Search Results - (Author, Cooperation:P. A. Penczek)

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  1. 1
    J. von der Ecken ; M. Muller ; W. Lehman ; D. J. Manstein ; P. A. Penczek ; S. Raunser
    Nature Publishing Group (NPG)
    Published 2014
    Staff View
    Publication Date:
    2014-12-04
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Actins/*chemistry/genetics/*metabolism ; Adenosine Diphosphate/metabolism ; Animals ; Cryoelectron Microscopy ; Magnesium/metabolism ; Mice ; Models, Molecular ; Mutation/genetics ; Protein Conformation ; Rabbits ; Static Electricity ; Tropomyosin/*chemistry/genetics/*metabolism
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    Publication Date:
    2014-07-22
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; Arrestins/*chemistry/*metabolism ; GTP-Binding Proteins/chemistry/metabolism ; *Models, Molecular ; Protein Structure, Quaternary ; Receptors, Adrenergic, beta-2/chemistry/metabolism ; Receptors, G-Protein-Coupled/*chemistry/*metabolism ; Sf9 Cells
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Staff View
    ISSN:
    1741-0444
    Keywords:
    Back-projection ; Computed tomography ; Fast Fourier transform ; Interpolation ; NMR imaging ; Reconstruction methods
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Notes:
    Abstract A new algorithm for image reconstruction is proposed. Because a varying sampling increment is introduced, the interpolation during reconstruction is eliminated and the Fourier transform from modified polar to Cartesian sample grid is applied. The comparison of the back-projection of filtered projections method with the proposed PCFT algorithm is performed on computer-simulated data. Good resolution of the reconstructed images and a relatively short reconstruction time are the merits of the newly developed technique NMR imaging is cited as a possible field of application of the algorithm.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  4. 4
    Staff View
    ISSN:
    1612-1112
    Keywords:
    Polycyclic aromatic hydrocarbons ; HPLC ; Capacity factors ; Correlation analysis
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    Summary Fragmentation of molecules and their representation based on structural pattern is suggested in order to predict the retention characteristics in HPLC. The logarithm of the capacity factor is derived as a sum of logarithms of the structural fragments. The retention behaviour of a polycyclic aromatic hydrocarbon is related to the numerical representation of the individual compounds. In all cases a high correlation coefficient, ranging from 0.97 to 0.99 was obtained. The contribution of the molecule fragments to the capacity factor value is discussed.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses