Results 31 to 40 of about 329,629 (202)

Comet nuclei primordial aggregation effects on their internal structure

, 2009
Comet nuclei have a low density ( 500 kg.m-3, e.g. [1]) and are easily disrupted. In situ studies have unveiled surface features hinting at a pervasive internal layered structure on 9P/Tempel 1 [2].
Hadamcik, Edith, Lasue, Jérémie, Levasseur-Regourd, Anny Chantal, Kofman, W., Botet, R.   +4 more
core   +3 more sources

Conditions for the formation of anomalous tail of comet

Open Astronomy, 2019
The time and velocity of ejection of dust particles of anomalous tails from cometary nuclei are determined. It is revealed that some comets cause the formation of an anomalous tail is the collision of their comet nucleus with other bodies of the Solar ...
Safarov Abduljalol G., Ibadinov Khursand I.   +1 more
doaj   +1 more source

ON COLLISION OF SECONDARY NUCLEI OF COMET P/SHOEMAKER-LEVI 9 (1993E) WITH JUPITER

Odessa Astronomical Publications, 2017
In July 1994 the comet P/Shoemaker-Levi which in July 1992 split in the Roche lobe of Jupiter onto 21 fragments, then collided with Jupiter at the altitude near – 45°.
K. I. Churyumov, V. G. Kruchinenko
doaj   +1 more source

Ameliorative potential of β-1,3-D-Glucan on acrylamide-induced cytogenetic alterations in mice. [PDF]

Journal of Bioscience and Applied Research, 2016
Acrylamide (AA) is formed in food during heat preparation (frying and baking), causing DNA toxicity. So, the aim of this study is applied β-1,3-D-Glucan (BDG) as a natural polysaccharide ameliorative to reduce the DNA hepatotoxicity and genotoxicity of ...
Mohamed A. Ismail
doaj   +1 more source

Predictions of the solar wind interaction with Comet Grigg-Skjellerup [PDF]

, 1992
The planned encounter of the Giotto spacecraft with comet Grigg-Skjellerup on 10th July 1992 promises to extend our knowledge of the solar wind interaction with comets substantially.
Johnstone, AD, Huddleston, DE, Coates, AJ   +2 more
core  

TESS-CoMET

, 2018
R script to calculate CoMET function in ...
Guillermo Ortí (69121), Ortí, Guillermo, Rafael Rivero-Vega (6001235), Davis, Aaron, Rivero-Vega, Rafael, Emanuell Duarte Ribeiro (6001232), Aaron Davis (205288), Ricardo Betancur-R (245801), Duarte Ribeiro, Emanuell, Betancur-R, Ricardo   +9 more
core   +1 more source

The CoPhyLab comet-simulation chamber [PDF]

, 2021
The Comet Physics Laboratory (CoPhyLab) is an international research program to study the physical properties of cometary analog materials under simulated space conditions.
C. Kreuzig, E. Kaufmann, Lethuillier, A., Otto, K., Tiefenbacher, P., Tiefenbacher, P,, Blum, J.,, J. Blum, Sierks, H., M. Schweighart, B. Gundlach, Haack, D., Schweighart, M., Tiefenbacher, P.,, E. Kührt, Feller, C., Kaufmann, E., K. Otto, D. Bischoff, Pommerol, A., Bischoff, D.,, Güttler, C.,, Lethuillier, A.,, G. Kargl, Kreuzig, C.,, Molinski, N. S.,, A. Lethuillier, Kührt, E.,, Haack, D.,, Bischoff, D., Knollenberg, J., Kreuzig, C., Gundlach, B.,, T. Gilke, Kührt, E., Otto, K.,, Kaufmann, Erika,, A. Pommerol, H. Sierks, Schweighaert, M., P. Tiefenbacher, Sierks, H.,, Hänni, N.,, C. Feller, Pommerol, A.,, Capelo, H.,, Gilke, T., Macher, W., Gilke, T.,, W. Macher, Molinski, N.S., Hänni, N., N. S. Molinski, Capelo, H., H. Capelo, C. Güttler, Blum, J., Molinski, N., Kargl, G.,, Kargl, G., Schweighart, M.,, Gundlach, B., Macher, W.,, Molinski, N. S., D. Haack, N. Hänni, Feller, C.,, Knollenberg, J.,, Güttler, C., J. Knollenberg   +69 more
core   +2 more sources

Stimulation of OGG1 Enhances Oxidative DNA Damage Repair and Protects Against Acute Liver Failure by Acetaminophen

Advanced Science, EarlyView.
Chemical switching of OGG1 by CMM‐98 accelerates oxidative DNA damage repair and enhances hepatocyte resilience during acetaminophen‐induced acute liver injury. By promoting efficient processing of OGG1‐generated repair intermediates, CMM‐98 reduces oxidative damage, preserves cellular integrity, and protects against acute liver failure, identifying ...
Zhenjun Zhao, Rahul Upadhyay, Alice Eddershaw, Chenchen Wang, Yudong Zhao, Olov Wallner, Jinhye Ryu, Nayere Taebnia, Heather Gildie, Emma Scaletti‐Hutchinson, Jonathan R. Davies, Nicole Ziegler, Andreas Krämer, Samantha C. Robinson, Marek Varga, Karolina Singerova, Zuzanna Szaruga, Elisée Wiita, İrşil Güneş, Sheila S. David, Stefan Knapp, Aimo Kannt, Miguel de Vega, Pål Stenmark, Volker M Lauschke, Maurice Michel   +25 more
wiley   +1 more source

Splitting of Long-period Comet C/2018 F4 (PANSTARRS)

The Astronomical Journal, 2023
Long-period comet C/2018 F4 (PANSTARRS) was observed to show duplicity of its inner region in 2020 September, suggestive of a splitting event. We here present analyses of our observations of the comet taken from the LCO Outbursting Objects Key project ...
Man-To Hui, Michael S. P. Kelley, Denise Hung, Tim Lister, Joseph Chatelain, Edward Gomez, Sarah Greenstreet   +6 more
doaj   +1 more source

Analytical study of comet nucleus samples [PDF]

, 1989
Analytical procedures for studying and handling frozen (130 K) core samples of comet nuclei are discussed. These methods include neutron activation analysis, x ray fluorescent analysis and high resolution mass ...
Albee, A. L.
core