Sökning: "load stress"

Visar resultat 1 - 5 av 440 avhandlingar innehållade orden load stress.

  1. 1. Parenting stress : Conceptual and methodological issues

    Författare :Monica Östberg; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; Parenting stress; dimensionality; validity; structural equation modeling; social support; infant temperament; responsiveness; Psykologi; Psychology; Psykologi; Psychology; psykologi;

    Sammanfattning : High parenting stress has been connected with negative consequences for both parent and child. The aim of the present thesis was to examine factors contributing to high stress, and to develop a psychometrically sound, reliable, and valid instrument for measuring parenting stress. LÄS MER

  3. 2. Physical load, psychosocial and individual factors in visual display unit work

    Författare :Jens Wahlström; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; computer work; musculoskeletal symptoms; working; technique; psychosocial factors; physical load; muscular tension; mental; stress;

    Sammanfattning : The overall aim of this thesis was to explore associations between physicalload, psychosocial and individual factors in visual display unit (VDU)work. Furthermore, the aim was to investigate whether perceived musculartension is a predictor of neck pain among VDU operators. LÄS MER

  4. 3. Combining cognitive and physical work tasks: Short-term effects on fatigue, stress, performance and recovery

    Författare :Susanna Mixter; Svend Erik Mathiassen; David Hallman; Petra Lindfors; Paul Jarle Mork; Högskolan i Gävle; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; physical; repetitive; cognitive; mental; load; variation; job rotation; restoration; allostatic load; fysisk; repetitiv; kognitiv; mental; belastning; variation; arbetsrotation; återhämtning; allostatisk belastning; Health-Promoting Work; Hälsofrämjande arbete;

    Sammanfattning : Background: Although combinations of physical and cognitive work tasks occurs in working life (both concurrent and alternating), no one has summarized the research regarding such combinations. Very few studies have investigated the effects of alternating physical and cognitive tasks, which have been suggested as an alternative to classic job rotation. LÄS MER

  5. 4. Heart Rate Variability in Stress-related Fatigue, Adolescent Anxiety and Depression and its Connection to Lifestyle

    Författare :Erik Olsson; Lennart Melin; Ulf Lundberg; Uppsala universitet; []
    Nyckelord :heart rate variability; autonomic nervous system; vagal tone; allostatic load; stress; fatigue; anxiety; depression; continuous performance; attention; cardiovascular risk; lifestyle; physical activity;

    Sammanfattning : Heart rate varies constantly as a consequence of activity in the sympathetic and parasympathetic autonomic nervous systems (SNS and PNS). In short-term recordings, heart rate variability (HRV) is mostly related to the inhibitory activity of the vagal nerves, which are part of the PNS. LÄS MER

  7. 5. Moisture Induced Stress Perpendicular to Grain in Timber Structures

    Författare :Martin Häglund; Avdelningen för Konstruktionsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wood.; timber; perpendicular to grain; load combination factor; tensile stress; mechano-sorption; Moisture induced eigen-stress; varying moisture content;

    Sammanfattning : Timber structures and wooden element are in general affected by moisture and moisture variation in different ways. Their hygroscopic properties result in adsorption of water when wetted and in desorption when dried. LÄS MER