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Visar resultat 16 - 20 av 34 avhandlingar som matchar ovanstående sökkriterier.

  1. 16. Tired of pain or so tired it hurts? Mechanisms and factors influencing the temporal relationship between insomnia and pain in adolescents

    Författare :Tor Arnison; Jonas Persson; Martien Schrooten; Nicole Tang; Örebro universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Adolescence; Insomnia; Sleep; Pain; Mood; Anxiety; Depression;

    Sammanfattning : Onset of both chronic pain and insomnia is high during adolescence, a phenomenon believed to be caused by a range of biological, psychological and social factors that are unique or particularly salient during adolescence. Negative mood has been established as a salient mechanism explaining the sleep-pain relationship, but an elaborate understanding of if and how mood mediate the relationship in adolescents is lacking. LÄS MER

  3. 17. Negative symptoms, repetitive transcranial magnetic stimulation and heart rate variability in schizophrenia and depression

    Författare :Johan Bengtsson; Robert Bodén; Jonas Persson; Erik Olsson; Caroline Wass; Jimmi Nielsen; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; negative symptoms; psychotic disorders; affective disorders; non-invasive brain stimulation; transdiagnostics; psychometrics; autonomic nervous system; Psychiatry; Psykiatri;

    Sammanfattning : Negative symptoms comprise anhedonia, avolition, and blunted affect. Although first described in schizophrenia, these symptoms share phenomenology with the depressive state. Pharmacological treatment has not been successful in reducing negative symptoms. LÄS MER

  4. 18. Increasing the value of household appliances by adding a heat pump system

    Författare :Peder Bengtsson; Jonas Berghel; Tomas Persson; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Heat pump; Appliances; ASKO; Energy system; Energiteknik; Energy Technology;

    Sammanfattning : Historically, domestic tasks such as preparing food and washing and drying clothes and dishes were done by hand. In a modern home many of these chores are taken care of by machines such as washing machines, dishwashers and tumble dryers. LÄS MER

  5. 19. The Impact of Non-synchronous Generation on Power Systems Dynamics

    Författare :Harold Chamorro; Mehrdad Ghandhari; Jonas Persson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Due to the increasing integration of Renewable Energy Sources (RES), and the installation of High Voltage Direct Current (HVDC) systems, more power is injected to the AC grid based on power electronic converters. This kind of power injection is called non-synchronous generation in this thesis. LÄS MER

  7. 20. Security-centered Coordinated Control in AC/DC Transmission Systems

    Författare :Robert Eriksson; Lennart Söder; Jonas Persson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric power engineering; Elkraftteknik;

    Sammanfattning : .... LÄS MER