Results 31 to 40 of about 239 (145)

Acute Toxicity and Genotoxicity of cMoL, a Lectin From Moringa oleifera Seeds With Antifungal Activity Against Cryptococcus Strains

open access: yesJournal of Applied Toxicology, Volume 46, Issue 2, Page 682-696, February 2026.
ABSTRACT Coagulant Moringa oleifera lectin (cMoL) is one of the compounds involved in the application of M. oleifera seeds for traditional water treatment methods. The present study highlights the new biotechnological potential of cMoL lectin as an antifungal agent against Cryptococcus neoformans B3501 and H99 and Cryptococcus gattii R265 strains ...
Matheus Cavalcanti de Barros   +16 more
wiley   +1 more source

Impact‐Generated Mixing, Melting and Vaporization of the Early Earth's Crust

open access: yesEarth and Space Science, Volume 13, Issue 2, February 2026.
Abstract Earth's primary accretion was followed by a protracted flux of interplanetary collisions by leftover planetesimals. The effects of the largest collisions—with bodies possibly exceeding 1,000 km diameter—would have been devastating for terrestrial near‐surface environments.
S. Marchi   +3 more
wiley   +1 more source

A dynamical analysis of the dust tail of Comet C/1995 O1 (Hale–Bopp) at high heliocentric distances [PDF]

open access: yesIcarus, 2014
23 pages, 10 figures.
Kramer, Emily A.   +4 more
openaire   +3 more sources

Evidence of an Extended Alfvén Wing System at Enceladus: Cassini's Multi‐Instrument Observations

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 2, February 2026.
Abstract We report in situ evidence for Enceladus' Alfvén wing system and its coupling with Saturn's ionosphere, based on multi‐instrument observations from the Cassini spacecraft. Analysis of 36 events, including 13 from non‐flyby paths, confirms the existence of a Main Alfvén Wing (MAW) current system generated at Enceladus, and associated Reflected ...
L. Z. Hadid   +28 more
wiley   +1 more source

The striated dust tail of Comet West 1976 VI as a particle fragmentation phenomenon

open access: yesThe 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

Decameter‐Sized Earth Impactors—II: A Bayesian Inference Approach to Meteoroid Ablation Modeling

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract Small asteroids and large meteoroids frequently impact the Earth, though their physical and material properties remain poorly understood. When observed as fireballs in Earth's atmosphere, these properties can be inferred from their ablation and fragmentation behavior.
Ian Chow, Peter G. Brown
wiley   +1 more source

The dust environment of comet 67P/Churyumov–Gerasimenko: results from Monte Carlo dust tail modelling applied to a large ground-based observation data set [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
We present an extensive data set of ground-based observations and models of the dust environment of comet 67P/Churyumov–Gerasimenko covering a large portion of the orbital arc from about 4.5 au pre-perihelion through 3.0 au post-perihelion, acquired during the current orbit.
Moreno F.   +8 more
openaire   +3 more sources

Ozone Production by Electron Irradiation of Regolith Ice: Laboratory Study for the Icy Moons

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract We irradiate fine‐grained regolith pure water ice in ultra high vacuum with 5keV $5\,\text{keV}$ and 10keV $10\,\text{keV}$ electrons to study the radiolysis of water ice. The ice regolith is designed to closely mimic the physical characteristics of the surfaces of the icy moons of the Solar System.
Lorenzo Obersnel   +4 more
wiley   +1 more source

The Secretome of Human Trophoblast Stem Cells Attenuates Senescence‐Associated Traits

open access: yesAging Cell, Volume 25, Issue 2, February 2026.
Human trophoblast stem cell‐derived secretome/conditioned medium (hTSC‐CM) and the extracellular vesicles (EVs) therein suppress DNA damage and NF‐κB activation in senescent fibroblasts, in turn reducing the production of senescence‐associated secretory phenotype (SASP) factors. This study highlights hTSC‐CM and EVs as potential senotherapeutic agents.
Kotb Abdelmohsen   +18 more
wiley   +1 more source

Sampling the volcanic plumes at Io: Impact speeds and shock conditions

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 2, Page 241-271, February 2026.
Abstract The desire to sample material from the interior of Io, by flying through its volcanic plumes, requires consideration of the flyby speed and the types of sample collection techniques that can be utilized. Low speed collection (1–2.5 km s−1) would require an orbit around Io itself, which is unlikely due to the accumulated radiation dose that ...
M. J. Burchell   +2 more
wiley   +1 more source

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