Asymptotic Eigenvalue Distributions and Capacity for MIMO Channels under Correlated Fading

in IEEE Transactions on Wireless Communications (2004), 3(4), 13501359

A fluorescence cell biology approach to map the second integrin-binding site of talin to a 130-amino acid sequence within the rod domain

in Journal of Biological Chemistry (2004), 279(21), 22258-22266

The cytoskeletal protein talin, which provides a direct link between integrins and actin filaments, has been shown to contain two distinct binding sites for integrin β subunits. Here, we report the ... [more ▼]

The cytoskeletal protein talin, which provides a direct link between integrins and actin filaments, has been shown to contain two distinct binding sites for integrin β subunits. Here, we report the precise delimitation and a first functional analysis of the talin rod domain integrin-binding site. Partially overlapping cDNAs covering the entire human talin gene were transiently expressed as DsRed fusion proteins in Chinese hamster ovary cells expressing α IIbβ 3, linked to green fluorescent protein (GFP). Two-color fluorescence analysis of the transfected cells, spread on fibrinogen, revealed distinct subcellular staining patterns including focal adhesion, actin filament, and granular labeling for different talin fragments. The rod domain fragment G (residues 1984-2344), devoid of any known actin- or vinculin-binding sites, colocalized with β 3-GFP in focal adhesions. Direct in vitro interaction of fragment G with native platelet integrin α IIbβ 3 or with the recombinant wild type, but not the Y747A mutant β 3 cytoplasmic tail, linked to glutathione S-transferase, was demonstrated by surface plasmon resonance analysis and pull-down assays, respectively. Here, we demonstrate for the first time the in vivo relevance of this interaction by fluorescence resonance energy transfer between β 3-GFP and DsRed-talin fragment G. Further in vitro pull-down studies allowed us to map out the integrin-binding site within fragment G to a stretch of 130 residues (fragment J, residues 1984-2113) that also localized to focal adhesions. Finally, we show by a cell biology approach that this integrin- binding site within the talin rod domain is important for β 3-cytoskeletal interactions but does not participate in α IIbβ 3 activation. [less ▲]

Lebensstil und Leselust. Literarische Enkulturation und Soziale Milieus

in Literatur im Unterricht : Texte der Gegenwartsliteratur für die Schule (2004), (3), 247-262

Paris, 29 avril 2003

in Juris-Classeur périodique (2004)

Nature des ordonnances de référé pré-arbitral de la CCI.

A psychobiological perspective on genetic determinants of hypothalamus-pituitary-adrenal axis activity

in Annals of the New York Academy of Sciences (2004), 1032

The Establishment of the Standard History of Philosophy of Education and forgotten Traditions of Education

in Studies in Philosophy and Education (2004), 23(5/6), 367-391

Action déclaratoire et droit judiciaire européen

in Journal du Droit International (2004)

Verarbeitung von personbeschreibender Information als Textverstehen

in Psychologische Rundschau: Ueberblick Uber die Fortschritte der Psychologie in Deutschland, Oesterreich, und der Schweiz (2004), 55(1), 11-18

In this paper, relations between text comprehension and social cognition are discussed. It is argued that theories and research methods from the domain of text comprehension are well suited to highlight ... [more ▼]

In this paper, relations between text comprehension and social cognition are discussed. It is argued that theories and research methods from the domain of text comprehension are well suited to highlight the processing of person information. In research on person memory and impression formation stimulus materials are used which typically consist of a listwise presentation of traits and/or behavior describing statements. In contrast, research on text comprehension yields evidence that a crucial component of successful comprehension is provided by relations between the statements. These induce a coherent and hierarchically organized structure rather than an unorganized list. It is argued that analyzing impression formation and social judgment from text descriptions of persons provides a superior approach to social cognition by representing the complexity of relations between person attributes and their cognitive representations more adequately. [less ▲]

Rezension - Book review of "Die Bedeutung des Volkes im Völkerrecht" (Autor : Bernd Roland Elsner ; ISBN : 978-3428098279)

in Verfassung und Recht in Ubersee [=VRU] (2004)

Global analysis of piecewise linear systems using impact maps and quadratic surface Lyapunov functions

in IEEE Transactions on Automatic Control (2003), 48(12), 2089-2106

This paper presents an entirely new constructive global analysis methodology for a class of hybrid systems known as piecewise linear systems (PLS). This methodology infers global properties of PLS solely ... [more ▼]

This paper presents an entirely new constructive global analysis methodology for a class of hybrid systems known as piecewise linear systems (PLS). This methodology infers global properties of PLS solely by studying the behavior at switching surfaces associated with PLS. The main idea is to analyze impact maps, i.e., maps from one switching surface to the next switching surface. Such maps are known to be “unfriendly” maps in the sense that they are highly nonlinear, multivalued, and not continuous. We found, however, that an impact map induced by an linear time-invariant flow between two switching surfaces can be represented as a linear transformation analytically parametrized by a scalar function of the state. This representation of impact maps allows the search for surface Lyapunov functions (SuLF) to be done by simply solving a semidefinite program, allowing global asymptotic stability, robustness, and performance of limit cycles and equilibrium points of PLS to be efficiently checked. This new analysis methodology has been applied to relay feedback, on/off and saturation systems, where it has shown to be very successful in globally analyzing a large number of examples. In fact, it is still an open problem whether there exists an example with a globally stable limit cycle or equilibrium point that cannot be successfully analyzed with this new methodology. Examples analyzed include systems of relative degree larger than one and of high dimension, for which no other analysis methodology could be applied. This success in globally analyzing certain classes of PLS has shown the power of this new methodology, and suggests its potential toward the analysis of larger and more complex PLS. [less ▲]

A framework for designing transgenic crops - science, safety, and citizen’s concerns.

in Nature Biotechnology (2003), 21(11), 1274-1279

"Kinder stark machen!" Selbstvertrauen fördern

in Sportpraxis (2003), 44(4), 20-24

Competitiveness and Employment in a Small Open Economy

in Journal of Economic Integration (2003), 18(2), 391-405

The model developed in this article leads to a reduced form that synthesizes the relevant determinants of job creation in a small open economy. Among these factors, we stress the role of competitiveness ... [more ▼]

The model developed in this article leads to a reduced form that synthesizes the relevant determinants of job creation in a small open economy. Among these factors, we stress the role of competitiveness that is measured by an indicator taking into account the foreign price sensitiveness of domestic exporters. Our model shows that the stronger the price setting power of domestic firms, the greater the impact of competitiveness on employment is. The model is used to empirically estimate the determinants of job creation over the period 1970-1998, in Luxembourg, a small economy, where employment expanded dramatically during the last decades. [less ▲]

Selbstbestimmtes Lernen im Sportunterricht: Interviews mit Sportlehrerinnen und Sportlehrern

in Sportunterricht (2003), 52(3), 74-79

Activation of STAT3 by IL-6 and IL-10 in primary human macrophages is differentially modulated by suppressor of cytokine signaling 3.

in Journal of immunology (2003), 170(6), 3263-72

On human macrophages IL-10 acts as a more potent anti-inflammatory cytokine than IL-6, although both cytokines signal mainly via activation of the transcription factor STAT3. In this study we compare IL ... [more ▼]

On human macrophages IL-10 acts as a more potent anti-inflammatory cytokine than IL-6, although both cytokines signal mainly via activation of the transcription factor STAT3. In this study we compare IL-10 and IL-6 signaling in primary human macrophages derived from blood monocytes. Pretreatment of macrophages with PMA or the proinflammatory mediators LPS and TNF-alpha blocks IL-6-induced STAT3 activation, whereas IL-10-induced activation of STAT3 remains largely unaffected. Although LPS induces the feedback inhibitor suppressor of cytokine signaling 3 (SOCS3) in macrophages, inhibition of IL-6 signal transduction by LPS occurs rapidly and does not depend on gene transcription. We also found that pretreatment of macrophages with IL-10 inhibits subsequent STAT3 activation by IL-6, whereas IL-10-induced STAT3 activation is not affected by preincubation with IL-6. This cross-inhibition is dependent on active transcription and might therefore be explained by different sensitivities of IL-10 and IL-6 signaling toward the feedback inhibitor SOCS3, which is induced by both cytokines. In contrast to the IL-6 signal transducer gp130, which has been previously shown to recruit SOCS3 to one of its phosphotyrosine residues (Y759), peptide precipitation experiments suggest that SOCS3 does not interact with phosphorylated tyrosine motifs of the IL-10R. Taken together, different sensitivities of IL-10 and IL-6 signaling toward mechanisms that inhibit the Janus kinase/STAT pathway define an important mechanism that contributes to the different anti-inflammatory potencies of these two cytokines. [less ▲]

Processus intra-familiaux et engagement parental : un modèle de compréhension du parcours scolaire

in Scientia Paedagogica Experimentalis (2003), 40(2), 201-222

Drying and prolysis of wood particles: experiments and simulation.

in Journal of Analytical and Applied Pyrolysis (2003), 70

Agenten des Wandels: Wissensintensive Dienstleister und betrieblicher Umweltschutz.

in Zeitschrift für Wirtschaftsgeographie (2003), 47

Book Review: John Rodden: Repainting the Little Red schoolhouse: a history of eastern German education 1945-1995

in Educational Review (2003), 55(3), 347-347

Expertise in der professionellen Personbeurteilung. Eine Untersuchung zu der pädagogischen und klinischen Urteilsbildung

in Zeitschrift für Sozialmanagement (2003), 1

Efficient Greedy Learning of Gaussian Mixture Models

in Neural Computation (2003), 15(2), 469-485

This article concerns the greedy learning of gaussian mixtures. In the greedy approach, mixture components are inserted into the mixture one aftertheother.We propose a heuristic for searching for the ... [more ▼]

This article concerns the greedy learning of gaussian mixtures. In the greedy approach, mixture components are inserted into the mixture one aftertheother.We propose a heuristic for searching for the optimal component to insert. In a randomized manner, a set of candidate new components is generated. For each of these candidates, we find the locally optimal new component and insert it into the existing mixture. The resulting algorithm resolves the sensitivity to initialization of state-of-the-art methods, like expectation maximization, and has running time linear in the number of data points and quadratic in the (final) number of mixture components. Due to its greedy nature, the algorithm can be particularly useful when the optimal number of mixture components is unknown. Experimental results comparing the proposed algorithm to other methods on density estimation and texture segmentation are provided. [less ▲]

Le système scolaire luxembourgeois: Un système scolaire scolaire peu efficace malgré ou à cause de son caractère multilingue?

in Cahiers du Service de Pédagogie Expérimentale (SPE) (2003), 15/16(4), 516-532

Quelques réflexions sur le rapport entre le droit communautaire et le droit constitutionnel à la lumière de la révision de la Constitution hellénique

in Revue de la Recherche Juridique, Droit Prospectif (2003)

A fusion protein of the gp130 and interleukin-6Ralpha ligand-binding domains acts as a potent interleukin-6 inhibitor.

in Journal of Biological Chemistry (2003), 278(19), 16968-72

Interleukin (IL)-6 is involved in the maintenance and progression of several diseases such as multiple myeloma, rheumatoid arthritis, or osteoporosis. The present work aims at the development of an IL-6 ... [more ▼]

Interleukin (IL)-6 is involved in the maintenance and progression of several diseases such as multiple myeloma, rheumatoid arthritis, or osteoporosis. The present work aims at the development of an IL-6 inhibitor for the use in anti-cytokine therapies. The IL-6 receptor is composed of two different subunits, an alpha-subunit (IL-6Ralpha) that binds IL-6 with low affinity and a beta-subunit (gp130) that binds the IL-6.IL-6Ralpha complex with high affinity and as a result triggers intracellular signaling. In its soluble form, gp130 is a natural antagonist that neutralizes IL-6.soluble IL-6Ralpha complexes. It was our strategy to appropriately fuse the two receptor subunit fragments involved in IL-6 receptor complex formation to bind IL-6 with high affinity and to antagonize its effects. The ligand-binding domains of gp130 (D1-D2-D3) and IL-6Ralpha (D2-D3) were connected using three different linkers. The resulting constructs were expressed in stably transfected insect cells and tested for their ability to inhibit IL-6 activity in several in vitro systems. All fusion proteins were strong inhibitors of IL-6 signaling and abrogated IL-6-induced phosphorylation of STAT3, proliferation of transfected Ba/F3 cells, and induction of acute-phase protein synthesis. As intended, the fused receptors were much more effective than the separately expressed soluble receptor proteins. The fusion protein strategy presented here can also be applied to other cytokines that signal via receptors composed of two different subunits to design new potent inhibitors for anti-cytokine therapies. [less ▲]

Testing Condtional Moment Restrictions

in Annals of Statistics (2003), 31

Beta3 integrins: major therapeutic targets of the near future.

in Bulletin de la Société des Sciences Médicales du Grand-Duché de Luxembourg (2003), (1), 23-34

Integrins are major cell adhesion receptors which assume two important functions: first they act as anchoring molecules allowing firm cellular attachment to the extracellular matrix, and second they work ... [more ▼]

Integrins are major cell adhesion receptors which assume two important functions: first they act as anchoring molecules allowing firm cellular attachment to the extracellular matrix, and second they work as signalling receptors being able to transduce signals in both directions (outside-in and inside-out) through the plasma membrane. Their biological importance is determined by their involvement in many physiological phenomena. Furthermore, their implication in various diseases and their accessibility to drugs make them interesting therapeutic targets. [less ▲]

La pédagogie entre puissance du commerce et vertu républicaine: la question du luxe dans la Suisse de XVIIe sciècle

in Annales Pestalozzi (2003), 2

Spin relaxation in a complex environment

in Physical Review. E. (2003), 68(6),

Quantum master equation for a system influencing its environment

in Physical Review. E. (2003), 68(6),

‘C'est canard’ – ‘C'est un vert’. Der Artikelgebrauch im frühen gesteuerten Erwerb des Französischen

in Zeitschrift für Literaturwissenschaft und Linguistik [= LiLi] (2003), 33(131), 76-105

At an early stage of instructed foreign language learning (French), young learners develop a simplest language which reflects similarities with adult learner varieties, Creole systems and strategies of ... [more ▼]

At an early stage of instructed foreign language learning (French), young learners develop a simplest language which reflects similarities with adult learner varieties, Creole systems and strategies of (first) language acquisition. Due to the fact that their L1 (German) has still to be extended, especially in terms of the written variety, learners interact in an environment with specific language use. Considering young learners language production, examples of article use in instructed interaction were investigated. [less ▲]

Die Bedeutung der Philosophie für einen Theologen

in Nos Cahiers (2003), 1

Automutilation révoltée ou expression culturelle ? Le cas du body piercing à Rome

in Quasimodo (2003), 7

Le marquage des chairs à des fins esthétiques, identitaires ou politiques (tatouages, piercings, scarifications, implants, amputations, etc.), la chirurgie, le transsexualisme, les biotechnologiques ... [more ▼]

Le marquage des chairs à des fins esthétiques, identitaires ou politiques (tatouages, piercings, scarifications, implants, amputations, etc.), la chirurgie, le transsexualisme, les biotechnologiques, l’entraînement sportif et le dopage, constituent autant de pratiques visant à modifier un corps qu’il s’agit d’amplifier, d’embellir, de réparer ou d’altérer. Ces effractions parfois radicales, ces blessures volontaires, ces inscriptions éphémères ou définitives, visibles ou secrètes, posent la question de l’acceptable et du respect de la norme corporelle. Elles ouvrent la perspective concrète d’esquiver ou d’infléchir le destin biologique et social. Les stratégies identitaires s’incarnent alors dans l’effacement ou la revendication des différences, la quête ou le refus des canons esthétiques. [less ▲]

Opfer werden im Kontext fremdenfeindlicher Gewalt: Gewalttätige Übergriffe trotz beschwichtigendem Opferverhalten.

in Zeitschrift für Gewaltprävention (2003)

Le testing adaptatif par ordinateur dans la mesure en éducation: potentialités et limites

in Psychologie et Psychométrie (2003), 24(2-3), 89-116

Logiques administratives et persécution anti-juive. La police bruxelloise et les arrestations de 1942

in Cahiers d'Histoire du Temps Présent = Bijdragen tot de Eigentijdse Geschiedenis (2003), (12), 181--217

Forum Comment

in Science and Technology (2003), XX

AT2 receptor activation regulates myocardial eNOS expression via the calcineurin-NF-AT pathway.

in FASEB Journal (2003), 17(2), 283-5

The role of AT2-receptors has recently been subject of considerable debate. We investigated the influence of AT2-stimulation/inhibition on myocardial endothelial NO-synthase (eNOS, NOS-III) promoter ... [more ▼]

The role of AT2-receptors has recently been subject of considerable debate. We investigated the influence of AT2-stimulation/inhibition on myocardial endothelial NO-synthase (eNOS, NOS-III) promoter activity and eNOS protein expression. Stimulation of rat cardiomyocytes with angiotensin II (AngII) increased eNOS protein expression 3.3-fold. This was blocked by Cyclosporin A (CsA). Inhibition of the AT1-receptor did not reduce AngII-mediated eNOS protein expression, whereas AT2 stimulation increased it 2.4-fold and AT2 inhibition suppressed it. The modulatory effects of the AT2-receptor on eNOS expression was confirmed in mice with a genetic deletion of the AT2-receptor (AT2-KO). In gel shift assays two putative NF-AT sites in a 1.6 kb eNOS promoter fragment showed NF-AT binding and a supershift by NF-AT2(-c1)-specific antibodies. Stimulation of transfected cells with AngII or specific AT2-receptor agonists resulted in a significant increase in eNOS promoter activity, which was blocked by CsA, MCIP1, and mutation of an upstream NF-AT site. CONCLUSION: 1) AngII-stimulation of the myocardium, both in vivo and in vitro, is accompanied by increased expression of eNOS. 2) This effect is mediated by the calcineurin pathway and is induced by the AT2-receptor. 3) These results define a calcineurin/NF-AT/eNOS pathway as downstream effector of AT2-receptor activation in the myocardium. [less ▲]

Studio europeo ESAW (european study on adult well-being): il ruolo della salute fisica e dello stato funzionale per la qualità della vita in età adulta e anziana

in Giornale di Gerontologia (2003)

Ultrafast and highly sensitive photodetectors fabricated on high-energy nitrogen-implanted GaAs,

in Applied Physics Letters (2003), 83

We have fabricated and tested metal–semiconductor–metal ~MSM! photodetectors based on nitrogen-ion-implanted GaAs. Nitrogen ions with energy of 700 and 880 keV, respectively, were implanted into epitaxial ... [more ▼]

We have fabricated and tested metal–semiconductor–metal ~MSM! photodetectors based on nitrogen-ion-implanted GaAs. Nitrogen ions with energy of 700 and 880 keV, respectively, were implanted into epitaxial GaAs films at an ion concentration of 331012 cm22. Ti/Au MSM photodetectors with 1-um-wide fingers were fabricated on top of the implanted GaAs. In comparison to low-temperature-grown GaAs photodetectors, produced in parallel in identical MSM geometry, the 880 keV N1-implanted photodetectors exhibited almost two orders of magnitude lower dark current ~10 nA at 1 V bias! and the responsivity more than doubled ~.20 mA/W at 20 V bias!. Illumination with 100-fs-wide, 810 nm wavelength laser pulses, generated ;2.5-ps-wide photoresponse signals with amplitudes as high as 2 V. The 2.5 ps relaxation time was the same for both the ion-implanted and low-temperature-grown devices and was limited by the MSM capacitance time constant. [less ▲]

The Discourse of German Geisteswissenschaftliche Pädagogik - A Contextual Reconstruction

in Paedagogica Historica (2003), XXXIX(6), 759-778

The framework of German educational discourse of the twentieth century is so-called geisteswissenschaftliche Pädagogik, or education as one of the humanities or arts rather than as a science. It triumphed ... [more ▼]

The framework of German educational discourse of the twentieth century is so-called geisteswissenschaftliche Pädagogik, or education as one of the humanities or arts rather than as a science. It triumphed around 1925 in the second half of the Weimar Republic. This article outlines in three steps the core elements of this educational discourse. [less ▲]

Le rôle de la Communauté Européenne du Charbon et de l’Acier dans le développement des politiques de reconversion industrielle et d’essor économique régiona

in Mitteilungsblatt des Instituts für soziale Bewegungen (2003), 30

Effect of surface passivation on performance of AlGaN/GaN/Si HEMTs

in Solid-State Electronics (2003), 47((2003)), 2097-2103

Performance of intentionally undoped and doped AlGaN/GaN/Si high electron mobility transistors (HEMTs) before and after passivation with SiO2 and Si3N4 is investigated. Hall effect measurements show ... [more ▼]

Performance of intentionally undoped and doped AlGaN/GaN/Si high electron mobility transistors (HEMTs) before and after passivation with SiO2 and Si3N4 is investigated. Hall effect measurements show higher impact of Si3N4 than SiO2 passivation on the carrier concentration increase in the channel. Improvements in DC performance of HEMTs after passivation with SiO2 and Si3N4 correspond to the changes in sheet carrier concentration. Small signal microwave characterisation shows a decrease (from 18.6 to 9 GHz) and an increase (from 18.4 to 28.8 GHz) of the current gain cut off frequency after SiO2 and Si3N4 passivation, respectively. Similar effect of passivation is found in microwave power changes––only about a half of the power is obtained after SiO2 passivation but more than doubled power results from Si3N4 passivation, measured at 2 GHz. Higher density of interface states for SiO2 than Si3N4 passivation is supposed to be responsible for these effects. However, for an optimal design of GaN-based power devices additional studies related to the interface between a passivation layer and GaN are needed. [less ▲]

Grundfälle zum Europarecht - 4. Teil (Europäisches Prozessrecht)

in Juristische Schulung : Zeitschrift für Studium und Referendariat (2003)

Wie „wir“ von den Lebensgeschichten „anderer“ lernen können – zum Umgang mit Kontingenz und Vertrautheit bei der sozialwissenschaftlichen Interpretation

in Psychosozial (2003), 91(2), 50-63

Molecular dynamics simulation of the unfolding of the human prion protein domain under low pH and high temperature conditions

in Biophysical Chemistry (2003), 104(1), 79-94

Four 10-ns molecular dynamics (MD) simulations of the human prion protein domain (HuPrP 125-228) in explicit water solution have been performed. Each of the simulations mimicked a different environment of ... [more ▼]

Four 10-ns molecular dynamics (MD) simulations of the human prion protein domain (HuPrP 125-228) in explicit water solution have been performed. Each of the simulations mimicked a different environment of the protein: the neutral pH environment was simulated with all histidine residues neutral and bearing a ND proton and with other titratable side chains charged, the weakly acidic environment was simulated with all titratable side chains charged, he strongly acidic environment was simulated with all titratable side chains protonated. The protein in neutral pH environment was simulated at both ambient (298 K) and higher (350 K) temperatures. The native fold is stable in he neutral pH/ambient temperature simulation. Through out all other simulations, a quite stable core consisted of 0-20 residues around the disulfide bond retain their initial conformations. However, the secondary structures of the Protein show changes of various degrees compared to the native fold, parts of the helices unfolded and the beta-sheets extended. Our simulations indicated that the heat-induced unfolding and acid-induced unfolding of HuPrP might follow different pathways: the initial stage of the acid-induced unfolding may include not only changes in secondary structures, but also changes in the tertiary structures. Under the strongly acidic condition, obvious tertiary structure changes take place after 10-ns simulation, the secondary structure elements and the loops becoming more parallel to each other, resulting in a compact state, which was stabilized by a large number of new, non-native side chain-side chain contacts. Such tertiary structure changes were not observed in the higher temperature simulation, and intuitively, they may favor the further extension of the beta-sheets and eventually the agglomeration of multiple protein molecules. The driving forces for this tertiary structure changes are discussed. Two additional 10-ns MD simulations, one with Asp202 protonated and the other with Glu196 protonated compared to the neutral pH simulation, were carried out. The results showed that the stability of the native fold is very subtle and can be strongly disturbed by eliminating a single negative charge at one of such key sites. Correlations of our results with previous experimental and theoretical studies are discussed. (C) 2003 Elsevier Science B.V. All rights reserved. [less ▲]

Transcoding zeros within complex numerals.

in Neuropsychologia (2003), 41(12), 1611-8

This paper describes a patient (LD) showing a selective syntactic deficit in the production of Arabic numerals. Unlike in previously reported cases, LD's syntactic difficulties result in deletions rather ... [more ▼]

This paper describes a patient (LD) showing a selective syntactic deficit in the production of Arabic numerals. Unlike in previously reported cases, LD's syntactic difficulties result in deletions rather than insertions of zeros, with a reduction of the number magnitude. The pattern of errors highlighted a distinction between "lexical zeros", i.e. the zeros in tens, that are semantically derived, and "syntactic zeros" that are syntactically produced as the result of specific production rules. In LD, only syntactic zeros were affected. Furthermore, the processing of numerals with final zeros was found to be easier than the processing of numerals with internal zeros. This pattern of errors is compatible with the lexical-semantic model of Power and Dal Martello. In this model, in fact, lexical zeros originate from a numerical concept, while syntactic zeros originate from a concatenation operation, plus an overwriting operation leaving one or more intermediary zeros. Thus, lexical zeros may be easier to manipulate than syntactic zeros that merely represent a null quantity associated to a specific power of 10. [less ▲]

Review of M. Gymnich, A. and V. Nuenning. (eds) Literature and Linguistics: Approaches, Models, and Applications

in BELL. Belgian Journal of English Language and Literatures (2003), 12

Utilisation des modules elliptiques de Drinfeld en cryptologie

in Comptes Rendus. Mathématique (2003), 336(11), 879-882

Étude critique de la notion de patrimoine en droit privé actuel

in Bibliothèque de droit privé (2003), 399

Weighted Group Algebras on Groups of Polynomial Growth

in Mathematische Zeitschrift (2003), 245(4), 791-821