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See detailThe electrical behaviour of GaAs MESFETs formed on high and low temperature GaAs buffer layers
Borouriand, Farahd; Jostock, Markus UL; Hopkinson, M et al

in High Performance Electron Devices for Microwave and Optoelectronic Applications (1997, November 24)

Comparisons have been made between the channel currents in GaAs hESFETs prepared on GaAs buffer layers prepared at normal and low temperatures. All devices made on LT buffer layers had saturated channel ... [more ▼]

Comparisons have been made between the channel currents in GaAs hESFETs prepared on GaAs buffer layers prepared at normal and low temperatures. All devices made on LT buffer layers had saturated channel currents which were about 20% of similar devices on a normal buffer. An attempt was made to remove Ga vacanciies from the LT buffer by a high temperature anneal step before the epitaxial layer was prepared. This had no effect in increasing the channel current. In all cases the pinchoiy voltage was unchanged indicating constancy of the channel thickness and donor concentration. It is concluded that the loss of current is due to a loss of mobile charge through trapping. [less ▲]

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See detailNonlinear filtering with a high signal-to-noise ratio in the correlated case
Schiltz, Jang UL

Scientific Conference (1997, November 04)

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See detailQualitätsforderung für den Werterziehung im Primärschulunterricht
Weber, Jean-Marie UL

Article for general public (1997)

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See detailSpecific activation related to proper name retrieval associated with faces
Dubois, S; Rossion, B; Schiltz, Christine UL et al

Poster (1997, October)

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See detailNonlinear filtering with a high signal-to-noise ratio
Schiltz, Jang UL

Scientific Conference (1997, September 06)

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See detailEducational Attainment as a Function of Delayed Acculturation
Rivas, Salvador UL

Scientific Conference (1997, August)

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See detailOn nonstrict means
Fodor, János; Marichal, Jean-Luc UL

in Aequationes Mathematicae (1997), 54(3), 308-327

The general form of continuous, symmetric, increasing, idempotent solutions of the bisymmetry equation is established and the family of sequences of functions which are continuous, symmetric, increasing ... [more ▼]

The general form of continuous, symmetric, increasing, idempotent solutions of the bisymmetry equation is established and the family of sequences of functions which are continuous, symmetric, increasing, idempotent, decomposable is described. [less ▲]

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See detailThe pipecolate-incorporating enzyme for the biosynthesis of the immunosuppressant rapamycin: Nucleotide sequence analysis, disruption and heterologous expression of rapP from Streptomyces hygroscopicus.
König, Ariane UL; Schwecke, T.; Molnár, I. et al

in European Journal of Biochemistry (1997), 247(2), 526-534

An open reading frame (rapP) encoding the putative pipecolate-incorporating enzyme (PIE) has been identified in the gene cluster for the biosynthesis of rapamycin in Streptomyces hygroscopicus. Conserved ... [more ▼]

An open reading frame (rapP) encoding the putative pipecolate-incorporating enzyme (PIE) has been identified in the gene cluster for the biosynthesis of rapamycin in Streptomyces hygroscopicus. Conserved amino acid sequence motifs for ATP binding, ATP hydrolysis, adenylate formation, and 4'-phosphopantetheine attachment were identified by sequence comparison with authentic peptide synthetases. Disruption of rapP by phage insertion abolished rapamycin production in S. hygroscopicus, and the production of the antibiotic was specifically restored upon loss of the inserted phage by a second recombination event. rapP was expressed in both Escherichia coli and Streptomyces coelicolor, and recombinant PIE was purified to homogeneity from both hosts. Although low-level incorporation of [14C]beta-alanine into recombinant PIE isolated from E. coli was detected, formation of the covalent acylenzyme intermediate could only be shown with the PIE from S. coelicolor, suggesting that while the recombinant PIE from S. coelicolor was phosphopantetheinylated, only a minor proportion of the recombinant enzyme from E. coli was post-translationally modified. [less ▲]

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See detailSchüler diskutieren über den Sinn des Lebens
Weber, Jean-Marie UL

Article for general public (1997)

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See detailOn nonstrict means
Fodor, János; Marichal, Jean-Luc UL

in Proc. of the Int. Conf. on Methods and Applications of Multicriteria Decision Making (ICMAM'97), Mons, Belgium, May 14-16, 1997 (1997, May)

The general form of continuous, symmetric, increasing, idempotent solutions of the bisymmetry equation is established and the family of sequences of functions which are continuous, symmetric, increasing ... [more ▼]

The general form of continuous, symmetric, increasing, idempotent solutions of the bisymmetry equation is established and the family of sequences of functions which are continuous, symmetric, increasing, idempotent, decomposable is described. [less ▲]

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See detailOn Sugeno integral as an aggregation function
Marichal, Jean-Luc UL

Presentation (1997, April)

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See detailCarte blanche - L"affaire Clabecq : légalisme contre légitimité ?
Corbisier, Isabelle UL

in Information & Documentation Juridiques (1997)

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See detailBioéthique et culture démocratique
Sosoe, Lukas UL; Lajeunesse, Yvette

Book published by L'Harmattan (1997)

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See detailCharacterization of some aggregation functions stable for positive linear transformations
Marichal, Jean-Luc UL; Mathonet, Pierre UL; Tousset, Eric

Scientific Conference (1997, January)

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See detailDemonstration of Nitrogen Carrier Gas in MOVPE For InP/InGaAs-Based High Frequency and Optoelectronic Integrated Devices
Hardtdegen, H.; Marso, Michel UL; Horstmann, M. et al

in Proceedings of the 9th International Conference on InP and Related Materials, Hyannis, Massachusetts, USA (1997)

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See detailElectrical Behaviour of the InP/InGaAs Based MSM-2DEG Diode
Marso, Michel UL; Horstmann, M.; Hardtdegen, H. et al

in Solid-State Electronics (1997), 41(1997), 25-31

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See detailMSM Photodetectors Based on InP/InGaAs 2DEG Structures, in Optoelectronic Properties of Semiconductors and Superlattices
Horstmann, M.; Marso, Michel UL; Kordoš, P.

Book published by Gordon and Brerach Science Publishers (1997)

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