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  • 1
    Electronic Resource
    Electronic Resource
    Ontogenic development of peptide hormones in the mammalian fetal pancreas (1988)
    Springer
    Cellular and molecular life sciences 44 (1988), S. 1-9 
    Details
    ISSN: 1420-9071
    Keywords: Insulin ; glucagon ; pancreatic polypeptide ; somatostatin ; fetal pancreas ; ontogeny ; immunocytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The ontogeny of insulin, glucagon, PP and somatostatin in the mammalian fetal pancreas has been examined in recent years largely by immunocytochemistry and in some instances by radioimmunoassay. Complete ontogenic data are available only for the rat, human pig and sheep. Figure 3 compares the time of appearance of the endocrine cell-types within the fetal pancreas when the periods of gestation of the four species are converted to a uniform scale. The striking ontogenic difference in the rat probably reflects the immaturity of the rodent fetus at birth compared with the human, pig and sheep. In the fetal pancreas, differences in cell number of glucagon and PP cells in the dorsal and ventral lobes become apparent from an early gestational period. Factors responsible for the functional and structural maturation of the fetal pancreatic endocrine cells and the processes involved in pancreatic organogenesis are poorly understood. Studies in these areas would have clinical implications since it may be possible in the future to employ agents for selective replication of fetal β-cells for transplantation in patients with Type I diabetes, bearing in mind that such cells must have the capacity to respond to normal stimuli and repressors when transplanted. The presence of the other islet cell-types may be obligatory for these appropriate responses. This would require a more complete knowledge of those factors which produce the normal selectivity of the four hormonal cell-types.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01960221
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  • 2
    Electronic Resource
    Electronic Resource
    A Beacon Sandstone : its Petrology and Hydrocarbon Content (1963)
    [s.l.] : Nature Publishing Group
    Nature 199 (1963), S. 686-687 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Beacon Sandstones extend throughout eastern Antarctica in the region of the Great Fault Scarp. The succession, consisting of nearly horizontal strata interleaved with dolerite sills, characterize the tabular mountains for more than a thousand miles1. In some places, such as north of the Mackay ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/199686b0
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  • 3
    Electronic Resource
    Electronic Resource
    Sulphates of Mercury and Standard Cells (1932)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 36 (1932), S. 2083-2086 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j150337a013
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  • 4
    Electronic Resource
    Electronic Resource
    The Rôle of Finely Divided Mercury in the Depolarizer of the Standard Cell. (1933)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 37 (1933), S. 271-277 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j150345a001
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  • 5
    Electronic Resource
    Electronic Resource
    Diffusion in Standard Cells. (1933)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 37 (1933), S. 245-252 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j150344a010
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  • 6
    Electronic Resource
    Electronic Resource
    The Standard Battery. (1933)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 37 (1933), S. 489-493 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j150346a010
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  • 7
    Electronic Resource
    Electronic Resource
    The Use of Nicotinamide in the Prevention of Type 1 Diabetes (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 696 (1993), 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.1749-6632.1993.tb17169.x
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  • 8
    Electronic Resource
    Electronic Resource
    Not there yet (1996)
    [s.l.] : Nature Publishing Group
    Nature 379 (1996), S. 396-396 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - Pace Heilbron and Bynum, it would surely be appropriate to commemorate the sixth millenary of "the beginning of time" according to James Ussher at the autumn equinox of 1997, that is, 1997 September 22 23.54 UTC. Some precision in the timing should be used in recognition of Ussher's own ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/379396d0
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  • 9
    Electronic Resource
    Electronic Resource
    The chemistry of gabbro/amphibolite transitions in South Norway (1974)
    Springer
    Contributions to mineralogy and petrology 47 (1974), S. 63-76 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Trace element data are presented for sixteen gabbro (hyperite)/amphibolite pairs which were collected from geological situations where it seems clear that the amphibolite formed from material similar in composition to that of the adjacent hyperite. The metamorphism of hyperite to amphibolite was not isochemical with respect to some trace elements. Cl, V and Rb were increased, as possibly was Zr. S and Zn were diminished, as possibly was Co. Sr and Ba are rather constant in the hyperites and appear to have been irregularly dispersed during the amphibolitisation. The trace element movement patterns are consistent with the known changes in the major elements, which have been reported earlier (Elliott, 1973). The introduced material was added during metamorphism under amphibolite facies conditions, by upward migration from an originally subjacent granulite facies zone. The evidence supports a hydrous fluid diffusion process for the mechanism of transfer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00418557
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  • 10
    Electronic Resource
    Electronic Resource
    The chemistry of gabbro/amphibolite transitions in South Norway (1973)
    Springer
    Contributions to mineralogy and petrology 38 (1973), S. 71-79 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Sixteen gabbro (hyperite)/amphibolite pairs were collected from geological situations where it seems clear that the amphibolite formed from material similar in composition to that of the adjacent hyperite. Major element analyses show that the hyperite to amphibolite transition was not an isochemical one. K2O, H2O, P2O5 and Fe2O3 were increased strongly. CaO and FeO were diminished; SiO2 may have been also. TiO2, total iron, MgO, MnO and Na2O were static; so probably was Al1O3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00371727
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