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  • 1
    Electronic Resource
    Electronic Resource
    Level of ascorbic acid and its oxidation in the liver of the scorpion,Palamnaeus bengalensis (1969)
    Springer
    Cellular and molecular life sciences 25 (1969), S. 602-602 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Kolorimetrische und manometrische Untersuchungen zur Konzentrationsbestimmung der Ascorbinsäure und ihrer Oxydationsrate in der Skorpionsleber beiPalamaeus bengalensis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01896537
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  • 2
    Electronic Resource
    Electronic Resource
    Plasma and urinary ascorbic acid levels in the postoperative period (1969)
    Springer
    Cellular and molecular life sciences 25 (1969), S. 704-704 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Der Plasma- und der Urin-Askorbinsäurespiegel wurden während der postoperativen Periode nach täglicher Zufuhr von 500 mg Vitamin C bei Patienten kolorimetrisch gemessen. Der schnelle Verbrauch des Vitamins macht einen Askorbinsäurebedarf zur Kollagensynthese am Ort der Wunde wahrscheinlich.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01897573
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  • 3
    Electronic Resource
    Electronic Resource
    Evaluation of Technical HCH Residues in Differentiating Rat Intestinal Epithelial Cells (1996)
    Springer
    Bulletin of environmental contamination and toxicology 56 (1996), S. 617 -621 
    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/s001289900089
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  • 4
    Electronic Resource
    Electronic Resource
    Reversal of the inhibiting effect of 2- chloroethyltrimethyl ammonium chloride on chlorophyll synthesis by sulphur and chlorine (1973)
    Springer
    Cellular and molecular life sciences 29 (1973), S. 1075-1076 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung 2-Chloroäthyltrimethylammoniumchlorid (CCC) in einer Konzentration, welche das Längenwachstum vonBrassica-Keimlingen um etwa 20% hemmt, senkt den Chlorophyllgehalt um rund 80%. Na- und Mg-Salze (500 ppm) vermögen die Wachstumshemmung teilweise aufzuheben. Mit Cl− und SO4—als Anionen beobachtet man zusätzlich eine signifikante Verminderung der CCC-Wirkung auf die Chlorophyllakkumulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01946728
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  • 5
    Electronic Resource
    Electronic Resource
    Antagonism between plant growth regulators in pollen tube elongation ofCalotropis procera (1974)
    Springer
    Cellular and molecular life sciences 30 (1974), S. 495-495 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Während Abscisinsäure allein das Pollenschlauchwachstum inCalotropis procera stimuliert, hebt sie in binärer Kombination mit Auxin, Gibberellinsäure (GA3) und Kinetin deren fördernde Wirkung teilweise auf.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01926313
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  • 6
    Electronic Resource
    Electronic Resource
    Evaluation of strength properties of parallel splint lumber (PSL) and its comparison with laminated veneer lumber (LVL), rubber wood and teak (1999)
    Springer
    Holz als Roh- und Werkstoff 57 (1999), S. 267-270 
    Details
    ISSN: 1436-736X
    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: ( Heavea brasiliensis ) and an exterior type of adhesive were evaluated in air-dry condition. Block shear tests were also carried out in wet and dry condition. Comparisons of these strength values were made with those of laminated veneer lumber (LVL), solid rubber wood and standard teak. The results show that PSL has slightly lower values of strength properties compared to teak, solid rubber wood and quite inferior ones to those of LVL. On the basis of the data obtained in the present study, PSL made from rubber wood can be utilised as a structural material for different purposes like door and window frames, rigs and trusses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001070050056
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  • 7
    Electronic Resource
    Electronic Resource
    Studies on DC electrical resistivity of plantation grown timbers (1997)
    Springer
    Holz als Roh- und Werkstoff 55 (1997), S. 391-394 
    Details
    ISSN: 1436-736X
    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
    Description / Table of Contents: Eucalyptus teriticornis, Grevilles robusta und Hevea brasiliensis, die in Plantagen in Indien wachsen, wurde bei unterschiedlichen Holzfeuchten und Raumtemperaturen untersucht. Die Abhängigkeit der Widerstandes von der Holzfeuchte folgte Beziehungen vom Typ: log (ρ) = A + B log (MC) für Holzfeuchten im Bereich des Fasersättigungspunktes (FSP) bis zu 10%. Unterhalb 10% Feuchte folgte die Beziehung für alle drei Holzarten dem Gleichungstyp: log (ρ) = C + D (MC). Der Einfluß von Faserrichtung und Rohdichte wurde ebenfalls untersucht.
    Notes: Eucalyptus teriticornis, Grevillea robusta and Hevea brasiliensis grown as plantations in India has been measured at different moisture contents (MC) and at room temperature. The dependence of the resistivity on moisture content has been found to obey the relations of the type log (ρ) = A + B log (MC) for the moisture contents ranging from fibre saturation point (fsp) to 10% and of the type log (ρ) = C + D (MC) for the moisture contents below 10% for all the three species. The effects of grain direction and specific gravity on resistivity were also investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001070050252
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  • 8
    Electronic Resource
    Electronic Resource
    Kinetics and mechanism of KBrO3 oxidation of D(+) xylose in acidic medium (1986)
    Springer
    Reaction kinetics and catalysis letters 30 (1986), S. 369-374 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Окисление ксилозы KBrO3 в присутствии H2SO4 подчиняется кинетике первого порядка по [KBrO3] и [ксилоза] и второго порядка по [H2SO4]. Кислотно-катализированная реакция результирует альдоновую кислоту в качестве продукта. Предложен механизм, согласующийся с влиянием температуры, растворителя, высокой кислотности и солей. Рассчитаны термодинамические константы.
    Notes: Abstract KBr3 oxidation of xylose, in presence of H2SO4, follows first order kinetics in [KBrO3] and [xylose], and second order in [H2SO4]. The acid-catalyzed reaction gives aldonic acid as product. A mechanism consistent with temperature, solvent, higher acidity and salt effects has been proposed. Thermodynamic constants have been calculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02064315
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  • 9
    Electronic Resource
    Electronic Resource
    Chroamtographic study of the oxidation of hexachlorotechnetate (IV) ion (1971)
    Springer
    Chromatographia 4 (1971), S. 472-474 
    Details
    ISSN: 1612-1112
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die Oxydation des Hexachlortechnetat(IV)-Ions durch Wasserstoffsuperoxid, Chlor und Luftsauerstoff wurde chromatographisch untersucht. Wasserstoffsuperoxid oxydiert das TcCl 6 2− -Ion direkt zum Pertechnetat-Ion. Bei Oxydation durch Chlor bildet sich zunächst Technetium(V) als Zwischenprodukt, das dann zum Pertechnetat-Ion oxydiert wird. Es wurde keine Oxydation des vierwertigen Technetiums durch Luftsauerstoff bei Sonnenlicht beobachtet.
    Abstract: Résumé L'oxydation de l'ion hexachlorotechnétate(IV) par l'eau oxygenée, le chlore et l'oxygène de l'air a été étudiée au moyen de la chromatographie. Avec l'eau oxygénée, l'ion TcCl 6 2− est directement oxydé, avec formation d'ion pertechnétate. Si l'on emploie le chlore, on obtient d'abord le technétium(V) (produit intermédiaire) puis celui-ci est oxydé en ion pertechnétate. Aucune oxydation du technétium tétravalent par l'oxygène atmosphérique à la lumière solaire n'a été observée.
    Notes: Summary Oxidation of hexachlorotechnetate (IV) ion by hydrogen peroxide, chlorine, and atmospheric oxygen was chromatographically studied. Hydrogen peroxide oxidizes the TcCl 6 2− ion directly to pertechnetate ion. The oxidation by chlorine first produces technetium (V) as an intermediate which is then oxidized to the pertechnetate ion. No oxidation of the tetravalent technetium by atmospheric oxygen in presence of sunlight was observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02268818
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  • 10
    Electronic Resource
    Electronic Resource
    Chromatographic study of the reduction of pertechnetate ion by and in hydrochloric acid. Part II. The effect of bromide and iodide ions, and some other parameters on the reduction process (1971)
    Springer
    Chromatographia 4 (1971), S. 341-344 
    Details
    ISSN: 1612-1112
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es hat sich gezeigt, daß die Reduktion von Pertechnetat-Ionen durch verdünnte Salzsäure durch Zusatz von Bromid — oder Jodi-Ionen zum Reaktionsgemisch beschleunigt wird. Bei Raumtemperatur ist Alterung über zwei Jahre erforderlich, bevor konzentrierte Salzsäure das fünfwertige Technetium, das im ersten Stadium durch sofortige Reduktion des Pertechnetat-Ions entsteht, zu chromatographisch reinem Technetium (IV) reduziert. Es erwies sich, daß die Reduktionsgeschweindigkeit der Pertechnetat-Ionen durch konzentrierte Salzsäure im Bereich 0,3–8 mg/ml unabhängig von der Konzentration an Ammonium-Pertechnetat ist.
    Abstract: Résumé On a montré que la réduction des ions pertechnétate par acide chlorhydrique diué est accélŕee par l'addition d'ions brome et iode au mélange réactionnel. A la température ambiante, if faut deux années de viellissement pour que l'acide chlorhydrique concentré réduisse le technétium pentavalen (produit dans la première étape par réduction instantanée de l'ion pertechnétate) en technétium (IV) de pureté chromatographique. On a trouvé que la viesse de réduction de l'ion pertechnétate par l'acide chlorhydrique concentré est indépendante de la concentration du pertechnétate d'ammonium dans le domaine compris entre 0,3 et 8 mg/ml.
    Notes: Summary The reduction of pertechnetate ion by dilute hydrochloric acid has been shown to be accelerated by the addition of bromide or iodide ions to the reaction mixture. At room temperature, concentrated hydrochloric acid requires an aging of two years to reduce pentavalent technetium, produced in the first stage byan instantaneous reduction of pertechnetate ion, to chromatographically pure technetium (IV). The rate of the reduction of pertechnetate ion by concentrated hydrochloric acid was found to be independent of the concentraton of ammonium pertechnetate in the range of 0.3–8 mg/ml.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02307391
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