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  • Articles  (13)
  • Wiley-Blackwell  (7)
  • Blackwell Publishing Ltd  (6)
  • American Geophysical Union (AGU)
  • American Meteorological Society (AMS)
  • 1980-1984  (8)
  • 1970-1974  (5)
  • 1
    Electronic Resource
    Electronic Resource
    TRANSIENT ELECTROMAGNETIC RESPONSE NEAR A FAULT ZONE (1972)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical prospecting 20 (1972), S. 0 
    Details
    ISSN: 1365-2478
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Physics
    Notes: Recent improvements in instrumentation and field techniques have made time domain electromagnetic methods more acceptable. This acceptance has prompted further theoretical work for use in the interpretation of field data.The asymptotic solutions for the transient electromagnetic field components in the vicinity of a fault zone separating two media of high resistivity contrast are obtained for low frequency or late time. Excitation is by normally incident plane waves at the earth's surface. Because of the slow convergence of the asymptotic time series expansions, a numerical polygonal inversion is performed on the real part, or in-phase term, of the time-harmonic surface expressions for the electric and magnetic field components.For both impulsive and step excitation the transient electric field normal to the contact is more sensitive to changes in the structural attitude of the fault plane than the transient electric field parallel to the contact. The transient anomalous vertical magnetic field for either impulsive or step excitation appears to be most diagnostic of dip angle, although waveform shape does not seem to be significantly dependent on the slope of the fault. For dip angles greater than 90 degrees, as measured on the poorly conducting side of the contact, all field components become more insensitive as indicators of the structural attitude. The results presented here should be useful in obtaining several geologic parameters descriptive of a fault zone or lateral resistivity inhomogeneity from transient electromagnetic soundings; they should also provide an aid to differentiating with available geological information between layering effects on transient electromagnetic responses and effects largely due to lateral changes in resistivity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2478.1972.tb00669.x
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  • 2
    Electronic Resource
    Electronic Resource
    OVARIAN DEFECT IN RATS CARRYING THE GROWTH AND REPRODUCTION COMPLEX (1983)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 10 (1983), S. 0 
    Details
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The growth and reproduction complex contains recessive genes (grc) which influence body weight and gonadal development. Homozygous males are sterile, and they have an arrest of spermatogenesis at the primary spermatocyte stage. Homozygous females are fertile but have a reduced reproductive capacity. The data presented in this paper show that the latter defect is associated with a decrease in the relative number of secondary ovarian follicles and an increase in the number of atretic follicles. This finding indicates that most of the primary follicles do not mature properly. Thus, the genetic defect in gametogenesis controlled by the grc appears to occur at the same stage of development in both females and males.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.1983.tb01017.x
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  • 3
    Electronic Resource
    Electronic Resource
    INFLUENCE OF BLOOD FLOW-INDEPENDENT FACTORS ON CEREBRAL IMPEDANCE (1970)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 170 (1970), 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.1749-6632.1970.tb17721.x
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  • 4
    Electronic Resource
    Electronic Resource
    A Lecithinase from the Amoeba Hartmannella rhysodes (1970)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 17 (1970), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS A lipogenic toxin produced by the amoeba Hartmannella rhysodes, Fernald strain, made mammalian cells in culture round up and fill with fat droplets. From this toxin an enzyme was obtained with lecithinase and lysolecithinase activities. This enzyme is different from any isolated elsewhere. When purified enzyme was added to strain L mouse fibroblasts in culture, the cells rounded up and became fatty. Much of the lipogenic activity of the original toxin can be ascribed to this enzyme.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1970.tb04711.x
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  • 5
    Electronic Resource
    Electronic Resource
    Respiration during seed maturation (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 57 (1983), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The contribution of cytochrome and alternative pathways to respiration during soybean [Glycine max (L.) Merr. cv. Chippewa 64] seed formation and maturation was measured by oxygen consumption of embryonic axis and cotyledon tissues and of mitochondria isolated from immature seeds. Respiration rates (dry weight basis) declined duing the last month of seed maturation. Cyanide sensitive respiration (cytochrome pathway) accounted for 80 to 90% of total oxygen consumption throughout seed formation and maturation. The proportion of the total respiration resistant to 1 mM cyanide and inhibited by 1 mM salicylhydroxamic acid (alternative pathway) did not exceed 6%. A residual oxygen consumption, accounting for 5 to 15% of total respiration, persisted in the presence of both inhibitors. Likewise, virtually no alternative respiration was found in mitochondria prepared from immature seeds. The alternative respiratory pathway seems absent during soybean seed formation and maturation regardless of whether grown in the greenhouse or field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1983.tb02758.x
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  • 6
    Electronic Resource
    Electronic Resource
    THE MULTI-USER ZONE OF THE GULF OF MEXICO -ITS PROMISE AND PROBLEMS (1970)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the American Water Resources Association 6 (1970), S. 0 
    Details
    ISSN: 1752-1688
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1752-1688.1970.tb00519.x
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  • 7
    Electronic Resource
    Electronic Resource
    Richtlinien für die Planung und den Bau von LaboratorienGekürzte Fassung eines Übersichtsvortrages auf der Dechema-Jahrestagung vom 17. bis 24. Juni 1970 in Frankfurt/M. (1971)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 43 (1971), S. 645-651 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Um bei der Planung von Laboratorien zu optimalen Lösungen zu gelangen, müssen Architekten und Naturwissenschaftler ihre Forderungen in hohem Maße aufeinander abstimmen, was erfahrungsgemäß aufgrund ihrer unterschiedlichen Denkgewohnheiten, Absichten und Erfahrungen meist nur schwer gelingt. Der folgende kurze Überblick über einige der wichtigsten Grundlagen für den Laborbau soll dem Ingenieur und Naturwissenschaftler Hinweise geben, wie die von der Funktion des geplanten Gebäudes her bestimmten Forderungen den Baufachleuten in technisch verständlicher Form vorzugeben sind. So werden aus arbeitsphysiologischer Sicht die Maße der Arbeits-, Bedien- und Verkehrsflächen bestimmt und hieraus an Beispielen die Variationsbreiten eines Raummoduls abgeleitet. Die Vor- und Nachteile der gebräuchlichen Installationssysteme werden erörtert zusammen mit den wesentlichen Maßnahmen zur Gewährleistung der Anpaßbarkeit von Laboreinrichtungen an wechselnde Arbeitsanforderungen.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330431102
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  • 8
    Electronic Resource
    Electronic Resource
    Water mobility in a water-soaked nafion® membrane: A high-resolution neutron quasielastic study (1982)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 20 (1982), S. 481-496 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Water mobility in an acid Nafion® membrane containing ca. 15% water by weight has been studied by high-resolution neutron quasielastic scattering (NQES). The data are analyzed in terms of simple models. On a scale of ca. 10 Å, the water molecules move practically as freely as in bulk water, but their long-range motion is much more hindered. These results are important for an understanding of the relation between the microstructure and the macroscopic properties of these membranes. To our knowledge, this is the first detailed NQES study of the water-polymer interaction problem.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1982.180200310
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  • 9
    Electronic Resource
    Electronic Resource
    Photoelektronenspektroskopie an NiobiodidenProfessor Walter Rüdorff zum 75. Geburtstage am 3. Oktober 1984 gewidmet (1984)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 516 (1984), S. 55-66 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Photoelectron Spectroscopy on Niobium IodidesThe photoelectron spectra (AlKα, HeI) of NbI5, NbI4, Nb3I8, Nb6I11, HNb6I11, Nb6I8(CH3NH2)6, Nb6I8(C3H7NH2)6, and Nb are measured and discussed. It is shown that the binding energy of the niobium core levels depends linearly on the oxidation number n (n = I/Nb). The relation BE = 201.8 + 1.07 · n holds for the Nb 3d5/2 level. Using this relation the hydridic character of the hydrogen in HNb6I11 becomes plausible and the increased electron concentration of the Nb6I8 cluster in the compounds Nb6I8(CH3NH2)6 and Nb6I8(C3H7NH2)6 is verified. Energy gaps Eg = 0.40 (0.45) eV are found for Nb6I11(HNb6I11) and for the amines the top of the valence band is 0.70 (CH3NH2) and 0.68 eV (C3H7NH2), resp. below the Fermi level.
    Notes: Es werden die Photoelektronenspektren (AlKα, HeI) von NbI5, NbI4, Nb3I8, Nb6I11, HNb6I11, Nb6I8(CH3NH2)6, Nb6I8(C3H7NH2)6 und Nb gemessen und diskutiert. Es läßt sich zeigen, daß die Bindungsenergie BE der Niob-Rumpfniveaus linear von der Oxydationszahl n (n = I/Nb) abhängt; für das Nb 3d5/2-Niveau ergibt sich die Beziehung BE = 201,8 + 1,07 · n. Durch Anwendung dieser Beziehung wird der hydridartige Charakter des Wasserstoffs in HNb6I11 wahrscheinlich gemacht sowie die Zunahme der Elektronenkonzentration im Nb6I8-Cluster der Verbindungen Nb6I8(CH3NH2)6 und Nb6I8(C3H7NH2)6 belegt. Für Nb6I11(HNb6I11) ergibt sich eine verbotene Zone Eg = 0,40 (0,45) eV, für die Amine ist der Abstand der Oberkante des Valenzbandes zur Fermi-Kante 0,70 (CH3NH2) bzw. 0,68 eV (C3H7NH2).
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19845160909
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  • 10
    Electronic Resource
    Electronic Resource
    Preparation, Properties, and ESCA Characterization of Vanadium Surface Compounds on Silicagel. I (1981)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 483 (1981), S. 181-192 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Darstellung, Eigenschaften und ESCA-Charakterisierung von Vanadium-Oberflächenverbindungen an Silicagel. IV 2p3/2-Bindungsenergiewerte (BE) von 18 Vanadium-Verbindungen in Sauerstoff- und Chlorumgebung wurden ermittelt. Bindungsenergien in Abhängigkeit von der Oxidationszahl wurden hinsichtlich eines linearen Zusammenhangs kritisch überprüft, um so geeignete Modellverbindungen für Vergleichstandards auswählen zu können.Im allgemeinen beobachtet man bei einer Zunahme der formalen Oxydationszahl auch eine Erhöhung der Bindungsenergiewerte; im Einzelfall kann dies aber durch elektronenschiebende/ziehende Liganden überdeckt werden.Die mit Hilfe eines Computerprogramms durchgeführte Subtraktion des überlagernden O 1s Satellitenpeaks verbesserte die Genauigkeit der Vanadium 2p3/2-Bindungsenergiewerte erheblich in Oberflächenverbindungen.Die gefundenen Bindungsenergiewerte für (≡Si—O)3V=O(I), (≡Si—O)3V(II) und (≡Si—O)3V—(O2) (III) zeigen im Vergleich zu den trägerfreien Standardverbindungen eine BE-Erhöhung um 2,1 eV und damit die ausgeprägte elektronenziehende Wirkung des Trägermaterials auf das Vanadium in Oberflächenverbindungen. Über ESCA-Daten eines Oberflächen-Peroxokomplexes (III) wird zum ersten Male berichtet; einige Folgerungen der Ergebnisse werden diskutiert.
    Notes: Binding energies (BE) of 18 pure vanadium compounds (V 2p3/2 niveau) were measured in selected oxygen and chlorine environments, linearity of BE vs. oxidation states scrutinized and appropriate model compounds chosen as comparative standards.The general trend is an increase of BE with formal oxidation state; in particular, it could be counterbalanced by electron donating/withdrawing ligands on the V atom.A graphical (computerized) background substraction method was utilized to remove an interfering O 1s satellite peak and to enhance accuracy of BE values in surface compounds.BEs of (≡Si—O)3V=O (I), (≡Si—O)3V (II), and (≡Si—O)3V—(O2) (III) were determined. By comparison to standards positive BE shifts of about 2.1 eV were derived indicating the strong electron withdrawing (“electron sink”) effect of the support on V in surface compounds. This is the first reported ESCA data on a surface peroxo complex, (III). Some implications of the results are also discussed.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19814831223
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