Effect of terahertz irradiation on DNA damage repair in living cells. [PDF]
FEBS Open BioWe investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Ueno Y, Yamazaki S, Hoshina H, Harata M.
europepmc +2 more sources
Measuring Physical Properties at the Surface of a Comet Nucleus [PDF]
, 2021 The European Space Agency’s cornerstone mission Rosetta is due for launch in January 2003. It will perform a rendezvous with comet 46P/Wirtanen beyond 3 AU and, following an initial mapping phase, deploy a lander to a selected site on the nucleus surface.
Ball, Andrew Jonathan, Ball, Andrew J.
core +1 more source
Sclareol Inhibit Cell Growth and Induces Apoptosis via Activation of p53/p21 Signaling Pathways in Human Oral Squamous Cell Carcinoma Cells. [PDF]
J Biochem Mol ToxicolThe Schematic representation of the possible molecular mechanism of sclareol induces apoptosis through p53 and p21‐associated signaling in KB cells. ABSTRACT One of the most common prevalent forms of cancer in the world is oral squamous cell carcinoma (OSCC).
Nallu A +6 more
europepmc +2 more sources
Comets and the Origin of Life: Structure of Comets Nuclei and Dust [PDF]
Symposium - International Astronomical Union, 2004 From observations of fragmentation events, clues to a gravitational aggregates structure of some comets nuclei are given. From in-situ and remote light scattering observations, a very high porosity is estimated for dust in comae. These results suggest a possible survival of cometary organics during atmospheric entry at the epoch of intense bombardment.
A. Chantal Levasseur-Regourd +1 more
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Thermal model of water and CO activity of Comet C/1995 O1 (Hale-Bopp) [PDF]
, 2011 An investigation of the activity of Comet C/1995 O1 (Hale-Bopp) with a thermophysical nucleus model that does not rely on the existence of amorphous ice is presented.
H.U. Keller +8 more
core +1 more source
Stochastic modeling for the COMET-assay [PDF]
, 2003 We present a stochastic model for single cell gel electrophoresis (COMET-assay) data. Essential is the use of point process structures, renewal theory and reduction to intensity histograms for further data ...
Hösel, V. +4 more
core +1 more source
Genotoxicity of nitroso compounds and sodium dichromate in a model combining organ cultures of human nasal epithelia and the comet assay [PDF]
, 2001 Genotoxic effects of xenobiotics are a possible step in tumor initiation in the mucosa of the upper aerodigestive tract. Using the comet assay, detecting genotoxicity in human tissue has been restricted to single incubations in vitro, but in vivo most ...
Bergner, Albrecht +7 more
core +1 more source
Comet P/2021 HS (PANSTARRS) and the Challenge of Detecting Low-activity Comets
The Planetary Science Journal, 2023 Jupiter-family comet (JFC) P/2021 HS (PANSTARRS) only exhibits a coma within a few weeks of its perihelion passage at 0.8 au, which is atypical for a comet.
Quanzhi Ye +10 more
doaj +1 more source
Comparative Evaluation of Genotoxicity of Captan in Amphibian Larvae (Xenopus laevis and Pleurodeles waltl) Using the Comet Assay and the Micronucleus Test [PDF]
, 2006 Captan (N-trichloromethylthio-4-cyclohexene-1,2-dicarboximide) is a fungicide used to inhibit the growth of many types of fungi on plants used as foodstuffs.
Gauthier, Laury +8 more
core +1 more source
THERMAL SHADOWS AND COMPOSITIONAL STRUCTURE IN COMET NUCLEI [PDF]
The Astrophysical Journal, 2011 We use a fully 3-dimensional thermal evolution model to examine the effects of a non-uniform surface albedo on the subsurface thermal structure of comets. Surface albedo markings cast "thermal shadows", with strong lateral thermal gradients. Corresponding compositional gradients can be strong, especially if the crystallization of amorphous water ice is
Guilbert-Lepoutre, A., Jewitt, D.
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