attributed to the formation of a stable bis-quinoidal structure.