Results 41 to 50 of about 337,815 (176)
Comets: Gases, ices, grains and plasma [PDF]
, 1981 The program and abstracts of the 97 papers delivered at the colloquium are presented. Cometary nuclei, comet dust, the coma, ion tails, several comet missions, and cometary origin and evolution were ...
Wilkening, L. L.
core
Detection of Synchronic Bands in the Dust Tail of Comet C/Hale-Bopp 1995 O1 [PDF]
Publications of the Astronomical Society of Japan, 1997 An imaging observation of the dust tail of Comet C/Hale-Bopp 1995O1 was carried out from 1997 March 5 through 9, using a wide-field CCD imaging camera. We detected several striae of degree scale in the dust tail, which could be recognized for the whole observed period.
Jun-Ichi Watanabe +4 more
openaire +1 more source
Advanced Science, Volume 13, Issue 54, 28 September 2026.ANXA2+ sEVs promote cisplatin resistance in ATC by stabilizing the SRC/LDHA interaction, increasing LDHA phosphorylation and activity, and lactate production. Elevated lactate levels promote KAT5‐mediated lactylation of XRCC5 at lysine 265, enhancing its binding to XRCC6.
Shanshan Su +4 more
wiley +1 more source
Comet West: A view from the HELIOS zodiacal light photometers [PDF]
, 1987 Comet West passed through perihelion on February 25, 1976. The comet crossed the HELIOS A and B spacecraft zodiacal light photometer fields of view as the spacecraft orbited the Sun, allowing them to record the brightness, polarization, and color of the ...
Benensohn, R. M., Jackson, B. V.
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Dust Activity Evolution and Constraints on Icy Grains in the Interstellar Comet 3I/ATLAS
The Astrophysical Journal LettersWe present Zwicky Transient Facility observations of the interstellar comet 3I/ATLAS to characterize its dust-activity evolution before and after perihelion.
Bin Liu +3 more
doaj +1 more source
Evidence for Fragmentation of Strongly Nonspherical Dust Particles in the Tail of Comet West 1976 VI [PDF]
Symposium - International Astronomical Union, 1980 Following Sekanina's (1976a,b) suggestion that striae (also known as “synchronic” or pseudosynchronic bands) observed in the dust tails of several comets could be products of fragmentation of friable dust particles ejected from the nucleus, we have completed an investigation of these structures in Comet West 1976 VI (Sekanina and Farrell 1979, detailed
Z. Sekanina, J. A. Farrell
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Dielectric Elastomer Actuators as Safe and Effective Tools for Mechanostimulation of Human Cells
Advanced 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
Anticipated results from dust experiments on cometary missions [PDF]
, 1981 The major scientific objectives of a mission are: to determine the chemical nature and physical structure of comet nuclei, and to characterize the changes that occur as a function of time orbital position; to characterize the chemical and physical nature
Grun, E., Kissel, J., Fechtig, H.
core
Optical observations and dust modelling of comet 156P/Russell-LINEAR
, 2022 Comet 156P/Russell-LINEAR is a short period Jupiter family comet with an orbital period of 6.44 years. The results from spectroscopic, photometric, polarimetric observations and dust modelling studies are presented here.
Chambó, José J. +7 more
core +1 more source
The Astrophysical Journal LettersWe present independent polarimetric observations of the interstellar object 3I/ATLAS, including the first near-infrared polarimetric measurements. Using imaging polarimeters, we measured the degree of linear polarization from the visible R _C band (0.64
Seungwon Choi +19 more
doaj +1 more source