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  • 1
    Electronic Resource
    Electronic Resource
    Report on a very young dizygotic human twin pregnancy (1981)
    Springer
    Archives of gynecology and obstetrics 231 (1981), S. 51-56 
    Details
    ISSN: 1432-0711
    Keywords: Dizygotic twinning ; Implantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two ova implanted in one uterus were found at the autopsy of a 28-year-old woman. The ovulation age of both implantations has been estimated to be 10–12 days. The presence of two equally large corpora lutea, one in each ovary, indicates that the implanted ova originated from different ovaries. Thus, an “ovulatio biovarialis” seems to be the basis for the dizygotic twinning in this case. The case is believed to be the only documented example of a very early dizygotic, fraternal pregnancy in humans.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02110023
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  • 2
    Electronic Resource
    Electronic Resource
    Erweiterung der Teilleitermethode auf Anordnungen mit magnetischen Gebieten (1983)
    Springer
    Electrical engineering 66 (1983), S. 29-36 
    Details
    ISSN: 1432-0487
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Description / Table of Contents: Contents The method of current splitting can be extended for arrangements with diversified permeable spaces. Accordingly, model equations are put foreward, which transfer the original to a model of constant permeability. Discontinuities of magnetic field strength, occuring in this model, yield to distributed currents in the boundary surface. The method of current splitting extended in this way, is applied to the current calculations of a metal-clad conductor and compared with the analytical approximation.
    Notes: Übersicht Die Teilleitermethode ist auf Anordnungen mit unterschiedlich permeablen Gebieten erweiterbar. Hierzu werden Ähnlichkeitsbezichungen angegeben, die das Original in ein Modell konstanter Permeabilität überführen. Die in diesem Modell auftretenden Sprünge der magnetischen Feldstärke ergeben Strombeläge in den Grenzflächen der Gebiete. Die derart erweiterte Teilleitermethode wird auf die Berechnung des Stromes im Mantel eines Rohrleiters angewandt und mit der analytischen Näherungslösung verglichen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01575973
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  • 3
    Electronic Resource
    Electronic Resource
    Ultrasound, computed tomography and endoscopic retrograde cholangiopancreatography in the morphologic diagnosis of pancreatic disease (1983)
    Springer
    Journal of molecular medicine 61 (1983), S. 291-296 
    Details
    ISSN: 1432-1440
    Keywords: Ultrasound ; Computed tomography ; Endoscopic retrograde cholangiopancreatography ; Chronic pancreatitis ; Pancreatic tumor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary From February to November 1981 the diagnostic relevance of ultrasound (US), computed tomography (CT) and endoscopic retrograde cholangiopancreatography (ERCP) was compared prospectively in 75 patients with suspected pancreatic disease. Final diagnosis was confirmed by autopsy, surgery, clinical course, and further laboratory data. Thus it was possible to exclude pancreatic disorders in 32 patients. By ERCP we diagnosed all tumors; sensitivity was 100%. Sensitivity of US and CT were 63% each. In five cases US made the false positive diagnosis” pancreatic malignant tumor” (specifity 93%), CT and ERCP in two cases (specifity 97% each). In chronic pancreatitis specifity of US and ERCP were 100% and specifity of CT was 98%. Sensitivity of ERCP amounted to 93%, CT and US revealed 74% and 52%, respectively. We conclude that ERCP is the best morphologic diagnostic tool in differentiating chronic pancreatitis from pancreatic carcinoma. US is a good screening method and CT reveals good diagnostic results in acute pancreatitis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01497778
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  • 4
    Electronic Resource
    Electronic Resource
    Über eine independente Darstellung der Singularitätenanzahlen einer ebenen algebraischen Kurve (1932)
    Springer
    Mathematische Zeitschrift 35 (1932), S. 746-759 
    Details
    ISSN: 1432-1823
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01186586
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  • 5
    Electronic Resource
    Electronic Resource
    Das Verhalten der auf grünen Pflanzen vorkommenden Coli- und coliähnlichen Bakterien gegenüber Säuren (1934)
    Springer
    Archives of microbiology 5 (1934), S. 477-501 
    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/BF00409185
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  • 6
    Electronic Resource
    Electronic Resource
    Die auf grünen Pflanzen vorkommenden Coli-und coliähnlichen Bakterien und ihre Eigenschaften unter verschiedenen Züchtungsbedingungen. (1934)
    Springer
    Archives of microbiology 5 (1934), S. 366-386 
    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/BF00409178
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  • 7
    Electronic Resource
    Electronic Resource
    Human ballistic finger flexion: Uncoupling of the three-burst pattern (1984)
    Springer
    Experimental brain research 55 (1984), S. 127-133 
    Details
    ISSN: 1432-1106
    Keywords: Ballistic movement ; Three-burst pattern
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In isotonic and isometric goal-directed index finger movements made as fast as possible, the “braking hypothesis” ascribed to the antagonist burst was tested. Under isotonic conditions, the extensor burst often failed to occur in small angle movements with low inertial load. It regularly occurred, however, in small angle movements with high inertial load and in wide angle movements with both low and high inertial loads. Such features suggest, indeed, the antagonist burst as being part of braking strategies. Under isometric conditions, the antagonist burst — if it occurred — exhibited characteristics which suggested a rapidly alternating movement rather than a braking strategy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00240506
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  • 8
    Electronic Resource
    Electronic Resource
    Dihydrotentoxin: a cyclic tetrapeptide (1981)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 37 (1981), S. 1139-1141 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740881005293
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  • 9
    Electronic Resource
    Electronic Resource
    Plant indicators of wheat and soybean crop water stress (1981)
    Springer
    Irrigation science 2 (1981), S. 167-176 
    Details
    ISSN: 1432-1319
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The onset of water stress within a crop is defined as the time at which the rate of water loss declines below that of a well watered crop in the same locality. The relation to the onset of water stress and soil water status of several readily measured plant parameters was investigated in crops of wheat and soybeans over three years. Evapotranspiration ET was monitored with weighing lysimeters. A noticeable decline in the rate of ET for both wheat and soybeans was detected once 20% to 30% of the total plant available water PAW remained in the 1 m deep lysimeter soil profile. Extension growth of wheat declined when PAW was 33% and 34% in two years of measurement. In soybeans, the decline in the rate of leaf extension coincided with the decline in the rate of ET. Midmorning measurement of exposed leaf water potential ψL, covered leaf water potential ψCL and covered plant leaf water potential ψCP yielded similar results for both wheat and soybeans. Day-to-day variability was least in ψCP and most in ψL. Values of ψCP, ψL and ψCL decreased rapidly with PAW 〈 30%. Daily values of leaf diffusive conductance were variable but there was a general decline in conductance with PAW 〈 30%. It is suggested that ψCL may be the easiest and most reliable parameter to monitor as a means of detecting the onset of stress. The results indicated that PAW levels in the root zone of 50% for wheat and 30% for soybean probably do not affect extension growth or plant water status parameters and can thus be used as criteria for irrigation scheduling.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00257978
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  • 10
    Electronic Resource
    Electronic Resource
    Allgemeines (1931)
    Springer
    Journal of cancer research and clinical oncology 34 (1931), S. 81-84 
    Details
    ISSN: 1432-1335
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01618265
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