Search for dissertations about: "Sleep pattern"

Showing result 1 - 5 of 47 swedish dissertations containing the words Sleep pattern.

  2. 1. Indicators and predictors of sleepiness

    Author : Johannes van den Berg; Ulf Landström; Gregory Neely; Anders Knutsson; Palle Ørbæk; Umeå universitet; []
    Keywords : 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;

    Abstract : 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. READ MORE

  4. 2. Jet lag and shiftwork : their effects on sleep & sleepiness

    Author : Arne Lowden; Ulf Landström; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Sleep; alertness; jet lag; activity; EEG; shift work; psykologi; Psychology;

    Abstract : The aim of the studies was to describe the detailed sleep/wake patterns before, during, and after a period of work that forces individuals to deviate from their normal sleep/wake pattern. Possible countermeasures to experienced problems was evaluated in intervention designs. READ MORE

  5. 3. Burnout and sleep

    Author : Mirjam Ekstedt; T Akerstedt; Karolinska Institutet; Karolinska Institutet; Karolinska Institutet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Sleep; burnout; sleepiness; fatigue; polysomnography; arousals; fragmentation; SWA; phenomenology; stress; metabolic; CVD;

    Abstract : The overall aim of this thesis was to describe the physiological characteristics of sleep in persons with burnout and the relation between sleep and a number of physiological stress markers. The aim was also to evaluate the diurnal pattern of subjective sleepiness and fatigue across workday and weekend, and to describe the experiences of time preceding burnout from a life world perspective. READ MORE

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

    Author : Anna Dahlgren; Torbjörn Åkerstedt; Göran Kecklund; Mikael Sallinen; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; work stress; overtime work; cortisol; sleep; sleepiness; fatigue; individual differences; within-subjects design; field study; Psychology; Psykologi;

    Abstract : 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. READ MORE

  7. 5. Sleep in dairy cows

    Author : Emma Ternman; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Little is known about rest and sleep in dairy cows, but it has been shown in other species that the total amount of sleep, duration of sleep bouts and distribution of sleep over 24 hours differ depending on health status, age, pregnancy and lactation. Sleep recordings conducted on cows with surgically implanted electrodes have shown that they sleep four hours per 24-hour period. READ MORE