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  • Articles  (1,733)
  • Articles: DFG German National Licenses  (1,733)
  • 2005-2009  (19)
  • 1990-1994  (1,008)
  • 1975-1979  (706)
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  • Articles  (1,733)
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  • 1
    Electronic Resource
    Electronic Resource
    COMPANY ASSET REVALUATIONS AND INFLATION IN AUSTRALIA, 1950 to 1975 (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of business finance & accounting 5 (1978), S. 0 
    Details
    ISSN: 1468-5957
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1468-5957.1978.tb01057.x
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  • 2
    Electronic Resource
    Electronic Resource
    Detection of Ginkgolides by Thin-Layer Chromatography (1991)
    s.l. : American Chemical Society
    Journal of natural products 54 (1991), S. 624-625 
    Details
    ISSN: 1520-6025
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/np50074a049
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  • 3
    Electronic Resource
    Electronic Resource
    Nitrogenase activity in rhizobia in absence of plant host (1975)
    [s.l.] : Nature Publishing Group
    Nature 256 (1975), S. 407-409 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] To characterise these factors we tested callus cultures of several plant species, and found carrot and rice most effective. Extracts of carrot cells, or carrot root, when added to LNB5 medium7 permitted the expression of nitrogenase (C2H2) activity by cowpea Rhizobium 32H1 grown in the absence of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/256407a0
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  • 4
    Electronic Resource
    Electronic Resource
    INHERITED ‘MOSAICISM’ WITHIN THE ABO BLOOD GROUP SYSTEM (1978)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 5 (1978), S. 0 
    Details
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: A family with examples of the rare condition known as ‘inherited mosaicism affecting the ABO blood groups’ has been studied. In this family there were five examples of Bmos:O mosaicism. Blood group gene-specified transferase estimations were studied in this condition for the first time. In ‘affected' members, levels of B gene-specified transferease were low, and amounted to only 7-10% of the activity of a normal control. It is proposed that Bmos is correctly classified as a new form of weak B.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.1978.tb00649.x
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  • 5
    Electronic Resource
    Electronic Resource
    CAD(SUPER Sda) IN A BRITISH FAMILY WITH EASTERN CONNECTIONS: A NOTE ON THE SPECIFICITY OF THE DOLICHOS BIFLORUS LECTIN (1976)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 3 (1976), S. 0 
    Details
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Cad, Sd(a++) or Super Sda is a rare, inherited, dominant blood group character which is of much interest, not only with regard to problems in pretransfusion tests (erythrocyte polyagglutination) but also in the field of lectin specificity. We have studied this blood group character in a British family with Eastern connections and present a brief account of its serological and clinical importance. Most persons are Sd(a+) but there is a wide distribution of antigen strength, ranging from ordinary Sd(a+) to Cad. Most persons also have weak anti-Sda in their serum; this is ordinarily of no clinical importance, but could cause problems if Cad bloods are transfused. The chief structural determinant of Cad specificity is N-acetyl-d-galactosamine in α-linked position, yet it is clearly distinguishable by use of appropriate lectins from other blood group antigens, A and Tn, which also have this acetyl-hexosamine as their chief structural determinant. A method for the rapid identification of Cad, applicable to all ABO groups, is described. The lectin of Dolichos biflorus, which is specific for N-acetyl-d-galactosamine in α-linked position, reacts strongly with A(A1), Tn and Cad cells, its action on Cad cells being much the strongest. Absorption-elution studies show that one and the same lectin reacts with both A1 and Tn cells. Absorption with Cad cells abolishes activity for A1, Tn and Cad cells; whereas absorption with A1 or Tn cells leaves activity for Cad. This does not necessarily indicate that anti-Cad is a separate component since the same result can be obtained by simply diluting the Dolichos reagent. However, eluates from Cad cells react only with Cad cells, whereas eluates from A1 or Tn cells react with A1, Tn and Cad cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.1976.tb00587.x
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  • 6
    Electronic Resource
    Electronic Resource
    Structure and reactivity of type-I copper sites (1990)
    Springer
    BioMetals 3 (1990), S. 67-72 
    Details
    ISSN: 1572-8773
    Keywords: Electron transfer ; Electron flow ; Substrate conversion ; Blue copper proteins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Summary Biological electron transfer is not well understood. The question is addressed in this contribution with reference to the so-called blue copper proteins, each of which has a single copper atom at its active centre. The redox activity (as probed by the electron self exchange reaction) of the Cu centre seems not to be affected. The electron self exchange reaction is known to proceed through His-117, and the hydrophobic patch is most important in the formation of the azurin/azurin encounter complex. Ph effects have not been observed on the three-dimensional structure ofA. denitrificans azurin, which may indicate that if present at all these have no direct physiological implications. Mutants are in process of construction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01179505
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  • 7
    Electronic Resource
    Electronic Resource
    Characteristics of magnet vibration above the high-T c superconductors (1992)
    Springer
    Journal of materials science 11 (1992), S. 1562-1565 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00740833
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  • 8
    Electronic Resource
    Electronic Resource
    Production of indole alkaloids by surface immobilized C. roseus cells (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 35 (1990), S. 660-667 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A technique was developed to surface immobilize plant cells and was scaled up in laboratory size bioreactors. This technique was shown not to hinder the biosynthetic potential of Catharanthus roseus immobilized cells and to induce a partial release (300 μg/L) of serpentine into the culture medium contrary to suspension cultured cells. The release pattern seemed to follow the biosynthesis trends of the product. This release mechanism could be stimulated by a factor of 10 within 2 h by increasing the pH of the culture from 5.0 to 5.5.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260350703
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  • 9
    Electronic Resource
    Electronic Resource
    Development of bioreactors for the culture of surface immobilized plant cells (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 35 (1990), S. 702-711 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The scaleup of the technique of plant cell surface immobilization was performed successfully in specifically designed laboratory size bioreactors. The immobilizing matrix was formed into a vertically wound spiral providing for a high immobilizing area-to-volume ratio (0.8-1.2 cm-1). A modified airlift and a mechanically stirred vessel delivered a best bioreactor performance characterized by low biomass frothing and highly efficient plant cell attachment and retention (≥96%). The growth of Catharanthus roseus cells investigated in these bioreactors was found not to be mass transfer limited. It required mild mixing and aeration levels (kLa ∼ 10-15 h-1). The biomass formation pattern of surface immobilized plant cells generally exhibited a linear growth phase followed by a stationary phase characterized by the presence of residual carbohydrates in the medium, contrary to suspension cultures. This behavior was found to depend on the plant cell type and/or line cultured, as well as on the inoculum age. The space restriction and unidirectional growth of the SIPC biofilm combined with the limited availability of essential intracellular nutrients rapidly accumulated from the medium by the stationary phase inoculated plant cells all likely contributed to the culture behavior.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260350707
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  • 10
    Electronic Resource
    Electronic Resource
    Importance deTrichogramma sp. [Hym.: Trichogrammatidae] dans la biocoenose D'Euselasia eucerus [Lep.: Riodinidae] ravageur de L'eucalyptus (1977)
    Springer
    BioControl 22 (1977), S. 193-198 
    Details
    ISSN: 1573-8248
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary Some biological and ecological aspects ofEuselasia eucerus Hewitson, an eucalyptus pest in Brazil, under field and laboratory conditions are presented. The study of its eggs and pupae revelaed that 80% of pupation occur in the undergrowth (up to 1 m high) and 20% in the eucalyptus (14 m high), 90% of which occurred up to a height of 6 m. Eggs are laid only on the eucalyptus leaf, and most or them (75%) are found between the heights of 2 and 8 m. Between 0 and 10 m, 31.6% of the eggs were parasited byTrichogramma sp., and above 10 m the parasitism lowered to 12%. Such a high degree of parasitism in natural conditions suggests the utilisation ofTrichogramma to combat that pest.
    Notes: Résumé Euselasia eucerus Hewitson est un ravageur de l'eucalyptus au Brésil. Certains aspects de sa biologie et de son éthologie ont été abordés sur le terrain et au laboratoire — Une analyse de la distribution verticale des chrysalides et des pontes montre que 80% de la nymphose se fait dans le sous-bois (jusqu'à 1 m de hauteur) et que les 20% restants se fait sur les eucalyptus (de 14 m de hauteur en moyenne). De ces 20%, 90% se fixent jusqu'à 6 m de hauteur. Quant à la ponte, elle se fait sur les feuilles d'eucalyptus, avec 75% entre 2 et 8 m. 31,6% des œufs observés entre 0 et 10 m sont parasités parTrichogramma sp., ce pourcentage diminuant à 12% au-dessus de 10 m. Ce niveau élevé de parasitisme dans la nature nous suggère l'utilisation du trichogramme pour combattre ce défoliateur.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02377843
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