Results 31 to 40 of about 2,512 (186)

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, Volume 600, Issue 5, Page 591-611, March 2026.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

On positively charged dust in the coma of comet 67P

Monthly Notices of the Royal Astronomical Society, 2022
ABSTRACT Moment analysis of ion spectrograms measured by the Ion Composition Analyser (ICA) in the coma of comet 67P typically produces an ion number density estimate markedly lower than the number density of free electrons as measured by the Mutual Impedance Probe and the dual Langmuir Probe. While there are good reasons to distrust the
E Vigren, A I Eriksson, S Bergman
openaire   +1 more source

Endogenous Repair in Vanishing White Matter

Annals of Neurology, Volume 99, Issue 3, Page 737-747, March 2026.
[Color figure can be viewed at www.annalsofneurology.org] Objective Vanishing white matter is a leukodystrophy with remarkable regional variation in disease severity. The cerebral and cerebellar white matter chronically degenerates, while stress‐induced episodes of rapid neurological deterioration coincide with the appearance of acute focal lesions in ...
Bonnie C. Plug, Jodie H.K. Man, Marjolein Breur, Erik Nutma, Menno D. Stellingwerff, Truus E.M. Abbink, Marianna Bugiani, Marjo S. van der Knaap   +7 more
wiley   +1 more source

A composite phase function for cometary dust comae

Planetary and Space Science
Comets are primitive planetesimals we can study to infer knowledge about the initial stages of formation of our Solar System. Dust is the largest mass component among cometary materials. Emitted dust particles are anysotropic scatterers of the incident solar light and their nature can be investigated with remote sensing studies. Among such studies, the
Ivano Bertini, Jean–Baptiste Vincent, Raphael Marschall, Fiorangela La Forgia, Alessandra Mura, Laura Inno, Stavro Ivanovski, Michael Küppers, Cecilia Tubiana, Vladimir Zakharov   +9 more
openaire   +1 more source

Cometary coma dust size distribution from in situ IR spectra [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
Dust is the most abundant component in cometary comae. Here, we investigate the dust size distribution in 67P/Churyumov-Gerasimenko (67P/CG) using data from the Rosetta spacecraft that was in close proximity to the comet from 2014 August to 2016 September. The Visual, Infrared and Thermal Imaging Spectrometer (VIRTIS-M), spectral range of 0.25–5
G. Rinaldi, V. Della Corte, M. Fulle, F. Capaccioni, A. Rotundi, S. L. Ivanovski, D. Bockelée-Morvan, G. Filacchione, E. D’Aversa, M. T. Capria, G. P. Tozzi, S. Erard, C. Leyrat, E. Palomba, A. Longobardo, M. Ciarniello, F. Taylor, S. Mottola, M. Salatti   +18 more
openaire   +2 more sources

Activity-induced Near-infrared Spectral Variability at 29P/Schwassmann–Wachmann 1, 2017–2022

The Planetary Science Journal
29P/Schwassmann–Wachmann 1 (SW1) is both the first-discovered active Centaur and the most outburst-prone comet known. The nature of SW1’s many outbursts, which regularly brighten the comet by 5 mag or more, and what processes power them has been of ...
Theodore Kareta, Charles A. Schambeau, Megan Firgard, Yanga R. Fernández   +3 more
doaj   +1 more source

Giant Frontal Sinus Mucocele With Headache and Vision Changes: Case Report

Clinical Case Reports, Volume 14, Issue 3, March 2026.
ABSTRACT Giant frontal sinus mucoceles, caused by ostial obstruction, can lead to severe complications such as headaches, vision impairment, and brain compression. Early diagnosis through imaging and prompt surgical intervention, such as craniotomy, is critical to remove mucopurulent debris and necrotic bone, preventing vision loss and intracranial ...
Sujan Ghimire, Ritika Bhatta, Yagya Raj Sharma, Vitasta Muskan, Alok Dahal   +4 more
wiley   +1 more source

Integrating Satellite Data Into Meso‐Scale Habitat Modeling for Non‐Perennial Rivers and Streams

Water Resources Research, Volume 62, Issue 3, March 2026.
Abstract Non‐perennial rivers and streams (NPRs) are widespread and projected to become more common, yet effective tools for their characterization and management remain limited. This study introduces a novel approach to assess aquatic habitat availability in NPRs, applied to a regulated reach of the Sangone River (Northern Italy).
G. Negro, B. Pinna, G. Manfreda, P. Lo Conte, E. Belcore, P. Maschio, C. Cavallo, M. N. Papa, P. Vezza   +8 more
wiley   +1 more source

Spatial Distribution and Color of Dust in Halley’s Inner Coma [PDF]

International Astronomical Union Colloquium, 1991
Abstract Composite images of the intensity of solar radiation scattered by dust in Halley’s coma are constructed by using the three-channel spectra obtained during the approach phase of the Vega 2 spacecraft. They cover a sector centered on the nucleus that has a radius of 40000 km and an angular extent of 50°.
J. Clairemidi, E. Brandon, P. Rousselot, G. Moreels   +3 more
openaire   +1 more source

Hubble Space Telescope Observations of the Interstellar Interloper 3I/ATLAS

The Astrophysical Journal Letters
We present high-angular-resolution observations of the third known interstellar interloper, 3I/ATLAS, from the Hubble Space Telescope. The object is clearly active at 3.8 au preperihelion, showing dust emitted from the hot, Sun-facing side of the nucleus
David Jewitt, Man-To Hui, Max Mutchler, Yoonyoung Kim, Jessica Agarwal   +4 more
doaj   +1 more source