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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 52 (1987), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The influence of monosodium glutamate (MSG) and lamb on characteristics of restructured mutton roasts was evaluated. The status of pyridinoline (a trivalent collagen cross-link) in epimysial and muscle tissues of lambs and ewes was also investigated. Addition of MSG (0.2%) did not significantly alter restructured mutton roast flavor. Restructured roasts made with mutton had higher (P〈0.05) cook losses and Warner-Bratzler shear values, and inferior binding characteristics when compared to roasts made with lamb, and roast characteristics improved linearly with increasing levels of lamb. Pyridinoline content was higher in mutton than lamb. The greater amounts of pyridinoline may be partially responsible for the lower quality restructured mutton roasts.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Stable isotope measurements on molluses from raised marine deposits, and on foraminifera in a piston core, define a series of light isotope events. A major event is14C dated at ca. 10.3 ka and is correlated with a marked isotopic excursion in HU77-021-156. This event is followed by a dramatic rise in diatom and, slightly later, in benthic foraminiferal abundances. Molluses record another light event around 8 ka. Major fluctuations in both δ18O and δ13C around 10.3 ka suggests that the Hudson Strait ice stream may have responded to the Younger Dryas climatic oscillation.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of radioanalytical and nuclear chemistry 114 (1987), S. 351-358 
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Samples of sandstones and shales were analysed by instrumental neutron activation analysis for a total of 30 elements. Three irradiation and five counting periods wer employed. Solutions and National Bureau of Standards Reference Materials wer used for comparison. The samples were obtained from drill cuttings (with a few core samples) from drillings in the Salton Sea geothermal field of California. These determinations form part of a major study to elemental variation as a function of mineral variation as depth and temperature in the well vary. The overall goal is to examine mineral alteration and/or element migration under typical geothermal conditions. The techniques involve typical compromises between maximizing precision for individual element determinations and the amount of time and effort that can be expended, as it is desired to examine large numbers of samples. With the limitations imposed by the reactor flux ailable at the U. C. Irvine TRIGA reactor, the detectors available, and time factors, most precisions are acceptable for geological comparison purposes. Some additional measurements wer made by delayed-neutron counting methods to compare with uranium determinations made by conventional instrumental neutron activation analysis methods.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The extent of amino acid racemization (or epimerization) in proteinaceous residues has become a standard Quaternary dating tool applied primarily to molluscan and foraminiferal fossils. The primary rate-controlling parameters are temperature and, to a lesser extent, taxonomy. Recent summaries ...
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Histochemistry and cell biology 87 (1987), S. 471-478 
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Uteroglobin, a secretory protein of rabbit uterine epithelium, was localized by the direct immunoperoxidase method in control and hCG-induced pseudopregnant rabbits. In control rabbits, uteroglobin was confined to the apical cytoplasm of nearly all cells of the endometrial epithelium. The induction of pseudopregnancy resulted in a pronounced continuing increase, through 4 days post-hCG administration, in the absolute number of epithelial cells engaged in uteroglobin synthesis. Furthermore, the endoplasmic reticulum was more intensely stained for uteroglobin than in the epithelial cells of control rabbit endometrium. Thus, the increased production of uteroglobin, in response to hormonal stimulation, appears to be achieved both through an increase in the amount of uteroglobin synthesized by a given cell as well as by an increase in the number of cells involved in uteroglobin synthesis. Concurrent with the increase in the number of cells synthesizing uteroglobin, an increase in the number of unstained cells first appeared at the second day of pseudopregnancy, during the period of maximal epithelial proliferation. However, within those cells containing uteroglobin on the second day following injection with hCG, most staining was limited to the perinuclear membrane. At various times following hCG administration, a number of scattered cells, intensely stained for uteroglobin, were observed in the uterine epithelium. Based upon ultrastructural studies, failure to exclude trypan blue, and the presence of intra-mitochondrial uteroglobin, they were identified as cither dead or dying cells.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 33 (1987), S. 194-201 
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Pure-component equilibrium data for nitrogen, oxygen, and argon, and multicomponent equilibrium data for air in 20 × 40 mesh 5A molecular sieve were measured at 297.15, 233.15, and 203.15 K and up to pressures of 4 bar. The multicomponent data were analyzed by a statistical thermodynamic model, ideal adsorbed solution theory, an extended Langmuir-Sips equation, and an extended Langmuir equation. The multicomponent system exhibited nonideal behavior at 233.15 and 203.15 K. Isotherm parameters determined in this work may be useful in the design and evaluation of molecular sieve air separation systems.
    Additional Material: 9 Ill.
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  • 7
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Jahn-Teller Distortions of Transition Metal Ions in Tetrahedral Coordination  -  The Structures of Cat[MII(NCS)4]II (MII: Co, Ni, Cu) and of Mixed Crystals MIICr2O4(MII: Zn—Ni, Zn—Cu, Cu—Ni) of the Spinel TypeThe structure determination of compounds Cat[MII(NCS)4] with Cat = p-xylylenebis(triphenylphosphonium)2+ and MII = Co, Ni, Cu [space group P21/n, Z = 4] yielded pseudotetrahedral MIIN4-polyhedra, which are distorted by packing forces and vibronic coupling effects of the Jahn-Teller type. Spinel mixed crystals with MII = Zn—Ni, Zn—Cu, Ni—Cu in the tetrahedral sites exhibit phase transition to tetragonal and o-rhombic structures, induced by cooperative Jahn-Teller interactions. The distortion symmetries of the MIIN4 and MIIO4 tetrahedra are analysed on the basis of the respective electronic groundstate and the possible Jahn-Teller active vibrational modes.
    Notes: Die Strukturbestimmung von Verbindungen Cat[MII(NCS)4] mit Cat = p-Xylylen-bis(triphenylphosphonium)2+ und MII = Co, Ni, Cu [Raumgruppe P21/n, Z = 4] ergab pseudo-tetraedrische MN4-Polyeder, die als Folge von Packungseinflüssen und vibronischen Kopplungseffekten vom Jahn-Teller-Typ verzerrt sind. Bei Spinell-Mischkristallen MIICr2O4 mit normaler Kationenverteilung und MII = Zn—Ni, Zn—Cu, Ni—Cu werden Phasenübergänge zu tetragonalen und o-rhombischen Gittern als Folge kooperativer Jahn-Teller-Effekte beobachtet. Die auftretenden Verzerrungssymmetrien der MN4- und MO4-Tetraeder werden gruppentheoretisch auf der Grundlage der elektronischen Grundzustände und der möglichen Jahn-Teller-aktiven Normalschwingungen analysiert.
    Additional Material: 6 Ill.
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  • 8
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal of Electron Microscopy Technique 5 (1987), S. 385-386 
    ISSN: 0741-0581
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Natural Sciences in General
    Additional Material: 1 Ill.
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  • 9
    Publication Date: 1987-12-01
    Print ISSN: 0556-2813
    Electronic ISSN: 1089-490X
    Topics: Physics
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  • 10
    Publication Date: 1987-11-01
    Print ISSN: 0556-2813
    Electronic ISSN: 1089-490X
    Topics: Physics
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