Refine
Document Type
- Journal article (1244)
- Conference proceeding (1039)
- Book chapter (381)
- Book (223)
- Doctoral Thesis (54)
- Working Paper (38)
- Anthology (32)
- Report (25)
- Patent / Standard / Guidelines (24)
- Issue of a journal (19)
Is part of the Bibliography
- yes (3088)
Institute
- ESB Business School (1107)
- Informatik (875)
- Technik (509)
- Life Sciences (343)
- Texoversum (220)
- Zentrale Einrichtungen (16)
Publisher
- Springer (473)
- IEEE (252)
- Elsevier (243)
- Hochschule Reutlingen (191)
- MDPI (99)
- Wiley (72)
- Gesellschaft für Informatik e.V (69)
- Universität Tübingen (65)
- De Gruyter (60)
- VDE Verlag (48)
- Association for Computing Machinery (46)
- Erich Schmidt Verlag (39)
- Association for Information Systems (32)
- IARIA (26)
- MIM, Marken-Institut München (25)
- American Chemical Society (24)
- Emerald (21)
- SciTePress (21)
- Shaker Verlag (20)
- Hanser (19)
- Taylor & Francis (18)
- Haufe (17)
- MIT Center for Information Systems Research (17)
- IOP Publishing (16)
- LIT Verlag (15)
- RWTH Aachen (15)
- Sage Publishing (15)
- Schäffer-Poeschel (15)
- Deutscher Fachverlag (14)
- Lange (14)
- Books on Demand (13)
- Stellenbosch University (13)
- Thexis Verlag (13)
- Deutsche Gesellschaft für Computer- und Roboterassistierte Chirurgie e.V. (12)
- Hochschule Ulm (12)
- Public Verlagsgesellschaft und Anzeigenagentur (11)
- Royal Society of Chemistry (11)
- Università Politecnica delle Marche (11)
- Deutsches Textilforschungszentrum Nord-West (10)
- Europäische Fernhochschule Hamburg (10)
- SPIE. The International Society for Optical Engineering (10)
- University of Hawai'i at Manoa (10)
- dfv Mediengruppe (10)
- Center for Promoting Education and Research (9)
- Curran Associates Inc. (9)
- Otto Schmidt (9)
- Routledge (9)
- UVK Verlagsgesellschaft (9)
- VDI Fachmedien (9)
- Fraunhofer Verlag (8)
- Verlagsgruppe Handelsblatt (8)
- Vahlen (7)
- American Marketing Association (6)
- Arbeitsgemeinschaft Simulation (ASIM) (6)
- Koordinierungsstelle Forschung und Entwicklung der Fachhochschulen des Landes Baden-Württemberg (6)
- Landesanstalt für Umwelt Baden-Württemberg (6)
- MIM (6)
- PLOS (6)
- Sciamus GmbH (6)
- VDI Verlag (6)
- AMD Akademie Mode & Design (5)
- Academy of Management (5)
- Common Ground Publishing (5)
- DUZ Medienhaus (5)
- Duncker & Humblot (5)
- European Association for the Development of Renewable Energy, Environment and Power Quality (5)
- Fraunhofer-Institut für Arbeitswirtschaft und Organisation (5)
- Frontiers Media (5)
- Handelsblatt Fachmedien (5)
- IBP, Internat. Business Press Publisher (5)
- Konrad-Adenauer-Stiftung (5)
- Leibniz-Universität Hannover (5)
- Macmillan Publishers Limited (5)
- Mesago Messe Frankfurt GmbH (5)
- Metropolis-Verlag (5)
- New Business Verlag (5)
- Nomos Verlagsgesellschaft (5)
- University of Zagreb (5)
- VCW (5)
- WEKA Fachmedien (5)
- American Institute of Physics (4)
- CRC Press (4)
- Cambridge University Press (4)
- Dnipro University of Technology (4)
- EMW (4)
- Gabler (4)
- Huss-Verlag (4)
- IGI Global (4)
- IdW-Verlag (4)
- OpenProceedings (4)
- PeerJ Inc. (4)
- Riga Technical University Press (4)
- Science Publishing Group (4)
- Scientific Research Publishing (4)
- Tech Science Press (4)
- The Kelley School of Business, Indiana University (4)
- University of Colorado (4)
- University of Hawaii at Manoa (4)
- University of Portsmouth (4)
- Verlag IFZ – Hochschule Luzern (4)
- World Scientific Publishing (4)
- ASME (3)
- Beck (3)
- Deutsche Gesellschaft für Computer- und Roboterassistierte Chirurgie e. V. (3)
- EuroMed Press (3)
- Hampp (3)
- Hochschulrektorenkonferenz (3)
- Hometrica Consulting (3)
- International Academy of Business Disciplines (3)
- Kohlhammer (3)
- MIT (3)
- Schmidt (3)
- Scienpress (3)
- Technische Universität Berlin (3)
- Technische Universität Chemnitz (3)
- Technische Universität Darmstadt (3)
- Technische Universität Graz (3)
- The Royal Society of Chemistry (3)
- Thieme (3)
- Tübinger Vereinigung für Volkskunde (3)
- Universität Konstanz (3)
- Universität Stuttgart (3)
- VDI (3)
- Verlag Europa-Lehrmittel (3)
- WOTech (3)
- eceee (3)
- Academic Conferences International (2)
- AfM Arbeitsgemeinschaft für Marketing (2)
- Altop Verlag (2)
- Apprimus Wissenschaftsverlag (2)
- Auto e Design Srl (2)
- Berufsverband Information Bibliothek (2)
- Bundesverband Medien und Marketing (2)
- CSW-Verlag (2)
- Centre of Sociological Research (2)
- Deutsche Aktuarvereinigung (DAV) e.V. (2)
- Deutscher Akademischer Austauschdienst (2)
- Deutscher Landwirtschaftsverlag (2)
- EDP Sciences (2)
- Fachmedien Otto Schmidt (2)
- Fraunhofer-Verbund Innovationsforschung (2)
- Frontiers Research Foundation (2)
- GITO Verlag (2)
- GMDS e.V. (2)
- HTWG Konstanz (2)
- Handelsblatt Fachmedien GmbH (2)
- Harnisch (2)
- Haufe-Lexware (2)
- Hindawi (2)
- Hochschule Furtwangen (2)
- Hochschule Nordhausen (2)
- Hochschule für öffentliche Verwaltung und Finanzen (2)
- Hüthig (2)
- IACSIT Press (2)
- IADIS (2)
- IADIS Press (2)
- IBM Research Division (2)
- IGI Publishing (2)
- IIAR (2)
- IJECM (2)
- IM Publications Open LLP (2)
- IUP Publications (2)
- Inderscience Enterprises (2)
- Infonomics Society (2)
- International Academy Publishing (2)
- International Association for Development of the Information Society (2)
- International Society for Photogrammetry and Remote Sensing (2)
- International Society for Professional Innovation Management (2)
- Karlsruher Institut für Technologie (2)
- Kerber (2)
- Kluwer (2)
- Knapp (2)
- Koordinierungsstelle (2)
- Liberales Institut der Friedrich-Naumann-Stiftung (2)
- Liebert (2)
- Lippincott Williams & Wilkins (2)
- MFG Stiftung Baden-Württemberg (2)
- MHP Management- und IT-Beratung GmbH (2)
- Marken-Institut München (2)
- Mediengruppe Oberfranken (2)
- Meta Basim Press (2)
- Nova Science Publishers (2)
- Optical Society of America (2)
- Palgrave Macmillan (2)
- Research Academy of Social Sciences (2)
- Reutlinger General-Anzeiger Verlags-GmbH & Co. KG (2)
- Scientific & Academic Publishing (2)
- Smart Home & Living Baden-Württemberg e.V. (2)
- Solutions by Handelsblatt Media Group GmbH (2)
- Steinbeis (2)
- System Dynamics Society (2)
- Technische Informationsbibliothek (2)
- The Association for Computing Machinery, Inc. (2)
- UVK Verlag (2)
- Ulrich Scholze (2)
- University College Cork (2)
- University of Novi Sad (2)
- University of São Paulo (2)
- University of the West of Scotland (2)
- Universität Hohenheim (2)
- Universität Trier (2)
- Universität Ulm (2)
- Verband Deutscher Werkzeug- und Formenbauer (2)
- Verlag Textilplus AG (2)
- Virtus Interpress (2)
- WIP (2)
- Waxmann (2)
- dtv (2)
- edition sigma (2)
- ibidem-Verlag (2)
- kopaed (2)
- medhochzwei (2)
- wbv Publikation (2)
- 3m5.Media GmbH (1)
- ADL Romania (1)
- AG der Landes- und Universitätsbibliotheken in Baden-Württemberg (1)
- AIMS Press (1)
- AKS Verlag (1)
- AMFI (1)
- AOK-Bundesverband (1)
- ARVO (1)
- Academic Conferences International Limited (1)
- Academic Publications Ltd. (1)
- Academic Star Publishing Company (1)
- Access Press UK (1)
- Adonis & Abbey (1)
- Adonis & Abbey Publishers (1)
- AlTEX Edition (1)
- Apluit (1)
- Asian Society of Business and Commerce Research (1)
- Association for Computing Machinery ACM (1)
- Association of Computing Machinery (1)
- Athens Institute for Education and Research (1)
- Atlantis Press (1)
- BAN (1)
- BBE Handelsberatung GmbH (1)
- BDI Bundesverband der Deutschen Industrie e.V. (1)
- BME (1)
- BWR media (1)
- Baltic Management Development Association (BMDA) (1)
- Bayerisches Zentrum für innovative Lehre (1)
- Beatrice Voigt Kunst und Kulturprojekte & Edition (1)
- Beilstein-Institut zur Förderung der Chemischen Wissenschaften (1)
- Beltz Juventa (1)
- British Institute of Non-Destructive Testing (1)
- Bundesakademie für Kulturelle Bildung Wolfenbüttel e.V. (1)
- Bundesministerium für Bildung und Forschung (1)
- Bundesverband Kraft-Wärme-Kopplung e. V. (1)
- Bundesverband Kraft-Wärme-Kopplung e.V. (1)
- Business Perspectives (1)
- CERN Data Centre (1)
- CESifo GmbH (1)
- CIDR (1)
- Cadence Design Systems (1)
- Canadian Center of Science and Education (1)
- Carl Hanser Verlag (1)
- Carola Hartmann Miles-Verlag (1)
- Centre for Promoting Ideas (1)
- Chr. Killinger GmbH (1)
- Circle International (1)
- Copenhagen Business School (1)
- Copernicus GmbH (1)
- Copernicus Publications (1)
- Cornell University (1)
- Cornell Universiy (1)
- Cuvillier Verlag (1)
- DEGA (1)
- DGMP (1)
- DIMECC Oy (1)
- DITF (1)
- DOVE Medical Press (1)
- DRW-Verlag (1)
- DUZ Verlags- und Medienhaus GmbH (1)
- David Publishing (1)
- De Montfort University (1)
- Delft University of Technology (1)
- Design Society (1)
- Deutsche Bundesstiftung Umwelt (1)
- Deutsche Gesellschaft für Personalführung (1)
- Deutscher Sparkassenverlag (1)
- Deutscher Taschenbuchverlag (1)
- Development and Entrepreneurship Agency (1)
- Dialogum GmbH (1)
- Dr. Beyer Internet-Beratung (1)
- Druckerei & Verlagshaus Mainz (1)
- Duale Hochschule Baden-Württemberg (1)
- ECPE European Center for Power Electronics (1)
- EMAC (1)
- EPubli (1)
- ESB Reutlingen Alumni e. V. (1)
- ESI ITI GmbH (1)
- ETA-Florence Renewable Energies (1)
- Economica (1)
- Ed2.0Work (1)
- Editio Cantor Verlag (1)
- Edizioni Novacultur (1)
- EduINDEX (1)
- Education and Novel Technology Research Association (1)
- Edward Elgar Publishing (1)
- Elektronikpraxis, Vogel Business Media GmbH & Co. KG (1)
- Energieagentur Regio Freiburg GmbH (1)
- Engineering Science Reference (1)
- Erasmus University Rotterdam (1)
- Ernst Klett (1)
- Eurographics Association (1)
- Europa-Lehrmittel (1)
- European Accounting Association (1)
- F.A.Z.-Institut für Management-, Markt- und Medieninformationen (1)
- FDPW (1)
- Fachausschuß Management der Anwendungsentwicklung und -wartung (1)
- Fachverband ...textil..e.V. (1)
- Flottmann-Hallen (1)
- Foreign Policy Research Center (1)
- Forschungsinstitut zur Zukunft der Arbeit GmbH (1)
- Francis-Verlag (1)
- Fromm (1)
- Fuks e.V. (1)
- GESIS (1)
- GRID-FTN (1)
- German Medical Science Publishing House (1)
- Gewerkschaft Erziehung und Wissenschaft (1)
- GfA-Press (1)
- Ghent University (1)
- Global Alliance of Marketing & Management Associations (1)
- Global Financial Institute (1)
- Global Science Institute (1)
- Globeedu Group (1)
- Graduiertenakademie Pädagogische Hochschulen (1)
- Gupta (1)
- Gütersloher Verlagshaus (1)
- Harvard Business School (1)
- Harvard Business School Publishing (1)
- Haupt (1)
- Heimatmuseum Reutlingen (1)
- Heizungs-Journal Verlags-GmbH (1)
- Henry Stewart Publications (1)
- Hochschule Bonn-Rhein-Sieg (1)
- Hochschule Hannover (1)
- Hochschule Heilbronn (1)
- Hochschule der Medien (1)
- Hochschule für Technik, Wirtschaft und Kultur Leipzig (1)
- Horizon Research Publishing (1)
- IDL Beratung für Integrierte DV-Lösungen (1)
- IDL GmbH Mitte (1)
- IHK Mittlerer Niederrhein (1)
- INFORMS (1)
- IWCS (1)
- Ifo (1)
- Ifo-Inst. (1)
- Ifo-Leibniz-Institut für Wirtschaftsforschung (1)
- Inderscience Publishers (1)
- Industrie- und Handelskammer Region Stuttgart (1)
- Inovatus Services (1)
- Institut für Holztechnologie (1)
- Institute of Academic Research and Publication (1)
- IntechOpen (1)
- International Federation of Automatic Control (1)
- International Management Development Association (IMDA) (1)
- International Scientific Press (1)
- International TRIZ Official Association (1)
- International Wire and Cable Symposium Inc. (1)
- J. B. Metzler (1)
- JIBRM (1)
- JMIR Publications (1)
- JoVE (1)
- Johannes Kepler University Linz (1)
- KSP Journals (1)
- KTH Royal Institute of Technology (1)
- KennisDC Logistiek (1)
- Kiehl (1)
- Kogan Page (1)
- Konradin (1)
- LAR Center Press (1)
- Lang (1)
- Lange Verlag (1)
- Lemmens (1)
- Liz Mohn Center gGmbH (1)
- Logos (1)
- Lund University (1)
- MA Akademie Verlags- und Druck-Gesellschaft mbH (1)
- MIM, Marken Institut München (1)
- Managerseminare-Verl.-GmbH (1)
- Meisenbach (1)
- Messe Offenburg-Ortenau GmbH (1)
- Middle Tennessee State University (1)
- Ministerium für Wirtschaft, Arbeit und Wohnungsbau (1)
- Morressier (1)
- Motor-Presse Stuttgart (1)
- Munich Society for the Promotion of Economic Research (1)
- National Library of Medicine (1)
- Nature Research (1)
- Newcastle University (1)
- Next Level Interactive (1)
- NextMed (1)
- North American Business Press (1)
- Ochre Media (1)
- Oemus Media (1)
- Onkel & Onkel (1)
- Open Access Publishing Group (1)
- PC Technology Center (1)
- Pabst Science Publishers (1)
- Pallas Press (1)
- Pan Stanford Publishing (1)
- Pearson (1)
- Peter Lang (1)
- Power Sources Manufacturers Association (1)
- Pro Business (1)
- Publications Office of the European Union (1)
- Qatar University (1)
- Qeios (1)
- RMIT University (1)
- Raabe (1)
- Rek & Thomas Medien AG (1)
- Revista Portuguesa de Filosofia (RPF) (1)
- SAGE Publications Ltd (1)
- SAIIE (1)
- SATC (1)
- SISSA (1)
- Sakarya University (1)
- Schlütersche Verlags-Gesellschaft (1)
- Scholze (1)
- Schweizerbart Science Publishers (1)
- SciKA (1)
- SciKa (1)
- Sciedu Press (1)
- Sciencedomain international (1)
- Sciendo (1)
- Scientific research publishing (1)
- Society for Industrial and Systems Engineering (1)
- Society for Personality and Social Psychology (1)
- Society for Science and Education (1)
- Solutions by Handelsblatt Media Group (1)
- Springer Nature (1)
- Swiss Marketing (1)
- Symposion Publishing (1)
- Sächsisches Textilforschungsinstitut e.V. (1)
- Süddeutsche Zeitung GmbH (1)
- Süddeutscher Verlag Veranstaltungen GmbH (1)
- Talent First Network (1)
- Tamkang University (1)
- Tarquin (1)
- TeDo-Verlag (1)
- Technical Conference Management (1)
- Technical University (1)
- Technische Akademie Esslingen (1)
- Technische Universität Bergakademie Freiberg (1)
- Technische Universität Dresden (1)
- Tectum Verlag (1)
- The Association for Computing Machinery (1)
- The British Institute of Non-Destructive Testing (1)
- The Design Society (1)
- Tomas Bata University in Zlín (1)
- Trans Tech Publications Ltd (1)
- Treuhand-Kammer, Schweizerische Kammer der Wirtschaftsprüfer, Steuerexperten und Treuhandexperten (1)
- UVK (1)
- UVW, Universitätsverlag Verlag Webler (1)
- Umwelttechnik BW GmbH (1)
- Universidad Carlos III de Madrid (1)
- Universitat Politècnica de València (1)
- University of Belgrade (1)
- University of Illinois (1)
- University of Jaén (1)
- University of Maribor Press (1)
- University of Minho (1)
- University of Technology and Economics (1)
- University of Waikato (1)
- University of Zagreb Faculty of Organization and Informatics (1)
- Universität Bremen (1)
- Universität Hannover (1)
- Universität Leipzig (1)
- Universität St. Gallen (1)
- Universität des Saarlandes (1)
- VKU Verlag (1)
- VS Verlag für Sozialwissenschaften (1)
- Vereinigung der Bayerischen Wirtschaft e. V. (1)
- Verlag Dr. Kovač (1)
- Verlag Drums & Percussion (1)
- Verlag Moderne Industrie (1)
- Verlag Werben & Verkaufen (1)
- Verlag Werner Hülsbusch, Fachverlag für Medientechnik und - wirtschaft (1)
- Vogel (1)
- Vogel Business Media (1)
- Vogel Business Media AG (1)
- WGTL (1)
- WIKOMedia Verlag für Kommunale und Wirtschaftsmedien GmbH (1)
- Warsaw School of Economics, Department of Human Capital Development (1)
- Westburn Publishers (1)
- Wilhelm-Fabry-Museum (1)
- Wissenschaft und Praxis (1)
- Wissenschaftliche Verlagsgesellschaft (1)
- Wochenschau Verlag (1)
- Wydawnictwo Uniwersytetu Jagiellońskiego (1)
- Xi'an Polytechnic University (1)
- ZBW (1)
- ZIM-Kooperationsnetzwerk Region Neckar-Alb (1)
- av-news (1)
- b.i.t. Verlag (1)
- dpunkt-Verlag (1)
- dpw-Verlagsgesellschaft (1)
- epubli (1)
- fortiss GmbH (1)
- gws-netzwerk für Systemische Organisations- und Personalentwicklung e.V. (1)
- ifo Institut - Leibniz-Institut für Wirtschaftsforschung an der Universität München, München (1)
- imc (1)
- libreriauniversitaria.it.edizioni (1)
- managerSeminare Verlags GmbH (1)
- pVS - pro Verlag und Service GmbH & Co. KG (1)
- uni-edition (1)
- vdf Hochschulverlag AG an der ETH Zürich (1)
- vwh Verlag Werner Hülsbusch (1)
- Österreichischer Verband der Wirtschaftsingenieure (1)
An advanced ‘clickECM’ that can be modified by the inverse-electron demand Diels-Alder reaction
(2021)
The extracellular matrix (ECM) represents the natural environment of cells in tissue and therefore is a promising biomaterial in a variety of applications. Depending on the purpose, it is necessary to equip the ECM with specific addressable functional groups for further modification with bioactive molecules, for controllable cross-linking and/or covalent binding to surfaces. Metabolic glycoengineering (MGE) enables the specific modification of the ECM with such functional groups without affecting the native structure of the ECM. In a previous approach (S. M. Ruff, S. Keller, D. E. Wieland, V. Wittmann, G. E. M. Tovar, M. Bach, P. J. Kluger, Acta Biomater. 2017, 52, 159–170), we demonstrated the modification of an ECM with azido groups, which can be addressed by bioorthogonal copper-catalyzed azide-alkyne cycloaddition (CuAAC). Here, we demonstrate the modification of an ECM with dienophiles (terminal alkenes, cyclopropene), which can be addressed by an inverse-electron-demand Diels-Alder (IEDDA) reaction. This reaction is cell friendly as there are no cytotoxic catalysts needed. We show the equipment of the ECM with a bioactive molecule (enzyme) and prove that the functional groups do not influence cellular behavior. Thus, this new material has great potential for use as a biomaterial, which can be individually modified in a wide range of applications.
Guerrilla marketing is the selection of atypical and non-dogmatic marketing activities that aim to achieve the greatest possible impact – in the ideal case with a comparable minimum investment. Guerrilla marketing has developed into a basic strategy overarching the marketing mix, a basic marketing policy attitude for market development that goes off the beaten track to consciously seek new, unconventional, previously disregarded, possibly even frown-upon possibilities for the deployment of tools. Digital marketing tools such as social media provide new ways and promising opportunities for innovative guerrilla marketing. This article provides an overview of innovative digital guerrilla marketing. It describes and structures guerrilla marketing in a novel form and shows illustrating examples as well as developmental trends.
Dieser Beitrag entwickelt ein Managementmodell, das Unternehmen dabei unterstützt, relevante Aktionsfelder zur nachhaltigen Steuerung von Konsumenten entlang der eigenen Customer Journey zu identifizieren. Aufbauend auf dem SHIFT-Modell, als strukturelle Abbildung des nachhaltigen Käuferverhaltens, wird die Customer Journey entlang der owned, paid und earned Touchpoints aufgezogen. Mithilfe des faktisch analytischen Ansatzes, der die Integration neuer Erkenntnisse in die Forschungsstrategie unterstützt, werden Aktionsfelder identifiziert, die als grundlegende Logik Unternehmen dazu anleiten sollen, bei der Ausgestaltung der eigenen nachhaltigen Customer Journey dieses Strukturraster anzunehmen.
This paper illustrates the implementation of series connected hardware modules as part of a scalable and modular power electronics device, which is ideally suited in the field of electric vehicles using wide bandgap semiconductor devices. The main benefit of the modular concept is that different current or voltage requirements can be satisfied based on the appropriate series or parallel connection of single modules. The particular design is based on the fact that the single modules generate a continuous and specified output voltage from a given dc voltage. The current work focuses on a brief classification of this work in different series connected concepts of power converters and in particular on an active damping approach for the series connected LC output filters based on inductor current feedback.
A hybrid deep registration of MR scans to interventional ultrasound for neurosurgical guidance
(2021)
Despite the recent advances in image-guided neurosurgery, reliable and accurate estimation of the brain shift still remains one of the key challenges. In this paper, we propose an automated multimodal deformable registration method using hybrid learning-based and classical approaches to improve neurosurgical procedures. Initially, the moving and fixed images are aligned using classical affine transformation (MINC toolkit), and then the result is provided to the convolutional neural network, which predicts the deformation field using backpropagation. Subsequently, the moving image is transformed using the resultant deformation into a moved image. Our model was evaluated on two publicly available datasets: the retrospective evaluation of cerebral tumors (RESECT) and brain images of tumors for evaluation (BITE). The mean target registration errors have been reduced from 5.35 ± 4.29 to 0.99 ± 0.22 mm in the RESECT and from 4.18 ± 1.91 to 1.68 ± 0.65 mm in the BITE. Experimental results showed that our method improved the state-of-the-art in terms of both accuracy and runtime speed (170 ms on average). Hence, the proposed method provides a fast runtime for 3D MRI to intra-operative US pair in a GPU-based implementation, which shows a promise for its applicability in assisting the neurosurgical procedures compensating for brain shift.
The halo effect is a cognitive bias known from social psychology. A halo effect occurs when a global impression or information about a salient characteristic shapes the evaluation of other characteristics. In a sports-related context, the halo effect has hardly been researched so far, although this could contribute significantly to understanding the thinking and behavior of sports fans. In this research paper, the following questions are investigated: Is there a halo effect in soccer? Does the sporting success or failure of a club outshine other sporting aspects? Does sporting success or failure possibly even distort fans' perception of non-sporting aspects? The research paper reflects the current state of halo research and presents the results of an empirical study in which fans of soccer clubs from the German Bundesliga were interviewed. The results of the analyses substantiate the distortion of the fans’ perception with regard to a very diverse range of aspects that is triggered by the sporting success or failure of their favorite club.
Bausparverträge sind kombinierte Spar- und Finanzierungsinstrumente, die für die breite Bevölkerung ausgelegt sind. Im Jahr 2020 umfasste der Bestand an Bausparverträgen in Deutschland ca. 25 Mio. Verträge. Ein wesentlicher Teil der Attraktivität des Bausparvertrags für Kunden liegt in der hohen Flexibilität dieser Finanzprodukte, die im Vertragsablauf eine flexible Anpassung an individuelle Finanzierungsbedingungen ermöglicht. In der Sparphase sind das insbesondere Möglichkeiten zur Erhöhung, Ermäßigung und Teilung der Verträge sowie zur relativ flexiblen Anpassung der Sparrate. Bei einem zuteilungsreifen Vertrag kann die Sparphase innerhalb bestimmter zeitlicher Grenzen fortgesetzt werden. In der Darlehensphase sind flexible Sondertilgungen jederzeit und ohne Vorfälligkeitsentschädigung möglich.
Die Vielzahl eingebetteter Optionen beeinflussen sich wechselseitig und müssen in ihrer Wirkungsweise immer gesamthaft betrachtet und gesteuert werden. Die empirische Erfahrung der letzten Jahrzehnte zeigt bezüglich der Optionsausübung ein Kundenverhalten, das sich zwar an finanzmathematischen Überlegungen orientiert, aber nicht vollständig finanzrational abläuft.
Distributed ledger technologies such as the blockchain technology offer an innovative solution to increase visibility and security to reduce supply chain risks. This paper proposes a solution to increase the transparency and auditability of manufactured products in collaborative networks by adopting smart contract-based virtual identities. Compared with existing approaches, this extended smart contract-based solution offers manufacturing networks the possibility of involving privacy, content updating, and portability approaches to smart contracts. As a result, the solution is suitable for the dynamic administration of complex supply chains.
To correctly assess the cleanliness of technical surfaces in a production process, corresponding online monitoring systems must provide sufficient data. A promising method for fast, large-area, and non-contact monitoring is hyperspectral imaging (HSI), which was used in this paper for the detection and quantification of organic surface contaminations. Depending on the cleaning parameter constellation, different levels of organic residues remained on the surface. Afterwards, the cleanliness was determined by the carbon content in the atom percent on the sample surfaces, characterized by XPS and AES. The HSI data and the XPS measurements were correlated, using machine learning methods, to generate a predictive model for the carbon content of the surface. The regression algorithms elastic net, random forest regression, and support vector machine regression were used. Overall, the developed method was able to quantify organic contaminations on technical surfaces. The best regression model found was a random forest model, which achieved an R2 of 0.7 and an RMSE of 7.65 At.-% C. Due to the easy-to-use measurement and the fast evaluation by machine learning, the method seems suitable for an online monitoring system. However, the results also show that further experiments are necessary to improve the quality of the prediction models.
Employing diffuse reflection ultraviolet visible (UV–Vis) spectroscopy we developed an approach that is capable to quantitatively determine flux residues on a technical copper surface. The technical copper surface was soldered with a no-clean flux system of organic acids. By a post-solder cleaning step with different cleaning parameters, various levels of residues were produced. The surface was quantitatively and qualitatively characterized using X-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), Fourier transform infrared spectroscopy (FTIR) and diffuse reflection UV–Vis spectroscopy. With the use of a multivariate analysis (MVA) we examined the UV–Vis data to create a correlation to the carbon content on the surface. The UV–Vis data could be discriminated for all groups by their level of organic residues. Combined with XPS the data were evaluated by a partial least squares (PLS) regression to establish a model. Based on this predictive model, the carbon content was calculated with an absolute error of 2.7 at.%. Due to the high correlation of predictive model, the easy-to-use measurement and the evaluation by multivariate analysis the developed method seems suitable for an online monitoring system. With this system, flux residues can be detected in a manufacturing cleaning process of technical surfaces after soldering.