Results 31 to 40 of about 182 (148)

Cosmic Dust Flux During the Quaternary: The Record of Large Scoriaceous and Unmelted Micrometeorites From the Transantarctic Mountains Collection

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract We estimate the cosmic dust flux to Earth through the study of rare micrometeorites that preserve part of their precursor features during atmospheric entry heating, namely unmelted and scoriaceous subtypes. Combining high‐precision mass balance measurements, X‐ray computed microtomography and scanning electron microscopy, we studied mass, size
S. Ottaviani   +7 more
wiley   +1 more source

Dynamic Holographic Display With Multiplexed Dielectric Metasurfaces

open access: yesNanophotonics, Volume 15, Issue 12, 25 June 2026.
Based on multiplexed metasurfaces, we show hybrid multiplexing of polarization, wavelength, and orbital angular momentum can be applied for dynamic tuning. Our strategy presents a highly compact and efficient solution for high‐capacity, multi‐dimensional holography, with promising applications in advanced displays, data storage, optical encryption, and
Yu Liu   +8 more
wiley   +1 more source

SKYSURF-11: A New Zodiacal Light Model Optimized for Optical Wavelengths

open access: yesThe Astrophysical Journal
We present an improved zodiacal light model, optimized for optical wavelengths, using archival Hubble Space Telescope (HST) imaging from the SKYSURF program. The T. Kelsall et al.
Rosalia O’Brien   +17 more
doaj   +1 more source

Biophysical Drivers of Surface Chlorophyll‐a in the Loop Current and Frontal Eddies in the Gulf of Mexico

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract Loop Current Frontal Eddies (LCFEs) are eddies that generate through instabilities of the Loop Current (LC). LCFEs have long been considered oases for fish communities due to their elevated chlorophyll‐a (Chl‐a) concentrations, typically attributed to their cyclonic nature.
Pamela Lee   +3 more
wiley   +1 more source

Modeling Upper Ocean Ecosystem Dynamics in Response to Interannual Sea‐Ice Variability in the Western Antarctic Peninsula

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract In the Western Antarctic Peninsula (WAP), marine plankton dynamics are tightly linked to the interannual variability in environmental conditions, including phenological shifts in sea‐ice seasonality. To explore these linkages, we use a 1‐dimensional vertical ocean‐ice‐ecosystem model (KPP‐Eco‐Ice, or KEI) that simulates physical and ecosystem ...
Catherine R. Czajka   +6 more
wiley   +1 more source

NEOMIR: ESA’s Space‐Based Infrared Mission for NEO Detection and Early Warning

open access: yesAdvances in Astronomy, Volume 2026, Issue 1, 2026.
The Near‐Earth Object Mission in the Infrared (NEOMIR) is European Space Agency’s (ESA’s) space‐based mission dedicated to discovering near‐Earth objects (NEOs). Its primary goal is to detect and provide early warnings for NEOs approaching Earth approaching from the near‐Sun direction, which are nearly impossible to observe using ground‐based optical ...
L. Conversi   +12 more
wiley   +1 more source

Diverse Dust Populations in the Near-Sun Environment Characterized by PSP/ISʘIS

open access: yesThe Astrophysical Journal
The Integrated Science Investigation of the Sun energetic particle instrument suite on the Parker Solar Probe is dedicated to measuring energetic ions and electrons in the near-Sun environment.
M. M. Shen   +11 more
doaj   +1 more source

Design and Analysis of Untargeted Metabolomics Experiments

open access: yesCurrent Protocols, Volume 5, Issue 10, October 2025.
Abstract Untargeted metabolomics is a powerful approach for identifying small molecules from highly complex mixtures, such as biological tissues or environmental samples. This technology enables the relatively fast and inexpensive identification of metabolites in situations where many or most of the chemical species are unknown before the experiment ...
Zane G. Long, Rachel W. Martin
wiley   +1 more source

Novel Insights on the Dust Distribution in the Zodiacal Dust Cloud from PSP/WISPR Observations at Large Elongations

open access: yesThe Astrophysical Journal
The Wide-Field Imager for Solar Probe (WISPR) on the Parker Solar Probe (PSP) mission maps the brightness produced by the zodiacal dust cloud (ZDC) from an historically unprecedented viewpoint.
Guillermo Stenborg   +3 more
doaj   +1 more source

Vision at high latitudes: High sensitivity without specific boreal adaptations in photoreception in reindeer (Rangifer tarandus L.)

open access: yesFunctional Ecology, Volume 39, Issue 10, Page 2573-2587, October 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The light climate at high latitudes, in particular the extended twilight of winter and the reduced diel variation in light level in midsummer and midwinter, potentially constrains visual function and the synchronisation of temporal organisation in polar species. In this
Nicholas J. C. Tyler   +3 more
wiley   +1 more source

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