Results 51 to 60 of about 320,975 (184)
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
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
openaire +1 more source
Industrial Hydrocarbons Exposure Deteriorates Sperm Integrity and Reproductive Function
Journal of Biochemical and Molecular Toxicology, Volume 40, Issue 8, August 2026.ABSTRACT Occupational exposure to polycyclic aromatic hydrocarbons (PAHs) or metal fumes in the workplace may be detrimental to male fertility. The present study compared sperm concentration, total motility, strict morphology and oxidative stress and SDF levels between 81 men, controls (n = 17) and workers from plastic industry workers (n = 18), steel ...
Madhan Kumar Pichandi +2 more
wiley +1 more source
Aging Cell, Volume 25, Issue 8, August 2026.Schematic diagram of the mechanism by which PM@RSV NPs alleviate AS via FOXM1 activation. ABSTRACT Atherosclerosis (AS) is closely linked to endothelial cell (EC) senescence and mitochondrial dysfunction, which impair vascular repair. Resveratrol (RSV) has antioxidant, anti‐inflammatory, and pro‐angiogenic effects, but its clinical use is restricted by
Li Xiao, Zexin Zhan, Ping Liu, Bing Qin
wiley +1 more source
EFSA Journal, Volume 24, Issue 8, August 2026.Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of lasalocid A sodium (Avatec® 150G) as a coccidiostat for turkeys, pheasants, guinea fowl, quails and partridges. The additive currently on the market complies with the existing conditions of authorisation.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) +26 more
wiley +1 more source
The Rhythmic and the Metronomic: On Charlie Chaplin's Gait
Critical Quarterly, EarlyView.
Matthew Beaumont
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract Deimos, the smaller and outer Martian moon, is a dark, irregularly shaped body whose origin and evolution are still poorly constrained. Its surface is smoother and less cratered than the other moon, Phobos, a difference still unexplained due to limited data coverage and resolution.
Y. Shimizu +10 more
wiley +1 more source
Dayside-to-nightside dust coma brightness asymmetry and its implications for nightside activity at Comet 67P/Churyumov–Gerasimenko [PDF]
, 2020 We have determined the dust coma brightness ratio between the dayside and the nightside (DS:NS) in OSIRISimages of comet 67P/Churyumov–Gerasimenko and compared them to results from numerical dust comasimulations to learn more about the dynamic processes ...
Wu, J.-S. +4 more
core +3 more sources
The striated dust tail of Comet West 1976 VI as a particle fragmentation phenomenon
The Astronomical Journal, 1980 The motions of 16 striae in the dust tail of Comet West are studied. It is found that all 16 striae have originated from particle ejections, and that the particles responsible for the formation of a discrete striae must be emitted simultaneously, be subjected to the same repulsive acceleration in the tail, and break up simultaneously.
Z. Sekanina, J. A. Farrell
openaire +1 more source
Journal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.Abstract Io's tenuous atmosphere consists primarily of sulfur dioxide (SO2 ${\text{SO}}_{2}$) with observed column densities of approximately 1016−1017 $1{0}^{16}-1{0}^{17}$ cm−2 ${\text{cm}}^{-2}$. However, it remains uncertain whether the sublimation of SO2 ${\text{SO}}_{2}$ surface frost or volcanic outgassing is the primary source of the SO2 ...
Leander Schlarmann +4 more
wiley +1 more source