Search for dissertations about: "Martin Olsen"

Showing result 1 - 5 of 6 swedish dissertations containing the words Martin Olsen.

  2. 1. Nanomechanics – Quantum Size Effects, Contacts, and Triboelectricity

    Author : Martin Olsen; Jonas Örtegren; Håkan Olin; Per Gradin; Peter Glans; Rusen Yang; Mittuniversitetet; []
    Keywords : triboelectricity; adatom; ion; charge; mound; quantum size effect; triboelctric nanogenerator; TENG; wind driven; contact; nanomechanics; fri electron model; nanowire cantilever;

    Abstract : Nanomechanics is different from the mechanics that we experience in everyday life. At the nano-scale, typically defined as 1 to 100 nanometers, some phenomena are of crucial importance, while the same phenomena can be completely neglected on a larger scale. READ MORE

  4. 2. The mechanics in two nanosized systems : Size effect and threshold field

    Author : Martin Olsen; Håkan Olin; Ulf Lindefelt; Sven Öberg; Mittuniversitetet; []
    Keywords : ;

    Abstract : This thesis investigates the mechanics in two nanosized system. Paper I investigates a size effect in a cantilever nanowire affecting its resonance frequency. Paper II reveals a threshold field for the formation of a mound by the diffusion of surface atoms on a substrate under a STM-tip. READ MORE

  5. 3. Selective serotonin re-uptake inhibitors in the environment : Effects of citalopram on fish behaviour

    Author : Martin Kellner; Håkan Olsén; Inger Porsch-Hällström; Magnus Breitholtz; Södertörns högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Citalopram; SSRI; stickleback; Baltic; behaviour; fish; feeding; anxiety; boldness; serotonin; development; Storspigg; serotonin; östersjön; SSRI; läkemedel; miljö; citalopram; ätbeteende; beteende; utveckling; Environmental Studies; Miljövetenskapliga studier; Östersjö- och Östeuropaforskning; Baltic and East European studies;

    Abstract : Selective serotonin re-uptake inhibitors (SSRIs) are a class of anxiolytic and anti-depressant drugs. SSRIs act on the evolutionarily ancient serotonergic system which is virtually identical throughout the vertebrate phylum. READ MORE

  6. 4. Quantification of Radiation Induced DNA Damage Response in Normal Skin Exposed in Clinical Settings

    Author : Martin Simonsson; Ingela Turesson; Gunilla Enblad; Dag Rune Olsen; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; DNA damage response; low-dose hypersensitivity; dose response; normal tissue; epidermis; dermis; keratinocyte; fractionated radiotherapy; DNA double strand break; DSB; foci; gamma-H2AX; 53BP1; p21; checkpoint; apoptosis; mitosis; micro-RNA; miR-34a; Oncology; Onkologi; Oncology; Onkologi;

    Abstract : The structure, function and accessibility of epidermal skin provide aunique opportunity to study the DNA damage response (DDR) of a normaltissue. The in vivo response can be examined in detail, at a molecularlevel, and further associated to the structural changes, observed at atissue level. READ MORE

  7. 5. β-Adrenergic Signalling Through mTOR

    Author : Jessica M. Olsen; Tore Bengtsson; Martin Klingenspor; Stockholms universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Glucose uptake; Brown adipose tissue; White adipose tissue; Skeletal muscle; Mechanistic target of rapamycin; Glucose transporter; Physiology; fysiologi; Physiology;

    Abstract : Adrenergic signalling is part of the sympathetic nervous system and is activated upon stimulation by the catecholamines epinephrine and norepinephrine. This regulates heart rate, energy mobilization, digestion and helps to divert blood flow to important organs. READ MORE