@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{HoetterFateriGebhardt2012,
  author    = {H{\"o}tter, Jan-Steffen and Fateri, Miranda and Gebhardt, Andreas},
  title     = {Selective laser melting of metals: desktop machines open up new chances even for small companies},
  series = {Advanced materials research},
  volume    = {622-623},
  journal   = {Advanced materials research},
  publisher = {Trans Tech Publ.},
  address   = {Baech},
  issn      = {1662-8985 (E-Journal); 1022-6680 (Print)},
  doi       = {10.4028/www.scientific.net/AMR.622-623.461},
  pages     = {461 -- 465},
  year      = {2012},
  abstract  = {Additive manufacturing (AM) of metal parts by using Selective Laser Melting (SLM) has become a powerful tool mostly in the area of automotive, aerospace engineering and others. Especially in the field of dentistry, jewelry and related branches that require individualized or even one-of-a-kind products, the direct digital manufacturing process opens up new ways of design and manufacturing. In these fields, mostly small and medium sized businesses (SME) are operating which do not have sufficient human and economic resources to invest in this technology. But to stay competitive, the application of AM can be regarded as a necessity. In this situation a new desktop machine (Realizer SLM 50) was introduced that cost about 1/3 of a shop floor SLM machine and promises small quality parts. To find out whether the machine really is an alternative for SMEs the University of Applied Science, Aachen, Germany, designed, build and optimized typical parts from the dentistry and the jewelry branches using CoCr and silver material, the latter being new with this application. The paper describes the SLM procedure and how to find and optimize the most important parameters. The test is accompanied by digital simulation in order to verify the build parameters and to plan future builds. The procedure is shown as well as the resulting parts made from CoCr and silver material.},
  language  = {en}
}
@article{Knueppel2012,
  author    = {Kn{\"u}ppel, Mark},
  title     = {Außerbilanzielle Korrekturen},
  series = {Handbuch der Bilanzierung online},
  journal   = {Handbuch der Bilanzierung online},
  editor    = {Federmann, Rudolf and Kußmaul, Heinz and M{\"u}ller, Stefan},
  publisher = {Haufe},
  address   = {Freiburg},
  issn      = {0172-0392},
  pages     = {Artikel HI 1380074},
  year      = {2012},
  language  = {de}
}
@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{OertelBung2012,
  author    = {Oertel, Mario and Bung, Daniel Bernhard},
  title     = {Initial stage of two-dimensional dam-break waves: laboratory versus VOF},
  series = {Journal of hydraulic research},
  volume    = {50},
  journal   = {Journal of hydraulic research},
  number    = {1},
  publisher = {Taylor \& Francis},
  address   = {London},
  issn      = {1814-2079 (E-Journal); 0022-1686 (Print)},
  doi       = {10.1080/00221686.2011.639981},
  pages     = {89 -- 97},
  year      = {2012},
  abstract  = {Since several decades, dam-break waves have been of main research interest. Mathematical approaches have been developed by analytical, physical and numerical models within the past 120 years. During the past 10 years, the number of research investigations has increased due to improved measurement techniques as well as significantly increased computer memories and performances. In this context, the present research deals with the initial stage of two-dimensional dam-break waves by comparing physical and numerical model results as well as analytical approaches. High-speed images and resulting particle image velocimetry calculations are thereby compared with the numerical volume-of-fluid (VOF) method, included in the commercial code FLOW-3D. Wave profiles and drag forces on placed obstacles are analysed in detail. Generally, a good agreement between the laboratory and VOF results is found.},
  language  = {en}
}
@article{RibitschHeumannKarletal.2012,
  author    = {Ribitsch, D. and Heumann, S. and Karl, W. and Gerlach, J. and Leber, R. and Birner-Gruenberger, R. and Gruber, K. and Eiteljoerg, I. and Remler, P. and Siegert, Petra and Lange, J. and Maurer, Karl-Heinz and Berg, G. and Guebitz, G. M. and Schwab, H.},
  title     = {Extracellular serine proteases from Stenotrophomonas maltophilia: Screening, isolation and heterologous expression in E. coli},
  series = {Journal of biotechnology},
  volume    = {157},
  journal   = {Journal of biotechnology},
  number    = {1},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1873-4863 (E-Journal); 0168-1656 (Print)},
  doi       = {10.1016/j.jbiotec.2011.09.025},
  pages     = {140 -- 147},
  year      = {2012},
  abstract  = {A large strain collection comprising antagonistic bacteria was screened for novel detergent proteases. Several strains displayed protease activity on agar plates containing skim milk but were inactive in liquid media. Encapsulation of cells in alginate beads induced protease production. Stenotrophomonas maltophilia emerged as best performer under washing conditions. For identification of wash-active proteases, four extracellular serine proteases called StmPr1, StmPr2, StmPr3 and StmPr4 were cloned. StmPr2 and StmPr4 were sufficiently overexpressed in E. coli. Expression of StmPr1 and StmPr3 resulted in unprocessed, insoluble protein. Truncation of most of the C-terminal domain which has been identified by enzyme modeling succeeded in expression of soluble, active StmPr1 but failed in case of StmPr3. From laundry application tests StmPr2 turned out to be a highly wash-active protease at 45 °C. Specific activity of StmPr2 determined with suc-l-Ala-l-Ala-l-Pro-l-Phe-p-nitroanilide as the substrate was 17 ± 2 U/mg. In addition we determined the kinetic parameters and cleavage preferences of protease StmPr2.},
  language  = {en}
}
@article{SchmitzWeber2012,
  author    = {Schmitz, Philipp and Weber, Martin},
  title     = {Buying and selling behavior of individual investors in option-like securities},
  series = {Die Betriebswirtschaft : DBW},
  volume    = {72},
  journal   = {Die Betriebswirtschaft : DBW},
  number    = {5},
  publisher = {Sch{\"a}ffer-Poeschel},
  address   = {Stuttgart},
  issn      = {0342-7064},
  doi       = {10.2139/ssrn.2055088},
  pages     = {409 -- 426},
  year      = {2012},
  abstract  = {We analyze the trading behavior of individual investors in option-like securities, namely bankissued warrants, and thus expand the growing literature of investors behavior to a new kind of securities. A unique data set from a large German discount broker gives us the opportunity to analyze the trading behavior of 1,454 investors, making 89,958 transactions in 6,724 warrants on 397 underlyings. In different logit regression, we make use of the facts that investors can speculate on rising and falling prices of the underlying with call and put warrants and that we also have information about the stock portfolios of the investors. We report several facts about the trading behavior of individual investors in warrants that are consistent with the literature on the behavior of individual investors in the stock market. The warrant investors buy calls and sell puts if the price of the underlying has decreased over the past trading days and they sell calls and buy puts if the price of the underlying has increased. That means, the investors follow negative feedback trading strategies in all four trading categories observed. In addition, we find strong evidence for the disposition effect for call as well as put warrants, which is reversed in December. The trading behavior is also influenced if the underlying reaches some exceptionally prices, e.g. highs, lows or the strike price. We show that hedging, as one natural candidate to buy puts, does not play an important role in the market for bank-issued warrants.},
  language  = {en}
}
@article{SchoeningBiselliSelmeretal.2012,
  author    = {Sch{\"o}ning, Michael Josef and Biselli, Manfred and Selmer, Thorsten and {\"O}hlschl{\"a}ger, Peter and Baumann, Marcus and F{\"o}rster, Arnold and Poghossian, Arshak},
  title     = {Forschung „zwischen" den Disziplinen: das Institut f{\"u}r Nano- und Biotechnologien},
  series = {Analytik news : das Online-Labormagazin f{\"u}r Labor und Analytik},
  volume    = {Publ. online},
  journal   = {Analytik news : das Online-Labormagazin f{\"u}r Labor und Analytik},
  publisher = {Dr. Beyer Internet-Beratung},
  address   = {Ober-Ramstadt},
  pages     = {11 Seiten},
  year      = {2012},
  abstract  = {"Biologie trifft Mikroelektronik", das Motto des Instituts f{\"u}r Nano- und Biotechnologien (INB) an der FH Aachen, unterstreicht die zunehmende Bedeutung interdisziplin{\"a}r gepr{\"a}gter Forschungsaktivit{\"a}ten. Der thematische Zusammenschluss grundst{\"a}ndiger Disziplinen, wie die Physik, Elektrotechnik, Chemie, Biologie sowie die Materialwissenschaften, l{\"a}sst neue Forschungsgebiete entstehen, ein herausragendes Beispiel hierf{\"u}r ist die Nanotechnologie: Hier werden neue Werkstoffe und Materialien entwickelt, einzelne Nanopartikel oder Molek{\"u}le und deren Wechselwirkung untersucht oder Schichtstrukturen im Nanometerbereich aufgebaut, die neue und vorher nicht bekannte Eigenschaften hervorbringen. Vor diesem Hintergrund b{\"u}ndelt das im Jahre 2006 gegr{\"u}ndete INB die an der FH Aachen vorhandenen Kompetenzen von derzeit insgesamt sieben Laboratorien auf den Gebieten der Halbleitertechnik und Nanoelektronik, Nanostrukturen und DNA-Sensorik, der Chemo- und Biosensorik, der Enzymtechnologie, der Mikrobiologie und Pflanzenbiotechnologie, der Zellkulturtechnik, sowie der Roten Biotechnologie synergetisch. In der Nano- und Biotechnologie steckt außergew{\"o}hnliches Potenzial! Nicht zuletzt deshalb stellen sich die Forscher der Herausforderung, in diesem Bereich gemeinsam zu forschen und Schnittstellen zu nutzen, um so bei der Gestaltung neuartiger Ideen und Produkte mitzuwirken, die zuk{\"u}nftig unser allt{\"a}gliches Leben ver{\"a}ndern werden. Im Folgenden werden die verschiedenen Forschungsbereiche kurz zusammenfassend vorgestellt und vorhandene Interaktionen anhand von exemplarisch ausgew{\"a}hlten, aktuellen Forschungsprojekten skizziert.},
  language  = {de}
}
@article{KirchhofKraft2012,
  author    = {Kirchhof, Michael and Kraft, Bodo},
  title     = {Hybrides Vorgehensmodell : Agile und klassische Methoden im Projekt passend kombinieren},
  series = {ProjektMagazin},
  journal   = {ProjektMagazin},
  number    = {11},
  publisher = {Berleb Media},
  address   = {Taufkirchen},
  pages     = {11 S.},
  year      = {2012},
  abstract  = {Agil ist im Trend und immer mehr Unternehmen, die ihre Projekte bisher nach klassischen Prinzipien durchf{\"u}hrten, denken {\"u}ber den Einsatz agiler Methoden nach. Doch selbst wenn die Organisation bereits beide Philosophien unterst{\"u}tzt, gilt f{\"u}r ein Projekt meist die klare Vorgabe: agil oder klassisch. Es gibt aber noch einen anderen Ansatz, mit diesen "unterschiedlichen Welten" umzugehen: Und zwar die beiden Philosophien innerhalb eines Projekts zu kombinieren. Wie dies in der Praxis aussehen und gelingen kann, zeigen Dr. Michael Kirchhof und Prof. Dr. Bodo Kraft in diesem Beitrag.},
  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{LeidingerNoistenWollert2012,
  author    = {Leidinger, Rafael and Noisten, Thomas and Wollert, J{\"o}rg},
  title     = {Realtime automation networks in moVing industrial environments},
  series = {Journal of systemics, cybernetics and informatics},
  volume    = {Vol. 10},
  journal   = {Journal of systemics, cybernetics and informatics},
  number    = {Iss. 2},
  publisher = {IIIC},
  address   = {Orlando},
  issn      = {1690-4532},
  pages     = {52 -- 56},
  year      = {2012},
  abstract  = {The radio-based wireless data communication has made the realization of new technical solutions possible in many fields of the automation technology (AT). For about ten years, a constant disproportionate growth of wireless technologies can be observed in the automation technology. However, it shows that especially for the AT, conventional technologies of office automation are unsuitable and/or not manageable. The employment of mobile services in the industrial automation technology has the potential of significant cost and time savings. This leads to an increased productivity in various fields of the AT, for example in the factory and process automation or in production logistics. In this paper technologies and solutions for an automation-suited supply of mobile wireless services will be introduced under the criteria of real time suitability, IT-security and service orientation. Emphasis will be put on the investigation and development of wireless convergence layers for different radio technologies, on the central provision of support services for an easy-to-use, central, backup enabled management of combined wired / wireless networks and on the study on integrability in a Profinet real-time Ethernet network.},
  language  = {en}
}
@article{MottaghyDijkshoorn2012,
  author    = {Mottaghy, Darius and Dijkshoorn, Lydia},
  title     = {Implementing an effective finite difference formulation for borehole heat exchangers into a heat and mass transport code},
  series = {Renewable Energy},
  volume    = {45},
  journal   = {Renewable Energy},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0960-1481},
  doi       = {10.1016/j.renene.2012.02.013},
  pages     = {59 -- 71},
  year      = {2012},
  abstract  = {We present an effective finite difference formulation for implementing and modeling multiple borehole heat exchangers (BHE) in the general 3-D coupled heat and flow transport code SHEMAT. The BHE with arbitrary length can be either coaxial or double U-shaped. It is particularly suitable for modeling deep BHEs which contain varying pipe diameters and materials. Usually, in numerical simulations, a fine discretization of the BHE assemblage is required, due to the large geometric aspect ratios involved. This yields large models and long simulation times. The approach avoids this problem by considering heat transport between fluid and the soil through pipes and grout via thermal resistances. Therefore, the simulation time can be significantly reduced. The coupling with SHEMAT is realized by introducing an effective heat generation. Due to this connection, it is possible to consider heterogeneous geological models, as well as the influence of groundwater flow. This is particularly interesting when studying the long term behavior of a single BHE or a BHE field. Heating and cooling loads can enter the model with an arbitrary interval, e.g. from hourly to monthly values. When dealing with large BHE fields, computing times can be further significantly reduced by focusing on the temperature field around the BHEs, without explicitly modeling inlet and outlet temperatures. This allows to determine the possible migration of cold and warm plumes due to groundwater flow, which is of particular importance in urban areas with a high BHE installation density. The model is validated against the existing BHE modeling codes EWS and EED. A comparison with monitoring data from a deep BHE in Switzerland shows a good agreement. Synthetic examples demonstrate the field of application of this model.},
  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{RostLind2012,
  author    = {Rost, Kathrin Dorothea and Lind, Thorsten Patric},
  title     = {Die Aufrechnung des Insolvenzverwalters gegen eine Insolvenzforderung nach ihrer Feststellung},
  series = {Zeitschrift f{\"u}r das gesamte Insolvenzrecht : ZInsO},
  journal   = {Zeitschrift f{\"u}r das gesamte Insolvenzrecht : ZInsO},
  publisher = {Heymanns},
  address   = {K{\"o}ln},
  issn      = {1615-8032},
  pages     = {2179 -- 2187},
  year      = {2012},
  language  = {de}
}
@article{Lind2012,
  author    = {Lind, Thorsten Patric},
  title     = {Zur Rechtsscheinhaftung bei Handeln einer Unternehmergesellschaft unter dem Rechtsformzusatz „GmbH" : Urteil vom 12.06.2012 - II ZR 256/11 : Anmerkung},
  series = {Fachdienst Zivilrecht - LMK - Kommentierte BGH-Rechtsprechung, Lindenmaier-M{\"o}hring},
  journal   = {Fachdienst Zivilrecht - LMK - Kommentierte BGH-Rechtsprechung, Lindenmaier-M{\"o}hring},
  number    = {Ausg. 11},
  publisher = {Beck},
  address   = {M{\"u}nchen},
  issn      = {1611-1095},
  pages     = {339268},
  year      = {2012},
  language  = {de}
}
@article{Lind2012,
  author    = {Lind, Thorsten Patric},
  title     = {Rechtsprobleme bei der Liquidation der GmbH und der Gewinnaussch{\"u}ttung trotz bestehenden Anspruchs gegen den Gesellschafter : BGH, Urteil vom 23.04.2012 - II ZR 252/10 : Anmerkung},
  series = {Fachdienst Zivilrecht - LMK - Kommentierte BGH-Rechtsprechung, Lindenmaier-M{\"o}hring},
  journal   = {Fachdienst Zivilrecht - LMK - Kommentierte BGH-Rechtsprechung, Lindenmaier-M{\"o}hring},
  number    = {Ausg. 10},
  publisher = {Beck},
  address   = {M{\"u}nchen},
  issn      = {1611-1095},
  pages     = {338415},
  year      = {2012},
  language  = {de}
}
@article{Lind2012,
  author    = {Lind, Thorsten Patric},
  title     = {Vollzug der Schenkung einer Unterbeteiligung : BGH, Urteil vom 29.11.2011 - II ZR 306/09 : Anmerkung},
  series = {Fachdienst Zivilrecht - LMK - Kommentierte BGH-Rechtsprechung, Lindenmaier-M{\"o}hring},
  journal   = {Fachdienst Zivilrecht - LMK - Kommentierte BGH-Rechtsprechung, Lindenmaier-M{\"o}hring},
  number    = {Ausg. 4},
  publisher = {Beck},
  address   = {M{\"u}nchen},
  issn      = {1611-1095},
  pages     = {330150},
  year      = {2012},
  language  = {de}
}
@article{Lind2012,
  author    = {Lind, Thorsten Patric},
  title     = {Die Kostentragungspflicht bei der Aussonderung von Gegenst{\"a}nden, insbesondere bei Aufwendungen f{\"u}r den Ausbau einer Sache},
  series = {Insb{\"u}ro : Zeitschrift f{\"u}r Insolvenzsachbearbeitung und Entschuldungsverfahren},
  journal   = {Insb{\"u}ro : Zeitschrift f{\"u}r Insolvenzsachbearbeitung und Entschuldungsverfahren},
  number    = {H. 3},
  publisher = {Wolters Kluwer},
  address   = {K{\"o}ln},
  issn      = {1863-0731},
  pages     = {88 -- 89},
  year      = {2012},
  language  = {de}
}
@article{LaumannMainz2012,
  author    = {Laumann, J{\"o}rg and Mainz, Stefan},
  title     = {Direkte Ermittlung der erforderlichen Einspanntiefe von I‑f{\"o}rmigen Stahlquerschnitten in Betonkonstruktionen},
  volume    = {81},
  number    = {11},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1437-1049},
  doi       = {10.1002/stab.201201620},
  pages     = {850 -- 860},
  year      = {2012},
  abstract  = {F{\"u}r die Ermittlung der erforderlichen Einspanntiefe von eingespannten Stahlquerschnitten in Betonkonstruktionen existieren verschiedene Bemessungsmodelle. Diese basieren vorwiegend auf Grundlage nationaler Normen wie z. B. DIN 18800 [1] und DIN 1045 [2], die durch die europ{\"a}ische Normung ersetzt wurden. Aus diesem Grund wird in diesem Aufsatz ein Berechnungsmodell f{\"u}r die erforderliche Einspanntiefe von eingespannten Stahlquerschnitten in Betonkonstruktionen auf Grundlage des Eurocodes vorgestellt. Das Grundger{\"u}st f{\"u}r dieses Berechnungsmodell bildet das Verfahren nach Kindmann und Laumann, welches in [3] behandelt wurde. Gleichzeitig werden neue Formeln zur direkten Ermittlung der Mindesteinspanntiefe vorgestellt. Behandelt werden gewalzte I-Profile f{\"u}r einachsige Biegung um die starke Achse (y-y) mit Drucknormalkraft.},
  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}
}