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  • 1970-1974  (10)
  • 1973  (6)
  • 1971  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Gas Chromatographic Determination of Thermodynamic Properties of Polymer Solutions. II. Semicrystalline Polymer Systems (1973)
    s.l. : American Chemical Society
    Macromolecules 6 (1973), S. 176-180 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma60032a005
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Thymidine uptake and cell migration in cheek epithelium of zinc-deficient rats (1973)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 2 (1973), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract. Male weanling rats were fed a diet containing 1.3 mg zinc/kg diet and controls the same diet supplemented by 40 mg /zinc/kg diet. The rates of cell division and upward migration in the cheek epithelium were obtained from counts of labelled cells in animals sacrificed one hour and three days following intraperitoneal injection of 1 μCi tritiated thymidine/g body weight. A 3.4-fold increase over the number of labelled cells in controls was observed one hour after thymidine administration and a 2.7-fold increase three days later. Ratios of labelled cells at three days and one hour were 4.96 in controls and 3.99 in experimental animals. The percentage distribution of labelled cells in successive subdivisions of epithelium was identical in both groups. The number of labelled cells near the junction of granular and keratin layers was 2.9-fold greater in the experimental animals.It is suggested that the zinc-deficient cheek epithelium of the rat might be a useful model for the study of pathological conditions associated with increased rates of cell proliferation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1973.tb01844.x
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  • 3
    Electronic Resource
    Electronic Resource
    Spannungsstufen in denU (T)-Übergangskurven undU (I)-Kennlinien stromtragender Zinn-Whisker (1973)
    Springer
    Applied physics 2 (1973), S. 303-320 
    Details
    ISSN: 1432-0630
    Keywords: Superconductivity ; Non-equilibrium transport properties ; Current induced transition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The current induced phase transition from the superconducting to the normalconducting state is studied in whiskers of tin. Transition curves were taken byU(T)-measurements at steady currents as well as characteristic curves byU (I)-measurements at fixed temperatures. For larger current intensities these curves show voltage steps which increase linearly with current intensity. The onset of voltage reading appears at the critical current density, as predicted by theory. The step structures are, however, observed at current densities which are several times larger than the critical ones. The influence of a magnetic field on the location and the structure of the curves was measured and is compared to theoretical predictions. At temperatures close toT co whiskers are onedimensional with respect to the superconducting orderparameter because of their small diameters. Therefore, intermediate state pattern and flux flow are rejected as an explanation of the observed structures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00896936
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  • 4
    Electronic Resource
    Electronic Resource
    Influence of nitroglycerin on the size of experimental myocardial infarction (1973)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 277 (1973), S. 387-400 
    Details
    ISSN: 1432-1912
    Keywords: Myocardial Infarction ; Coronary Blood Flow ; Epicardial Mapping ; Nitroglycerin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect of nitroglycerin (N.G.) on the size of myocardial infarction was studied in 12 open-chest dogs with chloralose-urethane anesthesia by means of epicardial ECG-mapping and compared with the influence of simple ligature of the same coronary artery branch. In order to identify the specific effect of N.G. on the heart and the coronary circulation without contribution of the peripheral circulation in 6 dogs aortic pressure was stabilized by a clamp placed around the descending aorta and heart rate was kept constant by atrial pacing. Nitroglycerin (0.5 mg/kg i.v.) infused during the occlusion period of 20 min resulted in a decrease of mean arterial pressure for 27 mm Hg (p〈0.005) and left ventricular enddiastolic pressure for 2 mm Hg (p〈0.05) indicating a diminishment in oxygen demand. Mean coronary blood flow was reduced to a similar extent (18%) as in the control infarction (22%). Compared to simple occlusion no significant alteration in the extent of ST-elevation in the epicardial electrogram was observed during N.G.-infusion even in the presence of hypotension. In the stabilized group with constant afterload (mean arterial pressure) and heart rate nitroglycerin induced a slight, but not significant decrease of the enddiastolic left ventricular pressure compared to the control group. However, coronary blood flow and ST-elevation were unaffected. Thus, neither in the unstabilized nor in the stabilized group the extent of myocardial injury after ligature of a coronary artery branch were influenced by nitroglycerin. Obviously the improvement in the oxygen demand during nitroglycerin is out balanced by the reduction in oxygen supply so that in effect myocardial infarction size is not altered by N.G. as estimated from epicardial ECG.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00500998
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  • 5
    Electronic Resource
    Electronic Resource
    Microscopic description of static quadrupole moments of 2 1 + states by time-dependent HF equations (1971)
    Springer
    The European physical journal 242 (1971), S. 332-341 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Large quadrupole moments of 1-phonon states of sperical nuclei are shown to follow in a simple and direct way from time-dependent HF equations using the self-consistent perturbation expansion. Whereas the first order describes harmonic quadrupole oscillations, anharmonic terms arise in second order. The scattering of quasiparticles by quasi-particle pairs, which is neglected in RPA calculations, but included in this paper, leads to a second order response of the system and is shown to produce a strong enhancement of the quadrupole moments. Explicit results are obtained with a pairing-plus-quadrupole interaction and discussed within a schematic two level model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01396983
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  • 6
    Electronic Resource
    Electronic Resource
    Systemic fungitoxic action of benomyl against Fusarium oxysporum f. sp. melonis in vivo (1971)
    Springer
    European journal of plant pathology 77 (1971), S. 1-5 
    Details
    ISSN: 1573-8469
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Samenvatting Met behulp van een mixertechniek wordt aangetoond, dat na een begieting van de wortels van jonge meloenen met benomyl (75 mg actieve stof/pot van 450 ml) de infektie doorFusarium oxysporum f. sp.melonis in kunstmatig besmette aarde heel laag blijft. In geïnfekteerde planten veroorzaakt deze behandeling een sterke vermindering van de hoeveelheidFusarium in de stengel. Wanneer de planten behandeld worden juist voor zij de eerste symptomen aantonen, wordt gewoonlijk de ontwikkeling van de parasiet gestopt zodat de planten kunnen genezen. Het produkt blijft tenminste 10 weken actief in de grond.
    Notes: Abstract It is demonstrated that benomyl, applied as a soil drench, is highly efficient in reducing the quantity of mycelium in muskmelon plants infected byFusarium oxysporum f. sp.melonis. When treated before symptoms appear, plants are generally cured. The blending technique used for assessing fungal spread in the xylem vessels is particularly convenient for studying the action of a systemic fungicide in a plant with vascular wilt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01976392
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  • 7
    Electronic Resource
    Electronic Resource
    Abundant production of chlamydospores by Fusarium oxysporum f. sp. melonis in soil extract with glucose (1973)
    Springer
    European journal of plant pathology 79 (1973), S. 162-164 
    Details
    ISSN: 1573-8469
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Samenvatting In grondextract waaraan een kleine hoeveelheid glucose werd toegevoegd, vormtFusarium oxysporum f. sp.melonis overvloedig chlamydosporen. Gedurende een incubatieperiode van 30 dagen neemt het aantal chlamydosporen toe met stijgende glucoseconcentratie (10–1000 ppm). 98% van de gevormde chlamydosporen kiemde na 7 uren incubatie in vers medium of in steriele grond.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01976712
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  • 8
    Electronic Resource
    Electronic Resource
    A simple model of the central mechanism of the optokinetic nystagmus of the rabbit (1971)
    Springer
    Documenta ophthalmologica 30 (1971), S. 237-243 
    Details
    ISSN: 1573-2622
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00142522
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  • 9
    Electronic Resource
    Electronic Resource
    Glass transition temperature as a guide to selection of polymers suitable for PTC materials (1973)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 13 (1973), S. 462-468 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: It has been shown that the only way to predict the size of the PTC effect displayed by a crystalline polymer when filled with conductive particles is through the knowledge of the glass transition point of the polymer. The size of the PTC anomaly is found to decrease sharply with rise in glass transition temperature and for a polymer to be a useful PTC material its glass transition must be below 0°C. It has not been possible to explain this relationship by any of the current theories of the PTC mechanism in filled polymers.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760130611
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  • 10
    Electronic Resource
    Electronic Resource
    Anlage und Unterhaltung von Windschutzpflanzungen (1971)
    Springer
    Journal of pest science 44 (1971), S. 176-176 
    Details
    ISSN: 1612-4766
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02026756
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