Results 111 to 120 of about 312,980 (227)

Dielectric Elastomer Actuators as Safe and Effective Tools for Mechanostimulation of Human Cells

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 9, September 2026.
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

Comments on comet shapes and aggregation processes [PDF]

open access: yes, 1989
An important question for a comet mission is whether comet nuclei preserve information clarifying aggregation processes of planetary matter. New observational evidence shows that Trojan asteroids, as a group, display a higher fraction of highly-elongated
Hartmann, William K.
core  

Acrylamide‐Induced Developmental and Molecular Toxicity in Drosophila melanogaster: The Role of Vanillic Acid in CncC/Keap1 Modulation

open access: yesJournal of Biochemical and Molecular Toxicology, Volume 40, Issue 9, September 2026.
Vanillic acid, a dietary phenolic, dose‐dependently protects Drosophila melanogaster from acrylamide‐induced oxidative damage, DNA strand breaks, and developmental toxicity by modulating CncC/Keap1 redox signaling—establishing vanillic acid as a candidate natural protective agent against a major environmental contaminant.
Fahriye Zemheri‐Navruz   +2 more
wiley   +1 more source

DH88 Comet, G-ACSR

open access: yes, 1934
1934 London to Australia air race. Refuelling. Entrant no.

core  

Galectin‐4: A Novel Mediator of Human Intervertebral Disc Degeneration

open access: yesJOR SPINE, Volume 9, Issue 3, September 2026.
Galectin‐4 correlates with intervertebral disc degeneration, independent of age, sex, or underlying pathology. Functionally, it activates NF‐κB signaling and induces pro‐inflammatory and matrix‐degrading responses, with stronger effects in nucleus pulposus cells, identifying it as a novel molecular player in disc degeneration.
Christine Strauss   +12 more
wiley   +1 more source

Investigation of Split Comet 240P/NEAT

open access: yesThe Astronomical Journal
We present time-series observations of the split comet 240P/NEAT near perihelion, obtained using the Nordic Optical Telescope. The brighter component, 240P-A, has an estimated radius in the range 400–600 m, and loses dust at the peak rate 130 kg s ^−1 ...
David Jewitt, Jane Luu, Yoonyoung Kim
doaj   +1 more source

Dust and gas emission from cometary nuclei: the case of comet 67P/Churyumov–Gerasimenko

open access: yesAdvances in Physics: X, 2018
Comets display with decreasing solar distance an increased emission of gas and dust particles, leading to the formation of the coma and tail. Spacecraft missions provide insight into the temporal and spatial variations of the dust and gas sources located
Tobias Kramer   +4 more
doaj   +1 more source

Advances in Cold‐Plasma Technology for Legume Seeds: Mechanisms, Nutritional Quality Improvement, Food Safety and Sustainable Agriculture

open access: yesLegume Science, Volume 8, Issue 3, September 2026.
ABSTRACT Cold plasma (CP), a nonthermal ionised gas rich in reactive oxygen and nitrogen species (RONS), has emerged as a sustainable technology for enhancing legume production and quality. This review summarises current advances in CP applications in legumes, focusing on seed germination, seedling vigour, nutrient enhancement, antinutrient reduction ...
Jannatul Ferdous   +5 more
wiley   +1 more source

Evaluation of genotoxic activity of maleic hydrazide, ethyl methane sulfonate, and N-nitroso diethylamine in Tradescantia Evaluación de la genotoxicidad de hidrazida málica, N-nitroso dietilamina, y etil metano sulfonato, en núcleos de Tradescantia, por medio de la prueba del cometa

open access: yesSalud 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 ...
Carlos Alvarez-Moya   +5 more
doaj  

DUSP12 Regulates NAT10‐Mediated RNA Acetylation to Modulate DNA Repair and Therapeutic Response in Hepatocellular Carcinoma

open access: yesMedComm, Volume 7, Issue 9, September 2026.
In hepatocellular carcinoma (HCC) cells exposed to doxorubicin, DUSP12 depletion maintains NAT10 phosphorylation, reducing its acetyltransferase activity, which leads to reduced ac4C RNA acetylation, DNA damage response, and DNA break repair, with consequent tumor sensitization.
Viktor Kalbermatter Boell   +6 more
wiley   +1 more source

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