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Many cellular functions depend on the physical properties of the cell's environment. Many bacteria have different types of surface appendages to enable adhesion and motion on various surfaces. is a social soil bacterium with two distinctly regulated modes of surface motility, termed the social motility mode, driven by type IV pili, and the adventurous motility mode, based on focal adhesion complexes.
View Article and Find Full Text PDFQuantum Dynamics Simulations of Exciton Polariton Transport.
Nano Lett
January 2025
Department of Chemistry, University of Rochester, Rochester, New York 14627, United States.
Recent experiments have shown that exciton transport can be significantly enhanced through hybridization with confined photonic modes in a cavity. The light-matter hybridization generates exciton-polariton (EP) bands, whose group velocity is significantly larger than the excitons. Dissipative mechanisms that affect the constituent states of EPs, such as exciton-phonon coupling and cavity loss, have been observed to reduce the group velocities in experiments.
View Article and Find Full Text PDFMoonlighting antibiotics: the extra job of modulating biofilm formation.
Trends Microbiol
January 2025
Laboratorio de Estructura y Fisiología de Biofilms Microbianos, Instituto de Biología Molecular y Celular de Rosario (IBR, CONICET-UNR), Predio CONICET Rosario, Ocampo y Esmeralda, (2000) Rosario, Argentina. Electronic address:
The widespread use of antibiotics to treat bacterial infections has led to the common perception that their only function is to inhibit growth or kill bacteria. However, it has become clear that when antibiotics reach susceptible bacteria at non-lethal concentrations, they perform additional functions that significantly impact bacterial physiology, shaping both individual and collective behaviors. A key bacterial behavior influenced by sub-lethal antibiotic doses is biofilm formation, a multicellular, surface-associated mode of growth.
View Article and Find Full Text PDFNurses' practical contributions to improving healthy and sustainable public spaces: an integrative review.
Rev Bras Enferm
January 2025
Universidade Regional do Cariri. Crato, Ceará, Brazil.
Objective: to identify knowledge production about nurses' contributions to improving healthy and sustainable public spaces.
Methods: an integrative review carried out in February 2023 in electronic databases. Studies that answered the research question and that were available in full, in Portuguese, English and Spanish, were included.
Full Quantum Dynamics Study for H Atom Scattering from Graphen.
J Phys Chem A
January 2025
Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay UMR 8214, 91405 Orsay, France.
This study deals with the understanding of hydrogen atom scattering from graphene, a process critical for exploring C-H bond formation and energy transfer during atom surface collision. In our previous work [Shi, L.; 2023, 159, 194102], starting from a cell with 24 carbon atoms treated periodically, we have achieved quantum dynamics (QD) simulations with a reduced-dimensional model (15D) and a simulation in full dimensionality (75D).
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