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  • Springer  (202)
  • Wiley-Blackwell  (54)
  • 1985-1989  (256)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Thermal studies on metal complexes of 5-nitrosopyrimidine derivatives (1986)
    Springer
    Journal of thermal analysis and calorimetry 31 (1986), S. 573-580 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die folgenden Komplexe von Zn(II), Cd(II), Hg(II) und Hg(I) mit 4-Amino-1,6-dihydro-2-methylthio-5-nitroso-6-oxopyrimidin (MTH) wurden dargestellt und hinsichtlich ihres thermischen Verhaltens durch TG und DSC untersucht: Zn(MT)2 · 3H2O, Cd(MT)·H2O, Cd(MTH)Cl2, Hg(MTH)Cl2 und Hg2(MTH)(NO3). Die Werte der Enthalpie der Dehydratisierung und Dehalogenisierung wurden berechnet.
    Abstract: Резюме Получены комплексы с остава Zn(MT)2·ЗН2О, Cd(MT)2·H2O, Cd(MTH)Cl2, Hg(MTH)Cl2 и Hg2(MT)NO3, где МТН — 4-амино-1,6-дигидро-2-метил тио-5-нитрозо-6-оксопири мидин. Термическое поведен ие комплексов изучено методами ТГ и ДСК. Вычислены энтальпии реакций де гидратации и дегалог енирования.
    Notes: Abstract The following Zn(II), Cd(II), Hg(II) and Hg(I) complexes of 4-amino-1,6-dihydro-2-methylthio-5-nitroso-6-oxopyrimidine (MTH) have been prepared and their thermal behaviour studied by TG and DSC techniques: Zn(MT)2·3H2O, Cd(MT)·H2O. Cd(MTH)Cl2, Hg(MTH)Cl2 and Hg2(MT)(NO3). The dehydration and dehalogenation enthalpy values were calculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01914234
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  • 2
    Electronic Resource
    Electronic Resource
    Superoxide dismutase in strains of the genus Flavobacterium: isolation and characterization (1989)
    Springer
    Archives of microbiology 152 (1989), S. 407-410 
    Details
    ISSN: 1432-072X
    Keywords: Superoxide dismutase ; Flavobacterium genus ; Flavobacterium halmephilum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Two electrophoretically different forms of superoxide dismutase, one of them containing manganese-protein and the other iron-protein, were detected in eleven different strains of the genus Flavobacterium. The activities of the different strains were similar to those described for other bacteria. The two molecular forms of the enzyme differed clearly with regard to activity, electrophoretic behaviour, sensitivity to cyanide and peroxide, and NaCl requirement. Both molecular forms were isolated from Flavobacterium halmephilum. Molecular mass absorption spectra, metal content, optimum pH, heat-sensitivity and stability were described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00425182
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  • 3
    Electronic Resource
    Electronic Resource
    Rh(III), Pd(II), Pt(IV) and Au(III) complexes of 2-thiopyrimidine derivatives (1987)
    Springer
    Monatshefte für Chemie 118 (1987), S. 883-891 
    Details
    ISSN: 1434-4475
    Keywords: Complexes ; Thermal analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es wurden einige neue Thiopyrimidinderivate und deren Komplexe synthetisiert und mittels Elementaranalyse, IR und1H-NMR charakterisiert: 4-Amino-5-nitroso-6-oxo-1,2,3,6-tetrahydro-2-thio-pyrimidin (TANH), dessen 2-Methylthio-Derivat (MTH), das Ammoniumsalz vonTANH (sTANH) und sechs neue Komplexe der Formeln Rh(MT)2Cl · 2H2O, Pd(MTH)2Cl2, Pt(MTH)2Cl4, Au(MTH)Cl3, Pd(TANH)2Cl2 und Au(TAN −)Cl. Das thermische Verhalten der Verbindungen wurde ebenfalls untersucht.
    Notes: Abstract Some news thiopyrimidine derivatives and complexes [4-amino-5-nitroso-6-oxo-1,2,3,6-tetrahydro-2-thio-pyrimidine (TANH), its 2-methylthio derivative (MTH), the ammonium salt ofTANH (sTANH) and six new complexes of formulas: Rh(MT)2Cl · 2H2O, Pd(MTH)2Cl2, Pt(MTH)2Cl4, Au(MTH)Cl3 Pd(TANH)2Cl2 and Au(TAN −)Cl] have been synthesized and characterized by elemental analysis, IR and1H-NMR spectroscopy techniques. The thermal behaviour of all compounds has also been studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00815316
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  • 4
    Electronic Resource
    Electronic Resource
    Thermal studies on metal complexes of 5-Nitrosopyrimidine derivatives (1986)
    Springer
    Journal of thermal analysis and calorimetry 31 (1986), S. 361-367 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Neue 4-Amino-5-nitroso-6-oxo-1,2,3,6-tetrahydro-2-thiopyrimidin-Komplexe (TANH) von Zn(II), Cd(II), Hg(II) und Hg(I) wurden dargestellt und ihr thermisches Verhalten mittels TG und DSC untersucht. Die Dehydratisierungs- und Deamminierungsenthalpien der Komplexe wurden berechnet.
    Abstract: Резюме С помощью методов ТГ и ДСК изучено термичес кое поведение новых комп лексов 4-амино-5-нитрозо-6-оксо-1,2,3,6-тетрагидро-2-ти опиримидина с цинком, кадмием, однов алентной и двухвалентной ртут ью. Вычислены энтальп ии реакций дегидратаци и и деамминирования.
    Notes: Abstract New 4-amino-5-nitroso-6-oxo-1,2,3,6-tetrahyaro-2-thiopyrimidine (TANH) complexes of Zn(II), Cd(II), Hg(II) and Hg(I) were prepared and their thermal behaviour was studied by TG and DSC techniques. The dehydration and deamination enthalpies of the corresponding complexes were calculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01911068
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  • 5
    Electronic Resource
    Electronic Resource
    Thermoanalytical studies on montmorillonite-pirimicarb complexes (1989)
    Springer
    Journal of thermal analysis and calorimetry 35 (1989), S. 1679-1686 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Mittels TG und DSC Techniken wurde die thermische Zersetzung der Zwischenschichtkomplexe von homoionischen Proben von Montmorillonit mit dem Karbamatinsektizid Pirimicarb (2-Dimethylamino-5,6-dimethylpyrimidin-4-yl-dimethylkarbamat) untersucht. Die Zersetzung der organischen Verbindung wurde mittels IR-Spektroskopie und Röntgendiffraktion verfolgt. Es wurde beobachtet, daß die thermische Zersetzung von Pirimicarb durch Adsorption an dem Ton katalysiert wird. Sowohl die Katalysatorkapazität des Tones als auch die Werte für die Zersetzungsenthalpie hängen von der Art der Zwischenschichtkationen des Montmorillonites ab.
    Abstract: Резюме Методом ТГ и ДСК изуче но термическое разложение прослоис тых комплексов гомоионных образцов монтмориллонита с карбаматпроизводны м инсектицидом пирим икарб (2-диметиламино-5,6-димет илпиримидин-4-ил-димет илкарбамат). Исследов ание прод uктов разложения было пров едено с помощью ИК спе ктроскопии и рентгенофазового а нализа. Найдено, что термичес кое разложение пирим икарба катализируется адсо рбцией его этим минералом. Каталитич еская способность ми нерала и значения энтальпий р азложения зависят от характеристик межсл оевого катиона монтм ориллонита.
    Notes: Abstract The thermal decomposition of the interlayer complexes of homoionic samples of montmorillonite with the carbamate insecticide pirimicarb (2-dimethylamino-5, 6-dimethyl pyrimidin 4-yl-dimethyl carbamate) was studied using TG and DSC techniques. The decomposition of the organic compound was followed by IR spectroscopy and X-ray diffraction. It was observed that the thermal decomposition of pirimicarb is catalyzed by adsorption by the clay. Both the catalytic capacity of the clay and the values of the decomposition enthalpies depend on the characteristics of the interlayer cation of the montmorillonite.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01912942
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  • 6
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    Unknown
    Superoxide dismutase in strains of the genus Flavobacterium: isolation and characterization (1989)
    Springer
    Details
    Publication Date: 1989-09-01
    Print ISSN: 0302-8933
    Electronic ISSN: 1432-072X
    Topics: Biology
    Published by Springer
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    PAPER CURRENT
  • 7
    Electronic Resource
    Electronic Resource
    Further analysis on the male-specific lethal mutations that affect dosage compensation in Drosophila melanogaster (1989)
    Springer
    Development genes and evolution 198 (1989), S. 34-38 
    Details
    ISSN: 1432-041X
    Keywords: Drosophila melanogaster ; Dosage compensation ; Male-specific lethal mutations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The male-specific lethal genes (msl) of D. melanogaster represent a set of genes whose functions are required for the specific X chromosome hypertranscription in males (dosage compensation). We have carried out the clonal analysis of one of those msl mutations: msl-3 b. Clones homozygous for msl-3 b are deleterious; this mutation presents cell autonomy and in the cases where msl clones appeared in sexually dimorphic regions (5th and 6th tergites) they do not show sexual transformation. Moreover, the lethal phase and the growth dynamics (measured by the protein content during larval growth) are the same for male larvae homozygous for one msl mutation (msl-1) or three msl mutations (msl-2 msl-1 mle), i.e. the msl mutations do not show additive effects. This paper considers the possible interactions between the msl genes that bring about dosage compensation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00376368
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  • 8
    Electronic Resource
    Electronic Resource
    k-Symmetric submanifolds ofR N (1987)
    Springer
    Mathematische Annalen 279 (1987), S. 169-172 
    Details
    ISSN: 1432-1807
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01456200
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  • 9
    Electronic Resource
    Electronic Resource
    k-Symmetric submanifolds ofR N (1985)
    Springer
    Mathematische Annalen 270 (1985), S. 297-316 
    Details
    ISSN: 1432-1807
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01456188
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  • 10
    Electronic Resource
    Electronic Resource
    Differentiation and wall chemistry of Agaricus bisporus vegetative and aggregated micelia (1987)
    Springer
    Archives of microbiology 148 (1987), S. 68-71 
    Details
    ISSN: 1432-072X
    Keywords: Agaricus bisporus ; Vegetative mycelium ; Aggregated mycelium ; Wall composition ; Differentiation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Changes in the chemical composition of isolated cell walls and fractions were encountered during the differentiation of vegetative and aggregated mycelia of Agaricus bisporus. Differentiation was accompanied by quantitative variations of the wall polysaccharidic components. Neutral carbohydrates were composed of glucose, galactose, mannose and xylose and glucosamine as the only amino sugar. Differences in wall chemistry were correlated to the secondary and tertiary mycelial forms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00429650
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