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  • 1985-1989  (16)
  • 1970-1974  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Reciprocal biological activities of the cyclic tetrapeptides chlamydocin and HC-toxin (1985)
    Springer
    Cellular and molecular life sciences 41 (1985), S. 348-350 
    Details
    ISSN: 1420-9071
    Keywords: Chlamydocin ; HC-toxin ; phytotoxin ; cytostatic agent
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Chlamydocin, a potent cytostatic agent against cultured mammalian cells, and HC-toxin, a host-specific phytotoxin, are cyclic tetrapeptides containing the same epoxide α-amino acid. We show here that these compounds have reciprocal biological activity; HC-toxin is cytostatic against cultured mastocytoma cells, and chlamydocin has host-specific toxin activity against maize. Chlamydocin and another related cyclic peptide, Cyl-2, are less host-specific than HC-toxin because maize tolerant to HC-toxin is more sensitive to chlamydocin and Cyl-2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02004498
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Structures and Properties of Sago Starches with Low and High Viscosities on Amylography (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 54 (1989), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Both amyloses and amylopectins from sago starches with low (280 BU, low-v) and high (735 BU, high-v) viscosities on amylography differed in molecular structures. The low-v amylopectin (average chain length, c.I., 22) was a smaller molecule with a slightly higher amount of long chains than the high-v amylopectin (c.I., 22). The number-and weight-average degrees of polymerization of the low-v amylose were 2490 and 5090, respectively, which were half those of the high-v amylose. The low-v amylose had a lower molar fraction of branched molecules with a shorter inner chain length than the high-v amylose, but both branched molecules had a similar number (17–19) of chains on the average. Both starch granules had the same crystalline type (Ca) and amylose content (24%).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1989.tb08596.x
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  • 3
    Electronic Resource
    Electronic Resource
    5:1 on-off contrast InGaAs/InP multiple quantum well Fabry–Perot étalon modulator (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 55 (1989), S. 1817-1819 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report the first demonstration of an InGaAs/InP multiple quantum well Fabry–Perot étalon modulator. The obtained on-off contrast is 5:1 at −16 V applied voltage for 1540 nm wavelength light. The absorption coefficient of the multiple quantum well around 1540 nm increases from 1000 to 6300 cm−1 as the applied voltage increases from 0 to −16 V, and the relative refractive index change is up to −0.9%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.102175
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  • 4
    Electronic Resource
    Electronic Resource
    Neurological Mutation Characterized by Dysmyelination in NCTR-Balb/C Mouse with Lysosomal Lipid Storage Disease (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 45 (1985), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: Morphological and biochemical studies were performed on the CNS of neurologically affected NCTR Balb/C mouse. Histological and electron microscopic techniques demonstrated severe myelin deficiency in the affected brains. Neither the presence of lipid-containing macrophages nor reactive gliosis was apparent. Analysis of myelin-associated lipids and proteins revealed prominent depletion of galactocerebroside, sulfatide, and proteolipid proteins. In contrast to the scarcity of myelin specific constituents a marked accumulation of GM2 and GM3 gangliosides and several neutral glycolipids, i.e., glucocerebroside, lactosylceramide, gangliotriaosylceramide, and gangliotetraosylceramide were found in affected CNS. These abnormalities were already apparent in 12-day-old pups as well as in 65-day-old mice. A significant deficit in the proportion of long-chain fatty acids (C24), notable in both normal and α-hydroxy acids of cerebrosides from affected white matter, was measured. The lack of reactive gliosis, the observed depletion of galactocerebroside and sulfatide at the early age of 12 days, and the relative decrease in long-chain fatty acids in affected CNS strongly suggest a defect in myelinogenesis in this mutant rather than a secondary process of myelin breakdown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1985.tb04044.x
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  • 5
    Electronic Resource
    Electronic Resource
    Convulsions after adrenaline administration during entlurane anaestbmia (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 41 (1986), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1986.tb13138.x
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  • 6
    Electronic Resource
    Electronic Resource
    The 2ω-dimensional light-cone integrals with momentum shift (1988)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 29 (1988), S. 1032-1033 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: A class of light-cone integrals typical to one-loop calculations in the two-component formalism is considered. For the particular cases considered, convergence is verified though the results cannot be expressed as a finite sum of elementary functions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.528018
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Characterization of the free-carrier concentrations in doped β-SiC crystals by Raman scattering (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 354-358 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: LO phonon-overdamped plasmon coupled modes in n-type epitaxial films of β-SiC have been measured in the carrier concentration range from 6.9×1016 to 2×1018 cm−3. The carrier concentrations and damping constants are determined by line-shape fitting of the coupled modes and compared with the values derived from Hall measurements. The concentrations obtained from the two methods agree fairly well. The Faust–Henry coefficient determined from the fitting is 0.35. The line-shape analysis of the coupled mode has shown that the dominant scattering mechanisms in β-SiC are deformation-potential and electro-optic mechanisms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.338830
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  • 8
    Electronic Resource
    Electronic Resource
    Localized oral amyloidosis: ultrastructural and immunohistochemical study (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 16 (1987), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: An histopathological, ultrastructural and immunohistochemical study of localized amyloidosis in the floor of mouth of a 58-year-old male in good health is reported. The lesion was composed of nodular deposits of amyloid surrounded by libroblastic or histiocytic cells, and metaplastic ossification was seen in some deposits. Ultrastructural findings disclosed typical amyloid fibrils with felt-like structure. Closely connected with the amyloid deposits were cells with active histiocytic or fibroblastic appearance. Their cytoplasm contained amyloid fibrils. At the outermost area of the amyloid deposits, bundles of amyloid fibrils projected from these cells into amyloid deposits. Amyloid protein of the present case did not react to any antisera using anti-AA, anti-A lambda, anti-A kappa and anti-prealbumin antisera. It can be assumed that histiocytes or fibroblasts play an important role in local amyloid formation, however, the nature of amyloid fibril protein in the present case is unknown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1987.tb01493.x
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  • 9
    Electronic Resource
    Electronic Resource
    Hyaline bodies in ameloblastoma: histological and ultrastructural observations (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 14 (1985), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: An exceedingly rare case of ameloblastoma. plexiform type, which contained numerous hyaline bodies was reported. Hyaline bodies occurred within the parenchyma, and showed similar histochemical reactions to those of hyaline bodies in odontogenic cysts. Ultrastructurally, hyaline bodies found in the present case of ameloblastoma were composed of a peripheral electron-dense area and central electron-lucent area. Well-developed endoplasmic reticulum containing electron-lucent and homogeneous substance were seen in the epithelial cells adjacent to hyaline bodies. Furthermore, electron-dense spherical granules, with or without limiting membrane, were scattered in the cytoplasm of epithelial cells. It is thought that hyaline bodies in the present case of ameloblastoma are particular products formed by odontogenic epithelial cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1985.tb00541.x
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  • 10
    Electronic Resource
    Electronic Resource
    Nodular hyperplasia of oncocytes in mouse submandibular glands (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 14 (1985), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Multinodular hyperplastic foci of oncocytes found in mouse submandibular glands were examined ultrastructurally, and their morphogenesis discussed. The oncocytic foci showed lobular architecture surrounded by myoepithelial cells, and tubular formations were frequently present. The cytoplasm of the oncocytes was distended by tightly-packed and non-oriented mitochondria which varied in size and shape. Furthermore, varying numbers of electron-dense fine granules, which were remnants of secretory granules of granular duct cells, were scattered in the cytoplasm. Within the salivary gland parenchyma neighboring the hyperplastic foci of oncocytes, intermediate-type cells between oncocytes and normal salivary gland epithelia were found. The result of the present study shows that the oncocytic change has a tendency to be more frequent in the granular ducts and less in the striated ducts, and that some oncocyte-transformed cells proliferate to form nodular hyperplastic foci.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1985.tb00481.x
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