TY - GEN A1 - Pucher, Robert T1 - Neueste Entwicklungen im Bereich der Firewalls KW - Firewall Y1 - 2019 ER - TY - GEN A1 - Pucher, Robert T1 - Ist Opensource die sichere Alternative? KW - Open Source Y1 - 2019 ER - TY - CHAP A1 - Pucher, Karl A1 - Pucher, Robert T1 - Design of ventilation system used in long vehicle tunnels T2 - Book of Abstracts / The Third International Conference / Tools for mathematical modelling / Saint Petersburg State University / 18 - 23 June 2001 / Saint Petersburg (Russland) / p. 49 KW - Ventilation KW - Tunnel Y1 - 2019 ER - TY - GEN A1 - Pucher, Robert T1 - Security im Web-based Workflow Identifizierung und Authentifizierung bei unternehmensübergreifenden Prozessen KW - Security KW - Web Application KW - Authentification Y1 - 2019 ER - TY - GEN A1 - Pucher, Karl A1 - Pucher, Robert T1 - Design of ventilation system used in long vehicle tunnels KW - Ventilation KW - Tunnel Y1 - 2019 ER - TY - CHAP A1 - Pucher, Robert T1 - Wie sicher ist Ihre EDV T2 - Eigenverlag Institute of International Research / Tagungsband der IIR Konferenz / IT für EVUs / Wien / 24.-25.1.2000 KW - Security Y1 - 2019 ER - TY - GEN A1 - Mense, Alexander T1 - Gefahrenquelle und Bedrohungsszenarien durch das Internet KW - Security Y1 - 2019 ER - TY - GEN A1 - Mense, Alexander T1 - Aktuelle Gefahren für die Unternehmenssicherheit KW - Security Y1 - 2019 ER - TY - JOUR A1 - Munsch, Nicolas A1 - Gruarin, Stefanie A1 - Nateqi, Jama A1 - Lutz, Thomas A1 - Binder, Michael A1 - Aberle, Judith H. A1 - Martin, Alistair A1 - Knapp, Bernhard T1 - Symptoms associated with a COVID-19 infection among a non-hospitalized cohort in Vienna JF - Wiener Klinische Wochenschrift / The Central European Journal of Medicine N2 - Background: Most clinical studies report the symptoms experienced by those infected with coronavirus disease 2019 (COVID-19) via patients already hospitalized. Here we analyzed the symptoms experienced outside of a hospital setting. Methods: The Vienna Social Fund (FSW; Vienna, Austria), the Public Health Services of the City of Vienna (MA15) and the private company Symptoma collaborated to implement Vienna's official online COVID-19 symptom checker. Users answered 12 yes/no questions about symptoms to assess their risk for COVID-19. They could also specify their age and sex, and whether they had contact with someone who tested positive for COVID-19. Depending on the assessed risk of COVID-19 positivity, a SARS-CoV‑2 nucleic acid amplification test (NAAT) was performed. In this publication, we analyzed which factors (symptoms, sex or age) are associated with COVID-19 positivity. We also trained a classifier to correctly predict COVID-19 positivity from the collected data. Results: Between 2 November 2020 and 18 November 2021, 9133 people experiencing COVID-19-like symptoms were assessed as high risk by the chatbot and were subsequently tested by a NAAT. Symptoms significantly associated with a positive COVID-19 test were malaise, fatigue, headache, cough, fever, dysgeusia and hyposmia. Our classifier could successfully predict COVID-19 positivity with an area under the curve (AUC) of 0.74. Conclusion: This study provides reliable COVID-19 symptom statistics based on the general population verified by NAATs. Keywords: Chatbot; Machine learning; Self-reported; Symptom assessment; Symptom checker. KW - COVID-19 KW - Chatbot KW - Machine learning KW - Self-reported KW - Symptom assessment Y1 - VL - 2022 IS - 134 (9-10) SP - 344 EP - 350 PB - Springer ER - TY - GEN A1 - Hrastansky, Thomas T1 - Phishing: Targeting YouTube Content Creators N2 - Vortrag im Zuge des Security Monats in Form des FHTW Security Potpourri 2022 KW - Phishing KW - IT-Security KW - YouTube Y1 - ER - TY - GEN A1 - Pucher, Robert A1 - Schordan, Markus A1 - Brezowar, Gabriela A1 - Kollmitzer, Christian A1 - Schmöllebeck, Fritz T1 - Will E-Learning Become the Predominant Method of Teaching at Universities? Experiences with Different Forms of Teaching KW - eLearning KW - Teaching KW - Education KW - University Y1 - 2019 ER - TY - CHAP A1 - Pucher, Robert A1 - Tesar, Michael A1 - Mandl, Thomas A1 - Holweg, Gerd A1 - Schmöllebeck, Fritz T1 - GEMIS and QUADRO - Two Projects to Improve Didactics in Computer Science T2 - Proceedings of the IEEEAM International Conference on Applied Computer Science (ACS), Malta KW - Didactics KW - Computer Science KW - Teaching Y1 - 2019 SP - 563 EP - 568 ER - TY - JOUR A1 - Pucher, Robert A1 - Tesar, Michael A1 - Mandl, Thomas A1 - Holweg, Gerd A1 - Schmöllebeck, Fritz T1 - Improving Didactics in Computer Science - The Example of the GEMIS and the QUADRO Projects JF - International Journal of Education and Information Technologies KW - Didactics KW - Computer Science KW - Education Y1 - 2019 VL - 1 IS - 5 ER - TY - GEN A1 - Pucher, Robert A1 - Tesar, Michael A1 - Mandl, Thomas A1 - Holweg, Gerd A1 - Schmöllebeck, Fritz T1 - GEMIS and QUADRO - Two Projects to Improve Didactics in Computer Science KW - Didactics KW - Computer Science KW - Teaching Y1 - 2019 ER - TY - GEN A1 - Schordan, Markus A1 - Kollmitzer, Christian A1 - Pucher, Robert A1 - Brezowar, Gabriela T1 - How to Convert a Traditional Course in Programming into an Online Course KW - Programming KW - eLearning KW - University Course Y1 - 2019 ER - TY - CHAP A1 - Pucher, Robert A1 - Lehner, Martin T1 - Project Based Learning in Computer Science – A Review of More Than 500 Projects T2 - Book of abstracts, international conference on education & educational psychology KW - Project Based Learning KW - Computer Science Y1 - 2019 ER - TY - GEN A1 - Pucher, Robert A1 - Lehner, Martin T1 - Project Based Learning in Computer Science – A Review of More Than 500 Projects KW - Project Based Learning KW - Computer Science Y1 - 2019 ER - TY - JOUR A1 - Pucher, Robert A1 - Lehner, Martin T1 - Project Based Learning in Computer Science JF - Procedia - Social and Behavioral Sciences, Volume 29, 2011, Pages 1561-1566, ISSN 1877-0428, KW - Project Based Learning KW - Computer Science Y1 - 2019 ER - TY - GEN A1 - Simeonov, Emil T1 - Living Mathematics—some limits for abstraction in mathematics and their relation to experience KW - Mathematics Y1 - ER - TY - CHAP A1 - Simeonov, Emil T1 - Is Mathematics an Issue of General Education? T2 - Mathematical Cultures: The London Meetings 2012-2014 KW - Mathematics KW - Education Y1 - 2018 ER - TY - GEN A1 - Simeonov, Emil A1 - Pieronkiewicz, Barbara T1 - The Global Math Project KW - Mathematics Y1 - 2018 ER - TY - GEN A1 - Simeonov, Emil T1 - Is Mathematics an Issue of General Education? KW - Mathematics KW - Education Y1 - 2018 ER - TY - CHAP A1 - Pucher, Robert A1 - Brezowar, Gabriela A1 - Kollmitzer, Christian A1 - Schmöllebeck, Fritz T1 - Audio Files for Mobile Devices - A Valuable Method for Teaching? T2 - Proceedings of the International Conference on E-Learning in the Workplace KW - Mobile Application KW - Teaching KW - Education Y1 - 2019 ER - TY - GEN A1 - Pucher, Robert A1 - Brezowar, Gabriela A1 - Kollmitzer, Christian A1 - Schmöllebeck, Fritz T1 - Audio Files for Mobile Devices - A Valuable Method for Teaching? KW - Mobile Application KW - Teaching KW - Education Y1 - 2019 ER - TY - BOOK A1 - Petschnigg, Ursula A1 - Simeonov, Emil A1 - Mairinger, Daniela A1 - Schmid, Christian T1 - Portfolio für den Mathematikunterricht an Bildungsanstalten für Kindergartenpädagogik KW - Mathematics Y1 - ER - TY - GEN A1 - Simeonov, Emil T1 - Structure, Semiosis and Time - Anticipation and Surprise Recognition of Structure and Gestalt – exemplified by similarities between music and mathematics KW - Mathematics Y1 - ER - TY - BOOK A1 - Simeonov, Emil A1 - Mairinger, Daniela A1 - Schmid, Christian T1 - Mathematische Früherziehung - Formen KW - Mathematics Y1 - ER - TY - CHAP A1 - Pucher, Robert A1 - Schmöllebeck, Fritz A1 - Mense, Alexander T1 - Can undergraduate students be integrated into large research projects? T2 - Proceedings of the International conference PBL, Sao Paulo (Brasil) KW - Education KW - Research Project Y1 - 2019 ER - TY - CHAP A1 - Pucher, Robert A1 - Kleinrath, Paul A1 - Hofmann, Alexander A1 - Schmöllebeck, Fritz T1 - How Students Teach Robots to Think - The Example of the Vienna Cubes a Robot Soccer Team T2 - Proceedings of the 8th WSEAS International Conference on Automatic Control, Model & Simulation (ACMOS 2006) KW - Robotics KW - Project Based Learning KW - Soccer Y1 - 2019 SP - 17 EP - 21 ER - TY - GEN A1 - Pucher, Robert A1 - Kollmitzer, Christian A1 - Schmöllebeck, Fritz T1 - University of Applied Sciences - Technikum Wien, Austria: Should Computer Science Students Use Their Own Laptop Computers in Project Based Learning? KW - Project Based Learning KW - Computer Science KW - University KW - Learning Y1 - 2019 ER - TY - CHAP A1 - Brezowar, Gabriela A1 - Kollmitzer, Christian A1 - Pucher, Robert A1 - Schmöllebeck, Fritz T1 - Efficient Matrix Organisation Of A University T2 - International Technology, Education and Development Conference (INTED) / Brezowar, Pucher, Kollmitzer, Schmöllebeck / 2007 / Valencia (Spain) KW - Matrix Organisation Y1 - 2019 ER - TY - CHAP A1 - Schmöllebeck, Fritz A1 - Pucher, Robert T1 - Problem und Project Based Learning an der Fachhochschule Technikum Wien T2 - Problembasiertes Lernen. Konzepte, Werkzeuge und Fallbeispiele aus dem deutschsprachigen Raum KW - Problem Based Learning KW - Project Based Learning KW - University KW - Learning KW - Education Y1 - 2019 SP - 191 EP - 205 PB - h.e.p. verlag ag CY - Bern ER - TY - GEN A1 - Mandl, Thomas A1 - Dohnal, Fahdi A1 - Stickler, Yvonne A1 - Martinek, Johannes A1 - Reichel, Martin A1 - Mayr, Winfried A1 - Rattay, Frank T1 - FE-Modellierung für Implantate als Alternative zur transkutanen Elektrostimulation des langzeitdenervierten Oberschenkels KW - Implants KW - Denervation Y1 - 2019 ER - TY - CHAP A1 - Schmöllebeck, Fritz A1 - Kollmitzer, Christian A1 - Lehner, Martin A1 - Pucher, Robert T1 - The Way to Bologna with the Bachelor-Master System - New Challenges for Vocational Education in Austria T2 - Proceedings of JVET 2005 KW - University Degree KW - Education KW - Austria Y1 - 2019 ER - TY - CHAP A1 - Gollner, Helmut A1 - Pucher, Robert A1 - Schmöllebeck, Fritz A1 - Kollmitzer, Christian T1 - From Teaching to Learning - An Innovative Approach to Engineering Education T2 - Proceedings of the International Conference on System Identification and Control Problems (SICPRO 2006) KW - Teaching KW - Learning KW - Education KW - Engineering Y1 - 2019 ER - TY - GEN A1 - Schmöllebeck, Fritz A1 - Kollmitzer, Christian A1 - Pucher, Robert A1 - Brezowar, Gabriela T1 - EFFICIENT MATRIX ORGANISATION OF A UNIVERSITY KW - Matrix Organisation Y1 - 2019 ER - TY - JOUR A1 - Kuba, Markus A1 - Panholzer, Alois T1 - On bucket increasing trees, clustered increasing trees and increasing diamonds JF - Combinatorics, Probability and Computing N2 - In this work we analyse bucket increasing tree families. We introduce two simple stochastic growth processes, generating random bucket increasing trees of size n, complementing the earlier result of Mahmoud and Smythe (1995, Theoret. Comput. Sci.144 221–249.) for bucket recursive trees. On the combinatorial side, we define multilabelled generalisations of the tree families d-ary increasing trees and generalised plane-oriented recursive trees. Additionally, we introduce a clustering process for ordinary increasing trees and relate it to bucket increasing trees. We discuss in detail the bucket size two and present a bijection between such bucket increasing tree families and certain families of graphs called increasing diamonds, providing an explanation for phenomena observed by Bodini et al. (2016, Lect. Notes Comput. Sci.9644 207–219.). Concerning structural properties of bucket increasing trees, we analyse the tree parameter Kn . It counts the initial bucket size of the node containing label n in a tree of size n and is closely related to the distribution of node types. Additionally, we analyse the parameters descendants of label j and degree of the bucket containing label j, providing distributional decompositions, complementing and extending earlier results (Kuba and Panholzer (2010), Theoret. Comput. Sci.411(34–36) 3255–3273.). KW - bucket-increasing-trees KW - clustered-trees KW - stochastic-growth-processes KW - descendants KW - nodedegrees Y1 - 2021 IS - Volume 31 , Issue 4 SP - 629 EP - 661 ER - TY - JOUR A1 - Huber, Albert T1 - Remark on the quasilocal calculation of tidal heating: Energy transfer through the quasilocal surface JF - American Physical Society - Physical Review D N2 - In this paper, using the quasilocal formalism of Brown and York, the flow of energy through a closed surface containing a gravitating physical system is calculated in a way that augments earlier results on the subject by Booth and Creighton. To this end, by performing a variation of the total gravitational Hamiltonian (bulk plus boundary part), it is shown that associated tidal heating and deformation effects generally are larger than expected. This is because the aforementioned variation leads to previously unrecognized correction terms, including a bulk-to-boundary inflow term that does not appear in the original calculation of the time derivative of the Brown-York energy and leads to corrective extensions of Einstein’s quadrupole formula in the large sphere limit. KW - gravitation KW - cosmology KW - fields Y1 - VL - 105 IS - 2 ER - TY - CHAP A1 - Leonhartsberger, Kurt A1 - Premm, C. A1 - Schidler, Susanne A1 - Werner, Andrea A1 - Moisl, F. T1 - Analyse der Wirtschaftlichkeit eines dezentral organisierten PV-Heimspeichernetzwerks für netz- und systemdienliche Anwendungen T2 - Tagungsband PV-Symposium 2018 KW - Photovoltaics KW - Renewable Energy KW - Energy Storage Y1 - ER - TY - GEN A1 - Gollner, Helmut A1 - Pucher, Robert A1 - Schmöllebeck, Fritz A1 - Kollmitzer, Christian T1 - From Teaching to Learning - An Innovative Approach to Engineering Education KW - Teaching KW - Learning KW - Engineering KW - Education Y1 - 2019 ER - TY - GEN A1 - Kornfeind, P. A1 - Blaha, A. A1 - Peuschl, M. A1 - Reichel, Martin A1 - Sabo, Anton T1 - 2-Komponentenplattform zur Erfassung der Stemmbrettkräfte am Ruderergometer und im Ruderboot KW - Sport KW - Rowing Y1 - 2019 ER - TY - JOUR A1 - Mairhofer, Lukas A1 - Passon, Oliver T1 - Reconsidering the Relation Between “Matter Wave Interference” and “Wave–Particle Duality” JF - Foundations of Physics N2 - Interference of more and more massive objects provides a spectacular confirmation of quantum theory. It is usually regarded as support for “wave–particle duality” and in an extension of this duality even as support for “complementarity”. We first give an outline of the historical development of these notions. Already here it becomes evident that they are hard to define rigorously, i.e. have mainly a heuristic function. Then we discuss recent interference experiments of large and complex molecules which seem to support this heuristic function of “duality”. However, we show that in these experiments the diffraction of a delocalized center-of-mass wave function depends on the interaction of the localized structure of the molecule with the diffraction element. Thus, the molecules display “dual features” at the same time, which contradicts the usual understanding of wave–particle duality. We conclude that the notion of “wave–particle duality” deserves no place in modern quantum physics. KW - Quantenmechanik KW - Welle-Teilchen-Dualismus KW - Interferenz Y1 - IS - 52/32 PB - Springer ER - TY - JOUR A1 - Huber, Albert T1 - The gravitational field of a massless particle on the horizon of a stationary black hole JF - Classical and Quantum Gravity N2 - In this work, the field of a gravitational shockwave generated by a massless point-like particle is calculated at the event horizon of a stationary Kerr–Newman black hole. Using the geometric framework of generalized Kerr–Schild deformations in combination with the spin-coefficient formalism of Newman and Penrose, it is shown that the field equations of the theory, at the event horizon of the black hole, can be reduced to a single linear ordinary differential equation for the so-called profile function of the geometry. This differential relation is solved exactly. Based on the results obtained, a physical interpretation is given for the found shockwave spacetime, and it is clarified how these results lead back to those of previous works on the subject, which deal with the much simpler cases of gravitational shockwaves in static black hole backgrounds. KW - Gravitation Y1 - ER - TY - JOUR A1 - Kuba, Markus T1 - On multisets, interpolated multiple zeta values and limit laws. JF - Electronic Journal of Combinatorics N2 - In this work we discuss a parameter σ on weighted k-element multisets of [n]={1,…,n}. The sums of weighted k-multisets are related to k-subsets, k-multisets, as well as special instances of truncated interpolated multiple zeta values. We study properties of this parameter using symbolic combinatorics. We rederive and extend certain identities for ζtn({m}k). Moreover, we introduce random variables on the k-element multisets and derive their distributions, as well as limit laws for k or n tending to infinity. KW - k-multisets KW - k-subsets KW - truncated-multiple-zeta-values KW - interpolated-multiple-zeta-values KW - harmonic-numbers Y1 - IS - Vol. 29, Issue 1 ER - TY - GEN A1 - Mairhofer, Lukas A1 - Maiwöger, Mira T1 - Entanglement: From Philosophy to Quantum Information - and back Experiments on Bell-inequalties - threat to the Theory of Relativity? KW - Quantenphysik KW - Bell-Ungleichungen KW - Verschränkung Y1 - ER - TY - JOUR A1 - Hoffmann, Michael E. A1 - Kuba, Markus T1 - Logarithmic integrals, zeta values, and tiered binomial coeffcients JF - Monatshefte fuer Mathematik KW - Integrals KW - Binomial KW - Coefficient Y1 - ER - TY - GEN A1 - Mairhofer, Lukas T1 - From foundational research to application - Training Quantum Engineers KW - Didaktik KW - Quantentechnologien KW - Quantencomputer KW - Quantenkryptographie Y1 - ER - TY - GEN A1 - Mairhofer, Lukas T1 - Dying Experiments KW - Experimentalsysteme KW - Quantenphysik KW - Science and Technology Y1 - ER - TY - JOUR A1 - Belkacem, Kévin A1 - Kupka, Friedrich A1 - Philidet, Jordan A1 - Samadi, Réza T1 - Surface effects and turbulent pressure. Assessing the Gas-Γ1 and Reduced-Γ1 empirical models. JF - Astronomy & Astrophysics KW - Surface KW - Pressure Y1 - ER - TY - JOUR A1 - Kialka, Filip A1 - Stickler, Benjamin A1 - Hornberger, Klaus A1 - Fein, Yaakov A1 - Geyer, Philipp A1 - Mairhofer, Lukas A1 - Gerlich, Stefan A1 - Arndt, Markus T1 - Concepts for long-baseline, high-mass matter-wave interferometry JF - Physica Scripta N2 - Designing experiments which delocalize ever more complex and more massive particles requires a quantitative assessment of new interferometer configurations. Here, we introduce a figure of merit which quantifies the difference between a genuine quantum interference pattern and a classical shadow and use it to compare a number of near-field interferometer schemes. This allows us to identify the most promising setups for future tests of the quantum superposition principle, and to discuss the perspectives of interferometry with complex molecules and clusters. KW - Matter wave optics KW - Quantum optics in phase space KW - Meteorology Y1 - IS - 94, 2019 ER -