Results 121 to 130 of about 30,236 (236)

A study of extended zodiacal structures [PDF]

Observations of cometary dust trails and zodiacal dust bands, discovered by the Infrared Astronomical Satellite (IRAS) were analyzed in a continuing effort to understand their nature and relationship to comets, asteroids, and processes effecting those ...
Sykes, Mark V.
core   +1 more source

Redox Regulation and Oxidative Stress in Health and Disease: Mechanisms and Therapeutic Targeting

MedComm – Future Medicine, Volume 5, Issue 2, June 2026.
Reactive species serve crucial roles which are tightly regulated in both physiological as well as disease states. At physiological levels, these species are integral to redox signaling, while uncontrolled redox promotes disease pathology. This review examines the dysregulation of these processes.
Mohammad Hossein Azadi, Azadeh Niknejad, Elaheh Amini   +2 more
wiley   +1 more source

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

Dust Production Rates in Jupiter-family Comets. II. Trends and Population Insights from ATLAS Photometry of 116 JFCs

The Planetary Science Journal
Jupiter-family comets (JFCs) have orbital periods of less than 20 yr and therefore undergo more frequent sublimation compared to other comet populations.
A. Fraser Gillan, Alan Fitzsimmons, Larry Denneau, Robert J. Siverd, Ken W. Smith, John L. Tonry, David R. Young   +6 more
doaj   +1 more source

Long-term orbital evolution of short-period comets found in Project Cosmo-DICE [PDF]

Orbital evolutions of about 160 short-period (SP) comets are numerically integrated for 4400 years in the framework of a realistic dynamical model. By the round-trip error in closure test, a reliable time space of the integrated orbits is estimated for ...
Nakamura, Tsuko, Yoshikawa, Makoto
core   +1 more source

Preliminary Results from NEOWISE: An Enhancement to the Wide-field Infrared Survey Explorer for Solar System Science [PDF]

, 2011
The Wide-field Infrared Survey Explorer (WISE) has surveyed the entire sky at four infrared wavelengths with greatly improved sensitivity and spatial resolution compared to its predecessors, the Infrared Astronomical Satellite and the Cosmic Background ...
Alles, R., Bauer, J., Beck, R., Brandenburg, H., Conrow, T., Cutri, R. M., Dailey, J., Evans, T., Fowler, J., Jarrett, T., Mainzer, A., Marsh, K., Masci, F., McCallon, H., Wheelock, S., Wittman, M., Wyatt, P.   +16 more
core  

Effects of Intermittent Fasting‐Mimicking Diet on Pancreatic Islet Plasticity: Immunohistochemical, Ultrastructural, and Metabolic Profiles

The FASEB Journal, Volume 40, Issue 9, 15 May 2026.
Three weeks of fasting‐mimicking diet in female C57BL/6J mice increased pancreatic BNR4+ cells, PDX1+BRN4+ cells and insulin+glucagon+ cells after fasting in fluorescent multiplexed immunohistochemistry. Mice showed impaired glucose tolerance after fasting but not after refeeding after 2 weeks.
Clemens M. Harer, Beate Boulgaropoulos, Barbara Ehall, Lea Bogensperger, Kaddour Bounab, Dominique Pernitsch, Joakim Franz, Laurin Herbsthofer, Petra Kotzbeck, Jelena Krstic, Andreas Prokesch, Barbara Prietl, Dagmar Kolb, Thomas R. Pieber   +13 more
wiley   +1 more source

Elevated TRIM25 Impairs Poly (ADP‐ribose) Metabolism via PARG Degradation and Mediates Compression‐Induced Intervertebral Disc Degeneration

Advanced Science, Volume 13, Issue 25, 4 May 2026.
TRIM25 acts as a multifunctional hub driving intervertebral disc degeneration under mechanical stress. Mechanical compression significantly upregulates TRIM25 expression, establishing it as a key E3 ubiquitin ligase platform. TRIM25 targets PARG and Ku80 via distinct molecular interfaces, triggering their ubiquitination and degradation.
Zhangrong Cheng, Haiyang Gao, Wenbo Wu, Pengzhi Shi, Xianglong Chen, Zimu Yu, Wang Wu, Kangcheng Zhao, Cao Yang, Yukun Zhang   +9 more
wiley   +1 more source

A Dormant Captured Oort Cloud Comet Awakens: (18916) 2000 OG44

The Astrophysical Journal Letters
We report the discovery of activity emanating from (18916) 2000 OG _44 (alternately designated 1977 SD), a minor planet previously reported to be both an extinct comet and an asteroid on a cometary orbit. We observed 2000 OG _44 with a thin tail oriented
Colin Orion Chandler, William J. Oldroyd, Chadwick A. Trujillo, Dmitrii E. Vavilov, William A. Burris   +4 more
doaj   +1 more source

Rotation of split cometary nuclei [PDF]

A simple model for the rotational motion of split cometary nuclei is studied. A large-amplitude precession is easily excited due to the change of the moments of inertia even if the perturbation is small at the splitting.
Watanabe, Jun-Ichi
core   +1 more source