Welcome to RDSpace@UBT

University of Bayreuth's institutional repository for digital research data

RDSpace@UBT is freely accessible on the Internet and all provided metadata can be researched free of charge.
Research data in the repository are permanently freely available worldwide (alongside the accession by search engines, specialist search services, library catalogs, etc.) and can be cited as well as re-used under the specified legal conditions.

RDSpace@UBT offers

  • publication of scientific research data free of charge
  • worldwide and permanent free availability of the published data
  • the citability of published data (by assigning DOIs)
  • increased visibility of and by published data
  • standard retention periods of stored and published data
  • support of Open Access
Aerial view of the University of Bayreuth campusPhoto by University of Bayreuth
 

Communities in RDSpace@UBT

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Now showing 1 - 2 of 2

Recent Submissions

Research DataOpen Access
TEM data for the first observation of quenched Davemaoite to Ambient Conditions: its Electron Diffraction Pattern
(2025-09-11) Miyajima, Nobuyoshi
Calcium-rich silicate perovskite, davemaoite is often completely amorphized at ambient pressure, because the perovskite structure containing large element is unstable at 1 bar. However, we obtained for the first time an electron diffraction pattern of davemaoite in a transmission electron microscope. To understand why the unstable crystalline davemaoite lasted so long in the microscope, we investigate the textures with surrounding minerals using the electron-beam imaging and analyze the ambient volume from the diffraction patterns to understand the survival mechanisms. We find that the preservation of the crystalline state is most likely due to a static pressure generated by volume expansion of the surrounding amorphous glass transformed from the precursor denser crystalline state. The mechanism had not been demonstrated experimentally in a sub-micrometer microscopy before, even in the recovery of high-pressure minerals in shocked meteorites. Understanding this mechanism is important because the other high-pressure minerals at a small domain might survive at much lower pressure than the stability field at high pressure even though they are usually unquenchable. Further high-pressure minerals under a static stress can be discovered at ambient conditions by fine electron microscopy.
Research DataOpen Access
Replication climate R script
(2025-09-10) Greer, Christina; Meierrieks, Daniel; Stadelmann, David
Research DataOpen Access
Replication DHS 2005 climate dataset
(2025-09-10) Greer, Christina; Meierrieks, Daniel; Stadelmann, David