Results 21 to 30 of about 2,161,670 (306)

Edge‐modulated stagnant‐lid convection and volcanic passive margins

open access: yesGeochemistry, Geophysics, Geosystems, 2007
The initial oceanic crust along volcanic passive margins is a factor of ∼3 greater than that of typical oceanic crust (20 versus 6–7 km). Convection driven by the edge of the continental lithosphere may cause mantle material to circulate through the ...
Norman H. Sleep
doaj   +1 more source

Chinese Guideline for Diagnosis and Treatment of Co-morbid Insomnia and Obstructive Sleep Apnea (2024) [PDF]

open access: yesZhongguo quanke yixue
When insomnia and obstructive sleep apnea (OSA) coexist, it is referred to as comorbid insomnia and obstructive sleep apnea (COMISA). The prevalence of COMISA in the general population ranges from 0.6% to 19.3%.
Chinese Academy Society of Sleep Medicine, Chinese Medical Doctor Association, Sleep Medicine Group, China Neurologist Association
doaj   +1 more source

Predictors of changes in cerebral perfusion and oxygenation during obstructive sleep apnea

open access: yesScientific Reports, 2021
Obstructive sleep apnea syndrome (OSAS) is a common sleep disorder. Severe OSAS defined as apnea–hypopnea index (AHI) ≥ 30/h is a risk factor for developing cerebro-cardiovascular diseases.
Zhongxing Zhang   +3 more
doaj   +1 more source

The impact of central and obstructive respiratory events on cerebral oxygenation in adults with sleep disordered breathing

open access: yesJournal of Innovative Optical Health Sciences, 2023
Obstructive sleep apnea (OSA) and central sleep apnea (CSA) are two main types of sleep disordered breathing (SDB). While the changes in cerebral hemodynamics triggered by OSA events have been well studied using near-infrared spectroscopy (NIRS), they ...
Ramin Khatami   +4 more
doaj   +1 more source

Sleep During Pregnancy: The nuMoM2b Pregnancy and Sleep Duration and Continuity Study [PDF]

open access: yes, 2017
Study Objectives: To characterize sleep duration, timing and continuity measures in pregnancy and their association with key demographic variables. Methods: Multisite prospective cohort study. Women enrolled in the nuMoM2b study (nulliparous women
Basner, Robert C.   +19 more
core   +1 more source

Primary care management of chronic insomnia: a qualitative analysis of the attitudes and experiences of Australian general practitioners

open access: yesBMC Family Practice, 2021
Background Chronic insomnia is a highly prevalent disorder, with ten to thirty percent of Australian adults reporting chronic difficulties falling asleep and/or staying asleep such that it causes significant daytime impairment. Current Australian general
Jenny Haycock   +14 more
doaj   +1 more source

Total and Partial Sleep Deprivation in Clomipramine-Treated Endogenous Depressives [PDF]

open access: yes, 1990
Improvement in depression after total sleep deprivation (TSD) is, as a rule, followed by relapse after subsequent ad libitum sleep. This study is addressed to the question of how nocturnal partial sleep following TSD affects this relapse.
Beersma, Domien,   +2 more
core   +7 more sources

Are there sleep-specific phenotypes in patients with chronic fatigue syndrome? A cross-sectional polysomnography analysis [PDF]

open access: yes, 2013
Objectives: Despite sleep disturbances being a central complaint in patients with chronic fatigue syndrome (CFS), evidence of objective sleep abnormalities from over 30 studies is inconsistent.
Deary, Vincent   +3 more
core   +1 more source

Testing an early online intervention for the treatment of disturbed sleep during the COVID-19 pandemic in self-reported good and poor sleepers (Sleep COVID-19): study protocol for a randomised controlled trial

open access: yesTrials, 2021
Background Theoretical models of insomnia suggest that stressful life events, such as the COVID-19 pandemic, can cause acute insomnia (short-term disruptions to sleep).
Olivia L. Sawdon   +4 more
doaj   +1 more source

REM sleep in acutely traumatized individuals and interventions for the secondary prevention of post-traumatic stress disorder [PDF]

open access: yes, 2020
Increasing evidence supports a close link between REM sleep and the consolidation of emotionally toned memories such as traumatic experiences. In order to investigate the role of sleep for the development of symptoms related to traumatic experiences ...
Bublitz, Jan Christoph   +6 more
core   +1 more source

Home - About - Disclaimer - Privacy