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  • 1975-1979  (8)
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical prospecting 24 (1976), S. 0 
    ISSN: 1365-2478
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Physics
    Notes: Mini-sosie consists in using a vibration-rammer as seismic source and changing the striking rate by varying the engine speed, resulting in a random impulse transmission. The recording instruments are made up of two seismic traces, two constant gain amplifiers and a two-channel sosie processor which performs the decoding in real time by using the actual transmission times supplied by a captor located on top of the vibration-rammer's plate. An idea of the possible penetration is given by the recording of a velocity survey. Other results obtained in seismic reflection and refraction are given.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 33 (1977), S. 1407-1410 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary On the basis of NMR studies, mass spectrometry, chemical reactions and correlations with phorcabilin1, the structure2 is proposed for sarpedobilin, a butterfly blue bile pigment first isolated fromPapilio graphium sarpedon. This structure represents a new natural heterocyclic system.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary 2 C18 isoprenoid ketones, hexahydrofarnesylacetone (1) and farnesylacetone (2) have been identified for the first time in lipid extracts from the androgenic glands of the male crab Carcinus maenas, using coupled gas chromatography-mass spectrometry. The 2 compounds prepared by synthesis, are biologically active, inhibiting the incorporation of3H-leucine in Crustaceans ovaries subcultures.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Archives of orthopaedic and trauma surgery 88 (1977), S. 75-85 
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Vorfußkorrektur gewinnt als Routineeingriff beim Polyarthritiker, aber auch nach mißlungenen Mehrfacheingriffen an den Zehen bei Hallux valgus oder Hammerzehen, an Bedeutung. Weit davon entfernt eine einfache Operation zu sein, erheischt die Vorfußkorrektur genaue Kenntnisse der Physiopathologie des Fußes. Eine besondere Beachtung verdienen die Zehenformeln und Metatarsalindices. Aufgrund einer Analyse von 200 Vorfußkorrekturen werden Vor- und Nachteile der verschiedenen Methoden diskutiert. Die Häufigkeit des Vorkommens der verschiedenen Zehen- und Metatarsalindices wird für den deutschsprachigen Sprachraum erstmals als Ergebnis einer Untersuchung con 500 Vorfüßen tabellarisch zusammengestellt.
    Notes: Summary The forefoot reconstruction as a routine treatment, is increasing in significance, not only in treating polyarthritic patients, but also after numerous surgical failures in treating halux valgus or hammer toes. Far from being a simple operation, the reconstruction requires an exact knowledge of the physiopathology of the foot. Special attention should be given to the digital and metatarsal formula. Based on an analysis of 200 forefoot reconstructions, the advantages and the disadvantages of the various methods are discussed. For the first time in the German speaking countries, the frequency of occurrences of the different digital and metatarsal formulas has been compiled in tables from an examination of 500 forefeet.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 32 (1976), S. 1100-1102 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The first results of a photophysical study on pterobilin (biliverdin IX γ, a Lepidopter blue bile pigment) are presented. From the absorption and fluorescence spectra, it is deduced that the low yield of fluorescence indicates a desactivation of the excited singlet state occurring mainly by a non-radiative process. Analyses of the chemical compounds formed after irradiation of pterobilin in methanol show that it is rearranged into a series of new blue pigments among which phorcabilin and sarpedobilin (the two neobiliverdins IX γ isolated from Lepidopters) have been identified.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 35 (1979), S. 1541-1543 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Modern analytical methods have revealed the great variety of marine sterols, which possess many different side chains and unsaturation patterns. Such biochemical transformations require well-defined mechanistic pathways, and there must be some ‘Raison d'Etre’ for a situation which has withstood evolution and adaptive changes. However, in this area, insufficient and sometimes not very substantial experimental work has made it difficult to see correlations, and hence to form a solid hypothesis. A review is now presented in which the molecules dissolved in sea water, or found in marine organisms are considered with particular reference to algal production, and to the bio-ecological significance of the main sterols.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Astrophysics and space science 32 (1975), S. 423-430 
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present a new list of 156 M, C or emission line stars discovered on objective-prism plates taken at Haute Provence Observatory. The good spectra are classified by means of criteria used in previous publications, principally from the ratio of TiO bands.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of applied electrochemistry 6 (1976), S. 507-514 
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Voltammetric and chronopotentiometric methods were used to study the electrochemical behaviour of copper in the NaF-AlF3-BaCl2 ternary melt at 750° C. Copper, graphite and platinum were used as electrode materials. It was shown that the electrochemical reduction of copper ions is a single step process, with the reversible exchange of one electron at a copper electrode. The value of the diffusion coefficient of the cuprous ion, determined by means of chronopotentiometry, isD =(2.8±0.3)× 10−5 cm2 s−1.
    Type of Medium: Electronic Resource
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