Results 51 to 60 of about 329,629 (202)

Evaluation of genetic damage induced by glyphosate isopropylamine salt using Tradescantia bioassays

Genetics and Molecular Biology, 2011
Glyphosate is noted for being non-toxic in fishes, birds and mammals (including humans). Nevertheless, the degree of genotoxicity is seriously controversial.
Carlos Alvarez-Moya, Mónica Reynoso Silva, Alma Rosa Villalobos Arámbula, Alfonso Islas Sandoval, Hugo Castañeda Vasquez, Rosa María González Montes   +5 more
doaj  

The Large Smooth Patch on Comet 9P/Tempel 1: Remnant of a Recent Past Event

The Planetary Science Journal
We present a comprehensive reassessment of the region containing the large smooth patch on comet 9P/Tempel 1, leveraging data from the Deep Impact and Stardust-NExT missions, an updated stereophotoclinometry-based shape model, and numerical simulations ...
J. L. Rizos, T. L. Farnham, J. M. Sunshine, J. L. Kloos, J. L. Ortiz   +4 more
doaj   +1 more source

Renal Tubular Epithelial Cells Senescence Induced by 1‐Aminopyrene Activates Fibroblast via BRD4 Driven Senescence‐Associated Secretory Phenotype Signaling [PDF]

J Biochem Mol Toxicol
1‐AP induced genomic instability and senescence in RTECs sustaining BRD4‐dependent SAPS transcription and paracrine fibroblast activation. Targeting BRD4 may treat pollution‐related CKD. ABSTRACT Epidemiological evidence links environmental pollution to chronic kidney disease (CKD).
Katarkar A, Bagde A, Maurya D, Chahare B, Mane N, Sivanesan S, Krishnamurthi K.   +6 more
europepmc   +2 more sources

High‐Content Screening Comparison of 1R6F Cigarette Smoke Extract and Selected Heated Tobacco and Electronic Vapour Product Aerosol Extracts in Endothelial and Bronchial Epithelial Cell Models

Journal of Applied Toxicology, EarlyView.
ABSTRACT Cigarettes induce oxidative stress and DNA damage, processes that contribute to cardiovascular and pulmonary disease. High content screening (HCS) is an increasingly valuable tool for comparative toxicology because it enables simultaneous quantification of multiple mechanistic endpoints at single‐cell resolution. In this study, HCS was used to
Edgar Trelles Sticken, Konstantinos Papikinos, Fiona Chapman, Roman Wieczorek, Sarah Jean Pour, Torge Evenburg, Sandra Otte, Tiandan Wu, Liam Simms, Matthew Stevenson   +9 more
wiley   +1 more source

Postperihelion Coma Composition of the Interstellar Comet 3I/ATLAS from Optical Spectroscopy

The Astrophysical Journal Letters
We present multiepoch optical spectroscopy of the interstellar comet 3I/ATLAS obtained between 2025 December and 2026 January (heliocentric distances of 1.8–3.3 au), yielding postperihelion production rates and mixing ratios for CN, C _3 , C _2 , CH, and
Ruining Zhao, Xiliang Zhang, Bin Yang, Xiangyu Fan, Shu Wang, Yang Huang, Jifeng Liu   +6 more
doaj   +1 more source

Origin and Early Evolution of Comet Nuclei: Workshop honouring Johannes Geiss on the occasion of his 80th birthday

, 2008
Comet nuclei are the most primitive bodies in the solar system. They have been created far away from the early Sun and it is supposed that their material has been altered the least since their formation.
Owen, T, Huebner, W, Balsiger, H, Altwegg, K, Schulz, R   +4 more
core   +1 more source

Single Versus Double Screw Extrusion: Impact on Mechanical Performance and Crack Resistance for a Virgin, Recycled, and Blended Polypropylene

Polymer Engineering &Science, EarlyView.
Schematic overview of the study approach and key findings. ABSTRACT To evaluate the influence of extrusion on material performance, three processing methods, single extrusion (1x Ex), double extrusion (2x Ex), and double screw compounding (C), were investigated for virgin polypropylene (vPP), recycled PP (rPP), and a blend containing 10% rPP (rPP10 ...
J. Pötzlbauer, J. Geier, B. Haar, S. Schuschnigg, M. Messiha, T. Koch, C. Maurer, G. Pinter, F. Arbeiter   +8 more
wiley   +1 more source

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, M. I. Chopei, A. V. Lozovik, S. R. Rushkovsky, A. V. Sivolob   +4 more
doaj   +1 more source

Comments on comet shapes and aggregation processes [PDF]

, 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  

Cytogenotoxic Effects of Fluopyram in Allium cepa Root Cells Involving Microtubule Disruption

Environmental Toxicology, EarlyView.
ABSTRACT Fluopyram is a next‐generation fungicide widely used in agriculture; however, its persistence in soils and mobility toward aquatic systems have raised concerns regarding potential ecotoxicological risks. This study evaluated the cytogenotoxic effects of a commercial fluopyram‐based pesticide formulation on Allium cepa root meristem cells ...
Carlos Filipe Camilo‐Cotrim, Natanael Alves da Silva, Gabriela Gomes Lima, Igor Rodrigues Vasconcelos, Luciana Souza Ondei, Elisa Flávia Luiz Cardoso Bailão, Antônio Sérgio Nakao de Aguiar, Marcelino Benvindo‐Souza, Leonardo Luiz Borges, Virgínia Damin, Luciane Madureira Almeida   +10 more
wiley   +1 more source