@article{1970, abstract = {Introduction - Analyses of clinical trial registries (CTRs) offer insights into methodological problems of published research studies, e.g., non-publication and outcome-switching. Here, we use CTRs as a tool to evaluate clinical studies conducted in Germany and test how their registration quality is associated with time and structural factors: Coordinating Centers for Clinical Trials (KKS) and Universities of Excellence. Methods - We searched ClinicalTrials.gov, the DRKS, and the ICTRP for clinical trials recruiting participants in Germany. As a measure for the methodological quality, we assessed the proportion of trials that were pre-registered. In addition, the registration quality and availability of publications relating to the trials were manually assessed for a sample (n = 639). Also, the influence of the structural factors was tested using regression models. Results - We identified 35,912 trials that were conducted in Germany. 59% of trials were pre-registered. Surprisingly, Universities of Excellence had lower pre-registration rates. The influence of KKS was unclear and also difficult to test. Interventional trials were more likely to be pre-registered. Registration quality improved over time and was higher in interventional trials. As of early 2021, 49% of trials that started until the end of 2015 have published scientific articles. 187 of 502 studies on ClinicalTrials.gov for which we found published articles did not reference any in the registry entry. Discussion - The structural predictors did not show consistent relationships with the various outcome variables. However, the finding that the study type and time were related to better registration quality suggests that regulatory regimes may have an impact. Limitations of this non-pre-registered study were that no modifications to registry entries were tracked and the coarse measure of KKS involvement. }, author = {Thiele, Christian and Hirschfeld, Gerrit}, issn = {1932-6203}, journal = {PLOS ONE}, number = {5}, publisher = {Public Library of Science (PLoS)}, title = {{Registration quality and availability of publications for clinical trials in Germany and the influence of structural factors}}, doi = {10.1371/journal.pone.0267883}, volume = {17}, year = {2022}, } @article{2015, abstract = { While fused deposition modeling (FDM) and other relatively inexpensive 3D printing methods are nowadays used in many applications, the possible areas of using FDM-printed objects are still limited due to mechanical and thermal constraints. Applications for space, e.g., for microsatellites, are restricted by the usually insufficient heat resistance of the typical FDM printing materials. Printing high-temperature polymers, on the other hand, necessitates special FDM printers, which are not always available. Here, we show investigations of common polymers, processible on low-cost FDM printers, under elevated temperatures of up to 160 °C for single treatments. The polymers with the highest dimensional stability and mechanical properties after different temperature treatments were periodically heat-treated between -40 °C and +80 °C in cycles of 90 min, similar to the temperature cycles a microsatellite in the low Earth orbit (LEO) experiences. While none of the materials under investigation fully maintains its dimensions and mechanical properties, filled poly(lactic acid) (PLA) filaments were found most suitable for applications under these thermal conditions. }, author = {Storck, Jan Lukas and Ehrmann, Guido and Güth, Uwe and Uthoff, Jana and Homburg, Sarah Vanessa and Blachowicz, Tomasz and Ehrmann, Andrea}, issn = {2073-4360}, journal = {Polymers}, keywords = {additive manufacturing, polymers, space, microsatellites, thermal stability, dimensions, mechanical properties}, number = {14}, publisher = {MDPI AG}, title = {{Investigation of Low-Cost FDM-Printed Polymers for Elevated-Temperature Applications}}, doi = {10.3390/polym14142826}, volume = {14}, year = {2022}, } @article{2017, abstract = { Phase-change memory (PCM) belongs to the nonvolatile solid-state memory techniques. Usually, a chalcogenide is sandwiched between two conductive electrodes and data are stored by setting each cell to a low-resistance (crystalline) or a high-resistance (amorphous) state. Switching between these states is relatively fast, which makes phase-change random access memories (PCRAMs) highly interesting for nonvolatile memories. Multilevel cells, which can store more than 1 bit per cell, and multilayer high-density memory arrays have also been reported as advantages of PCRAM. Writing currents and data retention, on the other hand, still show potential for optimization. This review gives an overview of the most recent developments in new material compositions and material-related optimization of PCM in comparison with already produced PCM.}, author = {Ehrmann, Andrea and Blachowicz, Tomasz and Ehrmann, Guido and Grethe, Thomas}, issn = {2702-4288}, journal = {Applied Research}, keywords = {chalcogenides, nonvolatile memory, phase change material, phase‐change memory}, number = {4}, pages = {e202200024}, publisher = {Wiley}, title = {{Recent developments in phase‐change memory}}, doi = {10.1002/appl.202200024}, volume = {1}, year = {2022}, } @article{2019, abstract = { Electrospinning is often investigated for biotechnological applications, such as tissue engineering and cell growth in general. In many cases, three-dimensional scaffolds would be advantageous to prepare tissues in a desired shape. Some studies thus investigated 3D-printed scaffolds decorated with electrospun nanofibers. Here, we report on the influence of 3D-printed substrates on fiber orientation and diameter of a nanofiber mat, directly electrospun on conductive and isolating 3D-printed objects, and show the effect of shadowing, taking 3D-printed ears with electrospun nanofiber mats as an example for potential and direct application in tissue engineering in general. }, author = {Bauer, Laura and Brandstäter, Lisa and Letmate, Mika and Palachandran, Manasi and Wadehn, Fynn Ole and Wolfschmidt, Carlotta and Grothe, Timo and Güth, Uwe and Ehrmann, Andrea}, issn = {2227-7080}, journal = {Technologies}, keywords = {needleless electrospinning, poly(lactic acid) (PLA), poly(acrylonitrile) (PAN), nanospider, cell adhesion, cell proliferation, 3D printing}, number = {3}, publisher = {MDPI AG}, title = {{Electrospinning for the Modification of 3D Objects for the Potential Use in Tissue Engineering}}, doi = {10.3390/technologies10030066}, volume = {10}, year = {2022}, } @article{2021, abstract = { With a steadily increasing number of machines and devices producing electromagnetic radiation, especially, sensitive instruments as well as humans need to be shielded from electromagnetic interference (EMI). Since ideal shielding materials should be lightweight, flexible, drapable, thin and inexpensive, textile fabrics belong to the often-investigated candidates to meet these expectations. Especially, electrospun nanofiber mats are of significant interest since they can not only be produced relatively easily and cost efficiently, but they also enable the embedding of functional nanoparticles in addition to thermal or chemical post-treatments to reach the desired physical properties. This paper gives an overview of recent advances in nanofiber mats for EMI shielding, discussing their production, physical properties and typical characterization techniques. }, author = {Blachowicz, Tomasz and Hütten, Andreas and Ehrmann, Andrea}, issn = {2079-6439}, journal = {Fibers}, keywords = {shielding effectiveness, near-field antenna, vector network analyzer, carbonization, dielectric properties, conductive properties, magnetic properties, porosity}, number = {6}, publisher = {MDPI AG}, title = {{Electromagnetic Interference Shielding with Electrospun Nanofiber Mats—A Review of Production, Physical Properties and Performance}}, doi = {10.3390/fib10060047}, volume = {10}, year = {2022}, } @article{2023, abstract = { The electrocardiogram (ECG) is one of the most commonly measured biosignals. In particular, textile electrodes allow for the measuring of long-term ECG without skin irritation or other discomforts for the patient. Such textile electrodes, however, usually suffer from insufficient or unreliable skin contact. Thus, developing textile electrodes is impeded by the often-complicated differentiation between signal artifacts due to moving and breathing and artifacts related to unreliable skin contact. Here, we suggest a simple method of using 50/60 Hz power grid noise to evaluate the skin contact of different textile electrodes in comparison with commercial glued electrodes. We use this method to show the drying of wetted skin under an embroidered electrode as well as sweating of the originally dry skin under a coated electrode with high water vapor resistance. }, author = {Tuvshinbayar, Khorolsuren and Ehrmann, Guido and Ehrmann, Andrea}, issn = {2673-7248}, journal = {Textiles}, keywords = {electrocardiogram (ECG), Arduino, electrodes, conductive coating, conductive yarn, sensor}, number = {2}, pages = {265--274}, publisher = {MDPI AG}, title = {{50/60 Hz Power Grid Noise as a Skin Contact Measure of Textile ECG Electrodes}}, doi = {10.3390/textiles2020014}, volume = {2}, year = {2022}, } @article{2025, abstract = { As the electron transport layer of dye-sensitized solar cells (DSSCs), the photoanode is an important component that affects photoelectric conversion efficiency (PCE). The commonly used material titanium dioxide (TiO2) is difficult to prepare as nanostructures with large specific surface area, which affects dye loading and electrolyte diffusion. Herein, TiO2 nanofibers and ZnO-TiO2 composite nanofibers with different molar ratios are synthesized by electrospinning technology. The above nanofibers are coated on photoanodes by the doctor blade method to assemble DSSCs. The influence of the composite ratio of ZnO-TiO2 composite nanofibers on the photoelectric performance of the assembled DSSCs is explored. The ZnO-TiO2 composite nanofibers with a molar ratio of 1 : 2 have large specific surface area and porosity and have the smallest charge transfer resistance at the photoanode-electrolyte interface. The PCE of the nanofiber-modified DSSCs reaches a maximum of 3.66%, which is 56% higher than that of the TiO2 nanofiber-modified DSSCs. The photovoltaic parameters such as open circuit voltage (VOC), current density (JSC), and fill factor (FF) are 0.58 V, 10.36 mA/cm2, and 0.61, respectively. Proper compounding of zinc oxide (ZnO) can not only make the nanofibers absorb more dyes and enhance the light-harvesting ability but also improve the diffusion of the electrolyte and enhance the electron transport, thus successfully improving the power conversion efficiency of DSSCs. }, author = {Chang, Qiqi and Xu, Jun and Han, Yijun and Ehrmann, Andrea and He, Tianhong and Zheng, Ruiping}, issn = {1687-4129}, journal = {Journal of Nanomaterials}, publisher = {Hindawi Limited}, title = {{Photoelectric Performance Optimization of Dye-Sensitized Solar Cells Based on ZnO-TiO2 Composite Nanofibers}}, doi = {10.1155/2022/7356943}, volume = {2022}, year = {2022}, } @article{2027, abstract = { Magnetic nanoparticles can be used for medical and other purposes, but can also be integrated in polymeric or other nonmagnetic matrices of diverse shapes, for example, thin-films or fibers. In the latter case, it may be important how the magnetic nanoparticles are distributed in the matrix, a topic which is often not taken into account when such composites are investigated experimentally or theoretically. Especially for small magnetic nanoparticles of dimensions allowing coherent reversal, the magnetic properties of such polymer/magnet composites can change drastically in the case of agglomerations. Here, a method is suggested to quantify the influence of nanoparticle distributions inside nonmagnetic matrices. By changing the average distance between nanoparticles of varying diameters between highly distributed particles and perfectly packed clusters, different magnetization dynamics can be modeled by micromagnetic simulations. Here, this process is shown for various magnetic materials and diameter distributions of magnetic nano-spheres and present corresponding micromagnetic simulation results, which underline the importance of taking into account possible magnetic agglomerations in nonmagnetic space.}, author = {Blachowicz, Tomasz and Grzybowski, Jacek and Ehrmann, Andrea}, issn = {1521-3900}, journal = {Macromolecular Symposia}, keywords = {iron, collapse, cross-section, permalloy, spherical coordinates, virtual sphere}, number = {1}, publisher = {Wiley}, title = {{Micromagnetic Simulations of Nanoparticles with Varying Amount of Agglomeration}}, doi = {10.1002/masy.202100381}, volume = {402}, year = {2022}, } @article{2029, abstract = { Keratin is one of the most important protein materials and can act as a sustainable biopolymer for manifold applications. This paper reports on a sustainable extraction method for keratin from wool fiber materials. The use of this extracted keratin for polymer film preparation and preparation of nano-composite materials by electrospinning is investigated. The preparation of keratin films is done in combination with the both biopolymers alginate and pectin. Keratin nanofibers are prepared in combination with the polymer polyacrylonitrile PAN. A view on antibacterial properties of the prepared films is given. As further analytic methods, Fourier-transform infrared (FT-IR) spectroscopy, thermogravimetry, and scanning electron microscopy (SEM) are used. Finally, the preparation of new keratin containing materials is described, which may be used in future for biomedical applications. }, author = {Goyal, Sahil and Dotter, Marius and Diestelhorst, Elise and Storck, Jan Lukas and Ehrmann, Andrea and Mahltig, Boris}, issn = {1558-9250}, journal = {Journal of Engineered Fibers and Fabrics}, keywords = {Keratin, wool, electrospinning, SEM, FT-IR spectroscopy, antimicrobial, antibacterial}, publisher = {SAGE Publications}, title = {{Extraction of keratin from wool and its use as biopolymer in film formation and in electrospinning for composite material processing}}, doi = {10.1177/15589250221090499}, volume = {17}, year = {2022}, } @article{2031, abstract = { Atomic force microscopy (AFM) is one of the microscopic techniques with the highest lateral resolution. It can usually be applied in air or even in liquids, enabling the investigation of a broader range of samples than scanning electron microscopy (SEM), which is mostly performed in vacuum. Since it works by following the sample surface based on the force between the scanning tip and the sample, interactions have to be taken into account, making the AFM of irregular samples complicated, but on the other hand it allows measurements of more physical parameters than pure topography. This is especially important for biopolymers and hydrogels used in tissue engineering and other biotechnological applications, where elastic properties, surface charges and other parameters influence mammalian cell adhesion and growth as well as many other effects. This review gives an overview of AFM modes relevant for the investigations of biopolymers and hydrogels and shows several examples of recent applications, focusing on the polysaccharides chitosan, alginate, carrageenan and different hydrogels, but depicting also a broader spectrum of materials on which different AFM measurements are reported in the literature. }, author = {Joshi, Jnanada Shrikant and Homburg, Sarah Vanessa and Ehrmann, Andrea}, issn = {2073-4360}, journal = {Polymers}, keywords = {nanoindentation, elastic modulus, peak force quantitative nanomechanical mapping, KPFM, interaction forces, adhesion, impedance, adsorption, ultracentrifugation, drop deposition}, number = {6}, publisher = {MDPI AG}, title = {{Atomic Force Microscopy (AFM) on Biopolymers and Hydrogels for Biotechnological Applications—Possibilities and Limits}}, doi = {10.3390/polym14061267}, volume = {14}, year = {2022}, } @article{2033, abstract = { Stop marks are one of the most frequently occurring errors in warp-knitted fabrics. They become visible in a fabric each time a warp-knitting machine stops and restarts. Nevertheless, investigations of such stop marks are rarely found in scientific literature. Here, we report on time-dependent investigations of stop marks in warp-knitted fabrics. Microscopic examination of stop marks after stopping times ranging between 1 s and 7 weeks revealed a superposition of the common stop mark due to imperfectly matching rotational speeds of the warp beam and main shaft, and an additional effect due to relaxation in the machine. }, author = {Hellert, Christian and Kieren, Michael and Ehrmann, Andrea}, issn = {23503696}, journal = {TEKSTILEC}, keywords = {stop marks, warp knitting, microscopy, image evaluation}, number = {2}, pages = {84--90}, publisher = {University of Ljubljana}, title = {{Time-Dependence of Stop Marks in Warp-Knitted Fabrics}}, doi = {10.14502/tekstilec.65.2022001}, volume = {65}, year = {2022}, } @article{2035, abstract = { Microalgae can be used for diverse applications in research and industry. Several microalgae grow adhering to surfaces that are usually two-dimensional. A third dimension could increase the amount of microalgae adhering to a given area and can be offered by textile fabrics. Here we report on the microalgae Chlorella vulgaris and Scenedesmus spec. growing on different knitted fabrics under defined light and under office light conditions. Our results show a significant influence of illumination on both algal species and a smaller impact of the chosen medium, while all knitted fabrics under examination were found well suited as substrates. The numbers of alga cells per petri dish were higher on textile fabrics than in pure water or medium by a factor of ~ 4–20, respectively. }, author = {Tanzli, Ewin and Brockhagen, Bennet and Post, Inken Blanka and Bache, Thorsten and Tuvshinbayar, Khorolsuren and Homburg, Sarah Vanessa and Ehrmann, Andrea}, issn = {2701-939X}, journal = {Communications in Development and Assembling of Textile Products}, keywords = {green microalgae, knitted fabrics, Tencel, cotton, linen, oxygen production, Clark electrode}, number = {1}, pages = {9--16}, publisher = {Sachsische Landesbibliothek, Staats- und Universitatsbibliothek Dresden}, title = {{Microalgae growth and oxygen production on different textile fabrics}}, doi = {10.25367/cdatp.2022.3.p9-16}, volume = {3}, year = {2022}, } @article{2037, abstract = { To measure biosignals constantly, using textile-integrated or even textile-based electrodes and miniaturized electronics, is ideal to provide maximum comfort for patients or athletes during monitoring. While in former times, this was usually solved by integrating specialized electronics into garments, either connected to a handheld computer or including a wireless data transfer option, nowadays increasingly smaller single circuit boards are available, e.g., single-board computers such as Raspberry Pi or microcontrollers such as Arduino, in various shapes and dimensions. This review gives an overview of studies found in the recent scientific literature, reporting measurements of biosignals such as ECG, EMG, sweat and other health-related parameters by single circuit boards, showing new possibilities offered by Arduino, Raspberry Pi etc. in the mobile long-term acquisition of biosignals. The review concentrates on the electronics, not on textile electrodes about which several review papers are available. }, author = {Ehrmann, Guido and Blachowicz, Tomasz and Homburg, Sarah Vanessa and Ehrmann, Andrea}, issn = {2306-5354}, journal = {Bioengineering}, number = {2}, publisher = {MDPI AG}, title = {{Measuring Biosignals with Single Circuit Boards}}, doi = {10.3390/bioengineering9020084}, volume = {9}, year = {2022}, } @article{2039, abstract = { Carbon nanofibers are used for a broad range of applications, from nano-composites to energy storage devices. They are typically produced from electrospun poly(acrylonitrile) nanofibers by thermal stabilization and carbonization. The nanofiber mats are usually placed freely movable in an oven, which leads to relaxation of internal stress within the nanofibers, making them thicker and shorter. To preserve their pristine morphology they can be mechanically fixated, which may cause the nanofibers to break. In a previous study, we demonstrated that sandwiching the nanofiber mats between metal sheets retained their morphology during stabilization and incipient carbonization at 500 °C. Here, we present a comparative study of stainless steel, titanium, copper and silicon substrate sandwiches at carbonization temperatures of 500 °C, 800 °C and 1200 °C. Helium ion microscopy revealed that all metals mostly eliminated nanofiber deformation, whereas silicone achieved the best results in this regard. The highest temperatures for which the metals were shown to be applicable were 500 °C for silicon, 800 °C for stainless steel and copper, and 1200 °C for titanium. Fourier transform infrared and Raman spectroscopy revealed a higher degree of carbonization and increased crystallinity for higher temperatures, which was shown to depend on the substrate material. }, author = {Storck, Jan Lukas and Wortmann, Martin and Brockhagen, Bennet and Frese, Natalie and Diestelhorst, Elise and Grothe, Timo and Hellert, Christian and Ehrmann, Andrea}, issn = {2073-4360}, journal = {Polymers}, keywords = {electrospinning, poly(acrylonitrile), stabilization, carbonization, metallic substrates, shrinkage, nanofiber morphology}, number = {4}, publisher = {MDPI AG}, title = {{Comparative Study of Metal Substrates for Improved Carbonization of Electrospun PAN Nanofibers}}, doi = {10.3390/polym14040721}, volume = {14}, year = {2022}, } @article{2041, abstract = { Electrospinning can be used to produce nanofiber mats containing diverse nanoparticles for various purposes. Magnetic nanoparticles, such as magnetite (Fe3O4), can be introduced to produce magnetic nanofiber mats, e.g., for hyperthermia applications, but also for basic research of diluted magnetic systems. As the number of nanoparticles increases, however, the morphology and the mechanical properties of the nanofiber mats decrease, so that freestanding composite nanofiber mats with a high content of nanoparticles are hard to produce. Here we report on poly (acrylonitrile) (PAN) composite nanofiber mats, electrospun by a needle-based system, containing 50 wt% magnetite nanoparticles overall or in the shell of core–shell fibers, collected on a flat or a rotating collector. While the first nanofiber mats show an irregular morphology, the latter are quite regular and contain straight fibers without many beads or agglomerations. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) reveal agglomerations around the pure composite nanofibers and even, round core–shell fibers, the latter showing slightly increased fiber diameters. Energy dispersive X-ray spectroscopy (EDS) shows a regular distribution of the embedded magnetic nanoparticles. Dynamic mechanical analysis (DMA) reveals that mechanical properties are reduced as compared to nanofiber mats with smaller amounts of magnetic nanoparticles, but mats with 50 wt% magnetite are still freestanding. }, author = {Mamun, Al and Sabantina, Lilia and Klöcker, Michaela and Heide, Alexander and Blachowicz, Tomasz and Ehrmann, Andrea}, issn = {2073-4360}, journal = {Polymers}, keywords = {freestanding nanofiber mats, magnetic nanoparticles, needle-based electrospinning, coaxial spinning, dynamic mechanical analysis (DMA), atomic force microscopy (AFM), scanning electron microscopy (SEM)}, number = {3}, publisher = {MDPI AG}, title = {{Electrospinning Nanofiber Mats with Magnetite Nanoparticles Using Various Needle-Based Techniques}}, doi = {10.3390/polym14030533}, volume = {14}, year = {2022}, } @article{2043, abstract = { Abstract - 3D printing is nowadays used for many applications far beyond pure rapid prototyping. As tools to prepare custom-made objects which may be highly complex, different 3D printing techniques have emerged into areas of application where the mechanical, thermal, optical and other properties have to meet high requirements. Amongst them, applications for space, e.g. for microsatellites, make extreme demands regarding the stability under high temperatures. Nevertheless, polymeric 3D printed materials have several advantages for space application in comparison with metal objects. Here we thus investigate the impact of temperatures up to 85 °C and 185 °C, respectively, on typical 3D printing materials for fused deposition modeling or stereolithography (SLA) with inexpensive 3D printers. The materials are found to differ strongly in terms of mechanical properties and dimensional stability after the treatment at a higher temperature, with SLA resins and co-polyester showing the best dimensional stability, while acrylonitrile–butadiene–styrene and SLA resin after long UV post-treatment has the best mechanical properties. }, author = {Storck, Jan Lukas and Ehrmann, Guido and Uthoff, Jana and Diestelhorst, Elise and Blachowicz, Tomasz and Ehrmann, Andrea}, issn = {2752-5724}, journal = {Materials Futures}, number = {1}, publisher = {IOP Publishing}, title = {{Investigating inexpensive polymeric 3D printed materials under extreme thermal conditions}}, doi = {10.1088/2752-5724/ac4beb}, volume = {1}, year = {2022}, } @article{2091, abstract = { In times of climate change and increasing resource scarcity, the importance of sustainable renewable energy technologies is increasing. However, the photovoltaic (PV) industry is characterised by linear economy structures, energy-intensive production, downcycling and little sustainability. One starting point for sustainable technologies is offered by the circular economy with its circular design principles. One problematic aspect of the design of crystalline PV modules is the encapsulation. In particular, the encapsulation avoids high-value recycling or the remanufacturing of modules, which could close loops and extend the lifetime of the products. For this reason, this paper provides an overview of the current state of encapsulation methods regarding production, materials and recycling. In addition, the current state of sustainability research in the photovoltaic sector is presented using the VOSviewer tool. Furthermore, alternative encapsulation technologies are discussed and compared in terms of performance and sustainability. The current encapsulation method using ethylene vinyl acetate as the encapsulation material offers major disadvantages in terms of performance and recyclability. Alternatives are the thermoplastic material polyolefin and the alternative structure of the NICE technology. Overall, however, research should focus more on sustainability and recyclability. Alternative module structures will be a decisive factor in this context. }, author = {Schnatmann, Anna Katharina and Schoden, Fabian and Schwenzfeier-Hellkamp, Eva}, issn = {2071-1050}, journal = {Sustainability}, keywords = {circular economy, encapsulation, crystalline photovoltaic, sustainability}, number = {16}, publisher = {MDPI AG}, title = {{Sustainable PV Module Design—Review of State-of-the-Art Encapsulation Methods}}, doi = {10.3390/su14169971}, volume = {14}, year = {2022}, } @inproceedings{2146, author = {Dellmann, Sarah and Drescher, Katharina and Hofmann, Andrea and Hulin, Sylvia and Jung, Jakob and Kobusch, Alexander and Kuhlmeier, Antje and Matuszkiewicz, Kai and Pfeifer, Mats and Schneider, Corinna and Slavcheva, Adriana and Steinecke, Mascha and Ziegler, Barbara}, keywords = {Zweitveröffentlichung, Open Access, Workflow, OAT 2022}, location = {Bern, Swirtzerland}, title = {{In wenigen Schritten zur Zweitveröffentlichung. Workflows für Publikationsservices}}, doi = {10.5281/zenodo.6974272}, year = {2022}, } @inproceedings{3860, abstract = {In this paper, we reflect on the experiences from two Grounded Design (GD) research projects conducted by a multidisciplinary group of researchers between 2019 – 2021 and highlight the methodological foundations and related obstacles for iterative designing. Both projects investigate the phenomena of knowledge sharing and crisis-related learning in business organizations under the GD paradigm, which has been increasingly adopted within the Computer- supported Cooperative Work (CSCW) community. During these projects, the researchers with backgrounds in computer science, business informatics, software engineering, and sociology experienced the need for systematization to transition between the stages of GD. Looking back, we realize that our teams arrived at this systematization by blending the prior knowledge from team members’ original educational backgrounds. While blending practices most likely happens intuitively in interdisciplinary projects, as is often the case of the user-centered design initiatives seen in CSCW and Human-Computer Interaction, little can be found on how this usually happens and its implications. In this paper, we respond to this literature gap by discussing how this blending can facilitate the realization of GD projects and lead to a praxeological information science research perspective, which has ‘methods appropriation’ as key to systematizing abstraction, broader traceability, and flexibility of research methods.}, author = {Syed, Hussain Abid and Schorch, Maren and Pinatti de Carvalho, Aparecido Fabiano and Rutz, Philipp and Pipek, Volkmar}, booktitle = {Proceedings of 20th European Conference on Computer-Supported Cooperative Work}, issn = {2510-2591}, location = {Coimbra, Portugal}, title = {{Blending Practices to Facilitate Grounded Design Research: A Praxeological Research Perspective}}, doi = {10.48340/ECSCW2022_N04}, year = {2022}, } @inproceedings{4437, author = {Eisfeld, Michael}, location = {Vilnius}, title = {{Artificial Intelligence meets Structural Design in Practice}}, year = {2022}, }