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1. Older adults with visual disabilities and fear of falling associated with activities of daily living

   https://doi.org/10.1504/IJHFE.2021.10037372  

   Kim, Hyung Nam (January 2021, International Journal of Human Factors and Ergonomics)

   null (Ed.)
2. Mitoribosome structure with cofactors and modifications reveals mechanism of ligand binding and interactions with L1 stalk

   https://doi.org/10.1038/s41467-024-48163-x  

   Singh, Vivek; Itoh, Yuzuru; Del’Olio, Samuel; Hassan, Asem; Naschberger, Andreas; Flygaard, Rasmus Kock; Nobe, Yuko; Izumikawa, Keiichi; Aibara, Shintaro; Andréll, Juni; et al (December 2024, Nature Communications)

   Abstract The mitoribosome translates mitochondrial mRNAs and regulates energy conversion that is a signature of aerobic life forms. We present a 2.2 Å resolution structure of human mitoribosome together with validated mitoribosomal RNA (rRNA) modifications, including aminoacylated CP-tRNA^Val. The structure shows how mitoribosomal proteins stabilise binding of mRNA and tRNA helping to align it in the decoding center, whereas the GDP-bound mS29 stabilizes intersubunit communication. Comparison between different states, with respect to tRNA position, allowed us to characterize a non-canonical L1 stalk, and molecular dynamics simulations revealed how it facilitates tRNA transitions in a way that does not require interactions with rRNA. We also report functionally important polyamines that are depleted when cells are subjected to an antibiotic treatment. The structural, biochemical, and computational data illuminate the principal functional components of the translation mechanism in mitochondria and provide a description of the structure and function of the human mitoribosome. 

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3. Structure and vibrational spectroscopy of complexes of Al+ and Al2+ with ethane

   https://doi.org/10.1063/5.0266163  

   Ashraf, Muhammad Affawn; Metz, Ricardo B (April 2025, The Journal of Chemical Physics)

   The binding motifs of clusters of Al+ and Al2+ with ethane, Alx+(C2H6)n (x = 1, 2; n = 1–3), are determined using vibrational photodissociation spectroscopy in the C–H stretching region (2550–3100 cm−1) in conjunction with spectra calculated using density functional theory. The relative energies of candidate structures are determined with the B3LYP-D3 and ωB97X-D density functionals and the 6–311++G(d,p) basis set. Local mode Hamiltonian calculations are better able to reproduce the spectra than scaled harmonic calculations, due to contributions from bending overtones and combination bands. Vibrational photodissociation spectra show a red shift in the stretching frequencies of C–H bonds that are proximate to the cation. This red shift decreases as the number of ethanes increases. For Al+(C2H6)n (n = 1–3), side-on (T-shaped) binding of the metal is preferred to end-on binding, and subsequent ligands bind on the same side of the cation. Similarly, for Al2+(C2H6)n (n = 1–3), T-shaped configurations in which the C–C and Al–Al bonds are approximately perpendicular and the ethane binds side-on to the Al2+ are preferred. In Al2+(C2H6)n (n = 1–3) complexes, intense bands are observed, which are due to overtones and combinations of symmetric deformations in Fermi resonance with the red-shifted C–H stretches. 

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4. Motion of Grain Boundaries with Dynamic Lattice Misorientations and with Triple Junctions Drag

   https://doi.org/10.1137/19M1265855  

   Epshteyn, Yekaterina; Liu, Chun; Mizuno, Masashi (January 2021, SIAM Journal on Mathematical Analysis)

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5. Demography with drones: detecting growth and survival of shrubs with unoccupied aerial systems

   https://doi.org/10.1111/rec.14106  

   Olsoy, Peter_J; Zaiats, Andrii; Delparte, Donna_M; Germino, Matthew_J; Richardson, Bryce_A; Roser, Anna_V; Forbey, Jennifer_S; Cattau, Megan_E; Caughlin, T_Trevor (January 2024, Restoration Ecology)

   Large‐scale disturbances, such as megafires, motivate restoration at equally large extents. Measuring the survival and growth of individual plants plays a key role in current efforts to monitor restoration success. However, the scale of modern restoration (e.g., >10,000 ha) challenges measurements of demographic rates with field data. In this study, we demonstrate how unoccupied aerial system (UAS) flights can provide an efficient solution to the tradeoff of precision and spatial extent in detecting demographic rates from the air. We flew two, sequential UAS flights at two sagebrush (Artemisia tridentata) common gardens to measure the survival and growth of individual plants. The accuracy of Bayesian‐optimized segmentation of individual shrub canopies was high (73–95%, depending on the year and site), and remotely sensed survival estimates were within 10% of ground‐truthed survival censuses. Stand age structure affected remotely sensed estimates of growth; growth was overestimated relative to field‐based estimates by 57% in the first garden with older stands, but agreement was high in the second garden with younger stands. Further, younger stands (similar to those just after disturbance) with shorter, smaller plants were sometimes confused with other shrub species and bunchgrasses, demonstrating a need for integrating spectral classification approaches that are increasingly available on affordable UAS platforms. The older stand had several merged canopies, which led to an underestimation of abundance but did not bias remotely sensed survival estimates. Advances in segmentation and UAS structure from motion photogrammetry will enable demographic rate measurements at management‐relevant extents. 

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