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  • Electronic Resource  (11)
  • Inorganic Chemistry  (4)
  • Secretion  (3)
  • Conference proceedings  (2)
  • Mössbauer spectroscopy  (2)
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  • Electronic Resource  (11)
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  • 1
    Electronic Resource
    Electronic Resource
    Bovine chromaffin cells: Studies on the biosynthesis of phospholipids in chromaffin granules
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Lipids and Lipid Metabolism 1211 (1994), S. 277-282 
    Details
    ISSN: 0005-2760
    Keywords: Chromogranin ; Lysolecithin ; Secretion
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0005-2760(94)90151-1
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  • 2
    Electronic Resource
    Electronic Resource
    Bovine adrenal medulla: Synthesis and secretion of radioactively labelled catecholamines and chromogranins (1971)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 271 (1971), S. 193-203 
    Details
    ISSN: 1432-1912
    Keywords: Adrenal Medulla ; Chromogranin ; Catecholamines ; Synthesis ; Secretion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 1. 3H-leucine and3H-tyrosine were added to the perfusion medium of isolated bovine adrenal glands in order to study the synthesis and secretion of radioactively labelled catecholamines and proteins. 2. Various times after the injection of the labelled amino acids the soluble proteins of the microsomal fraction were isolated and subjected to polyacrylamide gel electrophoresis in three different buffer systems. The distribution of protein-bound radioactivity within the gels was determined. Most of the label was found to be confined to proteins which behaved like the specific soluble proteins of chromaffin granules, i.e. the chromogranins. 3. Stimulation of the adrenal gland with carbachol induced a release of catechol-amines, protein, and protein-bound radioactivity. In the absence of Ca2+ the secretion of all these components was abolished. The highest specific radioactivity of the proteins secreted upon stimulation was reached 4 h after the injection of the labelled precursors. The labelled proteins, secreted upon stimulation, could be identified as chromogranins. 4. Carbachol induced the release of highly labelled catecholamines after the injection of3H-tyrosine. The highest specific radioactivity of these catecholamines was already observed at the first stimulation with carbachol i.e. 30 min after3H-tyrosine. 5. These results demonstrate that in isolated bovine adrenal glands radioactively labelled chromogranins and catecholamines can be synthesised and can be secreted upon stimulation with carbachol.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00998580
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  • 3
    Electronic Resource
    Electronic Resource
    Release of secretoneurin and noradrenaline from hypothalamic slices and its differential inhibition by calcium channel blockers (1994)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 349 (1994), S. 565-569 
    Details
    ISSN: 1432-1912
    Keywords: Secretoneurin ; Noradrenaline ; Large dense core vesicles ; Calcium channel blockers ; Secretion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Secretoneurin is a newly discovered peptide found in high concentrations in brain. We have studied the release of secretoneurin and noradrenaline from superfused hypothalamic slices from rat brain. Both electrical stimulation and potassium induced depolarisation released secretoneurin and noradrenaline from these slices in a calcium-dependent manner. Electrical stimulation caused a preferential release of noradrenaline when compared to the secretion elicited by high potassium. The time course of secretoneurin release was more protracted than that of noradrenaline. The calcium channel blocker ω-conotoxin inhibited only the electrically induced release of noradrenaline, whereas nifedipine inhibited only that of secretoneurin. These results establish that secretoneurin is secreted from neurons. Inhibition of this release by nifedipine is consistent with the concept that secretion from large dense core vesicles occurs at sites different from that of small vesicles and depends on calcium influx via L-type calcium channels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01258460
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  • 4
    Electronic Resource
    Electronic Resource
    Photodissociation of carbonmonoxy-porphyrin complexes (1996)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 18 (1996), S. 353-357 
    Details
    ISSN: 0392-6737
    Keywords: Mössbauer spectra ; Spectra ; photodissociation and photoionization of biomolecules ; bioluminescence ; Measurement of rate constants ; reaction cross-sections and activation energy ; Conference proceedings
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary Partial photodissociation of two carbonmonoxy-porphyrin complexes, a bridged and a fenced one, has been achieved. The results from monitoring the recombination point to an important influence of the solvent matrix on the recombination rates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02458917
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  • 5
    Electronic Resource
    Electronic Resource
    Mössbauer spectroscopy, intracluster atomic mobility and thermodynamics of ultrafine oxide clusters (1996)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 18 (1996), S. 287-292 
    Details
    ISSN: 0392-6737
    Keywords: Phonons and vibrations in crystal lattices ; Solid-liquid transitions ; Thermodynamic properties and entropy ; Conference proceedings
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary Dynamic properties of ultrafine clusters of γ-Fe2O3 (ferric oxide, FO) were studied by Mössbauer spectroscopy and by thermodynamic analysis. The data obtained for FO clusters allowed the conclusion that dynamic properties of clusters as well as the decrease of melting point and the appearance of a gap between freezing and melting points depend on intracluster atomic mobility. Intracluster atomic mobility in FO clusters was shown to increase by the action of surfactants which decrease intercluster interactions. The increase in intracluster atomic mobility was suggested to proceed via formation of a solid-liquid state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02458906
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  • 6
    Electronic Resource
    Electronic Resource
    Low temperature study of myoglobin-ligand rebinding kinetics with Mössbauer spectroscopy (1997)
    Springer
    European biophysics journal 26 (1997), S. 227-237 
    Details
    ISSN: 1432-1017
    Keywords: Key words Carbonmonoxy-Myoglobin ; Recombination kinetics ; Mössbauer spectroscopy ; Scaling law ; Activated tunneling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Abstract We have studied the recombination kinetics of carboxymyoglobin (after photodissociation of the CO ligand) by Mössbauer spectroscopy for temperatures in the range 4.2 – 60 K. The observed kinetics display non-exponential behaviour which was monitored over periods of a few days. It is shown that the time dependence of the kinetics can be reduced to a single universal function of the temperature-dependent variable (t/τ 1/2(T)) β(T) . The half-decay time τ 1/2(T) and the scaling parameter β(T) are analysed for the presence of tunneling effects. The non-Arrhenius temperature dependence of the half-decay time below 60 K is interpreted as activated tunneling in models with an Eckart barrier or a fluctuating barrier.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002490050075
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  • 7
    Electronic Resource
    Electronic Resource
    Interpretation of Mössbauer spectra in the energy and time domain with neural networks (2000)
    Springer
    Hyperfine interactions 126 (2000), S. 421-424 
    Details
    ISSN: 1572-9540
    Keywords: Mössbauer spectroscopy ; nuclear forward scattering ; neural network
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An artificial neural network for extracting reasonable and fast estimates of hyperfine parameters from Mössbauer spectra in the energy or time domain is outlined. First promising results for determining the asymmetry of the electric field gradient at the nucleus of a diamagnetic iron center as derived with different types of neural networks are reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1012606309138
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  • 8
    Electronic Resource
    Electronic Resource
    Darstellung und röntgenographische Untersuchung des Zinkazidtrihydrates Zn(N3)2 · 3 H2O (1975)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 413 (1975), S. 94-96 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and X-ray Investigation of Zinc Azide TrihydrateZn(N3)2 · 3 H2O has been crystallized from an aqueous solution of zinc azide. Single crystals, which are unstable in air, were investigated my means of x-ray techniques. The lattice parameters are: a = 9.95 Å, b = 5.94 Å, c = 14,30 Å, β = 134.55°, N = 4. Indexd powder pattern are listed.
    Notes: Zn(N3)2 · 3 H2O wurde aus wäßriger Zinkazidlösung hergestellt. Die röntgenographische Untersuchung der an Luft unbeständigen Einkristalle ergab folgende Gitterkonstanten: a = 9,95 Å, b = 5,94 Å, c = 14,30 Å, β = 134,55°, N = 4. Indizierte Pulverdaten wurden tabelliert.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19754130112
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  • 9
    Electronic Resource
    Electronic Resource
    Über Salzbildung bei Oxy-guanidinen. (Über innere Komplexsalze. XII) (1914)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 47 (1914), S. 2945-2947 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19140470389
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  • 10
    Electronic Resource
    Electronic Resource
    Über Stereoisomerie bei inneren Komplexsalzen (1909)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 42 (1909), S. 3894-3902 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.190904203144
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