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  • Artikel: DFG Deutsche Nationallizenzen  (5)
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  • Artikel: DFG Deutsche Nationallizenzen  (5)
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  • 1
    Digitale Medien
    Digitale Medien
    Studies on the performance of modulating thickness linear periodic magnets
    Amsterdam : Elsevier
    Nuclear Instruments and Methods in Physics Research Section A: 262 (1987), S. 191-196 
    Details
    ISSN: 0168-9002
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Physik
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9002(87)90855-2
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Modulating thickness multipole permanent magnets
    Amsterdam : Elsevier
    Nuclear Instruments and Methods in Physics Research Section A: 273 (1988), S. 63-66 
    Details
    ISSN: 0168-9002
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Physik
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9002(88)90799-1
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Spatial and temporal localization of FGF receptors in Xenopus laevis (1992)
    Springer
    Development genes and evolution 201 (1992), S. 334-339 
    Details
    ISSN: 1432-041X
    Schlagwort(e): Mesoderm ; FGF receptors (flg) ; Growth factors ; Embryonic induction ; Competence
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Mesoderm formation is a result of cell-cell interactions between the vegetal and animal hemisphere and is thought to be mediated by inducing peptide growth factors including members of the FGF and TGFβ superfamilies. Our immunochemical study analyses the distribution of FGF receptors coded by the human flg gene during embryogenesis of Xenopus laevis. Immunostaining was detected in the dorsal and ventral ectoderm and also in the marginal zone of early cleavage, blastula and gastrula stages. Signals were very strong in the mid and late blastula (stage 8 and 9) and declined slightly in the early gastrula (stage 10). A dramatic decrease was observed up to the late gastrula (stage 11+). In stage 13 embryos, immunostaining was only found in cells around the blastopore. Isolated ectoderm cultured in vitro showed a similar temporal expression and decrease of the signal as the normal embryos. These results indicate that receptor expression is independent of the interaction of the animal cells with the vegetal part of the embryo. Of interest is the fact that the signal cannot only be found at or near the cell surface but also within the cell. This suggests the presence of an intracellular isoform of the receptor resulting from the endogenous expression of splice variants and the internalization of transmembrane receptor. Taken together our results suggest that the loss of competence (for bFGF around stage 10) is not directly correlated with the presence of receptors. The possible roles of heparan sulphate glucosaminoglycans (low affinity receptors) and control mechanisms in the intracellular signalling pathway downstream of the receptor level should be taken into consideration.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00365120
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  • 4
    Digitale Medien
    Digitale Medien
    The lifetime of conditioned Brownian motion in planar domains of infinite area (1991)
    Springer
    Probability theory and related fields 87 (1991), S. 469-487 
    Details
    ISSN: 1432-2064
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik
    Notizen: Summary In this paper, it is shown that all expected lifetimes ofh-processes inD are finite if and only if the area ofD is finite ifD={(x,y):ø_(x)〉y〈ø+(x), − ∞〈x〈∞}, where ø_(x)〈ø+ are two Lipschitz functions. We show that if Ω is a bounded convex region in the plane, there is anh-process in Ω with expected lifetime at leastc area (Ω). We also give an example of a planar domainD of infinite area such that the expected lifetime of eachh-process inD is finite.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01304276
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  • 5
    Digitale Medien
    Digitale Medien
    Separation and Detection of Metal Ions in Ecological Samples by Capillary Zone Electrophoresis with Indirect UV Detection (2000)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 23 (2000), S. 511-514 
    Details
    ISSN: 0935-6304
    Schlagwort(e): CZE ; indirect UV detection ; metal ions ; ecological samples ; Chemistry ; Analytical Chemistry and Spectroscopy
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: ---No abstract
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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