Sökning: "night driving"

Visar resultat 6 - 10 av 17 avhandlingar innehållade orden night driving.

  1. 6. An integrative approach to neurocardiologic mechanisms of heart disease risk in professional drivers : application of neuro-psycophysiologic and work environment models

    Författare :Reza Emdad; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :professional drivers; ischemic heart disease; EEC; ERP; TypeA behavior; Stress; Job Strain; headlight glare; night driving;

    Sammanfattning : Aim: This dissertation aims to apply, develop and integrate neurophysiologic, psychophysiologic, and work environment models, along with behavioral and biomedical risk factors" to provide insight into the neurocardiologic mechanisms of heart disease risk in professional drivers (PD). Methods: Subjects were male PD, age 25-52: 13 with ischemic heart disease(IHD), 12 hypertensives (HTN), 10 borderline hypertensives (BHTN) and 34 normotensives (NTN), and 23 non-PD controls. LÄS MER

  3. 7. Rhonchopathy : long-term clinical results after palatal surgery

    Författare :Michael Lysdahl; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Snoring; sleep apnea; driving; accidents; mortality; uvulopalatopharyngoplasty; uvulopalatoplasty; laser surgery; oximetry.;

    Sammanfattning : Up to one third of Swedish middle-aged men snore habitually, disturbing their surroundings. More than 5% suffer from medical rhonchopathy combining snoring with obstructive breathing and fragmented sleep. LÄS MER

  4. 8. Young Drivers and Their Passengers : Crash Risk and Group Processes

    Författare :Inger Engström; Kjell Granström; Nils Petter Gregersen; Håkan Alm; Linköpings universitet; []
    Nyckelord :Young drivers; passengers; crash risk; group processes; Unga förare; passagerare; olycksrisk; grupprocesser; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : The overall aim was to elucidate the effects of vehicle passengers on young drivers. This generated two specific aims and four papers. The first aim was to investigate the crash risk for young drivers with passengers and to establish whether such accidents involve any special circumstances compared to those that occur without passengers. LÄS MER

  5. 9. Sleepiness at the wheel

    Författare :Anna Anund; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

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

  7. 10. The Ecology of Floral Signals in Penstemon digitalis

    Författare :Rosalie Burdon; Amy L. Parachnowitsch; James Thomson; Uppsala universitet; []
    Nyckelord :Antimicrobial; Bombus impatiens learning; indirect signal; multimodal; nectar; protandry; signal-reward association; Volatile Organic Compounds VOCs ; Biology with specialization in Ecological Botany; Biologi med inriktning mot ekologisk botanik;

    Sammanfattning : In this thesis, I combined field observations and lab experiments to explore the ecological significance of floral signals in a North American wildflower, Penstemon digitalis. More specifically, to determine the potential mechanisms driving selection on floral scent, I studied how scent mediates interactions with pollinators and antagonists by (1) observing spatiotemporal variation in scent emission (2), floral volatile ability to suppress microbes (3) the honest advertisement of nectar, and (4) if scent could aid pollinator learning by reinforcing visual signals. LÄS MER