Sleep (system call)

About: Sleep (system call) is a research topic. Over the lifetime, 2633 publications have been published within this topic receiving 27806 citations. The topic is also known as: Sleep() & sleep().

Sleep Quality, Mental Health and Learning among High School Students after Reopening Schools during the COVID-19 Pandemic: Results of a Cross-Sectional Online Survey

Abstract: We aimed to assess whether high school students’ sleep quality, mental health and learning changed during the COVID-19 pandemic as adolescents transitioned from learning online back to studying in person. We conducted an anonymous online cross-sectional survey study at three competitive high schools in Vilnius, Lithuania, after they were reopened. Students provided subjective views on their study quality, their health as well as daily life while studying either virtually or in person and completed the Beck depression inventory (BDI), the Generalized anxiety scale-7 (GAD-7) and the Pittsburgh sleep quality index (PSQI). Among 628 (70.4% female) respondents, 268 (42.7%), 342 (54.5%) and 398 (63.4%) are suspected to have depression, an anxiety disorder or poor sleep, respectively. Students reported better study quality (Z = −12.435, p < 0.001) and physical health (Z = −9.176, p < 0.001), but worse sleep quality (Z = −19.489, p < 0.001), shorter sleep duration (Z = −19.509, p < 0.001) and worse self-reported mental health (Z = −2.220, p < 0.05) while learning in person. However, higher scores of in-person study quality and physical health were associated with lower depression and anxiety levels as well as better sleep. Our study suggests that the reopening of schools may exacerbate sleep and mental health-related issues among high school students but also be beneficial for their academic development and levels of physical activity.

Association between outdoor artificial light at night and sleep duration among older adults in China: A cross-sectional study.

Abstract: Light after dusk disrupts the circadian rhythms and shifts the timing of sleep later; but it is unknown whether outdoor artificial light at night (ALAN) affects sleep quality. This study aimed to explore the association between residential outdoor ALAN and sleep duration in a nationally representative sample of Chinese older adults.We examined the cross-sectional associations of outdoor ALAN with self-reported sleep duration in 13,474 older adults participating in the 2017-2018 wave of the Chinese Longitudinal Healthy Longevity Survey (CLHLS). Outdoor ALAN exposure was estimated at the residence level using satellite images. We applied generalized linear mixed models to investigate the association between ALAN exposure and sleep duration. We performed stratified analyses by age, sex, education, and household income levels. Moreover, we used multi-level logistic regression models to investigate the effects of ALAN on the short sleep duration (≤6 h) and the long sleep duration (>8 h), respectively, in reference to sleep for >6-8 h per day.We found a significant association between outdoor ALAN intensity and sleep duration. The highest quartile of ALAN was associated with 17.04 (95% CI: 9.42-24.78) fewer minutes of sleep as compared to the lowest quartile. The reductions in sleep duration per quartile change in ALAN were greater in the young old (≥65-85 years) and in those with higher levels of education, and those with higher household income, respectively. We did not detect a sex difference. In addition, those in the highest quartile of ALAN were more likely to report a 25% (95% CI: 10%-42%) increase in short sleep (<6 h), and a 21% (95% CI: 9%-31%) decrease in long sleep (>8 h).Increasing outdoor nighttime light intensity surrounding residences was associated with shorter sleep duration in older residents in China. This finding implies the importance of urban outdoor artificial light management as a potential means to lower the public health burden of sleep disorders.

Voice frequency sleep assisting device based on brain wave signals

Abstract: The invention discloses a voice frequency sleep assisting device based on brain wave signals. The device utilizes a digital signal processor (DSP) as the core to achieve real-time analysis of brain wave signals, pulses, eye movement, head movement and the like. The fact that a user is in the sleep state is defined according to a signal analyzing comprehensive result, and different voice frequencies in a voice frequency storage are selected according to the sleep degree to help the user to enter the sleep. After the user enters the sleep, the device enters the standby mode, and the voice frequencies are closed automatically. The device is good in sleep assisting effect and has good adaptability on a human body, a measurement sensor and an electrode are installed in a head belt which is bound to the forehead of the user and does not affect the sleep gesture of the user. The system is operated full automatically without any external adjusting command. The voice frequency output adopts a paster headset or a bone transfer module sensor which is arranged in the head belt or a pillow and is not arranged in the auditory meatus, and no long-term discomfort is generated.

Circuit and method for storing data in operational, diagnostic and sleep modes

Abstract: A clocked scan flip-flop 2 is provided in which a latch 14 within the diagnostic data path is reused to store an operational signal value during a sleep mode. The operational signal value is supplied to the latch 14 via a sleep mode path 20 through a transmission gate 22 (or other tristate driver) controlled by a sleep mode control signal SLP. The diagnostic clock signal SCLK, the operational clock signal CLK and the sleep mode control signal SLP together provide the control operations for controlling the various elements within the clocked-scan flip-flop 2 to move into and out of sleep mode.

Adjustment of sleep timeouts in printers

Abstract: Provided are a method, system, and article of manufacture, wherein printer usage corresponding to a plurality of time periods of a day is determined for a plurality of days. Sleep timeout periods corresponding to the plurality of time periods of the day are set based on the determined printer usage.