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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Materials research innovations 4 (2000), S. 3-26 
    ISSN: 1433-075X
    Keywords: Keywords Perovskite ; Crystal-chemistry ; Tolerance factor ; Ferroics ; Electro-ceramics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract  Starting with the history of the fundamental science of the relation of structure to composition delineated completely by Goldschmidt, we use the perovskite structure to illustrate the enormous power of crystal chemistry-based intelligent synthesis in creating new materials. The perovskite structure is shown to be the single most versatile ceramic host. By appropriate changes in composition one can modify the most significant electroceramic dielectric (BaTiO3 and its relatives) phase in industry, into metallic conductors, superconductors or the highest pressure phases in the earth. After an historical introduction of the science, detailed treatment of the applications is confined to the most recent research on novel uses in piezoelectric, ferroelectric and related applications.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Molecular genetics and genomics 257 (1998), S. 568-575 
    ISSN: 1617-4623
    Keywords: Key words Rye ; Secale cereale ; Dispersed repeat ; Chromosome-specific libraries ; YAC
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A dispersed, rye-specific element has been used to isolate clones of rye origin from wheat plants containing only a single rye chromosome arm or segment. In this way a set of 23 YAC clones has been isolated from the short arm of rye chromosome 1 (1RS). This technique was extended to isolate clones from a small region of 1RS that contains a large number of agronomically important genes. The targeted cloning method allowed the isolation of 26 classes of lambda clones representing about 5% of the region. Ten of the lambda clones could be mapped to segments within this region. A third example of the application of this technique involved the isolation of clones from a very small but fully functional rye chromosome, the midget chromosome. These clones have allowed the confirmation of the origin of the midget from 1RL, and may provide a tool for the isolation of structural elements of cereal chromosomes. This technique allows the identification of clone libraries for any rye chromosome or chromosome arm, since substitution, addition and translocation lines are available for all rye chromosomes. Furthermore, the technique allows isolation of clones derived from segments of the rye genome recombined into wheat. The method is technically simple and both lambda and YAC libraries can be constructed. Synteny between the genomes of the cereals allows region-specific libraries from rye to be used to target regions of the wheat and barley genomes.
    Type of Medium: Electronic Resource
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