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  • 1985-1989  (14)
  • 1975-1979  (11)
  • 1
    Digitale Medien
    Digitale Medien
    Low-loss chalcogenide glass fiber with core-cladding structure (1988)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 53 (1988), S. 553-554 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Ge-As-Se-Te glass fiber having the core-cladding structure was prepared using a rod-in-tube method. Fibers more than 30 m in length were drawn from a crucible with a nozzle and coated with an UV curable polymer. The diameters of the core and clad were 300 and 420 μm, respectively. The transmission loss spectra of the fibers were measured by the cut-back method and 0.6 dB/m was attained at the wavelength of 8.5 μm.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.99854
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  • 2
    Digitale Medien
    Digitale Medien
    Superconducting glass ceramics with Tc=100 K based on the Bi-Pb-Sr-Ca-Cu-O system (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 54 (1989), S. 1169-1171 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Superconducting glass ceramics of Bi0.8Pb0.2SrCaCu1.5Oy (sample A) and BiPb0.2SrCaCu1.5Oy (sample B) have been prepared by using the melt quenching method. It was found that the volume fraction of the high Tc phases in sample A annealed at 830 or 840 °C for 250 h was much higher than that in sample B. The annealed (840 °C, 250 h) sample A exhibited superconductivity with a Tc (zero) of 100 K and a critical current density (77 K, zero magnetic field) of 120 A/cm2.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.101482
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  • 3
    Digitale Medien
    Digitale Medien
    A model of foreshock occurrence (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 96 (1989), S. 0 
    Details
    ISSN: 1365-246X
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Geologie und Paläontologie
    Notizen: We have constructed a model for the occurrence of foreshocks and foreshock sequences. The foreshocks as well as the main shock are assumed to occur because of the abrupt coalescence of pre-existing cracks. Coalescence occurs if the stress intensity factors at the crack tips exceed a certain critical value. In the sub-critical state each crack undergoes accelerated extension quasi-statically due to stress corrosion, until it reaches the critical state, at which point growth becomes catastrophic.The rate of foreshock occurrence increases as the time of the main shock approaches and is described by a power law function of time. The exponent in the power law is independent of the distributions of crack sizes, spacings and fracture strengths. This universality implies that foreshock patterns should be useful identifiers for the prediction of the occurrence times of large earthquakes. However, we find that there is considerable diversity in the patterns of energy release. Nevertheless, there is some hope that the magnitudes of large earthquakes can be predicted from the magnitudes of the events in the foreshock sequences if one has a priori information describing the distributions of barrier strengths and geometries.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-246X.1989.tb06003.x
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  • 4
    Digitale Medien
    Digitale Medien
    Serum Antibodies to Peripheral Nerve Antigens in Guillain-Barré Syndrome (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 540 (1988), S. 0 
    Details
    ISSN: 1749-6632
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1749-6632.1988.tb27105.x
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  • 5
    Digitale Medien
    Digitale Medien
    Changes in T-Cell Subsets in Experimental Allergic Neuritis (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 540 (1988), S. 0 
    Details
    ISSN: 1749-6632
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1749-6632.1988.tb27225.x
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  • 6
    Digitale Medien
    Digitale Medien
    Postnatal Development of the Stomach in the Japanese Field Vole, Microtus montebelli (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Anatomia, histologia, embryologia 17 (1988), S. 0 
    Details
    ISSN: 1439-0264
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: The postnatal development of the stomach in the Japanese field vole, Microtus montebelli, were studied with the light and scanning electron microscopes.Three kinds of cells constituting the fundic glands, that is, mucous neck cells, parietal cells and chief cells were distinguished clearly by light microscopy to have been differentiated around 14 days old. At 4 days old, the structure of pyloric glands was similar to that of adult stage. The investigation on the development of esophageal sac, fundic stomach and pyloric stomach was made by measuring each area of the vertical section. The fundic stomach grew more rapidly than the esophageal sac and pyloric stomach. The ratio of esophageal sac to fundic stomach and pyloric stomach in the area was about 1.5: 2: 1 at 20 days old.In the fundic glands, 5-hydroxytriptamine (5-HT)- and somatostatin-immunoreactive cells appeared first at 6 days old and at birth, respectively and in the pyloric glands, gastrin-, 5-HT- and somatostatin-immunoreactive cells appeared at 19th day fetus. Gastrin-immunoreactive cells showed a rapid increase in the pyloric glands after birth. The distribution and frequency of endocrine cells were similar to that of adult at about 20 days old.The fimbria showed bank-like appearance at the beginning and thereafter they showed the process-like structure. The fimbria in both the appearance and the length at 60 days old was similar to that of adult stage.As a whole, the stomach of the field vole seemed to became mature at 20 days old in the aspects of gastric endocrine cells and morphology of gastric wall, although the fimbria formation was not accomplished at the same period.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1439-0264.1988.tb00553.x
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  • 7
    Digitale Medien
    Digitale Medien
    The development of in situ high-resolution electron microscopy (1988)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 44 (1988), S. 965-975 
    Details
    ISSN: 1600-5724
    Quelle: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Thema: Chemie und Pharmazie , Geologie und Paläontologie , Physik
    Notizen: Progress in introducing high-resolution electron microscopy at controlled elevated temperatures is described. Initial work involved the study of dynamic events in materials like cadmium telluride which can be heated to a sufficient degree by the imaging beam. However, for reproducible experiments the temperature must be carefully controlled and measured, and this involves a heating specimen holder. Results achieved recently this way on a variety of substances including CdTe, GaAs, Si, GaAs-Ti, GaAs-Ni, Si- Mo and Si-Ti, are reported. To derive information pertinent to bulk behavior both the manner of an in situ reaction and its kinetics should be compared with those for specimens prepared from macroscopic materials treated ex situ. For interface reactions in semiconductor materials it is found that events typical of the bulk can be recorded under high-resolution conditions in a large proportion of cases.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1107/S0108767388007445
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  • 8
    Digitale Medien
    Digitale Medien
    A possible preferential inhibition of chemotaxis of polymorphonuclear neutrophils by a chemical modification (1979)
    Springer
    Cellular and molecular life sciences 35 (1979), S. 1345-1347 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The modification of neutrophils with amino group blocking reagents of different chemical specificities showed that dansyl chloride caused inhibition of chemotaxis without suppression of random movement. Dansylated neutrophils, like control cells, ingested bacteria. Neither the stimulated cyanide-insensitive respiration, nor lactate production during phagocytosis, was affected significantly by dansylation as compared with the inhibition of directed movement.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01963999
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  • 9
    Digitale Medien
    Digitale Medien
    Dependence on the lipophilicity of maleimide derivatives in their inhibitory action upon chemotaxis in neutrophils (1979)
    Springer
    Cellular and molecular life sciences 35 (1979), S. 1054-1056 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Modification of polymorphonuclear neutrophils by a series of maleimide derivatives with various degrees of lipophilicity and hydrophilicity indicated that hydrophilic reagents had little effect on chemotaxis, whereas the degree of the inhibitory effect of lipophilic reagents on the chemotaxis was parallel to the degree of their lipophilicity.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01949937
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  • 10
    Digitale Medien
    Digitale Medien
    Inhibition of the accumulation of macrophages and the generation of macrophage chemotactic activity by dexamethasone in concanavalin A-induced peritonitis of mice (1988)
    Springer
    Inflammation research 25 (1988), S. 156-163 
    Details
    ISSN: 1420-908X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract A delayed-type inflammatory response was evoked in mice using concanavalin A (Con A) as a stimulus, and the effect of various anti-inflammatory agents on the inflammations was examined. The intraperitoneal injection of Con A in the mouse resulted in the marked accumulation of leukocytes, especially macrophages, in the peritoneal cavity between 16 and 48 hr after the injection. Prior to the accumulation of macrophages, the chemotactic activity for macrophages appeared in the peritoneal fluid, and was associated with protein(s) in the molecular weight range from 10000 to 100000 daltons. When the effect of various agents on Con A-induced peritonitis was examined, neither anticomplementary agents (FUT-175 and K-76 COONa), bromophenacyl bromide, nordihydroguaiaretic acid nor indomethacin affected the generation of chemotactic activity and the accumulation of macrophages, suggesting that C5a, prostaglandins and leukotriene B4 are hardly involved in the Con A-induced macrophage accumulation. On the other hand, dexamethasone suppressed both the generation of chemotactic activity and the accumulation of macrophages. Taking into consideration the observation that the synthesis of macrophage chemotactic factors by mitogen-stimulated lymphocytes is inhibited by glucocorticoids these results suggest that the macrophage chemotactic lymphokines might be involved in the accumulation of macrophages in Con A-induced peritonitis.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01969107
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