Sökning: "sleepiness"

Visar resultat 1 - 5 av 58 avhandlingar innehållade ordet sleepiness.

  1. 1. Indicators and predictors of sleepiness

    Författare :Johannes van den Berg; Ulf Landström; Gregory Neely; Anders Knutsson; Palle Ørbæk; Umeå universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Public health; Sleep Scale KSS ; Category-Ratio Scale CR-10 ; sleepiness; sleep; driving; indicator; sleep debt; heart rate variability; electroencephalography EEG ; head movements; performance; truck drivers; sleep habits; predictor; Folkhälsomedicin; Public health medicine research areas; Folkhälsomedicinska forskningsområden;

    Sammanfattning : Sleep is a basic need as important as physical fitness and good nutrition. Without enough sleep, we will create a sleep debt and experience sleepiness. Sleepiness can be defined as the inability to stay awake, a condition that has become a health problem in our 24-hour-7-day-a-week society. LÄS MER

  2. 2. Work stress and overtime work : effects on cortisol, sleep, sleepiness and health

    Författare :Anna Dahlgren; Psykologiska institutionen Samhällsvetenskapliga fakulteten Stockholms universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; work stress; overtime work; cortisol; sleep; sleepiness; fatigue; individual differences; within-subjects design; field study;

    Sammanfattning : In Sweden the National Bureau of Statistics has reported an increase in stress-related disorders and sleep problems since the mid-1990’s. They also report that the number of hours of overtime worked has increased. LÄS MER

  3. 3. Detecting Driver Sleepiness

    Författare :David Sandberg; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Driver sleepiness has been identified as one of the most prevalent factors in road crashes. Methods for online detection of driver sleepiness may help to prevent such sleepiness-related crashes.The main aims of this thesis have been to improve driver sleepiness detection and to further the understanding of how sleepiness impairs driving behavior. LÄS MER

  4. 4. Work stress and overtime work - effects on cortisol, sleep, sleepiness and health

    Författare :Anna Dahlgren; Torbjörn Åkerstedt; Göran Kecklund; Mikael Sallinen; Stockholms universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; work stress; overtime work; cortisol; sleep; sleepiness; fatigue; individual differences; within-subjects design; field study; Psychology; Psykologi;

    Sammanfattning : In Sweden the National Bureau of Statistics has reported an increase in stress-related disorders and sleep problems since the mid-1990’s. They also report that the number of hours of overtime worked has increased. LÄS MER

  5. 5. Sleepiness at the wheel

    Författare :Anna Anund; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP;

    Sammanfattning : Prevention of road crashes is a major priority in most countries. The present thesis focuses on driver sleepiness and road crashes. LÄS MER