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  • 1
    Electronic Resource
    Electronic Resource
    Networks and innovation: sustainable technologies in Scottish social housing (2004)
    Oxford, UK : Blackwell Publishing
    R & D management 34 (2004), S. 0 
    Details
    ISSN: 1467-9310
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: The process of innovation often involves the participation of several firms and organisations in a network. This paper improves our understanding of the role of inter-organisational relations in such networks. It assesses how sustainable technologies in the Scottish social housing sector are introduced and diffused. Drawing on detailed interviews, the paper shows that despite policy initiatives by the National Housing Agency to encourage sustainable technologies and processes, a number of factors related to the organisational structure of the construction industry militate against the achievement of this objective. The different aims of the parties involved in the construction chain may not be easily reconciled and traditional approaches to construction may reinforce these differences, hindering efforts to introduce innovation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-9310.2004.00342.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Biosynthesis of trichothecene mycotoxins: cell-free epoxidation of a trichodiene derivative (1991)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 81 (1991), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract: A cell-free enzyme system from cultures of Fusarium culmorum catalyses the 12,13-epoxidation of semi-synthetic 9β, 10β-epoxytrichodiene to 9β, 10β;12,13-diepoxytrichodiene. This enzyme activity may be involved in the biosynthesis of trichothecene mycotoxins and since the 12,13-epoxide is known to be essential for toxicity, the enzyme activity probably confers the toxic properties associated with this group of mycotoxins. The epoxidase requires NADPH and molecular oxygen, is inhibited by carbon monoxide, and thus appears to be a cytochrome P-450-dependent mono-oxygenase. Whole cell cultures of the fungus carry out the same biotransformation, and in addition hydroxylate the diepoxide product at position 3, yielding 3α-hydroxy-9β,10β;12,13-diepoxytrichodiene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1991.tb04765.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Production of tumour-inhibitory lignans in callus cultures of Podophyllum hexandrum (1990)
    Springer
    Plant cell reports 9 (1990), S. 382-385 
    Details
    ISSN: 1432-203X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Callus cultures have been established from root explants of aseptically-grown Podophyllum hexandrum seedlings. A fully defined medium based on Gamborg's B5 salts supplemented with 2/4-dichlorophenoxyacetic acid, gibberellic acid and 6-benzylaminopurine was effective for both initiation and sustained growth of callus tissue. Cultures produced anticancer lignans podophyllotoxin, 4′-demethylpodophyllotoxin and podophyllotoxin 4-O-glucoside at levels similar to those found in the expiant material as assayed by high performance liquid chromatography. The relative proportions of podophyllotoxin and 4′-demethyl-podophyllotoxin were markedly influenced by the presence of plant growth regulators. Particularly high levels of podophyllotoxin were associated with growth regulator induced tissue differentiation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00232404
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Degradation of 3,9-dimethoxypterocarpan and medicarpin by Fusarium fungi (1981)
    Springer
    Archives of microbiology 130 (1981), S. 381-384 
    Details
    ISSN: 1432-072X
    Keywords: O-demethylation ; Pterocarpans ; Isoflavans ; Fusarium ; Gibberella ; Phytoalexins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Fusarium sporotrichioides and Gibberella saubinetti O-demethylate 3,9-dimethoxypterocarpan to 3-methoxy-9-hydroxypterocarpan and then 3,9-dihydroxypterocarpan. F. anguioides Sherb., F. avenaceum and F. graminearum convert the same substrate to a mixture of 3-methoxy-9-hydroxypterocarpan and 3-hydroxy-9-methoxypterocarpan. Induction of pterocarpan degradation by pisatin in F. avenaceum leads to preferential conversion of 3,9-dimethoxypterocarpan to 3-hydroxy-9-methoxypterocarpan (medicarpin) and the isoflavan vestitol. The data are discussed with respect to phytoalexin degradation by phytopathogenic Fusarium fungi.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00414604
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    Paper (German National Licenses)
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