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  • 1970-1974  (8)
  • 1900-1904  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 232 (1970), S. 11-31 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Nagaoka Green's functions equations for a superconductor are solved exactly and the question of bound states within the gap is answered unambiguously. It is shown that there are always two bound states symmetrically located with respect to the center of the gap. For ferromagnetic coupling,γ〉0, and for antiferromagnetic coupling, butT K ≫T c0 orT K ≪T c0, these bound states are very close to the gap edges. ForT K ∼T c 0, however, the bound states move towards the center of the gap. It is pointed out that in the latter case important deviations from the Abrikosov-Gorkov theory, i.e. manifestations of the Kondo effect, should occur which could be tested experimentally by investigating the density of states.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 256 (1972), S. 366-379 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The jump of the specific heat at the transition temperature is calculated for a superconductor with magnetic impurities. The calculation includes the Kondo effect and is exact within the Nagaoka-approximation.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 234 (1970), S. 58-69 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The depression of the superconducting transition temperature due to the pair breaking effect of magnetic impurities is calculated exactly within the Nagaoka-Suhl approach to the Kondo problem in superconductors.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 30 (1974), S. 1387-1388 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Der ACh-Gehalt verschiedener höherer Pflanzen wurde mit einer gaschromatographischen Methode bestimmt. Die Identifizierung des in den Pflanzen vorkommenden ACh erfolgte durch hochspannungselektrophoretische Auftrennung des pflanzlichen Extraktes und nachfolgender Gas-Chromatographie. Der Spross enthält mehr ACh als die Wurzel. In etiolierten Pflanzen war kein ACh nachweisbar. Es wird vermutet, dass der endogene ACh-Gehalt durch Licht reguliert wird.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Psychopharmacology 22 (1971), S. 216-216 
    ISSN: 1432-2072
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 48 (1970), S. 1010-1012 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The activities of the serum transaminases were measured comparatively with and without the addition of pyridoxal-5′-phosphate in 40 healthy people and 61 patients. The measurements were made using the spectrophotometric test and with substrate saturation of the enzymes. Addition of 200 nM pyridoxal-5′-phosphate to the test medium effected an average increase in activity of 12% in GOT and of 10% in GPT. Occasionally, in liver and heart diseases increases in enzyme activity between 60 and 250% occurred which could possibly reflect a relative or absolute lack of vitamin B6 in these patients.
    Notes: Zusammenfassung Bei 40 Gesunden und 61 Patienten wurden die Aktivitäten der Serumtransaminasen vergleichend ohne und mit Zusatz von Pyriodoxal-5′-phosphat gemessen. Die Messungen erfolgten im UV-Test und bei Substratsättigung der Enzyme. Zusatz von 200 nM Pyridoxal-5′-phosphat zum Testansatz bewirkte einen durchschnittlichen Aktivitätszuwachs von 12% bei der GOT und von 10% bei der GPT. Bei Leber- und Herzkrankheiten traten zum Teil auch Aktivitätssteigerungen zwischen 60 und 250% auf, die möglicherweise Ausdruck eines relativen oder absoluten Vitamin B6-Mangels bei den Patienten sein können.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In 3,979 men and women working in various occupations who on the basis of clinical examination were considered healthy, activities of serum transaminases (GOT, GPT) were measured in the UV-test. New combinations of reagents offering optimal substrate concentrations were utilised for the determinations, since the test-kits obtainable on the market do not provide adequate concentrations of the required substrates. Statistical estimation of normal ranges yielded the following results: 1. The form of distribution of both transaminases can be best described by lognormal distribution; for this reason the normal range cannot be calculated on the basis of arithmetic mean values and standard deviations. 2. Transaminase values are significantly higher in men than in women; furthermore, in the substrate optimum GPT values are always conspicously higher than GOT values in both sexes. No evidence could be supplied for a possible influence of the menstrual cycle or the duration of menopause on measured values. 3. In both sexes GOT- and GPT activities depend significantly on age, body weight and stature. 4. Since the upper normal limits are of major interest from the clinical point of view, the upper tolerance limits were defined and determined for both sexes taking into consideration the influence of age and body weight. 5. On the basis of the results obtained with transaminases, the definition of normality in general and the difficulty of obtaining and utilizing clinical-chemical normal values are discussed.
    Notes: Zusammenfassung Bei 3979 Werktätigen beiderlei Geschlechts und verschiedener Berufe, die auf Grund einer klinischen Untersuchung als gesund anzusehen waren, wurden die Aktivitäten der Serumtransaminasen (GOT, GPT) im UV-Test gemessen. Für die Messungen wurden neue, substrat-optimierte Reagentienzusammenstellungen verwendet, da in den handelsüblichen Test-Kits die notwendigen Substrate in zu geringen Konzentrationen vorliegen. Bei der statistischen Berechnung der Normalbereiche wurden folgende Ergebnisse erhalten: 1. Die Verteilungsform beider Transaminasen kann am besten durch eine Log-Normalverteilung beschrieben werden; der Normalbereich kann deshalb nicht auf der Basis arithmetischer Mittelwerte und Standardabweichungen errechnet werden. 2. Männer haben signifikant höhere Transaminasewerte als Frauen; im Substratoptimum liegen außerdem die GPT-Werte bei beiden Geschlechtern stets eindeutig über denen der GOT. Die Beeinflussung der Meßwerte durch Menstruationscyclus oder Klimakteriumsdauer ließ sich nicht sichern. 3. Bei beiden Geschlechtern besteht eine signifikante Abhängigkeit der GOT- und GPT-Aktivitäten vom Alter, vom Körpergewicht und von der Körpergröße. 4. Da für klinische Belange hauptsächlich die oberen Normalgrenzen von Interesse sind, wurden für beide Geschlechter unter Einbeziehung der Alters- und Gewichtsfunktionen obere Toleranzgrenzen definiert und errechnet. 5. Anhand der Ergebnisse werden der Normalitätsbegriff im allgemeinen und die Problematik der Aufstellung und des Gebrauchs klinisch-chemischer Normalwerte am Beispiel der Transaminasen diskutiert.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Primates 15 (1974), S. 179-192 
    ISSN: 0032-8332
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Invariant quantities provide the basis for recognizing generally valid rules for intraspecific communication among our squirrel monkeys. Such quantities, along with some variable quantities, have been found. These invariant quantities, independent of individual characteristics of the animals or the animal groups, give rise to the following rules: (1) The behavior units (u), set up according to a physical description of movements and postures involved, are not directed from each animal towards every partner in arbitrary frequency. Rather, each behavior unit is characterized through being distributed in definite frequency relations among the partners. (2) Not only “what” is done is significant, but also “who” does it and towards “whom” it is done. (3) “Who” is determined by the hierarchical rank of “who.” (4) The hierarchical rank of animals correlates with the variability with which the animals use the given behavior units. (After the stimulation artifact has subsided, the variability is greater in the higher ranking animal.) (5) Behavior units resembling each other with respect to the frequency relations mentioned in rule 1 have similar functions in the communication processes (i.e. they transmit similar messages). (6) Behavior units definitely differing from each other with respect to these frequency relations have different functions in the communication processes.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 16 (1903), S. 861-869 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 16 (1903), S. 915-919 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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