@article{FissabreLohmann2012,
  author    = {Fissabre, Anke and Lohmann, Daniel},
  title     = {Verlust einer „tragenden Wand" : Das Haus der Jugend von Rudolf Schwarz in Aachen},
  series = {Bauwelt},
  volume    = {103},
  journal   = {Bauwelt},
  number    = {45},
  publisher = {Bauverlag BV},
  address   = {G{\"u}tersloh},
  issn      = {0005-6855},
  pages     = {6 -- 7},
  year      = {2012},
  language  = {de}
}
@article{FischerKowalskiPudasaini2012,
  author    = {Fischer, Jan-Thomas and Kowalski, Julia and Pudasaini, Shiva P.},
  title     = {Topographic curvature effects in applied avalanche modelling},
  series = {Cold Regions Science and Technology},
  volume    = {74-75},
  journal   = {Cold Regions Science and Technology},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-7441},
  doi       = {10.1016/j.coldregions.2012.01.005},
  pages     = {21 -- 30},
  year      = {2012},
  abstract  = {This paper describes the implementation of topographic curvature effects within the RApid Mass MovementS (RAMMS) snow avalanche simulation toolbox. RAMMS is based on a model similar to shallow water equations with a Coulomb friction relation and the velocity dependent Voellmy drag. It is used for snow avalanche risk assessment in Switzerland. The snow avalanche simulation relies on back calculation of observed avalanches. The calibration of the friction parameters depends on characteristics of the avalanche track. The topographic curvature terms are not yet included in the above mentioned classical model. Here, we fundamentally improve this model by mathematically and physically including the topographic curvature effects. By decomposing the velocity dependent friction into a topography dependent term that accounts for a curvature enhancement in the Coulomb friction, and a topography independent contribution similar to the classical Voellmy drag, we construct a general curvature dependent frictional resistance, and thus propose new extended model equations. With three site-specific examples, we compare the apparent frictional resistance of the new approach, which includes topographic curvature effects, to the classical one. Our simulation results demonstrate substantial effects of the curvature on the flow dynamics e.g., the dynamic pressure distribution along the slope. The comparison of resistance coefficients between the two models demonstrates that the physically based extension presents an improvement to the classical approach. Furthermore a practical example highlights its influence on the pressure outline in the run out zone of the avalanche. Snow avalanche dynamics modeling natural terrain curvature centrifugal force friction coefficients.},
  language  = {en}
}
@article{FerreinSteinbauerVassos2012,
  author    = {Ferrein, Alexander and Steinbauer, Gerald and Vassos, Stavros},
  title     = {Action-Based Imperative Programming with YAGI},
  pages     = {24 -- 31},
  year      = {2012},
  abstract  = {Many tasks for autonomous agents or robots are best described by a specification of the environment and a specification of the available actions the agent or robot can perform. Combining such a specification with the possibility to imperatively program a robot or agent is what we call the actionbased imperative programming. One of the most successful such approaches is Golog. In this paper, we draft a proposal for a new robot programming language YAGI, which is based on the action-based imperative programming paradigm. Our goal is to design a small, portable stand-alone YAGI interpreter. We combine the benefits of a principled domain specification with a clean, small and simple programming language, which does not exploit any side-effects from the implementation language. We discuss general requirements of action-based programming languages and outline YAGI, our action-based language approach which particularly aims at embeddability.},
  language  = {en}
}
@article{FerreinMeyer2012,
  author    = {Ferrein, Alexander and Meyer, Thomas},
  title     = {A Brief Overview of Artificial Intelligence in South Africa},
  series = {AI Magazine},
  volume    = {33},
  journal   = {AI Magazine},
  number    = {1},
  publisher = {AAAI},
  address   = {Menlo Park},
  issn      = {0738-4602},
  doi       = {10.1609/aimag.v33i1.2357},
  pages     = {99 -- 101},
  year      = {2012},
  abstract  = {South Africa in recent years is the establishment of a number of research hubs involved in AI activities ranging from mobile robotics and computational intelligence, to knowledge representation and reasoning, and human language technologies. In this survey we take the reader through a quick tour of the research being conducted at these hubs, and touch on an initiative to maintain and extend the current level of interest in AI research in the country.},
  language  = {en}
}
@article{FateriHoetterGebhardt2012,
  author    = {Fateri, Miranda and H{\"o}tter, Jan-Steffen and Gebhardt, Andreas},
  title     = {Experimental and Theoretical Investigation of Buckling Deformation of Fabricated Objects by Selective Laser Melting},
  series = {Physics Procedia},
  volume    = {39},
  journal   = {Physics Procedia},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1875-3892},
  doi       = {10.1016/j.phpro.2012.10.062},
  pages     = {464 -- 470},
  year      = {2012},
  abstract  = {Although Selective Laser Melting (SLM) process is an innovative manufacturing method, there are challenges such as inferior mechanical properties of fabricated objects. Regarding this, buckling deformation which is caused by thermal stress is one of the undesired mechanical properties which must be alleviated. As buckling deformation is more observable in hard to process materials, silver is selected to be studied theoretically and experimentally for this paper. Different scanning strategies are utilized and a Finite Element Method (FEM) is applied to calculate the temperature gradient in order to determine its effect on the buckling deformation of the objects from experiments.},
  language  = {en}
}
@article{EllrichLind2012,
  author    = {Ellrich, Thomas and Lind, Thorsten Patric},
  title     = {Die 'kalte Zwangsverwaltung' durch den Insolvenzverwalter},
  series = {Forderungs-Praktiker : WIKI},
  journal   = {Forderungs-Praktiker : WIKI},
  number    = {1},
  publisher = {FCH},
  address   = {Heidelberg},
  pages     = {16 -- 21},
  year      = {2012},
  language  = {de}
}
@article{EilmannRigling2012,
  author    = {Eilmann, Britta and Rigling, Andreas},
  title     = {Tree-growth analyses to estimate tree species' drought tolerance},
  series = {Tree Physiology},
  volume    = {32},
  journal   = {Tree Physiology},
  number    = {2},
  editor    = {Abrams, Marc},
  publisher = {Oxford University Press},
  address   = {Oxford},
  issn      = {0829-318X (Print)},
  doi       = {10.1093/treephys/tps004},
  pages     = {178 -- 187},
  year      = {2012},
  abstract  = {Climate change is challenging forestry management and practices. Among other things, tree species with the ability to cope with more extreme climate conditions have to be identified. However, while environmental factors may severely limit tree growth or even cause tree death, assessing a tree species' potential for surviving future aggravated environmental conditions is rather demanding. The aim of this study was to find a tree-ring-based method suitable for identifying very drought-tolerant species, particularly potential substitute species for Scots pine (Pinus sylvestris L.) in Valais. In this inner-Alpine valley, Scots pine used to be the dominating species for dry forests, but today it suffers from high drought-induced mortality. We investigate the growth response of two native tree species, Scots pine and European larch (Larix decidua Mill.), and two non-native species, black pine (Pinus nigra Arnold) and Douglas fir (Pseudotsuga menziesii Mirb. var. menziesii), to drought. This involved analysing how the radial increment of these species responded to increasing water shortage (abandonment of irrigation) and to increasingly frequent drought years. Black pine and Douglas fir are able to cope with drought better than Scots pine and larch, as they show relatively high radial growth even after irrigation has been stopped and a plastic growth response to drought years. European larch does not seem to be able to cope with these dry conditions as it lacks the ability to recover from drought years. The analysis of trees' short-term response to extreme climate events seems to be the most promising and suitable method for detecting how tolerant a tree species is towards drought. However, combining all the methods used in this study provides a complete picture of how water shortage could limit species.},
  language  = {en}
}
@article{CzarneckiSpiliopoulou2012,
  author    = {Czarnecki, Christian and Spiliopoulou, Myra},
  title     = {A holistic framework for the implementation of a next generation network},
  series = {International Journal of Business Information Systems},
  volume    = {9},
  journal   = {International Journal of Business Information Systems},
  number    = {4},
  publisher = {Inderscience Enterprises},
  address   = {Olney, Bucks},
  issn      = {1746-0972},
  doi       = {10.1504/IJBIS.2012.046291},
  pages     = {385 -- 401},
  year      = {2012},
  abstract  = {As the potential of a next generation network (NGN) is recognised, telecommunication companies consider switching to it. Although the implementation of an NGN seems to be merely a modification of the network infrastructure, it may trigger or require changes in the whole company, because it builds upon the separation between service and transport, a flexible bundling of services to products and the streamlining of the IT infrastructure. We propose a holistic framework, structured into the layers 'strategy', 'processes' and 'information systems' and incorporate into each layer all concepts necessary for the implementation of an NGN, as well as the alignment of these concepts. As a first proof-of-concept for our framework we have performed a case study on the introduction of NGN in a large telecommunication company; we show that our framework captures all topics that are affected by an NGN implementation.},
  language  = {en}
}
@article{ChwallekEngelenOswaldetal.2012,
  author    = {Chwallek, Constanze and Engelen, Andreas and Oswald, Monika and Brettel, Malte},
  title     = {Die Wir­kung des F{\"u}h­rungs­ver­hal­tens des Top-Ma­nage­ments auf die un­ter­neh­me­ri­sche Ori­en­tie­rung - ein 5-L{\"a}n­der-Ver­gleich},
  series = {Zfbf : Schmalenbachs Zeitschrift f{\"u}r betriebswirtschaftliche Forschung},
  journal   = {Zfbf : Schmalenbachs Zeitschrift f{\"u}r betriebswirtschaftliche Forschung},
  number    = {2},
  publisher = {Springer Fachmedien},
  address   = {Wiesbaden},
  issn      = {0341-2687},
  pages     = {138 -- 165},
  year      = {2012},
  language  = {de}
}
@article{ChludekTran2012,
  author    = {Chludek, Astrid and Tran, Duc Hung},
  title     = {Der Reformvorschlag des IAS 12 gem. ED/2009/2 - Ein Pl{\"a}doyer f{\"u}r die Einf{\"u}hrung der valuation allowance},
  series = {KoR Zeitschrift f{\"u}r kapitalmarktorientierte Rechnungslegung},
  journal   = {KoR Zeitschrift f{\"u}r kapitalmarktorientierte Rechnungslegung},
  number    = {1},
  publisher = {Fachmedien Otto Schmidt},
  address   = {D{\"u}sseldorf},
  issn      = {1617-8084},
  pages     = {4 -- 8},
  year      = {2012},
  language  = {de}
}
@article{Baehr2012,
  author    = {B{\"a}hr, Brigitte},
  title     = {[Gert Hoepner] im Interview zum Thema ; Verpackungspolitik - mehr als H{\"u}lle},
  series = {Packaging journal : Technologie, Logistik, Marketing, Produkte},
  journal   = {Packaging journal : Technologie, Logistik, Marketing, Produkte},
  number    = {5},
  publisher = {Ella Verlag},
  address   = {H{\"u}rth},
  issn      = {1610-0336},
  pages     = {78 -- 80},
  year      = {2012},
  language  = {de}
}
@article{BaeckerRaueSchusseretal.2012,
  author    = {B{\"a}cker, Matthias and Raue, Markus and Schusser, Sebastian and Jeitner, C. and Breuer, L. and Wagner, P. and Poghossian, Arshak and F{\"o}rster, Arnold and Mang, Thomas and Sch{\"o}ning, Michael Josef},
  title     = {Microfluidic chip with integrated microvalves based on temperature- and pH-responsive hydrogel thin films},
  series = {Physica Status Solidi (a)},
  volume    = {209},
  journal   = {Physica Status Solidi (a)},
  number    = {5},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1862-6319},
  doi       = {10.1002/pssa.201100763},
  pages     = {839 -- 845},
  year      = {2012},
  abstract  = {Two types of microvalves based on temperature-responsive poly(N-isopropylacrylamide) (PNIPAAm) and pH-responsive poly(sodium acrylate) (PSA) hydrogel films have been developed and tested. The PNIPAAm and PSA hydrogel films were prepared by means of in situ photopolymerization directly inside the fluidic channel of a microfluidic chip fabricated by combining Si and SU-8 technologies. The swelling/shrinking properties and height changes of the PNIPAAm and PSA films inside the fluidic channel were studied at temperatures of deionized water from 14 to 36 °C and different pH values (pH 3-12) of Titrisol buffer, respectively. Additionally, in separate experiments, the lower critical solution temperature (LCST) of the PNIPAAm hydrogel was investigated by means of a differential scanning calorimetry (DSC) and a surface plasmon resonance (SPR) method. Mass-flow measurements have shown the feasibility of the prepared hydrogel films to work as an on-chip integrated temperature- or pH-responsive microvalve capable to switch the flow channel on/off.},
  language  = {en}
}
@article{ButenwegHoltschoppen2012,
  author    = {Butenweg, Christoph and Holtschoppen, Britta},
  title     = {Neuer VCI-Leitfaden f{\"u}r die erdbebensichere Auslegung von Industrieanlagen},
  series = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik},
  volume    = {Band 87},
  journal   = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik},
  publisher = {VDI Fachmedien},
  address   = {D{\"u}sseldorf},
  issn      = {1436-4867 (E-Journal); 0005-6650 (Print)},
  pages     = {S18},
  year      = {2012},
  language  = {de}
}
@article{ButenwegGellert2012,
  author    = {Butenweg, Christoph and Gellert, Christoph},
  title     = {Integrale Geb{\"a}udeplanung am Beispiel eines Geschossbaus in Ziegelmauerwerk},
  series = {Mauerwerk : European journal of masonry},
  volume    = {Volume 16},
  journal   = {Mauerwerk : European journal of masonry},
  number    = {5},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1437-1022 (E-Journal); 1432-3427 (Print)},
  doi       = {10.1002/dama.201200550},
  pages     = {247 -- 254},
  year      = {2012},
  abstract  = {Moderne Mauerwerksbauten m{\"u}ssen nach heutigen Anforderungen architektonisch, statisch, energetisch sowie schall- und brandschutztechnisch optimal ausgelegt sein. Aufgrund der Komplexit{\"a}t und engen Verzahnung der einzelnen Anforderungen ist eine integrale Geb{\"a}udeplanung zur Erzielung einer qualitativ hochwertigen Bauwerksl{\"o}sung unbedingt notwendig. Diese erfordert von den Fachplanern vertieftes Spezialwissen in den verschiedenen Bereichen, um insbesondere die Schnittstellen und Bauwerksdetails korrekt zu planen und auszuf{\"u}hren. Der Beitrag stellt die integrale Geb{\"a}udeplanung am Beispiel eines Geschossbaus in Ziegelbauweise mit L{\"o}sungen f{\"u}r wesentliche Detailpunkte vor},
  language  = {de}
}
@article{ButenwegFehling2012,
  author    = {Butenweg, Christoph and Fehling, Ekkehard},
  title     = {Hintergrund f{\"u}r die vereinfachten Regeln bei Mauerwerksgeb{\"a}uden im Erdbebenfall},
  series = {Mauerwerk : European journal of masonry},
  volume    = {Volume 16},
  journal   = {Mauerwerk : European journal of masonry},
  number    = {Issue 3},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1437-1022 (E-Journal); 1432-3427 (Print)},
  doi       = {10.1002/dama.201200537},
  pages     = {127 -- 137},
  year      = {2012},
  abstract  = {Bei der Ausarbeitung des nationalen Anwendungsdokumentes zur DIN EN 1998-1 waren die in der ENV-Fassung enthaltenen vereinfachten Regeln im Lichte aktueller Forschungsergebnisse zu {\"u}berpr{\"u}fen und zu {\"u}berarbeiten. Die gleiche Aufgabe stellte sich auch f{\"u}r die Neufassung der DIN 4149. In beiden F{\"a}llen sind neben konstruktiven Regeln f{\"u}r die Art und Anordnung der zur Geb{\"a}udeaussteifung heranzuziehenden W{\"a}nde im Grundriss Tabellen enthalten, die unter bestimmten Bedingungen den Entfall eines rechnerischen Nachweises der Tragw{\"a}nde im Erdbebenfall erm{\"o}glichen. Dies ist f{\"u}r Schwachbebengebiete, wie sie in Deutschland und anderen L{\"a}ndern Mitteleuropas anzutreffen sind, sinnvoll, um unn{\"o}tigen Rechenaufwand sowie Probleme mit der F{\"u}hrbarkeit von Nachweisen so weit wie m{\"o}glich auszuschalten. Im vorliegenden Beitrag werden die Hintergr{\"u}nde der vereinfachten Regeln diskutiert und die Ergebnisse der Anwendung mit verschiedenen Rechenverfahren verglichen und bewertet.},
  language  = {de}
}
@article{BragardvanHoekDeDoncker2012,
  author    = {Bragard, Michael and van Hoek, H. and De Doncker, R. W.},
  title     = {A major design step in IETO concept realization that allows overcurrent protection and pushes limits of switching performance},
  series = {IEEE transactions on power electronics},
  volume    = {27},
  journal   = {IEEE transactions on power electronics},
  number    = {9},
  publisher = {IEEE},
  address   = {New York},
  issn      = {0885-8993},
  doi       = {10.1109/TPEL.2012.2189136},
  pages     = {4163 -- 4171},
  year      = {2012},
  abstract  = {This paper presents the latest prototype of the integrated emitter turn-off thyristor concept, which potentially ranks among thyristor high-power devices like the gate turn-off thyristor and the integrated gate-commutated thyristor (IGCT). Due to modifications of the external driver stage and mechanical press-pack design optimization, this prototype allows for full device characterization. The turn-off capability was increased to 1600 A with an active silicon area of 823mm2 . This leads to a transient peak power of 672.1kW/cm² . Within this paper, measurements and concept assessment are presented and a comparison to state-of-the-art IGCT devices is provided.},
  language  = {en}
}
@article{BragardBragard2012,
  author    = {Bragard, G. and Bragard, Michael},
  title     = {Ein kosteng{\"u}nstiges, universelles Modellbauinterface},
  series = {Der mathematische und naturwissenschaftliche Unterricht : MNU ; Organ des Deutschen Vereins zur F{\"o}rderung des Mathematischen und Naturwissenschaftlichen Unterrichts e.V.},
  volume    = {65},
  journal   = {Der mathematische und naturwissenschaftliche Unterricht : MNU ; Organ des Deutschen Vereins zur F{\"o}rderung des Mathematischen und Naturwissenschaftlichen Unterrichts e.V.},
  number    = {5},
  publisher = {Seeberger},
  address   = {Neuss},
  issn      = {0025-5866},
  pages     = {290 -- 293},
  year      = {2012},
  abstract  = {Wir stellen einen USB-Baustein vor, der eine kosteng{\"u}nstige und universelle M{\"o}glichkeit schafft , im Unterricht den Themenkreis Messen-Steuern-Regeln zu behandeln. Die Funktionalit{\"a}t orientiert sich am CVK-Interface der Firma Fischertechnik. Im Gegensatz zu kommerziellen L{\"o}sungen erlaubt unser Aufbau auch den preiswerten Einsatz in Gruppen- oder Einzelarbeit. Abschließend berichten wir {\"u}ber ein Beispiel aus dem Unterrichtseinsatz.},
  language  = {de}
}
@article{BorgmeierBongaertsMeinhardt2012,
  author    = {Borgmeier, Claudia and Bongaerts, Johannes and Meinhardt, Friedhelm},
  title     = {Genetic analysis of the Bacillus licheniformis degSU operon and the impact of regulatory mutations on protease production},
  series = {Journal of biotechnology},
  volume    = {159},
  journal   = {Journal of biotechnology},
  number    = {1-2},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1873-4863 (E-Journal); 0168-1656 (Print)},
  doi       = {10.1016/j.jbiotec.2012.02.011},
  pages     = {12 -- 20},
  year      = {2012},
  abstract  = {Disruption experiments targeted at the Bacillus licheniformis degSU operon and GFP-reporter analysis provided evidence for promoter activity immediately upstream of degU. pMutin mediated concomitant introduction of the degU32 allele - known to cause hypersecretion in Bacillus subtilis - resulted in a marked increase in protease activity. Application of 5-fluorouracil based counterselection through establishment of a phosphoribosyltransferase deficient Δupp strain eventually facilitated the marker-free introduction of degU32 leading to further protease enhancement achieving levels as for hypersecreting wild strains in which degU was overexpressed. Surprisingly, deletion of rapG - known to interfere with DegU DNA-binding in B. subtilis - did not enhance protease production neither in the wild type nor in the degU32 strain. The combination of degU32 and Δupp counterselection in the type strain is not only equally effective as in hypersecreting wild strains with respect to protease production but furthermore facilitates genetic strain improvement aiming at biological containment and effectiveness of biotechnological processes.},
  language  = {en}
}
@article{BohrnStuetzFuchsetal.2012,
  author    = {Bohrn, U. and St{\"u}tz, E. and Fuchs, K. and Fleischer, M. and Sch{\"o}ning, Michael Josef and Wagner, P.},
  title     = {Monitoring of irritant gas using a whole-cell-based sensor system},
  series = {Sensors and Actuators B: Chemical},
  volume    = {175},
  journal   = {Sensors and Actuators B: Chemical},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0925-4005},
  doi       = {10.1016/j.snb.2012.05.088},
  pages     = {208 -- 217},
  year      = {2012},
  abstract  = {Cell-based sensors for the detection of gases have long been underrepresented, due to the cellular requirement of being cultured in a liquid environment. In this work we established a cell-based gas biosensor for the detection of toxic substances in air, by adapting a commercial sensor chip (Bionas®), previously used for the measurement of pollutants in liquids. Cells of the respiratory tract (A549, RPMI 2650, V79), which survive at a gas phase in a natural context, are used as biological receptors. The physiological cell parameters acidification, respiration and morphology are continuously monitored in parallel. Ammonia was used as a highly water-soluble model gas to test the feasibility of the sensor system. Infrared measurements confirmed the sufficiency of the medium draining method. This sensor system provides a basis for many sensor applications such as environmental monitoring, building technology and public security.},
  language  = {en}
}
@article{BoettcherHaselhuhnJakseetal.2012,
  author    = {Boettcher, Martin and Haselhuhn, Angelika and Jakse, Gerhard and Brehmer, Bernhard and Kirschner-Hermanns, Ruth},
  title     = {Overactive bladder syndrome: an underestimated long-term problem after treatment of patients with localized prostate cancer?},
  series = {BJU international},
  volume    = {109},
  journal   = {BJU international},
  number    = {12},
  publisher = {Wiley-Blackwell},
  address   = {Oxford},
  issn      = {1365-2176 (E-Journal); 1464-410X (E-Journal); 0007-1331 (Print); 1464-4096 (Print)},
  doi       = {10.1111/j.1464-410X.2011.10623.x},
  pages     = {1824 -- 1830},
  year      = {2012},
  abstract  = {In this study we observed courses of micturition symptoms and differentiated degrees of symptoms for each point in time while also considering the impact of bothersomeness. Our data show that not only significantly more patients who have undergone BT suffer from OAB than those who have undergone RP, but also that those affected show significantly higher values for severity of OAB symptoms throughout the whole observation period of 36 months. Our data analysis further shows that variability of OAB symptoms as well as fluctuation of severity of OAB symptoms vary to a significantly higher degree after BT than after RP. Looking only at mean figures at a given point in time clearly underestimates the underlying problem. This fact is not reflected in the literature.},
  language  = {en}
}
@article{BleckenHolthausSellheier2012,
  author    = {Blecken, Udo and Holthaus-Sellheier, Ursula},
  title     = {Quantitative Prognoseverfahren f{\"u}r Mietpreise von Bueroimmobilien am Beispiel D{\"u}sseldorf},
  series = {GuG : Grundst{\"u}cksmarkt und Grundst{\"u}ckswert},
  volume    = {23},
  journal   = {GuG : Grundst{\"u}cksmarkt und Grundst{\"u}ckswert},
  number    = {1},
  publisher = {Werner},
  address   = {K{\"o}ln},
  issn      = {0938-0175},
  pages     = {12 -- 21},
  year      = {2012},
  language  = {de}
}
@article{BeckerDelfmannEggertetal.2012,
  author    = {Becker, J{\"o}rg and Delfmann, Patrick and Eggert, Mathias and Schwittay, Sebastian},
  title     = {Generalizability and Applicability of Model-Based Business Process Compliance-Checking Approaches — A State-of-the-Art Analysis and Research Roadmap},
  series = {Business Research : BuR},
  volume    = {5},
  journal   = {Business Research : BuR},
  number    = {2},
  publisher = {Springer},
  address   = {Heidelberg},
  issn      = {1866-8658},
  doi       = {10.1007/BF03342739},
  pages     = {221 -- 247},
  year      = {2012},
  abstract  = {With a steady increase of regulatory requirements for business processes, automation support of compliance management is a field garnering increasing attention in Information Systems research. Several approaches have been developed to support compliance checking of process models. One major challenge for such approaches is their ability to handle different modeling techniques and compliance rules in order to enable widespread adoption and application. Applying a structured literature search strategy, we reflect and discuss compliance-checking approaches in order to provide an insight into their generalizability and evaluation. The results imply that current approaches mainly focus on special modeling techniques and/or a restricted set of types of compliance rules. Most approaches abstain from real-world evaluation which raises the question of their practical applicability. Referring to the search results, we propose a roadmap for further research in model-based business process compliance checking.},
  language  = {en}
}
@article{BassamHeschelerTemizArtmannetal.2012,
  author    = {Bassam, Rasha and Hescheler, J{\"u}rgen and Temiz Artmann, Ayseg{\"u}l and Artmann, Gerhard and Digel, Ilya},
  title     = {Effects of spermine NONOate and ATP on the thermal stability of hemoglobin},
  series = {BMC Biophysics},
  volume    = {5},
  journal   = {BMC Biophysics},
  publisher = {BioMed Central},
  address   = {London},
  issn      = {2046-1682},
  doi       = {10.1186/2046-1682-5-16},
  pages     = {Art. 16},
  year      = {2012},
  abstract  = {Background Minor changes in protein structure induced by small organic and inorganic molecules can result in significant metabolic effects. The effects can be even more profound if the molecular players are chemically active and present in the cell in considerable amounts. The aim of our study was to investigate effects of a nitric oxide donor (spermine NONOate), ATP and sodium/potassium environment on the dynamics of thermal unfolding of human hemoglobin (Hb). The effect of these molecules was examined by means of circular dichroism spectrometry (CD) in the temperature range between 25°C and 70°C. The alpha-helical content of buffered hemoglobin samples (0.1 mg/ml) was estimated via ellipticity change measurements at a heating rate of 1°C/min. Results Major results were: 1) spermine NONOate persistently decreased the hemoglobin unfolding temperature T u irrespectively of the Na + /K + environment, 2) ATP instead increased the unfolding temperature by 3°C in both sodium-based and potassium-based buffers and 3) mutual effects of ATP and NO were strongly influenced by particular buffer ionic compositions. Moreover, the presence of potassium facilitated a partial unfolding of alpha-helical structures even at room temperature. Conclusion The obtained data might shed more light on molecular mechanisms and biophysics involved in the regulation of protein activity by small solutes in the cell.},
  language  = {en}
}
@article{BackesAdamGottschaldetal.2012,
  author    = {Backes, Klaus and Adam, Mario and Gottschald, Beng Jonas and Faber, Christian and Henneb{\"o}hl, Friedrich-Gregor and Lanz, Marco and Anthrakidis, Anette},
  title     = {KWKK-Anlagen im Feldtest. Optimaler Betrieb durch Verbesserungen bei Regelung und Hydraulik},
  series = {Die K{\"a}lte- und Klimatechnik},
  journal   = {Die K{\"a}lte- und Klimatechnik},
  number    = {2},
  publisher = {Gentner},
  address   = {Stuttgart},
  issn      = {0343-2246},
  year      = {2012},
  language  = {de}
}
@article{AtlasBrealeyDharetal.2012,
  author    = {Atlas, Glen and Brealey, David and Dhar, Sunil and Dikta, Gerhard and Singer, Meryvn},
  title     = {Additional hemodynamic measurements with an esophageal Doppler monitor: a preliminary report of compliance, force, kinetic energy, and afterload in the clinical setting},
  series = {Journal of clinical monitoring and computing},
  journal   = {Journal of clinical monitoring and computing},
  number    = {26},
  publisher = {Springer Nature},
  address   = {London},
  isbn      = {1573-2614},
  doi       = {10.1007/s10877-012-9386-5},
  pages     = {473 -- 482},
  year      = {2012},
  abstract  = {The esophageal Doppler monitor (EDM) is a minimally-invasive hemodynamic device which evaluates both cardiac output (CO), and fluid status, by estimating stroke volume (SV) and calculating heart rate (HR). The measurement of these parameters is based upon a continuous and accurate approximation of distal thoracic aortic blood flow. Furthermore, the peak velocity (PV) and mean acceleration (MA), of aortic blood flow at this anatomic location, are also determined by the EDM. The purpose of this preliminary report is to examine additional clinical hemodynamic calculations of: compliance (C), kinetic energy (KE), force (F), and afterload (TSVRi). These data were derived using both velocity-based measurements, provided by the EDM, as well as other contemporaneous physiologic parameters. Data were obtained from anesthetized patients undergoing surgery or who were in a critical care unit. A graphical inspection of these measurements is presented and discussed with respect to each patient's clinical situation. When normalized to each of their initial values, F and KE both consistently demonstrated more discriminative power than either PV or MA. The EDM offers additional applications for hemodynamic monitoring. Further research regarding the accuracy, utility, and limitations of these parameters is therefore indicated.},
  language  = {en}
}
@article{Alexopoulos2012,
  author    = {Alexopoulos, Spiros},
  title     = {Biogas systems: basics, biogas multifunction, principle of fermentation and hybrid application with a solar tower for the treatment of waste animal manure},
  series = {Journal of Engineering Science and Technology Review},
  volume    = {5},
  journal   = {Journal of Engineering Science and Technology Review},
  number    = {4},
  issn      = {1791-2377},
  pages     = {48 -- 55},
  year      = {2012},
  abstract  = {Two of the main environmental problems of today's society are the continuously increasing production of organic wastes as well as the increase of carbon dioxide in the atmosphere and the related green house effect. A way to solve these problems is the production of biogas. Biogas is a combustible gas consisting of methane, carbon dioxide and small amounts of other gases and trace elements. Production of biogas through anaerobic digestion of animal manure and slurries as well as of a wide range of digestible organic wastes and agricultural residues, converts these substrates into electricity and heat and offers a natural fertiliser for agriculture. The microbiological process of decomposition of organic matter, in the absence of oxygen takes place in reactors, called digesters. Biogas can be used as a fuel in a gas turbine or burner and can be used in a hybrid solar tower system offering a solution for waste treatment of agricultural and animal residues. A solar tower system consists of a heliostat field, which concentrates direct solar irradiation on an open volumetric central receiver. The receiver heats up ambient air to temperatures of around 700°C. The hot air's heat energy is transferred to a steam Rankine cycle in a heat recovery steam generator (HRSG). The steam drives a steam turbine, which in turn drives a generator for producing electricity. In order to increase the operational hours of a solar tower power plant, a heat storage system and/ or hybridization may be considered. The advantage of solar-fossil hybrid power plants, compared to solar-only systems, lies in low additional investment costs due to an adaptable solar share and reduced technical and economical risks. On sunny days the hybrid system operates in a solar-only mode with the central receiver and on cloudy days and at night with the gas turbine only. As an alternative to methane gas, environmentally neutral biogas can be used for operating the gas turbine. Hence, the hybrid system is operated to 100\% from renewable energy sources},
  language  = {en}
}
@article{AggarwalDhimanKumaretal.2012,
  author    = {Aggarwal, P. and Dhiman, S. and Kumar, G. and Scherer, Ulrich W. and Singla, M. L. and Srivastava, A.},
  title     = {Optical study of poly(ethyleneterephthalate) modified by different ionizing radiation dose},
  series = {Indian Journal of Pure and Applied Physics},
  volume    = {50},
  journal   = {Indian Journal of Pure and Applied Physics},
  number    = {2},
  issn      = {0019-5596},
  pages     = {129 -- 132},
  year      = {2012},
  abstract  = {Thin films of poly(ethyleneterephthalate) [PET]were exposed to radiation dose ranging from 10 to 30 kGy by using gamma rays in the range 12.8-177.8 MGy using swift light ions of hydrogen. There was no effect of the radiation dose on the optical behaviour of PET as a result of exposure to radiation dose up to 30 kGy brought about by gamma rays but a significant decrease in the optical band gap values was observed when PET was exposed to swift light ions of hydrogen. The data obtained are discussed in terms of optical studies carried out on PET using swift heavy ions.},
  language  = {en}
}
@article{AbouzarPoghossianCherstvyetal.2012,
  author    = {Abouzar, Maryam H. and Poghossian, Arshak and Cherstvy, Andrey G. and Pedraza, Angela M. and Ingebrandt, Sven and Sch{\"o}ning, Michael Josef},
  title     = {Label-free electrical detection of DNA by means of field-effect nanoplate capacitors: Experiments and modeling},
  series = {Physica Status Solidi (a)},
  volume    = {209},
  journal   = {Physica Status Solidi (a)},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1862-6319},
  doi       = {10.1002/pssa.201100710},
  pages     = {925 -- 934},
  year      = {2012},
  abstract  = {Label-free electrical detection of consecutive deoxyribonucleic acid (DNA) hybridization/denaturation by means of an array of individually addressable field-effect-based nanoplate silicon-on-insulator (SOI) capacitors modified with gold nanoparticles (Au-NP) is investigated. The proposed device detects charge changes on Au-NP/DNA hybrids induced by the hybridization or denaturation event. DNA hybridization was performed in a high ionic-strength solution to provide a high hybridization efficiency. On the other hand, to reduce the screening of the DNA charge by counter ions and to achieve a high sensitivity, the sensor signal induced by the hybridization and denaturation events was measured in a low ionic-strength solution. High sensor signals of about 120, 90, and 80 mV were registered after the DNA hybridization, denaturation, and re-hybridization events, respectively. Fluorescence microscopy has been applied as reference method to verify the DNA immobilization, hybridization, and denaturation processes. An electrostatic charge-plane model for potential changes at the gate surface of a nanoplate field-effect sensor induced by the DNA hybridization has been developed taking into account both the Debye length and the distance of the DNA charge from the gate surface.},
  language  = {en}
}