TU Dresden Data Publications
Permanent URI for this collectionhttp://opara.zih.tu-dresden.de/handle/123456789/15
Data publications from research of Dresden University of Technology.
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Item Open Access Development and Evaluation of a Virtual Reality Environment for Geometry Education: A Design-Based Research Study(Technische Universität Dresden, 2026-08-28) Josupeit, Judith; Arlt, Annika; Greiß, Annika; Dyrna, Jonathan; Köhler, ThomasVirtual reality (VR) offers new possibilities for geometry education by enabling learners to explore three-dimensional objects in spatially coherent environments. Despite these benefits, curriculum-related and theory-informed VR learning environments for lower secondary geometry remain limited, especially regarding formative evidence on users’ perceptions and design-related refinement needs. Thus, this study presents the development and formative evaluation of a VR learning environment for lower secondary geometry education, using a design-based research approach. In the environment, learners explored a virtual house and solved geometry tasks related to the geometric properties of the building and its surroundings. The evaluation comprised two phases with 48 participants in total. Quantitative questionnaire data and qualitative feedback were analyzed to examine perceived usability, cybersickness, cognitive load, motivation, perceived learning, didactic suitability, and design-related refinement needs. Overall, participants evaluated the environment positively. Ratings indicated low cybersickness, favorable perceived ease of use, low extraneous cognitive load, high learning-relevant effort, and high intrinsic motivation. Qualitative feedback showed that participants valued spatial exploration and perspective-taking, but also identified needs for more interaction, improved documentation of intermediate results, integrated feedback, and feasible classroom implementation.Item Open Access FedSurg EndoVis 2024: Challenge Subset of Appendix300(Technische Universität Dresden, 2026-08-27) Kirchner, Max; Kolbinger, Fiona R; Jenke, Alexander C; Saldanha, Oliver L; Pfeiffer, Kevin; Kanjo, Weam; Kather, Jakob N.; Bodenstedt, Sebastian; Speidel, StefanieThis deposit contains the supplementary data for the FedSurg EndoVis 2024 Challenge, the first federated learning challenge in Surgical Data Science, held at MICCAI 2024. The challenge used a preliminary subset of the Appendix300 dataset, a multi-institutional collection of laparoscopic appendectomy recordings from German university and community hospitals, annotated with intraoperative appendicitis severity grades 0 to 5 following Gomes et al. The challenge cohort comprises 223 recordings across four centers, split into 153 training and 70 test cases. The deposit includes a CSV file specifying which Appendix300 samples were used in the challenge and their assignment to centers and to the training and test splits, together with two recordings that were used in the challenge but excluded from the final Appendix300 dataset because the available footage was shorter than the nominal 100 second window or the appendix was not clearly visible at the annotated timestamp. This deposit does not contain the appendectomy video recordings themselves, with the exception of the two excluded cases named above. The video data and accompanying clinical metadata are available separately as the Appendix300 dataset at https://doi.org/10.25532/OPARA-1173. The challenge evaluation and ranking code is available at https://gitlab.com/nct_tso_public/challenges/miccai2024/snippet, and the example federated learning setup at https://gitlab.com/nct_tso_public/challenges/miccai2024/FedSurg24. Use of this material requires citation of both the FedSurg challenge paper and the Appendix300 data descriptor. Released under CC BY.Item Open Access Data Sets for Paper "A Leaner and Faster Web: How CBOR Can Improve Dynamic Content Encoding in JSON and DNS over HTTPS"(Technische Universität Dresden, 2026-08-27) Lenders, Martine S.; Bormann, Carsten; Schmidt, Thomas C.; Wählisch, MatthiasThese data sets contain the files to recreate our evaluations using the code archived at https://doi.org/10.5281/zenodo.21790597. This is a supplement to the paper - M. S. Lenders, C. Bormann, T.C. Schmidt, and M. Wählisch, “**A Leaner and Faster Web: How CBOR Can Improve Dynamic Content Encoding in JSON and DNS over HTTPS**,” IEEE Transactions on Network and Service Management (TNSM), August 2026. https://doi.org/10.1109/TNSM.2026.3722114 **Paper abstract:** The Internet community has taken major efforts to decrease latency on the World Wide Web with significant improvements in accelerating content transport and in compressing static content. Less attention, however, has been dedicated to compression of dynamic content. Such content is commonly provided by JSON and DNS over HTTPS. Dynamic content objects continue to grow in size, which increases latency and fosters the digital inequality. In this paper, we propose to mitigate this increase by utilizing Concise Binary Object Representation (CBOR), a standard originally designed for the constrained Internet of Things (IoT) to restrict packet sizes and enable efficient encoding of data objects. We provide protocol design and three new data sets for the evaluation of dynamic content, DNS, and the loading of websites. Our key findings are the following: _(i)_ Switching the data representation from JSON to CBOR reduces data by up to 80%. This size reduction can decrease loading times by up to 13.8% when downloading large objects—even in local setups. _(ii)_ Enabling CBOR for DNS over HTTPS (DoH) and DNS over CoAP (DoC) reduces packet sizes significantly. Compressing only names combined with unpacked CBOR achieves maximum gain of 52.2%, using more complex but still lightweight Packed CBOR allows minimizing packets by up to 95.5%. Our lean decoder for name compression can fit into as little as 314 bytes of build size. Our results clearly show the potential of CBOR outside of IoT scenarios. Parts of this research have already influenced work within the IETF.Item Open Access Mean Stress Sensitivity of Cold-Worked High-Purity Copper: A comprehensive dataset(Technische Universität Dresden, 2026-08-25) Schneider, Tom; Schöne, Sebastian; Bohot, André; Lauf, Matthias; Werdin, Sven; Hantschke, Peter; Zimmermann, Martina; Kästner, MarkusThe influence of work hardening on the fatigue behaviour of high-purity copper was investigated using commercially available sheet material (3 mm thickness, as-delivered, no additional rolling or heat treatment) in three strength classes (indicated by their R-number, a measure of minimum tensile strength): R240 (two independently supplied batches, R240-1 and R240-2), R290, and R360. These material states are representative of copper conductors used in electrical applications such as traction motors, generators, and battery systems. For each material state, the dataset comprises: 1. Microstructural characterization by electron backscatter diffraction (EBSD). 2. Quasi-static (monotonic) tensile tests in strain control, using the same specimen geometry as the fatigue specimens (10 mm gauge length; not a standard tensile geometry, so results beyond necking are not comparable to standardized tensile tests). 3. Load-controlled fatigue (Wöhler/S-N) tests on smooth, unnotched specimens at several load ratios, used to quantify the combined effect of mean stress and work-hardening state on fatigue strength. Run-out was defined at 5 10^7 load cycles.Item Open Access Interviewtranskripte, Stellungnahmen und Fragebogendaten zur Studie "Einfluss außerschulischer Lernorte auf Bewertungsprozesse zu Socioscientific Issues"(Technische Universität Dresden, 2026-07-30) Böning, PaulZu zwei Zeitpunkten in der Erhebung wurden mit einzelnen Schüler:innen Interviews durchgeführt. Die Transkripte dieser Interviews liegen, sortiert nach Gruppe, gemeinsam in einer zip-Datei im txt-Format vor. Die argumentativen Stellungnahmen der Schüler:innen vor und nach der Intervention liegen gemeinsam in einer csv- Datei vor. Am Ende jeder Stunde der Intervention beantworteten die Schüler:innen einen Fragebogen zur aktuellen intrinsischen Motivation. Vor der Intervention füllten sie einen Fragebogen zum individuellen Interesse an Physik aus. Alle Antworten auf diese Fragebögen liegen gemeinsam in einer zip-Datei gemeinsam mit der Itembeschreibung als csv-Dateien vor.Item Open Access Original research data of "Immediate Organic Room-Temperature Phosphorescence in Programmable Luminescent Tags Enabled by Oxygen-Free Fabrication"(Technische Universität Dresden, 2026-07-08) Winkler, Lucy; Schellhammer, Sebastian; Reineke, SebastianOriginal research data to the following paper: Programmable luminescent tags (PLTs) exploit the oxygen sensitivity of room-temperature phosphorescence (RTP) from organic emitters to enable reversible information storage. In conventional PLTs, phosphorescence is initially quenched by oxygen incorporated during ambient processing. Upon UV irradiation, oxygen is photochemically consumed, activating RTP emission. While a single-use application is already commercially exploited in UV sensors, reusability is prevented by decreasing activation dose and RTP intensity over multiple activation cycles, which had previously been attributed to oxygen trapped during the fabrication process. Here, we introduce an oxygen-free fabrication workflow that enables direct control of the oxygen content in PLTs and thereby allows systematic investigation of its role in the activation process. It is demonstrated that oxygen can diffuse out of the active layer under oxygen-free conditions, resulting in oxygen-free devices with immediate RTP emission. A comparison of the reusability of oxygen-free and conventional PLTs reveals similar behavior, indicating that photodegradation rather than trapped oxygen dominates long-term performance. In addition, thermal preconditioning of oxygen-free PLTs enables regulated oxygen re-entry, allowing the activation dose to be tuned without modifying the material composition or device architecture. These findings clarify degradation processes in PLTs and establish a general framework for activation-tuned RTP in photonic devices.Item Open Access Supplemental material to "Field-induced condensation of π to 2π soliton lattices in chiral magnets"(Technische Universität Dresden, 2026-06-30) Winter, Moritz; Pignedoli, Alessandro; Rahn, Marein; Sukhanov, Aleksandr; Achinuq, Barat; Bollard, Jack; Azhar, Maria; Everschor-Sitte, Karin; Pohl, Darius; Schneider, Sebastian; Tahn, Alexander; Victor, Ukleev; Valvidares, Manuel; Thomas, Andy; Wolf, Daniel; Vir, Praveen; Helm, Toni; van der Laan, Gerrit; Hesjedal, Thorsten; Geck, Jochen; Rellinghaus, BerndThis dataset contains the experimental and simulation data underlying the figures of the corresponding publication, which reports a field-induced crossover from π to 2π chiral soliton lattices in the Heusler compound Mn1.4PtSn. All measurements were performed on the same focused-ion-beam lamella at room temperature, with the magnetic field applied out of plane (along the crystallographic c axis). The data are organized by method: (1) 1_LTEM — Lorentz transmission electron microscopy: transport-of-intensity (TIE) reconstructions of the magnetic phase and in-plane induction on a region of interest as a function of field (Figs 2, 3, 6), the two full-field raw micrographs at 0 and 300 mT shown in Fig 1, and the measured stripe period and domain widths vs field (Fig 3); (2) 2_REXS — resonant elastic X-ray scattering at the Mn L3 edge (Diamond I10): raw detector frames of the 0–550 mT field upsweep (Fig 1) and the extracted propagation-vector magnitude and harmonic intensities vs field (Figs 3, 4), with the analysis notebook; (3) 3_micromagnetics — Mumax3 input scripts and output (magnetization fields, energies, applied field) for the final field sweep that reproduces the measured modulation length, domain widths and harmonic content (Figs 6, 7, 8); (4) 4_model — a phenomenological 1D stripe-domain model (script, generated spin textures and induction profiles) used to deduce and visualize the spin textures (Figs 2g–o, 6); (5) figure_plots — the OriginPro projects holding the plotted data behind Figs 3, 4, 6 and 8. Together these data establish that the magnetic ground state of Mn1.4PtSn is a π-soliton lattice rather than a helical spiral, and that it condenses continuously into a conventional 2π-CSL under increasing out-of-plane field. A top-level README and Fig_to_data_map.csv document the file formats and the mapping between data and figures.Item Open Access Supplementary data for the publication "Cell size reduction distinctly scales spindle elongation and chromosome segregation in C. elegans"(Technische Universität Dresden, 2026-06-29) Okafornta, Chukwuebuka WilliamHow embryos adapt their internal cellular machinery to reductions in cell size during development remains a fundamental question in cell biology. Here, we use high-resolution lattice light-sheet fluorescence microscopy and automated image analysis to quantify lineage-resolved mitotic spindle and chromosome segregation dynamics from the 2- to 64-cell stages in Caenorhabditis elegans embryos. While spindle length scales with cell size across both wild-type and size-perturbed embryos, chromosome segregation dynamics remain largely invariant, suggesting that distinct mechanisms govern these mitotic processes. Combining femtosecond laser ablation with large-scale electron tomography, we find that mid-spindle microtubules mediate chromosome segregation dynamics and remain uncoupled from cell size across all stages of early development. In contrast, spindle elongation is driven by cortically anchored motor proteins and astral microtubules, rendering it sensitive to cell size. Incorporating these experimental results into an extended stoichiometric model for both the spindle and chromosomes, we find that allowing only cell size and microtubule catastrophe rates to vary reproduces spindle pole-to-pole dynamics across development. The same model also accounts for centrosome separation and pronuclear positioning in the one-cell C. elegans embryo, spindle-length scaling across nematode species spanning ~100 million years of divergence, and spindle rotation in human cells. Thus, a unified stoichiometric framework provides a predictive, mechanistic account of spindle and nuclear dynamics across scales and species.Item Open Access Data for "Phase diagram of magnetis $S^3$ Skyrmions on three-dimensional lattices and the toroidal antiSkyrmion"(Technische Universität Dresden, 2026-06-25) Francini, Niccolo; Bolognesi, Stefano; Gudnason, Sven Bjarke; Menta, RobertoThe archive contains the data used to construct Figs. of the manuscript "Phase diagram of magnetis $S^3$ Skyrmions on three-dimensional lattices and the toroidal antiSkyrmion" by N. Francini, S. Bolognesi, S.B. Gudnason, and R. Menta [arXiv:2606.07740]Item Open Access Experimental Materials for “Breaking the Silence with Authenticity”: A Scenario-Based Team Experiment Evaluating a Leadership and Employee Training(Technische Universität Dresden, 2026-06-25) Ledermann, Franca; Wegge, Jürgen; Dörfel, DeniseThis archive contains experimental materials for a scenario-based team experiment evaluating an authenticity-based online training for leaders and employees in the context of healthcare. The corresponding study addresses employee silence as an emotionally embedded phenomenon linked to emotional exhaustion and impaired psychological well-being. Building on research on authenticity, emotional resources, leadership, and team processes, the experiment uses a control group design to examine whether the “Working Authentically” training can strengthen authenticity-related resources and reduce silence and emotional strain in emotionally challenging team interactions. The material package documents the standardized implementation of a pre-post experimental paradigm with clustered team data, simulated team meetings and role-specific instructions, and both self-report and observational assessment opportunities. It includes materials used to prepare, conduct, and standardize the experimental sessions, such as the experimental procedure SOP, role-specific instructions for leaders, employees, and confederates, meeting materials for the T0 and T1 assessments, participant communication templates, and training files and worksheets for the intervention group provided in separate leader and employee versions.Item Open Access Subcellular ETC flux data in mouse oocytes under oxygen drop and temperature sweep experiments(Technische Universität Dresden, 2026-06-19) Schwabe, Maximilian; Ilker, Efe; Yang, XingboThis dataset contains the data of subcellular distributions of the mitochondrial electron transport chain (ETC) flux within mouse oocytes inferred from the fluorescence lifetime imaging (FLIM) of NADH. The ETC flux distribution is obtained as a function of distance to the center of the oocyte, displaying a spatial gradient. This dataset includes the different responses of this subcellular ETC flux gradients to oxygen drop and temperature sweep perturbations of the oocytes. It contains the raw data of the ETC flux gradients across these perturbations as well as analysis of the origin of this gradient using reaction-diffusion and spatial kinetic modeling. The code used to generate and make plots from the data is available at https://github.com/MaxScw/mitoFluxGradientsItem Open Access Dataset for the publication - A labelled property graph Framework for managing vitrimer formulation-, manufacturing-, and material-data: a proof-of-concept study on glass transition temperature(Technische Universität Dresden, 2026-06-16) Saske, Bernhard; Sambale, Anna; Dammann, Maximilian; Von den Berg, Nina; Schwoch, SebastianThe data set is used in the article A labelled property graph Framework for managing vitrimer formulation-, manufacturing-, and material-data: a proof-of-concept study on glass transition temperature. The study investigates the use of a labelled property graph for storing measurement series related to determining the material properties of vitrimers, focusing on glass transition temperature (Tg). Two epoxy/4AFD vitrimer formulations with different resin-to-hardener ratios were analyzed, yielding Tg values of approximately 135.1 ± 0.2 °C and 107.6 ± 0.4 °C, respectively, from differential scanning calorimetry measurements. A custom data model was developed using a labelled property graph approach, designed in Hackolade Studio and implemented in Neo4j, to link experimental data with metadata. The proof of concept demonstrated the model's usability and consistency, highlighting the potential of property graph databases for structured vitrimer data storage.Item Open Access Mobility and GNSS-route data from a smartphone app-based travel survey from Berlin and Dresden (Städte in Bewegung 2025)(Technische Universität Dresden, 2026-06-02) Weber, Johannes; Hubrich, Stefan; Díaz Cordero, Manuel; Noroozi, Vahid; Wübbenhorst, Jonas; Krombach, Jonas; Gerike, RegineThese datasets are dedicated to non-commercial research purposes in the areas of mobility research, urban and transport planning, and geoinformation upon authorized request. Given the fact that the datasets contain personal data, only authorized research institutions in Germany can be granted full access. More information on data request can be found at https://dd-trust.zih.tu-dresden.de/msp-main/. Datasets can be provided as SAV or CSV files, collectively forming the StiB database of persons and their travel behavior, based in the cities of Berlin and Dresden, who have given their broad consent for scientific data reuse of pseudonymized data—referred to as the StiB Broad Consent Database. The database is hierarchical and consists of four interconnectable levels: 1) 1 dataset containing socio-demographic information about the participants as well as information about their participation in the survey (person level), 2) 1 dataset containing collected days per person with travel estimates, calendar details, participation duration and user validation status (day level), 3) 1+1 datasets with the collected trips per person and day with e.g. trip duration, distance, purpose and data quality criteria—extendable with a geo-referenced dataset containing start and end coordinates of the trips using WGS84 / EPSG:4326 (trip level) 4) 1+2 datasets with collected app items from the mobility diaries per person, day and trip with e.g., route/stay duration, distance, stay purpose and data quality criteria—extendable with two separate geo-referenced datasets containing information on route and stay geometry using WGS84 / EPSG:4326 (storyline level) The StiB Broad Consent Database is based on collected data from the StiB-app and related online questionnaires. These data have been post-processed by MSP and unified into one database, formatted according to the standardized structure above, from data collections in Berlin and Dresden.Item Open Access Data for Composite superconducting orders and magnetism in CeRh2As2(Technische Universität Dresden, 2026-05-29) Jakubczyk, FabianThis archive contains the data plotted in the paper F. Jakubczyk, J. M. Link, C. Timm, Composite superconducting orders and magnetism in CeRh2As2, Phys. Rev. Res. (2026). For this paper, the interplay of the ordered phases in CeRh2As2 was investigated within a theoretical framework based on symmetry analysis combined with Bogoliubov--de Gennes and Landau methods. This approach accurately reproduces current experimental results for varying temperature as well as out-of-plane and in-plane magnetic field, both if the transition to a magnetic phase occurs below the superconducting critical temperature and if it occurs above. Calculations and plots of phase diagrams, free energy, order-parameter amplitudes and thermodynamic observables were carried out using Mathematica.Item Open Access Charge Particle Optics Simulation Utilizing Hamiltonian Mechanics Perturbation Expansion and Boundary Elements Field Computation(Technische Universität Dresden, 2026-05-26) Lubk, Axel; Houdellier, Florent; Müller, Heiko; Uhlemann, StephanBackground incl. aims Advanced charge particle optics (CPO) requires fast and accurate computational tools for calculating (relativistic) particle trajectories including aberrations that, ideally, handle both arbitrary electrics and magnetic field sources, handle arbitrarily bend optical axis, allow incorporation of symmetries (e.g., rotational or mirror), incorporate optimization of design parameters such as pole piece diameter or pole distances. Ideally such tools should also be available under open source licenses in order to facilitate widespread use as well as distributed and sustainable development. Despite the enormous level of development and usefulness of commercial (e.g. Simion, EOD, Comsol) and open source packages, they often lack a subset of the above functionalities, somewhat hampering a wide spread development and use of advanced CPO for, e.g., Transmission Electron Microscopy, Secondary Ion Mass Spectroscopy, Photo Electron Spectroscopy, in academia, industry, and also teaching. The CPO software development described below intends to address that need. Methods Here we report on the development of an open source computational CPO framework incorporating the following principles to allow for an accurate, fast and flexible trajectory calculation: (A) We use boundary element method (BEM) computation of electric and magnetic fields, yielding smooth and accurate potentials, fields and higher-order derivatives at optical axis at arbitrary sampling, while reducing the meshing effort to surfaces (e.g., electrodes and pole pieces) of the CPO device. Herein, single layer representations of both electric and magnetic scalar potential are most efficient, while Green’s representation with Calderon preconditioning allows stable single step solution of magnetic field distributions in the presence of high µr materials. (B) We employ semianalytical hierarchical solution of perturbation series of Hamiltonian equations of motion around an optical axis[1] in order to provide computationally effective, fast and accurate built-up of aberrations along particle trajectories. While not implemented yet the Hamiltonian perturbation expansion also facilitates straight forward extension to curved axis and the eikonal representation of aberrations. (C) We integrate the fast field and particle trajectory computation with non-linear optimization routines facilitating automatic optimization of design parameters (e.g., multipole sizes, pole piece gap) with respect to certain target functionalities. This tool chain is written in Python and makes use of advanced open source libraries (namely OpenCascade for CAD, gmsh for meshing, BEMPP for BEM field computation, sympy for semianalytic Hamiltonian mechanics perturbation expansion including automatic code generation, scipy for solving equations of motion, nlopt for geometry optimization) in a modular way, which are partly adapted to the specifics of CPO. Notably, BEMPP was extended by parallel just-in-time compiled numba and opencl kernels for field derivative computations on optical axis as required for computation of paraxial trajectories and aberrations. Results We demonstrate and discuss the above tool chain with the help several electrostatic and magnetostatic CPO / building blocks of CPO, notably electrostatic Einzellens, electrostatic quadrupole – round aperture assembly (see Fig. 1) and magnetostatic quadrupole, touching implementation (e.g., CAD import, defining boundary conditions, vector potential gauge), numerical (e.g., mesh size, precision of paraxial solution) and CPO (e.g., chromatic and geometric aberrations) aspects. Conclusion A modular combination of adapted BEM field computations and semianalytical perturbation series expansion of Hamiltonian equations of motion admits a computationally efficient modeling of CPO utilizing a combination of powerful and freely available open source software packages. Further development aims at incorporation of curved optical axis and general enhancement of functionality and user friendliness in order to support development of advanced CPO across the community. Reference: [1] Kern, F., Krehl, J., Thampi, A., Lubk, A. “A Hamiltonian mechanics framework for charge particle optics in straight and curved systems”, Optik, 2021, 242, 167242 [2] Tamura, K., Okayama, S., Shimizu, R. “Third-order spherical aberration correction using multistage self-aligned quadrupole correction-lens systems”, Journal of Electron Microscopy, 2010, 59, 197 [3] We acknowledge financial support by the European Union's Horizon Europe framework program for research and innovation under grant agreement n. 101094299 (IMPRESS project).Item Open Access Original research data of "Tunable-Threshold UV Dosimetry with Programmable Luminescent Tags via Oxygen-Mediated Room-Temperature Phosphorescence"(Technische Universität Dresden, 2026-05-19) Achenbach, Tim; Will, Paul-Anton; Schellhammer, Sebastian; Reineke, SebastianOriginal research data to the following paper: Accurate monitoring of UV radiation is critical across numerous disciplines, yet bridging the gap between complex electronic devices and ambiguous, gradual colorimetric indicators remains challenging. Addressing this challenge, a novel approach for a customizable, purely organic UV threshold dosimeter based on oxygen-mediated room-temperature phosphorescence (RTP) is presented. The active layer comprises a purely organic emitter (BP-2TA) dispersed in a poly(methyl methacrylate) (PMMA) host, protected by a polyvinyl alcohol layer. Upon UV irradiation, photochemical oxygen consumption yields a high-contrast, sharp turn-on of the emitter’s phosphorescent emission once a specific cumulative UV dose is reached. This activation depends strictly on the cumulative dose rather than irradiation intensity and is systematically tunable by adjusting the emitter concentration. A comprehensive physical model is introduced that describes the wavelength and thickness dependencies, revealing a thin-film regime where the activation dose becomes independent of the active layer thickness. Supported by shelf-life stability tests, these findings, alongside the proposed operational modes, establish the RTP-based sensors as robust UV dosimeters that could be easily integrated into production processes.Item Open Access Dental Anxiety and preventive dental care in 102 Patients in a oral surgery practice(Technische Universität Dresden, 2026-05-08) Berth, Hendrik; Qorri, Rezart; Cunoti, NertsaThe dataset contains questionnaire responses from 102 patients. These patients (42 males and 60 females with a mean age of 40.3 years) visited an oral surgery practice in Saxony, Germany, between December 2019 and June 2020. They completed the Dental Anxiety Scale (DAS) questionnaire, as well as answering six questions on preventive dental care. Examples of these questions are “How many times a day do you brush your teeth?” and “How often per year do you have your teeth professionally cleaned?”. The patients' gender, age, marital status, educational background and occupation were also recorded.Item Open Access Multi-Domain Optimization for Networked Control Systems(Technische Universität Dresden, 2026-04-30) Pallewaththe Kankanamge, Hasal Dinusankha Kulasekara; Soler Perez Olaya, Santiago; Wollschlaeger, MartinThis repository contains the experimental artifacts for our paper on multi-domain model-driven optimization for networked control systems, providing a comprehensive suite of resources for system modeling and evaluation, including: - plant-side dynamical models, - communication-delay models, - neural-network surrogate training and evaluation, - objective-function analysis for accuracy-versus-computation trade-offs, and - optional Hailo deployment and latency measurements.Item Open Access Appendix300: Surgical video and patient metadata of 330 laparoscopic appendectomy cases from five institutions(Technische Universität Dresden, 2026-04-29) Kolbinger, Fiona R; Kirchner, Max; Pfeiffer, Kevin; Bodenstedt, Sebastian; Jenke, Alexander C; Barthel, Julia; Carstens, Matthias; Dehlke, Karolin; Dietz, Sophia; Emmanouilidis, Sotirios; Fitze, Guido; Freitag, Martin; Holderried, Fabian; Jacobi, Thorsten; Kanjo, Weam; Leitermann, Linda; Mees, Sören Torge; Pistorius, Steffen; Prudlo, Conrad; Seiberth, Astrid; Schultz, Jurek; Thiel, Karolin; Ziehn, Daniel; Speidel, Stefanie; Kather, Jakob Nikolas; Distler, Marius; Saldanha, Oliver LesterThe limited availability of diverse and representative training data poses a critical barrier to the development of clinically relevant computational tools for intraoperative surgical decision support. Surgical procedures are not routinely recorded, and data annotation requires domain expertise, resulting in a scarcity of open-access surgical video datasets with high-quality annotations. Existing datasets are typically limited to single institutions and specific procedures, such as cholecystectomy, and rarely comprise patient-level metadata like demographic characteristics, disease history, or laboratory parameters. The Appendix300 dataset comprises 330 laparoscopic surgery recordings, including 325 full-length laparoscopic appendectomies and 5 control recordings from non-appendectomy procedures in pediatric and adult patients treated at five German centers. The dataset includes patient-level clinical metadata (demographics, medical history, clinical symptoms, preoperative laboratory parameters, and histopathological findings, as well as standardized expert annotations of the laparoscopic grade of appendicitis. This dataset enables novel validation tasks for computer vision in laparoscopic surgery and facilitates simulation of decentralized learning approaches, overall enhancing the breadth and translational relevance of AI-based surgical video analysis.Item Open Access Airborne Laser Scanning, Elevation Models and True Orthophoto Mosaic of the Saxon–Bohemian Switzerland National Park Region from 2005(Technische Universität Dresden, 2026-04-27) Trommler, MarcoThe digital data has been created during an INTERREG IIIA project in the period from January 2004 up to December 2006. The main task of the project is the planning and finalisation of activities to create a homogeneous geographic data set including high accuracy topographic and optical data for the whole cross-border national park region Saxon- Bohemian Switzerland. Data acquisition was provided using one sensor system without splitting the region into several parts. Laser scanner data with a minimum of 1 measurement point per square meter and 50% overlap across flight direction, colour infrared and RGB imagery have been collected simultaneously. After the successful finalisation of data acquisition all the data was processed in order to produce high quality digital terrain models (DTM) and high resolution true ortho imagery mosaics. The data acquisition has been taken by TopoSys GmbH (Biberach, Germany) in Spring 2005 using the FALCONII sensor system. The mission was flown in March in the period from April 14th, 2005 to May 1st, 2005 (16 flights on 11 days). The true ortho imagery mosaic was completely created by TopoSys.