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  • Springer  (3)
  • University of Chicago Press  (1)
  • Blackwell Science Ltd
  • Ovid Technologies
  • 1985-1989  (4)
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  • 1
    Publication Date: 1988-12-01
    Print ISSN: 0022-3808
    Electronic ISSN: 1537-534X
    Topics: Economics
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  • 2
    ISSN: 1615-6102
    Keywords: Chloroplast ; cpDNA ; DAPI ; Etioplast ; Nucleoids ; Phaseolus vulgaris
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The location of DNA containing nucleoids has been studied in greening bean (Phaseolus vulgaris L.) etioplasts using electron microscopy of thin sections and the staining of whole leaf cells with the fluorochrome DAPI. At 0 hours illumination a diffuse sphere of cpDNA surrounds most of the prolamellar body. It appears to be made up of a number of smaller nucleoids and can be asymmetric in location. The DNA appears to be attached to the outside of the prolamellar body and to prothylakoids on its periphery. With illumination the nucleoid takes on a clear ring-like shape around the prolamellar body. The maximum development of the ring-like nucleoid at 5 hours illumination is associated with the outward expansion of the prolamellar body and the outward growth of the prothylakoids. At 5 hours the electron transparent areas lie in between the prothylakoids radiating out from the prolamellar body. Between 5 hours and 15 hours observations are consistent with the growing thylakoids separating the nucleoids as the prolamellar body disappears and the chloroplast becomes more elongate. At 15 hours the fully differentiated chloroplast has discrete nucleoids distributed throughout the chloroplast with evidence of thylakoid attachment. This is the SN (scattered nucleoid) distribution ofKuroiwa et al. (1981) and is also evident in 24 hours and 48 hours chloroplasts which have more thylakoids per granum. The changes in nucleoid location occur without significant changes in DNA levels per plastid, and there is no evidence of DNA or plastid replication. The observations indicate that cpDNA partitioning in dividing SN-type chloroplasts could be achieved by thylakoid growth and effectively accomplish DNA segregation, contrasting with envelope growth segregating nucleoids in PS-type (peripheral scattered nucleoids) chloroplasts. The influence of plastid development on nucleoid location is discussed.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Public choice 52 (1987), S. 273-297 
    ISSN: 1573-7101
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract This paper models balanced-budget redistribution between socio-economic groups as the outcome of electoral competition between two political parties. Equilibrium is unique in the present model, and a sufficient condition for existence is given, requiring that there be enough ‘stochastic heterogeneity’ with respect to party preferences in the electorate. The validity of Hotelling's ‘principle of minimum differentiation’, and of ‘Director's Law’, are examined under alternative hypotheses concerning administrative costs of redistributions, and voter's possibilities both of abstaining from voting and of becoming campaign activists for one of the parties. The policy strategy of expected-plurality maximization is contrasted with the strategy of maximizing the probability of gaining a plurality. Incomes are fixed and known, so lump-sum taxation is feasible. However, constraints on tax/transfer differentiation between individuals are permitted in the analysis.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Atlantic economic journal 14 (1986), S. 122-122 
    ISSN: 1573-9678
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Type of Medium: Electronic Resource
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