The blistering of a viscoelastic filament of a droplet of saliva (2009)
Wagner, Christian, Sattler, Rainer, Eggers, Jens
A fluid dynamics video of the break up of a droplet of saliva is shown. First a viscoelastic filament is formed and than the blistering of this filament is shown. Finally, a flow induced phase...
Direct measurement of shear-induced cross-correlations of Brownian motion (2009)
Ziehl, Andreas, Bammert, Jochen, Holzer, Lukas, Wagner, Christian, Zimmermann, Walter
Shear-induced cross-correlations of particle fluctuations perpendicular and along stream-lines are investigated experimentally and theoretically. Direct measurements of the Brownian motion of...
Deconvolution problems in density estimation (2009)
The main focus of this work lies on generalizations of the usual nonparametric density estimation problem to cases where one does not have access to the data associated with the density of interest...
Weblogging: a study of social computing and its impact on organisations (2009)
Ip, Rachael Kwai-fun (葉桂芬), Prof.Wagner, Christian
Won the Citation of Excellence Award from the Emerald Management Reviews on 2009.
Maximal integral simplices with no interior integer points (2009)
Andersen, Kent, Wagner, Christian, Weismantel, Robert
In this paper, we consider integral maximal lattice-free simplices. Such simplices have integer vertices and contain integer points in the relative interior of each of their facets, but no integer...
On the starting redshift for cosmological simulations: Focusing on halo properties (2009)
Knebe, Alexander, Wagner, Christian, Knollmann, Steffen, Diekershoff, Tobias, Krause, Fabian
We systematically study the effects of varying the starting redshift z_i for cosmological simulations in the highly non-linear regime. Our primary focus lies with the (individual) properties of dark...
Heitmann, Katrin, Higdon, David, White, Martin, Habib, Salman, Williams, Brian J., Wagner, Christian
The power spectrum of density fluctuations is a foundational source of cosmological information. Precision cosmological probes targeted primarily at investigations of dark energy require accurate...
Component-Oriented Behavior Extraction for Autonomic System Design (2009)
Margaria, Tiziana, Bakera, Marco, Wagner, Christian
Rich and multifaceted domain specific specification languages like the Autonomic System Specification Language (ASSL) help to design reliable systems with self-healing capabilities. The GEAR...
The Coyote Universe I: Precision Determination of the Nonlinear Matter Power Spectrum (2008)
Heitmann, Katrin, White, Martin, Wagner, Christian, Habib, Salman, Higdon, David
Near-future cosmological observations targeted at investigations of dark energy pose stringent requirements on the accuracy of theoretical predictions for the clustering of matter. Currently, N-body...
Dynamics of polymers in elongational flow investigated by inelastic neutron scattering (2008)
Rheinstadter, Maikel C., Sattler, Rainer, Haeussler, Wolfgang, Wagner, Christian
The nanoscale fluctuation dynamics of semi dilute high molecular weight polymer solutions of Polyethylenoxide (PEO) in D2O under non-equilibrium flow conditions were studied by the neutron spin-echo...
Salma Bava, Ummu, Feng, Zhongping, Fischer, Sabine, Aurelio Garcia, Marco, Godement, Francois, Grevi, Giovanni, ...
The tension between interdependence and power politics will shape the future of the international system. It is in the interest of the European Union to engage established and aspiring global powers...
Genome sequencing and analysis of the filamentous fungus Penicillium chrysogenum (2008)
Albang, Richard, Albermann, Kaj, Badger, Jonathan H., Daran, Jean-Marc, Driessen, Arnold J.M., ...
Industrial penicillin production with the filamentous fungus Penicillium chrysogenum is based on an unprecedented effort in microbial strain improvement. To gain more insight into penicillin...
Group Wisdom Support Systems: Aggregating the Insights of many trough Information Technology (2008)
Evidence from a variety of domains suggests that the wisdom of crowds, the aggregated insights and judgments of large groups of non-experts, can generate results that are equal or better to those of...
Filtering Decompositions with Respect to Adaptive Test Vectors (2007)
Christian Wagner And, Christian Wagner, Gabriel Wittum
. The adaptive filtering decompositions are based on the tangential frequency filtering decompositions (TFFD). During the iteration with a preliminary preconditioner, the adaptive test vector method...
On the Algebraic Construction of Multilevel Transfer Operators (2007)
I Zentrum, Wissenschaftliches Rechnen, Christian Wagner
Summary The standard way to construct coarse grids for algebraic multigrid methods is a heuristic labeling of the nodes as C- and F-nodes. While the F-nodes are eliminated, the C-nodes built the...
Randolph E. Bank, Christian Wagner
Abstract. In this paper, the multilevel ILU (MLILU) decomposition is introduced. During an incomplete Gaussian elimination process new matrix entries are generated such that a special ordering...
Randolph E. Bank, Christian Wagner
Abstract. In this paper, the multilevel ILU (MLILU) decomposition is introduced. During an incomplete Gaussian elimination process new matrix entries are generated such that a special ordering...
Wet Sand flows better than dry sand (2007)
Fiscina, Jorge E., Wagner, Christian
We investigated the yield stress and the apparent viscosity of sand with and without small amounts of liquid. By pushing the sand through a tube with an enforced Poiseuille like profile we minimize...
Wagner, Christian, Müller, Volker, Steinmetz, Matthias
The measurement of the scale of the baryon acoustic oscillations (BAO) in the galaxy power spectrum as a function of redshift is a promising method to constrain the equation-of-state parameter of the...
PEDANT genome database: 10 years online (2007)
M. Louise Riley, Thorsten Schmidt, Irena I. Artamonova, Christian Wagner, Andreas Volz, Klaus Heumann, ...
The PEDANT genome database provides exhaustive annotation of 468 genomes by a broad set of bioinformatics algorithms. We describe recent developments of the PEDANT Web server. The all-new Graphical...
PEDANT genome database: 10 years online (2007)
Riley, M. Louise, Schmidt, Thorsten, Artamonova, Irena I., Wagner, Christian, Volz, Andreas, Heumann, Klaus, ...
The PEDANT genome database provides exhaustive annotation of 468 genomes by a broad set of bioinformatics algorithms. We describe recent developments of the PEDANT Web server. The all-new Graphical...
Building Semantic Webs for egovernment with Wiki technology (2006)
Christian Wagner, Stefan Böttcher
Abstract: E-government webs are among the largest webs in existence, based on the size, number of users and number of information providers. Thus, creating a Semantic Web infrastructure to...
PEDANT genome database: 10 years online (2006)
Riley, M. Louise, Schmidt, Thorsten, Artamonova, Irena I., Wagner, Christian, Volz, Andreas, Heumann, Klaus, ...
The PEDANT genome database provides exhaustive annotation of 468 genomes by a broad set of bioinformatics algorithms. We describe recent developments of the PEDANT Web server. The all-new Graphical...
PEDANT genome database: 10 years online (2006)
Riley, M. Louise, Schmidt, Thorsten, Artamonova, Irena I., Wagner, Christian, Volz, Andreas, Heumann, Klaus, ...
The PEDANT genome database provides exhaustive annotation of 468 genomes by a broad set of bioinformatics algorithms. We describe recent developments of the PEDANT Web server. The all-new Graphical...
Wagner, Christian, Amarouchene, Yassine, Doyle, Patrick, Bonn, Daniel
We report measurements of turbulent drag reduction of two different polyelectrolyte solutions: DNA and hydrolyzed Polyacrylamide. Changing the salt concentration in the solutions allows us to change...
Concepts of hard and soft power have their origins in the neo-realist and liberal institutional theories of international relations. They can also be regarded as two poles on a continuum of power...
Faraday Instability in a Surface-Frozen Liquid (2005)
Huber, Patrick, Soprunyuk, Viktor, Embs, Jan, Wagner, Christian, Deutsch, Moshe, Kumar, Satish
Faraday surface instability measurements of the critical acceleration, a_c, and wavenumber, k_c, for standing surface waves on a tetracosanol (C_24H_50) melt exhibit abrupt changes at T_s=54degC...
A position-based router: design, implementation and measurement. (2005)
Füßler, Holger, Möske, Michael, Hartenstein, Hannes, Franz, Walter, Festag, Andreas, Wagner, Christian
Calculation of the Hughes-Eckart shift / (2005)
Thesis (M.S. in Mathematics)--University of Wisconsin--Milwaukee, 2005.
Georg Hildenbr, Y Udo Spöri, Christian Wagner, Christoph Cremer, Michael Hausmann Z
ABSTRACT Although light microscopy and three-dimensional image analysis have made considerable progress during the last decade, it is still challenging to analyze the genome nano-architecture of...
Concepts of hard and soft power have their origins in the neo-realist and liberal institutional theories of international relations. They can also be regarded as two poles on a continuum of power...
The PEDANT genome database in 2005 (2005)
Riley, M. Louise, Schmidt, Thorsten, Wagner, Christian, Mewes, Hans-Werner, Frishman, Dmitrij
The PEDANT genome database (http://pedant.gsf.de) contains pre-computed bioinformatics analyses of publicly available genomes. Its main mission is to provide robust automatic annotation of the vast...
doi:10.1093/nar/gki019 The PEDANT genome database in 2005 (2004)
M. Louise Riley, Thorsten Schmidt, Christian Wagner, Hans-werner Mewes, Dmitrij Frishman
The PEDANT genome database
Mit der Aufnahme von Verhandlungen zwischen der srilankischen Regierung und Vertretern der tamilischen Liberation Tigers of Tamil Eelam (LTTE) im September 2002 scheinen sich die Aussichten für...
Großmacht im Wartestand? Indische Außenpolitik am Beginn des 21. Jahrhunderts (2004)
Aus der Reihe der asiatischen Staaten hat in den vergangenen Jahren vor allem die Indische Union an Profil gewonnen. In den neunziger Jahren ist eine deutliche Verbesserung der bilateralen...
Democratic Peace in South Asia? (2003)
The problems and prospects of democratic peace have attracted both scholars of international relations and policy makers in recent years. The main argument is that the promotion of democracy will...
Wagner, Christian, Amarouchene, Yassine, Doyle, Patrick, Bonn, Daniel
We report measurements of turbulent drag reduction of two different polyelectrolyte solutions: DNA and hydrolyzed Polyacrylamide. Changing the salt concentration in the solutions allows us to change...
Wagner, Christian, Amarouchene, Yassine, Doyle, Patrick, Bonn, Daniel
We report measurements of turbulent drag reduction of two different polyelectrolyte solutions: DNA and hydrolyzed Polyacrylamide. Changing the salt concentration in the solutions allows us to change...
The node distribution of the random waypoint mobility model for wireless ad hoc networks (2003)
Christian Bettstetter, Christian Wagner
Abstract: The random waypoint model is a frequently used mobility model for simulation–based studies of wireless ad hoc networks. This paper investigates the spatial node distribution that results...
Untersuchungen zum selektiven Lasersintern von Metallen / (2003)
Zugl.: Aachen, Techn. Hochsch., Diss., 2002.
Democratic Peace in South Asia? (2003)
The problems and prospects of democratic peace have attracted both scholars of international relations and policy makers in recent years. The main argument is that the promotion of democracy will...
The PEDANT genome database (2003)
Frishman, Dmitrij, Mokrejs, Martin, Kosykh, Denis, Kastenmüller, Gabi, Kolesov, Grigory, Zubrzycki, Igor, ...
The PEDANT genome database (http://pedant.gsf.de) provides exhaustive automatic analysis of genomic sequences by a large variety of established bioinformatics tools through a comprehensive Web-based...
Sonderschutz für bekannte Kennzeichen im Marken-, Wettbewerbs- und Deliktsrecht / (2002)
Mainz, Universität, Thesis (doctoral), 2002.
DOI: 10.1093/nar/gkg005 The PEDANT genome database (2002)
Dmitrij Frishman, Martin Mokrejs, Denis Kosykh, Gabi Kastenmüller, Grigory Kolesov, Igor Zubrzycki, ...
The PEDANT genome database
Wagner, Christian, Amarouchene, Yassine, Doyle, Patrick, Bonn, Daniel
We report measurements of turbulent drag reduction of two different polyelectrolyte solutions: DNA and hydrolyzed Polyacrylamide. Changing the salt concentration in the solutions allows us to change...
Pattern formation at the bi-critical point of the Faraday instability (2001)
Wagner, Christian, Mueller, Hanns Walter, Knorr, Klaus
We present measurements on parametrically driven surface waves (Faraday waves) performed in the vicinity of a bi-critical point in parameter space, where modes with harmonic and subharmonic time...
Ternäre Verbindungen von Ruthenium mit Chalkogenen und Halogenen (2001)
Unter Solvothermalbedingungen sollten mit Autoklaventechnik neue ternäre Verbindungen des Rutheniums mit Chalkogenen und Halogenen gewonnen und strukturell charakterisiert werden.Bei Umsetzungen der...
Christian Wagner, Efraim Turban
A conflict has emerged between Internet information creators and information brokers. Information creators frequently offer their information free of charge to users, recovering the cost to create it...
Synthese von Androgenen und Perylenfarbstoffen / (2000)
München, Universiẗat, Diss., 2001 (Nur beschränkt für den Austausch).
Simulating a Field Case of Reactive Chloroethene Transport with the Multigrid Method (2000)
Christian Wagner, Wolfgang Schäfer, Willi Jäger, Gabriel Wittum, Eberhard Kohlmeier
In this paper, the simulation of a bio-chemical in situ remediation approach is discussed. We consider a eld case of a contaminant plume consisting of dissolved chloroethenes. A regional ow model...
Musterselektion am bikritischen Punkt der Faraday-Instabilität / (2000)
Saarbrücken, Universiẗat, Diss., 2000.
Ternäre Verbindungen von Ruthenium mit Chalkogenen und Halogenen [Elektronische Ressource] / (2000)
Freiburg (Breisgau), Universiẗat, Diss., 2000.
Ternäre Verbindungen von Ruthenium mit Chalkogenen und Halogenen (2000)
Unter Solvothermalbedingungen sollten mit Autoklaventechnik neue ternäre Verbindungen des Rutheniums mit Chalkogenen und Halogenen gewonnen und strukturell charakterisiert werden. Bei Umsetzungen...
. A construction scheme for prolongation and restriction operators for multilevel methods is introduced. The algorithm uses information from the system matrix only and has been generalized to certain...
On the Algebraic Construction of Multilevel Transfer Operators (1999)
Interdisziplin Zentrum, Wissenschaftliches Rechnen, Christian Wagner
This paper is submitted to Computing On the Algebraic Construction of Multilevel Transfer Operators
Erlangen, Nürnberg, Univ., Diss., 1998.
Numerical Methods for Diffusion-Reaction-Transport Processes in Unsaturated Porous Media (1998)
This paper introduces a new grid refinement and coarsening technique for the approximation of partial differential equations including a first order time derivative. This hierarchical movement...
Hans-peter Stuible, Christian Wagner, Ioanna Andreou, Gabriele Huter
The fatty acid synthase (FAS) from Brevibacterium ammoniagenes is a homohexameric multienzyme complex that catalyzes the synthesis of both saturated and unsaturated fatty acids. By immunological...
Tangential Frequency Filtering Decompositions for Unsymmetric Matrices (1996)
. In this paper, tangential frequency filtering decompositions (TFFD) for unsymmetric matrices are introduced. Different algorithms for the construction of unsymmetric tangential frequency filtering...
Tangential Frequency Filtering Decompositions for Symmetric Matrices (1996)
. The tangential frequency filtering decomposition (TFFD) is introduced. The convergence theory of an iterative scheme based on the TFFD for symmetric matrices is the focus of this paper. The...
Tangential Frequency Filtering Decompositions (1996)
. In this paper, new robust algorithms for the solution of systems of linear equations which arise from the discretisation of partial differential equations with strongly varying coefficients are...
Zugl.: Stuttgart, Univ., Diss., 1995.
[Mikrofiche-Ausg.].
Auch Sekundärausg.
Literaturverz.
Magdeburg, Pädag. Hochsch., Diss. B, 1988 (Nicht f.d. Austausch).
Univ. d. Saarlandes, Naturwiss. F., Diss. v. 21. Mai 1957.
Die rhinogene Meningitis an Hand des Krankenmaterials der F. U. Berlin. (1953)
Berlin, Freie Univ., Med. F., Diss. v. 23. Okt. 1953 (Nicht f. d. Aust.).
Are intelligent e-commerce agents partners or predators? (0000)
Mobile agents are changing the face of e-business and reshaping business models. In the process these agents are also posing new concerns regarding who really owns information. EBay Inc. made...
De Saizieu, Antoine, Gardès, Christophe, Flint, Nicholas, Wagner, Christian, Kamber, Markus, Mitchell, Timothy J., ...
We have identified in the Streptococcus pneumoniae genome sequence a two-component system (TCS13, Blp [bacteriocin-like peptide]) which is closely related to quorum-sensing systems regulating cell...
Genetic Analysis and Functional Characterization of the Streptococcus pneumoniae vic Operon
Wagner, Christian, Saizieu, Antoine De, Schönfeld, Hans-Joachim, Kamber, Markus, Lange, Roland, Thompson, Charles J., ...
The vic two-component signal transduction system of Streptococcus pneumoniae is essential for growth. The vic operon comprises three genes encoding the following: VicR, a response regulator of the...
Frishman, Dmitrij, Mokrejs, Martin, Kosykh, Denis, Kastenmüller, Gabi, Kolesov, Grigory, Zubrzycki, Igor, ...
The PEDANT genome database (http://pedant.gsf.de) provides exhaustive automatic analysis of genomic sequences by a large variety of established bioinformatics tools through a comprehensive Web-based...
The PEDANT genome database in 2005
Riley, M. Louise, Schmidt, Thorsten, Wagner, Christian, Mewes, Hans-Werner, Frishman, Dmitrij
The PEDANT genome database (http://pedant.gsf.de) contains pre-computed bioinformatics analyses of publicly available genomes. Its main mission is to provide robust automatic annotation of the vast...
Lerner, Claude G., Kakavas, Stephan J., Wagner, Christian, Chang, Richard T., Merta, Philip J., Ruan, Xiaoan, ...
Restriction enzyme modulation of transformation efficiencies (REMOTE) is a method that makes use of genome restriction maps and experimentally observed differences in transformation efficiencies of...
Hildenbrand, Georg, Rapp, Alexander, Spöri, Udo, Wagner, Christian, Cremer, Christoph, Hausmann, Michael
Although light microscopy and three-dimensional image analysis have made considerable progress during the last decade, it is still challenging to analyze the genome nano-architecture of specific gene...
De Saizieu, Antoine, Gardès, Christophe, Flint, Nicholas, Wagner, Christian, Kamber, Markus, Mitchell, Timothy J., ...
We have identified in the Streptococcus pneumoniae genome sequence a two-component system (TCS13, Blp [bacteriocin-like peptide]) which is closely related to quorum-sensing systems regulating cell...
Genetic Analysis and Functional Characterization of the Streptococcus pneumoniae vic Operon
Wagner, Christian, Saizieu, Antoine De, Schönfeld, Hans-Joachim, Kamber, Markus, Lange, Roland, Thompson, Charles J., ...
The vic two-component signal transduction system of Streptococcus pneumoniae is essential for growth. The vic operon comprises three genes encoding the following: VicR, a response regulator of the...
Frishman, Dmitrij, Mokrejs, Martin, Kosykh, Denis, Kastenmüller, Gabi, Kolesov, Grigory, Zubrzycki, Igor, ...
The PEDANT genome database (http://pedant.gsf.de) provides exhaustive automatic analysis of genomic sequences by a large variety of established bioinformatics tools through a comprehensive Web-based...
The PEDANT genome database in 2005
Riley, M. Louise, Schmidt, Thorsten, Wagner, Christian, Mewes, Hans-Werner, Frishman, Dmitrij
The PEDANT genome database (http://pedant.gsf.de) contains pre-computed bioinformatics analyses of publicly available genomes. Its main mission is to provide robust automatic annotation of the vast...
Lerner, Claude G., Kakavas, Stephan J., Wagner, Christian, Chang, Richard T., Merta, Philip J., Ruan, Xiaoan, ...
Restriction enzyme modulation of transformation efficiencies (REMOTE) is a method that makes use of genome restriction maps and experimentally observed differences in transformation efficiencies of...
Hildenbrand, Georg, Rapp, Alexander, Spöri, Udo, Wagner, Christian, Cremer, Christoph, Hausmann, Michael
Although light microscopy and three-dimensional image analysis have made considerable progress during the last decade, it is still challenging to analyze the genome nano-architecture of specific gene...
PEDANT genome database: 10 years online
Riley, M. Louise, Schmidt, Thorsten, Artamonova, Irena I., Wagner, Christian, Volz, Andreas, Heumann, Klaus, ...
The PEDANT genome database provides exhaustive annotation of 468 genomes by a broad set of bioinformatics algorithms. We describe recent developments of the PEDANT Web server. The all-new Graphical...
Brzuszkiewicz, Elzbieta, Brüggemann, Holger, Liesegang, Heiko, Emmerth, Melanie, Ölschläger, Tobias, Nagy, Gábor, ...
Uropathogenic Escherichia coli (UPEC) strain 536 (O6:K15:H31) is one of the model organisms of extraintestinal pathogenic E. coli (ExPEC). To analyze this strain's genetic basis of urovirulence, we...
Are intelligent e-commerce agents partners or predators?
Mobile agents are changing the face of e-business and reshaping business models. In the process these agents are also posing new concerns regarding who really owns information. EBay Inc. made...
Risk-Premia, Carry-Trade Dynamics, and Speculative Efficiency of Currency Markets
Foreign exchange market efficiency is commonly investigated by Fama-regression tests of uncovered interest parity (UIP). In this paper, we conjecture a speculative UIP relationship which implies that...
Die Allianz der neuen Mächte? Zur politischen Kooperation zwischen Indien und China
India and China have intensified their bilateral relations since the 1990s significantly. The rapprochement was fostered by a new convergence of interests for instance in the field of security,...
POLITICAL SCIENCE TOOLS FOR ASSESSING FEASIBILITY AND SUSTAINABILITY OF REFORMS
Wimmer, Andreas, De Soysa, Indra, Wagner, Christian
We were asked by the Independent Evaluation Office to outline political science methods for assessing the chances of reform implementation in an ex-ante fashion. We agreed to illustrate how these...
Christian Wagner, Gabriel Wittum
. In this paper, the adaptive filtering method is introduced and analysed. This method leads to robust algorithms for the solution of systems of linear equations which arise from the discretisation...
Consideraciones didácticas sobre la Dinámica
En: Revista de bachillerato Madrid 1981, suplemento del n. 17; p. 27-39
Reforming minute reserve policy in Germany: A step towards efficient markets?
Rammerstorfer, Margarethe, Wagner, Christian
The present paper provides an empirical assessment of the effects associated with the reorganization of minute reserve markets in Germany. As the aim of the regulator is to assure a competitive...