References of "2003"
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See detailLes divergences de jurisprudence
Ancel, Pascal UL; Rivier, Marie-Claire

Book published by Presses de l'Université de saint-Etienne (2003)

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See detailSemidefinite Programming for Detection in Linear Systems - Optimality Conditions and Space-Time Decoding
Jaldén, Joakim; Martin, Cristoff; Ottersten, Björn UL

in IEEE International Conference on Acoustics Speech and Signal Processing (2003)

Optimal maximum likelihood detection of finite alphabet symbols in general requires time consuming exhaustive search methods. The computational complexity of such techniques is exponential in the size of ... [more ▼]

Optimal maximum likelihood detection of finite alphabet symbols in general requires time consuming exhaustive search methods. The computational complexity of such techniques is exponential in the size of the problem and for large problems sub-optimal algorithms are required. In this paper, to find a solution in polynomial time, a semidefinite programming approach is taken to estimate binary symbols in a general linear system. A condition under which the proposed method provides optimal solutions is derived. As an application, the proposed algorithm is used as a decoder for a linear space-time block coding system and the results are illustrated with numerical examples. [less ▲]

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See detailSixth International Comparison of Absolute Gravimeters, ICAG-2001
Vitushkin, Leonid; Jiang, Zhiheng; Becker, Matthias et al

in Francis, Olivier; van Dam, Tonie (Eds.) Proceedings of the Workshop: IMG-2002 Instrumentation and Metrology in Gravimetry (2003)

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See detailPower Allocation and Bit Loading for Spatial Multiplexing in MIMO Systems
Zhang, Xi; Ottersten, Björn UL

in Proceedings IEEE International Conference on Acoustics, Speech, and Signal Processing (2003)

The power assignment problem is important for Multiple-Input-Multiple-Output (MIMO) systems to achieve high capacity. Although this problem is solved by well-known water filling algorithms, this does not ... [more ▼]

The power assignment problem is important for Multiple-Input-Multiple-Output (MIMO) systems to achieve high capacity. Although this problem is solved by well-known water filling algorithms, this does not provide an optimal solution if the system is constrained to a fixed raw bit error rate threshold and to discrete modulation s. In this work an approximate approach, called QoS based WF, is proposed to solve the power assignment problem with such constrains. It is shown to outperform quantization of the conventional water filling solution and a well known bit loading algorithm (Chow's algorithm) used in the Digital Subscriber Lines (DSL). [less ▲]

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See detailHigher genus affine Lie algebras of Krichever-Novikov type
Schlichenmaier, Martin UL

in Moscow Mathematical Journal (2003), 3

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See detailAcoustic profilometry within polymers as performed by Brillouin microscopy
Sanctuary, Roland UL; Bactavatchalou, R.; Müller, Ulrich UL et al

in Journal of Physics : D Applied Physics (2003), 36(21), 2738-2742

Using high performance Brillouin spectroscopy we present a new technique, which enables us to perform acoustic microscopy with a spatial resolution of about 1 μm. This technique, called Brillouin ... [more ▼]

Using high performance Brillouin spectroscopy we present a new technique, which enables us to perform acoustic microscopy with a spatial resolution of about 1 μm. This technique, called Brillouin microscopy, is tested on several bulk- and film-like polymer samples. [less ▲]

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See detailAkt modulates STAT3-mediated gene expression through a FKHR (FOXO1a)-dependent mechanism
Kortylewski, M.; Feld, F.; Krüger, K. D. et al

in Journal of Biological Chemistry (2003), 278(7), 5242-9

The phosphatidylinositol 3-kinase/Akt pathway plays an important role in the signaling of insulin and other growth factors, which reportedly attenuate the interleukin-6 (IL-6)-mediated stimulation of ... [more ▼]

The phosphatidylinositol 3-kinase/Akt pathway plays an important role in the signaling of insulin and other growth factors, which reportedly attenuate the interleukin-6 (IL-6)-mediated stimulation of acute phase plasma protein genes. We investigated the effect of the protein kinase Akt on IL-6-mediated transcriptional activation. The transient expression of constitutively active Akt inhibited the IL-6-dependent activity of the alpha(2)-macroglobulin promoter in HepG2 cells, whereas expression of an inactive mutant of phosphatidylinositol-dependent kinase 1 had the opposite effect. Since Akt is known to regulate gene expression through inactivation of the transcription factor FKHR (forkhead in rhabdomyosarcoma), we examined the effect of FKHR on STAT3-mediated transcriptional regulation. Indeed, the overexpression of FKHR specifically enhanced the activity of STAT3-dependent promoters but not that of a STAT5-responsive promoter. The effect of FKHR required the presence of functional STAT3 and was abrogated by the expression of dominant negative STAT3 mutants. Furthermore, FKHR and STAT3 were shown to coimmunoprecipitate and to colocalize in the nuclear regions of IL-6-treated HepG2 cells. Our results indicate that FKHR can modulate the IL-6-induced transcriptional activity by acting as a coactivator of STAT3. [less ▲]

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See detailProceedings of the Workshop: IMGC-2002 Instrumentation and Metrology in Gravimetry
Francis, Olivier UL; van Dam, Tonie UL

Book published by Centre Européen de Géodynamique et de Séismologie (2003)

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See detailProcessing of the Absolute data of the ICAG01
Francis, Olivier UL; van Dam, Tonie UL

in Francis, Olivier; van Dam, Tonie (Eds.) Proceedings of the Workshop: IMG-2002 Instrumentation and Metrology in Gravimetry (2003)

Detailed reference viewed: 70 (1 UL)
See detailWalther Rathenau
Heimböckel, Dieter UL

in Kilcher, Andreas B.; Fraisse, Otfried (Eds.) Metzler Lexikon jüdischer Philosophen. Philosophisches Denken des Judentums von der Antike bis zur Gegenwart (2003)

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See detailConstitutional Human Rights in the Commonwealth
Happold, Matthew UL; Anderson, Michael

Book published by British Institute of International and Comparative Law (2003)

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See detailFreedom of Religion: Recent Developments in the Commonwealth
Happold, Matthew UL

in Anderson, Michael; Happold, Matthew (Eds.) Constitutional Human Rights in the Commonwealth (2003)

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See detail'Amerika im Kopf'. Franz Kafkas Roman "Der Verschollene" und der Amerika-Diskurs seiner Zeit
Heimböckel, Dieter UL

in Deutsche Vierteljahrsschrift für Literaturwissenschaft und Geistesgeschichte (2003), 77(1), 130-147

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See detailGrammatische Irregularitäten als Folge sprachhistorischer Regelhaftigkeit. ZUm Problem der starken Verben im DaF-Unterricht
Sieburg, Heinz UL

in Verband der Deutschlehrer und Germanisten der Slowakei (Ed.) Sammelband der Beiträge der VI. Tagung des Verbandes der Deutschlehrer und Germanisten der Slowakei, 4.-7.9.2002 in Košice 2003 (2003)

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See detail»Fertig Werden« Das Bielefelder BA-Studium Germanistik und die Lust am Text
Mein, Georg UL

in Mitteilungen des Deutschen Germanistenverbandes (2003), (2-3), 354-365

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See detailAblenkung. Kafkas Idee des literarischen Suizids
Mein, Georg UL

in Zeitschrift für Deutsche Philologie (2003), (2), 266-286

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See detailDomain formation and long-range spin disorder in Vitroperm
Michels, Andreas UL; Viswanath, R. N.; Weissmüller, J.

in Europhysics Letters [=EPL] (2003), 64

We present a study of the magnetic-field dependence of the small-angle neutron scattering of the nanocrystalline soft magnet Vitroperm (Fe73Si16B7Nb3Cu1), which was treated so as to exhibit a macroscopic ... [more ▼]

We present a study of the magnetic-field dependence of the small-angle neutron scattering of the nanocrystalline soft magnet Vitroperm (Fe73Si16B7Nb3Cu1), which was treated so as to exhibit a macroscopic magnetic anisotropy. We show how the field dependences of i) the radial average of the scattering cross-section dΣ/dΩ and ii) the variation of dΣ/dΩ as a function of the orientation of the scattering vector can be analysed to supply separately information on the orientation of the net magnetisation of the domains and on the internal spin disorder within the domains. As the applied magnetic field is decreased starting from saturation, we find that two processes occur independently: the formation of a domain structure with the net magnetisation of the domains aligned along the macroscopic easy axis and the increase in magnitude of static, nanometer-scale fluctuations of the spin orientation. [less ▲]

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See detailLes modes opéatoires de la cryptographie symétrique
Schiltz, Jang UL

Report (2003)

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