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  • Springer  (94)
  • 1990-1994  (50)
  • 1985-1989  (22)
  • 1975-1979  (21)
  • 1950-1954  (1)
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Year
  • 11
    Electronic Resource
    Electronic Resource
    On context patterns associated with concept lattices (1993)
    Springer
    Order 10 (1993), S. 363-373 
    Details
    ISSN: 1572-9273
    Keywords: 06B05 ; 06A15 ; Context ; arrow relation ; concept lattice ; context pattern ; strictly realizable context pattern
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In this paper, we consider the following reconstruction problem: Given two ordered sets (G, ≤) and (M, ≤) representing join- and meet-irreducible elements, respectively together with three relationsJ, , $${\hbox{\ \hbox{$\mid$}\kern -1em\lower .5em \hbox{$\leftarrow$}}} $$ onG×M modelling comparability (g≤m) and maximal noncomparability with respect tog (g≰m, butg≤m*) and with respect tom (g≰m, butg≤m*). We determine necessary and sufficient conditions for the existence of a finite latticeL and injections α:G→J(L) and β:M→M(L) such that the given order relations and the abstract relations coincide with the one induced by the latticeL.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01108830
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  • 12
    Electronic Resource
    Electronic Resource
    The heliometer principle and some modern applications (1985)
    Springer
    Astrophysics and space science 110 (1985), S. 183-192 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Beside some historical notes about the large Fraunhofer's heliometer used by Bessel and Argelander, some modern applications of the heliometer principle for the geometric and photometric autocalibration of detectors and the determination of absolute radial velocities with slitless field spectrographs are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00660628
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  • 13
    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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  • 14
    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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  • 15
    Electronic Resource
    Electronic Resource
    On stable fields in positive characteristic (1989)
    Springer
    Geometriae dedicata 29 (1989), S. 335-375 
    Details
    ISSN: 1572-9168
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00572450
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  • 16
    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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  • 17
    Electronic Resource
    Electronic Resource
    Rotational analysis of nitrosyl chloride (1988)
    Springer
    Microchimica acta 95 (1988), S. 429-431 
    Details
    ISSN: 1436-5073
    Keywords: nitrosyl chloride ; vibrational-rotational
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The vibrational-rotational spectra of the fundamentals of nitrosyl chloride have been recorded with a Fourier transform interferometer at an apodized resolution of 0.004 cm−1. The data have been analyzed to determine excited state molecular constants forv 1 v 2, andv 3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01349802
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  • 18
    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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  • 19
    Electronic Resource
    Electronic Resource
    Acute pulmonary paracoccidioidomycosis in an immunosuppressed patient (1979)
    Springer
    Mycopathologia 68 (1979), S. 171-174 
    Details
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A case of an acute pulmonary paracoccidioidomycosis following the use of immunosuppressive therapy in a solid cancer patient is reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00578525
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  • 20
    Electronic Resource
    Electronic Resource
    Nonlocal light-cone operators describing hadrons in processes with large momentum transfer (1987)
    Springer
    Czechoslovak journal of physics 37 (1987), S. 516-520 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The application of a special version of the nonlocal light-cone expansion to hadron processes with large momentum transfer is reviewed. The light-cone operators introduced in this approach may be considered as the relevant hadron operators: Their matrix elements between the vacuum and a one-hadron state coincide with the quark distribution amplitude, and their anomalous dimensions are unique extensions of the well known Brodsky-Lepage evolution kernels having also a simple relation to the Altarelli-Parisi kernels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01599957
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