@inproceedings{SimonsohnDaviesKnorrWildBodeetal., author = {Simonsohn, Angelika and Davies-Knorr, Patricia and Wild-Bode, Christine and Zolyniak, Nicole and Bischoff, Thomas and Pfingsten, Andrea and Fischer, Martin R.}, title = {Entwicklung eines interprofessionellen Online-Kurses f{\"u}r Medizin- und Physiotherapiestudierende}, series = {Gemeinsame Jahrestagung der Gesellschaft f{\"u}r Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL), 25.09. - 28.09.2019, Frankfurt am Main}, booktitle = {Gemeinsame Jahrestagung der Gesellschaft f{\"u}r Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL), 25.09. - 28.09.2019, Frankfurt am Main}, publisher = {German Medical Science}, address = {D{\"u}sseldorf}, doi = {10.3205/19gma310}, url = {http://nbn-resolving.de/urn:nbn:de:0183-19gma3108}, abstract = {Das sich ver{\"a}ndernde Gesundheitssystem macht Anpassungen in der Ausbildung der Gesundheitsberufe notwendig. Dabei wird die St{\"a}rkung der Interprofessionalit{\"a}t besonders betont. Die Entwicklung und Implementierung von interprofessionellen Lernszenarien birgt jedoch oftmals organisatorisch-logistische Herausforderungen. Es fehlen derzeit noch orts- und zeitunabh{\"a}ngige Lernszenarien, die asynchrones interprofessionelles Lernen erm{\"o}glichen. Der neu entwickelte Online-Kurs „Medizin und Physiotherapie in der Rehabilitation" hat zum Ziel, zur Schließung dieser L{\"u}cke beizutragen. Die Kursentwicklung ist Teil eines Forschungsprojekts, das den Einfluss von interprofessionellem Online-Lernen auf die Kooperationskompetenz untersucht.}, language = {de} } @inproceedings{SchaefferHerrmannBoehm, author = {Schaeffer, Leon and Herrmann, David and B{\"o}hm, Valter}, title = {Voruntersuchung einer vorgespannten nachgiebigen Struktur f{\"u}r den Einsatz in dynamischen Handorthesen}, series = {9. IFToMM D-A-CH Konferenz, 16./17. M{\"a}rz 2023, Universit{\"a}t Basel}, booktitle = {9. IFToMM D-A-CH Konferenz, 16./17. M{\"a}rz 2023, Universit{\"a}t Basel}, publisher = {DuEPublico}, address = {Duisburg-Essen}, doi = {10.17185/duepublico/77392}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:465-20230314-153711-8}, abstract = {In diesem Beitrag erfolgt die theoretische Untersuchung einer zweidimensionalen nachgiebigen Tensegrity-Struktur in Hinsicht auf ihre potenzielle Eignung als Basisstruktur f{\"u}r eine dynamische Handorthese. Translatorische und rotatorische relative Bewegungsm{\"o}glichkeiten zwischen den Drucksegmenten der Struktur sind m{\"o}glich, da diese Segmente durch nachgiebige Zugsegmente miteinander verbunden sind. Die Form der Struktur und ihre Vorspannung in einer statisch stabilen Gleichgewichtskonfiguration werden mit Hilfe der Minimierung des Kr{\"a}fte- und Momentenungleichgewichts, der Betrachtung der potentiellen Energie der Struktur und einem Ansatz mittels statischer Finite-Elemente-Methode (FEM) in Abh{\"a}ngigkeit der Segmentparameter untersucht.}, language = {de} } @inproceedings{HeydenreichSchliermannBungteretal., author = {Heydenreich, Patrick and Schliermann, Rainer and Bungter, Tanja and Anneken, Volker}, title = {Motivationale Faktoren von Menschen mit Sehsch{\"a}digungen in der beruflichen Rehabilitation}, series = {25. Rehabilitationswissenschaftliches Kolloquium - Deutscher Kongress f{\"u}r Rehabilitationsforschung: Gesundheitssystem im Wandel - Perspektiven der Rehabilitation ; vom 29. Februar bis 2. M{\"a}rz 2016 in Aachen}, booktitle = {25. Rehabilitationswissenschaftliches Kolloquium - Deutscher Kongress f{\"u}r Rehabilitationsforschung: Gesundheitssystem im Wandel - Perspektiven der Rehabilitation ; vom 29. Februar bis 2. M{\"a}rz 2016 in Aachen}, publisher = {Deutsche Rentenversicherung Bund}, address = {Berlin}, isbn = {978-3-9817814-1-0}, pages = {267 -- 268}, language = {de} } @inproceedings{Haug, author = {Haug, Sonja}, title = {Forschungsprojekte im Masterstudiengang "Soziale Arbeit - Inklusion und Exklusion"}, series = {Runder Tisch Inklusion der Regensburger Partnerst{\"a}dte, 02.12.2017, Regensburg}, booktitle = {Runder Tisch Inklusion der Regensburger Partnerst{\"a}dte, 02.12.2017, Regensburg}, language = {de} } @inproceedings{Pfingsten, author = {Pfingsten, Andrea}, title = {Gleichwertige Ber{\"u}cksichtigung externer und interner Validit{\"a}t quantitativer Studien in einem Systematischen Review zu komplexen Interventionen}, series = {Tagung "Evidenz@Hildesheim", Tagung Fakult{\"a}t Soziale Arbeit und Gesundheit, 26. Oktober 2013, Hildesheim}, booktitle = {Tagung "Evidenz@Hildesheim", Tagung Fakult{\"a}t Soziale Arbeit und Gesundheit, 26. Oktober 2013, Hildesheim}, language = {de} } @inproceedings{DendorferFeldottoWalchetal., author = {Dendorfer, Sebastian and Feldotto, Benedikt and Walch, Blasius and Koch, Patrick and Knoll, Alois}, title = {Co-Development of an Infant Prototype in Hardware and Simulation based on CT Imaging Data}, series = {IEEE International Conference on Cyborg and Bionic Systems (CBS), 2019, Munich}, booktitle = {IEEE International Conference on Cyborg and Bionic Systems (CBS), 2019, Munich}, pages = {6}, abstract = {The development of biomimetic robots has gained research interest in the last years as it may both help under-standing processes of motion execution in biological systems as well as developping a novel generation of intelligent and energy efficient robots. However, exact model generation that builds up on observations and robot design is very time intensive. In this paper we present a novel pipeline for co-development of biomimetic hardware and simulation models based on biological Computer Tomography (CT) data. For this purpose we exploit State of the Art rapid prototyping technologies such as 3D Printing and the Neurorobotics Platform for musculoskeletal simulations in virtual environments. The co-development integrates both advantages of virtual and physical experimental models and is expected to increase development speed of controllers that can be tested on the simulated counterpart before application to a printed robot model. We demonstrate the pipeline by generating a one year old infant model as a musculoskeletal simulation model and a print-in-place 3D printed skeleton as a single movable part. Even though we hereonly introduce the initial body generation and only a first testsetup for a modular sensory and control framework, we can clearly spot advantages in terms of rapid model generation and highly biological related models. Engineering costs are reducedand models can be provided to a wide research community for controller testing in an early development phase.}, subject = {Biomechanische Analyse}, language = {en} } @inproceedings{JungtaeublSchmitzGrossetal., author = {Jungt{\"a}ubl, Dominik and Schmitz, Paul and Gross, Simon and Dendorfer, Sebastian}, title = {FEA of the transiliacal internal fixator as an osteosynthesis of pelvic ring fractures}, series = {CMBEBIH 2017, Proceedings of the International Conference on Medical and Biological Engineering 2017}, booktitle = {CMBEBIH 2017, Proceedings of the International Conference on Medical and Biological Engineering 2017}, editor = {Badnjevic, Almir}, publisher = {Springer}, address = {Singapore}, isbn = {978-981-10-4165-5}, doi = {10.1007/978-981-10-4166-2_32}, pages = {212 -- 217}, abstract = {Common Schanz screw systems can be used to stabilize pelvic ring fractures. In order to accommodate for different patient's requirements, implants can be placed in cranio-caudal direction into the os ilium (T1), or into the supraacetabular bone canal, and thus, in dorso-ventral direction (T2). Whereas both techniques are currently used, no data of the biomechanical behavior is available up to this date. The aim of this study is to analyze, whether T2 shows biomechanical advantages with respect to tissue and implant stresses due to the enlarged bone-implant interface. Forces acting on the pelvis were analyzed using motion capture data of a gait cycle obtained by the utilization of a musculoskeletal simulation program. A three dimensional finite element (FE) model of the pelvis with grayscale-based material properties was generated. The muscle and joint reaction forces at toe-off were applied to the FE model and instable pelvis fractures were implemented. The osteosynthesis systems were positioned within the model in order to enable the comparison between the two different surgical techniques. Stresses and displacements were analyzed for bone tissue, fracture zone and implant. T2 lead to approx. 30\% larger displacements in the fracture zone. Von-Mises stresses were larger for T2 in the implant (80 MPa vs. 227 MPa), whereas T1 leads to larger stresses in the bone tissue (200 MPa vs. 140 MPa). Both implantation techniques showed a good biomechanical behavior. Differences could be found with respect to tissue strains and deformations in the fracture zone. If bone quality or fracture healing are of concern, T2 or T1 should be used, respectively. However, both techniques seem to be applicable for cases with no special requirements. Further analyses aim to investigate the behavior under cyclic loading.}, subject = {Beckenbruch}, language = {en} } @inproceedings{DendorferKubowitschSuess, author = {Dendorfer, Sebastian and Kubowitsch, Simone and S{\"u}ß, Franz}, title = {How to determine the effect of working conditions on the human body}, series = {11th International Scientific Conference on Production Engineering DEVELOPMENT AND MODERNIZATION OF PRODUCTION (RIM 2017), Sarajevo, Bosnia and Herzegovina}, booktitle = {11th International Scientific Conference on Production Engineering DEVELOPMENT AND MODERNIZATION OF PRODUCTION (RIM 2017), Sarajevo, Bosnia and Herzegovina}, abstract = {Work places and conditions strains the human body, both psychologically and biomechanically. In order to analyse working conditions and in the following to improve them, detailed knowledge about the effect of the different stressors on the body is needed. This manuscript discusses methods on how to evaluate biomechanical and mental loading and its effect on the musculoskeletal system. A possible workflow for the analysis is presented.}, subject = {Arbeitsbedingungen}, language = {en} } @inproceedings{WeberDendorferDullienetal., author = {Weber, Tim A. and Dendorfer, Sebastian and Dullien, Silvia and Grifka, Joachim and Verkerke, Gijsbertus Jacob and Renkawitz, Tobias}, title = {Measuring functional outcome after total hip replacement with subject-specific hip joint loading}, series = {Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine}, volume = {226}, booktitle = {Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine}, number = {12}, doi = {10.1177/0954411912447728}, pages = {939 -- 946}, abstract = {Total hip replacement is an often-performed orthopedic surgical procedure; the amount of procedures undertaken will increase since our life expectancy is growing. In order to optimize function, hip biomechanics should be restored to as near normal as possible. The goal of this pilot study was to determine whether or not it is feasible to compute the vectorial hip reaction force pathways on the head of the prosthesis and the force angles relative to the cup of the prosthesis that occur during gait in total hip replacement patients, serving as an objective measurement of the functional outcome following hip replacement. A three-dimensional gait analysis, measuring ground reaction forces and kinematics, was performed. The data retrieved from the gait analysis was used as the input for the musculoskeletal model to compute vectorial joint reaction forces for data processing. To evaluate the position and orientation of the joint reaction forces, the force path, as well as the force angles for the operated and non-operated joint, has been calculated during the stance phase of the specific leg. The force path for subject 2 on the non-operated side is only located in the posterior-lateral quarter, as is the force path for subject 1. In contrast to this subject, the force path for subject 2 at the operated hip joint can be found only within the anterior quarter of the head of the implant, where it is nearly equally distributed in the medio-lateral half of the prosthesis head. The force-inclination angles on the cup of subject 1, with respect to the plane of the socket face, indicates that the force vector is mainly positioned in the same quadrant when compared with subject 2 (in a cup-fixed coordinate system). The force-anteversion angle behaves similarly to the force-inclination angle, even when the effects are not as pronounced. The proposed methods in this article are aiming to define two functional outcomes of total hip replacement that are related to wear and rim loading. It is accepted that wear is not only a function of time, but a function of use. Owing to the methods listed in this article, we are able to determine a) the applied force and b) the sliding distance (force pathway) in a subject-specific manner. The computed hip-reaction force angles and the distance to the rim cup are a measurement for cup or rim loading, and occurs in the so-called safe-zones. This method may well give us insight into the biomechanical situation during gait, after receiving total hip replacement, that we need to fully understand the mechanisms acting on a hip joint and to prove a possible increase of functional outcome after receiving total hip replacement.}, subject = {H{\"u}ftgelenkprothese}, language = {en} } @inproceedings{AuerKubowitschKrutschetal., author = {Auer, Simon and Kubowitsch, Simone and Krutsch, Werner and Renkawitz, Tobias and S{\"u}ß, Franz and Dendorfer, Sebastian}, title = {Effect of mental demand on knee forces in professional youth soccer players}, series = {ISBS Proceedings Archive}, volume = {38}, booktitle = {ISBS Proceedings Archive}, number = {1, Art. 28}, abstract = {Soccer is one of the most popular sports all around the world. It is an injurious type of sport with a focus on lower extremities and high psychological pressure during matches. The stressor is linked with injuries and an increased musculoskeletal loading. This study investigates the influence of cognitive stress on the load profile of the knee joint. Twelve professional youth soccer players performed highly dynamic runs with and without additional cognitive stress. The runs were analysed with a musculoskeletal simulation software. The data analysis shows no difference in knee joint reaction loading under additional mental stress compared to the baseline. Yet running times are significantly lower in the baseline. While there is no increase in the joint loads, the running times indicate an altered movement behaviour when the subjects are exposed to additional mental demand.}, subject = {Kniegelenk}, language = {en} } @inproceedings{GlemarecHoermannLaueretal., author = {Gl{\´e}marec, Yann and H{\"o}rmann, Amelie and Lauer, Norina and Buche, C{\´e}dric and Lugrin, Jean-Luc and Latoschik, Marc Erich}, title = {Towards Virtual Audience Simulation For Speech Therapy}, series = {Proceedings of the 23rd ACM International Conference on Intelligent Virtual Agents (IVA '23), W{\"u}rzburg, September 19 - 22, 2023}, booktitle = {Proceedings of the 23rd ACM International Conference on Intelligent Virtual Agents (IVA '23), W{\"u}rzburg, September 19 - 22, 2023}, publisher = {Association for Computing Machinery}, address = {New York}, isbn = {78-1-4503-9994-4}, doi = {10.1145/3570945.3607348}, pages = {1-3}, abstract = {The utilization of virtual reality (VR) technology has shown promise in various therapeutic applications, particularly in exposure therapy for reducing fear of certain situations objects or activities, e.g. fear of height, or negative evaluation of others in social situations. VR has been shown to yield positive outcomes in follow-up studies, and provides a safe and ecological therapeutic environment for therapists and their patients. This paper presents a collaborative effort to develop a VR speech therapy system which simulates a virtual audience for users to practice their public speaking skills. We describe a novel web-based graphica user interface that enables therapists to manage the therapy session using a simple timeline. Lastly, we present the results from a qualitative study with therapists and teachers with functional dysphonia, which highlight the potential of such an application to support and augment the therapists' work and the remaining challenges regarding the design of natural interactions, agent behaviours and scenario customisation for patients.}, subject = {Stimme}, language = {en} } @inproceedings{KempfBergerTunkelCorstenetal., author = {Kempf, Sabrina and Berger-Tunkel, Merle and Corsten, Sabine and Lutz-Kopp, Matthias and Lauer, Norina}, title = {Selbsthilfe bei Aphasie: Chancen und Herausforderungen durch separate Betroffenen- und Angeh{\"o}rigengruppen}, series = {Jahrestagung des Deutschen Bundesverbands f{\"u}r Logop{\"a}die (dbl), Juni 2018, Bielefeld}, booktitle = {Jahrestagung des Deutschen Bundesverbands f{\"u}r Logop{\"a}die (dbl), Juni 2018, Bielefeld}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-8614}, pages = {44}, language = {de} } @inproceedings{RosendahlKempfLauer, author = {Rosendahl, C. and Kempf, Sabrina and Lauer, Norina}, title = {"In guten wie in schlechten Zeiten" - Wie Angeh{\"o}rige sprachliche und k{\"o}rperliche Beeintr{\"a}chtigungen des Partners nach einem Schlaganfall erleben}, series = {Jahrestagung des Deutschen Bundesverbands f{\"u}r Logop{\"a}die (dbl),Juni 2018, Bielefeld}, booktitle = {Jahrestagung des Deutschen Bundesverbands f{\"u}r Logop{\"a}die (dbl),Juni 2018, Bielefeld}, pages = {61}, language = {de} } @inproceedings{BieberSpelsbergLauer, author = {Bieber, Claudia and Spelsberg, Stefanie and Lauer, Norina}, title = {Reduzierung intersilbischer Pausen mittels vereinfachten Zeitlupensprechens unter Einbeziehung von Praat als Feedback-Instrument bei mittelschwerer, chronischer Sprechapraxie}, series = {11. Jahrestagung der Gesellschaft f{\"u}r Aphasieforschung und -behandlung, Tagungsband}, booktitle = {11. Jahrestagung der Gesellschaft f{\"u}r Aphasieforschung und -behandlung, Tagungsband}, address = {Konstanz}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-9063}, pages = {43 -- 45}, language = {de} } @inproceedings{BirkenmaierKrenkel, author = {Birkenmaier, Clemens and Krenkel, Lars}, title = {Convolutional Neural Networks for Approximation of Internal Non-Newtonian Multiphase Flow Fields}, series = {14th World Congress on Computational Mechanics (WCCM), ECCOMAS Congress 2020: 19-24 July 2020, Paris, France}, booktitle = {14th World Congress on Computational Mechanics (WCCM), ECCOMAS Congress 2020: 19-24 July 2020, Paris, France}, editor = {Chinesta, F. and Abgrall, R. and Allix, O. and Kalistke, M}, publisher = {CIMNE}, doi = {10.23967/wccm-eccomas.2020.107}, abstract = {Neural networks (NNs) as an alternative method for universal approximation of differential equations have proven to be computationally efficient and still sufficiently accurate compared to established methods such as the finite volume method (FVM). Additionally, analysing weights and biases can give insights into the underlying physical laws. FVM and NNs are both based upon spacial discretisation. Since a Cartesian and equidistant grid is a raster graphics, image-to-image regression techniques can be used to predict phase velocity fields as well as particle and pressure distributions from simple mass flow boundary conditions. The impact of convolution layer depth and number of channels of a ConvolutionDeconvolution Regression Network (CDRN), on prediction performance of internal non-Newtownian multiphase flows is investigated. Parametric training data with 2055 sets is computed using FVM. To capture significant non-Newtownian effects of a particle-laden fluid (e.g. blood) flowing through small and non-straight channels, an Euler-Euler multiphase approach is used. The FVM results are normalized and mapped onto an equidistant grid as supervised learning target. The investigated NNs consist of n= {3, 5, 7} corresponding encoding/decoding blocks and different skip connections. Regardless of the convolution depth (i.e. number of blocks), the deepest spacial down-sampling via strided convolution is adjusted to result in a 1 × 1 × f · 2nfeature map, with f = {8, 16, 32}. The prediction performance expressed is as channel-averaged normalized root mean squared error (NRMSE). With a NRMSE of < 2 · 10-3, the best preforming NN has f = 32 initial feature maps, a kernel size of k = 4, n = 5 blocks and dense skip connections. Average inference time from this NN takes < 7 · 10-3s. Worst accuracy at NRMSE of approx 9 · 10-3is achieved without any skips, at k = 2, f = 16 and n = 3, but deployment takes only < 2 · 10-3s Given an adequate training, the prediction accuracy improves with convolution depth, where more features have higher impact on deeper NNs. Due to skip connections and batch normalisation, training is similarly efficient, regardless of the depth. This is further improved by blocks with dense connections, but at the price of a drastically larger model. Depending on geometrical complexity, spacial resolution is critical, as it increases the number of learnables and memory requirements massively.}, language = {en} } @inproceedings{StelzerTauwaldVielsmeieretal., author = {Stelzer, Vera and Tauwald, Sandra Melina and Vielsmeier, Veronika and Cieplik, Fabian and Kandulski, Arne and Schneider-Brachert, Wulf and W{\"u}nsch, Olaf and R{\"u}tten, Markus and Krenkel, Lars}, title = {Generation and Distribution of Surgical Smoke During High Frequency Electrocauterization}, series = {New Results in Numerical and Experimental Fluid Mechanics XIV. STAB/DGLR Symposium 2022}, booktitle = {New Results in Numerical and Experimental Fluid Mechanics XIV. STAB/DGLR Symposium 2022}, editor = {Dillman, Andreas and Heller, Gerd and Kraemer, Ewald and Wagner, Claus and Weiss, Julien}, publisher = {Springer Nature Switzerland AG}, address = {Cham, Switzerland}, isbn = {978-3-031-40481-8}, doi = {10.1007/978-3-031-40482-5_53}, pages = {559 -- 568}, abstract = {Surgical Smoke is generated during the cauterization of tissue with high-frequency (HF) devices and consists of 95\% water vapor and 5\% cellular debris. When the coagulation tweezers, which are supplied with HF voltage by the HF device, touch tissue, the electric circuit is closed, and smoke is generated by the heat. In-vivo investigations are performed during tracheotomies where surgical smoke is produced during coagulation of tissue. Furthermore, in-vitro parametric studies to investigate the particle number and size distribution and the spatial distribution of surgical smoke with laser light sheet technique are conducted. With higher power of the HF device, the particles generated are larger in size and the total number of particles generated is also higher. Adding artificial saliva to the tissue shows even higher particle counts. The study by laser light sheet also confirms this. The resulting characteristic size distribution, which may include viruses and bacterial components, confirms considering the risk arising from surgical smoke. Furthermore, the experiments will provide the database for further numerical investigations.}, language = {en} } @inproceedings{HoehRaptis, author = {H{\"o}h, H. and Raptis, Georgios}, title = {Applications of the Erbium: YAG Laser in Ophthalmology - Cataracta-, Glaukoma-, Eyelid-Surgery and pars plana Vitrectomy}, abstract = {Recent developments in lasers have provided us the possibility of laser ocular surgery. The xenon, argon, neodymium:YAG and dye lasers have been successfully used in out-patient clinics. The excimer laser has been attracting researchers' interest in the new application of laser to cornea and lens. The erbium:YAG laser emits a 2.94-microns beam that can ablate the transparent ocular tissues such as lenses and corneas. The author has applied this laser to the cornea, lens, vitreous and other ocular tissues. The erbium:YAG laser beam was directed through a 1.5-meter-long, 200-microns-diameter fiberoptic guide. The radiant energy measured about 50 mJ at the end of the probe. The laser was emitted as a 400-microsecond pulse. Freshly enucleated rabbit eyes were used in this study. Laser burns were applied to the tissue surface at various energy settings. At minimal power, the tissues were coagulated by the erbium:YAG laser application. At a power of more than 636-954 mJ/mm2, tissue began to evaporate; the tissue loss was observed under a surgical light microscope. Corneal photoablation, lens ablation, iridotomy, trabeculotomy, cutting of the vitreous and retinal ablation were easily performed. Like the excimer laser, the erbium:YAG laser is a potential tool for ocular surgery.}, subject = {Augenchirurgie}, language = {en} } @inproceedings{HornPippigRaptisetal., author = {Horn, Lars-Christian and Pippig, S. and Raptis, Georgios and Fischer, Uta and K{\"o}hler, U. and Hentschel, Bettina and Martin, Rosemarie}, title = {Tumorassoziierte Proteolyse beim Zervixkarzinom}, series = {87. Tagung der Deutschen Gesellschaft f{\"u}r Pathologie, 14. Juni 2003}, booktitle = {87. Tagung der Deutschen Gesellschaft f{\"u}r Pathologie, 14. Juni 2003}, subject = {Geb{\"a}rmutterhalskrebs}, language = {de} } @inproceedings{SpychalskiRodeRitthaleretal., author = {Spychalski, Dominik and Rode, Olaf and Ritthaler, Markus and Raptis, Georgios}, title = {Conceptual Design and Analysis of a Mobile Digital Identity for eHealth Applications}, series = {2021 IEEE EMBS International Conference on Biomedical and Health Informatics (BHI): 27-30 July 2021, Athens, Greece}, booktitle = {2021 IEEE EMBS International Conference on Biomedical and Health Informatics (BHI): 27-30 July 2021, Athens, Greece}, publisher = {IEEE}, issn = {2641-3604}, doi = {10.1109/BHI50953.2021.9508554}, pages = {1 -- 4}, abstract = {As mobile technology continues to improve, more and more professional services are being offered as mobile apps. This paradigm shift also affects eHealth applications. Digital identities in nation-wide eHealth infrastructures are often realized via smart cards, which however, do not support mobile applications well. In this paper we propose a concept of a mobile eID for eHealth based on smartphones with embedded secure hardware, an mobile authenticator app and an account manager as well as an Identity Provider (IdP) as backend services. The practical applicability of the concept is shown using the example of the German eHealth infrastructure. Our method generates a cryptographic key pair in secure hardware on the user's smartphone, registers it on the IdP and uses it to authenticate on the IdP. The security of the private key and the integrity of the smartphone is also validated and attestated. The user's established smartcard-based identity "Electronic Health Card" (EHC) forms the trust anchor. To authenticate against specialist eHealth apps the IdP issues standard-compliant OAuth2.0/OIDC tokens with a limited period of validity. Furthermore, in our security analysis we demonstrate that based on specific security requirements for smartphones and operating systems, at least the eIDAS security level "substantial" related to the technical security aspects of the system can be achieved. On the basis of this research German legislation was adjusted and "digital identities" supplementary to the smartcard-based EHC will be issued from 2023 in the German eHealth infrastructure.}, language = {en} } @inproceedings{BirkenmaierSteigerPhilippetal., author = {Birkenmaier, Clemens and Steiger, Tamara and Philipp, Alois and Lehle, Karla and Krenkel, Lars}, title = {Flow-induced accumulations of von Willebrand factor inside oxygenators during extracorporeal life support therapy}, series = {Proceedings of 12th International Conference BIOMDLORE 2018, June 28-30, 2018, Białystok, Poland}, booktitle = {Proceedings of 12th International Conference BIOMDLORE 2018, June 28-30, 2018, Białystok, Poland}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-2396-1}, doi = {10.1109/BIOMDLORE.2018.8467205}, pages = {3}, abstract = {BACKGROUND: Shear-induced conformational changes of von Willebrand factor (vWF) may be responsible for coagulation disorder and clot formation inside membrane oxygenators (MOs) during extracorporeal membrane oxygenation (ECMO) therapy. OBJECTIVE: The aim was to identify vWF structures inside clinically used MOs and employ computational fluid dynamics to verify the corresponding flow conditions. METHODS: Samples from gas exchange membranes (GEM) from MOs were analysed for accumulations of vWF and P-selectin-positive platelets using immunofluorescence techniques. Streamlines and shear rates of the flow around GEMs were computed using a laminar steady Reynolds-Averaged-Navier-Stokes approach. RESULTS: Most samples were colonized with equally distributed leukocytes, integrated in thin cobweb-like vWF-structures. Only 25 \% of the samples showed extended accumulations of vWF. Computed streamlines showed considerable cross flow between interconnected neighbouring channels. Stagnation points were non-symmetric and contact faces were washed around closely. The occurring maximum shear rates ranged from 2,500 to 3,000 1/s. CONCLUSIONS: If pronounced vWF structures are present, shape and extent match the flow computations well. Computed shear rates bear a critical degree of uncertainty due to the improper viscosity model. If flow conditions inside the MO were sufficient to affect vWF, a more consistent distribution of vWF across the samples should be present.}, language = {en} } @inproceedings{MarkusRuettenKrenkelKessler, author = {Markus R{\"u}tten, and Krenkel, Lars and Kessler, Roland}, title = {Secondary Flow Effects as Physical Mechanism of Molecular Species Transport in Highly Oscillating Generic-Trachea Flows}, series = {83rd Annual Scientific Conference of the International Association of Applied Mathematics and Mechanics, 26.-30. M{\"a}rz 2012, Darmstadt, Germany}, booktitle = {83rd Annual Scientific Conference of the International Association of Applied Mathematics and Mechanics, 26.-30. M{\"a}rz 2012, Darmstadt, Germany}, abstract = {The high frequency oscillation artificial respiration technique is often the last hope for patients to survive highly damaged lung tissue. The mortality can significantly be reduced. In comparison to conventional artificial respiration the applied volume flow rate and pressure is significantly lowered in order to avoid further damaging of lung tissue and remaining intact alveolae. However, the physical mechanism of transport of oxygen to the aeriols under high frequency oscillation is not well understood. In the upper part of the lung convection is dominant, in contrast, the gas exchange in the lower parts of the lung is mainly driven by diffusion. It is not clear how associated gradients of concentrations of different molecular species are then achieved. Highly oscillating fluid flows has been a long research topic in fluid dynamics. It is known that oscillating pressure fluctuations are able to induce secondary flows, in particular, in curved ducts and pipes. The question is, whether the trachea enforces the generation of secondary flow by its kidney like cross section geometry. The influence of molecular species of different densities onto the formation of secondary flows and the convectional transport within the trachea is investigated. In order to clarify the physical mechanisms behind flow simulations have been conducted by using state of the art CFD techniques.}, language = {en} } @inproceedings{BirkenmaierKrenkel, author = {Birkenmaier, Clemens and Krenkel, Lars}, title = {Convolutional Neural Networks for Approximation of Blood Flow in Artificial Lungs}, series = {New Results in Numerical and Experimental Fluid Mechanics XIII: Contributions to the 22nd STAB/DGLR Symposium}, booktitle = {New Results in Numerical and Experimental Fluid Mechanics XIII: Contributions to the 22nd STAB/DGLR Symposium}, number = {1. Auflage}, editor = {Dillmann, Andreas and Heller, Gerd and Kr{\"a}mer, Ewald and Wagner, Claus}, publisher = {Springer International Publishing}, address = {Cham}, isbn = {978-3-030-79560-3}, doi = {10.1007/978-3-030-79561-0_43}, pages = {451 -- 460}, abstract = {Blood flow in channels of varying diameters <500μm exhibits strong non-linear effects. Multiphase finite volume approaches are feasible, but still computationally costly. Here, the feasibility of applying convolutional neural networks for blood flow prediction in artificial lungs is investigated. Training targets are precomputed using an Eulerian two-phase approach. To match with experimental data, the interphase drag and lift, as well as intraphase shear-thinning are adapted. A recursively branching regression network and convolution/deconvolution networks with plain skip connections and densely connected skips are investigated. A priori knowledge is incorporated in the loss functional to prevent the network from learning non-physical solutions. Inference from neural networks is approximately six orders of magnitude faster than the classical finite volume approach. Even if resulting in comparably coarse flow fields, the neural network predictions can be used as close to convergence initial solutions greatly accelerating classical flow computations.}, language = {en} } @inproceedings{TauwaldQuadrioRuettenetal., author = {Tauwald, Sandra Melina and Quadrio, Maurizio and R{\"u}tten, Markus and Stemmer, Christian and Krenkel, Lars}, title = {High Spatial Resolution Tomo-PIV of the Trachea Focussing on the Physiological Breathing Cycle}, series = {New Results in Numerical and Experimental Fluid Mechanics XIV - Contributions to the 23nd STAB/DGLR Symposium}, booktitle = {New Results in Numerical and Experimental Fluid Mechanics XIV - Contributions to the 23nd STAB/DGLR Symposium}, publisher = {Springer}, abstract = {Investigations of complex patient-specific flow in the nasopharynx requires high resolution numerical calculations validated by reliable experiments. When building the validation base and the benchmark of computational fluid dynamics, an experimental setup of the nasal airways was developed. The applied optical measurement technique of tomo-PIV supplies information on the governing flow field in three dimensions. This paper presents tomo-PIV measurements of the highly complex patient-specific geometry of the human trachea. A computertomographic scan of a person's head builds the basis of the experimental silicone model of the nasal airways. An optimised approach for precise refractive index matching avoids optical distortions even in highly complex non-free-of-sight 3D geometries. A linear-motor-driven pump generates breathing scenarios, based on measured breathing cycles. Adjusting of the CCD cameras' double-frame-rate PIV-Δt enables the detailed analysis of flow structures during different cycle phases. Merging regions of interest enables high spatial resolution acquisition of the flow field.}, language = {en} } @inproceedings{WiesentGeithWagner, author = {Wiesent, Lisa and Geith, Markus A. and Wagner, Marcus}, title = {Simulation of Fluid-Structure Interaction between injection medium and balloon catheter using ICFD}, series = {11th European LS-DYNA Conference 2017, 9 - 11 May, Salzburg, Austria}, booktitle = {11th European LS-DYNA Conference 2017, 9 - 11 May, Salzburg, Austria}, isbn = {978-3981621549}, abstract = {Arteriosclerosis is a major health issue worldwide. While it is commonly treated by the implantation of an balloon-expandable stent, micro injuries may occur during stent deployment, and induce in-stent restenosis, whose consequence can be fatal. Studying this undesirable phenomenon is usually limited as experimental data is hard to obtain on ethical ground. Numerical simulation are performed to better understand this problem. To construct a more realistic simulation of a balloon-expandable stent, a partitioned strongly-coupled FSI simulation of the balloon deployment was set up using the ICFD solver of LS-DYNA, - a quite innovative approach. The complex balloon configuration as well as the interaction of the injection medium and the balloon structure was considered. The balloon structure consisting of shell elements was obtained from preliminary balloon folding and pleating simulations. The balloon consists of a flexible thin walled polyamide. The injection fluid is implemented using volume elements. Balloon deployment was initiated by a pressure boundary condition inducing a volume flow into the balloon. The initial feasibility analysis showed promising result including a continuous balloon deployment and a reasonable development of the fluid pressure and velocity field. However, applying this FSI approach to a more complex balloon structure led to a non convergent solution. The non-convergence could be mainly reduced to mechanical factors including the low wall thickness of the balloon (< 0.05 mm) and the flexibility of the polyamide. Further, the ICFD solver shows less accuracy concerning the FSI conditions when dealing with thin flexible structures as well as enclosed volumes. A shell thickness of 0.06 mm is believed to result in a convergent solution.}, subject = {Koronare Herzkrankheit}, language = {en} } @inproceedings{GeithSommerSchratzenstalleretal., author = {Geith, Markus A. and Sommer, Gerhard and Schratzenstaller, Thomas and Holzapfel, Gerhard A.}, title = {First Approaches in Quantifying Acute Vascular Damage due to Stenting}, series = {23rd Congress of the European Society of Biomechanics, July 2-5,2017, Seville, Spain}, booktitle = {23rd Congress of the European Society of Biomechanics, July 2-5,2017, Seville, Spain}, subject = {Stent}, language = {en} } @inproceedings{HaugSeidenstuecker, author = {Haug, Sonja and Seidenst{\"u}cker, Barbara}, title = {Herr Rossi sucht das Gl{\"u}ck (und Frau Rossi auch) - Geschlechterrollen im Wandel}, series = {Einf{\"u}hrung ins Studium, 19.03.2013, Hochschule Regensburg}, booktitle = {Einf{\"u}hrung ins Studium, 19.03.2013, Hochschule Regensburg}, language = {de} } @inproceedings{FuhrmannFarmbauerNiemetz, author = {Fuhrmann, Thomas and Farmbauer, Michael and Niemetz, Michael}, title = {Integrating GNU Radio into a Virtual Course about Communication Systems}, series = {44th International Convention on Information, Communication and Electronic Technology (MIPRO): 27.09. - 01.10.2021, Opatija, Croatia}, booktitle = {44th International Convention on Information, Communication and Electronic Technology (MIPRO): 27.09. - 01.10.2021, Opatija, Croatia}, publisher = {IEEE}, isbn = {978-953-233-101-1}, doi = {10.23919/MIPRO52101.2021.9596700}, pages = {1565 -- 1570}, abstract = {Due to the COVID-19 pandemic, the course Communication Systems was transferred from presence to a virtual lecture. No hands-on lab experiments were possible. Therefore, a GNU Radio practical part was integrated into the lecture. A tutorial was written to guide students through the first steps with GNU Radio to decrease initial problems and increase student motivation. Several examples were given regarding digital signal processing, analogue and digital modulation and demodulation. Software Defined Radio receivers were set up in the amateur radio lab of the university and connected to the internet so that students were able to get real radio data to be analyzed and demodulated with their own GNU Radio models. This enables a knowledge transfer from simulated signal processing to the analysis and demodulation of real live signals. Students showed medium to high interest in practical examples during the lectures and tried their own GNU Radio simulations. Overall, the integration of GNU Radio and Software Defined Radio receivers into this virtual lecture gave additional benefits for the students to deal with signal processing and demodulation experiments. It is planned to use GNU Radio in the future for complementary practical examples to the hands-on experiments in the lab.}, language = {en} } @inproceedings{Haug, author = {Haug, Sonja}, title = {Social Capital and Migration}, series = {Jubil{\"a}umsveranstaltung 10 Jahre Rostocker Zentrum zur Erforschung des Demographischen Wandels, 12.-13.01.2015, Berlin}, booktitle = {Jubil{\"a}umsveranstaltung 10 Jahre Rostocker Zentrum zur Erforschung des Demographischen Wandels, 12.-13.01.2015, Berlin}, language = {en} } @inproceedings{BittnerHorneckerTwisselmannetal., author = {Bittner, Peter and Hornecker, Eva and Twisselmann, Ute and Weber, Karsten}, title = {Die berufliche Situation informatisch Handelnder in der ethischen Reflexion}, series = {Informatik 2003 - Innovative Informatikanwendungen, Band 2 der Beitr{\"a}ge der 33. Jahrestagung der Gesellschaft f{\"u}r Informatik e.V. (GI), 29. September - 2. Oktober 2003 in Frankfurt am Main}, booktitle = {Informatik 2003 - Innovative Informatikanwendungen, Band 2 der Beitr{\"a}ge der 33. Jahrestagung der Gesellschaft f{\"u}r Informatik e.V. (GI), 29. September - 2. Oktober 2003 in Frankfurt am Main}, editor = {Dittrich, Klaus}, pages = {176 -- 181}, abstract = {Ausgehend von einer Betrachtung des Einflusses von InformatikerInnen und ihren Handlungsmustern auf Arbeitsprozesse und vor dem Hintergrund einer kritischen Auseinandersetzung mit bisherigen berufsethischen Leitlinien wollen wir einen neuen Ansatz wagen, {\"u}ber Informatik und Verantwortung nachzudenken. Eine Rekonstruktion des Begriffs Verantwortung bietet uns ein reichhaltiges begriffliches Instrumentarium zur Reflexion des Verh{\"a}ltnisses von Verantwortung und informatischer Praxis. Wir pl{\"a}dieren daf{\"u}r, dass informatisch Handelnde lernen m{\"u}ssen, ethische Probleme zu erkennen, implizite Annahmen von Arbeitskulturen zu durchschauen und ein Bewusstsein f{\"u}r die Ver{\"a}nderbarkeit dieser Arbeitskulturen entwickeln sollten. Zus{\"a}tzlich bedarf es kollektiver und rechtlicher Ver{\"a}nderungen der Rahmenbedingungen f{\"u}r verantwortliches Handeln.}, language = {de} } @inproceedings{WestnerFuhrmannWaasetal., author = {Westner, Markus and Fuhrmann, Thomas and Waas, Thomas and Skelton, David}, title = {Internationalization of a Computer Science Faculty}, series = {9th Annual International Conference on Computer Science Education: Innovation and Technology (CSEIT 2018), 2018, Singapore}, booktitle = {9th Annual International Conference on Computer Science Education: Innovation and Technology (CSEIT 2018), 2018, Singapore}, doi = {10.5176/2251-2195_CSEIT18.118}, pages = {33 -- 38}, abstract = {The paper at hand describes how a regional university of applied sciences tried to internationalize its learning and teaching environment. It describes the challenges encountered, the managerial approach taken, illustrates the implemented initiatives, and how effective they turned out. The results might be relevant to faculty staff in managerial positions at regional universities all over the world that face the challenge to internationalize their teaching and learning environment for the benefit of their domestic students.}, subject = {Internationalisierung}, language = {en} } @inproceedings{SkeltonWestner, author = {Skelton, David and Westner, Markus}, title = {International internships}, series = {Refereed Proceedings of the 3rd International Research Symposium on Cooperative and Work-Integrated Education, Stuttgart, Germany : 3rd - 27th of June, 2018, Stuttgart, Baden-Wurttemberg, Germany}, booktitle = {Refereed Proceedings of the 3rd International Research Symposium on Cooperative and Work-Integrated Education, Stuttgart, Germany : 3rd - 27th of June, 2018, Stuttgart, Baden-Wurttemberg, Germany}, editor = {Zegwaard, Karsten E. and Ford, Marty}, isbn = {978-0-473-46291-8}, pages = {193 -- 198}, abstract = {Students are increasingly considering expanding their cooperative experiences into the global environment. This paper investigates the experiences of students undertaking their internship capstone in other countries under the supervision of a partner institute and a participating industry sponsor. These experiences of German students interning in New Zealand (NZ), and NZ students interning in Germany offer an insight into the organisation required by the partner institutions and the comparative cultural and technical differences that these students have encountered. The international agreement between Ostbayerische Technische Hochschule (OTH) Regensburg, Germany, and the Eastern Institute of Technology (EIT), NZ, has already built a mutual framework of visiting lecturers teaching in each other's institutes, and a programme of hosting exchange students in each other's institutes. A natural progression of this partnership has now moved into the active recruitment and brokering of international internship opportunities for their respective final year Business and Information Technology (IT) students. The benefits are evident personally to the students, which are discussed in this paper, but there are also clear benefits for EIT and OTH in terms of marketing opportunities for prospective students and enriching the learning environments. This paper explores the challenges faced by the Schools of Business and Computing at EIT as it pioneers the first two years of establishing internship options for final year German exchange students within NZ, and matching final year EIT degree students to industry sponsors within Bavaria, a federal state of Germany. A qualitative approach was taken for this study with data acquired from internship students involved, the key organising lecturers from each institute, and industry sponsors from each country. A number of student, staff and industry representative interviews were conducted along with a cultural appraisal of relevant literature in the global education field. A further overview of the macro benefits for the partner institutes in terms of marketing, and programme enrichment is also part of the conclusion. The paper may be useful as a template for other institutes on developing international internship opportunities through global partners.}, subject = {Wirtschaftswissenschaftliches Studium}, language = {en} } @inproceedings{Weber, author = {Weber, Karsten}, title = {Ethische Leitlinien: inhaltlich oder prozedural?}, series = {Informatik 2003 - Innovative Informatikanwendungen, Band 2 der Beitr{\"a}ge der 33. Jahrestagung der Gesellschaft f{\"u}r Informatik e.V. (GI), 29. September - 2. Oktober 2003 in Frankfurt am Main}, booktitle = {Informatik 2003 - Innovative Informatikanwendungen, Band 2 der Beitr{\"a}ge der 33. Jahrestagung der Gesellschaft f{\"u}r Informatik e.V. (GI), 29. September - 2. Oktober 2003 in Frankfurt am Main}, editor = {Dittrich, Klaus}, publisher = {Gesellschaft f{\"u}r Informatik e.V.}, address = {Bonn}, pages = {188 -- 193}, abstract = {Der neue Entwurf der ethischen Leitlinien nimmt in der Pr{\"a}ambel Bezug auf die Allgemeine Erkl{\"a}rung der Menschenrechte der Vereinten Nationen; außerdem wird mit Artikel 11 die soziale Verantwortung von Informatikerinnen und Informatikern inhaltlich ausformuliert. Infrage steht nun, ob die Explizierung solcher moralischer Forderungen in den ethischen Leitlinien akzeptabel ist oder ob damit nicht deren M{\"o}glichkeiten {\"u}berdehnt werden. Anders ausgedr{\"u}ckt: Sollen die ethischen Leitlinien rein prozedural ausgerichtet sein oder stattdessen konkrete Zielvorgaben formuliert werden? Um diese Frage zu beantworten, werden zun{\"a}chst die genannten Alternativen der Formulierung dargestellt. Dem folgt eine kritische Auseinandersetzung mit dem neuen Artikel 11 und dem Bezug auf die Allgemeine Erkl{\"a}rung der Menschenrechte. Zuletzt werden Gr{\"u}nde und Bedingungen f{\"u}r die Akzeptabilit{\"a}t dieser und gegen eine Aufnahme weitergehender moralischer Forderungen genannt.}, language = {de} } @inproceedings{GrossVerkerkeDendorfer, author = {Gross, Simon and Verkerke, Gijsbertus Jacob and Dendorfer, Sebastian}, title = {Combined Experimental and Numerical Approach to Investigate Changes in Muscle Recruitment Pattern of the Back Muscles during Exhausting Exercise}, series = {World Congress Biomechanics Dublin, 2018}, booktitle = {World Congress Biomechanics Dublin, 2018}, abstract = {In recent years, musculoskeletal computation has become a widely used tool to investigate joint and muscle forces within the human body. However, the issue of muscle fatigue is not considered adequately in most models and is a challenging task. One aspect that needs to be examined is the interaction of muscles during an exhausting task. Therefore, an experimental study was designed to analyze the changes of back muscle recruitment pattern during such exercises. In this study 38 subjects (27 male, 11 female, height = 177±8.5 cm, weight = 74.0±13.6 kg) participated. Each subject had to perform three static and three dynamic exhausting exercises where the back muscles were loaded with subject specific forces using a dynamometer adapter especially designed for the trunk muscles. To collect the muscle activity, twelve surface electromyography sensors were applied on the back, and four on the abdominal muscles. Muscle activity and fatigue were analyzed by calculating the maximum voluntary contraction normalized signal and the median frequency. At first the fatigue of m. erector spinae and m. multifidi was analyzed, since these muscles carry the main load during the exercises. Subsequently the activity of the m. trapezius, m. rectus abdominis and m. obliquus externus were investigated to determine recruitment patterns. To gain more detailed information of these patterns a numerical model was built using the AnyBody Modeling System™. Analyzing the measurements, we can observe an increasing muscle activity during isokinetic exercises while the force is constant. Since the activity in the simulation is defined as the current force output divided by the strength of the muscle, the strength parameter was scaled down based on the measured data, assuming a linear force - activity correlation, and using a numerical algorithm considering the influence of cross talk. The results show, that changes in recruitment pattern can be divided into three major subgroups. Prior to total exhaustion, some of the subjects show additional activation of muscles in the trapezius region, while other subjects show an additional activation of abdominal muscles, increasing the intra-abdominal pressure which supports the spine. In the third group an activation in both regions can be observed. The numerical simulations show an increasing activity of abdominal muscles as well as muscles in the upper back. Especially the m. latissimus dorsi shows a significantly higher activity. The results lead to the conclusion that prior to total exhaustion, additional muscles are recruited to support the main muscles. It was shown that abdominal muscles are activated to support back muscles by pressurizing the trunk cavity to delay total exhaustion as long as possible. In conclusion, the results show that changes in muscle recruitment pattern need to be considered when introducing muscle fatigue to musculoskeletal models.}, language = {en} } @inproceedings{JungtaeublAurbachMelzneretal., author = {Jungt{\"a}ubl, Dominik and Aurbach, Maximilian and Melzner, Maximilian and Spicka, Jan and S{\"u}ß, Franz and Dendorfer, Sebastian}, title = {EMG-Based Validation of Musculoskeletal Models Considering Crosstalk}, series = {International Conference BIOMDLORE, June 28 - 30 2018, Białystok, Poland}, booktitle = {International Conference BIOMDLORE, June 28 - 30 2018, Białystok, Poland}, doi = {10.1109/BIOMDLORE.2018.8467211}, abstract = {BACKGROUND: Validation and verification of multibody musculoskeletal models sEMG is a difficult process because of the reliability of sEMG data and the complex relationship of muscle force and sEMG. OBJECTIVE: This work aims at comparing experimentally recorded and simulated muscle activities considering a numerical model for crosstalk. METHODS: For providing an experimentally derived reference data set, subjects were performing elevations of the arm, where the activities of the contemplated muscle groups were measured by sEMG sensors. Computed muscle activities were further processed and transformed into an artificial electromyographical signal, which includes a numerical crosstalk model. In order to determine whether the crosstalk model provides a better agreement with the measured muscle activities, the Pearson correlation coefficient has been computed as a qualitative way of assessing the curve progression of the data sets. RESULTS: The results show an improvement in the correlation coefficient between the experimental data and the simulated muscle activities when taking crosstalk into account. CONCLUSIONS: Although the correlation coefficient increased when the crosstalk model was utilized, it is questionable if the discretization of both, the crosstalk and the musculoskeletal model, is accurate enough.}, language = {en} } @inproceedings{SuessKubowitschVerkerkeetal., author = {S{\"u}ß, Franz and Kubowitsch, Simone and Verkerke, Gijsbertus Jacob and Dendorfer, Sebastian}, title = {Investigation of cognitive stress induced changes in spinal disc forces due to altered kinematics and muscle activity}, series = {World Congress Biomechanics, Dublin, 2018}, booktitle = {World Congress Biomechanics, Dublin, 2018}, language = {en} } @inproceedings{SuessKubowitschVerkerkeetal., author = {S{\"u}ß, Franz and Kubowitsch, Simone and Verkerke, Gijsbertus Jacob and Dendorfer, Sebastian}, title = {The influence of mental stress on spinal disc loading and muscle activity}, series = {23th Congress of the European Society of Biomechanics, Sevilla, Spain, 2017}, booktitle = {23th Congress of the European Society of Biomechanics, Sevilla, Spain, 2017}, language = {en} } @inproceedings{PillingSuessKubowitschetal., author = {Pilling, A. and S{\"u}ß, Franz and Kubowitsch, Simone and Dendorfer, Sebastian}, title = {Experimental workflow for determining psychological stress from physiological biosignals}, series = {Jahrestagung der BIOMEDIZINISCHEN TECHNIK und Dreil{\"a}ndertagung der MEDIZINISCHEN PHYSIK, Dresden, Germany, 2017}, booktitle = {Jahrestagung der BIOMEDIZINISCHEN TECHNIK und Dreil{\"a}ndertagung der MEDIZINISCHEN PHYSIK, Dresden, Germany, 2017}, language = {en} } @inproceedings{GrossVerkerkeDendorfer, author = {Gross, Simon and Verkerke, Gijsbertus Jacob and Dendorfer, Sebastian}, title = {Investigation of external load dependent static and dynamic muscle fatigue}, series = {23th Congress of the European Society of Biomechanics, Sevilla, Spain, 2017}, booktitle = {23th Congress of the European Society of Biomechanics, Sevilla, Spain, 2017}, language = {en} } @inproceedings{KubowitschSuessJansenetal., author = {Kubowitsch, Simone and S{\"u}ß, Franz and Jansen, Petra and Dendorfer, Sebastian}, title = {Comparison of dynamic muscular imbalances in back pain patients and healthy controls}, series = {World Congress Biomechanics Dublin, 2018}, booktitle = {World Congress Biomechanics Dublin, 2018}, language = {en} } @inproceedings{SeefriedAurbachWyssetal., author = {Seefried, C. and Aurbach, Maximilian and Wyss, C. and Dendorfer, Sebastian}, title = {Achilles tendon lengthening alters stresses in the growth plate}, series = {International Conference BIOMDLORE, June 28 - 30 2018, Białystok, Poland}, booktitle = {International Conference BIOMDLORE, June 28 - 30 2018, Białystok, Poland}, language = {en} } @inproceedings{WeberDendorferGrifkaetal., author = {Weber, Tim and Dendorfer, Sebastian and Grifka, Joachim and Weber, Markus and W{\"o}rner, Michael and Dullien, Silvia and Verkerke, Gijsbertus Jacob and Renkawitz, Tobias}, title = {Verbessert die computerassistierte Femur First Operationstechnik f{\"u}r die H{\"u}ftendoprothetik den muskuloskelettalen Lastfall auf das H{\"u}ftgelenk?}, series = {DKOU 2015, Deutscher Kongress f{\"u}r Orthop{\"a}die und Unfallchirurgie 2015}, booktitle = {DKOU 2015, Deutscher Kongress f{\"u}r Orthop{\"a}die und Unfallchirurgie 2015}, language = {de} } @inproceedings{WeberRenkawitzGrifkaetal., author = {Weber, Tim and Renkawitz, Tobias and Grifka, Joachim and Bulstra, Sjoerd K. and Verkerke, Gijsbertus Jacob and Dendorfer, Sebastian}, title = {The musculoskeletal load scenario of computer-assisted Femur-First THR up to one year after surgery}, series = {VI International Conference on Computational Bioengineering, Barcelona, Sept. 2015}, booktitle = {VI International Conference on Computational Bioengineering, Barcelona, Sept. 2015}, language = {en} } @inproceedings{GrossSuessVerkerkeetal., author = {Gross, Simon and S{\"u}ß, Franz and Verkerke, Gijsbertus Jacob and Dendorfer, Sebastian}, title = {Simulating fatigue in musculoskeletal models using surface electromyography, ECCOMAS Congress, Crete, Greece, 201}, series = {ECCOMAS Congress, Crete, Greece, 2016}, booktitle = {ECCOMAS Congress, Crete, Greece, 2016}, language = {en} } @inproceedings{KubowitschSuessJansenetal., author = {Kubowitsch, Simone and S{\"u}ß, Franz and Jansen, Petra and Dendorfer, Sebastian}, title = {Muscular imbalances during experimentally induced stress}, series = {23th Congress of the European Society of Biomechanics, Sevilla, Spain, 2017}, booktitle = {23th Congress of the European Society of Biomechanics, Sevilla, Spain, 2017}, language = {en} } @inproceedings{SuessKubowitschVerkerkeetal., author = {S{\"u}ß, Franz and Kubowitsch, Simone and Verkerke, Gijsbertus Jacob and Dendorfer, Sebastian}, title = {The influence of stress on spinal loading}, series = {ESEM webconference, Dez. 2017}, booktitle = {ESEM webconference, Dez. 2017}, language = {en} } @inproceedings{DendorferKubowitsch, author = {Dendorfer, Sebastian and Kubowitsch, Simone}, title = {The interaction of mental stress and biomechanics}, series = {Health Technology Triangle, Weiden, 2016}, booktitle = {Health Technology Triangle, Weiden, 2016}, language = {en} } @inproceedings{Dendorfer, author = {Dendorfer, Sebastian}, title = {Virtuelle Menschmodelle - von der Bewegung zur Belastung}, series = {Medbo Bezirksklinikum Regensburg, April 2016}, booktitle = {Medbo Bezirksklinikum Regensburg, April 2016}, language = {de} } @inproceedings{Dendorfer, author = {Dendorfer, Sebastian}, title = {Biomechanik des Alterns}, series = {Kolpingfortbildung Lambach, April 2016}, booktitle = {Kolpingfortbildung Lambach, April 2016}, language = {de} } @inproceedings{WeberRenkawitzBulstraetal., author = {Weber, Tim and Renkawitz, Tobias and Bulstra, Sjoerd K. and Grifka, Joachim and Verkerke, Gijsbertus Jacob and Dendorfer, Sebastian}, title = {Biomechanics of computer-assisted vs. conventional THR after one year follow up}, series = {XXV Congress of the International Society of Biomechanics, Glasgow, UK, 12th-16th July 2015}, booktitle = {XXV Congress of the International Society of Biomechanics, Glasgow, UK, 12th-16th July 2015}, language = {en} } @inproceedings{IgnasiakDendorferFerguson, author = {Ignasiak, Dominika and Dendorfer, Sebastian and Ferguson, Stephen J.}, title = {Thoracolumbar spine model with articulated rigcage for the prediction of dynamic spinal loading}, series = {International Workshop on Spine Loading and Deformation: From Loading to Recovery, 2-4 July 2015, Julius Wolff Institute, Charit{\´e}-Universitatsmedizin Berlin, Germany}, booktitle = {International Workshop on Spine Loading and Deformation: From Loading to Recovery, 2-4 July 2015, Julius Wolff Institute, Charit{\´e}-Universitatsmedizin Berlin, Germany}, language = {en} } @inproceedings{BillingGoetzWeberetal., author = {Billing, A. and G{\"o}tz, J. and Weber, Tim and Dendorfer, Sebastian}, title = {Positionsanalyse von winkelstabilen Plattenosteosynthesesystemen zur Versorgung von Metatarsalfrakturen mit Hilfe von patientenspezifischen biomechanischen Modellen}, series = {Vereinigung S{\"u}ddeutscher Orthop{\"a}den und Unfallchirurgen Jahrestagung 2015, Baden-Baden, Germany}, booktitle = {Vereinigung S{\"u}ddeutscher Orthop{\"a}den und Unfallchirurgen Jahrestagung 2015, Baden-Baden, Germany}, language = {de} } @inproceedings{WeberDendorferBulstraetal., author = {Weber, Tim and Dendorfer, Sebastian and Bulstra, Sjoerd K. and Grifka, Joachim and Verkerke, Gijsbertus Jacob and Renkawitz, Tim}, title = {Navigated Femur First Total Hip Arthroplasty leads to improved Biomechanical Outcome after surgery}, series = {ORS annual meeting, Las Vegas, USA, 2015}, booktitle = {ORS annual meeting, Las Vegas, USA, 2015}, language = {en} } @inproceedings{PenzkoferGrechenigKujatetal., author = {Penzkofer, Rainer and Grechenig, S. and Kujat, Richard and Angele, Peter and Dendorfer, Sebastian}, title = {Biomechanical comparison of the dorsal femur condyles and the iliac crest in terms of failure behavior}, series = {XXV Congress of the International Society of Biomechanics, Glasgow, UK, 12th-16th July 2015}, booktitle = {XXV Congress of the International Society of Biomechanics, Glasgow, UK, 12th-16th July 2015}, language = {en} } @inproceedings{WeberDendorferBulstraetal., author = {Weber, Tim and Dendorfer, Sebastian and Bulstra, Sjoerd K. and Verkerke, Gijsbertus Jacob and Renkawitz, Tobias}, title = {Musculoskeletal modeling for orthopedic surgery - Applications and chances}, series = {Orthopedics meets Engineering, Regensburg, 2015}, booktitle = {Orthopedics meets Engineering, Regensburg, 2015}, language = {en} } @inproceedings{PutzerDendorfer, author = {Putzer, Michael and Dendorfer, Sebastian}, title = {Sensitivity of lumbar spine loading to anatomical parameters}, series = {International Workshop on Spine Loading and Deformation: From Loading to Recovery, 2-4 July 2015, Julius Wolff Institute, Charit{\´e}-Universitatsmedizin Berlin, Germany}, booktitle = {International Workshop on Spine Loading and Deformation: From Loading to Recovery, 2-4 July 2015, Julius Wolff Institute, Charit{\´e}-Universitatsmedizin Berlin, Germany}, language = {en} } @inproceedings{SuessPutzerDendorfer, author = {S{\"u}ß, Franz and Putzer, Michael and Dendorfer, Sebastian}, title = {Numerische und experimentelle Untersuchungen an der Wirbels{\"a}ule}, series = {Forschungssymposium Bad Abbach, Germany, 2015}, booktitle = {Forschungssymposium Bad Abbach, Germany, 2015}, language = {de} } @inproceedings{Dendorfer, author = {Dendorfer, Sebastian}, title = {Mechanobiology - Impact on regeneration and degradation}, series = {Translations in Regenerative Medicine, TIRM and FIFA Symposium, Regensburg, 2015}, booktitle = {Translations in Regenerative Medicine, TIRM and FIFA Symposium, Regensburg, 2015}, language = {en} } @inproceedings{AlMunajjedNolteRasmussenetal., author = {Al-Munajjed, Amir Andreas and Nolte, Daniel and Rasmussen, John and Dendorfer, Sebastian}, title = {Force distribution in the foot during braking - a musculoskeletal approach}, series = {Human Modeling Symposium 2014, Munich, Germany}, booktitle = {Human Modeling Symposium 2014, Munich, Germany}, abstract = {High loads can appear in the individual joints of the human foot while the driver uses the pedals, in particular, during breaking. Measuring these internal forces is very difficult or almost impossible; therefore, advanced models are necessary to perform musculoskeletal simulations. The objective of this investigation was to see what loads are acting in the individual foot joints from the phalanges to calcaneus and talus during different brake scenarios. The Glasgow-Maastricht AnyBody Foot Model with 26 separate segments, connected by joints, ligaments and muscles was used inside the AnyBody Modeling System to compute individual mid foot joint loads. The amount, the direction of the force and additionally also the load insertion point was varied for several simulations. Figure 1: Seated musculoskeletal body model with applied brake force and forces for the lateral, intermediate and medial cuneiform-navicular joint for two different brake forces. The simulation showed that for the different brake scenarios, different muscles will be activated in the human and therefore different loads are apply in the fore-and mid-foot, respectively. The torso of the subject was assumed to be fixed in the seat. Further studies are ongoing to simulate the seat as an elastic element that allows different H-point locations according to the different loadings in the foot from the brake pedal using a new inverse dynamics analysis method called force-dependent kinematics.}, language = {en} } @inproceedings{WeberDendorferBulstraetal., author = {Weber, Tim and Dendorfer, Sebastian and Bulstra, Sjoerd K. and Verkerke, Gijsbertus Jacob and Renkawitz, Tobias}, title = {Biomechanical Outcome after computer-assisted vs. Conventional THR}, series = {ANSYS Conference \& 32th CADFEM Users' Meeting 2014, 04.-06. Juni, N{\"u}rnberg}, booktitle = {ANSYS Conference \& 32th CADFEM Users' Meeting 2014, 04.-06. Juni, N{\"u}rnberg}, language = {en} } @inproceedings{PutzerPenzkoferEhrlichetal., author = {Putzer, Michael and Penzkofer, Rainer and Ehrlich, Ingo and Rasmussen, John and Gebbeken, Norbert and Dendorfer, Sebastian}, title = {Musculoskeletal simulations to investigate the influence of vertebral geometrical parameters on lumbar spine loading}, series = {7th World Congress of Biomechanics, Boston, United States, 04/07/14 -11/07/14}, booktitle = {7th World Congress of Biomechanics, Boston, United States, 04/07/14 -11/07/14}, language = {de} } @inproceedings{StrieglKujatDendorfer, author = {Striegl, B. and Kujat, Richard and Dendorfer, Sebastian}, title = {Quantitative analysis of cartilage surface by confocal laser scanning microscopy}, series = {Biomedizinische Technik}, volume = {59}, booktitle = {Biomedizinische Technik}, number = {s1-A}, doi = {10.1515/bmt-2014-4012}, pages = {24}, language = {en} } @inproceedings{PutzerGalibarovDendorfer, author = {Putzer, Michael and Galibarov, Pavel E. and Dendorfer, Sebastian}, title = {Influence of vertebral parameters on lumbar spine loading}, series = {Pre-meeting SpineFX, Eurospine 2013, Liverpool, UK}, booktitle = {Pre-meeting SpineFX, Eurospine 2013, Liverpool, UK}, language = {en} } @inproceedings{DendorferPenzkofer, author = {Dendorfer, Sebastian and Penzkofer, Rainer}, title = {Experimentelle Untersuchung der Belastungen im Kopf beim Treten}, series = {Fachsymposium "Treten gegen den Kopf", April 2013, N{\"u}rnberg}, booktitle = {Fachsymposium "Treten gegen den Kopf", April 2013, N{\"u}rnberg}, language = {de} } @inproceedings{Dendorfer, author = {Dendorfer, Sebastian}, title = {Einf{\"u}hrung in die Mechanik}, series = {Biomechanik Workshop, Klinikum Bad Abbach, Nov. 2013}, booktitle = {Biomechanik Workshop, Klinikum Bad Abbach, Nov. 2013}, language = {de} } @inproceedings{Dendorfer, author = {Dendorfer, Sebastian}, title = {Innovationen in der Medizintechnik}, series = {Oberpfalztag Weiherhammer, Nov. 2013}, booktitle = {Oberpfalztag Weiherhammer, Nov. 2013}, language = {de} } @inproceedings{WeberStezowskiDullienetal., author = {Weber, Tim and Stezowski, P. and Dullien, Silvia and Dendorfer, Sebastian}, title = {Eine biomechanische Bewertung verschiedener Belastungsszenarios nach der Implantierung einer H{\"u}ft-Totalendoprothese}, series = {89. Jahrestagung der Vereinigung der Bayerischen Chirurgen e.V., 25. - 27. Juli 2012, Regensburg}, booktitle = {89. Jahrestagung der Vereinigung der Bayerischen Chirurgen e.V., 25. - 27. Juli 2012, Regensburg}, language = {de} } @inproceedings{WeberDullienPutzeretal., author = {Weber, Tim and Dullien, Silvia and Putzer, Michael and Dendorfer, Sebastian and Renkawitz, Tobias}, title = {Biomechanical outcome after computer-assisted vs. conventional THR - study concept and preliminary gait analysis results}, series = {GAMMA Workshop, Hannover, 2012}, booktitle = {GAMMA Workshop, Hannover, 2012}, language = {en} } @inproceedings{WeberStezowskiDullienetal., author = {Weber, Tim and Stezowski, P. and Dullien, Silvia and Putzer, Michael and Dendorfer, Sebastian}, title = {Eine biomechanische Bewertung verschiedener Belastungsszenarien nach Implantierung einer H{\"u}ft-Totalendoprothese}, series = {GAMMA Workshop, Hannover, 2012}, booktitle = {GAMMA Workshop, Hannover, 2012}, language = {de} } @inproceedings{WeberDendorferRenkawitzetal., author = {Weber, Tim and Dendorfer, Sebastian and Renkawitz, Tobias and Dullien, Silvia and Grifka, Joachim}, title = {Clinical gait analysis combined with musculoskeletal modelling - coding a new generation of evaluation instruments}, series = {Deutsche Gesellschaft f{\"u}r Biomechanik, Murnau, 2011}, booktitle = {Deutsche Gesellschaft f{\"u}r Biomechanik, Murnau, 2011}, language = {en} } @inproceedings{SpreiterGalibarovDendorferetal., author = {Spreiter, G. and Galibarov, Pavel E. and Dendorfer, Sebastian and Ferguson, Stephen J.}, title = {Influence of kyphosis on spinal loading}, series = {10th International Symposium Computer Methods in Biomechanics and Biomedical Engineering (CMBBE) Meeting, 11. - 14. April 2012, Berlin}, booktitle = {10th International Symposium Computer Methods in Biomechanics and Biomedical Engineering (CMBBE) Meeting, 11. - 14. April 2012, Berlin}, language = {en} } @inproceedings{PutzerWeberDendorfer, author = {Putzer, Michael and Weber, Tim and Dendorfer, Sebastian}, title = {Design studies on hip prosthesis using patient specific data}, series = {Simpleware Users meeting, November 9th 2011, Bristol, UK}, booktitle = {Simpleware Users meeting, November 9th 2011, Bristol, UK}, language = {en} } @inproceedings{Dendorfer, author = {Dendorfer, Sebastian}, title = {The effect of multifidus muscles atrophy following disc herniation on disc loading}, series = {Deutsche Gesellschaft f{\"u}r Biomechanik, Murnau, 2011}, booktitle = {Deutsche Gesellschaft f{\"u}r Biomechanik, Murnau, 2011}, language = {en} } @inproceedings{GalibarovAlMunajjedDendorferetal., author = {Galibarov, Pavel E. and Al-Munajjed, Amir Andreas and Dendorfer, Sebastian and Christensen, Soeren Toerholm and Rasmussen, John}, title = {The effect of varying the stiffness of spinal fusion devices on the adjacent levels using multibody dynamics simulation}, series = {Orthopaedic Proceedings}, volume = {94-B}, booktitle = {Orthopaedic Proceedings}, number = {SUPP_XL01 Sep 2012}, pages = {2}, abstract = {INTRODUCTION Several clinical studies demonstrated long-term adjacent-level effects after implantation of spinal fusion devices[1]. These effects have been reported as adjacent joint degeneration and the development of new symptoms correlating with adjacent segment degeneration[2] and the trend has therefore gone to motion preservation devices; however, these effects have not been understood very well and have not been investigated thoroughly[3]. The aim of this study is to investigate the effect of varying the stiffness of spinal fusion devices on the adjacent vertebral levels. Disc forces, moments and facet joint forces were analyzed. METHODS The AnyBody Modeling System was used to compute the in-vivo muscle and joint reaction forces of a musculoskeletal model. The full body model used in this study consists of 188 muscle fascicles in the lumbar spine and more than 1000 individual muscle branches in total. The model has been proposed by de Zee et al.[3], validated by Rasmussen et al.[4] and by Galibarov et al.[5]. The new model[5] determines the individual motions between vertebrae based on the equilibrium between forces acting on the vertebrae from muscles and joints and the passive stiffness in disks and ligaments, figure 1a. An adult of 1.75 m and 75 kg with a spinal implant in L4L5 was modeled. This model was subjected to a flexion-extension motion using different elastic moduli to analyze and compare to a non-implanted scenario. The analyzed variables were vertebral motion, the disc reaction forces and moments, as well as facet joint forces in the treated and the adjacent levels: L2L3, L3L4, L4L5 and L5-Sacrum. RESULTS When introducing a spinal fusion device in the L4L5 joint the reaction forces and moments decreased in this joint with stiffer devices leading to lower joint loads. However, in the adjacent joints, L3L4 and L5Sacrum, an increase was observed when implanting stiffer devices. Similar trends could be found for the L2L3 joint. The loads in the facet joints showed the same trends. While introducing a spinal fusion device reduced the facet joint forces in the treated joint, the loads in the adjacent facet joints were increased according to the stiffness of the implanted device, figure 1b. DISCUSSION While the treated disc joint showed reduced motion and loads, the adjacent levels demonstrated a significant increase. In particular, the increased facet joint forces in the adjacent levels can lead to adjacent level facet pain or accelerated facet joint degeneration. Introducing a device resulted in preventing facet contact and therefore facet joint loads, even using the device with the lowest stiffness. CONCLUSION The presented model shows that clinical complications such as facet joint degeneration in adjacent levels after implantation of spinal fusion device are consistent with the change in the mechanical-stimulus distribution in the system.}, language = {en} } @inproceedings{GalibarovDendorferChristensen, author = {Galibarov, Pavel E. and Dendorfer, Sebastian and Christensen, Soeren Toerholm}, title = {On modelling spine curvature dependent on muscular and external forces in multibody dynamics system}, series = {International Society of Biomechanics (ISB), 13th congress, 2011, Brussels, Belgium}, booktitle = {International Society of Biomechanics (ISB), 13th congress, 2011, Brussels, Belgium}, pages = {2}, abstract = {This paper presents a computational approach for investigating effect of muscular and external forces on curvature of the lumbar spine. Multibody dynamics system is used to compute the lumbar spine curvature using a force-dependent kinematics facility, e.g. this method allows releasing some degrees of freedom in order to be computed based on the current load configuration.}, language = {en} } @inproceedings{RasmussenBichlerChristensenetal., author = {Rasmussen, John and Bichler, R. and Christensen, Soeren Toerholm and Wirix-Speetjens, Roel and Dendorfer, Sebastian and Renkawitz, Tobias}, title = {Subject-specific Musculoskeletal Simulation of Hip Dislocation Risk in Activities of Daily Living}, series = {Proceedings of the 2011 ORS Annual Meeting, Long Beach, CA.}, booktitle = {Proceedings of the 2011 ORS Annual Meeting, Long Beach, CA.}, number = {Paper No. 306}, language = {en} } @inproceedings{RobieDendorferRasmussenetal., author = {Robie, Bruce and Dendorfer, Sebastian and Rasmussen, John and Christensen, Soeren Toerholm}, title = {Axial Rotation Requires Greatest Load in Multifidus Muscle - Potential Association with Low Back Pain?}, series = {Annual Meeting of the AANS/CNS Section on Disorders of the Spine and Peripheral Nerves, 2011, Phoenix, Arizona}, booktitle = {Annual Meeting of the AANS/CNS Section on Disorders of the Spine and Peripheral Nerves, 2011, Phoenix, Arizona}, language = {en} } @inproceedings{DorschnerMeusslingSentpali, author = {Dorschner, Stephan and Meussling-Sentpali, Annette}, title = {"Alles hat seine Zeit" - Aufbruch zu einem neuen Pflegeverst{\"a}ndnis}, series = {"Alles hat seine Zeit ..." - Aufbruch zu einem neuen Pflegeverst{\"a}ndnis: Tagungsband zum 2. Christlichen Pflegekongress vom 30. Oktober bis 1. November in Bingen}, booktitle = {"Alles hat seine Zeit ..." - Aufbruch zu einem neuen Pflegeverst{\"a}ndnis: Tagungsband zum 2. Christlichen Pflegekongress vom 30. Oktober bis 1. November in Bingen}, editor = {Dorschner, Stephan and Meussling-Sentpali, Annette}, publisher = {Jenaer Akademische Verlagsgesellschaft}, address = {Jena}, isbn = {978-3-9812008-3-6}, pages = {187 -- 207}, language = {de} } @inproceedings{DendorferRasmussenChristensenetal., author = {Dendorfer, Sebastian and Rasmussen, John and Christensen, Soeren Toerholm and Robie, Bruce}, title = {The Effect of Spinal Disc Herniation on Multifidus Muscles}, series = {56th Orthopaedic Research Society Meeting, New Orleans, USA, 2010}, booktitle = {56th Orthopaedic Research Society Meeting, New Orleans, USA, 2010}, language = {en} } @inproceedings{GalibarovDendorferRasmussen, author = {Galibarov, Pavel E. and Dendorfer, Sebastian and Rasmussen, John}, title = {Two Computational Models of the Lumbar Spine:}, series = {Proceedings of the 2011 ORS Annual Meeting, Long Beach, CA, vol. Marie Curie Initial Training Network "SpineFX"}, booktitle = {Proceedings of the 2011 ORS Annual Meeting, Long Beach, CA, vol. Marie Curie Initial Training Network "SpineFX"}, language = {en} } @inproceedings{HornerDendorferKiisetal., author = {Horner, Marc and Dendorfer, Sebastian and Kiis, Arne and Lawrenchuk, Mike and Verma, Gunjan}, title = {A Patient based simulation workflow for orthopedic device design and analysis}, series = {SBC Ortho Workshop, June 2011}, booktitle = {SBC Ortho Workshop, June 2011}, language = {en} } @inproceedings{AndersendeZeeDendorferetal., author = {Andersen, Michael Skipper and de Zee, Mark and Dendorfer, Sebastian and MacWilliams, Bruce and Rasmussen, John}, title = {Validation of a detailed lower extremity model based on the Klein Horsman data set}, series = {Proceedings of the 12th International Symposium on Computer Simulation in Biomechanics (ISB 2009), July 2nd - 4th 2009, Cape Town, South Africa}, booktitle = {Proceedings of the 12th International Symposium on Computer Simulation in Biomechanics (ISB 2009), July 2nd - 4th 2009, Cape Town, South Africa}, pages = {27 -- 28}, language = {en} } @inproceedings{DorschnerMeusslingSentpali, author = {Dorschner, Stephan and Meussling-Sentpali, Annette}, title = {"Christlich pflegen in unserer Gesellschaft?"}, series = {Elisabeth bewegt - Christen in der Pflege: Tagungsband zum 1. Christlichen Pflegekongress vom 30. Oktober bis 1. November 2007 in Eisenach}, booktitle = {Elisabeth bewegt - Christen in der Pflege: Tagungsband zum 1. Christlichen Pflegekongress vom 30. Oktober bis 1. November 2007 in Eisenach}, editor = {Dorschner, Stephan and Meussling-Sentpali, Annette}, publisher = {Jenaer Akademische Verlagsgesellschaft}, address = {Jena}, isbn = {9783981200805}, pages = {20 -- 37}, language = {de} } @inproceedings{RobieRasmussenChristensenetal., author = {Robie, Bruce and Rasmussen, John and Christensen, Soeren Toerholm and Dendorfer, Sebastian}, title = {Herniation Induces 55\% Increase in Load of Key Stabilizing Muscle - Impact on Herniation Treatment Devices?}, series = {Spine Arthoplasty Society Meeting, New Orleans, 2010}, booktitle = {Spine Arthoplasty Society Meeting, New Orleans, 2010}, language = {en} } @inproceedings{DendorferCarbesRasmussen, author = {Dendorfer, Sebastian and Carbes, S. and Rasmussen, John}, title = {The influence of muscle forces on biomechanical fracture fixation simulations - from in-vivo forces to tissue strains}, series = {World Congress on Medical Physics and Biomedical Engineering, 7 - 12, 2009, Munich}, booktitle = {World Congress on Medical Physics and Biomedical Engineering, 7 - 12, 2009, Munich}, language = {en} } @inproceedings{DendorferRasmussen, author = {Dendorfer, Sebastian and Rasmussen, John}, title = {The influence of in-vivo muscle forces on the stress distribution in a vertebral body during activities of daily living}, series = {Eurospine Warsaw, Poland 2009}, booktitle = {Eurospine Warsaw, Poland 2009}, language = {en} } @inproceedings{Dendorfer, author = {Dendorfer, Sebastian}, title = {How much iron to pump? The determination of muscle forces for activities of daily living}, series = {DGU, Berlin, 2008}, booktitle = {DGU, Berlin, 2008}, language = {en} } @inproceedings{SeebauerJahnMottok, author = {Seebauer, Stefan and Jahn, Sabrina and Mottok, J{\"u}rgen}, title = {Learning from Escape Rooms? A Study Design Concept Measuring the Effect of a Cryptography Educational Escape Room}, series = {2020 IEEE Global Engineering Education Conference (EDUCON): 27-30 April 2020, Porto, Portugal}, booktitle = {2020 IEEE Global Engineering Education Conference (EDUCON): 27-30 April 2020, Porto, Portugal}, doi = {10.1109/EDUCON45650.2020.9125333}, pages = {1684 -- 1685}, abstract = {Experts predict that more IT-Security specialists will be needed in the coming years, but in current higher education in engineering disciplines, this topic is hardly addressed. Newer learning methods such as game-based learning (GBL) are enjoying an increasing popularity as their improvement in the education of subject specific topics can be proven by a variety of studies. We chose Educational Escape Rooms (EduER) as a GBL-tool to impart IT-Security in higher education of engineers. In our Escape Room (ER), the students try to solve puzzles and riddles with learned knowledge on the emphasis of cryptography. This paper first deals with a brief introduction to GBL and EduERs, followed by the design of our ER concept, containing different tasks with focus on the topic of cryptography. The tasks cover different cryptographic methods and hash algorithms, e.g. AES, RSA, SHA3. Afterwards the experimental study is presented. The study of the EduER was carried out with students from the bachelor's program in Electrical Engineering and Information Technology at the OTH Regensburg. The participants were divided into three groups of 5 to 8 persons each. They received a briefing with important information, followed by the ER execution, a debriefing afterwards and an exam-like evaluation sheet to test their learned knowledge. Finally, first basic results are presented.}, language = {en} } @inproceedings{KloppGoldVeerkampAbkeetal., author = {Klopp, Marco and Gold-Veerkamp, Carolin and Abke, J{\"o}rg and Borgeest, Kai and Reuter, Rebecca and Jahn, Sabrina and Mottok, J{\"u}rgen and Sedelmaier, Yvonne and Lehmann, Alexander and Landes, Dieter}, title = {Totally Different and yet so Alike: Three Concepts to Use Scrum in Higher Education}, series = {Proceedings of the 4th European Conference on Software Engineering Education (ECSEE '20): June 2020, Seeon/Bavaria, Germany}, booktitle = {Proceedings of the 4th European Conference on Software Engineering Education (ECSEE '20): June 2020, Seeon/Bavaria, Germany}, doi = {10.1145/3396802.3396817}, pages = {12 -- 21}, abstract = {Software process models are important in software projects in order to give the work of a project guidelines or a framework. However, teaching process models in higher education seems to be quite challenging. This has to do with the fact that undergraduates have no experience with projects in which process models are used. The theoretical mediation of process models is initially on a very abstract level. For this reason, we chose to combine two didactic approaches, namely problem-based learning and project work. Various traditional plan-driven process models have been expanded in courses in Software Engineering with agile process models. The Scrum Framework is the focus of consideration of this paper. Three Universities of Applied Sciences which cooperate in the EVELIN project focused on Scrum as a process model and integrated it into their teaching. Since the respective concepts of implementation differ, they should be presented and compared in this article to presents some practice approaches. The goal of this presentation of is a uniform evaluation in order to obtain insights from different perspectives. This comparison can draw conclusions for possible necessary improvements of the respective concepts.}, language = {en} } @inproceedings{JahnMottok, author = {Jahn, Sabrina and Mottok, J{\"u}rgen}, title = {Work in Progress: Towards an Academic Secure Software Engineering Curriculum for Engineers}, series = {2020 IEEE Global Engineering Education Conference (EDUCON): 27-30 April 2020, Porto, Portugal}, booktitle = {2020 IEEE Global Engineering Education Conference (EDUCON): 27-30 April 2020, Porto, Portugal}, doi = {10.1109/EDUCON45650.2020.9125210}, pages = {1713 -- 1717}, abstract = {In the age of the Internet of Things, it is becoming increasingly important to integrate knowledge about the development of secure systems (Secure Software Engineering) into academic teaching. However, teaching IT Security and Secure Software Engineering to non-computer scientists is rare. Therefore, we focus our research on the integration of IT Security into software engineering education of non-computer scientists, particularly electrical engineers, by means of inductive teaching- and learning-arrangements. After collecting students' preconceptions of IT Security and Secure Software Engineering in prior work, this paper now contributes with a first mapping of these preconceptions with corresponding learning content as well as suitable inductive teaching methods to be able to create new lecture and exercise units and improve academic learning and teaching in both areas.}, language = {en} } @inproceedings{Haug, author = {Haug, Sonja}, title = {J{\"u}dische Zuwanderer in Deutschland}, series = {Workshop des Referats Migrations- und Integrationsforschung, 21.4.2005, N{\"u}rnberg}, booktitle = {Workshop des Referats Migrations- und Integrationsforschung, 21.4.2005, N{\"u}rnberg}, organization = {Bundesamt f{\"u}r Migration und Fl{\"u}chtlinge}, language = {de} } @inproceedings{ScornaAltenbuchnerHaugetal., author = {Scorna, Ulrike and Altenbuchner, Amelie and Haug, Sonja and Mohr, Christa and Weber, Karsten}, title = {Der Einfluss von pflegerischer Fachberatung und Onlineberatung auf die Therapietreue (Compliance) bei der Behandlung Multipler Sklerose (MS)}, series = {2. OTH Clusterkonferenz, Tagungsband}, booktitle = {2. OTH Clusterkonferenz, Tagungsband}, organization = {OTH Regensburg und OTH Amberg-Weiden}, pages = {61 -- 66}, language = {de} } @inproceedings{Weber, author = {Weber, Karsten}, title = {Informationsnachhaltigkeit. Vom schwierigen Umgang mit Informationsg{\"u}tern}, series = {Wissen - Wissenschaft - Organisation. Proceedings der 12. Tagung der Deutschen Sektion der Internationalen Gesellschaft f{\"u}r Wissensorganisation ; Bonn, 19. bis 21. Oktober 2009}, booktitle = {Wissen - Wissenschaft - Organisation. Proceedings der 12. Tagung der Deutschen Sektion der Internationalen Gesellschaft f{\"u}r Wissensorganisation ; Bonn, 19. bis 21. Oktober 2009}, editor = {Ohly, Heinz Peter}, publisher = {Ergon}, address = {W{\"u}rzburg}, pages = {19 -- 31}, language = {de} } @inproceedings{Weber, author = {Weber, Karsten}, title = {Computersimulationen im Entdeckungszusammenhang}, series = {Kreativit{\"a}t. Proceedings des XX. Deutschen Kongresses f{\"u}r Philosophie}, booktitle = {Kreativit{\"a}t. Proceedings des XX. Deutschen Kongresses f{\"u}r Philosophie}, editor = {Abel, G.}, publisher = {Universit{\"a}tsverlag der TU Berlin}, address = {Berlin}, pages = {8}, language = {de} } @inproceedings{Weber, author = {Weber, Karsten}, title = {Wer bestimmt {\"u}ber den Tod? Interventionsrechtete von Familienangeh{\"o}rigen und anderen Personen}, series = {Familie versus Patientenautonomie? Zur Rolle der Familie bei Behandlungsentscheidungen ; Tagungsband der Taunus Winter School}, booktitle = {Familie versus Patientenautonomie? Zur Rolle der Familie bei Behandlungsentscheidungen ; Tagungsband der Taunus Winter School}, editor = {Roth{\"a}rmel, Sonja and Schmidt, K.W. and Wolfslast, G.}, publisher = {Haag + Herchen}, address = {Frankfurt am Main}, isbn = {978-3-89846-436-9}, language = {de} } @inproceedings{Fuhrmann, author = {Fuhrmann, Thomas}, title = {Let the students publish}, series = {IEEE International Conference on Teaching, Assessment and Learning for Engineering (TALE), 26-29 August 2013, Bali Dynasty Resort, Kuta, Indonesia}, booktitle = {IEEE International Conference on Teaching, Assessment and Learning for Engineering (TALE), 26-29 August 2013, Bali Dynasty Resort, Kuta, Indonesia}, publisher = {IEEE}, isbn = {978-1-4673-6355-6}, doi = {10.1109/TALE.2013.6654515}, abstract = {In technical study programs on the bachelor level the focus is mainly directed on the scientific education in theory and practice. Publication is usually started during the PhD phase when students write their first scientific papers. During the last years some very successful projects were made at the university of applied sciences Regensburg to motivate bachelor students doing their first own small publications. The results of these projects are presented in this paper and ideas how students can publish are given.}, language = {en} } @inproceedings{AltenbuchnerWeberFuchs, author = {Altenbuchner, Amelie and Weber, Karsten and Fuchs, Dominik}, title = {N{\"u}tzlichkeit und Nutzung}, series = {Assistive Technik f{\"u}r selbstbestimmtes Wohnen, 6. Ambient Medicine® Forum 19.-20. Februar 2019}, booktitle = {Assistive Technik f{\"u}r selbstbestimmtes Wohnen, 6. Ambient Medicine® Forum 19.-20. Februar 2019}, editor = {Friedrich, Petra and Fuchs, Dominik}, publisher = {Cuvillier}, address = {G{\"o}ttingen}, pages = {149 -- 156}, subject = {AAL-Technik}, language = {de} } @inproceedings{DrueekeHaugKelleretal., author = {Dr{\"u}eke, Ricarda and Haug, Sonja and Keller, Werner and Weber, Karsten}, title = {Verhalten und Einstellungen zum Mobiltelefonieren}, series = {Informatik 2007 - Informatik trifft Logistik, Band 1 der Proceedings zur 37. Jahrestagung der Gesellschaft f{\"u}r Informatik e.V. (GI); 24.-27. September 2007 in Bremen}, booktitle = {Informatik 2007 - Informatik trifft Logistik, Band 1 der Proceedings zur 37. Jahrestagung der Gesellschaft f{\"u}r Informatik e.V. (GI); 24.-27. September 2007 in Bremen}, editor = {Koschke, Rainer}, publisher = {Gesellschaft f{\"u}r Informatik e. V.}, address = {Bonn}, isbn = {978-3-88579-203-1}, pages = {354 -- 358}, language = {de} } @inproceedings{MelznerEngelhardtHavelkovaetal., author = {Melzner, Maximilian and Engelhardt, Lucas and Havelkova, Leonard and Simon, Ulrich and Dendorfer, Sebastian}, title = {A new musculoskeletal AnyBody detailed hand model validated by electromyography}, series = {16th International Symposium on Computer Methods in Biomechanics and Biomedical Engineering (CMBBE) 2019, New York City, USA}, booktitle = {16th International Symposium on Computer Methods in Biomechanics and Biomedical Engineering (CMBBE) 2019, New York City, USA}, abstract = {The AnyBody™ Modeling System (AMS) [1], is an universally used musculoskeletal simulation software using inverse dynamics. Until now, no complete human hand model is known in the AMS. Also considering other musculoskeletal software platforms, just one detailed entire hand model is recently published [2] but is only based on one subject. The aim of this work is to implement a full detailed hand model for the AMS including all extrinsic and intrinsic muscles using data by the UWB gained through an anatomical study of ten cadaver hands.}, language = {en} } @inproceedings{SuessKubowitschRasmussenetal., author = {S{\"u}ß, Franz and Kubowitsch, Simone and Rasmussen, John and Verkerke, Gijsbertus Jacob and Dendorfer, Sebastian}, title = {The influence of cognitive stress on muscle activation and spinal disc load}, series = {European Society of Biomechanics meeting 2019, Vienna, Austria}, booktitle = {European Society of Biomechanics meeting 2019, Vienna, Austria}, language = {en} } @inproceedings{KubowitschDendorfer, author = {Kubowitsch, Simone and Dendorfer, Sebastian}, title = {Psychologie und Biomechanik - Integrierte Betrachtung von Muskelrekrutierung}, series = {Jahrestagung der Deutschen Gesellschaft f{\"u}r Biofeedback e. V., Regensburg, 2018}, booktitle = {Jahrestagung der Deutschen Gesellschaft f{\"u}r Biofeedback e. V., Regensburg, 2018}, language = {de} }