Sökning: "stress intensity"

Visar resultat 1 - 5 av 190 avhandlingar innehållade orden stress intensity.

  1. 1. Energy Metabolic Stress Syndrome : Impact of Physical Activity of Different Intensity and Duration

    Författare :Stefan Branth; Leif Hambraeus; Gunnar Ronquist; Mats Stridsberg; Lennart Kaijser; Uppsala universitet; []
    Nyckelord :Medicine; energy; ATP; metabolism; nutrition; body-composition; physical-activity; stress; insulin-resistance; ion-pumps; intracellular swelling and -shrinkage; taurine; reactive oxygen species; Medicin;

    Sammanfattning : All living cell functions require an ongoing supply of energy derived from carbohydrates, lipids and proteins with their own pathways of breakdown. All of them end up in the oxidation of reduced coenzymes, yielding chemically-bound energy in the form of adenosine triphosphate (ATP). LÄS MER

  3. 2. Subjective memory complaints : Relations to objective memory function, gender, personality, affective status and stress

    Författare :Susanna Vestberg; Institutionen för psykologi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; personality; memory complaints; memory clinic; mild cognitive impairment; depression; gender; anxiety; stress; neuropsychological tests; cortisol;

    Sammanfattning : The overall aim of this thesis was to enhance the understanding of patients with subjective memory complaints. The thesis is based on three empirical studies examining middle-aged and young old (< 70 years) non-demented patients assessed at a memory clinic. LÄS MER

  4. 3. Light, stress and herbivory : from photoprotection to trophic interactions using Arabidopsis thaliana as a model organism

    Författare :Martin Frenkel; Jon Moen; Stefan Jansson; Don Cipollini; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis thaliana; photoprotection; herbivory; light-stress; jasmonate; fitness; FDE; dual-choice; Biology; Biologi;

    Sammanfattning : Photosynthesis is the most important process for nearly all life on earth. Photosynthetic organisms capture and transfer light energy from the sun into chemical energy which in turn provides a resource base for heterotrophic organisms. Natural light regimes are irregular and vary over magnitudes. LÄS MER

  5. 4. Analysis of thermal shock in brittle materials

    Författare :Marianne Collin; KTH; []
    Nyckelord :thermal shock; thermal stress; stress intensity; vickers indentation; alumina; silicon varbide whisker reinforced alumina;

    Sammanfattning : This thesis concerns thermal shock damage of ceramicmaterials. More specifically the work is focused on theoreticaland practical aspects of a new technique for determining thethermal shock resistance of brittle materials. LÄS MER

  7. 5. Residual Stress in Additive Manufacturing : Control using orientation and scan strategies

    Författare :Prabhat Pant; Ru Peng; Johan Moverare; Kjell Simonsson; Thomas Niendorf; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Additive manufacturing; Residual stress; Neutron diffraction; FEM; Scan strategies; Build orientations;

    Sammanfattning : Components with complex features that are designed with their function as a core aspect often are not viable to be manufactured with traditional methods. This has been a bottleneck in the past, leading to heavier parts with various sub-assemblies and a significant waste of material. LÄS MER