Sökning: "Plunge"

Visar resultat 6 - 10 av 10 avhandlingar innehållade ordet Plunge.

  1. 6. Investigating polymorphism in small molecules using three-dimensional electron diffraction

    Författare :Molly Lightowler; Xiaodong Zou; Hosea M. Nelson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; 3D electron diffraction; structure determination; polymorphism; crystallisation; phase identification; small molecule; oorganisk kemi; Inorganic Chemistry;

    Sammanfattning : For scientific, regulatory and intellectual property reasons, the discovery and characterisation of polymorphic systems is an integral aspect of the development process of any solid-formulated drug product. Yet, these studies are often hindered by crystal quality and size, poor yields and the generation of mixtures of phases. LÄS MER

  3. 7. Revealing the architecture and composition of the sperm flagellum tip

    Författare :Davide Zabeo; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cell biology; Structural biology; Microtubules; Electron microscopy; Cryo-electron microscopy; Cryo-electron tomography;

    Sammanfattning : The eukaryotic flagellum is a membrane-bound protruding organelle with a cytoskeleton of microtubules. Flagella are found in unicellular as well as multicellular organisms, performing a variety of functions. LÄS MER

  4. 8. Development and Evaluation of Preparation Methods for the Analysis of Cell Membranes Using Time-of-Flight Secondary Ion Mass Spectrometry

    Författare :Jakob Malm; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; salt; cryofixation; TOF-SIMS; supported phospholipid bilayer; freeze drying; vacuum; cells; POPC; glutaraldehyde;

    Sammanfattning : The aim of this work was to evaluate and develop methods for preparing dry samples for TOF-SIMS analysis of cell membranes. For correct interpretation of the analysis data, an understanding of the effects that the preparation method has on the morphology and chemical structure of the sample must first be obtained. LÄS MER

  5. 9. Geophysical Studies Bearing on the Origin of the Arctic Basin

    Författare :Nina Lebedeva-Ivanova; Christopher Juhlin; David Gee; Ruth Jackson; Uppsala universitet; []
    Nyckelord :refraction seismic; reflection seismic; crustal structure; Arctic Ocean; Amerasia Basin.; Geofysik med inriktning mot seismologi; Geophysics with specialization in Seismology;

    Sammanfattning : Deep troughs and ridges of the Arctic Basin are some of the least known features of the Earth's crust. Some of the ridges, eg. Chukchi and Nordwind, are connected directly to the continental shelves and are certainly submarine promontories of the latter. LÄS MER

  7. 10. Application of imaging TOF-SIMS in cell and tissue research

    Författare :Katrin Richter; Göteborgs universitet; []
    Nyckelord :TOF-SIMS; imaging mass spectrometry; cryopreparation; ions; lipids; galactosylceramide; sulfatide; fatty acids;

    Sammanfattning : This thesis is aimed at extending the use of TOF-SIMS (time of flight secondary ion mass spectrometry) as an analytical tool in cell and tissue research. TOF-SIMS is a relatively new method that allows analysis of the chemical composition of sample surfaces. LÄS MER