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  • 1
    Electronic Resource
    Electronic Resource
    Carbon-13 NMR investigations on the structure of .alpha.-keto acids in aqueous solution (1988)
    s.l. : American Chemical Society
    The @journal of organic chemistry 53 (1988), S. 214-216 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00236a050
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  • 2
    Electronic Resource
    Electronic Resource
    Nitrogen-oxygen bond fission as the rate-determining step in the aqueous conversion of N-peptidyl-O-(p-nitrobenzoyl)hydroxylamines to p-nitrobenzoic acid and peptidylhydroxamic acids (1989)
    s.l. : American Chemical Society
    The @journal of organic chemistry 54 (1989), S. 5880-5883 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00286a017
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  • 3
    Electronic Resource
    Electronic Resource
    Glycosaminoglycans of Rat Cerebellum: II. A Developmental Study (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 44 (1985), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: Total and individual glycosaminoglycans (GAGs) were determined in rat cerebellum in tissue explants at various postnatal ages. The major constituents of GAGs were chondroitin sulfate (CS), hyaluronic acid (HA), and heparan sulfate (HS). Dermatan sulfate (DS) and keratan sulfate (KS) could not be detected and therefore each amounts to 〈5% of all GAGs at all ages studied. HA was the prominent GAG during postnatal development and only a minor constituent at adult ages, whereas CS was the predominant GAG in adulthood. HS remained relatively constant throughout development. The incorporation of [3H]glucosamine into individual GAGs was highest for HS at postnatal day 6, whereas HA showed intermediate and CS the lowest levels of incorporation during the first postnatal week. All major GAGs showed the lowest incorporation values at adult ages.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1985.tb12902.x
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  • 4
    Electronic Resource
    Electronic Resource
    Glycosaminoglycans of Rat Cerebellum: I. Quantitative Analysis of the Main Constituents at Postnatal Day 6 (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 44 (1985), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: Isolated glycosaminoglycans (GAGs) were quantified biochemically in the cerebella of 6-day-old rats. 14C-Labeled hyaluronic acid (HA) and chondroitin-4-sulfate (C-4-S), added prior to isolation of GAGs from tissue, served as internal standards to allow correction for unknown losses during the purification procedure and exact quantification of GAGs in the intact tissue. Three main constituents—HA, chondroitin sulfate (CS), and heparan sulfate (HS)—were found at concentrations of 1.82, 1.52, and 0.76 μg/mg protein amounting to 44%, 37%, and 19% of the total GAG fraction, respectively. Incorporation of [3H]glucosamine precursor into GAGs was higher for HS (56% of incorporated precursor) and lower for HA (29%) and CS (15%). The specific activities of individual GAGs were 64.7 nCi/μg for HS, 14.2 for HA, and 8.3 for CS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1985.tb12901.x
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  • 5
    Electronic Resource
    Electronic Resource
    SOME REMARKS ON THE BEHAVIOR OF THE MAGNETOTELLURIC PHASE (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical prospecting 33 (1985), S. 0 
    Details
    ISSN: 1365-2478
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Physics
    Notes: The magnetotelluric phase in the medium of incidence over a good conductor varies from its value at the conductor surface, usually close to 45°, to the characteristic standing-wave phaseshift of 90° over a distance of a few conductor skin-depths, much shorter than the vacuum wavelength at the frequencies considered. Over the top of a graben or at the surface of a two-layer structure the basement can be looked upon as the matrix. If the graben or the overburden is a better conductor it will carry an extra current density in phase with the electric field, thus giving rise to an additional magnetic field also in phase with the electric field. This drives the argument of the surface impedance toward smaller values. For a more resistive graben or overburden the current is depressed, corresponding to a reduction of the surface magnetic field by an amount in phase with the electric field. This effect drives the phase of the impedance to values above the characteristic 45° of a uniform conductor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2478.1985.tb00774.x
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  • 6
    Electronic Resource
    Electronic Resource
    MULTIFOCAL FIBROSCLEROSIS: CUTANEOUS ASSOCIATIONS (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Australasian journal of dermatology 27 (1986), S. 0 
    Details
    ISSN: 1440-0960
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: There is a group of disorders characterized by simultaneous and progressive fibrosis of several discrete regions of the body. This disease complex, “multifocal fibrosclerosis”, most commonly involves the retroperitoneal and mediastinal compartments and may be accompanied by cutaneous lesions. In most cases the aetiology is unknown but there is good evidence, supported by the patient we describe, for a vasculitic origin in a significant proportion of patients.We report a case of multifocal fibrosclerosis associated with cutaneous lesions. These included livedo reticularis and recurrent, painful nodules and pustules on the legs and feet, which progressed to chronic ulceration. Histologically there was evidence of an underlying necrotising vasculitis.A review of the cutaneous changes that have been reported in association with multifocal fibrosclerosis allows speculation regarding the aetiology of the disease process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1440-0960.1986.tb00279.x
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  • 7
    Electronic Resource
    Electronic Resource
    Increased UDP-Glucuronyltransferase in putative preneoplastic foci of human liver after long-term use of oral contraceptives (1985)
    Springer
    Naturwissenschaften 72 (1985), S. 277-278 
    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/BF00448695
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  • 8
    Electronic Resource
    Electronic Resource
    Eine neue Tüpfelreaktion auf Aldehyde (1960)
    Springer
    Microchimica acta 48 (1960), S. 592-596 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary The color reaction of indole with aldehydes in concentrated hydrochloric acid, which up till now has been used as a test for indole, can be employed as a general sensitive and specific test for aldehydes. If carried out as a spot test aldehydes can be detected in very small amounts.
    Abstract: Résumé On applique comme procédé de recherche général, sensible et spécifique des aldéhydes, la réaction colorée de l'indole avec les aldéhydes dans l'acide chlorhydrique concentré, qui, jusqu'à maintenant, trouvait une application seulement comme recherche de l'indole. En exécutant la réaction comme recherche à la touche, on peut établir la présence de très petites quantités d'aldéhydes.
    Notes: Zusammenfassung Die Farbreaktion von Indol mit Aldehyden, die bis jetzt lediglich als Indolnachweis empfohlen worden ist, ermöglicht einen allgemeinen, empfindlichen und spezifischen Aldehydnachweis. In der Arbeitsweise der Tüpfelanalyse können kleinste Mengen Aldehyde nachgewiesen werden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01215442
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  • 9
    Electronic Resource
    Electronic Resource
    Eine neue selektive Tüpfelreaktion auf organische Disulfide (1962)
    Springer
    Microchimica acta 50 (1962), S. 501-503 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary Aliphatic and aromatic disulfides and diselenides are reduced selectively by nickel-aluminium alloys (50/50) in hydrochloric acid-alcohol to yield thiols or selenols, which in their turn can be detected through the iodine-azide reaction. This permits a selective detection of disulfides in the absence of other compounds which react positively with the iodine-azide solution (thiols, thiones, mustard oils, thio acids, and derivatives).
    Abstract: Résumé L'alliage nickel-aluminium (50/50), dans le mélange alcool-acide chlor — hydrique, permet de réduire sélectivement les bisulfures et les biséléniures aliphatiques et aromatiques, en thiols ou en sélénols que l'on peut alors caractériser par la réaction à l'iode-azoture. Ceci rend possible une recherche sélective des bisulfures en l'absence d'autres composés donnant une réaction positive avec la solution à l'iode-azoture (thiols, thiones, essences de moutarde, acides du soufre et dérivés).
    Notes: Zusammenfassung Alphatische und aromatische Disulfide und Diselenide werden selektiv durch Nickel-Aluminiumlegierung (50/50) in salzsaurem Alkohol zu Thiolen bzw. Selenolen reduziert, die ihrerseits mittels der Jodazidreaktion nachgewiesen werden können. Dies ermöglicht einen selektiven Nachweis von Disulfiden bei Abwesenheit anderer mit Jodazidlösung positiv reagierender Verbindungen (Thiole, Thione, Senföle, Thiosäuren und Derivate).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01225844
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  • 10
    Electronic Resource
    Electronic Resource
    Nachweis von α,β-ungesättigten und aromatischen Carbonylverbindungen sowie von 1,2-Dicarbonylverbindungen in der Tüpfelanalyse (1962)
    Springer
    Microchimica acta 50 (1962), S. 878-882 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary Aromatic andα,β-dicarbonyl compounds as well as 1,2-dicarbonyl compounds condense withp-nitrophenylhydrazine to yield the correspondingp-nitrophenyl hydrazones or di-p-nitrophenylhydrazones. By alkalization these products are rearranged into colored nitronic acid salts. These reactions permit the selective detection of aromatic andα,β-unsaturated carbonyl compounds, for which no chemical procedure has been known previously.
    Abstract: Résumé Les composés carbonylésα,β-non saturés et aromatiques ainsi que les composés dicarbonylés-1,2 se condensent par lap-nitrophénylhydrazine enp-nitrophénylhydrazones ou di-p-nitrophénylhydrazones correspondantes. Celles-ci sont transposées par alcalinisation en sels colorés de l'acide nitronique. Ces réactions permettent la recherche sélective des composésα,β-non saturés et aromatiques pour lesquels on ne connaissait pas de procédé chimique jusqu'à maintenant.
    Notes: Zusammenfassung Aromatische undα, β- ungesättigte Carbonylverbindungen sowie 1,2-Dicarbonylverbindungen kondensieren mit p-Nitrophenylhydrazin zu entsprechenden p-Nitrophenylhydrazonen bzw. Di-p-Nitrophenylhydrazonen. Diese werden durch Alkalisierung in farbige Nitronsäuresalze umgelagert. Diese Reaktionen gestatten den selektiven Nachweis aromatischer undα,β-ungesättigter Carbonylverbindungen, wofür bisher kein chemisches Verfahren bekannt war.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01219028
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