Research Data Repository of Saxon Universities
OPARA is the Open Access Repository and Archive for Research Data of Saxon Universities.
Researchers of Saxon Universities can either publish their research data on OPARA, or archive it here to comply with requirements of funding acencies and good scientic practice, without public access.
You can find the documentation of this service at the OPARA manual websites. If you need suppourt using OPARA please contact the Servicedesk of TU Dresden.
Communities in OPARA
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Recent Submissions
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 William
How 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.
GRK 2802: Phosphorus Partition in an Industrial Basic Oxygen Furnace Process in Ukraine
(Technische Universität Bergakademie Freiberg, 2026-06-29) Volkova, Olena; Tinkova, Nataliia; Onaa, Rapuruchukwu Ifeyinwa; Neubert, Lukas; Niziaiev, Kostiantyn; Zotov, Dmytro
Phosphorus partition data from Ukrainian integrated steel plants are analyzed, focusing on the influence of parameters such as the basicity (CaO/SiO2), optical basicity, tapping temperature, and the contents of (FeO), (MgO), and (Al2O3) in the slag. It is found that the phosphorus partition decreases with increase in tapping temperature and increases with the optical basicity. An increase in the phosphorus partition (P)/[P] followed by a decrease with increase of (CaO/SiO2) are observed. It is found that the optimal value, break point at which phosphorus partition changes its dependence to opposite, has a direct dependence on tapping temperature. At (CaO/SiO2) =1.9–2.1, (P)/[P] increases linearly with increasing (FeO). However with higher value of (CaO/SiO2) the breaking point when (P)/[P] starts to decrease with increase in (FeO) is noticed. Thereby the optimal value of (FeO) decreases with increasing tapping temperature. In case of (Al2O3) there is only decreasing of (P)/[P] with all (CaO/SiO2) and tapping temperatures. Moreover, the effect of (MgO) varies with (CaO/SiO2). These industrial results are supported by thermodynamic simulations using FactSage 8.1 and aligned with existing results from the literature.
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, Roberto
The 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]
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, Denise
This 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.
GRK 2802: Investigations on the corrosion of 316L steel composite materials with MgO/TiO2 ceramic immersed in molten cryolite
(Technische Universität Bergakademie Freiberg, 2026-06-25) Yaroshevskyi, Serhii; Weigelt, Christian; Kerber, Florian; Brachhold, Nora; Zienert, Tilo; Adamczyk, Alexander; Vogt, Daniel; Charitos, Alexandros; Aneziris, Christos G.
Composites based on a steel with 40 vol% magnesia or titania were produced with the ceramics-derived extrusion and pressureless sintering. The materials were tested in a laboratory-scale fused-salt electrolysis cell with a synthetic cryolite in order to identify their potential use as electrode material in the Hall-Heroult process. The highly corrosive atmosphere and salt melt initiated certain corrosion effects in both material variants. The corrosion depth was determined with 1160 μm for magnesia and 463 μm for titania, respectively, after 8 h corrosion test. The initial corrosion includes the complete penetration of the specimens with cryolite and the dissolution of the ceramic component. A pre-oxidation of the specimens containing magnesia depressed the corrosion depth by 75% due to the formation of an aluminium oxide layer in the composite material during corrosion tests. The reduction in corrosion depth by pre-oxidation was less ronounced for the TiO2 composite materials (- 15%).