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 ZIH Data Compendium websites. If you need suppourt using OPARA please contact the Servicedesk of TU Dresden.

Please note: The OPARA service was recently upgraded to a new technical platform (this site). Previously stored data will not be available here immediately. It can be found at the still active old version of OPARA. These stock data will be migrated in near future and then the old version of OPARA will finally be shut down. Existing DOIs for data publications remain valid.

Artwork based on 1, 2, 3, 4  @pixabay
 

Communities in OPARA

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Recent Submissions

ItemOpen Access
Parameters Tested for VNA validation
(Universität Leipzig, 2025-12-03) Harzer, Maxi
Five key protocol variables were systematically assessed: (i) the applied trypsin concentration, (ii) the incubation time for proteolytic activation of the RV, (iii) the infection dose applied, (iv) the duration of neutralization time and (v) sample-specific factors that affect assay performance. Furthermore, correlation studies was done between several sample materials and Virus neutralization (VNA) and immunofourescence assay titers. Moreover the sensitivity limit and the linearity of the VNA was determined as well as intra- and inter-assay repeatability.
ItemOpen Access
Data from "Come fly with me" VR study on Reducing Cybersickness with Foveated Depth of Field Blur across varying Locomotion Control conditions
(Technische Universität Dresden, 2025-12-03) Josupeit, Judith; Helmert, Jens; Hussain, Razeen; Solari, Fabio; Chessa, Manuela
Cybersickness, which is characterized by symptoms such as general discomfort, headaches, and nausea, is a common issue in virtual reality (VR) that negatively impacts the accessibility and user experience. Foveated depth of field blur rendering (FovDof) uses the perceptual limitations of the human eye to mitigate cybersickness. However, the external validity of this countermeasure is limited. To increase the external validity, an interactive task is introduced. In addition, the study introduces two levels of locomotion control (3 vs. 6DoF). Along with subjective measures focusing on cybersickness symptoms (SSQ/MISC), objective performance measures (eye tracker sampling frequency) were analyzed. Based on valid data from 65 participants, the analysis revealed significant main effects for both rendering and locomotion control factors for the objective measures. However, the effects of the two types of measures are in opposite directions. For the subjective measures, the combination of full rendering and 3DoF locomotion control resulted in the highest cybersickness values. These results suggest that the applicability of FovDof is universal, even when a task is included, and can be implemented using other eye tracking software and hardware. However, limited customizability for VR headsets limits the applicability. In cases where full locomotion control is provided to the user, the FovDof algorithm does not have additional mitigating effects.
ItemPublic Metadata
Measurement Data for "An Analysis of Energy Efficiency Features in Intel Sapphire Rapids Processors"
(Technische Universität Dresden, 2025-12-02) Schmidl, Markus
This dataset contains performance measurement data which is used to classify internal mechanisms and characteristics that facilitate the tuning of energy efficiency on the Intel Sapphire Rapids processor generation. The data is generated from measurement configurations and code hosted at the following git repository: https://github.com/marenz2569/2025-sappire-rapids-ee
ItemOpen Access
Supplemental material for the publication "Children born SGA receiving growth hormone have similarly impaired glucose-insulin metabolism as children with obesity"
(Universität Leipzig, 2025-12-02) Prengemann, Lea; Stein, Robert; Gausche, Ruth; Beger, Christoph; Vogel, Mandy; Wenzel, Eric; Stoltze, Anette; Kiess, Wieland; Pfäffle, Roland; Körner, Antje
Background and Objectives: Being born small for gestational age (SGA) and growth hormone (GH) treatment are linked to disturbed glucose-insulin metabolism. We investigated how GH treatment affects glucose-insulin metabolism in children born SGA compared to children with isolated growth-hormone deficiency (iGHD), obesity and lean controls. Methods: We analyzed glucose-insulin metabolism indices derived from OGTTs (Matsuda index, AUC insulin) and fasting parameters (fasting glucose, HOMA-IR) in 134 SGA patients without catch-up growth (CUG) receiving GH therapy (SGA-GHT), 27 untreated SGA patients with catch-up growth (SGA-CUG), 308 iGHD patients under GH treatment, 427 children with obesity and 356 lean controls. We adjusted for sex, age and BMI through matching and multivariable regression. Results: Treatment-naïve SGA-GHT patients were more insulin-resistant than iGHD patients (higher insulin AUC (p=0.002) and HOMA-IR (p<0.001), lower Matsuda index (p<0.001)) with levels approaching those of the obesity cohort. Under GH therapy, HbA1c was higher in SGA-GHT and iGHD patients (5.26%±0.35 vs. 5.25%±0.25) than in lean controls (5.09%±0.27). Insulin resistance in SGA-GHT patients approached levels seen in obesity. The prevalence of prediabetes was highest in SGA-GHT children (11.11%) compared to those with iGHD (1.59%) or obesity (3.13%). After stopping GH therapy, SGA-GHT patients retained elevated markers of prediabetes (4.65%) and insulin resistance compared to controls and iGHD patients, similar to children with obesity (6.38%). No overt type 2 diabetes was observed. Conclusion: SGA patients have an impaired glucose-insulin metabolism similar to that of children with obesity, which worsens under GH therapy. Close metabolic monitoring of GH-treated SGA patients is recommended.
ItemOpen Access
Farnesischer Stier - Bodenplatte unter Amphion, Universität Leipzig, Antikenmuseum, G 661 - TF 1, high-poly
(Universität Leipzig, 2025-12-02) Michalski, Paula; Apelt, Joana
Dieser Datensatz enthält das High-Poly-Modell der Bodenplatte unter Amphion aus der Gipsabformung der Skulpturengruppe des Farnesischen Stiers, die sich im Antikenmuseum der Universität Leipzig (Inventarnummer G 661, TF 1) befindet. Das 3D-Modell basiert auf den hochaufgelösten Rohdaten und wurde durch Polygonreduktion optimiert. Dabei blieb die geometrische und visuelle Qualität erhalten, während die Dateigröße deutlich reduziert wurde.