TY - JOUR
AU - Krimphove, Dieter
ID - 2006
IS - Heft 3 (44. Jahrgang)
JF - EuR Europarecht
TI - Europäisches Religions- und Weltanschauungsrecht
ER -
TY - CHAP
AU - Krimphove, Dieter
ED - Aicher, Josef
ED - Fina, Siegfried
ID - 2010
T2 - Festschrift für Manfred Straube
TI - Verfahren und Gerechtigkeit: Gedanken zur Ökonomik von Streitentscheidungsverfahren
ER -
TY - CONF
AB - One of the prominent challenges in mobile robotics is to develop control methodologies that allow the adaptation to dynamic and unforeseen environments. The classic approach of hand-coded controllers is very efficient for well-defined tasks and specific environments but poor in adapting to changing environmental conditions. One alternative approach is the application of evolutionary algorithms which need, in turn, easily evolvable representations of controllers. In this paper, we investigate one promising approach of an artificial hormone system as a control paradigm which is believed to be easily optimized by evolutionary processes. In a first step of this research, we focus on the simple task of collision avoidance. We present a brief mathematical analysis of this controller approach and an implementation of the controller on a mobile robot to check the feasibility in principle of our approach. The task is successfully accomplished and we conclude with a discussion of the hormone dynamics in the robot.
AU - Stradner, Jürgen
AU - Hamann, Heiko
AU - Schmickl, Thomas
AU - Crailsheim, Karl
ID - 20254
SN - 9781424438037
T2 - 2009 IEEE/RSJ International Conference on Intelligent Robots and Systems
TI - Analysis and implementation of an Artificial Homeostatic Hormone System: A first case study in robotic hardware
ER -
TY - JOUR
AB - By compiling macroscopic models we analyze the adaptive behavior in a swarm of autonomous robots generated by a bio-inspired, distributed control algorithm. We developed two macroscopic models by taking two different perspectives: A Stock & Flow model, which is simple to implement and fast to simulate, and a spatially resolved model based on diffusion processes. These two models were compared concerning their prediction quality and their analytical power: One model allowed easy identification of the major feedback loops governing the swarm behavior. The other model allowed analysis of the expected shapes and positions of observable robot clusters. We found a high correlation in the challenges posed by both modeling techniques and we highlighted the inherent problems of inferring emergent macroscopic rules from a microscopic description of swarm behavior.
AU - Schmickl, Thomas
AU - Hamann, Heiko
AU - Wörn, Heinz
AU - Crailsheim, Karl
ID - 20255
IS - 9
JF - Robotics and Autonomous Systems
SN - 0921-8890
TI - Two different approaches to a macroscopic model of a bio-inspired robotic swarm
VL - 6
ER -
TY - CONF
AU - Hamann, Heiko
AU - Troch, Inge
AU - Breitenecker, F.
ID - 20259
T2 - MATHMOD 2009 - 6th Vienna International Conference on Mathematical Modelling
TI - Pattern Formation as a Transient Phenomenon in the Nonlinear Dynamics of a Multi-Agent System
ER -
TY - GEN
AU - Kundisch, Dennis
ID - 2830
TI - Editorial Preface
ER -
TY - THES
AU - Oberschelp, Oliver
ID - 25854
TI - Strukturierter Entwurf selbstoptimierender mechatronischer Systeme
VL - 241
ER -
TY - THES
AU - Stollt, Guido
ID - 25855
TI - Verfahren zur strukturierten Vorausschau in globalen Umfeldern produzierender Unternehmen
VL - 242
ER -
TY - THES
AU - Wenzelmann, Christoph
ID - 25856
TI - Methode zur zukunftsorientierten Entwicklung und Umsetzung von Strategieoptionen unter Berücksichtigung des antizipierten Wettbewerbsverhaltens
VL - 243
ER -
TY - THES
AU - Brüseke, Ute
ID - 25857
TI - Einsatz der Bibliometrie für das Technologiemanagement
VL - 244
ER -
TY - THES
AU - Timm, Thorsten
ID - 25858
TI - Ein Verfahren zur hierarchischen Struktur-, Dimensions- und Material- bedarfsplanung von Fertigungssystemen
VL - 245
ER -
TY - THES
AU - Griese, Björn
ID - 25859
TI - Adaptive Echtzeitkommunikationsnetze
VL - 246
ER -
TY - THES
AU - Niemann, Jörg-Christian
ID - 25860
TI - Ressourceneffiziente Schaltungstechnik eingebetteter Parallelrechner
VL - 247
ER -
TY - THES
AU - Kaiser, Ingo
ID - 25861
TI - Systematik zur Entwicklung mechatronischer Systeme in der Technologie MID
VL - 248
ER -
TY - THES
AU - Gans, Jan Erik
ID - 25862
TI - Neu- und Anpassungsplanung der Struktur von getakteten Fließproduktionssystemen für variantenreiche Serienprodukte in der Montage
VL - 249
ER -
TY - GEN
ED - Gausemeier, Jürgen
ED - Rammig, Franz-Josef
ED - Trächtler, Ansgar
ED - Schäfer, Wilhelm
ID - 25863
TI - 6. Paderborner Workshop Entwurf mechatronischer Systeme
VL - 250
ER -
TY - THES
AU - Lessmann, Johannes
ID - 25864
TI - Protocols for Telephone Communications in Wireless Multi-Hop Ad Hoc Networks
VL - 251
ER -
TY - THES
AU - Klöpper, Benjamin
ID - 25866
TI - Ein Beitrag zur Verhaltensplanung für interagierende intelligente mechatronische Systeme in nicht-deterministischen Umgebungen
VL - 253
ER -
TY - THES
AU - Low, Cheng Yee
ID - 25867
TI - A Methodology to Manage the Transition from the Principle Solution towards the Controller Design of Advanced Mechatronic Systems
VL - 254
ER -
TY - THES
AU - Xu, Feng
ID - 25868
TI - Resource-Efficient Multi-Antenna Designs for Mobile Ad Hoc Networks
VL - 255
ER -
TY - THES
AU - Müller, Thomas
ID - 25869
TI - Integration von Verlässlichkeitsanalysen und -konzepten innerhalb der Entwicklungsmethodik mechatronischer Systeme
VL - 256
ER -
TY - THES
AU - Mense, Mario
ID - 25870
TI - On Fault-Tolerant Data Placement in Storage Networks
VL - 260
ER -
TY - THES
AU - Altemeier, Simon
ID - 25871
TI - Kostenoptimale Kapazitätsabstimmung in einer getakteten Variantenfließlinie unter expliziter Berücksichtigung des Unterstützereinsatzes und unterschiedlicher Planungszeiträume
VL - 262
ER -
TY - THES
AU - Mahajan, Kiran
ID - 25872
TI - A combined simulation and optimization based method for predictive-reactive scheduling of flexible production systems subject to execution exceptions
VL - 263
ER -
TY - BOOK
AU - Christiansen, Sven-Kelana
ID - 25873
TI - Methode zur Klassifikation und Entwicklung reifegradbasierter leistungsbewertungs- und Leistungssteigerungsmodelle
VL - 264
ER -
TY - BOOK
AU - Gausemeier, Jürgen
ID - 25874
TI - 5. Symposium für Vorausschau und Technologieplanung
VL - 265
ER -
TY - BOOK
AU - Kaulmann, Tim
ID - 25875
TI - Ressourceneffiziente Realisierung Pulscodierter Neuronaler Netze
VL - 266
ER -
TY - BOOK
AU - Wehrmeister, Marco A.
ID - 25876
TI - An Aspect-Oriented Model-Driven Engineering Approach for Distributes Embedded Real-Time Systems
VL - 267
ER -
TY - BOOK
AU - Danne, Christoph
ID - 25877
TI - Assessing the Cost of Assortment Complexity in Consumer Goods Supply Chains by Reconfiguration of Inventory and Production Planning Parameters in Response to Assortment Changes
VL - 268
ER -
TY - BOOK
AU - Stoll, Karsten
ID - 25879
TI - Planung und Konzipierung von Marktleistungen
VL - 270
ER -
TY - JOUR
AU - Betz, Stefan
ID - 2604
JF - Der Betriebswirt
TI - Standortwahl als Entscheidungsproblem des Logistikcontrollings
VL - 50
ER -
TY - JOUR
AB - In this paper, we consider a model for precipitation experiments based on the population balance equation. The study revealed a high sensitivity of the system with respect to the modeling of intrinsic parameters, motivating a comprehensive validation of the estimates. In the forward simulation the impact of the influencing parameters including surface energy, nucleus size and distribution is investigated. Subsequently we construct a simplified model of the precipitation process in such a way that it is orbitally flat in terms of control theory, which enables the inverse calculation of the parameters. The numerical results of the inverse simulation for the interfacial energy have been compared to a physical model. The possibility of solving the inverse problem provides a promising way of estimating hardly measurable quantities for more complex molecules.
AU - Vassilev, Vassil
AU - Gröschel, Michael
AU - Schmid, Hans-Joachim
AU - Peukert, Wolfgang
AU - Leugering, Günter
ID - 26137
IS - 6
JF - Chemical Engineering Science
SN - 0009-2509
TI - Interfacial energy estimation in a precipitation reaction using the flatness based control of the moment trajectories
VL - 65
ER -
TY - JOUR
AB - In this work, a new model for the simulation of nanostructured aggregates by simultaneous coagulation, sintering and surface growth is presented. Coagulation is treated as cluster–cluster agglomeration along the line connecting the center of mass of both agglomerates and is implemented using a Monte Carlo algorithm. Sintering is modeled as successive overlapping of spheres which cause reduction in the surface area based on a rate law for surface reduction. Surface growth is modeled as an increase in primary particle diameter, e.g. as a result of surface reactions. The evolved aggregates are analyzed by calculating their fractal dimension, radius of gyration, mobility diameter and mobility shape factor. It is found that the aggregates structure tends to be more compact when introducing the surface growth in shorter time comparing to the coagulation-sintering step only. Fractal dimension and the mobility shape factor of the resulting aggregates are correlated to an effective dimensionless time that combines the characteristic times of these three fundamental mechanisms. It is shown that the mobility diameter in the free molecular regime is not proportional to the radius of gyration. A power law relation that correlates the aggregates projected area and the equivalent number of primary particles is found to be in a very good agreement with estimates published in literature.
AU - Al Zaitone, Belal
AU - Schmid, Hans-Joachim
AU - Peukert, Wolfgang
ID - 26138
IS - 11
JF - Journal of Aerosol Science
SN - 0021-8502
TI - Simulation of structure and mobility of aggregates formed by simultaneous coagulation, sintering and surface growth
VL - 40
ER -
TY - JOUR
AB - The study presents first experimental results of the transfer of magnetite nanoparticles from an aqueous to a second non-miscible non-aqueous liquid phase. The transfer is based on the adsorption of macromolecular surfactants onto the particle surface at the liquid–liquid interface. For a successful direct phase transfer, it is essential to have cations, like ammonium ions, present in the aqueous phase as well as a threshold concentration of surfactant in the organic liquid phase. While penetrating the liquid–liquid interface, the particles are covered with the surfactant and therefore a partial de-agglomeration is initiated. Based on literature and experimental data a mechanism of surfactant adsorption is proposed. The competing adsorption of the surfactant molecules at the liquid–liquid interface leads to the formation of emulsions and therefore to a hindrance for particles passing the interface. Nevertheless a high efficiency of 100% yield can be reached using optimized process parameters for the phase transfer process.
AU - Machunsky, Stefanie
AU - Grimm, Philipp
AU - Schmid, Hans-Joachim
AU - Peuker, Urs A.
ID - 26139
IS - 1-3
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
SN - 0927-7757
TI - Liquid–liquid phase transfer of magnetite nanoparticles
VL - 348
ER -
TY - JOUR
AB - The viscous-flow sintering of different agglomerate particle morphologies is studied by three-dimensional computer simulations based on the concept of fractional volume of fluid. For a fundamental understanding of particle sintering characteristics, the neck growth kinetics in agglomerate chains and in doublets consisting of differently sized primary particles is investigated. Results show that different sintering contacts in agglomerates even during the first stages are not completely independent from each other, even though differences are small. The neck growth kinetics of differently sized primary particles is determined by the smaller one up to a size difference by a factor of approximately 2, whereas for larger size differences, the kinetics becomes faster. In particular, the agglomerate sintering kinetics is investigated for particle chains of different lengths and for different particle morphologies each having ten primary particles and nine initial sintering contacts. For agglomerate chains, the kinetics approximately can be normalized by using the radius of the fully coalesced sphere. In general, different agglomerate morphologies show equal kinetics during the first sintering stages, whereas during advanced stages, compact morphologies show significantly faster sintering progress than more open morphologies. Hence, the overall kinetics cannot be described by simply using constant morphology correction factors such as fractal dimension or mean coordination number which are used in common sintering models. However, for the first stages of viscous-flow agglomerate sintering, which are the most important for many particle processes, a sintering equation is presented. Although we use agglomerates consisting of spherical primary particles, our methodology can be applied to other aggregate geometries as well.
AU - Kirchhof, M. J.
AU - Schmid, Hans-Joachim
AU - Peukert, W.
ID - 26140
IS - 2
JF - Physical Review E
SN - 1539-3755
TI - Three-dimensional simulation of viscous-flow agglomerate sintering
VL - 80
ER -
TY - THES
AU - Huber, Daniel
ID - 26183
TI - Geregelte Vereinfachung hierarchischer Partitionen von Modellen in der Materialflusssimulation
VL - 277
ER -
TY - JOUR
AU - Sperling, Jan
AU - Vogel, W.
ID - 26360
JF - Physical Review A
SN - 1050-2947
TI - Verifying continuous-variable entanglement in finite spaces
ER -
TY - JOUR
AU - Sperling, Jan
AU - Vogel, W.
ID - 26361
JF - Physical Review A
SN - 1050-2947
TI - Representation of entanglement by negative quasiprobabilities
ER -
TY - JOUR
AU - Sperling, Jan
AU - Vogel, W.
ID - 26362
JF - Physical Review A
SN - 1050-2947
TI - Necessary and sufficient conditions for bipartite entanglement
ER -
TY - JOUR
AU - Dzienziol, J.
AU - Kundisch, Dennis
ID - 2649
IS - 4
JF - Kredit und Kapital
TI - Optimale Darlehensbündel in der privaten Immobilienfinanzierung
VL - 42
ER -
TY - JOUR
AU - Kundisch, Dennis
AU - Klein, C.
ID - 2650
IS - 3
JF - Zeitschrift für Bankrecht und Bankwirtschaft
TI - Zur Preissetzung verschiedener Emittenten bei Indexzertifikaten auf den DAX
VL - 21
ER -
TY - JOUR
AU - Kundisch, Dennis
AU - Klein, C.
ID - 2651
IS - 22
JF - Der Betrieb
TI - Der Tracking Error von indexnachbildenden Instrumenten auf den DAX - eine empirische Analyse des ETFs DAX EX sowie zehn Indexzertifikaten
VL - 62
ER -
TY - BOOK
ED - Hellmich, Frank
ED - Wernke, Stephan
ID - 26728
TI - Lernstrategien im Grundschulalter. Konzepte, Befunde und praktische Implikationen
ER -
TY - CHAP
AU - Höntges, Jens
AU - Günther, Frederike
AU - Hellmich, Frank
ED - Neubrand , Michael
ID - 26760
T2 - Beiträge zum Mathematikunterricht 2009
TI - Diagnose mathematischer Basiskompetenzen im Kindergarten
ER -
TY - CHAP
AU - Hellmich, Frank
AU - Läsche, Johannes
ED - Röhner, Charlotte
ED - Henrichwark, Claudia
ED - Hopf, Michaela
ID - 26761
T2 - Europäisierung der Bildung. Konsequenzen und Herausforderungen für die Grundschulpädagogik
TI - Lesestrategien und Lesekompetenzen bei Kindern am Ende der Grundschulzeit
ER -
TY - JOUR
AU - Hellmich, Frank
ID - 26762
JF - MNU-PRIMAr
TI - Mathematische Basiskompetenzen im Vorschulalter erkennen und deuten
VL - 1
ER -
TY - CHAP
AU - Wernke, Stephan
AU - Hellmich, Frank
ED - Wernke, Stephan
ED - Hellmich, Frank
ID - 26763
T2 - Lernstrategien im Grundschulalter. Konzepte, Befunde und praktische Implikationen
TI - Was sind Lernstrategien ... und warum sind sie wichtig?
ER -
TY - CHAP
AU - Hellmich, Frank
AU - Höntges, Jens
ED - Hellmich, Frank
ED - Wernke, Stephan
ID - 26764
T2 - Lernstrategien im Grundschulalter. Konzepte, Befunde und praktische Implikationen
TI - Möglichkeiten der Erfassung von Lesestrategien im Leseunterricht der Grundschule
ER -
TY - JOUR
AU - Shi, Lijie
AU - Wudy, Stefan A
AU - Buyken, Anette
AU - Hartmann, Michaela F
AU - Remer, Thomas
ID - 26893
JF - The American Journal of Clinical Nutrition
SN - 0002-9165
TI - Body fat and animal protein intakes are associated with adrenal androgen secretion in children
ER -
TY - JOUR
AU - Karaolis-Danckert, Nadina
AU - Buyken, Anette
AU - Sonntag, Antje
AU - Kroke, Anja
ID - 26894
JF - The American Journal of Clinical Nutrition
SN - 0002-9165
TI - Birth and early life influences on the timing of puberty onset: results from the DONALD (DOrtmund Nutritional and Anthropometric Longitudinally Designed) Study
ER -
TY - JOUR
AU - Cheng, Guo
AU - Gerlach, Steffi
AU - Libuda, Lars
AU - Kranz, Sibylle
AU - Günther, Anke L. B.
AU - Karaolis-Danckert, Nadina
AU - Kroke, Anja
AU - Buyken, Anette
ID - 26895
JF - The Journal of Nutrition
SN - 1541-6100
TI - Diet Quality in Childhood Is Prospectively Associated with the Timing of Puberty but Not with Body Composition at Puberty Onset
ER -
TY - JOUR
AU - Günther, Anke L. B.
AU - Karaolis-Danckert, Nadina
AU - Kroke, Anja
AU - Remer, Thomas
AU - Buyken, Anette
ID - 26896
JF - The Journal of Nutrition
SN - 1541-6100
TI - Dietary Protein Intake throughout Childhood Is Associated with the Timing of Puberty
ER -
TY - JOUR
AU - Wehrheim, Heike
AU - Wonisch, Daniel
ID - 3199
IS - 2
JF - Electr. Notes Theor. Comput. Sci.
TI - Compositional {CSP} Traces Refinement Checking
ER -
TY - JOUR
AU - Ruhroth, Thomas
AU - Wehrheim, Heike
ID - 3200
JF - Electr. Notes Theor. Comput. Sci.
TI - Static Class Elements for Object-Z
ER -
TY - CONF
AU - Ruhroth, Thomas
AU - Voigt, Hendrik
AU - Wehrheim, Heike
ID - 3201
T2 - 35th Euromicro Conference on Software Engineering and Advanced Applications, {SEAA} 2009, Patras, Greece, August 27-29, 2009, Proceedings
TI - Measure, Diagnose, Refactor: {A} Formal Quality Cycle for Software Models
ER -
TY - GEN
ED - Leuschel, Michael
ED - Wehrheim, Heike
ID - 3202
SN - 978-3-642-00254-0
TI - Integrated Formal Methods, 7th International Conference, {IFM} 2009, D{\"{u}}sseldorf, Germany, February 16-19, 2009. Proceedings
ER -
TY - CONF
AU - Becker, Jörg
AU - Beverungen, Daniel
AU - Blinn, Nadine
AU - Knackstedt, Ralf
AU - Nüttgens, Markus
AU - Thomas, Oliver
AU - Fellmann, Michael
ID - 3473
T2 - 29th International RESER Conference
TI - Productivity management for customer solutions --- Towards a performance management system for efficient service value networks
ER -
TY - CONF
AU - Becker, Jörg
AU - Beverungen, Daniel
AU - Knackstedt, Ralf
AU - Matzner, Martin
ID - 3474
SN - 1530-1605
T2 - Proceedings of the 42th Hawaii International Conference on System Sciences
TI - Configurative Service Engineering --- A Rule-Based Configuration Approach for Versatile Service Processes in Corrective Maintenance
ER -
TY - CONF
AU - Becker, Jörg
AU - Beverungen, Daniel
AU - Knackstedt, Ralf
AU - Matzner, Martin
AU - Müller, Oliver
AU - Pöppelbuß, Jens
ID - 3475
T2 - Americas Conference on Information Systems
TI - A Framework for Design Research in the Service Science Discipline
ER -
TY - CONF
AU - Becker, Jörg
AU - Beverungen, Daniel
AU - Matzner, Martin
AU - Müller, Oliver
ED - Alt, Rainer
ED - Fähnrich, Klaus-Peter
ED - Franczyk, Bogdan
ID - 3476
SN - 978-3-8325-2169-1
T2 - Proceedings of the First International Symposium on Services Science (ISSS'09)
TI - Design Requirements to Support Information Flows for Providing Customer Solutions: A Case Study in the Mechanical Engineering Sector
ER -
TY - JOUR
AU - Becker, Jörg
AU - Beverungen, Daniel
AU - Knackstedt, Ralf
AU - Müller, Oliver
ID - 3506
IS - 1
JF - Enterprise Modelling and Information Systems Architectures
TI - Model-Based Decision Support for the Customer-Specific Configuration of Value Bundles
ER -
TY - CHAP
AU - Harteis, Christian
ED - McLean, Rupert
ED - Wilson, David
ID - 3617
T2 - International handbook of education for the changing World of Work
TI - Professional learning and TVET: challenges and perspectives for teachers and instructors
ER -
TY - CHAP
AU - Mulder, Regina H
AU - Harteis, Christian
AU - Gruber, Hans
ED - Zlatkin-Troitschanskaja, Olga
ED - Beck, Klaus
ED - Sembill, Detlef
ED - Nickolaus, Reinhard
ED - Mulder, Regina
ID - 3650
T2 - Lehrprofessionalität - Bedingungen, Genese, Wirkungen und Messung
TI - Lernen von Lehrenden im Arbeitsprozess
ER -
TY - JOUR
AB - Erbschaftsteuer | Inheritance tax | Steuerreform | Tax reform | Steuerwirkung | Tax effects | Steuereinnahmen | Tax revenue | Mikrodaten | Microdata | Simulation | Deutschland | Germany
AU - Maiterth, Ralf
AU - Houben, Henriette
AU - Broekelschen, Wiebke
AU - Müller, Jens
AU - Sureth-Sloane, Caren
ID - 3693
JF - Statistik und Wissenschaft
KW - Erbschaftsteuer | Inheritance tax | Steuerreform | Tax reform | Steuerwirkung | Tax effects | Steuereinnahmen | Tax revenue | Mikrodaten | Microdata | Simulation
TI - Mikroanalytische Begleitung der Steuerpolitik am Beispiel der Erbschaftsteuerreform
ER -
TY - CHAP
AU - Heid, Helmut
AU - Harteis, Christian
ED - Tippelt, Rudolf
ED - Schmidt, Bernd
ID - 3713
T2 - Handbuch Bildungsforschung
TI - Wirtschaft und Betrieb
ER -
TY - GEN
AU - Schröer, Carsten
ID - 2880
TI - Hierarchisches Clustering mit minimalen Cluster-Durchmessern
ER -
TY - CONF
AU - Schulz-Zander, Renate
AU - Eickelmann, Birgit
ED - Santos, Elder R.
ED - Miletto, Evandro M.
ED - Turcsanyi-Szabo, Marta
ID - 28922
T2 - Proceedings – 9th WCCE. IFIP World Conference on Computers in Education
TI - Teacher Collaboration Concerning ICT-Use and its Essential Conditions
ER -
TY - GEN
AU - Schulz-Zander, Renate
AU - Eickelmann, Birgit
ID - 28926
TI - E-teaching plus. Die webbasierte Lernumgebung für situiertes Lernen mit Unterrichtsvideos
ER -
TY - CHAP
AU - Schulz-Zander, Renate
AU - Eickelmann, Birgit
ED - Plomp, Tjeerd
ED - Anderson, Ronald E.
ED - Law, Nancy
ED - Quale, Andreas
ID - 28927
T2 - Cross-national Information and Communication Technology. Policies and Practices in Education
TI - National Policies and Practices on ICT in Education: Germany
ER -
TY - GEN
AU - Liske, Gennadij
ID - 2896
TI - Analyse und Evaluation eines identitätsbasierten Signcryption-Verfahrens
ER -
TY - GEN
AU - Scholz, Christoph
ID - 2904
TI - Die Schwierigkeit des k-Median Clusterings für Bregman-Divergenzen
ER -
TY - THES
AU - Ackermann, Marcel Rudolf
ID - 2911
TI - Algorithms for the Bregman k-Median Problem
ER -
TY - CHAP
AU - Kakvi, Saqib
ID - 2920
SN - 0302-9743
T2 - Lecture Notes in Computer Science
TI - Reinforcement Learning for Blackjack
ER -
TY - CHAP
AU - Ackermann, Marcel R.
AU - Blömer, Johannes
ID - 2995
SN - 9780898716801
T2 - Proceedings of the Twentieth Annual ACM-SIAM Symposium on Discrete Algorithms
TI - Coresets and Approximate Clustering for Bregman Divergences
ER -
TY - JOUR
AU - Blömer, Johannes
AU - Naewe, Stefanie
ID - 2999
IS - 18
JF - Theoretical Computer Science
KW - Geometry of numbers
KW - Lattices
KW - Shortest vectors
SN - 0304-3975
TI - Sampling methods for shortest vectors, closest vectors and successive minima
ER -
TY - CHAP
AU - Schrieb, Jonas
AU - Wehrheim, Heike
AU - Wonisch, Daniel
ID - 3000
SN - 0302-9743
T2 - FM 2009: Formal Methods
TI - Three-Valued Spotlight Abstractions
ER -
TY - JOUR
AU - Gries, Thomas
AU - Kraft, Manfred
AU - Meierrieks, Daniel
ID - 3056
IS - 12
JF - World Development
TI - Linkages between Financial Deepening, Trade Openness and Economic Development: Causality Evidence from Sub-Saharan Africa
VL - 37
ER -
TY - JOUR
AU - Gries, Thomas
AU - Naudé, Wim
ID - 3057
IS - 3
JF - Journal of Regional Science
TI - The Optimal Distance to Port for Exporting Firms
VL - 49
ER -
TY - JOUR
AU - Gries, Thomas
AU - Naudé, Wim
ID - 3059
IS - 7
JF - Regional Studies
TI - Explaining Regional Export Performance in a Developing Country: The Role of Geography and Relative Factor Endowments
VL - 43
ER -
TY - JOUR
AU - Gries, Thomas
AU - Naudé, Wim
ID - 3060
IS - 3
JF - Innovation: The European Journal of Social Science Research
TI - Entrepreneurship and regional economic growth: towards a general theory of start-ups
VL - 22
ER -
TY - CONF
AU - Jager, Tibor
AU - Schwenk, Jörg
ID - 3142
T2 - Advances in Cryptology - ASIACRYPT 2009, 15th International Conference on the Theory and Application of Cryptology and Information Security, Tokyo, Japan, December 6-10, 2009. Proceedings
TI - On the Analysis of Cryptographic Assumptions in the Generic Ring Model
ER -
TY - JOUR
AU - Buyken, Anette
AU - Flood, Victoria
AU - Rochtchina, Elena
AU - Nestel, Paul
AU - Brand-Miller, Jennie
AU - Mitchell, Paul
ID - 27008
JF - The Journal of Nutrition
SN - 1541-6100
TI - Modifications in Dietary Fat Quality Are Associated with Changes in Serum Lipids of Older Adults Independently of Lipid Medication
ER -
TY - JOUR
AU - Muckelbauer, Rebecca
AU - Libuda, Lars
AU - Clausen, Kerstin
AU - Toschke, André M.
AU - Reinehr, Thomas
AU - Kersting, Mathilde
ID - 27080
JF - Obesity
SN - 1930-7381
TI - Immigrational Background Affects the Effectiveness of a School-based Overweight Prevention Program Promoting Water Consumption
ER -
TY - JOUR
AB - AbstractObjectiveDrinking habits in children are associated with diet quality, but validated assessment tools for large-scale studies in young children are lacking. Therefore, we validated a self-completion 24 h recall questionnaire (RQ) focusing on beverage consumption with a 24 h weighed record (WR).DesignThirty-five voluntary participants from the DONALD (Dortmund Nutritional and Anthropometric Longitudinally Designed) Study cohort aged 7–9 years completed the RQ. The illustrated RQ required ticking the number of glasses of seven beverage categories consumed in five time intervals in the previous 24 h. As a reference, parents completed weighed records of their child’s diet. Agreement between the RQ and WR was tested by classification into consumers and non-consumers (kappa coefficients, κ), by the children’s ability to estimate the exact beverage and total volume consumed (Wilcoxon signed-rank test, Spearman rank correlation), and by ranking children according to reported beverage volumes.ResultsThe RQ and WR showed a good level of agreement for classifying participants into consumers and non-consumers of the single beverage categories (κ values between 0·78 and 0·94). Correlation coefficients for the volume of the single categories ranged between 0·81 and 0·91. The total beverage volume was overestimated in the RQ, on average, by 114 ml (P = 0·015). Agreement in ranking into tertiles by beverage volume was moderate to good for juice/soft drinks (κ = 0·44), milk (κ = 0·57) and water (κ = 0·70), but fair for the total beverage volume (κ = 0·23).ConclusionsOur self-completion 24 h RQ could estimate the consumption of several beverage categories among young children at the group level, but quantification of total beverage volume was flawed.
AU - Muckelbauer, Rebecca
AU - Libuda, Lars
AU - Kersting, Mathilde
ID - 27132
JF - Public Health Nutrition
SN - 1368-9800
TI - Relative validity of a self-completion 24 h recall questionnaire to assess beverage consumption among schoolchildren aged 7 to 9 years
ER -
TY - JOUR
AU - Cheng, G.
AU - Karaolis-Danckert, N.
AU - Libuda, Lars
AU - Bolzenius, K.
AU - Remer, T.
AU - Buyken, Anette E.
ID - 27133
JF - American Journal of Epidemiology
SN - 0002-9262
TI - Relation of Dietary Glycemic Index, Glycemic Load, and Fiber and Whole-Grain Intakes During Puberty to the Concurrent Development of Percent Body Fat and Body Mass Index
ER -
TY - JOUR
AU - Muckelbauer, R.
AU - Libuda, Lars
AU - Clausen, K.
AU - Kersting, M.
ID - 27134
JF - Child: Care, Health and Development
SN - 0305-1862
TI - Long-term process evaluation of a school-based programme for overweight prevention
ER -
TY - JOUR
AU - Muckelbauer, Rebecca
AU - Libuda, Lars
AU - Clausen, Kerstin
AU - Reinehr, Thomas
AU - Kersting, Mathilde
ID - 27135
JF - Obesity Facts
SN - 1662-4033
TI - A Simple Dietary Intervention in the School Setting Decreased Incidence of Overweight in Children
ER -
TY - JOUR
AU - Muckelbauer, R.
AU - Libuda, Lars
AU - Clausen, K.
AU - Toschke, A. M.
AU - Reinehr, T.
AU - Kersting, M.
ID - 27136
JF - PEDIATRICS
SN - 0031-4005
TI - Promotion and Provision of Drinking Water in Schools for Overweight Prevention: Randomized, Controlled Cluster Trial
ER -
TY - CHAP
AU - Eickelmann, Birgit
AU - Schulz-Zander, Renate
AU - Gerick, Julia
ED - Röhner, Charlotte
ED - Hopf, Michaela
ED - Henrichwark, Claudia
ID - 27410
T2 - Europäisierung der Bildung - Konsequenzen und Herausforderungen für die Grundschulpädagogik
TI - Erfolgreich Computer und Internet in Grundschulen integrieren – eine empirische Analyse aus Sicht der Schulentwicklungsforschung
VL - 13
ER -
TY - GEN
AU - Dumitrescu, Theodor
AU - Kepper, Johannes
AU - Kornstädt, Andreas
AU - Röwenstrunk, Daniel
AU - Roland, Perry
AU - Sapp, Craig
AU - Selfridge-Field, Eleanor
AU - Wiering, Frans
AU - Wiggins, Geraint A.
ID - 27469
TI - The Dagstuhl Core
ER -
TY - JOUR
AU - Libuda, Lars
AU - Kersting, Mathilde
ID - 27525
JF - Current Opinion in Clinical Nutrition and Metabolic Care
SN - 1363-1950
TI - Soft drinks and body weight development in childhood: is there a relationship?
ER -
TY - JOUR
AU - Libuda, Lars
AU - Muckelbauer, R.
AU - Kersting, M.
ID - 27583
JF - Journal für Ernährungsmedizin
TI - Getränkeverzehr und Übergewicht bei Kindern
VL - 11
ER -
TY - JOUR
AU - Libuda, Lars
ID - 27584
IS - 8
JF - Ernährungsumschau
TI - Einfluss des Konsums von Erfrischungsgetränken auf den Ernährungs- und Gesundheits¬status von Kindern
VL - 56
ER -
TY - JOUR
AU - Libuda, Lars
AU - Remer, Thomas
AU - Kersting, M.
ID - 27585
IS - 3
JF - Ernährungsumschau
TI - DONALD News: Zusammenhang zwischen dem Verzehr von Erfrischungsgetränken und dem Knochenstatus von Kindern und Jugendlichen.
VL - 56
ER -
TY - JOUR
AU - Toeller, M.
AU - Buyken, Anette
AU - Heitkamp, G.
AU - Scherbaum, W.A.
AU - Krans, H.M.J
AU - Fuller, J.H.
ID - 27707
JF - Experimental and Clinical Endocrinology & Diabetes
SN - 0947-7349
TI - Associations of fat and cholesterol intake with serum lipid levels and cardiovascular disease: The EURODIAB IDDM Complications Study*
ER -
TY - JOUR
AB - AbstractObjectiveThe present paper describes the systematic development of an FFQ to assess the intake of fatty acids and antioxidants in school-aged children. In addition, a validation study applying 24 h dietary recalls was performed.DesignUsing the variance-based Max_r method, a list of eighty-two foods was compiled from data obtained by 3 d weighed dietary records. The foods were used to design an FFQ, the comprehensibility of which was evaluated in a feasibility study. In addition, the FFQ was validated in a subset of 101 children from the German Infant Nutritional Intervention Study (GINI PLUS) against one 24 h dietary recall.ResultsThe feasibility study attested a good acceptance of the FFQ. Mean intake of foods compared well between the FFQ and the 24 h dietary recall, although intake data generated from the FFQ tended to be higher. This difference became less apparent at the nutrient level, although the estimated average consumption of arachidonic acid and EPA using the FFQ still exceeded values recorded with the 24 h recall method by 45 % and 29 %, respectively.ConclusionsOn the basis of the systematic selection process of the food list, the established practicability of the FFQ and the overall plausibility of the results, the use of this FFQ is justified in future epidemiological studies.
AU - Stiegler, Petra
AU - Sausenthaler, Stefanie
AU - Buyken, Anette
AU - Rzehak, Peter
AU - Czech, Daniel
AU - Linseisen, Jakob
AU - Kroke, Anja
AU - Gedrich, Kurt
AU - Robertson, Claire
AU - Heinrich, Joachim
ID - 27716
JF - Public Health Nutrition
SN - 1368-9800
TI - A new FFQ designed to measure the intake of fatty acids and antioxidants in children
ER -
TY - JOUR
AU - Shi, Lijie
AU - Berkemeyer, Shoma
AU - Buyken, Anette
AU - Maser-Gluth, Christiane
AU - Remer, Thomas
ID - 27722
JF - Metabolism
SN - 0026-0495
TI - Glucocorticoids and body fat associated with renal uric acid and oxalate, but not calcium excretion, in healthy children
ER -
TY - JOUR
AU - Buyken, Anette
AU - Günther, Anke LB
AU - Barclay, Alan
AU - Brand-Miller, Jennie
AU - Schulze, Matthias B
ID - 27751
JF - The American Journal of Clinical Nutrition
SN - 0002-9165
TI - Glycemic index in overweight development: distinguishing limited evidence from limits in evidence
ER -
TY - GEN
AU - Kundisch, Dennis
AU - Mittal, N.
AU - Nault, B.
ID - 2783
T2 - 10th Workshop on Information Systems and Economics (WISE)
TI - IT Productivity and Aggregation using Income Accounting
ER -
TY - CONF
AU - Kundisch, Dennis
AU - Zorzi, R.
ID - 2784
T2 - Proceedings of the 15th Amercas Conference on Information Systems (AMCIS)
TI - Enhancing the Quality of Financial Advice with Web 2.0 - An Approach considering Social Capital in the private Asset Allocation
ER -