Results 11 to 20 of about 3,231,447 (290)

Measuring Physical Properties at the Surface of a Comet Nucleus [PDF]

open access: yes, 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

Loss of CYLD on Chromosome 16q Impairs Homologous Recombination and Genomic Stability Through TIRR Degradation. [PDF]

open access: yesAdv Sci (Weinh)
Chromosome 16q loss drives genomic instability through disruption of the CYLD–TIRR–53BP1 axis. CYLD preserves homologous recombination by stabilizing TIRR and limiting 53BP1 accumulation at DNA double‐strand breaks. CYLD deficiency redirects repair toward error‐prone non‐homologous end joining, promotes mutational burden and homologous recombination ...
Lu M   +14 more
europepmc   +2 more sources

On the dynamics of comets in extrasolar planetary systems [PDF]

open access: yes, 2020
Since very recently, we acquired knowledge on the existence of comets in extrasolar planetary systems. The formation of comets together with planets around host stars now seems evident. As stars are often born in clusters of interstellar clouds, the interaction between the systems will lead to the exchange of material at the edge of the clouds ...
Dvorak, Rudolf   +2 more
openaire   +2 more sources

X-Ray Emission Spectroscopy Analysis for Near-Asteroid Belt of Atmospheric of the Comets

open access: yesIraqi Journal of Physics, 2022
         According to Chandra Survey Observatory Near-Asteroid Belt Comets, the solar wind's contact with the comet produces a variety of spectral characteristics. The study of X-ray spectra produced by charge exchange is presented here. The spectrum of
Rasha S. Najm   +2 more
doaj   +1 more source

Anti-migratory effect of vinflunine in endothelial and glioblastoma cells is associated with changes in EB1 C-terminal detyrosinated/tyrosinated status. [PDF]

open access: yesPLoS ONE, 2013
We previously showed that vinflunine, a microtubule-targeting drug of the Vinca-alkaloid family exerted its anti-angiogenic/anti-migratory activities through an increase in microtubule dynamics and an inhibition of microtubule targeting to adhesion sites.
Amandine Rovini   +5 more
doaj   +1 more source

ASSIST: An Ephemeris-quality Test-particle Integrator

open access: yesThe Planetary Science Journal, 2023
We introduce ASSIST, a software package for ephemeris-quality integrations of test particles. ASSIST is an extension of the REBOUND framework and makes use of its IAS15 integrator to integrate test-particle trajectories in the field of the Sun, Moon ...
Matthew J. Holman   +7 more
doaj   +1 more source

Stochastic modeling for the COMET-assay [PDF]

open access: yes, 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

Spectrometer Testing: Dark frame evaluation of StellarNet Black Comet spectrometer [PDF]

open access: yes, 2017
This document presents an evaluation of the dark current present in a StellarNet Black Comet spectrometer for potential applications in a number of research projects within the Sensors and Instrumentation Research Group and the Institute of Materials and
Smith, DR, Hobson, PR
core   +5 more sources

Interactions between solar wind and comets

open access: yes地球与行星物理论评, 2023
Comets are a class of small, irregularly shaped objects in a solar system consisting mainly of volatile materials. During the approach of a comet to the sun, the neutral component of the volatile matter released by heating in the nucleus becomes charged ...
Chuanpeng Hou, Jiansen He, Jingyu Peng
doaj   +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]

open access: yes, 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

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