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  • 1995-1999  (46)
  • 1980-1984  (33)
  • 1975-1979  (19)
  • 1960-1964  (16)
  • 1
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    Buchbesprechungen (1983)
    Springer
    Details
    Publication Date: 1983-12-01
    Print ISSN: 0015-8003
    Electronic ISSN: 1439-0337
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Springer
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    PAPER CURRENT
  • 2
    Electronic Resource
    Electronic Resource
    Einfluß des Applikationsortes auf die Penetration und Translokation von Diclofop-methyl bei Flughafer (Avena fatua L.) (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Weed research 20 (1980), S. 0 
    Details
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Bei Flughafer wurde der Emfluß verschiedener Applikationsorte zwischen Spitze und Basis des Sprosses auf die Penetration und Translokation von 14C-Diclofop-methyl untersucht. Die Penetration liegt an der Basis der Blattspreitc am 1. Blatt um 64% und am 2. Blatt um 95% höher als an der Spitze des jeweiligen Blattes. Die Translokation von 14C-Diclofop-mcthyl in basipeitaler Richtung ist begrenzt. Daher ist die Menge an 14C-Diclofop-methyl an der Sproßbasis, dem Hauptwirkort, um so höher, je näher das Herbizid zur Sproßhasis appliziert wird. Hinsichtlich einer möglichst optimalen Verteilung von 14C-Didofop-methyl in der Pflanze erwies sich die Applikation an die Basis del Blattsprciten als am günstigsten. Dies beruht u.a. darauf daß es bei diesem Applikationsort zu einem Einlaufen der Herbizidlösung in die Blattscheidc und infolgedessen zu einem mechanischen basipetalen Vordringen innerhalb dieser in den Bereich der mcristematischen Gewehe der Sproßbasis kommt. Als Konsequenz daraus ergibt sich die Forderung nach einer möglichst gezielten Deponierung von Diclofop-methyl in den Bereich der Sproßbasis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3180.1980.tb00079.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    EINIGE BEOBACHTUNGEN ZUR VERÄNDERUNG DER VERUNKRAUTUNG WÄHREND MEHRJÄHRIGEN GETREIDEBAUS UND VERSCHIEDENARTIGER UNKRAUTBEKÄMPFUNG (1964)
    Oxford, UK : Blackwell Publishing Ltd
    Weed research 4 (1964), S. 0 
    Details
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Zusammenfassung. Auf einem stark verunkrauteten Feld (guter Lehmboden] wurde die Veränderung der Unkrautflora im Verlauf von 3 Jahren bei verschiedenartiger Unkrautbekämpfung (keine Unkrautbekämpfung; zweimal Blindeggen sowie Eggen im 3-Blattstadium des Getreides; chemische Unkrautbekämpfung mit DNOC) beobachtet In diesem Zeitraum ging die Gesamtverunkrautung als Folge des guten Getreidestandes auch in den Parzellen ohne Unkrautbekämpfung erheblich zurück.Durch jährlich wiederholte, intensive mechanische Unkrautbekämpfung wurde im Verlauf von 3 Vegetationsperioden die Gesamtverunkrautung gegenüber der Kontrolle etwas, der Bestand einzelner Unkrautarten wie Alopecunus myosuroides, Sinapis arvensis und Galeopsis tetrahit erheblich vermindert. Der prozentuale Anteil der grasartigen Unkräuter an der Gesamtverunkrautung entsprach bei Versuchsende dem der unbearbeiteten Parzellen.Durch chemische Bekämpfung mit DNOC wurden im Vergleich zur unbehandelten Kontrolle Sinapis arvensis, Palygonum convolvulus, Galium aparine und die Gesamtverunkrautung stark reduziert, Alopecurus myosuroides dagegen stark gefördert. Das Artenverhältnis änderte sich zugunsten der grasartigen Unkräuter.Some observations on changes in weed populations under continuous cereal cropping and with différent methods of weed control
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3180.1964.tb00308.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    A study of association by hydrogen bonding in the system phenol-CCl4 by the nuclear magnetic relaxation method (1981)
    Springer
    Journal of solution chemistry 10 (1981), S. 419-430 
    Details
    ISSN: 1572-8927
    Keywords: Nuclear magnetic relaxation ; hydrogen bonding ; liquid association ; phenol ; carbon tetrachloride
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The system phenol-CCl4 was studied by measuring proton and deuteron magnetic relaxation rates and self-diffusion coefficients at 25°C. From these data intermolecular relaxation rates have been calculated. By means of an association parameter A, association of phenol molecules with respect to various parts of the molecule has been established. Closest distances of approach between protons and configurations of maximum occurrence probabilities are reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00658010
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  • 5
    Electronic Resource
    Electronic Resource
    Thermodynamics of the Second Dissociation Constant and Standards for pH of 3-(NMorpholino) Propanesulfonic Acid (MOPS) Buffers from 5 to 55°C (1998)
    Springer
    Journal of solution chemistry 27 (1998), S. 73-87 
    Details
    ISSN: 1572-8927
    Keywords: Dissociation constant ; buffers ; NaMOPS ; temperature dependence ; emf ; Gibbs energy ; enthalpy ; entropy ; heat capacity ; zwitterion ; liquid junction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The second dissociation constant pK2 of 3-(N-morpholino)propanesulfonic acid (MOPS) has been determined at eight temperatures from 5 to 55°C by measurements of the emf of cells without liquid junction, utilizing hydrogen electrodes and silver–silver chloride electrodes. The pK2 has a value of 7.18 ± 0.001 at 25°C and 7.044 ± 0.002 at 37°C. The thermodynamic quantities ΔG°, ΔH°, ΔS°, and ΔC p o have been derived from the temperature coefficients of the pK 2. This buffer at ionic strength I = 0.16 mol-kg−1 close to that of blood serum, has been recommended as a useful secondary pH standard for measurements of physiological fluids. Five buffer solutions with the following compositions were prepared: (a) equimolal mixture of MOPS (0.05 mol-kg−1) + NaMOPS, (0.05 mol-kg−1); (b( MOPS (0.05 mol-kg−1) + NaMOPS (0.05 mol-kg−1) + NaCl (0.05 mol-kg−1); (c) MOPS (0.05 mol-kg−1) + NaMOPS (0.05 mol-kg−1); + NaCl (0.11mol-kg−1); (d) MOPS (0.08 mol-kg−1) + NaMOPS (0.08 mol-kg−1); and (e)MOPS (0.08 mol-kg−1) + NaMOPS (0.08 mol-kg−1) + NaCl (0.08 mol-kg−1).The pH values obtained by using the pH meter + glass electrode assembly are compared with those measured from a flow–junction calomel cell saturated with KCl (cell B), as well as those obtained from cell (A) without liquid junction at 25 and 37°C. The conventional values of the liquid junction potentials E j have been obtained at 25 and 37°C for the physiological phosphate reference solution as well as for the MOPS buffers (d) and (e) mentioned above.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022692629289
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  • 6
    Electronic Resource
    Electronic Resource
    77Se and125Te nuclear magnetic resonance investigations in II–VI and IV–VI compounds (1978)
    Springer
    The European physical journal 289 (1978), S. 17-20 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The NMR signals of77Se or125Te have been measured in II–VI and IV–VI-compounds ZnSe, CdSe, HgSe, PbSe and ZnTe, CdTe, HgTe, PbTe relative to aqueous solutions of Na2SeO3 or K2TeO3. The chemical shifts of about −600 ppm for77Se and of about −2700 ppm for125Te have been compared with theoretical calculations. For77Se in hexagonal CdSe an anisotropic chemical shift has been observed and for125Te in CdTe and PbTe linesplittings have been found. The linewidths of the77Se and125Te NMR signals increase with the atomic number of the counterions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01408490
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  • 7
    Electronic Resource
    Electronic Resource
    Soliton contribution to correlations in a system of coupled chains (1980)
    Springer
    The European physical journal 40 (1980), S. 249-256 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A model representing a two- or a three-dimensional array of classical harmonic chains withnonlinear coupling between them is investigated. Physically real systems to which this model applies are discussed. The model exhibits soliton-like nonlinear modes. The influence of these nonlinear modes on the static and the dynamic correlation functions is calculated by generalizing techniques developed for strictly one-dimensional systems. In the static correlation functions these modes lead to minor quantitative changes only. In certain dynamic correlation functions, however, a central peak is found to occur due to the nonlinear modes. The total weight and the width of this peak are calculated for a real spin system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294535
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  • 8
    Electronic Resource
    Electronic Resource
    Results from DASP one + e − annihilation between 3.1 and 5.2 GeV (1979)
    Springer
    The European physical journal 1 (1979), S. 233-256 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract This paper summarizes the measurements one + e − annihilation performed by the DASP Collaboration in the energy range between 3.1 and 5.2 GeV. The following topics are covered: total cross section, production and two body decays of the narrow resonances, radiative decays of theJ/ψ and ψ′ resonances and evidence for theX(2.82), ψ′ cascade decays, inclusive η production and evidence for theF meson, semileptonic decays of charmed mesons and properties of the heavy lepton.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01440224
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  • 9
    Electronic Resource
    Electronic Resource
    Comparison of impedance cardiography and echocardiography for measurement of stroke volume (1982)
    Springer
    European journal of clinical pharmacology 23 (1982), S. 475-477 
    Details
    ISSN: 1432-1041
    Keywords: stroke volume measurement ; impedance cardiography ; amezinium ; echocardiography ; comparative measurement ; tilting
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The relationship between stroke volume (SV) measured simultaneously by impedance cardiography (SV1) and echocardiography (SVE) has been analyzed. Change in stroke volume in 6 healthy volunteers was induced by passive head-up tilting (80°) and by oral administration of the sympathomimetic drug amezinium. A correlation ofr=0.83 (p j 0.01) was found between SVI and SVE calculated by the equation: SVE=16.0+(0.528×SVI). Though stroke volume is overestimated by impedance cardiography, the method may be useful for the clinical pharmacologist interested in a simple non-invasive tool to estimate stroke volume and change in it.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00637491
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  • 10
    Electronic Resource
    Electronic Resource
    Verzeichnis der Sammlung von Algenkulturen am Pflanzenphysiologischen Institut der Universität Göttingen (1964)
    Springer
    Archives of microbiology 47 (1964), S. 402-432 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00406362
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