Sökning: "light microscopy"

Visar resultat 1 - 5 av 332 avhandlingar innehållade orden light microscopy.

  1. 1. Parietal cell regeneration in rat gastric mucosal wounds a quantitative light and electron microscopical study

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Håkan Blom; Umeå universitet.; [1982]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Rat; gastric mucosa; gastric wounds; parietal cells; re­generation; pyloroplasty; truncal vagotomy; antrectomy; pen­tagastrin; cimetidine; carbacholine; stereology; light microscopy; electron microscopy; pH-studies;

    Sammanfattning : The aims of the study were to obtain a method with which it would be possible to produce standardized wounds in the gastric mucosa, and to follow the regeneration of the acid producing parietal cells in those lesions during different experimental conditions. Quantitative methods applied to light and electron microscopy were used. LÄS MER

  2. 2. Laboratory soft x-ray microscopy and tomography

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Michael Bertilson; KTH.; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Microscopy; X-ray optics; Diffractive optics; Zone plates; X-ray microscopy; Soft X-ray physics; Tomography; NATURAL SCIENCES Physics Other physics Optics; NATURVETENSKAP Fysik Övrig fysik Optik; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik;

    Sammanfattning : Soft x-ray microscopy in the water-window (λ = 2.28 nm – 4.36 nm) is based on zone-plate optics and allows high-resolution imaging of, e.g. LÄS MER

  3. 3. Phase-Contrast and High-Resolution Optics for X-Ray Microscopy

    Detta är en avhandling från Stockholm : KTH

    Författare :Olof von Hofsten; KTH.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Microscopy; X-ray optics; X-ray microscopy; Soft X-ray physics; NATURAL SCIENCES Physics Other physics Optics; NATURVETENSKAP Fysik Övrig fysik Optik; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik;

    Sammanfattning : X-ray microscopy is a well-established technique for nanoscale imaging. Zone plates are used as microscope objectives and provide high resolution, approaching 10 nm, currently limited by fabrication issues. This Thesis presents zone plate optics that achieve either high resolution or phase contrast in x-ray microscopy. LÄS MER

  4. 4. Matrix metalloproteinases in natural killer cells. Expression of MMPs, IL-2 activation and killer cell interactions with Matrigel® and model tumours

    Detta är en avhandling från Göteborg

    Författare :Per Albertsson; Göteborgs universitet.; Gothenburg University.; [2000]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Protease; matrix metalloproteinase; killer cell; IL-2; Matrigel; B16 melanoma; tumour infiltration; invasion assay; zymography; Western blot; RT-PCR; light microscopy; fluorescence; electron microscopy;

    Sammanfattning : Introduction: IL-2 activated natural killer (A-NK) cells can recognize malignant cells and exert tumouricidal activities by multiple mechanisms that require close contact with the target cells. Upon adoptive transfer, some A-NK cells accumulate in tumours by migrating from the vascular bed to a position inside the malignant tissue, forming close contacts with target cells. LÄS MER

  5. 5. Bioimaging for analysis of protein expression in cells and tissues using affinity reagents

    Detta är en avhandling från Stockholm : KTH

    Författare :Emma Lundberg; KTH.; [2008]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Affibody; antibody; biomarker; cell line; cell microarray; colorectal cancer; confocal microscopy; HER2; immunohistochemistry; immunofluorescence; light microscopy; protein expression; protein localization; SATB2; tissue microarray; TECHNOLOGY Bioengineering; TEKNIKVETENSKAP Bioteknik; NATURAL SCIENCES Biology Cell and molecular biology; NATURVETENSKAP Biologi Cell- och molekylärbiologi;

    Sammanfattning : The detection and analysis of biomolecules, such as proteins, are of great interest since these molecules are fundamental for life and our health. Due to the complexity of biological processes, there is a great advantage of studying proteins in their natural context, for example by using bioimaging. LÄS MER