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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Immunogenetics 50 (1999), S. 363-365 
    ISSN: 1432-1211
    Keywords: Key words IKKα ; Polymorphism ; Okasitis ; Rheumatoid arthritis ; Systemic lupus erythematosus ; Crohn's disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 302 (1980), S. 281-285 
    ISSN: 1618-2650
    Keywords: Charakterisierung von Ölverschmutzungen ; Chromatographie, Gelpermeation/Fluorimetrie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary Fluorescence emission spectra of oil fractions separated by high-speed gel-permeation chromatography (GPC) were measured to characterize the oils spilled into the environment. Crude oils, weathered crude oils, and tar balls were analysed. In GPC, polystyrene gel and tetrahydrofuran were used as a stationary phase and a mobile phase, respectively; the eluate was separated into five equi-volume fractions. Fluorescence emission spectra of the fractions were obtained at an excitation wavelength of 340 nm. Maximum emission wavelength, relative emission intensity at 386 nm, and emission intensity ratio (440 nm/386 nm) on the spectra of fractions were studied as identification parameters. The change of the identification parameters with weathering the crude oil (Murban) was small. The proposed method was applied to the characterization of tar balls sampled in the sea near Japan.
    Notes: Zusammenfassung Rohöle, verwitterte Rohöle sowie Teerballen wurden untersucht. Bei der Chromatographie wurde Polystyrolgel als stationäre und Tetrahydrofuran als mobile Phase verwendet. Das Eluat wurde in fünf Fraktionen gleichen Volumens getrennt. Für die Fluorescenzmessung wurde eine Anregungswellenlänge von 340 nm benutzt. Als Identifizierungsparameter dienten die maximale Emissionswellenlänge, die relative Emissionsintensität bei 386 nm sowie das Verhältnis der Emissionsintensitäten bei 440/386 nm. Die Veränderung der Parameter bei der Verwitterung (Murban-Öl) war nur gering. Die Methode wurde zur Charakterisierung von Teerballen angewendet, die aus dem Meer in der Nähe Japans entnommen worden waren.
    Type of Medium: Electronic Resource
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  • 3
    Publication Date: 2019-06-28
    Description: Energetic delayed hadrons in air showers with electron sizes in the range 10 to the 6th power to 10 to the 9th power were studied by observing the delayed bursts produced in the shield of nine square meter scintillation detectors in the Chacaltaya air-shower array. The frequency of such delayed burst is presented as a function of electron size, core distance and sec theta.
    Keywords: SPACE RADIATION
    Type: HE-6.2-9 , 19th Intern. Cosmic Ray Conf - Vol. 8; p 283-286; NASA-CP-2376-VOL-8
    Format: application/pdf
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  • 4
    Publication Date: 2019-06-28
    Description: Arrival directions of air showers with primary energies in the range 10 to the 16.5 power eV to 10 to the 18th power eV show the first harmonic in right ascension (RA) with amplitude of 2.7 + or - 1.0% and phase of 13-16h. However, the second harmonic in RA slightly seen for showers in the range 10 to the 18th power eV to 10 to the 19th power eV disappeared by accumulation of observed showers. The distribution of arrival directions of low-mu air showers with primary energies around 10 to the 15th power eV observed at Chacaltaya from 1962 to 1967 is referred to, relating to the above-mentioned first harmonic. Also presented in this paper are arrival directions of old-age low-mu air showers observed at Chacaltaya from 1962 to 1967, for recent interest in gamma-ray air showers.
    Keywords: SPACE RADIATION
    Type: OG-5.3-2 , 19th Intern. Cosmic Ray Conf - Vol. 2; p 238-241; NASA-CP-2376-VOL-2
    Format: application/pdf
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