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  • Springer  (91)
  • American Geophysical Union  (19)
  • EDP Sciences  (15)
  • American Meteorological Society (AMS)
  • Blackwell Publishing Ltd
  • Paleontological Society
  • 2015-2019  (83)
  • 1980-1984  (25)
  • 1975-1979  (22)
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  • 1
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    Corridor development in Gauteng, South Africa (2015)
    Springer
    Details
    Publication Date: 2015-10-16
    Print ISSN: 0343-2521
    Electronic ISSN: 1572-9893
    Topics: Geography
    Published by Springer
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    PAPER CURRENT
  • 2
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    Comparison of analytical methods for profiling N- and O-linked glycans from cultured cell lines (2015)
    Springer
    Details
    Publication Date: 2015-10-28
    Print ISSN: 0282-0080
    Electronic ISSN: 1573-4986
    Topics: Chemistry and Pharmacology
    Published by Springer
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    PAPER CURRENT
  • 3
    Electronic Resource
    Electronic Resource
    OVARIAN DEFECT IN RATS CARRYING THE GROWTH AND REPRODUCTION COMPLEX (1983)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 10 (1983), S. 0 
    Details
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The growth and reproduction complex contains recessive genes (grc) which influence body weight and gonadal development. Homozygous males are sterile, and they have an arrest of spermatogenesis at the primary spermatocyte stage. Homozygous females are fertile but have a reduced reproductive capacity. The data presented in this paper show that the latter defect is associated with a decrease in the relative number of secondary ovarian follicles and an increase in the number of atretic follicles. This finding indicates that most of the primary follicles do not mature properly. Thus, the genetic defect in gametogenesis controlled by the grc appears to occur at the same stage of development in both females and males.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.1983.tb01017.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Respiration during seed maturation (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 57 (1983), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The contribution of cytochrome and alternative pathways to respiration during soybean [Glycine max (L.) Merr. cv. Chippewa 64] seed formation and maturation was measured by oxygen consumption of embryonic axis and cotyledon tissues and of mitochondria isolated from immature seeds. Respiration rates (dry weight basis) declined duing the last month of seed maturation. Cyanide sensitive respiration (cytochrome pathway) accounted for 80 to 90% of total oxygen consumption throughout seed formation and maturation. The proportion of the total respiration resistant to 1 mM cyanide and inhibited by 1 mM salicylhydroxamic acid (alternative pathway) did not exceed 6%. A residual oxygen consumption, accounting for 5 to 15% of total respiration, persisted in the presence of both inhibitors. Likewise, virtually no alternative respiration was found in mitochondria prepared from immature seeds. The alternative respiratory pathway seems absent during soybean seed formation and maturation regardless of whether grown in the greenhouse or field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1983.tb02758.x
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  • 5
    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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  • 6
    Electronic Resource
    Electronic Resource
    Remarks on erratic period fluctuations of detached close binaries and the constancy of the orbital period of XY UMa (1977)
    Springer
    Astrophysics and space science 48 (1977), S. 137-144 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It is shown that the erratic changes of the orbital period, which are observed in some detached eclipsing binary systems, cannot be interpreted as real if their light curves show changing anomalies with asymmetric minimum profiles. In this case the photometrically determined times of the minima do not coincide with the ideal geometric ones, which are unobservable. This fact and the applied reduction methods for deriving the photometric times of minima cause systematic period errors of cumulative character. The discussion of six photoelectrically-determined minima obtained within the last 20 yr, and earlier photographic ones of the 0d.479 period eclipsing binary XY UMa yields a constant period. The long cyclic light curve variations due to starspot activity of the larger and hotter component of this system are reflected in corresponding period oscillations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00643045
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  • 7
    Electronic Resource
    Electronic Resource
    A polarimetric investigation of the eclipsing binary XY ursae majoris (1977)
    Springer
    Astrophysics and space science 52 (1977), S. 351-356 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract On three nights in February 1976 we carried out polarimetric measurements, in V, of the short periodic eclipsing binary XY UMa, covering a complete cycle. The results are as follows: (1) Within all phase intervals the linear polarization does not exceed 0.1%. (2) In the phase range 0 p .95–1 p .35 the scatter of the Stokes parametersQ andU is about twice that within the phase interval 0 p .35–0 p .95. (3) A periodogram analysis of these data revealed a period of 21000 s, which is equal to half the orbital periodP o=0d.47899 within 1.5%. From these we derive the conclusions that no circumstellar envelope can be made responsible for the observed long-term changes of the light curve and system brightness, supporting the earlier spectroscopic finding. The different scatter of the Stokes parameters at different phase intervals and theP o/2 periodicity are in favor of the star spot model for XY UMa proposed by one of the authors (E. G.).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01093871
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  • 8
    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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  • 9
    Electronic Resource
    Electronic Resource
    Endolymphatic leakage in case of acute loss of cochlear microphonics (1978)
    Springer
    Cellular and molecular life sciences 34 (1978), S. 363-364 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Rapid loss of cochlear microphonics in guinea-pigs previously exposed to high-energy impulse noise was shown to be related to the breakdown of the endolymphatic boundary. The cochlear duct was rendered leaky by deterioration of the reticular membrane, and damage of sensory and supporting cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01923037
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  • 10
    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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