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Histone N-tails modulate sequence-specific positioning of nucleosomes.
J Biol Chem
December 2024
National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA. Electronic address:
Spatial organization of chromatin is essential for cellular functioning. However, the precise mechanisms governing sequence-dependent positioning of nucleosomes on DNA still remain unknown in detail. Existing algorithms, taking into account the sequence-dependent deformability of DNA and its interactions with the histone globular domains, predict rotational setting of only 65% of human nucleosomes mapped in vivo.
View Article and Find Full Text PDFHeading in Female Soccer: A Scoping Systematic Review.
Sports (Basel)
November 2024
International College of Football, Tongji University, No.1239, Siping Road, Yangpu, Shanghai 200092, China.
Heading is a key skill in soccer, and it is few investigated in females. Research on heading focused mostly on males and on young players. Data on females' soccer players are sparse and it is difficult to draw firm conclusions.
View Article and Find Full Text PDFStudies on Morphological Evolution of Gravure-Printed ZnO Thin Films Induced by Low-Temperature Vapor Post-Treatment.
Nanomaterials (Basel)
December 2024
Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Portici Research Centre, P.le E. Fermi 1, Portici, 80055 Naples, Italy.
In recent years, the morphology control of semiconductor nanomaterials has been attracting increasing attention toward maximizing their functional properties and reaching their end use in real-world devices. However, the development of easy and cost-effective methods for preparing large-scale patterned semiconductor structures on flexible temperature-sensitive substrates remains ever in demand. In this study, vapor post-treatment (VPT) is investigated as a potential, simple and low-cost post-preparative method to morphologically modify gravure-printed zinc oxide (ZnO) nanoparticulate thin films at low temperatures.
View Article and Find Full Text PDFStructural Design and Kinematic Modeling of Highly Biomimetic Flapping-Wing Aircraft with Perching Functionality.
Biomimetics (Basel)
December 2024
School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China.
Birds use their claws to perch on branches, which helps them to recover energy and observe their surroundings; however, most biomimetic flapping-wing aircraft can only fly, not perch. This study was conducted on the basis of bionic principles to replicate birds' claw and wing movements in order to design a highly biomimetic flapping-wing aircraft capable of perching. First, a posture conversion module with a multi-motor hemispherical gear structure allows the aircraft to flap, twist, swing, and transition between its folded and unfolded states.
View Article and Find Full Text PDFLamellodysideol, a new flexible marine norditerpenoid from the Indonesian marine sponge .
Nat Prod Res
December 2024
Department of Chemistry, Biology, and Marine Science, University of the Ryukyus, Nishihara, Japan.
One new acyclic norditerpenoid, lamellodysideol () was isolated from the Indonesian marine sponge together with known phytol (). The structure of was determined on the basis of spectral evidence and by comparison with known related molecules including optical rotation data. The relative configurations of and were proposed using quantum chemical calculation of NMR chemical shifts at DFT levels.
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