TY - CHAP A1 - Salzbrunn, Benedikt A1 - Kipke, Christine A1 - Busch, Marc A1 - Schiava, Marco della T1 - rapid UX-score: Modulare und Adaptive Messung von User Experience T2 - Mensch und Computer 2020 KW - UX Messung KW - Modulare UX Messung KW - Adaptive UX Messung KW - Rasch-Modell Y1 - 2020 SP - 6 EP - 9 CY - Magdeburg ER - TY - CHAP A1 - Salzbrunn, Benedikt A1 - Busch, Marc A1 - della Schiava, Marco A1 - Kipke, Christine T1 - rapid UX-score: Modulare und Adaptive Messung von User Experience T2 - Mensch und Computer 2020 - Workshopband KW - UX Messung KW - Modulare UX Messung KW - Adaptive UX Messung KW - Rasch-Modell Y1 - ER - TY - CHAP A1 - Mally, Franziska A1 - Hofstätter, Otto A1 - Eckelt, Markus T1 - Influence of Running Shoes and Running Velocity on “Ride” during Running. T2 - ISEA 2020 Online - Proceedings 2020 KW - Sports Equipment Technologies KW - Running Shoes KW - Footwear Y1 - 2020 ER - TY - JOUR A1 - Huber, Albert T1 - Junction Conditions and local Spacetimes in General Relativity JF - The European Physical Journal C N2 - In the present work, a theoretical framework focussing on local geometric deformations is introduced in order to cope with the problem of how to join spacetimes with different geometries and physical properties. This framework is used to show that two Lorentzian manifolds can be matched by considering local deformations of the associated spacetime metrics. Based on the fact that metrics can be suitably matched in this way, it is shown that the underlying geometric approach allows the characterization of local spacetimes in general relativity. Furthermore, it is shown that said approach not only extends the conventional thin shell formalism, but also allows the treatment of geometric problems that cannot be treated with standard gluing techniques. KW - Relativity Y1 - ER - TY - JOUR A1 - Schätti, Jonas A1 - Köhler, Valentin A1 - Mayor, Marcel A1 - Fein, Yaakov A1 - Geyer, Philipp A1 - Mairhofer, Lukas A1 - Gerlich, Stefan A1 - Arndt, Markus T1 - Matter-wave interference and deflection of tripeptides decorated with fluorinated alkyl chains JF - Journal of Mass Spectrometry KW - interference KW - quantum KW - meteorology Y1 - IS - Vol 55, issue 6 ER - TY - JOUR A1 - Fein, Yaakov A1 - Shayeghi, Armin A1 - Mairhofer, Lukas A1 - Kialka, Filip A1 - Rieser, Philipp A1 - Geyer, Philipp A1 - Gerlich, Stefan A1 - Arndt, Markus T1 - Quantum-Assisted Measurement of Atomic Diamagnetism JF - Physical Review KW - diamagnetism KW - quantum KW - meteorology Y1 - IS - Volume 10, Issue 1 ER - TY - JOUR A1 - Hoffman, Michael E. A1 - Kuba, Markus A1 - Levy, Moti A1 - Louchard, Guy T1 - An Asymptotic Series for an Integral JF - Ramanujan Journal KW - asymtotic KW - integral Y1 - 2020 ER - TY - JOUR A1 - Hoffmann, Michael E. A1 - Kuba, Markus A1 - Levy, Moti A1 - Louchard, Guy T1 - An Asymptotic Series for an Integral JF - Ramanujan Journal KW - Asymptotic KW - Integral Y1 - ER - TY - JOUR A1 - Schanda, Jakob A1 - Keibl, Claudia A1 - Heimel, Patrick A1 - Monforte, Xavier A1 - Feichtinger, Xaver A1 - Teuschl, Andreas A1 - Baierl, Andreas A1 - Muschitz, Christian A1 - Redl, Heinz A1 - Fialka, Christian A1 - Mittermayr, Rainer T1 - Zoledronic Acid Substantially Improves Bone Microarchitecture and Biomechanical Properties After Rotator Cuff Repair in a Rodent Chronic Defect Model JF - Am J Sports Med N2 - Background: Bone mineral density at the humeral head is reduced in patients with chronic rotator cuff tears. Bone loss in the humeral head is associated with repair failure after rotator cuff reconstruction. Bisphosphonates (eg, zoledronic acid) increase bone mineral density. Hypothesis: Zoledronic acid improves bone mineral density of the humeral head and biomechanical properties of the enthesis after reconstruction of chronic rotator cuff tears in rats. Study design: Controlled laboratory study. Methods: A total of 32 male Sprague-Dawley rats underwent unilateral (left) supraspinatus tenotomy with delayed transosseous rotator cuff reconstruction after 3 weeks. All rats were sacrificed 8 weeks after rotator cuff repair. Animals were randomly assigned to 1 of 2 groups. At 1 day after rotator cuff reconstruction, the intervention group was treated with a single subcutaneous dose of zoledronic acid at 100 µg/kg bodyweight, and the control group received 1 mL of subcutaneous saline solution. In 12 animals of each group, micro-computed tomography scans of both shoulders were performed as well as biomechanical testing of the supraspinatus enthesis of both sides. In 4 animals of each group, histological analyses were conducted. Results: In the intervention group, bone volume fraction (bone volume/total volume [BV/TV]) of the operated side was higher at the lateral humeral head (P = .005) and the medial humeral head (P = .010) compared with the control group. Trabecular number on the operated side was higher at the lateral humeral head (P = .004) and the medial humeral head (P = .001) in the intervention group. Maximum load to failure rates on the operated side were higher in the intervention group (P < .001). Cortical thickness positively correlated with higher maximum load to failure rates in the intervention group (r = 0.69; P = .026). Histological assessment revealed increased bone formation in the intervention group. Conclusion: Single-dose therapy of zoledronic acid provided an improvement of bone microarchitecture at the humeral head as well as an increase of maximum load to failure rates after transosseous reconstruction of chronic rotator cuff lesions in rats. Clinical relevance: Zoledronic acid improves bone microarchitecture as well as biomechanical properties after reconstruction of chronic rotator cuff tears in rodents. These results need to be verified in clinical investigations. KW - Tissue Engineering KW - Rotator Cuff Tears Y1 - VL - 2020 Jul IS - 48 (9) SP - 2151 EP - 2160 ER - TY - JOUR A1 - Bachmann, Barbara A1 - Spitz, Sarah A1 - Schädl, Barbara A1 - Teuschl, Andreas A1 - Redl, Heinz A1 - Nürnberger, Sylvia A1 - Ertl, Peter T1 - Stiffness Matters: Fine-Tuned Hydrogel Elasticity Alters Chondrogenic Redifferentiation JF - Froniers in Bioengineering and Biotechnology N2 - Biomechanical cues such as shear stress, stretching, compression, and matrix elasticity are vital in the establishment of next generation physiological in vitro tissue models. Matrix elasticity, for instance, is known to guide stem cell differentiation, influence healing processes and modulate extracellular matrix (ECM) deposition needed for tissue development and maintenance. To better understand the biomechanical effect of matrix elasticity on the formation of articular cartilage analogs in vitro, this study aims at assessing the redifferentiation capacity of primary human chondrocytes in three different hydrogel matrices of predefined matrix elasticities. The hydrogel elasticities were chosen to represent a broad spectrum of tissue stiffness ranging from very soft tissues with a Young's modulus of 1 kPa up to elasticities of 30 kPa, representative of the perichondral-space. In addition, the interplay of matrix elasticity and transforming growth factor beta-3 (TGF-β3) on the redifferentiation of primary human articular chondrocytes was studied by analyzing both qualitative (viability, morphology, histology) and quantitative (RT-qPCR, sGAG, DNA) parameters, crucial to the chondrotypic phenotype. Results show that fibrin hydrogels of 30 kPa Young's modulus best guide chondrocyte redifferentiation resulting in a native-like morphology as well as induces the synthesis of physiologic ECM constituents such as glycosaminoglycans (sGAG) and collagen type II. This comprehensive study sheds light onto the mechanobiological impact of matrix elasticity on formation and maintenance of articular cartilage and thus represents a major step toward meeting the need for advanced in vitro tissue models to study both re- and degeneration of articular cartilage. KW - Tissue Engineering KW - Chondrogenic Redifferentiation KW - Biomaterials Y1 - 2021 VL - 2020 IS - 8 SP - 373 ER - TY - CHAP A1 - Mally, Franziska T1 - In-Shoe Plantar Pressure Measurement—Influence of Insole Placement on Selected Parameters during Running. T2 - ISEA 2020 Online - Proceedings 2020, 49(1) KW - Sports Equipment Technologies KW - Running Shoes KW - Motion Analysis Y1 - 2020 SP - 50 EP - 50 ER - TY - CHAP A1 - Wießner, Katharina A1 - Praher, Daniela A1 - Liousia, Varvara A1 - Gepp, Barbara A1 - Leitner, Rita A1 - Rünzler, Dominik T1 - Testing the acute toxicity of an alternative to Glyphosate - Pelargonic acid T2 - SETAC Europe 30th Annual Meeting - Online N2 - Glyphosate-based herbicides were used as plant protection product globally for several decades. However, glyphosate is discussed as showing genotoxicity and many other side-effects such as inhibiting the mitochondrial succinate dehydrogenase, leading to a decreased ATP production. Therefore, finding alternative active substances is necessary. Pelargonic acid (nonanoic acid) and its ammonium salt (saponified form), which are used as alternatives to glyphosate-based herbicides, are biological derived substances considered as environmentally friendly herbicides. To test the effects of pelargonic acid in its acidic form (active substance in TopGun) and its saponified form (in Finalsan Plus) on the aquatic ecosystem, students of the master study program “environmental management and ecotoxicology” compared the toxicity levels of these substances using zebrafish embryos within the scope of a student research course. The project was developed by applying the 7-step problem-based learning method which allowed the students to design their experiments independently with the guidance and feedback of the lecturers. Acute toxicity was determined according to OECD test guideline 236 in D. rerio which revealed a LC50 of 1.55 mg/L of pelargonic acid, a LC50 value of 0.93 mg/L pelargonic acid in TopGun and a LC50 of 36.37 mg/L of Finalsan Plus. Neutral Red Uptake assays were performed on the rainbow trout-derived gill cell-line RTgill-W1 to determine the acute toxicity according to the OECD test guideline 129 which revealed the IC50 value of 12.4 mg/L pelargonic acid in TG. Due to solubility limits, no reliable IC50 could be obtained. The results of the tests indicate differences in the acute toxicity of the pelargonic acid-based formulations TopGun and Finalsan Plus. However, more investigations have to be done in order to analyse if the acidic form is more toxic than the saponified form. Furthermore, detailed ecotoxicological risk assessments and an evaluation of the genotoxicity of both herbicides has to be performed before any conclusion can be drawn. Financial support from the City of Vienna project PBL in Molecular Life Science (21-06) is gratefully acknowledged. KW - Environmental Chemistry KW - Ecotoxicology Y1 - 2020 ER - TY - JOUR A1 - Ziadlou, Reihane A1 - Rotman, Stijn A1 - Teuschl, Andreas A1 - Salzer, Elias A1 - Barbero, Andrea A1 - Martin, Ivan A1 - Alini, Mauro A1 - Eglin, David A1 - Grad, Sibylle T1 - Optimization of hyaluronic acid-tyramine/silk-fibroin composite hydrogels for cartilage tissue engineering and delivery of anti-inflammatory and anabolic drugs JF - Materials Science and Engineering: C N2 - Injury of articular cartilage leads to an imbalance in tissue homeostasis, and due to the poor self-healing capacity of cartilage the affected tissue often exhibits osteoarthritic changes. In recent years, injectable and highly tunable composite hydrogels for cartilage tissue engineering and drug delivery have been introduced as a desirable alternative to invasive treatments. In this study, we aimed to formulate injectable hydrogels for drug delivery and cartilage tissue engineering by combining different concentrations of hyaluronic acid-tyramine (HA-Tyr) with regenerated silk-fibroin (SF) solutions. Upon enzymatic crosslinking, the gelation and mechanical properties were characterized over time. To evaluate the effect of the hydrogel compositions and properties on extracellular matrix (ECM) deposition, bovine chondrocytes were embedded in enzymatically crosslinked HA-Tyr/SF composites (in further work abbreviated as HA/SF) or HA-Tyr hydrogels. We demonstrated that all hydrogel formulations were cytocompatible and could promote the expression of cartilage matrix proteins allowing chondrocytes to produce ECM, while the most prominent chondrogenic effects were observed in hydrogels with HA20/SF80 polymeric ratios. Unconfined mechanical testing showed that the compressive modulus for HA20/SF80 chondrocyte-laden constructs was increased almost 10-fold over 28 days of culture in chondrogenic medium which confirmed the superior production of ECM in this hydrogel compared to other hydrogels in this study. Furthermore, in hydrogels loaded with anabolic and anti-inflammatory drugs, HA20/SF80 hydrogel showed the longest and the most sustained release profile over time which is desirable for the long treatment duration typically necessary for osteoarthritic joints. In conclusion, HA20/SF80 hydrogel was successfully established as a suitable injectable biomaterial for cartilage tissue engineering and drug delivery applications. KW - Tissue Engineering KW - Cartilage KW - Mechanical Testing KW - Biomaterials KW - Chondrocytes Y1 - VL - 120 IS - 111701 ER - TY - JOUR A1 - Frohner, Matthias A1 - Mense, Alexander A1 - Krondraf, Nikolaus A1 - Sabutsch, Stefan T1 - Implementierungsleitfaden HL7 Implementation Guide for CDA® R2: Implementierungsleitfaden Meldung an das Epidemiologische Meldesystem (EMS) – Labor-und Arztmeldung, ELGA GmbH JF - ELGA CDA Implementierungsleitfäden HL7 KW - eHealth KW - ELGA Y1 - VL - 2020 ER - TY - JOUR A1 - Frohner, Matthias A1 - Sabutsch, Stefan A1 - Krondraf, Nikolaus T1 - ELGA CDA Implementierungsleitfäden HL7 Implementation Guide for CDA® R2: Ambulanzbefund, ELGA GmbH JF - ELGA CDA Implementierungsleitfäden HL7 KW - eHealth KW - ELGA Y1 - VL - 2020 ER - TY - CHAP A1 - Eckelt, Markus A1 - Mally, Franziska T1 - Running Shoes—Possible Correlations of Biomechanical and Material Tests. T2 - ISEA 2020 Online - Proceedings 2020, 49(1) KW - Sports Equipment Technologies KW - Running Shoes Y1 - 2020 SP - 25 EP - 25 ER - TY - CHAP A1 - Eckelt, Markus A1 - Mally, Franziska T1 - Use of Acceleration Sensors in Archery T2 - ISEA 2020 Online - Proceedings 2020, 49(1) KW - Sports Equipment Technologies KW - Acceleration Sensors KW - Archery Y1 - 2020 SP - 98 EP - 98 ER - TY - JOUR A1 - Rössler, Peter A1 - Höller, Roland T1 - Programmable Logic Devices – Key Components for Today's and Tomorrow's Electronic-Based Systems JF - e&i (Elektrotechnik und Informationstechnik), Volume 137, Issue 1, 2020 KW - Programmable Logic Devices KW - Field-Programmable Gate Arrays KW - PLD KW - FPGA Y1 - 2020 VL - Vol. 137, 2020 IS - Issue 1, 2020 ER - TY - JOUR A1 - Otrebski, Richard A1 - Rauer, Johannes A1 - Engelhardt-Nowitzki, Corinna A1 - Kryvinska, Natalia A1 - Aburaia, Mohamed A1 - Pospisil, Dominik T1 - Flexibility Enhancements in Digital Manufacturing by means of Ontological Data Modeling JF - International Journal of Ubiquitous Systems and Pervasive Networks (JUSPN) KW - Communication Modeling KW - Data Modeling KW - Digital Manufacturing Y1 - 2020 IS - Volume 12, Issue 2 ER - TY - JOUR A1 - Hu, Qingxi A1 - Feng, Di A1 - Zhang, Haiguang A1 - Yao, Yuan A1 - Aburaia, Mohamed A1 - Lammer, Herfried T1 - Oriented to Multi-Branched Structure Unsupported 3D Printing Method Research JF - Materials, vol. 13, no. 9, p. 2023, Apr. 2020 KW - Structure KW - 3D KW - Printing Y1 - 2020 ER - TY - JOUR A1 - Engelhardt-Nowitzki, Corinna A1 - Aburaia, Mohamed A1 - Rauer, Johannes T1 - Research-based teaching in digital manufacturing and robotics - the Digital Factory at the UAS Technikum Wien as an exemplary case JF - CLF2020 TU Graz KW - Digital Manufacturing KW - Robotics Y1 - 2020 ER - TY - JOUR A1 - Mandl, Thomas A1 - Östlin, Christofer A1 - Dawod, Ibrahim E. A1 - Brodmerkel, Maxim N. A1 - Marklund, Erik G. A1 - Martin, Andrew V. A1 - Timneanu, Nicusor A1 - Caleman, Carl T1 - Structural Heterogeneity in Single Particle Imaging Using X-ray Lasers JF - The Journal of Physical Chemistry Letters N2 - One of the challenges facing single particle imaging with ultrafast X-ray pulses is the structural heterogeneity of the sample to be imaged. For the method to succeed with weakly scattering samples, the diffracted images from a large number of individual proteins need to be averaged. The more the individual proteins differ in structure, the lower the achievable resolution in the final reconstructed image. We use molecular dynamics to simulate two globular proteins in vacuum, fully desolvated as well as with two different solvation layers, at various temperatures. We calculate the diffraction patterns based on the simulations and evaluate the noise in the averaged patterns arising from the structural differences and the surrounding water. Our simulations show that the presence of a minimal water coverage with an average 3 Å thickness will stabilize the protein, reducing the noise associated with structural heterogeneity, whereas additional water will generate more background noise. KW - Protein structure KW - Physical and chemical processes KW - Peptides and proteins KW - Physical and chemical properties KW - Layers Y1 - 2020 VL - 2020 IS - Volume 11, Issue 15 SP - 6077 EP - 6083 ER - TY - JOUR A1 - Mandl, Thomas A1 - Sinelnikova, Anna A1 - Östlin, Christofer A1 - Grånäs, Oscar A1 - Brodmerkel, Maxim N. A1 - Markl, Erik G. A1 - Caleman, Carl T1 - Reproducibility in the unfolding process of protein induced by an external electric field JF - Chemical Science N2 - The dynamics of proteins are crucial for their function. However, commonly used techniques for studying protein structures are limited in monitoring time-resolved dynamics at high resolution. Combining electric fields with existing techniques to study gas-phase proteins, such as single particle imaging using free-electron lasers and gas-phase small angle X-ray scattering, has the potential to open up a new era in time-resolved studies of gas-phase protein dynamics. Using molecular dynamics simulations, we identify well-defined unfolding pathways of a protein, induced by experimentally achievable external electric fields. Our simulations show that strong electric fields in conjunction with short-pulsed X-ray sources such as free-electron lasers can be a new path for imaging dynamics of gas-phase proteins at high spatial and temporal resolution. KW - Reproducibility protein Y1 - ER - TY - CHAP A1 - Dolezal, Dominik T1 - Educational Design Patterns for Student-Centered 21st Century Learning in Technology-Enhanced Learning Environments T2 - Educating Engineers for Future Industrial Revolutions: Proceedings of the 23rd International Conference on Interactive Collaborative Learning (ICL2020) KW - 21st century skills KW - student-centered learning KW - educational design patterns Y1 - ER - TY - CHAP A1 - Pohn, Birgit A1 - Kargl, Michaela A1 - Reihs, Robert A1 - Holzinger, Andreas A1 - Zatloukal, Kurt T1 - Towards a Deeper Understanding of How a Pathologist Makes a Diagnosis: Visualization of the Diagnostic Process in Histopathology T2 - Sammelband: 2019 IEEE Symposium on Computers and Communications (ISCC) Konferenztitel: 4th edition of the IEEE workshop on ICT Solutions for eHealth in conjunction with the 24th IEEE Symposium on Computers and Communications KW - microscopic pathology KW - diagnostic process KW - diagnostic path KW - diagnostic phases KW - visualization concept Y1 - 2020 ER - TY - CHAP A1 - Dolezal, Dominik T1 - The Learning Office Approach to Modern 21st Century Education: Third Evaluation of a Self-Driven Concept for Student-Centered Engineering Education T2 - IEEE 50th Annual Frontiers in Education Conference KW - learning office KW - 21st century skills KW - student-centered learning KW - computer science education KW - person-centered approach Y1 - ER - TY - BOOK A1 - Lehner, Martin T1 - Viel Stoff – wenig Zeit KW - Vollständigkeitsfalle KW - Zeit Y1 - 2020 PB - Haupt CY - Bern, Stuttgart, Wien ER - TY - BOOK A1 - Lehner, Martin T1 - Didaktische Reduktion KW - Didaktik Y1 - 2020 PB - Haupt CY - Bern, Stuttgart, Wien ER - TY - JOUR A1 - Salmen, Christine T1 - With humility and courage: Educational scholarship as intellectual endeavor JF - International Journal for the Historiography of Education KW - Educational scholarship Y1 - VL - 10 IS - 1 SP - 97 EP - 99 ER - TY - JOUR A1 - Wala, Thomas A1 - Felleitner-Goll, Katharina T1 - Unternehmensleitbild JF - WISU KW - Unternehmen Y1 - 2020 IS - 7 SP - 745 ff ER - TY - BOOK A1 - Lehner, Martin T1 - Viel Stoff – wenig Zeit, Wege aus der Vollständigkeitsfalle KW - Zeit Y1 - 2020 PB - Haupt CY - Bern, Stuttgart, Wien ER - TY - BOOK A1 - Wala, Thomas T1 - Innovations- und Technologiemanagement KW - Innovationsmanagement Y1 - 2020 SN - 9798681627715 PB - Amazon ER - TY - JOUR A1 - Wala, Thomas T1 - Die betriebswirtschaftliche Klausur: Innovationsmanagement JF - WISU KW - Innovationsmanagement Y1 - 2020 IS - 2 SP - 195 ff ER - TY - JOUR A1 - Wala, Thomas T1 - Die betriebswirtschaftliche Klausur: Controlling JF - WISU KW - Controlling Y1 - 2020 IS - 5 ER - TY - JOUR A1 - Christine, Salmen T1 - Do No Harm: A commentary on the outrage over a teacher evaluation app JF - Voices KW - evaluation app Y1 - IS - 274 SP - 14 EP - 16 ER - TY - CHAP A1 - Litzenberger, Stefan T1 - A Study of Skin-Close Heat and Moisture with Different Types of Backpacks in Cycling. T2 - ISEA 2020 Online - Proceedings 2020, 49(1) KW - Sports Equipment Technologies KW - Cycling Y1 - 2020 SP - 86 EP - 86 ER - TY - GEN A1 - Rohatsch, Lukas T1 - Open Data Workshop KW - Open Data KW - Open Government Data Y1 - 2020 ER - TY - JOUR A1 - Sauermann, Stefan ED - RDA-COVID19-Epidemiology WG., Research Data Alliance T1 - Preservation of Individuals’ Privacy in Shared COVID-19 Related Data JF - COVID-19 Data sharing in epidemiology, version 0.054. N2 - This paper provides insight into how restricted data can be incorporated in an open-be-default-by-design digital infrastructure for scientific data. We focus, in particular, on the ethical component of FAIRER (Findable, Accessible, Interoperable, Ethical, and Reproducible) data, and the pseudo-anonymization and anonymization of COVID-19 datasets to protect personally identifiable information (PII). First we consider the need for the customisation of the existing privacy preservation techniques in the context of rapid production, integration, sharing and analysis of COVID-19 data. Second, the methods for the pseudo-anonymization of direct identification variables are discussed. We also discuss different pseudo-IDs of the same person for multi-domain and multi-organization. Essentially, pseudo-anonymization and its encrypted domain specific IDs are used to successfully match data later, if required and permitted, as well as to restore the true ID (and authenticity) in individual cases of a patient's clarification.Third, we discuss application of statistical disclosure control (SDC) techniques to COVID-19 disease data. To assess and limit the risk of re-identification of individual persons in COVID-19 datasets (that are often enriched with other covariates like age, gender, nationality, etc.) to acceptable levels, the risk of successful re-identification by a combination of attribute values must be assessed and controlled. This is done using statistical disclosure control for anonymization of data. Lastly, we discuss the limitations of the proposed techniques and provide general guidelines on using disclosure risks to decide on appropriate modes for data sharing to preserve the privacy of the individuals in the datasets. KW - COVID19 KW - pseudo-anonymization KW - statistical disclosure control KW - data sharing KW - privacy Y1 - 2020 ER - TY - CHAP A1 - Steigl, D A1 - Aburaia, Mohamed A1 - Wöber, Wilfried T1 - Autonomous Grasping of Known Objects Using Depth Data and the PCA T2 - Austrian Robotics Workshop 2020 KW - Robotic KW - Autonomous KW - Grasping Y1 - 2020 ER - TY - JOUR A1 - Markl, Erich A1 - Lackner, Maximilian T1 - Devulcanization Technologies for Recycling of Tire-Derived Rubber: A Review JF - Materials N2 - In general, composite materials are difficult to recycle. Tires belong to this class of materials. On top, one of their main constitutents, vulcanized rubber, is as elastomer, which cannot be remolten and hence is particularly challenging to put to a new use. Today, the main end-of-life routes of tires and other rubber products are landfilling, incineration in e.g., cement plants, and grinding to a fine powder, generating huge quantities and indicating a lack of sustainable recycling of this valuable material. True feedstock recycling is not feasible for complex mixtures such as tires, but devulcanization can be done to reactivate the cross-linked polymer for material recycling in novel rubber products. Devulcanization, i.e., the breaking up of sulfur bonds by chemical, thermophysical, or biological means, is a promising route that has been investigated for more than 50 years. This review article presents an update on the state-of-the art in rubber devulcanization. The article addresses established devulcanization technologies and novel processes described in the scientific and patent literatures. On the one hand, tires have become high-tech products, where the simultaneous improvement of wet traction, rolling resistance, and abrasion resistance (the so-called “magic triangle”) is hard to achieve. On the other hand, recycling and sustainable end-of-life uses are becoming more and more important. It is expected that the public discussion of environmental impacts of thermoplastics will soon spill over to thermosets and elastomers. Therefore, the industry needs to develop and market solutions proactively. Every year, approximately 40 million tons of tires are discarded. Through the devulcanization of end-of-life tires (ELT), it is possible to produce new raw materials with good mechanical properties and a superior environmental footprint over virgin products. The devulcanization process has become an interesting technology that is able to support the circular economy concept. KW - rubber devulcanization KW - sustainability KW - recycling Y1 - U6 - http://dx.doi.org/10.3390/ma13051246 VL - 13 IS - 5 ER - TY - JOUR A1 - Wöber, Wilfried A1 - Rauer, Johannes A1 - Papa, Maximilian A1 - Aburaia, Ali A1 - Schwaiger, Simon A1 - Novotny, Georg A1 - Aburaia, Mohamed A1 - Kubinger, Wilfried T1 - Evaluierung von Navigationsmethoden für mobile Roboter JF - e & i Elektrotechnik und Informationstechnik KW - Robotics KW - Machine Learning KW - Industry 4.0 Y1 - 2020 ER - TY - CHAP A1 - Kriegler, Andreas A1 - Wöber, Wilfried A1 - Aburaia, Mohamed T1 - Artificial Neural Networks Based Place Categorization T2 - Digital Conversion on the Way to Industry 4.0 KW - Artificial Intelligence Y1 - SP - 201 EP - 209 PB - Springer Verlag ER - TY - GEN A1 - Lackner, Maximilian T1 - PHA - Biopolymere mit Potential KW - Bioplastics KW - Biopolymers Y1 - 2020 ER - TY - JOUR A1 - Engelhardt-Nowitzki, Corinna A1 - Aburaia, Mohamed A1 - Otrebski, Richard A1 - Rauer, Johannes A1 - Orsolits, Horst T1 - Research-based teaching in Digital Manufacturing and Robotics – the Digital Factory at the UAS Technikum Wien as a Case Example JF - Procedia Manufacturing KW - Digital Factory KW - Virtual Reality KW - Robotics KW - Machine Learning Y1 - 2020 IS - Volume 45 SP - 164 EP - 170 ER - TY - JOUR A1 - Aburaia, Mohamed A1 - Bucher, Christoph A1 - Lackner, Maximilian A1 - Gonzalez-Gutierrez, Joamin A1 - Zhang, Haiguang A1 - Lammer, Herfried T1 - A Production Method for Standardized Continuous Fiber Reinforced FFF Filament JF - Biomaterials and Medical Applications KW - Filament KW - Production Y1 - 2020 ER - TY - CHAP A1 - Felber, Stefan Otto A1 - Aburaia, Mohamed A1 - Wöber, Wilfried A1 - Lackner, Maximilian T1 - Parameter Optimization for the 3D Print of Thermo-Plastic Pellets with an Industrial Robot T2 - Digital Conversion on the Way to Industry 4.0 KW - Thermo Plastics KW - Industrial Robot Y1 - SP - 236 EP - 247 ER - TY - JOUR A1 - Rauer, Johannes A1 - Aburaia, Mohamed A1 - Wöber, Wilfried T1 - Semi-Automatic Generation of Training Data for Neural Networks for 6D Pose Estimation and Robotic Graspin JF - Proceedings of Joint Austrian Computer Vision and Robotics Workshop 2020 KW - Robotics KW - Neural Networks Y1 - 2020 SP - 2 EP - 3 ER - TY - JOUR A1 - Aburaia, Mohamed A1 - Lackner, Maximilian A1 - Bucher, Michael A1 - Gonzalez-Gutierrez, Joamin A1 - Zhang, Haiguang A1 - Lammer, Herfried T1 - A Production Method for Standardized Continuous Fiber Reinforced FFF Filament JF - A Production Method for Standardized Continuous Fiber Reinforced FFF Filament,” vol. 4, no. 1, p. 12, 2020 KW - Production KW - Fiber KW - FFF KW - Filament Y1 - 2020 ER - TY - CHAP A1 - Werner, Jan A1 - Aburaia, Mohamed A1 - Raschendorfera, A A1 - Lackner, Maximilian T1 - MeshSlicer: A 3D-Printing software for printing 3D-models with a 6-axis industrial robot T2 - 14th CIRP, Gulf of Naples, Italy, 2020 KW - 3D KW - robot KW - Printing Y1 - 2020 ER - TY - CHAP A1 - Rauer, Johannes A1 - Aburaia, Mohamed A1 - Wöber, Wilfried T1 - Semi-Automatic Generation of Training Data for Neural Networks for 6D Pose Estimation and Robotic Grasping T2 - Austrian Robotics Workshop 2020 KW - Semi-Automatic KW - Neural Network KW - Robotic KW - Grasping KW - 6D Y1 - 2020 ER - TY - CHAP A1 - Aburaia, Mohamed A1 - Lackner, Maximilian T1 - Parameter Optimization for the 3D Print of Thermo-plastic Pellets with an Industrial Robot T2 - International Symposium for Production Research 2020, Turkey KW - 3D KW - Optimization KW - Print KW - Industrial KW - Robot Y1 - 2020 ER - TY - CHAP A1 - Kainrath, Martin A1 - Aburaia, Mohamed A1 - Lackner, Maximilian T1 - Accuracy Improvement and Process Flow Adaption for Robot Machining T2 - International Symposium for Production Research 2020, Turkey KW - Robot KW - Machining KW - Improvement Y1 - 2020 ER - TY - CHAP A1 - Kriegler, Andreas A1 - Wöber, Wilfried T1 - Vision-based Docking of a Mobile Robot T2 - Proceedings of the Joint Austrian Computer Vision and Robotics Workshop 2020 KW - Automation KW - Robotics Y1 - SP - 6 EP - 12 ER - TY - CHAP A1 - Orsolits, Horst T1 - Virtual Engineering Applied in a Digital Learning Factory T2 - Perspectives in Industry Digitalization and Advanced Manufacturing in the Black Sea Region KW - Virtual Engineering Y1 - 2021 ER - TY - CHAP A1 - Lackner, Maximilian T1 - Process Systems Engineering for sustainable Polyhydroxybutyrate (PHB) production T2 - Webinar on Biopolymers & Bioplastics, Meetings International, KW - Process Engineering KW - PHB Y1 - 2020 ER - TY - CHAP A1 - Litzenberger, Stefan T1 - The Influence of Backpack-Design on Thermophysiological Parameters during Simulated Hiking Activities. T2 - ISEA 2020 Online - Proceedings 2020, 49(1) KW - Sports Equipment Technologies KW - Hiking Y1 - 2020 SP - 59 EP - 59 ER - TY - JOUR A1 - Sauermann, Stefan T1 - COVID-19 Questionnaires, Surveys, and Item-Banks: Overview of Clinical- and Population-Based Instruments JF - SSRN N2 - New COVID-19 related instruments are being rapidly developed around the world to collect patient- and population-based information. Heterogeneity between instruments limits comparability of results. The present study provides an overview of instruments and resources. We scoped the content domain on a selection of instruments using the Maelstrom taxonomy. Content of the instruments varied widely, from proximal measures (e.g., clinical symptoms, comorbidities, etc.) to distal measures such as political attitudes. We recommend that researchers reuse existing instruments to the greatest extent possible, and that they make results openly available in machine-readable format to facilitate reuse and maximize comparability of results across studies and countries. KW - COVID19 KW - Questionnaires KW - SARS-COV2 Y1 - 2020 ER - TY - GEN A1 - Sauermann, Stefan T1 - FSR Online Debate: Facilitating interoperability of energy services in Europe – (what) can we learn from existing experience?” KW - Interoperability KW - eHealth Y1 - 2020 ER - TY - CHAP A1 - Lackner, Maximilian A1 - Zangl, Sabine A1 - Lembacher, Harald A1 - Rüttinger, Norbert A1 - Fochler, Claus T1 - Non-wovens and recycling – An overview, International Conference on Recycling and Waste Water Management T2 - International Conference on Recycling and Waste Water Management KW - Environment KW - Sustainability KW - Recycling Y1 - 2020 ER - TY - CHAP A1 - Waller, Daniela T1 - Did COVID19 improve our teaching? T2 - ICERI - 13th annual International Conference of Education, Research and Innovation KW - Covid19 KW - teaching KW - eLearning KW - Distance Learning KW - didactic Y1 - ER - TY - GEN A1 - Rohatsch, Lukas T1 - Open Data im Unterricht KW - Open Data KW - Open Government Data KW - Smart City Wien KW - Softwareentwicklung KW - Datenanalyse Y1 - 2020 ER - TY - BOOK A1 - Lackner, Maximilian T1 - Digital Conversion on the Way to Industry 4.0, Selected Papers from ISPR 2020 KW - Engineering Y1 - PB - Springer E-Book ER - TY - GEN A1 - Sauermann, Stefan T1 - Software –eine Aufgabe für den TSB?Orientierung im Dschungel der Beauftragten! KW - eHealth KW - Krankenhaus-IT Y1 - 2020 ER - TY - CHAP A1 - Lackner, Maximilian A1 - Novotny, Florian A. A1 - Zangl, Sabine A1 - Lembacher, Harald T1 - Contribution of waste heat to the anthropogenic greenhouse effect T2 - 2nd International Conference on Environmental Sustainability and Climate Change” KW - Sustainability KW - Environment Y1 - 2020 ER - TY - BOOK A1 - Orsolits, Horst A1 - Lackner, Maximilian ED - Lackner, Maximilian ED - Orsolits, Horst T1 - Virtual Reality und Augmented Reality in der Digitalen Produktion KW - Virtual Reality KW - Production KW - Augmented Reality Y1 - SN - 978-3-658-29009-2 PB - Springer Gabler ER - TY - JOUR A1 - Zangl, Sabine A1 - Husetic, Mirza A1 - Lackner, Maximilian A1 - Lembacher, Harald T1 - Sustainability – bringing about a value changes amongst employees JF - Techniumscience KW - Sustainability Y1 - 2020 ER - TY - JOUR A1 - Sauermann, Stefan T1 - RDA COVID-19 Working Group. Recommendations and Guidelines on data sharing JF - Research Data Alliance, 2020. N2 - The Research Data Alliance (RDA) COVID-19 Working Group members bring various, global expertise to develop a body of work that comprises how data from multiple disciplines inform response to a pandemic combined with guidelines and recommendations on data sharing under the present COVID-19 cicumstances. This extends to research software sharing, in recognition of the key role in software in analysing data. The work has been divided into four research areas (namely, clinical, omics, epidemiology, social sciences) with four cross cutting themes (namely, community participation, indigenous data, legal and ethical considerations, research software), as a way to focus the conversations, and provide an initial set of guidelines in a tight timeframe. The detailed guidelines are aimed to help stakeholders follow best practices to maximise the efficiency of their work, and to act as a blueprint for future emergencies. The recommendations in the document are aimed at helping policymakers and funders to maximise timely, quality data sharing and appropriate responses in such health emergencies. This work was executed in an intense period over just over 6 weeks, with five iterations, all of which were opened for public community comment. Draft releases and comments are avaialable here (https://doi.org/10.15497/rda00046). This activity has been conducted under the RDA guiding principles of Openness, Consensus, Balance, Harmonization, Community-driven, and Non-profit and technology-neutral. KW - COVID19 Data Sharing Y1 - 2020 ER - TY - CHAP A1 - Tabakovic, Momir A1 - Otto, Marc-Oliver A1 - Commerell, Walter A1 - Csapo, Csilla A1 - Vermaak, Herman T1 - Increase industry cooperation in post graduate education via OpenLab’s and MobileLab’s in South Africa T2 - Smart Education and e-Learning 2020 N2 - This paper will present the concepts of the EURYDICE project funded by the Erasmus + program. Within this project the focus on renewable energies with the overall goal to enhance employability. The energy generation landscape in South Africa is undergoing a fundamental transition, as the vision of the energy strategy is to contribute to an affordable energy for all. This vision will be supported by innovative labs and portals which will be developed within this project. One of the goals is closing the gap between TVET (Technical and Vocational Education and Training Colleges) studies and diploma study by the definition of industrial experience requirements for University of Technology (UoT) diploma students. This leads to an increased preparedness and “studyability” of UoT diploma students. Industrial stakeholders will be integrated into the process. The project will develop an “Industrial Portal” as a working tool. To increase industry cooperation in post graduate education “OpenLabs” and “MobileLabs” will be developed within the project. It is intended that industry brings industrial problems into the “Labs”, which will then be solved by the students. KW - Mobile Labs KW - Employability KW - Renewable Energy Y1 - SP - 623 EP - 629 PB - Springer Verlag ER - TY - JOUR A1 - Lackner, Maximilian A1 - Ouattara, Ibrahim A1 - Gharae, Norouz Ali A1 - Abolhassani, Raymond T1 - Clean drinking water global scarcity: a review JF - Journal of Water Science and Engineering KW - Water KW - Engineering Y1 - 2020 ER - TY - CHAP A1 - Lackner, Maximilian T1 - Combination of Devulcanization and Reactive Extrusion for Value-Added Rubber Recycling T2 - Webinar on Biopolymers & Bioplastics, Meetings International, KW - Recycling Y1 - 2020 ER - TY - JOUR A1 - Zangl, Sabine A1 - Pingitzer, D. A1 - Lembacher, Harald A1 - Lackner, Maximilian T1 - Carbon footprint reduction in households using professional services – example of laundry cleaning JF - Pubtexto KW - Sustainability Y1 - 2020 ER - TY - BOOK A1 - Orsolits, Horst A1 - Lackner, Maximilian T1 - Virtual Reality und Augmented Reality in der Digitalen Produktion KW - Virtual Reality Y1 - 2021 SN - 978-3-658-29008-5 PB - Gabler ER - TY - CHAP A1 - Wahl, Harald T1 - The Curriculum Re-Design of an Academic Work-Integrated Computer Science Program T2 - 28th International Conference on Teaching, Education & Learning (ICTEL), December 19-20, 2020 KW - Academic Education KW - Computer Science KW - Work-Integrated Curriculum Y1 - ER - TY - RPRT A1 - Pasteka, Richard T1 - Der Standard, "Eine Lunge, die Beatmungsgeräte testet", 2019, Vienna, Austria. KW - Lungensimulation KW - Biomedical Engineering Y1 - 2020 ER - TY - CHAP A1 - Wahl, Harald A1 - Eckerl, Sabrina A1 - Mense, Alexander T1 - Improvements of an Academic Work-Integrated Computer Science Program T2 - 6th International Conference on Education (ICEDU), Bangkok, Thailand, April 3-5, 2020 KW - Academic Education KW - Work-Integrated Curriculum KW - Computer Science Y1 - ER - TY - CHAP A1 - Fibich, Christian A1 - Tauner, Stefan A1 - Rössler, Peter A1 - Horauer, Martin T1 - Evaluation of Open-Source Linear Algebra Libraries targeting ARM and RISC-V Architectures T2 - Proceedings of the 2020 15th Conference on Computer Science and Information Systems (FedCSIS), 6-9 September 2020, Sofia, Bulgaria KW - Embedded Systems KW - Basic Linear Algebra Subprograms KW - Benchmarks KW - ARM KW - RISC-V Y1 - SP - 663 EP - 672 ER - TY - CHAP A1 - Urbauer, Philipp A1 - Forjan, Mathias T1 - Integration of Health and Public Transport Data to Enable Decision Support for Seniors to Reduce Risk of Infection with Communicable Diseases. T2 - 9th International Conference on Software Development and Technologies for Enhancing Accessibility and Fighting Info-exclusion DSAI (2020) KW - eHealth KW - Interoperability KW - Open Data KW - Public Transport KW - Evidence based Decision Support Y1 - ER - TY - CHAP A1 - Himmelstoß, Felix A1 - Iz, Ali A1 - Votzi, Helmut T1 - Quadratic bidirectional buck-boost converter T2 - Proceedings of 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), Sorrento, Italy, June 24-26, 2020 KW - Buck-Boost converter KW - Quadratic KW - Bidirectional Y1 - 2020 SP - 738 EP - 743 ER - TY - CHAP A1 - Himmelstoß, Felix A1 - Votzi, Helmut T1 - Simple Inductive Charge Pump T2 - Proceedings of 2020 IEEE 14th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG), Setubal, Portugal, 1-3 April, 2020 KW - DC/DC Converter KW - Charge Pump KW - Inductive Y1 - 2020 SP - 291 EP - 296 ER - TY - JOUR A1 - Himmelstoß, Felix A1 - Edelmoser, Karl T1 - Flyback Converter with Quadratic Pre-Stage JF - WSEAS Transactions of Circuits and Systems, Vol. 19, 2020 KW - DC/DC Converter KW - Flyback Converter KW - Quadratic KW - Modeling Y1 - 2020 VL - 2020 IS - Vol. 19 SP - 156 EP - 163 ER - TY - JOUR A1 - Lietze, Stefanie A1 - Langer, Karin T1 - Individualität statt Diversität. Ein Plädoyer für einen neuen (alten) Fokus im Umgang mit Studierenden JF - Zeitschrift für Diversitätsforschung und -management KW - Hochschullehre KW - Diversität KW - Individualität Y1 - IS - Jahrgang 5, Ausgabe 2, 2020 SP - 205 EP - 209 ER - TY - JOUR A1 - Himmelstoß, Felix A1 - Edelmoser, Karl T1 - Modified Fourth-Order Buck-Boost Converter JF - WSEAS Transactions of Circuits and Systems KW - buck-boost converter KW - constant input current KW - large signal model KW - small signal model KW - simulation Y1 - SP - 33 EP - 40 ER - TY - JOUR A1 - Himmelstoß, Felix A1 - Votzi, Helmut T1 - Converter for the Drive of two Brushed DC motors JF - WSEAS Transactions of Circuits and Systems KW - brushed DC machine KW - PMDC motor KW - DC/DC converter KW - three-port converter Y1 - VL - 15 IS - 2020 SP - 249 EP - 256 ER - TY - CHAP A1 - Himmelstoß, Felix A1 - Votzi, Helmut A1 - Windisch, Michael T1 - Quadratic DC/DC converter with autotransformer at the output side T2 - Proceedings of 2020 IEEE 29th International Symposium on Industrial Electronics (ISIE), Delft, Netherlands, June 17-19, 2020 KW - DC/DC Converter KW - Quadratic KW - Tapped Inductor Y1 - 2020 SP - 767 EP - 772 ER - TY - JOUR A1 - Schneider, Karl A1 - Rohringer, Sabrina A1 - Kapeller, Barbara A1 - Grasl, Christian A1 - Kiss, Herbert A1 - Heber, Stefan A1 - Walter, Ingrid A1 - Teuschl, Andreas A1 - Podesser, Bruno K. A1 - Bergmeister, Helga T1 - Riboflavin-mediated photooxidation to improve the characteristics of decellularized human arterial small diameter vascular grafts JF - Acta Biomater. N2 - Vascular grafts with a diameter of less than 6 mm are made from a variety of materials and techniques to provide alternatives to autologous vascular grafts. Decellularized materials have been proposed as a possible approach to create extracellular matrix (ECM) vascular prostheses as they are naturally derived and inherently support various cell functions. However, these desirable graft characteristics may be limited by alterations of the ECM during the decellularization process leading to decreased biomechanical properties and hemocompatibility. In this study, arteries from the human placenta chorion were decellularized using two distinct detergents (Triton X-100 or SDS), which differently affect ECM ultrastructure. To overcome biomechanical strength loss and collagen fiber exposure after decellularization, riboflavin-mediated UV (RUV) crosslinking was used to uniformly crosslink the collagenous ECM of the grafts. Graft characteristics and biocompatibility with and without RUV crosslinking were studied in vitro and in vivo. RUV-crosslinked ECM grafts showed significantly improved mechanical strength and smoothening of the luminal graft surfaces. Cell seeding using human endothelial cells revealed no cytotoxic effects of the RUV treatment. Short-term aortic implants in rats showed cell migration and differentiation of host cells. Functional graft remodeling was evident in all grafts. Thus, RUV crosslinking is a preferable tool to improve graft characteristics of decellularized matrix conduits. KW - Tissue Engineering KW - Biomaterials KW - Vascularization Y1 - 2021 VL - 2020 IS - 116 SP - 246 EP - 258 ER - TY - JOUR A1 - Himmelstoß, Felix A1 - Edelmoser, Karl T1 - Modified Buck-Boost Converter as DC Motor Driver with Continuous Input Current JF - WSEAS Transactions of Circuits and Systems KW - DC/DC converter KW - DC motor drive KW - modified Buck-Boost KW - large and small signal model Y1 - VL - 2020 IS - 19 SP - 186 EP - 194 ER - TY - JOUR A1 - Schneider, Karl H. A1 - Rohringer, Sabrina A1 - Kapeller, Barbara A1 - Grasl, Christian A1 - Kiss, Herbert A1 - Heber, Stefan A1 - Walter, Ingrid A1 - Teuschl, Andreas H. A1 - Podesser, Bruno K. A1 - Bergmeister, Helga T1 - Riboflavin-mediated photooxidation to improve the characteristics of decellularized human arterial small diameter vascular grafts JF - Acta Biomaterialia N2 - Vascular grafts with a diameter of less than 6 mm are made from a variety of materials and techniques to provide alternatives to autologous vascular grafts. Decellularized materials have been proposed as a possible approach to create extracellular matrix (ECM) vascular prostheses as they are naturally derived and inherently support various cell functions. However, these desirable graft characteristics may be limited by alterations of the ECM during the decellularization process leading to decreased biomechanical properties and hemocompatibility. In this study, arteries from the human placenta chorion were decellularized using two distinct detergents (Triton X-100 or SDS), which differently affect ECM ultrastructure. To overcome biomechanical strength loss and collagen fiber exposure after decellularization, riboflavin-mediated UV (RUV) crosslinking was used to uniformly crosslink the collagenous ECM of the grafts. Graft characteristics and biocompatibility with and without RUV crosslinking were studied in vitro and in vivo. RUV-crosslinked ECM grafts showed significantly improved mechanical strength and smoothening of the luminal graft surfaces. Cell seeding using human endothelial cells revealed no cytotoxic effects of the RUV treatment. Short-term aortic implants in rats showed cell migration and differentiation of host cells. Functional graft remodeling was evident in all grafts. Thus, RUV crosslinking is a preferable tool to improve graft characteristics of decellularized matrix conduits. KW - Tissue Engineering KW - Small diameter vascular graft KW - Biomaterials KW - Decellularization KW - Surface modification Y1 - VL - 116 SP - 246 EP - 258 ER - TY - CHAP A1 - Himmelstoß, Felix A1 - Edelmoser, Karl T1 - Quadratic Flyback Converter T2 - Proceedings of PCIM Europe digital days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuernberg, Germany, 7-8 July, 2020 KW - Quadratic Power Converter KW - Flyback Converter KW - Modeling Y1 - 2020 ER - TY - JOUR A1 - Wöber, Wilfried A1 - Novotny, Georg A1 - Mehnen, Lars A1 - Olaverri-Monreal, Cristina T1 - Autonomous Vehicles: Vehicle Parameter Estimation Using Variational Bayes and Kinematics JF - Applied Sciences KW - Variational bayes KW - Vehicle parameter estimation KW - Probabilistic robotics Y1 - VL - 10 IS - 18 ER - TY - JOUR A1 - Langer, Karin A1 - Lietze, Stefanie A1 - Krizek, Gerd Christian T1 - Vector AR3-App. A Good-Practice Example of Learning with Augmented Reality JF - European Journal of Open, Distance and E-Learning N2 - After a discussion about the possibilities and status of augmented reality in education, a good practice example of an augmented reality application is presented. This case study examines the use of an augmented reality app in higher education to support abstract STEM content, such as vectors. Based on this example, the implementation of such apps in didactic concepts and self - directed learning will be discussed. Furthermore, aspects of integration into digital learning and teaching will be addressed. N2 - Nach einem Überblick über die Möglichkeiten und den Status von Augmented Reality im Bildungswesen wird ein Good-Practice-Beispiel einer Augmented-Reality-Anwendung vorgestellt. Dieses Fallbeispiel untersucht anhand dieser App die Verwendung von Augmented Reality in der Hochschulbildung zur Unterstützung abstrakter STEM-Inhalte, wie z.B. Vektoren. Mittels dieses Beispiels wird die Implementierung solcher Apps in didaktische Konzepte sowie ihr Nutzen unter dem Gesichtspunkt des selbstgesteuerten Lernens diskutiert. Darüber hinaus werden Aspekte der Einbindung in das digitale Lernen und Lehren adressiert. KW - Mathematics KW - E-learning KW - App based learning KW - Mobile learning KW - Augmented reality Y1 - VL - 23 IS - 2 ER - TY - BOOK A1 - Pucher, Robert A1 - Seibert-Giller, Verena A1 - Duda, Sabrina T1 - Usability and User Experience: Exam Preparation for the Certified professional for Usability N2 - Usability and user experience are the most critical success factors for software and technical products. Today's users want user-friendly products and are no longer willing to accept a poor user experience. Therefore, all persons involved in developing software or technical products need basic knowledge of usability and UX. This book prepares you for the Certified Professional for Usability Engineering, User Experience Design Foundation Level (CPUE-FL) exam of the user Experience Quality Certification Center (UXQCC) and ensures exactly this knowledge. In an exciting yet easy-to-understand way, you will learn the basics of successful usability and UX design. Theory and numerous examples from the authors' practice illustrate the content and create an exciting learning experience. KW - Usability KW - User Experience KW - UX design KW - UXQCC Y1 - 2020 SN - 978-3-9504772-6-9 ER - TY - JOUR A1 - Holnthoner, Wolfgang A1 - Szwarc, Dorota T1 - Purinergic P2Y 2 receptors modulate endothelial sprouting JF - Cell Mol Life Sci. N2 - Purinergic P2 receptors are critical regulators of several functions within the vascular system, including platelet aggregation, vascular inflammation, and vascular tone. However, a role for ATP release and P2Y receptor signalling in angiogenesis remains poorly defined. Here, we demonstrate that blood vessel growth is controlled by P2Y2 receptors. Endothelial sprouting and vascular tube formation were significantly dependent on P2Y2 expression and inhibition of P2Y2 using a selective antagonist blocked microvascular network generation. Mechanistically, overexpression of P2Y2 in endothelial cells induced the expression of the proangiogenic molecules CXCR4, CD34, and angiopoietin-2, while expression of VEGFR-2 was decreased. Interestingly, elevated P2Y2 expression caused constitutive phosphorylation of ERK1/2 and VEGFR-2. However, stimulation of cells with the P2Y2 agonist UTP did not influence sprouting unless P2Y2 was constitutively expressed. Finally, inhibition of VEGFR-2 impaired spontaneous vascular network formation induced by P2Y2 overexpression. Our data suggest that P2Y2 receptors have an essential function in angiogenesis, and that P2Y2 receptors present a therapeutic target to regulate blood vessel growth. KW - Angiogenesis KW - Endothelial KW - Purinergic KW - P2Y2 KW - Cell Sprouting Y1 - 2020 VL - 2020 IS - Mar. SP - 885 EP - 901 ER - TY - CHAP A1 - Widhalm, Dominik A1 - Goeschka, Karl M. A1 - Kastner, Wolfgang T1 - SoK: A Taxonomy for Anomaly Detection in Wireless Sensor Networks focused on Node-level Techniques T2 - Proceedings of 15th International Conference on Availability, Reliability and Security (ARES 2020), 25-28 August 2020, Virtual Event, Ireland KW - anomaly detection KW - wireless sensor networks KW - taxonomy KW - node-level anomaly KW - computational intelligence Y1 - 2020 ER - TY - JOUR A1 - Yalcin, Faruk A1 - Himmelstoß, Felix T1 - Buck-type Single-phase AC-AC Active Tracking Voltage Regulator Controlled by an Enhanced Hybrid Control Method JF - Sakarya University Journal of Science KW - AC-AC regulator KW - active tracking KW - buck converter Y1 - VL - 2021 IS - 25 SP - 926 EP - 937 ER - TY - JOUR A1 - Krizek, Gerd Christian A1 - Lietze, Stefanie A1 - Beck, Stefan A1 - Langer, Karin T1 - Differenzierte Kompetenzmessung mittels eAssessments - Ein Konzept für die Zukunft JF - fnma KW - education KW - assessment Y1 - 2020 ER -