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Appearance of an unusual sign on optical coherence tomography in diabetic maculopathy: subretinal onion rings.
Arq Bras Oftalmol
January 2025
Ophthalmology Department, Ulucanlar Eye Training and Research Hospital, Ankara, Turkey.
Quantum Analog of Landau-Lifshitz-Gilbert Dynamics.
Phys Rev Lett
December 2024
Uppsala University, Department of Physics and Astronomy, Box 516, SE-751 20 Uppsala, Sweden.
The Landau-Lifshitz-Gilbert (LLG) and Landau-Lifshitz (LL) equations play an essential role for describing the dynamics of magnetization in solids. While a quantum analog of the LL dynamics has been proposed in [Phys. Rev.
View Article and Find Full Text PDFIsolation and structure determination of a new antibacterial lanthipeptide derived from the marine derived bacterium Lysinibacillus sp.CTST325.
World J Microbiol Biotechnol
January 2025
Graduate School of Science and Technology, Shizuoka University, Shizuoka, Japan.
Marine resources are attractive for screening new useful bacteria. From a marine sediment sample, we performed isolation and screening of bacterial strains in search of new bioactive compounds. HPLC and ESI-MS analysis indicated that the new bacterium, Lysinibacillus sp.
View Article and Find Full Text PDFThe B Chromosome of Pseudococcus viburni: A Selfish Chromosome that Exploits Whole-Genome Meiotic Drive.
Genome Biol Evol
January 2025
School of Biological Sciences, Institute of Ecology and Evolution, The University of Edinburgh, Edinburgh EH9 3FL, UK.
Meiosis is generally a fair process: each chromosome has a 50% chance of being included into each gamete. However, meiosis can become aberrant with some chromosomes having a higher chance of making it into gametes than others. Yet, why and how such systems evolve remains unclear.
View Article and Find Full Text PDFAn Unusual Meroterpenoid and Two New Steroids from Fungus Penicillium fellutanum and Their Bioactivities.
Chem Biodivers
January 2025
Baoji University of Arts and Sciences, College of Chemistry and Chemical Engineering, No. 1 Hi-Tech Avenue, 721013, Baoji, CHINA.
An unusual clathrate-type meroterpenoid isoatlantinone A (1), two new steroids acrocalysterols E (2) and F (3), together with fifteen known compounds (4-18) were separated from a plant-associated fungus Penicillium fellutanum. Their structures and absolute configurations were established based on spectroscopic data (NMR and HRESIMS), electronic circular dichroism (ECD) and modified Mosher's method. Notably, compound 1 represents an unusual highly oxygenated meroterpenoid derivative with a unique caged bioxatetracyclo-[6.
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