Results 61 to 70 of about 535,368 (303)
Advanced Theory and Simulations, EarlyView.The seal louse Echinophthirius horridus has uniquely shaped setae that may reduce drag during its host's dives. Using numerical simulations, this study demonstrates that their natural inclination promotes vortex formation, minimizing friction and energy loss. These findings provide insights into biological surface adaptations and may inspire the design
Anika Preuss +3 more
wiley +1 more source
A model of Mira's cometary head/tail entering the Local Bubble
, 2010 We model the cometary structure around Mira as the interaction of an AGB wind from Mira A, and a streaming environment. Our simulations introduce the following new element: we assume that after 200 kyr of evolution in a dense environment Mira entered the
A. C. Raga +22 more
core +1 more source
Comparison of comet assay parameters for estimation of genotoxicity by sum of ranking differences [PDF]
, 2013 Genotoxic potential of waters in six rivers and reservoirs from Serbia was monitored in different tissues of chub (Squalius cephalus L. 1758) with the alkaline comet assay.
Gačić, Z. +6 more
core +1 more source
Prospects for the In Situ detection of Comet C/2019 Y4 ATLAS by Solar Orbiter [PDF]
, 2020 The European Space Agency's Solar Orbiter spacecraft will pass approximately downstream of the position of comet C/2019 Y4 (ATLAS) in late May and early June 2020.
Afghan, Qasim +2 more
core +2 more sources
Tellus A: Dynamic Meteorology and Oceanography, 1957 According to Biermann’s theory the repulsive force in comet tails is due to a corpuscular radiation from the sun. It is shown that some of the difficulties of this theory can be overcome if the assumed radiation consists of beams with a frozen-in magnetic field of the same type as required in the electric field theory of magnetic storms and aurorae ...
openaire +2 more sources
Dendritic organization of actin comet tails [PDF]
Current Biology, 2001 Polymerization of actin filaments is necessary for both protrusion of the leading edge of crawling cells and propulsion of certain intracellular pathogens, and it is sufficient for generating force for bacterial motility in vitro. Motile intracellular pathogens are associated with actin-rich comet tails containing many of the same molecular components ...
Lisa A. Cameron +4 more
openaire +3 more sources
IncRNA‐ZFAS1, an Emerging Gate‐Keeper in DNA Damage‐Dependent Transcriptional Regulation
Advanced Science, EarlyView.LncZFAS1 plays a crucial role during DNA damage response in mammalian cells. Loss of lncZFAS1 results in deficient DNA lesion removal and reduced cell viability. Mechanistically, lncZFAS1 modulates RNAPII phosphorylation and transcription and thereby promotes both GG‐NER and TC‐NER upon UV damage.
Jiena Liu +10 more
wiley +1 more source
Soliton model of formation of spherical clouds in the cometary plasma tail
Вісник Астрономічної школи, 2013 On the basis of photographic images of comet Halley, obtained by K.I.Churyumov in 1985–1986, soliton model of spherical and nonregular condensations in cometary plasma tails, is proposed. Parameters of the soliton (spherical cloud), which observed in the
K. I. Churyumov, Yu. G. Rapoport
doaj +1 more source
Advanced Science, EarlyView.This study establishes a diesel engine exhaust (DEE)‐induced malignant transformation model in bronchial epithelial cells. Whole genome sequencing（WGS） and RNA‐seq reveal DEE‐induced mutational signatures and gene expression profiles. Mechanistically, DEEaffect polymerase epsilon (POLE) and mismatch repair, driving genomic instability and promoting ...
Pimei Zhang +8 more
wiley +1 more source
Advanced Science, EarlyView.A multifunctional anisotropic Au‐Pd heterostructured nanosystem is developed that incorporates a plasmonically enhanced Au‐Pd core, with a shell composed of a biodegradable, Mn‐doped targeting peptide. The nanosystem integrates photothermal, radiotherapeutic, and immunomodulatory functions.
Cheng Chen +8 more
wiley +1 more source