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  • 1
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 95-96 (Sept. 2003), p. 211-216 
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 255-257 (Sept. 1997), p. 360-362 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Biology and fertility of soils 5 (1988), S. 276-281 
    ISSN: 1432-0789
    Keywords: Metolachlor ; Biodegradation ; Soil perfusion ; Microbial metabolites ; Dechlorination ; Actinomyces spp.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Degradation of the herbicide metachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide] was studied in a soil perfusion system. After 28 days of perfusion, the 14CO2 evolved from a Virginia soil (soil A), which had been previously treated with metolachlor (Dual) for 5 years, accounted for 18.4% of the added 14C-metolachlor, while only 3.5% of the 14C was liberated as 14CO2 from a soil of the same field which had no history of Dual treatment (soil B). No 14CO2 was liberated from γ-irradiated soil A. After incubation, metolachlor constituted almost all the extractable 14C in sterile soil A, while about 20% of the added 14C extracted from non-sterile soil A consisted of products of metolachlor; 14.8% was identified as dechlorinated metolachlor. No mineralization occurred in actinomycete-inoculated sterile soil A, but 30% of the added 14C was recovered in the form of transformation products of metolachlor. Our results demonstrate clearly that microbial activity is responsible for the mineralization of metolachlor, and that degradation is enhanced in herbicide-acclimated soils.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 55 (1992), S. 297-300 
    ISSN: 1432-0630
    Keywords: 78.65.Fa ; 07.60.Fs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Multiple-angle-of-incidence (MAI) ellipsometry is used to study Ge x Si1−x /Si superlattices fabricated by a RRH/VLP-CVD system. Based on the fundamental ellipsometric equations and properties of semiconductor superlattices (SL), various parameters of SL structure, such as the sublayer thickness, complex refractive index and composition, are achieved precisely and simultaneously. The results obtained from ellipsometry are well consistent with those from growth conditions and other characterization techniques.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 71 (2000), S. 191-194 
    ISSN: 1432-0630
    Keywords: PACS: 81.60; 61.10
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. The oxidation of GaN epilayers in dry oxygen has been investigated. The GaN epilayers, about 1 μm thick, were grown on (0001) sapphire substrates by rapid thermal process/low pressure metalorganic chemical vapor deposition. Bulk θ-2θ X-ray diffraction (XRD) data showed that the slight oxidation of GaN began to occur at 800 °C for 6 h. The oxide was identified as the monoclinic β-Ga2O3. The GaN epilayers were completely oxidized at 1050 °C for 4 h or at 1100 °C for 1 h. For all samples, the strongest oxide’s peak is (11-3), and (30-6) followed. There is a rapid oxidation process in the initial stage of oxidation, and a relatively slow process followed when the temperature was over 1000 °C. The oxidation of two stages was limited by the rate of an interfacial reaction mechanism and by the diffusion mechanism, respectively. When the temperature reaches 1100 °C, the oxidation rate is very fast, which is considered as the results of the GaN decomposition at high temperature under atmosphere. The oxide layers were also observed by a scanning electron microscope, which shows a rough oxide surface and an expansion of the volume of 40%. The photoluminescence (PL) seriously influenced by the oxidation is also discussed.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Zeitschrift für Rheumatologie 59 (2000), S. S6 
    ISSN: 0340-1855
    Keywords: Schlüsselwörter Glukokortikoid-Rezeptor – Transkription – Interaktionspartner ; Key words Glucocorticoid receptor – interacting proteins – regulation of transcription – coactivators
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The glucocorticoid receptor (GR) is a hormone-dependent transcription factor that modulates gene transcription by binding to its response element, interacting with other transcription factors, contacting the basal transcription machinery and by interacting with several intermediary proteins, such as coactivators. Here we duscuss the most prominent examples for interacting proteins that belong to the basal transcription apparatus and intermediary factors. Furthermore, we describe a new class of GR-interacting proteins (GRIPs) which have been identified by a blotting technique, using a radioactively labeled GR/GRE complex as a probe to identify proteins that interact with the activated GR. Two of these GRIPs, termed GRIP170 and GRIP120, which were identified by biochemical purification and microsequencing and have turned out to play a role in modulating GR-mediated transcription, are discussed in detail.
    Notes: Zusammenfassung Glukokortikoide sind an zahlreichen Prozessen in Geweben von Säugetieren beteiligt. Sie kontrollieren Vorgänge des Energiestoffwechsels, der Differenzierung, des Wachstums, des Zelltods und der Entzündungshemmung. Der Glukokortikoidrezeptor (GR) ist ein Transkriptionsfaktor aus der Familie der Steroidhormonrezeptoren, der nach Bindung des Glukokortikoids im Zytoplasma aktiviert wird. Infolge dieser Aktivierung dissoziieren die mit dem GR komplexierten Heat-Shock-Proteine, es kommt zu einer Dimerisierung des Rezeptors, anschließender Translokation in den Kern und dort zur Bindung an spezifische palindromische DNA-Sequenzen im Promotorbereich verschiedenster Gene, die als Glukokortikoid-Response-Elemente (GRE's) bezeichnet werden. Folge dieser Bindung ist eine Expressionsmodulation des entsprechenden Gens. Es gibt Anhaltspunkte dafür, dass die Signaltransduktion des DNA-gebundenen GR zum basalen Transkriptionskomplex entweder direkt oder indirekt durch Interaktionen mit anderen Faktoren vermittelt wird. In diesem Artikel geben wir einen Überblick über die wichtigsten Interaktionspartner des GR, welche wir in drei Gruppen einteilen: Transkriptionsfaktoren, intermediäre Faktoren und Proteine, die Teil der basalen Transkriptionsmaschinerie sind. Zusätzlich beschreiben wir eine neue Klasse von GR-interagierenden Proteinen, die durch eine “Blotting”-Technik identifiziert wurden, wobei sie mit einer radioaktiv markierten GR/GRE-Sonde interagieren. Zwei dieser Proteine und deren Einfluss auf die GR-abhängige Transkription werden genauer besprochen.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 33 (1992), S. 1970-1979 
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: A spectral parameter-dependent solution of the graded Yang–Baxter equation is obtained, which is universal in the sense that it lives in Uq(gl(m/n))⊗End(V) with V the vector module of Uq(gl(m/n)). The invariants of this quantum supergroup are constructed using this solution.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 32 (1991), S. 2298-2303 
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: The generalized Gel'fand invariants for an arbitrary quantum group are explicitly constructed, and their eigenvalues in any irreducible representation are computed. These invariants enable one to develop characteristic identities for the quantum group, and as a natural application, these identities are used to construct projection operators for tensor products of representations. To illustrate the general theory, the quantum group Uq(gl(m)) is studied in detail.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 32 (1991), S. 2605-2613 
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: It is shown that from each self-dual representation of a quantum supergroup with nonvanishing q-superdimension, a graded representation of the Temperley–Lieb algebra can be constructed, which, in turn, gives rise to a solution of the graded Yang–Baxter equation. As examples, the vector irrep of Uq (osp(M/2n)) and all the finite-dimensional irreps of Uq (osp(1/2)) are studied, and the corresponding graded R-matrices are obtained explicitly. A general method is also given to obtain link polynomials from graded R-matrices. Applied to the ones associated with graded representations of the Temperley–Lieb algebra, the method yields the Jones polynomial.
    Type of Medium: Electronic Resource
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