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  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 3750-3752 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Double layers of (100)-oriented Fe with an individual thickness of ≈100 A(ring), separated by interlayers of Cr or Au with variable thickness were grown epitaxially on Au (100) surfaces. The spin-wave mode spectra of these double layers as detected by means of light scattering were used to measure the effective exchange coupling of the Fe films across the interlayer. For Au interlayers it decreases monotonically with increasing Au thickness dAu and disappears at dAu(approximately-greater-than)20 A(ring). For Cr interlayers of proper thickness dCr, i.e., 4 A(ring)(approximately-less-than)dCr(approximately-less-than)9 A(ring) we obtain antiferromagnetic coupling of the Fe layers. In small external fields such double layers order antiparallel with their magnetization perpendicular to the external field in analogy to the spin-flop phase of antiferromagnets. This is revealed by the behavior of the static magnetization of such samples as a function of external field and the spectrum of spin-wave modes with the wave vector parallel to a small external field.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 3473-3475 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Thin films of Fe when separated by approximately 8 A(ring) of Cr couple antiferromagnetically. Evidence for this comes from spin-wave-mode spectra as measured by means of light scattering and hysteresis curves, here obtained by means of the magneto-optic Kerr effect. Based on new and more-detailed data we would like to discuss the behavior of a particular spin-wave mode due to the spin canting induced by the antiferromagnetic coupling. It is related to a Goldstone mode. The experiments also show that antiferromagnetic coupling occurs not only for films grown along [100] but also for films grown along [110]. We discuss the implications of this observation.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The alarm substance cells and mucous cells of various species of Ostariophysi do not react uniformly to treatment with androgen and other steroid hormones. This indicates that the mechanism controlling formation of alarm substance is not uniform in the Ostariophysi and three exist at least two such mechanisms, one of which is operated by androgens and perhaps other steroid hormones of the gonads. Steroid hormones from the adrenal cortex proved ineffective. In the European minnow, anti-androgen (androcur®, cyproteroneacetate) had an efrect opposite to that of androgen, while androgen treatment upon this species led to an increase in the size of mucous cells and a reduction in the alarm substance cells. The epidermis of androgen-treated European minnows contained neither alarm substance cells nor alarm substance, and skin extracts of such fish proved ineffective in behaviour experiments upon fish schools. The effect of further hormone treatments are discussed and the reactions of the European minnow are compared to those of other species.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Regional Science and Urban Economics 24 (1994), S. 707-722 
    ISSN: 0166-0462
    Keywords: Migration ; Regional growth ; Regional specialization ; [JEL classification codes] O41 ; [JEL classification codes] R11 ; [JEL classification codes] R23
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Architecture, Civil Engineering, Surveying , Geography , Sociology , Economics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Vacuum 41 (1990), S. 1241-1243 
    ISSN: 0042-207X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 0168-9002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    International archives of occupational and environmental health 20 (1963), S. 41-48 
    ISSN: 1432-1246
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Es wird über folgenden Vergiftungsfall berichtet: Ein 63 Jahre alter Mann verstarb 14 Std nach der peroralen Aufnahme von 1–2 Schluck einer Reinigungsflüssigkeit, die 1,2-Dichloräthan and 2,2′-Dichlordiäthyläther im Verhältnis 1:1 enthielt, am Kreislaufversagen. Bei der Obduktion wurden besonders Schleimhautläsionen am oberen Verdauungstrakt sowie ausgedehnte Blutungen in der Adventitia der Aorta festgestellt.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    European biophysics journal 1 (1975), S. 329-332 
    ISSN: 1432-1017
    Keywords: Normal and Transformed Fibroblasts ; Cell-Electrophoresis ; Temperature Transition ; Cholesterol-Content
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Abstract The electric surface charge configuration of 3T3 and SV40-3T3 cells was characterized by determining the product of electrophoretic mobility of the cells times the viscosity of suspension medium. This quantity could be shown to change with temperature and/or treatment with calf serum or trypsin in close correlation with the effects of these agents on characteristics of cell proliferation. The present results, taken together with those of earlier studies on cell-electrophoresis and characterization of lipid constituents of the cells, support the hypothesis of a lateral phase separation in the plasmamembrane as triggering process in stimulation of proliferation of resting normal cells.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 323 (1968), S. 1-17 
    ISSN: 1435-2451
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung An Hand eines Krankengutes von nahezu 3000 Gallenoperationen in den Jahren 1961 bis 1967 werden die Vorteile und die Indikation zur Sphincterotomie zur Sanierung der tiefen Gallenwege und der Papilla Vateri dargelegt. Das bei 455 Sphincterotomien erarbeitete und durchgeführte operations-technische Vorgehen wird beschrieben, die Einwände gegen die Sphincterotomie werden diskutiert. In geübter Hand stellt die Sphincterotomie gegenüber den anderen gebräuchlichen Operationsverfahren kein erhöhtes Risiko dar und bietet Gewähr für einen ungestörten Gallenabfluß ins Duodenum.
    Notes: Summary For the sanitation of the lower biliary tracts and the papilla of Vater, the sphincterotomy, as compared with the usual standardized procedures (choledochotomy with sealed-off T-Drainage, choledochotomy with primary occlusion, choledochoduodenostomy) offers the following advantages: 1. Drainage of the biliary tract system at the deepest point, at the physiological point in the intestinal tract. 2. Surer diagnosis and causative elimination of the organic obstruction in the papillary area. 3. Relief of the pancreatic duct system. 4. Removal of bile duct stones without supplementary choledochotomy. 5. Greater safety factor, since concrements which may be left behind can be discharged spontaneously. 6. Easily surveyed operating as secondary operation for shrunken bilidigestive anastomoses. The indication for sphincterotomy is revealed with the aid of a case study involving nearly 3,000 biliary tract operations between the years of 1961 to 1967. The technical operating procedure developed and employed for 455 sphincterotomies is presented with narrative and illustrations. The objections to the sphincterotomy are discussed and comparisons are made with the results of other case-study reports. In experienced hands the sphincterotomy, compared with the other operating procedures in use, does not represent increased risk-mortality in the present case study: 2.8%—while it does offer the certainty of a lasting, undisturbed bile flow into the duodenum.
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 77 (1989), S. 25-32 
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The magnetization, susceptibilityX and specific heatC of epitaxially grown EuS/SrS multilayers measured at low temperatures is reported.C changes with decreasing thickness of the individual EuS and SrS layers, i.e. decreasing modulation length, from the behavior of nearly pure EuS(CαT 3/2) to a behavior resembling that of spin-glass samples of EuxSr1−xS (approximatelyC α T). For multilayers with increasing thickness ratior =d M/dN (M=EuS,N=SrS),C decreases towards pure EuS, thus showing a transition from spin-glass to ferromagnet. The paramagnetic Curie temperatureΘ obtained fromX is reduced with respect to that of pure EuS for layers with small EuS layer thickness. All these effects can be explained by the formation of EuxSr1−xS intrrmediate diffusion layers of a fewnm thickness during the evaporation process. Reduction of the substrate temperature results in a much smaller diffusion layer.
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