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  • Springer  (60)
  • Elsevier  (37)
  • Oxford University Press  (7)
  • Paleontological Society  (4)
  • American Geophysical Union  (3)
  • American Meteorological Society (AMS)
  • 1990-1994  (88)
  • 1970-1974  (23)
Collection
Keywords
Publisher
Years
Year
  • 11
    Electronic Resource
    Electronic Resource
    Pulmonary aspergillus intracavitary colonization (PAIC) (1990)
    Springer
    Mycopathologia 112 (1990), S. 93-104 
    Details
    ISSN: 1573-0832
    Keywords: Aspergillus ; fungal elements
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract We have attempted to elucidate the natural history of pulmonary aspergillus intracavitary colonization (PAIC) based on more than 350 cases of the disease observed in the last 11 years and on data collected from the literature. The data indicate that PAIC is a dynamic process consequent to the continual growth and death of fungal elements and also with their relationships to the anatomic features of the cavity (valvular mechanisms, vascular alteration). The clinical presentations reflect immunological changes in the host. Metabolites produced by the species of Aspergillus involved affect the clinical presentation of the syndrome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00436504
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  • 12
    Electronic Resource
    Electronic Resource
    Small angle neutron scattering from oxygen precipitates in silicon (1992)
    Springer
    Applied physics 54 (1992), S. 19-21 
    Details
    ISSN: 1432-0630
    Keywords: 61.12Dw ; 72.10 ; 78.50G
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The formation of silicon oxide precipitates from Czochralski grown silicon depends on the time and temperature of the heat treatment as well as on the initial content of interstitially dissolved oxygen. Samples containing between 5×1017 Oi/cm3 and 13×1017 Oi/cm3 have been heated at 750° C for 96 h. SiO2 precipitates of various shape and size have been obtained and investigated by means of small angle neutron scattering (SANS) in the Q-range 0.05 Å−1〈Q〈0.2 Å−1. The obtained SANS patterns reveal a typical anisotropy of their intensity distribution, which splits into a central peak at Q〈0.1 Å−1 due to the shape of the individual particles and a number of weak intensities for large Q-values, originating from a correlation between defects, possibly between the precipitates. While these correlation peaks in the SANS patterns are seen best for rather low values of about (5–7)×1017 Oi/cm3 oxygen content, the central peak anisotropy is most pronounced for higher values of ca 10×1017 Oi/cm3. The integrated intensity of the central peak increases with increasing initial oxygen content. For comparison, untreated samples of the same initial oxygen content do not reveal any anisotropic SAN scattering or a broadened central peak beam.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00348123
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  • 13
    Electronic Resource
    Electronic Resource
    Anisotropy and temperature dependence of small angle neutron scattering from silicon-oxide precipitates in silicon (1991)
    Springer
    Applied physics 53 (1991), S. 422-425 
    Details
    ISSN: 1432-0630
    Keywords: 61.12Dw ; 72.10 ; 78.50G
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Czochralski grown silicon crystals contain interstitially dissolved oxygen which diffuses on heating to form precipitates of silica. We have examined these precipitates by small angle neutron scattering (SANS) in the Q-range 0.05 Å−1〈Q〈0.4 Å−1. The obtained SANS patterns reveal pronounced anisotropic intensity distributions which resemble the symmetry of the host crystal. The SANS spectra show an anisotropic central peak at Q〈0.1 Å−1 due to the single particle shape and a number of weak intensities for larger Q-values. These weak side maxima are considered correlation peaks or quasi-elastic interference peaks. They show, however, an unexpected and distinct temperature dependence: with decreasing temperature below values of 220 K their intensity is lost slowly, but reversibly. At T = 50 K only the central peak from the single-particle scattering remains unchanged. Upon heating, the correlation peaks regain their former value of intensity and Q-position without any evidence of thermal hysteresis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00348156
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  • 14
    Electronic Resource
    Electronic Resource
    The generalized doubling construction and formal concept analysis (1994)
    Springer
    Algebra universalis 32 (1994), S. 341-367 
    Details
    ISSN: 1420-8911
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01235175
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  • 15
    Electronic Resource
    Electronic Resource
    The effect of the environment on the permeability and composition of Citrus leaf cuticles (1990)
    Springer
    Planta 180 (1990), S. 147-153 
    Details
    ISSN: 1432-2048
    Keywords: Citrus ; Cuticle (composition, permeability) ; Humidity and cuticle permeability ; Temperature and cuticle permeability ; Wax (cuticle)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The water permeabilities of 3174 astomatous, isolated cuticular membranes from Citrus aurantium L. leaves were studied. Trees were grown in environmental chambers at temperatures ranging from 15 to 35° C and humidities of 50% and 90%. Photosynthetically active radiation was 500–1000 μmol photons·m−2· s−1. The different growing conditions had no effect on the water permeability of the membranes. However, storing isolated cuticular membranes at 8° C for up to 112 weeks decreased their water permeability, and it is argued that this is a consequence of the healing of defects between wax crystallites, and also indicates the dynamic nature of cuticular waxes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00193989
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  • 16
    Electronic Resource
    Electronic Resource
    Metabolism of deoxycytidine in isolated perfused organs (1972)
    Springer
    Radiation and environmental biophysics 8 (1972), S. 333-341 
    Details
    ISSN: 1432-2099
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Description / Table of Contents: Zusammenfassung Der Stoffwechsel von Deoxycytidin-U-14C wurde in isoliert perfundierter normaler und regenerierter Rattenleber, in Rattendarm und in normaler Mäuseleber untersucht. Eine Methode zur Perfusion der Mäuseleber wird beschrieben. Der Abbau von Deoxycytidin ist langsam in Rattenorganen, jedoch rasch in Mäuseleber. Dabei sind zwischen den beiden Tierarten keine großen Unterschiede beim Einbau in Leber-DNA zu verzeichnen. Die quantitativen Aspekte des Deoxycytidinstoffwechsels in isolierten Organen werden diskutiert.
    Notes: Summary The metabolism of deoxycytidine-U-14C was studied in isolated perfused normal and regenerating rat liver, in perfused rat intestine and in isolated perfused mouse liver. A technique to perfuse mouse liver is described. Catabolism of dCyd is very slow in organs of the rat whereas it is rapid in those of the mouse. Nevertheless, incorporation into liver DNA does not differ markedly between the species. The quantitative aspects of dCyd metabolism in the isolated organs are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01190619
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  • 17
    Electronic Resource
    Electronic Resource
    Zahm verzweigte Überlagerungen mit orthosingulärem Verzweigungsort (1972)
    Springer
    Inventiones mathematicae 15 (1972), S. 67-71 
    Details
    ISSN: 1432-1297
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01418643
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  • 18
    Electronic Resource
    Electronic Resource
    Ein Residuensatz für symmetrische Bilinearformen (1970)
    Springer
    Inventiones mathematicae 11 (1970), S. 319-328 
    Details
    ISSN: 1432-1297
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01403186
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  • 19
    Electronic Resource
    Electronic Resource
    The limit of detection in differential scanning calorimetry (1992)
    Springer
    Journal of thermal analysis and calorimetry 38 (1992), S. 277-287 
    Details
    ISSN: 1572-8943
    Keywords: DSC ; limit of detection ; polymorphic transitions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Anhand von sehr kleinen Signalen von spontanen polymorphen übergängen bei CsCl, K2Cr2O7 und Na2SO4 wird ein Verfahren zur Bestimmung der Nachweisgrenze von DSC-Geräten beschrieben. Es wird gezeigt, wie derartige Signale gut aufgelöst in DSC-Diagrammen von Pulverproben erhalten werden können. Um sie vom Rauschen der Basislinie zu unterscheiden, sollten sie eine Höhe von mindestens dem Doppelten der Basislinienbreite aufweisen. Für das angewendete Gerät beträgt die entsprechende geringste Wärmemenge, d.h. die Nachweisgrenze 0.1 mJ.
    Notes: Abstract A procedure is described to determine the limit of detection of DSC instruments by using tiny signals from spontaneous polymorphic transitions of CsCl, K2Cr2O7 and Na2SO4. It is shown how such signals can be found well-resolved in DSC diagrams of powder samples. To distinguish them from the baseline noise they should exhibit a height at least twice that of the baseline width. For the instrument employed the corresponding smallest amount of heat, i.e., the limit of detection, was found to be 0.1 mJ.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01915492
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  • 20
    Electronic Resource
    Electronic Resource
    Study of the spinodal decomposition of an Fe-28Cr-2Mo-4Ni-Nb alloy by small-angle neutron scattering (1990)
    Springer
    Journal of materials science 25 (1990), S. 4977-4980 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Superferritic stainless steels become embrittled when aged in a temperature interval around 475 °C, This phenomenon has been studied in the alloy Fe-28Cr-2Mo-4Ni-Nb by measuring the decrease in the energy absorbed in the impact test as a function of ageing time at 475 °C. The change which occurs in the microstructure has been studied by small-angle neutron scattering. It is shown that ageing at 475 °C produces the decomposition of the alloy in zones rich in chromium via spinodal decomposition. The high rate of embrittlement observed, compared with that which occurs in Fe-Cr binary alloys of similar chromium content, is related to a faster development of the spinodal decomposition in the steel studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00580116
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