Sökning: "lewén"

Visar resultat 1 - 5 av 14 avhandlingar innehållade ordet lewén.

  1. 1. Cellular Reactions and Behavioral Changes in Focal and Diffuse Traumatic Brain Injury : A Study in the Rat and Mouse

    Författare :Sara Ekmark Lewén; Lars Hillered; Niklas Marklund; Anders Lewén; Mårten Risling; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Traumatic brain injury; Astrocytes; Inflammatory response; Multivariate concentric square field test; Morris water maze; Exploratory behavior; Risk taking; Functional outcome.; Neurosurgery; Neurokirurgi;

    Sammanfattning : Traumatic brain injury (TBI) is a severe condition and a major cause of death and disability. There is no pharmacological treatment available in clinical practice today and knowledge of brain injury mechanisms is of importance for development of neuroprotective drugs. LÄS MER

  3. 2. Mechanisms of traumatic brain injury in the rat : Morphological consequences and neurotrophic responses

    Författare :Anders Lewén; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurosciences; Cortical contusion injury; TBI; neurons; axons; dendrites; APP; MAP2; BMPR-II; ActR-I; trkB; c-fos; BDNF; PACAP; TUNEL; TGFs; serine threonine; bone morphogenetic protein; neuropeptides; reactive oxygen species; ROS; apoptosis; Neurovetenskap; Neurology; Neurologi; Neurosurgery; neurokirurgi;

    Sammanfattning : Traumatic brain injury is a major cause of death and disability in the Western world. especially in young people. Understanding the pathophysiology of traumatic brain injury is the basis for further development of better therapeutic strategies for such patients. LÄS MER

  4. 3. Det var en lyckad semester! : Semesterfirande svenskars preferenser år 1938-1959

    Författare :Aurora Lewén; Mats Morell; Fredrik Sandgren; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; vacation; holiday; preferences; ekonomic history of Sweden; 1900s; consumption; consumer attitudes; tourism history; semester; preferenser; ekonomisk historia; Sverige; 1900-talet; konsumtion; konsumenter – attityder; turismhistoria; ekonomisk historia; Economic History;

    Sammanfattning : This licentiate thesis analyzes preferences among Swedish vacationers during the period of 1938-1959. The aim of the thesis is to closely examine these preferences in order to contribute to a more fully developed understanding of holiday-related consumption during the period. LÄS MER

  5. 4. Resfeber : Berättelser från semesterns barndom 1938−1959

    Författare :Aurora Lewén; Mats Morell; Ann-Catrin Östman; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; vacation history; vacation memories; holiday consumption; history of travel and tourism; history of the holiday; views on nature; views on social relations; views on family; views on relaxation and rest; motives for legislation; advertising vacation; semesterhistoria; semesterminnen; semesterfrågelista; semesterkonsumtion; turismhistoria; resehistoria; semesterresa; naturuppfattning; syn på sociala relationer; syn på familjen; syn på vila; motiv till semesterlagstiftning; semesterreklam; ekonomisk historia; Economic History;

    Sammanfattning : The dissertation provides an in-depth analysis of Swedes’ perceptions about vacations during the period of 1938 to 1959. The aim is to contribute to a more thorough understanding of vacation-related consumption, which in Sweden was of growing economic importance from the 1930s and onwards. LÄS MER

  7. 5. High-Speed Electroabsorption Modulators and p-i-n Photodiodes

    Författare :Robert Lewén; KTH; []
    Nyckelord :Optical communication; Fiber optic; Electroabsorption modulators; p-i-n photodiodes; transmission line; traveling wave; high-speed; microwave photonics;

    Sammanfattning : This thesis presents methods for optimization ofelectroabsorption modulators (EAM) and p-i-n photodiodes (PD)withrespect to high frequency (HF) performance. Differentreactive matching techniques are investigated such as lumpedmatching and integrated transmission line (TML) layouts includingoperation in the traveling-wave (TW) regime. LÄS MER