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  • Springer  (79)
  • American Geophysical Union  (17)
  • American Geophysical Union (AGU)
  • American Meteorological Society (AMS)
  • 2005-2009  (45)
  • 2000-2004  (28)
  • 1980-1984  (23)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Die mesozoische Magnafazies-Abfolge in den nördlichen Anden (Peru, Ekuador, Kolumbien) (1980)
    Springer
    International journal of earth sciences 69 (1980), S. 875-891 
    Details
    ISSN: 1437-3262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Abstract Over 100 sedimentary formations and groups are known from the epicontinental to continental Mesozoic (“Oriente Andino” sensu H.Bürgl) in the Andean region of Peru, Ecuador and Colombia. These lithostratigraphic (or facial) complexes are attached to 6 magnafacies-units which follow each other chronologically, thereby clearly evidencing a uniform paleogeographic-sedimentary development in the mentioned areas, although the geological structure of the Western respectively Coastal Cordilleras of the North (Colombia, Ecuador) is fundamentally different from that of the Southern ones (Peru, Chile).
    Abstract: Resumen Más de 100 grupos y formaciones sedimentarios des »Oriente Andino« (sensu H.Bürgl) en los Andes septentrionales (PerÚ, Ecuador, Colombia) están asociados a 6 unidades magnafaciales que se suceden cronológicamente. Este »Oriente Andino« abarca las cuencas sedimentarias de tipo epicontiental a continental de la época mesozoica. Se bosqueja así claramente, en las áreas mencionadas, una evolución paleogeográfica-sedimentológica bastante uniforme, aunque las estructuras geológicas de las Cordilleras Occidentales (o Costeras, respectivamente) de la parte septentrional (Colombia, Ecuador) se diferencian fundamentalmente de las del Sur (PerÚ, Chile).
    Notes: Zusammenfassung Die weit über 100 sedimentären Formationen und Gruppen im mesozoischen epikontinentalen bis kontinentalen „Oriente Andino“ der nördlichen Anden (Peru, Ekuador und Kolumbien) werden 6 zeitlich aufeinanderfolgenden Magnafazies-Einheiten zugeordnet. Dabei zeichnet sich deutlich eine einheitliche paläogeographisch-sedimentäre Entwicklung in den genannten Räumen ab, obwohl sich der geologische Bau der andinen West- bzw. Küstenkordilleren im Norden (Kolumbien, Ekuador) grundsätzlich vom Süden (Peru, Chile) unterscheidet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02104651
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  • 2
    Electronic Resource
    Electronic Resource
    Genetic organisation of the M protein region in human isolates of group C and G streptococci: two types of multigene regulator-like (mgrC) regions (2000)
    Springer
    Molecular genetics and genomics 262 (2000), S. 965-976 
    Details
    ISSN: 1617-4623
    Keywords: Key words Group C streptococci ; Group G streptococci ; Multigene regulator ; Streptokinase gene ; Streptococcus dysgalactiae subsp. equisimilis ; M protein gene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In addition to β-haemolytic streptococci belonging to Lancefield group A (Streptococcus pyogenes, GAS), human isolates of group C (GCS) and group G (GGS) streptococci (S. dysgalactiae subsp. equisimilis) have been implicated as causative agents in outbreaks of purulent pharyngitis, of wound infections and recently also of streptococcal toxic shock-like syndrome. Very little is known about the organisation of the genomic region in which the emm gene of GCS and GGS is located. We have investigated the genome sequences flanking the emm gene in GCS by sequencing neighbouring fragments obtained by inverse PCR. Our sequence data for GCS strains 25287 and H46A revealed two types of arrangement in the emm region, which differ significantly from the known types of mga regulon in GAS. We named this segment of the genome mgrC (for multigene regulon-like segment in group C streptococci). In strains belonging to the first mgrC type (prototype strain 25287) the emm gene is flanked upstream by mgc, a gene that is 61% identical to the mga gene of GAS. A phylogenetic analysis of the deduced protein sequences showed that Mgc is related to Mga proteins of various types of GAS but forms a distinct cluster. Downstream of emm, the mgrC sequence region is bordered by rel. This gene encodes a protein that functions in the synthesis and degradation of guanosine 3′,5′ bipyrophosphate (ppGpp) during the stringent regulatory response to amino acid deprivation. In the second mgrC type (prototype strain H46A), the genes mgc and emm are arranged as in type 1. But an additional ORF (orf) is inserted in opposite orientation between emm and rel. This orf shows sequence homology to cpdB, which is present in various microorganisms and encodes 2′,3′ cyclo-nucleotide 2′-phosphodiesterase. PCR analysis showed that these two mgrC arrangements also exist in GGS. Our sequence and PCR data further showed that both types of mgrC region in GCS and GGS are linked via rel to the streptokinase region characterised recently in strain H46A. A gene encoding C5a peptidase, which is present at the 3′ end of the mga regulon in GAS, was not found in the mgrC region identified in the GCS and GGS strains investigated here.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00008665
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  • 3
    Electronic Resource
    Electronic Resource
    Jede endliche Gruppe ist Automorphismengruppe einer endlichen ErweiterungK¦ℚ (1983)
    Springer
    Archiv der Mathematik 41 (1983), S. 139-142 
    Details
    ISSN: 1420-8938
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01196869
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  • 4
    Electronic Resource
    Electronic Resource
    Lava bubble-wall fragments formed by submarine hydrovolcanic explosions on Lō'ihi Seamount and Kīlauea Volcano (2000)
    Springer
    Bulletin of volcanology 61 (2000), S. 437-449 
    Details
    ISSN: 1432-0819
    Keywords: Key words Lava bubble-wall fragments ; Lō'ihi Seamount ; Kīlauea Volcano
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract  Glassy bubble-wall fragments, morphologically similar to littoral limu o Pele, have been found in volcanic sands erupted on Lō'ihi Seamount and along the submarine east rift zone of Kīlauea Volcano. The limu o Pele fragments are undegassed with respect to H2O and S and formed by mild steam explosions. Angular glass sand fragments apparently form at similar, and greater, depths by cooling-contraction granulation. The limu o Pele fragments from Lō'ihi Seamount are dominantly tholeiitic basalt containing 6.25–7.25% MgO. None of the limu o Pele samples from Lō'ihi Seamount contains less than 5.57% MgO, suggesting that higher viscosity magmas do not form lava bubbles. The dissolved CO2 and H2O contents of 7 of the limu o Pele fragments indicate eruption at 1200±300 m depth (120±30 bar). These pressures exceed that generally thought to limit steam explosions. We conclude that hydrovolcanic eruptions are possible, with appropriate pre-mixing conditions, at pressures as great as 120 bar.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00008910
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  • 5
    Electronic Resource
    Electronic Resource
    Measurement of the η production in proton-proton collisions with the COSY time-of-flight spectrometer (2003)
    Springer
    The European physical journal 16 (2003), S. 127-137 
    Details
    ISSN: 1434-601X
    Keywords: PACS. 25.40.Ve Other reactions above meson production thresholds (energies 400 MeV) – 13.75.Cs Nucleon-nucleon interactions (including antinucleons, deuterons, etc.) – 14.40.Aq π, K, and η mesons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The reaction pp → ppη was measured at excess energies of 15 and 41 MeV at an external target of the Jülich Cooler Synchrotron COSY with the time-of-flight spectrometer. About 25000 events were measured for the excess energy of 15 MeV and about 8000 for 41 MeV. Both protons of the process ppη were detected with an acceptance of nearly 100% and the η was reconstructed by the missing-mass technique. For both excess energies the angular distributions are found to be nearly isotropic. In the invariant-mass distributions strong deviations from the pure phase space distributions are seen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epja/i2002-10079-7
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  • 6
    Electronic Resource
    Electronic Resource
    On the structure of the ‘red’ globular cluster NGC 1806 in the large magellanic cloud (1982)
    Springer
    Astrophysics and space science 84 (1982), S. 133-141 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A structural study of the old globular cluster NGC 1806 in the LMC has been carried out by star counts onB- andV-ESO 3.6 m telescope plates with three different limiting magnitude levels. The star density distribution was obtained directly from the surface strip count function with the Plummer formalism and the generalized Schuster law according to Lohmann. This yields beside the central density the structural parametern and the characteristic length parameterR 0 for each individual colour and magnitude level. The results show that the blue stellar content of NGC 1806 — the horizontal branch stars — is more concentrated towards the cluster center than the red giant and subgiant objects. Also such a dynamical mass segregation is observed for the red giants compared with the subgiants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00713631
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  • 7
    Electronic Resource
    Electronic Resource
    Identification of a blue object with a newly detected X-ray source (1983)
    Springer
    Astrophysics and space science 94 (1983), S. 291-293 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A blue object was identified on POSS prints. Its position coincides with an X-ray source found by the HEAO-B satellite.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00653718
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  • 8
    Electronic Resource
    Electronic Resource
    X-ray emission from the W UMa system TZ Bootis (1983)
    Springer
    Astrophysics and space science 97 (1983), S. 225-227 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract HEAO-B (Einstein) satellite measurements with the Imaging Proportional Counter revealed the W UMa binary system TZ Bootis as an X-ray source. It is estimated that the luminosity ratioL x/Lvof this system is about 10−3.8 indicating that TZ Bootis is in the transition region between A- and W-type W UMa systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00653484
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  • 9
    Electronic Resource
    Electronic Resource
    Preparation of medium for large-scale hybridoma culture (1983)
    Springer
    Methods in cell science 8 (1983), S. 141-145 
    Details
    ISSN: 1573-0603
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Procedures for preparing 400-liter lots of medium for culturing hybridoma cells are detailed. Modifications to Williams essential basal medium are listed and the effectiveness of the medium for culturing hybridoma cells for antibody production is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01665876
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  • 10
    Electronic Resource
    Electronic Resource
    Oxalosis associated with an Aspergillus niger fungus ball. Report of a case (1981)
    Springer
    Mycopathologia 73 (1981), S. 29-31 
    Details
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract During a seventeen day period an A. niger fungus ball evolved within a healed tuberculous cavity of a patient. Symptoms were a cough with a chocolate brown expectoration and dyspnea. The patient died and necropsy was performed. Crystals of calcium oxalate were deposited in the cavity lining and in the adjacent tissue of the lung. Fibrosis, mononuclear infiltration and intraalveolar purulent exudate were seen in these tissues. Some small vessels presented recent thrombosis and deposition of calcium oxalate. The bronchus connected with the cavity presented a disrupted epithelial layer, edema, polymorphonuclear infiltration and birefringent crystals. Scattered areas of tubular atrophy, glomerular sclerosis and lymphoid infiltration were seen in the cortex of the kidney. Oxalate crystals were also seen within the renal tubuli.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00443010
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