Results 51 to 60 of about 4,153,032 (280)

SVD-accelerated T-matrix Method for Simulation of Scattering by Electrically Large Sphere Clusters and ISAR Imaging of Asteroid-like Bodies

The Planetary Science Journal
China’s Tianwen-2 mission will carry a radar to detect the internal structure of the asteroid 469219 Kamoʻoalewa. The model of scattering from the asteroid is important for the mission.
Zhanyang Weng, Niutao Liu, Ya-Qiu Jin
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

Colors and Dynamics of a Near-Sun Orbital Asteroid Family: 2021 PH27 and 2025 GN1

The Astrophysical Journal Letters
We observed the dynamically similar near-Sun asteroids 2021 PH27 and 2025 GN1 for their optical colors. These objects have the lowest known semimajor axes of any asteroids.
Scott S. Sheppard, Henry H. Hsieh, Petr Pokorný, David J. Tholen, Audrey Thirouin, Carlos Contreras, Marcelo D. Mora, Mauricio Martinez, Ivonne Toro   +8 more
doaj   +1 more source

The Near-Earth Object Surveyor Mission

The Planetary Science Journal, 2023
The Near-Earth Object (NEO) Surveyor mission is a NASA Observatory designed to discover and characterize asteroids and comets. The mission’s primary objective is to find the majority of objects large enough to cause severe regional impact damage (>140 m ...
A. K. Mainzer, J. R. Masiero, Paul A. Abell, J. M. Bauer, William Bottke, Bonnie J. Buratti, Sean J. Carey, D. Cotto-Figueroa, R. M. Cutri, D. Dahlen, Peter R. M. Eisenhardt, Y. R. Fernandez, Roberto Furfaro, Tommy Grav, T. L. Hoffman, Michael S. Kelley, Yoonyoung Kim, J. Davy Kirkpatrick, Christopher R. Lawler, Eva Lilly, X. Liu, Federico Marocco, K. A. Marsh, Frank J. Masci, Craig W. McMurtry, Milad Pourrahmani, Lennon Reinhart, Michael E. Ressler, Akash Satpathy, C. A. Schambeau, S. Sonnett, Timothy B. Spahr, Jason A. Surace, Mar Vaquero, E. L. Wright, Gregory R. Zengilowski, NEO Surveyor Mission Team   +36 more
doaj   +1 more source

Observations of Near Earth Objects with Spitzer [PDF]

, 2016
We are carrying out an Exploration Science Warm Spitzer program entitled NEOSurvey in which we are observing 550 Near Earth Objects in 710 hours of Spitzer time. For each object we use a thermal model to derive diameter and albedo. For each object we also derive a (partial) lightcurve; total elapsed observing times range from 15 minutes to 3.2 hours ...
Trilling, David E., Mommert, Michael, Hora, Joseph L., Chesley, Steven R., Emery, Joshua P., Fazio, Giovanni G., Harris, Alan, Mueller, Michael, Smith, Howard A.   +8 more
openaire   +2 more sources

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

Keck and Gemini Characterization of Hayabusa2# Rendezvous Target 1998 KY26

The Astronomical Journal
Near-Earth object (NEO) 1998 KY _26 is a target of the Hayabusa2# spacecraft, which it will rendezvous with in 2031 July. The asteroid has been noted to rotate rapidly and has a large out-of-plane nongravitational acceleration.
Bryce T. Bolin, Christoffer Fremling, Matthew Belyakov, Jin Beniyama, Marco Delbo, Robert Jedicke, Ian Wong, Laura-May Abron, Keith S. Noll, Andrew W. Stephens   +9 more
doaj   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

(523599) 2003 RM: The Asteroid that Wanted to be a Comet

The Planetary Science Journal, 2023
We report a statistically significant detection of nongravitational acceleration on the subkilometer near-Earth asteroid (523599) 2003 RM. Due to its orbit, 2003 RM experiences favorable observing apparitions every 5 yr.
Davide Farnocchia, Darryl Z. Seligman, Mikael Granvik, Olivier Hainaut, Karen J. Meech, Marco Micheli, Robert Weryk, Steven R. Chesley, Eric J. Christensen, Detlef Koschny, Jan T. Kleyna, Daniela Lazzaro, Michael Mommert, Richard J. Wainscoat   +13 more
doaj   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

FEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg, Martine Hjeltnes, Josephine Krieger, Joshua E. Elias, Maria Stensland, Kristian Holm, Xiaojun Jiang, Chuki Khangsar, Tuula A. Nyman, Arthur Kaser, Johannes R. Hov, Tom H. Karlsen, Nicole C. Kaneider, Frode L. Jahnsen, Georg Schneditz   +14 more
wiley   +1 more source