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  • Springer  (3)
  • AGU (American Geological Union)
  • Nature Publishing Group
  • 2005-2009
  • 1995-1999  (3)
  • 1999  (3)
Collection
Publisher
Years
  • 2005-2009
  • 1995-1999  (3)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Policy sciences 32 (1999), S. 13-38 
    ISSN: 1573-0891
    Source: Springer Online Journal Archives 1860-2000
    Topics: Political Science , Economics
    Notes: Abstract As our understanding of human impacts on the environment has increased, it has become clear that we need to move toward a closed-loop industrial society in order to avoid undesirable health and ecosystem consequences. Achievement of this goal depends on radical technological innovation in both products and processes. This paper explores how to design public policy mechanisms to stimulate rather than impede pollution-preventing technological innovation. It begins with a discussion of the role of government in civilian technology development and diffusion. It then sets out six design criteria for policy to promote ‘green’ technology innovation. Based on this set of design criteria, the article assesses the potential and limitations of current U.S. policy approaches to stimulate technological innovation that moves us toward a minimal waste society. The main conclusions of this assessment are as follows. Over the past decade, the U.S. environmental policy system has experienced a variety of reforms and new initiatives, many aimed directly at promoting environmentally-friendly technological change. The strengths of these reforms are to increase the information that the private sector has about the magnitude and cost of their environmental impacts and to allow greater flexibility in the technologies that firms choose to meet environmental regulations and goals. Because of these reforms, firms are likely to undertake technological innovation for the environment in situations with clear short-term economic benefits, i.e. to capture the much heralded win-win potential of environmental regulation. However, these reforms have significant weaknesses as well. Unless policy provides stronger political or economic incentives and clearer signals about future environmental performance requirements, we are unlikely to be able to drive technological innovation in industries where the pay-off is more longterm or uncertain, and thus will make only limited progress toward the goal of a minimal waste society.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International journal of theoretical physics 38 (1999), S. 115-130 
    ISSN: 1572-9575
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Intrinsic microphysical irreversibility is thetime asymmetry observed in exponentially decayingstates. It is described by the semigroup generated bythe Hamiltonian H of the quantum physical system, not by the semigroup generated by a Liouvillian Lwhich describes the irreversibility due to the influenceof an external reservoir or measurement apparatus. Thesemigroup time evolution generated by H is impossible in the Hilbert space (HS) theory, which allowsonly time-symmetric boundary conditions and a unitarygroup time evolution. This leads to problems with decayprobabilities in the HS theory. To overcome these and other problems (nonexistence of Dirac kets)caused by the Lebesgue integrals of the HS, one extendsthe HS to a Gel'fand triplet, which contains not onlyDirac kets, but also generalized eigenvectors of the self-adjoint H with complex eigenvalues(ER – iΓ/2) and a Breit-Wignerenergy distribution. These Gamow statesψG have a time-asymmetric exponentialevolution. One can derive the decay probability of the Gamow state into the decay productsdescribed by Λ from the basic formula of quantummechanics ℘(t) = Tr(|ψG ›‹ψG|Λ), which in HS quantum mechanicsis identically zero. From this result one derives the decay rate ℘(t) and all the standard relations between℘(0), Γ, and the lifetimeτR used in the phenomenology of resonancescattering and decay. In the Born approximation oneobtains Dirac's Golden Rule.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Plant systematics and evolution 216 (1999), S. 231-241 
    ISSN: 1615-6110
    Keywords: Asteraceae ; Senecioneae ; Blennospermatinae ; Abrotanella ; Blennosperma ; Crocidium ; Ischnea ; Flavonoids ; phytogeography ; disjunct ; pacific
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The flavonoid profiles of seven species ofAbrotanella and one species ofIschnea have been shown to be based upon kaempferol 3- and quercetin 3-O-glycosides and a delphinidin glycoside. Glucosides, glucuronides, arabinosides, diglucosides, and rutinosides of the flavonols were identified. The profile ofIschnea consisted solely of quercetin 3-O-glucoside and 3-O-arabinoside whereas the profiles of theAbrotanella species were more varied. Although infraspecific variation was not investigated in this study, the flavonoid chemistry of the two genera is in accordance with the flavonoid variation described for other members ofSenecioneae which are primarily flavonol producers. Based on the known phylogeny and biogeography, the flavonoid distribution from the perspective of long-distance dispersals across the Pacific is discussed. Such events should lead to genetic bottle-neck situations and depauperate flavonoid profiles. A summary of current flavonoid knowledge in theSenecioneae is supplied.
    Type of Medium: Electronic Resource
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