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  • 1995-1999  (11)
  • 1980-1984  (15)
  • 1935-1939  (15)
  • 1
    Electronic Resource
    Electronic Resource
    Organic Reagents1 in Qualitative Analysis. III. The Analysis of the Common Metals of the Alkaline Earth Group and Magnesium Using 8-Hydroxyquinoline (1937)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 59 (1937), S. 941-942 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01284a051
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of Age, Sex and Strain on the Fatty Acid Composition of Goose Muscle and Depot Fats (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 48 (1983), S. 0 
    Details
    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 fatty acid composition of muscle and depot fats from four strains of geese was determined by GLC analysis. Differences due to sex and age of goose were not significant (P 〈 0.01). The major fatty acids of depot fat were oleic (54%), palmitic (22%), linoleic (11%) and stearic (8%). Muscle contained from 4.7–9.6% fat composed mainly of oleic (42%), palmitic (25%), linoleic (14%) and stearic (12%) acids. The muscle fat content of Pilgrim and Hungarian geese was less than that of the Crossbred (P 〈 0.01) and of the Chinese strain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1983.tb03512.x
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  • 3
    Electronic Resource
    Electronic Resource
    Der Übergang des amorphen Metalls in den kristallinen Zustand (1938)
    Springer
    The European physical journal 111 (1938), S. 409-422 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Zusammenfassung Im Anschluß an frühere Arbeiten wird gezeigt, daß sich die amorphe Metallmodifikation auffassen läßt als ein hochkomprimiertes Gas, bei dem durch die Wechselwirkung der Nachbaratome die Ionisierungsenergie um einige Größenordnungen verkleinert ist. Diese Grundannahme Über den Aufbau der amorphen Metallmodifikation wird nicht nur durch das Verhalten der amorphen Schichten, sondern auch durch Experimente auf anderen Gebieten bestätigt. Direkt gezeigt wird zudem der Einfluß der gegenseitigen Atomabstände auf die Höhe der Ionisierungstemperatur durch die Verschiebung der Umwandlungstemperatur durch allseitigen Druck. Die Umwandlung einer amorphen Metallschicht durch den Stoß beschleunigter Elektronen entspricht vollkommen der Ionisierung der Atome im Gas durch Elektronenstoß. Die Versuche, die Struktur dünner Metallschichten durch Elektronenbeugung zu bestimmen, sind nur unter günstigen Umständen einwandfrei; die Bedenken, die im Anschluß an solche Versuche Über die Existenz der amorphen Metallmodifikation aufgekommen sind, haben deswegen keine Berechtigung. Die Verwandtschaft zwischen der amorphen Modifikation und dem dampfförmigen Zustand wird besonders dadurch gezeigt, daß auch bei amorphen Schichten Vorgänge beobachtet werden können, die dem Zeeman-Effekt und dem Stark-Effekt entsprechen: Durch ein Magnetfeld wird die Umwandlungstemperatur verschoben, und die Größe der Verschiebung wird durch die Formel für die Aufspaltung der Spektrallinien beim normalen Zeeman-Effekt wiedergegeben. Als Stark-Effekt im amorphen Metall kann die von Perucca gefundene Widerstandsabnahme dünner Metallschichten im elektrostatischen Feld gedeutet werden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01342358
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  • 4
    Electronic Resource
    Electronic Resource
    Die Supraleitfähigkeit und die amorphe Metallmodifikation (1939)
    Springer
    The European physical journal 111 (1939), S. 423-436 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Zusammenfassung Die amorphe Metallmodifikation verhält sich gegenüber Temperaturerhöhung, äußerem Druck und einem Magnetfeld ganz ähnlich wie ein Supraleiter gegenüber diesen Einflüssen. Außerdem besteht ein stark ausgeprägter Parallelismus zwischen der Höhe der Umwandlungstemperatur der amorphen Metallmodifikation und dem Sprungpunkt bei der Supraleitung. Es wird gezeigt, daß der Sprungpunkt die Ionisationstemperatur der Atome im kristallinen Metall ist und daß unterhalb dieser Temperatur der Elektrizitätstransport auf Quantenbahnen erfolgen kann. Die Höhe der Ionisierungstemperatur, also des Sprungpunktes, wird durch die Wechselwirkung der Nachbaratome bestimmt, sie wird daher wie im amorphen Metall durch Druck erniedrigt, durch Dehnung erhöht. Wie bei der amorphen Metallmodifikation kann unterhalb der Ionisierungstemperatur der noch an der Ionisierungsenergie fehlende Teil durch ein Magnetfeld ersetzt werden, wobei auch in diesem Falle die Größe des Magnetfeldes durch die Formel für die Aufspaltung der Spektrallinien beim normalen Zeeman-Effekt bestimmt wird, sie steht in Übereinstimmung mit dernach Debye ausgerechneten Atomwärme des Metalls. Bei Berücksichtigung der Fermi-Verteilüng der Leitungselektronen wird auch das veränderte Wärmeleitungsvermögen eines Supraleiters verständlich. Das Unterschreiten der Ionisierungstemperatur im kristallinen Metall ist nicht bei allen Metallen mit Supraleitung verbunden, sie kann nur dann auftreten, wenn das Atomvolumen eine passende Größe hat. Durch die Verteilung der Supraleiter im periodischen System der Elemente und durch das Verhalten der supraleitenden Gold-Wismut-Legierung wird das eindrucksvoll gezeigt. Ebenso wie die Kristallisation bei der Ionisierung der Atome im amorphen Metall ist die Supraleitung ein sekundärer Vorgang im Anschluß an die Ionisierung der Atome im kristallinen Metall.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01329501
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  • 5
    Electronic Resource
    Electronic Resource
    Subcellular distribution of mercury in liver of lake trout (Salvelinus namaycush) (1982)
    Springer
    Cellular and molecular life sciences 38 (1982), S. 689-690 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Mercury was found primarily (80%) in the submicroscopic material (magnification x〈7700) of environmentally exposed adult lake trout from Lake Michigan, USA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01964098
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  • 6
    Electronic Resource
    Electronic Resource
    A mycosis of the blood-sucking snipe fly symphoromyia hirta caused by Erynia ithacensis sp.n. (Entomophthoraceae) (1981)
    Springer
    Mycopathologia 75 (1981), S. 159-164 
    Details
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A mycosis was detected in Symphoromyia hirta (Diptera: Rhagionidae) collected near Ithaca, New York. Other dipterous victims of the disease included Rhagio mystaceus and Empis obesa. Afflicted flies, found on the under surfaces of leaves of woody plants, were affixed to the substrate by rhizoids. The pathogen formed both resting spores and conidia on the exterior of the cadavers. It grew rapidly and sporulated abundantly in culture. Attempts to induce infections in Musca domestica and Aedes aegypti were unsuccessful. The pathogen Erynia ithacensis sp. n. forms resting spores that are incised with very irregular ridges. This characteristic serves to separate it from other dipterophilic species of Erynia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00482810
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  • 7
    Electronic Resource
    Electronic Resource
    Culture of Entomophthora muscae in vivo and its infectivity for six species of muscoid flies (1981)
    Springer
    Mycopathologia 76 (1981), S. 139-143 
    Details
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A method for the continuous culture of Entomophthora muscae (Entomophthoraceae) in adult house flies (Musca domestica) is described. Using this method we have maintained the host-pathogen system in the laboratory for more than one year. The ability of this isolate to cause fatal infections in virtually all of the house flies at risk has remained constant. The face fly (Musca autumnalis), the onion fly (Hylemya antiqua), and the seed-corn fly (H. platura) are susceptible to this isolate. The stable fly (Stomoxys calcitrans), the black blow fly (Phormia regina), and the false stable fly (Muscina stabulans) are not.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00437194
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  • 8
    Electronic Resource
    Electronic Resource
    Towards the arithmetic degree of line bundles¶ on abelian varieties (1998)
    Springer
    Manuscripta mathematica 96 (1998), S. 335-370 
    Details
    ISSN: 1432-1785
    Keywords: Mathematics Subject Classification (1991):11F46, 11G10, 14K25, 31B05
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract: In this paper we analyze the integral of the star-product of (n+1) Green currents associated to (n+1) global sections of an ample line bundle equipped with a translation invariant metric over an n-dimensional, polarized abelian variety. The integral is shown to equal the logarithm of the Petersson norm of a certain Siegel modular form, which is explicitly described in terms of the given data. This result can be interpreted as evaluating an archimedian height on a family of polarized abelian varieties. The key ingredient to the proof of the main formula is a dd c -variational formula for the integral under consideration. In the case of dimensions n=1,2,3 explicit examples in terms of classical Riemann theta functions are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002290050071
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  • 9
    Electronic Resource
    Electronic Resource
    Uncoupling of mitochondrial oxidative phosphorylation alters lipid peroxidation-derived free radical production but not recovery of postischemic rat hearts and post-hypoxic endothelial cells (1996)
    Springer
    Molecular and cellular biochemistry 160-161 (1996), S. 167-177 
    Details
    ISSN: 1573-4919
    Keywords: ESR spin trapping ; lipid radicals ; mitochondrial uncoupling ; oxygen consumption ; myocardial reperfusion ; endothelial cell reoxygenation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract The contribution of mitochondrial free radical production towards the initiation of lipid peroxidation (LPO) and functional injury in the post-ischemic heart is unclear. Using the isolated rat heart model, the effects of the uncoupler of mitochondrial oxidative phosphorylation dinitrophenol (DNP, 50 μM final) on post-ischemic lipid peroxidation-derived free radical production and functional recovery were assessed. Hearts were subjected to 30 min total global ischemia followed by 15 min of reperfusion in the presence of DNP. As expected, DNP enhanced oxygen consumption before (11.3 ± 0.9 μmol/min, p 〈 0.001) and during reperfusion (at 10 min: 7.9 ± 0.7 μumol/min), compared to the heart with control treatment (8.2 ± 0.5 and 6.7 ± 0.3, respectively). This effect was only associated with a higher incidence of ventricular tachycardia during reperfusion (80 vs. 50% for control treatment, p 〈 0.05). Electron spin resonance spectroscopy (ESR) and spin trapping with u.-phenyl-tert-butylnitrone (PBN, 3 mM final) were used to monitor free radical generation during reperfusion. The vascular concentration of PBN-radical adducts (untreated: 6.4 ±1.0 nM, at 10 min) decreased in the presence of DNP (1.7 ± 0.4 nM, p 〈 0.01). The radical concentration inversely correlated with myocardial oxygen consumption. Total liberation of free radical adducts during the initial 10 min of reperfusion was reduced by DNP (0.59 ± 0.09 nmol, p 〈 0.01) compared to the respective control treatment (1.26 ± 0.16 nmol). Similar effects, prevention of PBN adduct formation and unchanged viability in the presence of DNP, were obtained with endothelial cells during post-hypoxic reoxygenation. Since inhibition of mitochondrial phosphorylation can inhibit the formation of LPO-derived free radicals after an ischemic/hypoxic interval, mitochondria may represent an important source of free radicals capable of initiating lipid peroxidative injury during reperfusion/reoxygenation. (Mol Cell Biochem 160/161: 167–177, 1996)
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00240047
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  • 10
    Electronic Resource
    Electronic Resource
    The voltage dependence of depolarization-induced calcium release in isolated skeletal muscle triads (1995)
    Springer
    The journal of membrane biology 144 (1995), S. 217-230 
    Details
    ISSN: 1432-1424
    Keywords: Voltage-dependence ; Calcium release ; Skeletal muscle ; Triads ; Fluorescence ; Terminal cisternae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract We demonstrate for the first time in this study that triadic vesicles derived from skeletal muscle display a voltage dependence of depolarization-induced calcium release similar to that found in intact muscle. We confirm previous studies by Dunn (1989) which demonstrated that changes in extravesicular potassium induced membrane potential changes in isolated transverse tubules with the voltage sensitive dye DiSC(3)-5. Depolarization-induced calcium release was studied in isolated triadic vesicles through similar changes in extravesicular [K] while clamping extravesicular Ca++ to submicromolar concentrations. The amplitude of fast phase of calcium release, identified as depolarizationinduced calcium release, varied with the percentage of transverse tubules in the preparation (determined through 3 H-PN200-110 specific activity) and different levels of depolarization. Threshold activation of calcium release was obtained with a 40.5 mV potential change; maximal calcium release was obtained with a 75 to 81 mV potential change. Boltzmann fits to the normalized depolarization induced calcium release plotted against the membrane potential change yielded a voltage dependence (k = 4.5 mV per e-fold change) very similar to that found in intact muscle (k = 3–4 mV per e-fold change; Baylor, Chandler & Marshall 1978, 1983; Miledi et al., 1981). Substitution of methanesulfonate for propionate as the impermeant ion or addition of valinomycin in the depolarizing solutions had little effect on the voltage dependence of calcium release.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00236835
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