Publications by authors named "Gustav Eklund"
Introduction: To improve the utilization of continuous- and flash glucose monitoring (CGM/FGM) data we have tested the hypothesis that a machine learning (ML) model can be trained to identify the most likely root causes for hypoglycemic events.
Methods: CGM/FGM data were collected from 449 patients with type 1 diabetes. Of the 42,120 identified hypoglycemic events, 5041 were randomly selected for classification by two clinicians.
Article Synopsis
- The article DOI: 10.1103/PhysRevLett.128.033401 has been updated or amended.
- The corrections are important for accurate interpretation of the research findings.
- Readers should refer to the corrected version for the most reliable information.
Article Synopsis
- Negative ions play a crucial role in various scientific fields such as interstellar chemistry and anti-matter research, where their unique properties are influenced by electron-correlation effects.
- Traditional methods for studying these ions face challenges due to their loosely bound nature and limited optical transitions, hindering high-resolution detection techniques.
- A new method has been developed that accurately measures negative ion binding energies with significantly higher precision, utilizing laser manipulation and a cryogenic ion-beam storage ring, leading to a reported electron affinity of 1.461 112 972(87) eV for oxygen.
Article Synopsis
- - The study investigates how Mg atoms are generated from reactions between Mg^{+} and D^{-} at low collision energies (around 59 meV) using a specific experimental method.
- - The results show significant differences when compared to previous full-quantum theories, indicating that past calculations have underestimated the total reaction rate by nearly double in low-energy scenarios.
- - The researchers suggest that using asymptotic model calculations provides more accurate results and advocate for applying this approach to study more complicated systems, which is important for understanding stellar conditions.
The mutual neutralisation of O with O has been studied in a double ion-beam storage ring with combined merged-beams, imaging and timing techniques. Branching ratios were measured at the collision energies of 55, 75 and 170 (± 15) meV, and found to be in good agreement with previous single-pass merged-beams experimental results at 7 meV collision energy. Several previously unidentified spectral features were found to correspond to mutual neutralisation channels of the first metastable state of the cation (O(D), ≈ 3.
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- Researchers at Stockholm University's DESIREE facility measured the cooling lifetimes and detachment energies for three sizes of carbon anions (C3, C4, and C5) in a super-cool environment with low pressure.
- They created two-dimensional photodetachment spectra that showed how the anions lost energy over time, revealing cooling lifetimes of 3.1 s, 6.8 s, and 24 s for each respective anion size.
- The study's findings confirmed the occurrence of radiative cooling and established a model for simulating cooling dynamics, which could be useful for exploring other molecular anions in future research.