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  • 1
    Electronic Resource
    Electronic Resource
    The adsorption of hydrogen on a ruthenium (101¯0) surface (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 91 (1989), S. 3729-3743 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Video-LEED, HREELS, TDS, and Δcursive-phi measurements were used to investigate the adsorptive, structural, and vibrational properties of the Ru(101¯0)/H system between 100 and 500 K. At all temperatures investigated hydrogen adsorbs dissociatively with very high initial sticking probability (s0(approximate)1.0) with apparent precursor mechanism. The saturation coverage at 100 K is extraordinarily high (aitch-thetamax =2(approximately-equal-to)1.728×1015 H atoms cm−2), up to this coverage four H binding states α, β1, β2, and β3 can be distinguished having desorption energies between 56 KJ/mol (α) and 80 KJ/mol (β3). The H binding states are intimately correlated with the four observable ordered H phases: At aitch-theta=1 a c(8×2) or "1×2'' structure with weak split spots appears which transforms at higher coverages into a clear 1×2 phase with likewise weak spots and with maximum intensity at aitch-theta=1.2. It follows a c(2×2)-3H phase (I maximum at aitch-theta=1.5) with rather more intense ‘extra' spots which fade away with increasing coverage until at aitch-theta=2.0 a (1×1)-2H pattern is reached. The (positive) H-induced work function change Δcursive-phi runs through two maxima and saturates at ∼250 mV. The vibrational loss spectra which were measured in two perpendicular azimuths exhibit a variety of bands which can be correlated with the ordered H phases and point to H species bound in two different kinds of threefold coordinated sites. Our data suggest several structural similarities with the neighboring system in the periodic table, Rh(110)/H, but also interesting differences.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.456856
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  • 2
    Electronic Resource
    Electronic Resource
    THE DETECTION OF BURIED PLACER DEPOSITS BY GROUND MAGNETIC SURVEY (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical prospecting 36 (1988), S. 0 
    Details
    ISSN: 1365-2478
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Physics
    Notes: A method is proposed to detect buried magnetite concentrations within river sediments. Model studies show that relatively small (thickness 1 m, width 10 m) plate-shaped volumes with magnetite contents of 0.5% within a non-magnetic matrix can be detected by a detailed ground magnetic survey using a sensitive (0.1 nT) magnetometer. Tests along lines perpendicular to the river but at a different angle to the bedrock trend (or the aeromagnetic anomaly trend) reveal that essentially all total field and vertical’gradient’anomalies detected in the profiles are elongated in the river and/or valley direction. This shows that the anomaly sources are (buried) volumes of higher magnetite content within the river sediments. Further evidence for this is (1) that higher intensity total field and vertical’gradient’anomalies occur in an area where the river cuts through strongly magnetic serpentinites, (2) the absence of high frequency anomalies over unsorted glacial till, and (3) some features on power spectra. Relatively large volumes of high magnetite concentrations within the river sediments may well contain the highest concentration of heavy economic minerals such as gold. Consequently, the areas of greatest interest in the exploitation of buried placers may be selected from maps obtained by detailed magnetic surveys either on the ground or at low altitude by helicopter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2478.1988.tb02200.x
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  • 3
    Electronic Resource
    Electronic Resource
    Zur Frage der Bindung von Penicillin an Serumeiweisskörper (1955)
    Springer
    Journal of molecular medicine 33 (1955), S. 419-421 
    Details
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Es wird über papierelektrophoretische Untersuchungen der Penicillinbindung an Serumeiweißkörper berichtet. Durch Verwendung eines radioaktiven Penicillinpräparates (N-Äthyl-Piperidinsalz des S35-Penicillin G) war seine Lokalisation zu den Eiweißfraktionen außer durch biologischen Nachweis auch durch Autoradiographie möglich. Die Penicillin-S35-Autoradiogramme ergaben dem gefärbten Albumin entsprechende Figuren. Penicillin wird also offenbar — auch bei hohen Konzentrationen — quantitativ an Albumin gebunden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01467981
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  • 4
    Electronic Resource
    Electronic Resource
    Nucleotide sequence of cro , c II and part of the O gene in phage λ DNA (1978)
    [s.l.] : Nature Publishing Group
    Nature 272 (1978), S. 410-414 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A nucleotide sequence comprising 960 base pairs of bacteriophage λDNA has been determined. The sequence includes the entire genes of the regulatory proteins cro and cII, and part of the O gene, together with control elements for their transcription and translation. The right-hand boundaries ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/272410a0
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  • 5
    Electronic Resource
    Electronic Resource
    Korrelation zwischen Tumorgrad und Infiltrationstiefe beim Endometriumkarzinom (1987)
    Springer
    Archives of gynecology and obstetrics 242 (1987), S. 446-449 
    Details
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01783205
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  • 6
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    EDUARD KOLB, Alemannisch-nordgermanisches Wortgut (Book Review) (1957)
    Wiesbaden, etc. : Periodicals Archive Online (PAO)
    Zeitschrift für Dialektologie und Linguistik. 25 (1957) 227 
    Details
    ISSN: 0044-1449
    Topics: Linguistics and Literary Studies
    Notes: Besprechungen
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:0059-1957-025-00-000019
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  • 7
    Electronic Resource
    Electronic Resource
    Changes in the serine-specific transfer ribonucleic acid pattern of guinea pig epidermis after corticosteroid treatment (1980)
    Springer
    Archives of dermatological research 269 (1980), S. 153-159 
    Details
    ISSN: 1432-069X
    Keywords: Serine-specific isoaccepting tRNAs ; Guinea pig epidermis ; Keratinization ; Triamcinolon ; Serinspezifische isoakzeptierende tRNA ; Meerschweinchenepidermis ; Keratinisation ; Triamcinolon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Durch „reversed phase”-Chromatographie von 3H- oder 14C-serinbeladenen Gesamt-tRNA-Präparaten wurde das Multiplizitätsmuster der serinspezifischen Transfer-Ribonucleinsäuren in der Meerschweinchenepidermis ermittelt und mit dem der Leber als Bezugssystem verglichen. Fünf tRNAser (I–V) konnten dargestellt werden, von denen zwei, tRNA I ser und tRNA V ser , „typisch” für die Epidermis zu sein scheinen und insofern möglicherweise Stoffwechselbesonderheiten der epidermalen Zelldifferenzierung reflektieren. Diese Hypothese wurde weiter untermauert, indem gezeigt werden konnte, daß lokale Applikation des Corticosteroids Triamcinolon in der Meerschweinchenepidermis selektiv tRNA I ser und tRNA V ser auf das Zwei- bis Dreifache erhöht. Die mögliche Bedeutung dieser Befunde wurde eingehend diskutiert.
    Notes: Summary The pattern of serine-specific tRNAs from guinea pig epidermis was determined and compared to that from liver by employing reversed phase chromatography on total tRNA preparations aminoacylated with 3H- or 14C-serine. Five tRNA s ser (I–V) were found, two of which, tRNA I ser and tRNA V ser , appear to be “typical” for epidermis and in so far probably reflect in some way metabolic pecularities of epidermal cell differentiation. This hypothesis was further corroborated by showing that the locally applied corticosteroid triamcinolon selectively increases tRNA I ser and tRNA V ser 2-3-fold. The implications of these findings were discussed in detail.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00406535
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  • 8
    Electronic Resource
    Electronic Resource
    Ein Beitrag zum Einfluß des Stoffüberganges auf eine erzwungene Konvektion an einer fluiden Phasengrenze (1980)
    Springer
    Heat and mass transfer 13 (1980), S. 187-194 
    Details
    ISSN: 1432-1181
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Zusammenfassung Es wird das grenzflächendynamische Verhalten eines fluiden Zweiphasensystems unter den Bedingungen einer gezielten örtlichen Beaufschlagung der Phasengrenze durch ebene Strahlen bei gleichzeitig ablaufendem Stoffübergang untersucht. Hierzu wird in einem ausgewählten Punkt die Tangentialgeschwindigkeit in der Phasengrenze bzw. in Phasengrenznähe in Abhängigkeit von der Austrittsgeschwindigkeit der Strahlen in den beiden Phasen berührungslos mit Hilfe einer Laser-Doppler-Velocimeter-Anordnung im System Luft-Wasser mit und ohne Übergang von Azeton vermessen und verglichen. Die nur bei niedrigen Strahlaustrittsgeschwindigkeiten nachweisbaren Änderungen der Strömungsgeschwindigkeiten durch grenzflächendynamische Effekte werden an Hand von Modellvorstellungen diskutiert und mit theoretischen Untersuchungen des Wärmeüberganges in einem fluiden Zweiphasensystem verglichen.
    Notes: Abstract The interfacial-dynamic behaviour of a fluid two-phase-system with mass transfer was investigated under influence of forced convection in the manner of flat jets directed to the interface. The tangential velocities were measured at a characteristic point near to the interface air/water or in the interface itself using a Laser-Doppler-Velocimeter in dependence on the velocities of jets into two phases in both cases with and without transfer of acetone. The variations of velocities due to the interfacial effects are only detectable at small velocities of the jets. They are discussed by model conceptions and compared with the results of a theoretical research of heat transfer in a fluid two-phase-system (Interfacial-dynamic surface renewal model).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01433446
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  • 9
    Electronic Resource
    Electronic Resource
    Klinische und experimentelle Erfahrungen bei der Behandlung des Blasencarcinoms (1956)
    Springer
    Langenbeck's archives of surgery 284 (1956), S. 575-578 
    Details
    ISSN: 1435-2451
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01484088
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  • 10
    Electronic Resource
    Electronic Resource
    Über die Wirkung von INH auf die Synthese der Leberphosphatide bei Meerschweinchen und Ratten (1959)
    Springer
    Lung 121 (1959), S. 451-454 
    Details
    ISSN: 1432-1750
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02144021
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