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  • Springer  (59)
  • Wiley-Blackwell  (8)
  • Public Library of Science (PLoS)
  • 1990-1994  (46)
  • 1975-1979  (21)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Dielectric relaxation of polyorganophosphazenes (1992)
    Springer
    Journal of inorganic and organometallic polymers and materials 2 (1992), S. 255-267 
    Details
    ISSN: 1572-8870
    Keywords: Polyorganophosphazene ; dielectric relaxation ; two-site model ; conformation analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Dielectric relaxation spectra of poly(bis-trifluoroethoxy phosphazene) (PBFP), poly(bis-n-propoxy phosphazene) (PBPP), and poly(bis-n-propylamino phosphazene) (PBPAP) were measured in wide temperature and frequency regions, and the α-relaxation caused by micro-Brownian motion of segments in the rubbery state and the β-relaxation due to the local motions of the polymer in the glassy region were observed. The dielectric spectra of PBFP at temperatures higher than the rubbery region exhibited a mesophase transition at 358 K. From conformation analysis according to the two-site model, it has been elucidated that the mechanism for β-relaxation of these samples is hindered internal rotation of the side groups.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00696551
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  • 2
    Electronic Resource
    Electronic Resource
    Determination of 1-nitropyrene retained in leaves of roadside trees (1994)
    Springer
    Bulletin of environmental contamination and toxicology 53 (1994), S. 888-894 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00196220
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  • 3
    Electronic Resource
    Electronic Resource
    On boundary integral equation formulation for axisymmetric problems of transversely isotropic media (1991)
    Springer
    Archive of applied mechanics 61 (1991), S. 414-421 
    Details
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Übersicht Behandelt wird die Formulierung der Randintegralgleichung für den axialsymmetrischen, elastisch transversal-isotropen Körper. Es wird angenommen, daß die Achse der elastischen Symmetrie mit der Rotationsachse zusammenfällt und der Körper einer beliebigen axialsymmetrischen Belastung ohne Torsion unterworfen ist. Ausgeführte numerische Beispiele werden mit Ergebnissen der Finite-Element-Methode verglichen.
    Notes: Summary In this paper we deal with the formulation of the axisymmetric boundary integral equation for the transversely isotropic elastic body. We assume that the axis of elastic symmetry is coincident with the axis of rotation and that the elastic body is subjected to arbitrary axisymmetric loading without torsion. Numerical calculations are carried out and compared with results by the finite element method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00790132
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  • 4
    Electronic Resource
    Electronic Resource
    On free-space Green's functions of a transversely isotropic elastic medium subjected to torsionless ring-like loading (1991)
    Springer
    Archive of applied mechanics 61 (1991), S. 222-230 
    Details
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Übersicht Die Greenschen Funktionen für den unendlichen, elastisch transversal-isotropen Körper unter einer ringförmigen, axialsymmetrischen Belastung, die torsionsfrei sei, werden hergeleitet. Dazu werden zwei Potentialfunktionen eingeführt und die Hankel- und Fouriertransformation angewandt. Der isotrope Sonderfall wird ebenfalls angegeben.
    Notes: Summary In this paper we deal with the one of the ways to obtain a free-space Green's function of a transversely isotropic infinite elastic medium which is subjected to a ring-like axisymmetric loading. We assume that the loading is torsionless. To solve the problem, we introduce two potential functions and apply the Hankel and the Fourier transforms. As a special case we solve the same problem of the isotropic medium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00794347
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  • 5
    Electronic Resource
    Electronic Resource
    The evolution of the environment and its influence on the evolution of life (1978)
    Springer
    Origins of life and evolution of the biospheres 9 (1978), S. 81-91 
    Details
    ISSN: 1573-0875
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences
    Notes: Abstract Thermodynamic data and known paleogeological data were used to deduce when and what elements (compounds) were readily available during the whole history of the earth. On the basic assumption that available compounds would dictate the type of organisms to emerge, we attempted to derive a kind of evolutionary tree. This was then compared with the existing evolutionary trees derived from the sequences of proteins and polynucleotides.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00931406
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  • 6
    Electronic Resource
    Electronic Resource
    Disposition of β-hexachlorocyclohexane, p,p′-DDT, and trans-chlordane administered subcutaneously to monkeys (Macaca fascicularis) (1992)
    Springer
    Archives of environmental contamination and toxicology 22 (1992), S. 25-29 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract To evaluate skin lipid analysis for the accumulation level of environmental pollutants, the correlations between organochlorine pesticide residues in adipose tissue, blood, and skin lipids of monkeys were studied. The mixture of β-hexachlorocyclohexane (β-HCH), p,p′-DDT, and trans-chlordane was subcutaneously given to monkeys once weekly for 5 weeks at dose levels of 1 and 10 mg/kg. The chemicals distributed in adipose tissue, blood, and skin lipids were determined six times after the last dosing at intervals of 4 to 9 weeks. Oxychlordane and p,p′-DDE were detected in all tissues together with the administered chemicals. In blood and adipose tissue, trans-chlordane decreased rapidly and oxychlordane and p,p′-DDE increased gradually and then remained at constant levels. β-HCH and p,p′-DDT in adipose tissue increased until the 12th week and then decreased in all animals. The correlation coefficients between blood and adipose tissue regardless of dose level and collection time for each chemical ranged from 0.83 to 0.94. Correlation coefficients between skin lipids and adipose tissue varied with the chemical, namely, 0.31, 0.72, 0.81, 0.81, and 0.83 for p,p′-DDE, tras-chlordane, p,p′-DDT, β-HCH, and oxychlordane, respectively. The results indicated that skin lipid analysis may be useful for the evaluation of specific pollutants in the body burden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00213298
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  • 7
    Electronic Resource
    Electronic Resource
    Specific reaction of aloe extract with serum proteins of various animals (1978)
    Springer
    Cellular and molecular life sciences 34 (1978), S. 523-524 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary We found that aloe extract contains a lectin-like substance which reacts with serum proteins of various animals. Furthermore, in human serum 2 proteins,a 2-macroglobulin anda 1-antitrypsin, were shown to be reactive with aloe extract.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01935968
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  • 8
    Electronic Resource
    Electronic Resource
    Mauritius type black rats with peculiar karyotypes derived from robertsonian fission of small metacentrics (1979)
    Springer
    Chromosoma 75 (1979), S. 51-62 
    Details
    ISSN: 1432-0886
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract All seventeen black rats collected from Mauritius Island were characterized by having many extra small acrocentric autosomes. Their basic karyotype was of Oceanian type, because of the presence of the large metacentric M1 and M2 pairs, but chromosome numbers in 13 specimens among them were 42, those of 3 specimens 43, and those of the remaining one specimen 44. Although the Oceanian type rat had 2 small acrocentric autosomes (pair no. 13), 16 Mauritius rats had 10 small acrocentrics, and the remaining one had 8 small acrocentrics. Comparative karyotype analysis between Oceanian and Mauritius type rats showed that the extra small acrocentrics found in Mauritius rats were due to Robertsonian fission of small metacentric pairs no. 14 and 18 of the original Oceanian type rat. Only one rat with 8 small acrocentrics showed the heteromorphic pair no. 18 consisting of one metacentric and two acrocentrics. The large metacentric M1 chromosome in 13 of 17 rats examined showed homologous pair, but two of them were heteromorphic by involving one metacentric M1 and two acrocentrics. In the remaining two rats M1 chromosome was not observed, but acrocentric pairs no. 4 and 7 were included. These acrocentrics were also suggested to be originated from Robertsonian fission of the large metacentric M1 chromosome. Robertsonian fission seemed to be one of the important mechanism found in karyotype evolution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00330624
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  • 9
    Electronic Resource
    Electronic Resource
    Dynamic sweating response of man to infrared irradiation in various spectral regions (1991)
    Springer
    International journal of biometeorology 35 (1991), S. 18-23 
    Details
    ISSN: 1432-1254
    Keywords: Sweating ; Infrared irradiation ; Spectral region ; Cutaneous thermoreceptor ; Skin temperature
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract In an attempt to detect differences in the thermal effect of infrared irradiation of different wavelengths, transient sweating response to infrared irradiation in various spectral regions was examined. In Series 1, the ventral or dorsal surface of the nude subject was irradiated repetitively for a period of 4 min (2 min on, 2 min off) by each of three kinds of infrared heaters with main emissivity in ‘near-infrared’ (NIR; 0.7–2.8 μm), ‘intermediate-infrared’ (MIR; 1.5–5.8 μm), and ‘far-infrared’ (FIR; 2.8–25 μm) regions. The sweating response on a non-irradiated area tended to be the greatest with MIR, while the magnitude of the sweating response on the irradiated area showed no consistent differences among various wavelengths. The results infer that MIR stimulated cutaneous thomoreceptors most effectively, while its direct effect on local sweat gland activity was minimal. In Series 2, the effects of 9–12 min irradiations in more restricted ranges of wavelength were compared by the combination of the three kinds of heaters with filters (translucent to wavelength ranges of 1.3–2.7, 2.7–3.5, 3.6–8.0 μm, respectively). The sweating response on a remote area was predominantly greater with the range of 2.7–3.5 μm than with the other wavelength ranges, while the local effect on sweating was minimal with this range. The results of Series 2 reinforce those of Series 1, indicating that the degree of stimulation of cutaneous thermoreceptors and of direct thermal effect on sweat gland activity differ with spectral regions incident on the skin, thus affecting local and remote effects on the sweating response.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01040958
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  • 10
    Electronic Resource
    Electronic Resource
    Meromorphic mappings onto compact complex spaces of general type (1975)
    Springer
    Inventiones mathematicae 31 (1975), S. 7-16 
    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/BF01389863
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