TY  - JOUR
A1  - Wala, Thomas
A1  - Felleitner-Goll, Katharina
A1  - Wechselberger, Harald
T1  - Stellhebel beim Aufbau von Corporate Start-ups. Dargestellt am Start-Up-Projekt „Hallo Sonne“
JF  - CFO aktuell
KW  - Start-ups
KW  - Corporate
Y1  - 
IS  - 7
SP  - 130
EP  - 134
ER  - 
TY  - JOUR
A1  - Wala, Thomas
A1  - Felleitner-Goll, Katharina
T1  - Digitalisierung in der Weiterbildung. Wie man mit eigenen Online-Kursen ein passives Zusatzeinkommen generieren kann.
JF  - ASoK
KW  - Weiterbildung
KW  - Digitalisierung
Y1  - 
IS  - 5
SP  - 189
EP  - 191
ER  - 
TY  - JOUR
A1  - Wala, Thomas
A1  - Felleitner-Goll, Katharina
T1  - Technologiemanagement
JF  - WISU
KW  - Technologiemanagement
Y1  - 
IS  - 4
SP  - 349
EP  - 350
ER  - 
TY  - JOUR
A1  - Kierspel, Thomas
A1  - Kadek, Alan
A1  - Barran, Perdita
A1  - Bellina, Bruno
A1  - Bijedic, Adi
A1  - Brodmerkel, Maxim N.
A1  - Commandeur, Jan
A1  - Caleman, Carl
A1  - Damjanovic, Tomislav
A1  - Dawod, Ibrahim
A1  - De Santis, Emiliano
A1  - Lekkas, Alexandros
A1  - Lorenzen, Kristina
A1  - López Morillo, Luis
A1  - Mandl, Thomas
A1  - Marklund, Erik G.
A1  - Papanastasiou, Dimitris
A1  - Ramakers, Lennart A. I.
A1  - Schweikhard, Lutz
A1  - Simke, Florian
A1  - Sinelnikova, Anna
A1  - Smyrnakis, Athanasios
A1  - Timneanu, Nicusor
A1  - Uetrecht, Charlotte
T1  - Coherent diffractive imaging of proteins and viral capsids: simulating MS SPIDOC
JF  - Analytical and Bioanalytical Chemistry
N2  - MS SPIDOC is a novel sample delivery system designed for single (isolated) particle imaging at X-ray Free-Electron Lasers
that is adaptable towards most large-scale facility beamlines. Biological samples can range from small proteins to MDa
particles. Following nano-electrospray ionization, ionic samples can be m/z-filtered and structurally separated before being
oriented at the interaction zone. Here, we present the simulation package developed alongside this prototype. The first part
describes how the front-to-end ion trajectory simulations have been conducted. Highlighted is a quadrant lens; a simple but
efficient device that steers the ion beam within the vicinity of the strong DC orientation field in the interaction zone to ensure
spatial overlap with the X-rays. The second part focuses on protein orientation and discusses its potential with respect to
diffractive imaging methods. Last, coherent diffractive imaging of prototypical T = 1 and T = 3 norovirus capsids is shown.
We use realistic experimental parameters from the SPB/SFX instrument at the European XFEL to demonstrate that low-
resolution diffractive imaging data (q < 0.3 nm −1 ) can be collected with only a few X-ray pulses. Such low-resolution data
are sufficient to distinguish between both symmetries of the capsids, allowing to probe low abundant species in a beam if
MS SPIDOC is used as sample delivery.
KW  - SPI
KW  - X-ray
KW  - Native MS
KW  - Protein complex structure
KW  - Simulation
Y1  - 
U6  - http://dx.doi.org/https://doi.org/10.1007/s00216-023-04658-y
VL  - 2023
IS  - 415
SP  - 4209
EP  - 4220
ER  - 
TY  - CHAP
A1  - Steiner, Fabian
A1  - Lueger, Bernhard
A1  - Wallisch, Bernhard
A1  - Polzer, Thomas
T1  - Automated Evaluation System for Microcontroller Assignments
T2  - 2023 IEEE Global Engineering Education Conference (EDUCON), Kuwait
N2  - As IoT systems have increased the number of deployed embedded devices drastically and most of these devices are used in safety or security critical environments, the education of embedded software engineers is more important than ever. A critical part of their education is the development of their intuition for secure and safe software. In this paper 1 1 This research was funded by the city of Vienna (MA-23 call 21, project no. 9). we present an evaluation system used to generate fast and accurate feedback for student submission in, but not limited to, embedded software development courses. The system can be used as a first feedback loop to outline to the students where problems exist in their code and give them the opportunity to analyze and correct their errors. These extra steps ensure that the students can and will be notified early about their mistakes and can search for correct solutions, supporting the student's learning process. We present the implementation of the system and analyze its deployment in a microcontroller software development lecture. This analysis was done by means of surveys of the students and lecturers as well as a statistical analysis of the student submissions. The results show that the students made use of this extra features and even would prefer to have this feedback in other software development lectures as well.
KW  - Student-Centered Learning Environments
KW  - Virtual and Remote Labs and Classrooms
Y1  - 
SN  - 979-8-3503-9943-1
U6  - http://dx.doi.org/https://doi.org/10.1109/EDUCON54358.2023.10125112
SN  - 2165-9567
ER  - 
TY  - CHAP
A1  - Himmelstoss, Felix
A1  - Hofschweiger, Andreas
A1  - Votzi, Helmut
T1  - Quadratic Combined Forward-Flyback Converter
T2  - Power Conversion and Intelligent Motion Conference (PCIM) 2023, May 9-11, 2023 Nurenberg, Germany
KW  - DC/DC converter
KW  - quadratic converter
KW  - forward
KW  - flyback
Y1  - 
U6  - http://dx.doi.org/10.30420/566091315
SP  - 1446
EP  - 1453
ER  - 
TY  - CHAP
A1  - Himmelstoss, Felix
A1  - Ertl, Benjamin
A1  - Votzi, Helmut
T1  - A new limited duty cycle step-up converter
T2  - International European Conference on Interdisciplinary Scientific Research, July 13-15, 2023, Rome, Italy
KW  - DC/DC converter
KW  - step-up converter
KW  - DC-grid
KW  - modeling
KW  - simulation
Y1  - 
SP  - 811
EP  - 833
ER  - 
TY  - CHAP
A1  - Himmelstoss, Felix
A1  - Edelmoser, Karl
T1  - Liquid and surface disinfection with pulsed UVC LEDs
T2  - 2nd Ahi Evran International Conference on Scientific Research, Kirshehir, Turkey, October 21-23, 2022
KW  - disinfection
KW  - light emitting diode
KW  - ultraviolet UV light
KW  - pulsed power
KW  - DC/DC Converter
Y1  - 
SP  - 654
EP  - 664
ER  - 
TY  - CHAP
A1  - Himmelstoss, Felix
A1  - Yaman, Ferhat
A1  - Edelmoser, Karl
T1  - Building block for a spot welder
T2  - International Congress on Innovation Technologies & Engineering, Sept. 2-4, 2022, Izmir, Turkey, pp. 139-148
KW  - spot welding
KW  - capacitor charging
KW  - pulse power
KW  - retrofit
Y1  - 
SP  - 139
EP  - 148
ER  - 
TY  - CHAP
A1  - Himmelstoss, Felix
T1  - Concept to change the voltage transformation ratio of a DC/DC converter
T2  - Cukurova 9th International Scientific Researches Conference, Oct. 9-11, 2022, Adana, Turkey, pp. 258-273
KW  - DC/DC converter
KW  - AC-Switch
KW  - voltage transformation ratio
KW  - modeling
KW  - simulation
Y1  - 
SP  - 258
EP  - 273
ER  - 
TY  - CHAP
A1  - Himmelstoss, Felix
T1  - Three DC/DC Converters with continuous input and output current for LED applications
T2  - International Conference on Engineering Sciences ICES, Baku, Azerbeijan, Nov. 11-12, 2022
KW  - DC/DC converter
KW  - current control
KW  - efficiency
KW  - lighting
Y1  - 
SP  - 335
EP  - 347
ER  - 
TY  - CHAP
A1  - Stohanzl, Martin
A1  - Kubinger, Wilfried
T1  - Low-Cost Multispectral Camera Array with Image Registration
T2  - Proceedings of the Austrian Robotics Workshop 2023, p. 146, 12-13 April, 2023, Linz, Austria
KW  - Multicamera
KW  - Multispectral
KW  - Calibration
Y1  - 
SP  - 146
EP  - 146
ER  - 
TY  - CHAP
A1  - Himmelstoss, Felix
T1  - Modified Boost Converter with additional Boehringer network
T2  - 10th International Zeugma Conference on Scientific Research, June 25-26, 2023, Gaziantep, Turkey, pp. 404-411
KW  - DC/DC converter
KW  - modified boost converter
KW  - switching loss
KW  - loss reduction
KW  - EMC
Y1  - 
SP  - 404
EP  - 411
ER  - 
TY  - GEN
A1  - Nemec, Iris
A1  - Frohner, Matthias
T1  - How can life science students, especially biomedical engineering students, benefit from the extra-curricular offerings and systems already established in other scientific fields?
T2  - Abstracts of the 2022 Joint Annual Conference of the Austrian (ÖGBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation
KW  - extra-curricular offerings
KW  - education
Y1  - 
U6  - http://dx.doi.org/https://doi.org/10.1515/bmt-2022-2001
SP  - 348
ER  - 
TY  - GEN
A1  - Nemec, Iris
A1  - Malaskova, Michaela
A1  - Pereira, Luis
A1  - Pavao, Joao
A1  - Frohner, Matthias
T1  - Experiences of intercultural teaching activities in the field of eHealth
T2  - Abstracts of the 2022 Joint Annual Conference of the Austrian (ÖGBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation
KW  - intercultural teaching
KW  - eHealth
Y1  - 
U6  - http://dx.doi.org/https://doi.org/10.1515/bmt-2022-2001
SP  - 351
ER  - 
TY  - GEN
A1  - Traxler, Lukas
A1  - Balz, Andrea
T1  - Current Advances in the Optical Characterization of Intraocular Lenses
T2  - Abstracts of the 2022 Joint Annual Conference of the Austrian (ÖGBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation
KW  - Intraocular Lenses
Y1  - 
U6  - http://dx.doi.org/https://doi.org/10.1515/bmt-2022-2001
SP  - 102
ER  - 
TY  - CHAP
A1  - Himmelstoss, Felix
T1  - High Step-Up Converter with Continuous Input and Output Current
T2  - 5th International Ankara Multidisciplinary Studies Congress, Ankara, Turkey, Jan. 27-29, 2023
KW  - power converter
KW  - DC/DC converter
KW  - LED supply
KW  - modeling
KW  - control
Y1  - 
SP  - 978
EP  - 989
ER  - 
TY  - JOUR
A1  - Hanetseder, Dominik
A1  - Levstek, Tina
A1  - Teuschl-Woller, Andreas
A1  - Frank, Julia Katharina
A1  - Schaedl, Barbara
A1  - Redl, Heinz
A1  - Marolt Presen, Darja
T1  - Engineering of extracellular matrix from human iPSC-mesenchymal progenitors to enhance osteogenic capacity of human bone marrow stromal cells independent of their age
JF  - Front Bioeng Biotechnol
N2  - Regeneration of bone defects is often limited due to compromised bone tissue physiology. Previous studies suggest that engineered extracellular matrices enhance the regenerative capacity of mesenchymal stromal cells. In this study, we used human-induced pluripotent stem cells, a scalable source of young mesenchymal progenitors (hiPSC-MPs), to generate extracellular matrix (iECM) and test its effects on the osteogenic capacity of human bone-marrow mesenchymal stromal cells (BMSCs). iECM was deposited as a layer on cell culture dishes and into three-dimensional (3D) silk-based spongy scaffolds. After decellularization, iECM maintained inherent structural proteins including collagens, fibronectin and laminin, and contained minimal residual DNA. Young adult and aged BMSCs cultured on the iECM layer in osteogenic medium exhibited a significant increase in proliferation, osteogenic marker expression, and mineralization as compared to tissue culture plastic. With BMSCs from aged donors, matrix mineralization was only detected when cultured on iECM, but not on tissue culture plastic. When cultured in 3D iECM/silk scaffolds, BMSCs exhibited significantly increased osteogenic gene expression levels and bone matrix deposition. iECM layer showed a similar enhancement of aged BMSC proliferation, osteogenic gene expression, and mineralization compared with extracellular matrix layers derived from young adult or aged BMSCs. However, iECM increased osteogenic differentiation and decreased adipocyte formation compared with single protein substrates including collagen and fibronectin. Together, our data suggest that the microenvironment comprised of iECM can enhance the osteogenic activity of BMSCs, providing a bioactive and scalable biomaterial strategy for enhancing bone regeneration in patients with delayed or failed bone healing.
KW  - aging
KW  - iPSCs
KW  - osteogenic differentiation
KW  - bone marrow stromal cells
KW  - extracellular matrix
Y1  - 
U6  - http://dx.doi.org/https://doi.org/10.3389/fbioe.2023.1214019
VL  - 11
ER  - 
TY  - JOUR
A1  - Bernhard, Jonathan C
A1  - Marolt Presen, Darja
A1  - Li, Ming
A1  - Monforte, Xavier
A1  - Ferguson, James
A1  - Leinfellner, Gabriele
A1  - Heimel, Patrick
A1  - Betti, Susanne L
A1  - Shu, Sharon
A1  - Teuschl-Woller, Andreas H
A1  - Tangl, Stefan
A1  - Redl, Heinz
A1  - Vunjak-Novakovic, Gordana
T1  - Effects of Endochondral and Intramembranous Ossification Pathways on Bone Tissue Formation and Vascularization in Human Tissue-Engineered Grafts
JF  - Cells
N2  - Bone grafts can be engineered by differentiating human mesenchymal stromal cells (MSCs) via the endochondral and intramembranous ossification pathways. We evaluated the effects of each pathway on the properties of engineered bone grafts and their capacity to drive bone regeneration. Bone-marrow-derived MSCs were differentiated on silk scaffolds into either hypertrophic chondrocytes (hyper) or osteoblasts (osteo) over 5 weeks of in vitro cultivation, and were implanted subcutaneously for 12 weeks. The pathways' constructs were evaluated over time with respect to gene expression, composition, histomorphology, microstructure, vascularization and biomechanics. Hypertrophic chondrocytes expressed higher levels of osteogenic genes and deposited significantly more bone mineral and proteins than the osteoblasts. Before implantation, the mineral in the hyper group was less mature than that in the osteo group. Following 12 weeks of implantation, the hyper group had increased mineral density but a similar overall mineral composition compared with the osteo group. The hyper group also displayed significantly more blood vessel infiltration than the osteo group. Both groups contained M2 macrophages, indicating bone regeneration. These data suggest that, similar to the body's repair processes, endochondral pathway might be more advantageous when regenerating large defects, whereas intramembranous ossification could be utilized to guide the tissue formation pattern with a scaffold architecture.
KW  - bone tissue engineering
KW  - endochondral
KW  - mesenchymal stromal cells
KW  - ossification
KW  - intramembranous
Y1  - 
U6  - http://dx.doi.org/10.3390/cells11193070
VL  - 11
IS  - 19:3070
ER  - 
TY  - JOUR
A1  - Gollmann-Tepeköylü, Can
A1  - Graber, Michael
A1  - Hirsch, Jakob
A1  - Mair, Sophia
A1  - Naschberger, Andreas
A1  - Pölzl, Leo
A1  - Nägele, Felix
A1  - Kirchmair, Elke
A1  - Degenhart, Gerald
A1  - Demetz, Egon
A1  - Hilbe, Richard
A1  - Chen, Hao-Yu
A1  - Engert, James C
A1  - Böhm, Anna
A1  - Franz, Nadja
A1  - Lobenwein, Daniela
A1  - Lener, Daniela
A1  - Fuchs, Christiane
A1  - Weihs, Anna
A1  - Töchterle, Sonja
A1  - Vogel, Georg F
A1  - Schweiger, Victor
A1  - Eder, Jonas
A1  - Pietschmann, Peter
A1  - Seifert, Markus
A1  - Kronenberg, Florian
A1  - Coassin, Stefan
A1  - Blumer, Michael
A1  - Hackl, Hubert
A1  - Meyer, Dirk
A1  - Feuchtner, Gudrun
A1  - Kirchmair, Rudolf
A1  - Troppmair, Jakob
A1  - Krane, Markus
A1  - Weiss, Günther
A1  - Tsimikas, Sotirios
A1  - Thanassoulis, George
A1  - Grimm, Michael
A1  - Rupp, Bernhard
A1  - Huber, Lukas A
A1  - Zhang, Shen-Ying
A1  - Casanova, Jean-Laurent
A1  - Tancevski, Ivan
A1  - Holfeld, Johannes
T1  - Toll-Like Receptor 3 Mediates Aortic Stenosis Through a Conserved Mechanism of Calcification
JF  - Circulation
KW  - Toll-like receptor 3
KW  - aortic valve disease
KW  - biglycan
KW  - extracellular matrix
KW  - osteogenesis
Y1  - 
U6  - http://dx.doi.org/10.1161/CIRCULATIONAHA.122.063481
VL  - 147
IS  - 20
SP  - 1518
EP  - 1533
ER  -