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  • 1
    Electronic Resource
    Electronic Resource
    Interaction of acridine orange and sodium poly-α, L-glutamate (1977)
    Springer
    Colloid & polymer science 255 (1977), S. 865-868 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Die Wechselwirkung zwischen Natriumsalz-α, L-Glutamin-Säure wurde mit den Methoden der Spektroskopie und der Viskositätsmessung untersucht. Aus den Bindungsdaten wurde die molare Änderung von Entropie und Enthalpie und die Zahl der Brückenstellen des Polymeren berechnet. Die Werte von ΔS° sind positiv. Für die Binding ergibt sich für ΔS° eine starke Verminderung im Bereich pH 5.0. Diese ist durch die Änderung der Konformation der Polymerketten (Helix ⇋ Knäuel-Umwandlung) zu erklären.
    Notes: Summary The interaction of acridine orange and sodium poly-α, L-glutamate in the pH range of 3.8–6.8 was studied by a spectral method and viscosity measurement. From the binding data, the molar change in entropy, enthalpy and the number of binding sites on polymer were calculated. The values of ΔS° were positive. ΔS° for binding decreasing extensively in pH range of 5.0. These results are explained by the transition of helix ⇋ coil of the polymer. The intrinsic viscosity reduction in the presence of the dye, in pH 3.8 is due to the formation of dye bridges between the polymer helix.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01617093
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  • 2
    Electronic Resource
    Electronic Resource
    Effects of digestion with N-oligosaccharide glycopeptidase upon certain lectin-peroxidase-diaminobenzidine reactions of glycoproteins in mammalian and avian tissues (1984)
    Springer
    Histochemistry and cell biology 81 (1984), S. 401-407 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary To determine the histochemical localization of asparagine-linked oligosaccharides of glycoproteins in a series of different mammalian and avian tissues, the effects of digestion with N-oligosaccharide glycopeptidase upon certain lectin-peroxidase-diaminobenzidine reactions of the histological structures involved have been studied by light microscopy. Throughout the tissues examined, asparaginelinked oligosaccharides of glycoproteins were localized mainly in histological structures of connective and muscular tissues, but were hardly or not visualized in those of epithelial tissues. these results appear to lead to the concept that connective and muscular tissues represent the main sites where plasma types of glycoproteins are involved in mammalian and avian species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00514336
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  • 3
    Electronic Resource
    Electronic Resource
    P-T history of a mantle diapir: the Horoman peridotite complex, Hokkaido, northern Japan (1995)
    Springer
    Contributions to mineralogy and petrology 120 (1995), S. 223-248 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The Horoman peridotite complex, Hokkaido, Japan is divided into Lower and Upper zones on the basis of contrasting geological features. The complex recorded a consecutive decompression history in chemical zoning of pyroxenes and plagioclase in plagioclase lherzolite, which is interpreted to have been derived from garnet lherzolite by subsolidus decompression reactions. In the Lower Zone, and earlier decompression history is clearly preserved in large pyroxene porphyroclasts, which show marked M-shaped Al zoning characterized by low Al concentration at the core (Al=0.12/6 oxygens), gradual increase toward the marginal region, and rapid decrease toward the rim. The Ca content in the core is nearly constant (Ca=0.03/6 oxygens) with slight increase toward the margin followed by abrupt decrease toward the rim. The Al and Ca contents in the core of orthopyroxene in plagioclase lherzolite from the Upper Zone (Al=0.22, Ca=0.055/6 oxygens) are much higher than those for the Lower Zone, and the Al content typically decreases monotonously from the core to the rim with several exceptions that show poorly developed M-shaped zoning profiles. The earliest P-T conditions, inferable from the core compositions of pyroxenes are 900–950°C and ∼20 kbar for the Lower Zone and 1100–1150°C and ∼20 kbar for the Upper Zone. The increase of Al from the core to the margin is inferred to have resulted from nearly adiabatic decompression from these conditions into spinel peridotite facies. The complex experienced further decompression from the spinel stability field into the plagioclase stability field, which is inferred from plagioclase zoning in fine-grained aggregates composed mostly of plagioclase, chromite spinel, and olivine with minor pyroxenes. The Na-Ca ratio of each plagioclase grain decreases from the core to the rim, suggesting continuous decompression reaction producing olivine and plagioclase from pyroxenes and spinel. The sharp increase in Ca content toward the rim indicates that fairly rapid cooling associated with decompression is necessary to form and preserve the marked zoning. The sharp decrease in Al and Ca contents toward the rim of orthopyroxene was also formed during this final ascent of the complex. The systematic changes of the mineralogic and petrographic features that are gradational between the Lower and Upper zones suggest that the Horoman complex retains a temperature variation from the upper mantle. The Upper Zone is interpreted to have followed a higher temperature decompression path than the Lower Zone and probably represents a relatively hotter portion of a mantle diapir ascending from a depth greater than 60 km in the upper mantle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00306505
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  • 4
    Electronic Resource
    Electronic Resource
    P-T history of a mantle diapir: the Horoman peridotite complex, Hokkaido, northern Japan (1995)
    Springer
    Contributions to mineralogy and petrology 120 (1995), S. 223-248 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract  The Horoman peridotite complex, Hokkaido, Japan is divided into Lower and Upper zones on the basis of contrasting geological features. The complex recorded a consecutive decompression history in chemical zoning of pyroxenes and plagioclase in plagioclase lherzolite, which is interpreted to have been derived from garnet lherzolite by subsolidus decompression reactions. In the Lower Zone, an earlier decompression history is clearly preserved in large pyroxene porphyroclasts, which show marked M-shaped Al zoning characterized by low Al concentration at the core (Al=0.12/6 oxygens), gradual increase toward the marginal region, and rapid decrease toward the rim. The Ca content in the core is nearly constant (Ca=0.03/6 oxygens) with slight increase toward the margin followed by abrupt decrease toward the rim. The Al and Ca contents in the core of orthopyroxene in plagioclase lherzolite from the Upper Zone (Al=0.22, Ca=0.055/6 oxygens) are much higher than those for the Lower Zone, and the Al content typically decreases monotonously from the core to the rim with several exceptions that show poorly developed M-shaped zoning profiles. The earliest P-T conditions, inferable from the core compositions of pyroxenes are 900–950° C and ∼20 kbar for the Lower Zone and 1100–1150° C and ∼20 kbar for the Upper Zone. The increase of Al from the core to the margin is inferred to have resulted from nearly adiabatic decompression from these conditions into spinel peridotite facies. The complex experienced further decompression from the spinel stability field into the plagioclase stability field, which is inferred from plagioclase zoning in fine-grained aggregates composed mostly of plagioclase, chromite spinel, and olivine with minor pyroxenes. The Na-Ca ratio of each plagioclase grain decreases from the core to the rim, suggesting continuous decompression reaction producing olivine and plagioclase from pyroxenes and spinel. The sharp increase in Ca content toward the rim indicates that fairly rapid cooling associated with decompression is necessary to form and preserve the marked zoning. The sharp decrease in Al and Ca contents toward the rim of orthopyroxene was also formed during this final ascent of the complex. The systematic changes of the mineralogic and petrographic features that are gradational between the Lower and Upper zones suggest that the Horoman complex retains a temperature variation from the upper mantle. The Upper Zone is interpreted to have followed a higher temperature decompression path than the Lower Zone and probably represents a relatively hotter portion of a mantle diapir ascending from a depth greater than 60 km in the upper mantle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004100050072
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  • 5
    Electronic Resource
    Electronic Resource
    HGF Induction in normal rat by transferring agents and lymph from liver-injured rat (1988)
    Springer
    Naturwissenschaften 75 (1988), S. 519-521 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00361290
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  • 6
    Electronic Resource
    Electronic Resource
    Formation of micro-liver by intestine epithelial HGF in primary culture (1990)
    Springer
    Naturwissenschaften 77 (1990), S. 330-332 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01138388
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  • 7
    Electronic Resource
    Electronic Resource
    In vivo modification of hepatopathy in rat by intestine epithelial HGF (1991)
    Springer
    Naturwissenschaften 78 (1991), S. 457-459 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01134382
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  • 8
    Electronic Resource
    Electronic Resource
    Metabolism of gibberellins in a cell-free system from immature seeds of Phaseolus vulgaris L. (1986)
    Springer
    Planta 168 (1986), S. 190-199 
    Details
    ISSN: 1432-2048
    Keywords: Gibberellin biosynthesis ; Phaseolus (gibberellins) ; Seed (gibberellins)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The biosynthetic steps from gibberellin A12-aldehyde (GA12-aldehyde) to C19-GAs were studied by means of a cell-free system from the embryos of immature Phaseolus vulgaris seeds. Stable-isotope-labeled GAs were used as substrates and the products were identified by gas chromatography-mass spectrometry. Gibberellin A12-aldehyde was converted to GA4 via non-hydroxylated intermediates and to GA1 via 13-hydroxylated intermediates. 13-Hydroxylation took place at the beginning of the pathway by the conversion of GA12-aldehyde to GA53-aldehyde. The conversion of GA20 to GA5 and GA6 was also shown but no 2β-hydroxylating activity was found. Endogenous GAs from embryos and testas of 17-dold seeds were re-examined by gas chromatography-selected ion monitoring using stable-isotopelabeled GAs as internal standards. Gibberellins A9, A12, A15, A19, A23, A24, and A53 were identified for the first time in P. vulgaris, in addition to GA1, GA4, GA5, GA6, GA8, GA17, GA20, GA29, GA37, GA38 and GA44, which were previously known to occur in this species. The levels of all GAs, except the 2β-hydroxylated ones, were greater in the embryos than in the testas. Conversely, the contents of GA8 and GA29, both 2β-hydroxylated, were much higher in the testas than in the embryos.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00402963
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  • 9
    Electronic Resource
    Electronic Resource
    Molecular properties of lignin-carbohydrate complexes from beech (Fagus crenata) and pine (Pinus densiflora) woods (1988)
    Springer
    Wood science and technology 22 (1988), S. 177-189 
    Details
    ISSN: 1432-5225
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary Lignin-carbohydrate complexes (LCC) were isolated from pine (Pinus densiflora) and beech (Fagus crenata) milled-wood lignins. The LCCs were treated with enzyme to obtain precipitates (A-P, B-P) and water soluble fractions. The water soluble fraction from beech LCC was subjected to gel filtration to give LCC fragments (B-E-I). In order to protect the phenolic hydroxyl group, B-E-I and B-P were methylated with diazomethane, resulting in nonphenolic LCC fractions B-E-Ip and B-Pp, respectively. On treatment of B-E-I and B-P with sodium hydroxide, a remarkable amount of xylose and a trace of arabinose were detected as monomeric sugars. However, the same alkaline treatment of B-E-Ip and B-Pp gave only a faint trace of xylose. With DDQ treatment of acetylated B-E-I and B-P, monomeric sugars were released in the same amount as those obtained on alkaline treatment. Methylation of the monomeric sugars gave monomethylated xylose. From these results, it was concluded that xylose residues participate in lignin-carbohydrate linkages, and that lignin is linked to xylose at the 0–2 or 0–3 positions through an alkali-labile benzyl ether bond. The molecular-weight distributions of the lignin moieties, measured by HPLC, indicate that the lignin moieties of beech LCC are 100 times larger but less frequent than those of pine LCC. This nonuniformity of distribution of lignin and carbohydrate moieties in hardwood LCC molecules would result in less hydrophobic interaction in aqueous solutions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00355853
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  • 10
    Electronic Resource
    Electronic Resource
    Ester linkages between lignin and glucuronoxylan in a lignin-carbohydrate complex from beech (Fagus crenata) wood (1988)
    Springer
    Wood science and technology 22 (1988), S. 231-241 
    Details
    ISSN: 1432-5225
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary A water-soluble lignin-carbohydrate complex (LCC) isolated from beech (Fagus crenata) MWL was investigated. Results from gelfiltration chromatography and the infrared spectrum of the LCC treated with alkali under mild conditions indicated that the LCC contained alkali-labile bonds. Decrease of uronic acid content and the detection of 4-O-methylglucose in the sodium borohydride-reduced LCC suggested the presence of an ester linkage between lignin and glucuronic acid in the glucuronoxylan. Conductometric titration also indicated the existence of glucuronic acid ester linked to lignin. From these results, it is concluded that the LCC contained an ester linkage between lignin and glucuronoxylan and that about one-third of the glucuronic acid present in the LCC was involved in this ester linkage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00386018
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