Sökning: "Spot Image"

Visar resultat 11 - 15 av 49 avhandlingar innehållade orden Spot Image.

  1. 11. Preoperative MRI and PET in suspected low-grade gliomas : Radiological, neuropathological and clinical intersections

    Författare :Anna Falk Delgado; Elna-Marie Larsson; Anja Smits; Jens Sörensen; John Hald; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Low-grade glioma; MRI; PET; FA; MD; Perfusion; Diffusion; Neuropathology; Oligodendroglioma; Astrocytoma; PET; tractography; DTI; DTT; Radiologi; Radiology;

    Sammanfattning : Background: Gliomas are neuroepithelial tumours classified by cell type and grade. In adults, low-grade gliomas are comprised mainly of astrocytomas and oligodendrogliomas grade II. LÄS MER

  3. 12. Bioinformatics, evolution and revolution in our understanding of toxin-antitoxin systems

    Författare :Chayan Kumar Saha; Gemma C. Atkinson; Victoria Shingler; Gipsi Lima Mendez; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Bioinformatics; Alarmones; Evolution; Gene neighbourhood; Toxin; Antitoxin; molekylärbiologi; Molecular Biology;

    Sammanfattning : Bacteria experience a wide range of natural challenges during their life cycles, to which they must respond and adapt to live. Under stressed conditions such as amino acid starvation, bacteria slow down their growth mechanism by producing small alarmone nucleotides guanosine pentaphosphate (pppGpp) and tetraphosphate (ppGpp), collectively referred to as (p)ppGpp. LÄS MER

  4. 13. L.M. Ericsson's internationalization in Africa from 1892 to 2012 : A study of key factors, critical events, and core mechanisms

    Författare :Matthias Holmstedt; Martin Johanson; Jukka Hohenthal; Rebecca Piekkari; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Internationalization; Ericsson; Africa; Telecom-vendor; Telecom industry; History; Process; Case study; Uppsala model; Mechanism; Multifaceted-specific view; Business Studies; Företagsekonomi;

    Sammanfattning : This thesis identifies three important shortcomings in firm internationalization research. The first problem is that the field has generally neglected the role of time and history, and evaluations of how well theories of firm internationalization cope with the test of time are therefore limited. LÄS MER

  5. 14. Ultrafast Coherent X-ray Diffractive Nanoimaging

    Författare :Filipe R. N. C. Maia; Janos Hajdu; David van der Spoel; Keith Nugent; Uppsala universitet; []
    Nyckelord :XFEL; Phasing; Image Reconstruction; Single Particle Imaging; Ultrafast Diffraction; X-ray diffraction; Coherent Diffractive Imaging; CXDI;

    Sammanfattning : X-ray lasers are creating unprecedented research opportunities in physics,chemistry and biology. The peak brightness of these lasers exceeds presentsynchrotrons by 1010, the coherence degeneracy parameters exceedsynchrotrons by 109, and the time resolution is 105 times better. LÄS MER

  7. 15. The visual ecology of bees - Tales of diverse eyes and behaviours

    Författare :Pierre Tichit; Funktionell zoologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Animal behaviour; Arthropods; Bumblebees; Compound Eyes; Crystalline cones; Flight control; Image analysis; Landing; Sensory ecology; Stingless bees; Vision; X-ray microtomography;

    Sammanfattning : The buzzing flight of bees is a popular summer hit. Yet, outside of a few familiar species of honeybees and bumblebees, these fantastic little creatures are still mostly unknown. With about twenty-five thousand species, bees are a very diverse group. They can be found in drastically different habitats. LÄS MER