Publications by authors named "N Kerber"
Magnetic skyrmions, topologically-stabilized spin textures that emerge in magnetic systems, have garnered considerable interest due to a variety of electromagnetic responses that are governed by the topology. The topology that creates a microscopic gyrotropic force also causes detrimental effects, such as the skyrmion Hall effect, which is a well-studied phenomenon highlighting the influence of topology on the deterministic dynamics and drift motion. Furthermore, the gyrotropic force is anticipated to have a substantial impact on stochastic diffusive motion; however, the predicted repercussions have yet to be demonstrated, even qualitatively.
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- Rubisco is a key enzyme in photosynthesis that converts carbon dioxide into organic compounds, but its function can be hindered by inhibitory sugars like xylulose-1,5-bisphosphate (XuBP).
- In Arabidopsis thaliana, the loss of two specific phosphatases negatively impacts plant growth and photosynthesis, but introducing XuBP phosphatase from Rhodobacter sphaeroides can reverse these effects.
- The study highlights the importance of a metabolic repair system that helps clear harmful by-products of Rubisco, which could aid in improving carbon fixation in plants.
The advent of X-ray free-electron lasers (XFELs) has revolutionized fundamental science, from atomic to condensed matter physics, from chemistry to biology, giving researchers access to X-rays with unprecedented brightness, coherence and pulse duration. All XFEL facilities built until recently provided X-ray pulses at a relatively low repetition rate, with limited data statistics. Here, results from the first megahertz-repetition-rate X-ray scattering experiments at the Spectroscopy and Coherent Scattering (SCS) instrument of the European XFEL are presented.
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- Pinning effects in skyrmion dynamics are crucial for both challenges and opportunities in skyrmionic devices, where understanding these effects can lead to new computing approaches.
- Using thermal skyrmion dynamics, researchers can examine the pinning effects in samples to map out the energy landscape associated with these skyrmions.
- Findings show that for larger skyrmions, pinning occurs at the boundary rather than the core, influenced by a complex energy landscape, leading to distorted skyrmion shapes and adaptable pinning site dynamics.
Background: The rise in mental health problems in the population directly or indirectly because of the coronavirus disease 2019 (COVID-19) pandemic is a major concern. The aim of this study was to investigate and compare independent predictors of symptoms of stress, anxiety, depression, and posttraumatic stress disorder (PTSD) in Brazilians one month after the implementation of measures of social distancing.
Methods: This cross-sectional study was performed using a web-based survey.