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A Direct Measurement of the Absolute Energies of Protonated Gly‐Pro‐Gly‐Gly Conformations Using Ion Mobility Spectrometry and Guided Ion Beam Tandem Mass Spectrometry

ChemPhysChem, Volume 26, Issue 12, June 23, 2025.
Relative energies of the cis and trans conformers of the protonated tetrapeptide, Gly‐Pro‐Gly‐Gly, selected by ion mobility spectrometry are measured using threshold collision‐induced dissociation. The trans conformation was found to be more stable than the cis conformation by 4.5 ± 2.5 kJ mol−1 at 0 K, a value in agreement with several levels of ...
Brandon C. Stevenson +3 more
wiley +1 more source

Software defect prediction based on residual/shuffle network optimized by upgraded fish migration optimization algorithm. [PDF]

Sci Rep
Liu Z, Su T, Zakharov MA, Wei G, Lee S.
europepmc +1 more source

In Situ X‐ray Diffraction Studies on the Reduction of U3O8 by Various Reducing Agents

Chemistry – A European Journal, Volume 31, Issue 34, June 17, 2025.
The reduction of U₃O₈ by hydrogen, PVDF, and CaH₂ is investigated using continuous in situ X‐ray diffraction. Phase transitions, oxygen loss, and intermediate structures are analyzed. The study elucidates how different reducing environments influence reaction pathways and final products, offering new insight into uranium oxide chemistry relevant to ...
Marvin Michak +2 more
wiley +1 more source

Enhanced semantic classification of microbiome sample origins using Large Language Models (LLMs)

Gaio D +6 more
europepmc +1 more source

The human auditory cortex concurrently tracks syllabic and phonemic timescales via acoustic spectral flux. [PDF]