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  • 1
    Electronic Resource
    Electronic Resource
    Successful principalship: the Swedish case (2005)
    Bingley : Emerald
    Journal of educational administration 43 (2005), S. 595-606 
    Details
    ISSN: 0957-8234
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Education
    Notes: Purpose - This paper seeks to describe the Swedish compulsory school system and explore a hypothesis about the relationship between structure, culture and leadership as preconditions for successful principalship. Design/methodology/approach - On the basis of earlier research, argues that a principal's success depends on how he or she alters school structures and cultures so as to foster school improvement. A successful school is defined in Swedish law and policy documents as a school that shows high performance both in academic and social goals. Based on this definition, three schools were chosen for this study. All three had increased their academic results in the last four years. Findings - Findings from the study support the hypothesis that principals contribute to the improvement of academic and social goals of their schools by the strategic work they do to change school structure and culture. Furthermore, the principals changed their schools' structures and cultures in directions that were consistent with the opinions and cultures of the school district. Being able to read and work with the culture and structure of the school district was vital for principal success. Originality/value - Provides information on the important relationship between structure, culture and leadership as preconditions for successful principalship.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/09578230510625692
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Assumptions about participating in teacher education through the use of ICT (2005)
    Bradford : Emerald
    Campus-wide information systems 22 (2005), S. 154-161 
    Details
    ISSN: 1065-0741
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Computer Science
    Notes: Purpose - With a philosophical stance in relation to education, this paper aims to discuss different understandings of participation in an information and communication technology (ICT)-supported distance-based teacher education program in Sweden. Design/methodology/approach - The paper is based on early results from two studies, both of which involved a group of teacher-trainees, with one interview and one questionnaire. Findings - The findings indicate that there is a need to be explicit about the ontological assumptions inherent in the intended use of ICT. The conclusion is that the program in question is built on assumptions of realism and that ICT lays the ground for individual participation and works to tell the students apart. Originality/value - Helps in understanding how ICT, and its use, can have different effects on different groups.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/10650740510606153
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Latent Forms of TGF-β: Structure and Biology (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 593 (1990), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1990.tb16099.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Oligomer formation of staphylococcal α-toxin analyzed by electron microscopy and image processing (1992)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 105 (1992), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract The 12S oligomeric form of Staphylococcus aureusα-toxin has been studied with electron microscopy after incubation of the toxin with membrane preparations or liposomes. The target material originated from human platelet. Different electron microscopic preparation techniques were used including negative staining, freeze-fracture and vitrification in liquid ethane. Analysis of micrographs with image processing methods revealed two groups of ring-like structures corresponding to α-toxin oligomers. One form measured 75 Å in diameter and had a high stain density in the central protein deficient part while the other was larger with a diameter of 100 Å and less stain accumulation in the center. The conditions under which the latter were formed suggest that this corresponds to an inactive loosely-bound form of the toxin. The high stain density in the smaller particle is consistent with the presence of a penetrating pore in this structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1992.tb05880.x
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Digitization of electron micrographs: A comparison of three different types of scanners (1988)
    New York, NY : Wiley-Blackwell
    Journal of Electron Microscopy Technique 8 (1988), S. 381-388 
    Details
    ISSN: 0741-0581
    Keywords: Image processing ; Molecular structure ; Resolution assessment ; Optical density response ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Natural Sciences in General
    Notes: Some aspects of digitization of electron micrographs have been investigated. The performances of a flat-bed, a rotating drum, and a diode array scanner have been evaluated. Estimates have been achieved for resolution, mechanical and optical stability, and optical density response. It is concluded that for routine transmission electron microscopy of, for example, negatively stained biologic specimens, a diode array scanner produces data good enough to obtain resolutions at a level normally expected. High speed is the major advantage with this type of equipment. However, for high-resolution work it is necessary to use a conventional scanner with a relatively slow scan speed.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jemt.1060080407
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    Paper (German National Licenses)
    Fulltext
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