Results 1 to 10 of about 4,596 (163)

Electron Tomography and Simulation of Baculovirus Actin Comet Tails Support a Tethered Filament Model of Pathogen Propulsion [PDF]

open access: yesPLoS Biology, 2014
Several pathogens induce propulsive actin comet tails in cells they invade to disseminate their infection. They achieve this by recruiting factors for actin nucleation, the Arp2/3 complex, and polymerization regulators from the host cytoplasm.
Christophe Le Clainche   +2 more
exaly   +3 more sources

Genotoxicity assessment of Hwanglyeonhaedok-tang: an herbal formula evaluated using the in vivo alkaline comet assay and Pig-a gene mutation assay in rats [PDF]

open access: yesBMC Complementary Medicine and Therapies
Background Hwanglyeonhaedok-tang (HHT), also known as Huang-lian-jie-du-tang or Oren-gedoku-to, is a popular herbal formula in traditional Asian medicine.
Seng-Min Back   +10 more
doaj   +2 more sources

Actin cables and comet tails organize mitochondrial networks in mitosis [PDF]

open access: yesNature, 2021
Erika Holzbaur   +2 more
exaly   +2 more sources

The Wagging Plasma Tail of Comet C/2020 S3 (Erasmus)

open access: yesThe Astronomical Journal, 2023
Long-period comet C/2020 S3 (Erasmus) reached perihelion at 0.398 au on UT 2020 December 12.67, making it a bright, near-Sun object. Images taken between 2020 mid-November and December using the HI-1 camera and COR2 coronagraph on board STEREO-A, as well
Jing Li, Yoonyoung Kim, David Jewitt
doaj   +1 more source

Recurring Activity Discovered on Quasi-Hilda 2009 DQ118

open access: yesThe Astrophysical Journal Letters, 2023
We have discovered two epochs of activity on quasi-Hilda 2009 DQ _118 . Small bodies that display comet-like activity, such as active asteroids and active quasi-Hildas, are important for understanding the distribution of water and other volatiles ...
William J. Oldroyd   +12 more
doaj   +1 more source

Sodium Brightening of (3200) Phaethon near Perihelion

open access: yesThe Planetary Science Journal, 2023
Sunskirting asteroid (3200) Phaethon has been repeatedly observed in Solar Terrestrial Relations Observatory (STEREO) Heliospheric Imager 1 (HI1) imagery to anomalously brighten and produce an antisunward tail for a few days near each perihelion passage,
Qicheng Zhang   +4 more
doaj   +1 more source

Auroral responses to the visit of comet 73P/Schwassmann–Wachmann 3 in 2006

open access: yesGeoscience Letters, 2022
The stunning tails of comets are interesting astronomical phenomena to human beings and have been noticed for thousands of years. The bright tails also emit substantial materials into interplanetary space, including dusts and charged particles.
Yong Zhao   +6 more
doaj   +1 more source

Monte Carlo Models of Comet Dust Tails Observed from the Ground

open access: yesUniverse, 2022
Dust particles leaving the comet nucleus surface are entrained by the gas within the first few nuclear radius distances and are subjected to a complex hydrodynamical environment.
Fernando Moreno
doaj   +1 more source

Active Asteroid 311P/PanSTARRS: Rotational Instability as the Origin of its Multitails?

open access: yesThe Astronomical Journal, 2023
The active asteroid 311P/PanSTARRS is one of the two targets of the planned Chinese asteroid exploration mission Tianwen-2. During 2013, 311P experienced several mass-loss events and exhibited multiple comet-like tails. Here we analyze the morphology and
Bin Liu   +5 more
doaj   +1 more source

Palladin Compensates for the Arp2/3 Complex and Supports Actin Structures during Listeria Infections

open access: yesmBio, 2018
Palladin is an important component of motile actin-rich structures and nucleates branched actin filament arrays in vitro. Here we examine the role of palladin during Listeria monocytogenes infections in order to tease out novel functions of palladin.
Aaron S. Dhanda   +5 more
doaj   +1 more source

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