Results 141 to 150 of about 238,671 (290)
iMeta, Volume 4, Issue 3, June 2025.Our study provides a comprehensive multi‐omics profile of aging, integrating proteomic, metabolomic, and metagenomic analyses across diverse tissues and plasma. We identified the synergistic amplification of the circulating complement system and tissue‐wide immunoglobulin accumulation as key molecular drivers of inflammaging.
Feng Zhang +17 more
wiley +1 more source
On the Extremely X-Ray Variable Active Galactic Nuclei in the XMM-LSS Field
The Astrophysical JournalWe present a systematic investigation of extremely X-ray variable active galactic nuclei (AGNs) in the ≈5.3 deg ^2 XMM-SERVS XMM-LSS region. Eight variable AGNs are identified with rest-frame 2 keV flux density variability amplitudes around 6–12.
Zijian Zhang +5 more
doaj +1 more source
Conference Summary: The Central Engine of Active Galactic Nuclei [PDF]
arXiv, 2007 The 2006 meeting in Xi'an on the Central Engine of Active Galactic Nuclei covered the enormous and continuously expanding area of AGN research, from theory to the most sophisticated observations and from gamma-ray energies to long radio wavelengths.
arxiv
JOR SPINE, Volume 8, Issue 2, June 2025.ABSTRACT Background Intervertebral disc (IVD) degeneration (IDD) is the main contributor to chronic low back pain (LBP), the leading cause of disability worldwide, with a significant impact on the quality of life and health of common people. The etiology of IDD is still unclear, but it has been largely demonstrated the crucial role of inflammation and ...
Laura Guarnaccia +20 more
wiley +1 more source
Numerical Simulations of Jets from Active Galactic Nuclei
Galaxies, 2019 Numerical simulations have been playing a crucial role in the understanding of jets from active galactic nuclei (AGN) since the advent of the first theoretical models for the inflation of giant double radio galaxies by continuous injection in the late ...
J. Martí
semanticscholar +1 more source
Active Galactic Nuclei and gamma rays [PDF]
arXiv, 2010 The supermassive black holes harboured in active galactic nuclei are at the origin of powerful jets which can emit copious amounts of gamma-rays. The exact interplay between the infalling matter, the black hole and the relativistic outflow is still poorly known, and this parallel session of the 12th Marcel Grossman meeting intended to offer the most up
arxiv
Update on the German and Australasian Optical Ground Station Networks
International Journal of Satellite Communications and Networking, Volume 43, Issue 3, Page 147-163, May/June 2025.ABSTRACT Networks of ground stations designed to transmit and receive at visible and infra‐red wavelengths through the atmosphere offer an opportunity to provide on‐demand, high‐bandwidth, secure communications with spacecraft in Earth orbit and beyond. This work describes the operation and activities of current free space optical communications (FSOC)
Nicholas J. Rattenbury +24 more
wiley +1 more source
Earth and Space Science, Volume 12, Issue 6, June 2025.Abstract We evaluate cloud simulations using satellite simulators against multiple observational data sets. These simulators have been run within the Geophysical Fluid Dynamics Laboratory's Atmosphere Model version 4.0 (AM4.0), as well as an alternative configuration where a fully two‐moment Morrison‐Gettelman cloud microphysical parameterization with ...
Huan Guo +10 more
wiley +1 more source