Results 41 to 50 of about 9,305 (228)
Open Astronomy, 2020 The hypothesis on the role of the meteoroid impacts in the comet nuclei splitting as well as acceleration of their heliocentric velocity are considered.
Guliyev Ayyub, Guliyev Rustam
doaj +1 more source
Advanced Science, EarlyView.Light‐switchable MSCs (MSC‐UCNPs) were constructed by intracellular incorporation of UCNPs. Upon 980 nm irradiation, UCNPs emitted localized ultraviolet light (365 nm), activating the ROS/HEXB/LAMP1 signaling pathway to suppress lysosome–multivesicular body fusion and thereby enhance exosome biogenesis. Embedded within an injectable hydrogel, MSC‐UCNPs
Tingting Wu +7 more
wiley +1 more source
Evaluation of the genotoxicity of some standart and eco-friendly detergents with Vicia faba
Caryologia, 2021 The increasing use of detergents as a result of rapid increase of population and irregular industrialization has a big role in the environmental pollution.
Özlem Aksoy, Aylin Horozal
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Comet Nuclei Composition and Evolution
Thanks to Rosetta orbiter's and Philae lander's data our knowledge of cometary nuclei composition has experienced a great advancement. The properties of 67P/CG nucleus are discussed and compared with other comets explored in the past by space missions.
Filacchione, Gianrico +3 more
openaire +2 more sources
Dielectric Elastomer Actuators as Safe and Effective Tools for Mechanostimulation of Human Cells
Advanced Intelligent Systems, EarlyView.Replicating physiological forces is crucial for realistic cell models. Dielectric elastomer actuators (DEAs) offer a soft alternative, though their high voltages raised toxicity concerns. We demonstrate that DEA stimulation causes no cell damage, cell death or cell‐cycle disruption, while activating mechanosensitive responses.
Simon Holzer +6 more
wiley +1 more source
Salud Pública de México, 2001 Objective. To assess the genotoxic activity of N-nitroso diethylamine (NDEA), maleic hydrazide (MH), and ethyl methane sulfonate (EMS) using two systems: the comet assay on nuclei from Tradescantia, and the pink mutation test on Tradescantia staminal ...
Alvarez-Moya Carlos +5 more
doaj
Redistribution of DNA loop domains in human lymphocytes under blast transformation with interleukin 2 [PDF]
The Ukrainian Biochemical Journal, 2016 At higher order levels chromatin fibers in interphase nuclei are organized into loop domains. Gene regulatory elements (promoters and enhancers) are often located near the sites of loop attachments.
K. S. Afanasieva +4 more
doaj +1 more source
Visualizing Specific Tubulin Isotypes and Pathogenic Variants in Cellular Microtubule Arrays
Cytoskeleton, EarlyView.ABSTRACT Eukaryotic cells depend on dynamic microtubule arrays to execute a wide range of functions vital for life. These microtubule filaments are formed through the polymerization of α/β‐tubulin proteins, which can be generated from numerous tubulin genes, or isotypes.
Sareen Fiaz +2 more
wiley +1 more source
Hubble Space Telescope Observations of the Interstellar Interloper 3I/ATLAS
The Astrophysical Journal LettersWe present high-angular-resolution observations of the third known interstellar interloper, 3I/ATLAS, from the Hubble Space Telescope. The object is clearly active at 3.8 au preperihelion, showing dust emitted from the hot, Sun-facing side of the nucleus
David Jewitt +4 more
doaj +1 more source
Six Outbursts of Comet 46P/Wirtanen
The Planetary Science Journal, 2021 Cometary activity is a manifestation of sublimation-driven processes at the surface of nuclei. However, cometary outbursts may arise from other processes that are not necessarily driven by volatiles.
Michael S. P. Kelley +37 more
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