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  • Articles  (34)
  • Springer  (30)
  • Blackwell Publishing Ltd  (2)
  • Cambridge University Press  (2)
  • ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften, Leibniz-Informationszentrum Wirtschaft Kiel, Hamburg
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  • Articles  (34)
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  • 1
    Electronic Resource
    Electronic Resource
    MARKTMACHT, GEWERKSCHAFTEN UND LOHNHÖHE IN DER INDUSTRIE DER BUNDESREPUBLIK DEUTSGHLAND (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Kyklos 33 (1980), S. 0 
    Details
    ISSN: 1467-6435
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Sociology , Economics
    Notes: Interindustrial wage differences in West Germany are explained by trade unions’ pressure (unionism, strike intensity), sellers’ market power (concentration, profits, vertical integration, cartels, and international trade), and fluctuations among labour force. The inverse relationship between concentration and wages can, theoretically, be traced back to monopoly and it is suggested that concentration should primarily be considered as an indicator of monopoly power. Vertical integration of successive stages of production within a single firm appears to entail efficiency gains on balance whereas in the case of cartels of the kind permitted in West Germany, monopolizing and efficiency raising effects appear to just cancel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-6435.1980.tb02633.x
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  • 2
    Electronic Resource
    Electronic Resource
    N2-fixation and complementary chromatic adaptation in non-heterocystous cyanobacteria from Lake Constance (2001)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology ecology 37 (2001), S. 0 
    Details
    ISSN: 1574-6941
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Non-heterocystous, mostly filamentous cyanobacteria were isolated from the crust of stones, from the periphyton of two macrophytes from the littoral zone and from the pelagic environment of Lake Constance. All isolates were cultivated as unialgal strains. DNA analysis by restriction fragment length polymorphism with the psbA gene probe revealed high genetic diversity among the strains from the littoral zone. For all genotypes, the occurrence of the nifH gene encoding a nitrogenase subunit and of genes encoding subunits of phycoerythrin and phycocyanin were tested by Southern blot hybridization. In addition, the isolates were investigated for their ability for complementary chromatic adaptation (CCA) and for anaerobic N2-fixation. With respect to these characteristics, all cyanobacteria included in this study were assigned to four different types: (1) strains without the capability to fix N2 or to perform CCA of the group III type (CCA III); (2) strains which show both features; (3) strains with the ability to fix nitrogen, but that do not show any CCA III; and (4) strains that produce phycoerythrin, but without the capacity for CCA III or N2-fixation. By examining the frequency distribution of isolates, these types were shown to prefer different habitats. While cyanobacterial strains capable of N2-fixation, but without CCA III, were mainly obtained from stone crusts in the supralittoral zone, those with the potential for N2-fixation as well as for CCA III were largely isolated from submersed macrophytes. Cyanobacteria that produce phycoerythrin, but do not perform CCA III or N2-fixation, were found in the pelagic zone only.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6941.2001.tb00859.x
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  • 3
    Electronic Resource
    Electronic Resource
    Fine structure of OXI1, the mitochondrial gene coding for subunit II of yeast cytochrome c oxidase (1979)
    Springer
    Current genetics 1 (1979), S. 75-83 
    Details
    ISSN: 1432-0983
    Keywords: Genetic mapping ; Mutant polypeptides ; Direction of translation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Genetic and biochemical studies have been performed with 110 mutants which are defective in cytochrome a·a3 and map in the regions on mit DNA previously designated OXI1 and OXI2. With 88 mutations allocated to OXI1 fine structure mapping was achieved by the analysis of rho − deletions. The order of six groups of mutational sites (A 1, A2, B 1, B2, C 1, C2) thus determined was confirmed by oxi i x oxi j recombination analysis. Analysis of mitochondrially translated polypeptides of oxil mutants by SDS-polyacrylamide electrophoresis reveals three classes of mutant patterns: i) similar to wild-tpye (19 mutants); ii) lacking SU II of cytochrome c oxidase (53 mutants); iii) lacking this subunit and exhibiting a single new polypeptide of lower Mr (16 mutants). Mutations of each of these classes are scattered over the OXI1 region without any detectable clustering; this is consistent with the assumption that all oxil mutations studied are within the same gene. New polypeptides observed in oxil mutants of class iii) vary in Mr in the range from 10,500 to 33,000. Those of Mr 17,000 to 33,000 are shown to be antigenically related to subunit II of cytochrome c oxidase. Colinearity is established between the series of new polypeptides of Mr values increasing from 10,500 to 31,500 and the order of the respective mutational sites on the map, e.g. mutations mapping in A 1 generate the smallest and mutations mapping in C2 the largest mutant fragments. From these data we conclude that i) all mutations allocated to the OXI1 region are in the same gene; ii) this gene codes for subunit II of cytochrome c oxidase; iii) the direction of translation is from CAP to 0X12. Out of 19 mutants allocated to OXI2 three exhibit a new polypeptide; these and all the other oxi2 mutants lack subunit III of cytochrome oxidase. This result provides preliminary evidence that the OXI2 region harbours the structural gene for this subunit III.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00413308
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  • 4
    Electronic Resource
    Electronic Resource
    Market structure and the labour market in West German industries — A contribution towards interpreting the structure-performance relationship (1981)
    Springer
    Journal of economics 41 (1981), S. 97-109 
    Details
    ISSN: 1617-7134
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Conclusion Concerning the interpretation of the positive association between seller concentration and profitability we suggest that concentration should primarily be considered as an indicator of monopoly power. This proposition is based on the finding of an inverse relationship between concentration and wages which, theoretically, can be traced back to monopoly. By the same standard of evaluation, vertical integration of successive stages of production within a single firm appears to yield efficiency gains on balance whereas in the case of cartels of the kind permitted in West Germany monopolizing and efficiency raising effects appear to just cancel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01283111
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  • 5
    Electronic Resource
    Electronic Resource
    Expression of the split gene COB in yeast mtDNA (1980)
    Springer
    Current genetics 1 (1980), S. 155-161 
    Details
    ISSN: 1432-0983
    Keywords: Intervening sequence mutations ; RNA blotting ; Transcript hybridization ; RNA processing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Electrophoretic separation of mitochondrial RNA followed by hybridization with restriction fragments of mtDNA has been used to identify transcripts of the split gen COB which codes for apocytochrome b. In wild type a major transcript of 18S is detected besides a 10S RNA and a series of transcripts with electrophoretic mobilities higher than 18S. Mutations in coding sequences do not significantly alter this transcript pattern. In contrast, mutations in intervening sequences give rise to different patterns: The 18S RNA, the putative messenger for apocytochrome b, is lacking; depending on the intervening sequence affected by mutation, one or the other of the larger transcripts (23S, 24S, 32S, 34S) is accumulated instead. In most mutants a 10S RNA species is present; it has not been detected, however, in case of a small cluster of mutations which lead to the accumulation of the largest transcript (34S) observed, which most likely contains all coding and intervening sequences of the split gene COB. These results suggest a pathway of splicing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00446961
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  • 6
    Electronic Resource
    Electronic Resource
    Expression of the Saccharomyces cerevisiae CYT2 gene, encoding cytochrome c1 heme lyase (1994)
    Springer
    Current genetics 25 (1994), S. 291-298 
    Details
    ISSN: 1432-0983
    Keywords: Cytochrome c 1 ; Cytochrome c 1 heme lyase ; GRF2p ; Glucose repression ; HAPp ; Saccharomyces cerevisiae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In this paper we examine the expression of the Saccharomyces cerevisiae CYT2 gene, which encodes cytochrome c 1 heme lyase. This enzyme is required for covalent attachment of heme to apocytochrome c 1, a subunit of the mitochondrial respiratory chain. Transcription of the 1-kb CYT2 mRNA initiates at four prominent sites at a distance of 52–225 bp in front of the AUG start codon. The level of CYT2 mRNA is not influenced by the presence or absence of oxygen or of heme, but it is subject to carbonsource control. The concentration of the CYT2 mRNA is significantly reduced in glucose-grown cells as compared to cells grown under non-repressing conditions. Neither the HAPp activator proteins nor MIG1p, a repressor protein involved in glucose repression, seem to mediate this effect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00351480
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  • 7
    Electronic Resource
    Electronic Resource
    Rapid reactions of spruce cells to elicitors released from the ectomycorrhizal fungus Hebeloma crustuliniforme, and inactivation of these elicitors by extracellular spruce cell enzymes (1996)
    Springer
    Planta 198 (1996), S. 118-126 
    Details
    ISSN: 1432-2048
    Keywords: Ectomycorrhiza ; Elicitor inactivation ; Elicitor-induced reaction ; Hebeloma — Picea cells ; Signal transduction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Elicitors released from hyphae or cell walls of the ectomycorrhizal fungus Hebeloma crustuliniforme (Bull. ex Fries.) Quél. induced in suspension-cultured cells of Picea abies (L.) Karst. a set of fast reactions: (i) an immediate efflux of Cl− into the medium, followed by a K+ efflux; (ii) an influx of Ca2+ (measured as accumulation of 45Ca2+ in the cells); (iii) a phosphorylation of a 63-kDa protein and dephosphorylation of a 65-kDa protein (detectable by 4 min after elicitor application); (iv) an alkalinization of the medium, and (v) a transient synthesis of H2O2. The removal of extracellular Ca2+ by EGTA delayed the elicitor-induced alkalinization. A further reduction of this response could be achieved by TMB-8 an inhibitor of Ca2+ release from intracellular stores. Moreover, the inhibition of protein kinase activity by staurosporine prevented the extracellular alkalinization completely. However, the effectiveness of the elicitors in inducing the extracellular alkalinization was strongly impaired by constitutively secreted enzymes of spruce cells which cleaved the elicitors to inactive fragments. It is suggested that in ectomycorrhizae the efficacy of elicitors released from fungal cell walls is controlled by apoplastic enzymes of the host; the plant itself is able to reduce the activity of fungal elicitors on their way through the plant cell wall. But those elicitors which finally reach the plasma membrane of host cells induce reactions that are similar to the early defense reactions in plant-pathogen interactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00197594
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  • 8
    Electronic Resource
    Electronic Resource
    Nitro- und Aminoderivate des α-Naphtochinolins und ihre Oxydation zur 7,8-Chinolindicarbonsäure (1906)
    Springer
    Monatshefte für Chemie 27 (1906), S. 315-340 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01527224
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  • 9
    Electronic Resource
    Electronic Resource
    Precision measurement of the conversion electron spectrum of83m Kr with a solenoid retarding spectrometer (1992)
    Springer
    The European physical journal 342 (1992), S. 71-78 
    Details
    ISSN: 1434-601X
    Keywords: 27.50.+e ; 29.30.Dn
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract This paper reports on precision measurements of conversion lines in the decay of83mKr with nuclear transition energies of 32.1 keV and 9.4 keV, respectively. The spectra were taken from a submonolayer surface of83m Kr frozen onto a cold backing, using the new Mainz solenoid retarding spectrometer. The high luminosity and resolution of this instrument enables the observation of all allowed conversion lines up to theN-shell and to fully separate the elastic component from inelastic satellites. The combined analysis of the data yields the transition energiesE y=32151.5±1.1 eV and 9405.9±0.8 eV, respectively. The experiment served also to pilot the application of this spectrometer to the question of a finite neutrino rest mass, searched for in theβ-decay spectrum of tritium and to problems in precision electron spectroscopy in general.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294491
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  • 10
    Electronic Resource
    Electronic Resource
    Additive cytotoxicity of adriamycin and a naturally occurring growth inhibitor extracted from bovine aorta (1985)
    Springer
    Investigational new drugs 3 (1985), S. 23-29 
    Details
    ISSN: 1573-0646
    Keywords: growth inhibitor ; A-10 ; carcinoma ; mammary ; antineoplastic chemotherapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract A factor of nominal molecular weight 6K–10K Daltons, isolated from bovine aorta, has previously been shown to inhibit neovascularization and tumor growth in vivo and the growth of some tumor cells as well as endothelial cells in culture. This factor, termed A-10, was tested alone and in combination with Adriamycin against TA3Ha mammary adenocarcinoma cells in tissue culture. It was found to have cytotoxicity additive to that of Adriamycin in inhibiting the growth of these cells. In vitro and animal studies show that the sequence of Adriamycin → A-10 is superior to either agent alone in delaying the appearance of palpable tumors after subcutaneous injection of 105 pre-treated tumor cells in the tail of strain A mice. While the growth rate of the primary tumor was not affected by such treatment, survival was prolonged to a greater degree by the this sequence than by either of these agents used alone. A-10 treatment reduced the number of metastases to the adrenal gland but not to lung, liver, or lymph nodes. It did, however, reduce the size of metastases to para-aortic lymph nodes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00176820
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