@inproceedings{RojahnGronau2023, author = {Rojahn, Marcel and Gronau, Norbert}, title = {Digital platform concepts for manufacturing companies}, series = {10th International Conference on Future Internet of Things and Cloud (FiCloud)}, booktitle = {10th International Conference on Future Internet of Things and Cloud (FiCloud)}, publisher = {IEEE}, address = {[Erscheinungsort nicht ermittelbar]}, isbn = {979-8-3503-1635-3}, doi = {10.1109/FiCloud58648.2023.00030}, pages = {149 -- 158}, year = {2023}, abstract = {Digital Platforms (DPs) has established themself in recent years as a central concept of the Information Technology Science. Due to the great diversity of digital platform concepts, clear definitions are still required. Furthermore, DPs are subject to dynamic changes from internal and external factors, which pose challenges for digital platform operators, developers and customers. Which current digital platform research directions should be taken to address these challenges remains open so far. The following paper aims to contribute to this by outlining a systematic literature review (SLR) on digital platform concepts in the context of the Industrial Internet of Things (IIoT) for manufacturing companies and provides a basis for (1) a selection of definitions of current digital platform and ecosystem concepts and (2) a selection of current digital platform research directions. These directions are diverted into (a) occurrence of digital platforms, (b) emergence of digital platforms, (c) evaluation of digital platforms, (d) development of digital platforms, and (e) selection of digital platforms.}, language = {en} } @inproceedings{RojahnGronau2024, author = {Rojahn, Marcel and Gronau, Norbert}, title = {Openness indicators for the evaluation of digital platforms between the launch and maturity phase}, series = {Proceedings of the 57th Annual Hawaii International Conference on System Sciences}, booktitle = {Proceedings of the 57th Annual Hawaii International Conference on System Sciences}, editor = {Bui, Tung X.}, publisher = {Department of IT Management Shidler College of Business University of Hawaii}, address = {Honolulu, HI}, isbn = {978-0-99813-317-1}, pages = {4516 -- 4525}, year = {2024}, abstract = {In recent years, the evaluation of digital platforms has become an important focus in the field of information systems science. The identification of influential indicators that drive changes in digital platforms, specifically those related to openness, is still an unresolved issue. This paper addresses the challenge of identifying measurable indicators and characterizing the transition from launch to maturity in digital platforms. It proposes a systematic analytical approach to identify relevant openness indicators for evaluation purposes. The main contributions of this study are the following (1) the development of a comprehensive procedure for analyzing indicators, (2) the categorization of indicators as evaluation metrics within a multidimensional grid-box model, (3) the selection and evaluation of relevant indicators, (4) the identification and assessment of digital platform architectures during the launch-to-maturity transition, and (5) the evaluation of the applicability of the conceptualization and design process for digital platform evaluation.}, language = {en} } @inproceedings{RudianHaasePinkwart2022, author = {Rudian, Sylvio Leo and Haase, Jennifer and Pinkwart, Niels}, title = {Predicting creativity in online courses}, series = {2022 International Conference on Advanced Learning Technologies (ICALT)}, booktitle = {2022 International Conference on Advanced Learning Technologies (ICALT)}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-6654-9519-6}, doi = {10.1109/ICALT55010.2022.00056}, pages = {164 -- 168}, year = {2022}, abstract = {Many prediction tasks can be done based on users' trace data. This paper explores divergent and convergent thinking as person-related attributes and predicts them based on features gathered in an online course. We use the logfile data of a short Moodle course, combined with an image test (IMT), the Alternate Uses Task (AUT), the Remote Associates Test (RAT), and creative self-efficacy (CSE). Our results show that originality and elaboration metrics can be predicted with an accuracy of ~.7 in cross-validation, whereby predicting fluency and RAT scores perform worst. CSE items can be predicted with an accuracy of ~.45. The best performing model is a Random Forest Tree, where the features were reduced using a Linear Discriminant Analysis in advance. The promising results can help to adjust online courses to the learners' needs based on their creative performances.}, language = {en} } @inproceedings{RungrottheeraChangSchulze2020, author = {Rungrottheera, Wannarut and Chang, Der-Chen and Schulze, Bert-Wolfgang}, title = {The edge calculus of singularity order >3}, series = {Journal of nonlinear and convex analysis : an international journal}, volume = {21}, booktitle = {Journal of nonlinear and convex analysis : an international journal}, number = {2}, publisher = {Yokohama Publishers}, address = {Yokohama}, issn = {1345-4773}, pages = {387 -- 401}, year = {2020}, abstract = {We study Mellin pseudo-differential algebras on singular straight cones and manifolds with singularity of order >= 3. Those are necessary to express parametrices of elliptic differential operators with a corresponding cornerdegenerate behavior, and we obtain regularity in weighted spaces.}, language = {en} } @inproceedings{RuedianHaasePinkwart2021, author = {R{\"u}dian, Sylvio Leo and Haase, Jennifer and Pinkwart, Niels}, title = {The relation of convergent thinking and trace data in an online course}, series = {Die 19. Fachtagung Bildungstechnologien (DELFI) / Lecture Notes in Informatics (LNI)}, booktitle = {Die 19. Fachtagung Bildungstechnologien (DELFI) / Lecture Notes in Informatics (LNI)}, publisher = {Gesellschaft f{\"u}r Informatik}, address = {Bonn}, pages = {181 -- 186}, year = {2021}, abstract = {Many prediction tasks can be done based on users' trace data. In this paper, we explored convergent thinking as a personality-related attribute and its relation to features gathered in interactive and non-interactive tasks of an online course. This is an under-utilized attribute that could be used for adapting online courses according to the creativity level to enhance the motivation of learners. Therefore, we used the logfile data of a 60 minutes Moodle course with N=128 learners, combined with the Remote Associates Test (RAT). We explored the trace data and found a weak correlation between interactive tasks and the RAT score, which was the highest considering the overall dataset. We trained a Random Forest Regressor to predict convergent thinking based on the trace data and analyzed the feature importance. The result has shown that the interactive tasks have the highest importance in prediction, but the accuracy is very low. We discuss the potential for personalizing online courses and address further steps to improve the applicability.}, language = {en} } @inproceedings{Saalfrank2018, author = {Saalfrank, Peter}, title = {Laser-pulse driven electron dynamics and their control treated by wave function methods}, series = {Abstracts of papers : joint conference / The Chemical Institute of Cananda, CIC, American Chemical Society, ACS}, volume = {256}, booktitle = {Abstracts of papers : joint conference / The Chemical Institute of Cananda, CIC, American Chemical Society, ACS}, publisher = {American Chemical Society}, address = {Washington}, issn = {0065-7727}, pages = {1}, year = {2018}, language = {en} } @inproceedings{SanterZakrevskyy2013, author = {Santer, Svetlana and Zakrevskyy, Yuriy}, title = {Reversible light-controlled compaction of soft colloids by azobenzene containing surfactant}, series = {Abstracts of papers : joint conference / The Chemical Institute of Cananda, CIC, American Chemical Society, ACS}, volume = {245}, booktitle = {Abstracts of papers : joint conference / The Chemical Institute of Cananda, CIC, American Chemical Society, ACS}, publisher = {American Chemical Society}, address = {Washington}, issn = {0065-7727}, pages = {1}, year = {2013}, language = {en} } @inproceedings{SapirRoticsKaatzetal.2013, author = {Sapir, N. and Rotics, S. and Kaatz, M. and Davidson, S. and Zurell, Damaris and Eggers, U. and Jeltsch, Florian and Nathan, R. and Wikelski, M.}, title = {Multi-year tracking of white storks (Ciconia ciconia) how the environment shapes the movement and behavior of a soaring-gliding inter-continental migrant}, series = {Integrative and comparative biology}, volume = {53}, booktitle = {Integrative and comparative biology}, number = {3}, publisher = {Oxford Univ. Press}, address = {Cary}, issn = {1540-7063}, pages = {E189 -- E189}, year = {2013}, language = {en} } @inproceedings{SauterLuetzowSchossigetal.2013, author = {Sauter, Tilman and L{\"u}tzow, Karola and Schossig, Michael and Kosmella, Hans and Weigel, Thomas and Kratz, Karl and Lendlein, Andreas}, title = {Pore morphology as structural parameter to tailor the shape-memory effect of polyuetherurethane foams}, series = {Abstracts of papers : joint conference / The Chemical Institute of Cananda, CIC, American Chemical Society, ACS}, volume = {245}, booktitle = {Abstracts of papers : joint conference / The Chemical Institute of Cananda, CIC, American Chemical Society, ACS}, publisher = {American Chemical Society}, address = {Washington}, issn = {0065-7727}, pages = {1}, year = {2013}, language = {en} } @inproceedings{SchadJuengerSeboldetal.2014, author = {Schad, Daniel and Juenger, Elisabeth and Sebold, Miriam and Garbusow, Maria and Bernhart, Nadine and Javadi, Amir Homayoun and Zimmermann, Ulrich S. and Smolka, Michael N. and Heinz, Andreas and Rapp, Michael A. and Huys, Quentin J. M.}, title = {Smart goals, slow habits? Individual differences in processing speed and working memory capacity moderate the balance between habitual and goal-directed choice behavior}, series = {Cognitive processing : international quarterly of cognitive science}, volume = {15}, booktitle = {Cognitive processing : international quarterly of cognitive science}, number = {1}, publisher = {Springer}, address = {Heidelberg}, issn = {1612-4782}, pages = {S62 -- S62}, year = {2014}, language = {en} } @inproceedings{SchaperKietzmannKleuseretal.2012, author = {Schaper, K. and Kietzmann, M. and Kleuser, Burkhard and Baeumer, W.}, title = {Effects of sphingosine-1-phosphate and FTY720 on epidermal hyperproliferation and inflammation in an imiquimod induced mouse model of psoriasis}, series = {NAUNYN-SCHMIEDEBERGS ARCHIVES OF PHARMACOLOGY}, volume = {385}, booktitle = {NAUNYN-SCHMIEDEBERGS ARCHIVES OF PHARMACOLOGY}, number = {3}, publisher = {Springer}, address = {New York}, issn = {0028-1298}, pages = {80 -- 80}, year = {2012}, language = {en} } @inproceedings{ScharhagHotzkowKopinskietal.2012, author = {Scharhag, J{\"u}rgen and Hotzkow, Kristin and Kopinski, Stephan and Barche, Martin and Mayer, Frank}, title = {Echocardiographic 3d speckle tracking values on cardiac wall motion in elite adult, adolescent and pediatric athletes}, series = {Medicine and science in sports and exercise : official journal of the American College of Sports Medicine}, volume = {44}, booktitle = {Medicine and science in sports and exercise : official journal of the American College of Sports Medicine}, publisher = {Lippincott Williams \& Wilkins}, address = {Philadelphia}, issn = {0195-9131}, pages = {241 -- 241}, year = {2012}, language = {en} } @inproceedings{ScharhagRosenbergerCarlsohnSchueleretal.2012, author = {Scharhag-Rosenberger, Friederike and Carlsohn, Anja and Sch{\"u}ler, Stefan and Lundby, Carsten and Mayer, Frank and Scharhag, J{\"u}rgen}, title = {Physiological changes over four maximal incremental cycling tests within one day}, series = {Medicine and science in sports and exercise : official journal of the American College of Sports Medicine}, volume = {44}, booktitle = {Medicine and science in sports and exercise : official journal of the American College of Sports Medicine}, publisher = {Lippincott Williams \& Wilkins}, address = {Philadelphia}, issn = {0195-9131}, pages = {933 -- 934}, year = {2012}, language = {en} } @inproceedings{Scheffler2011, author = {Scheffler, Christiane}, title = {How many skeletons do we need? - An evolutionary approach of the change of skeleton measures in school children in the last decade}, series = {Journal of biological and clinical anthropology : Anthropologischer Anzeiger ; Mitteilungsorgan der Gesellschaft f{\"u}r Anthropologie}, volume = {68}, booktitle = {Journal of biological and clinical anthropology : Anthropologischer Anzeiger ; Mitteilungsorgan der Gesellschaft f{\"u}r Anthropologie}, number = {4}, publisher = {Schweizerbart}, address = {Stuttgart}, issn = {0003-5548}, pages = {519 -- 519}, year = {2011}, language = {en} } @inproceedings{SchenkeSchjeidePuescheletal.2021, author = {Schenke, Maren and Schjeide, Brit-Maren and P{\"u}schel, Gerhard Paul and Seeger, Bettina}, title = {Serotype-specific sensitivity to Botulinum neurotoxins of iPSC-derived motor neurons}, series = {Naunyn-Schmiedeberg's archives of pharmacology}, volume = {394}, booktitle = {Naunyn-Schmiedeberg's archives of pharmacology}, number = {Suppl. 1}, publisher = {Springer}, address = {Berlin ; Heidelberg}, issn = {0028-1298}, doi = {10.1007/s00210-021-02066-6}, pages = {S4 -- S4}, year = {2021}, language = {en} } @inproceedings{SchenkeSchjeidePuescheletal.2020, author = {Schenke, Maren and Schjeide, Brit-Maren and P{\"u}schel, Gerhard and Seeger, Bettina}, title = {Human motor neurons diffentiated from plutipotent stem cells as superior traged cells for botulinum neuotoxin potency testing}, series = {Naunyn-Schmiedeberg's archives of pharmacology}, volume = {393}, booktitle = {Naunyn-Schmiedeberg's archives of pharmacology}, number = {SUPPL 1}, publisher = {Springer}, address = {Berlin ; Heidelberg}, issn = {0028-1298}, doi = {10.1007/s00210-020-01828-y}, pages = {S10 -- S10}, year = {2020}, language = {en} } @inproceedings{SchlaadLuedecke2019, author = {Schlaad, Helmut and Luedecke, Nils}, title = {Bio-sourced chelating poly(2-oxazoline)s}, series = {Abstracts of papers : joint conference / The Chemical Institute of Cananda, CIC, American Chemical Society, ACS}, volume = {257}, booktitle = {Abstracts of papers : joint conference / The Chemical Institute of Cananda, CIC, American Chemical Society, ACS}, publisher = {American Chemical Society}, address = {Washington}, issn = {0065-7727}, pages = {1}, year = {2019}, language = {en} } @inproceedings{Schladebach2022, author = {Schladebach, Marcus}, title = {Satelliten-Megakonstellationen im Weltraumrecht}, series = {Tagungsband zur Sommerkonferenz 2022 : Telemedicus - Recht der Informationsgesellschaft}, volume = {6}, booktitle = {Tagungsband zur Sommerkonferenz 2022 : Telemedicus - Recht der Informationsgesellschaft}, editor = {Gr{\"a}fe, Hans-Christian}, publisher = {Fachmedien Recht und Wirtschaft, dfv Mediengruppe}, address = {Frankfurt am Main}, isbn = {978-3-8005-1857-9}, pages = {68 -- 75}, year = {2022}, language = {de} } @inproceedings{SchlosserBoissier2017, author = {Schlosser, Rainer and Boissier, Martin}, title = {Optimal price reaction strategies in the presence of active and passive competitors}, series = {Proceedings of the 6th International Conference on Operations Research and Enterprise Systems - ICORES}, booktitle = {Proceedings of the 6th International Conference on Operations Research and Enterprise Systems - ICORES}, editor = {Liberatore, Federico and Parlier, Greg H. and Demange, Marc}, publisher = {SCITEPRESS - Science and Technology Publications, Lda.}, address = {Set{\´u}bal}, isbn = {978-989-758-218-9}, doi = {10.5220/0006118200470056}, pages = {47 -- 56}, year = {2017}, abstract = {Many markets are characterized by pricing competition. Typically, competitors are involved that adjust their prices in response to other competitors with different frequencies. We analyze stochastic dynamic pricing models under competition for the sale of durable goods. Given a competitor's pricing strategy, we show how to derive optimal response strategies that take the anticipated competitor's price adjustments into account. We study resulting price cycles and the associated expected long-term profits. We show that reaction frequencies have a major impact on a strategy's performance. In order not to act predictable our model also allows to include randomized reaction times. Additionally, we study to which extent optimal response strategies of active competitors are affected by additional passive competitors that use constant prices. It turns out that optimized feedback strategies effectively avoid a decline in price. They help to gain profits, especially, when aggressive competitor s are involved.}, language = {en} } @inproceedings{Schneider2006, author = {Schneider, Hans Julius}, title = {Was heißt "einer Regel nicht folgen"?}, series = {Kreativit{\"a}t}, booktitle = {Kreativit{\"a}t}, publisher = {Meiner}, address = {Hamburg}, isbn = {978-3-7873-1766-0}, pages = {785 -- 799}, year = {2006}, language = {de} }