Results 171 to 180 of about 145,815 (295)

Self-Irradiated Accretion Disks

The structure of an outer accretion disk self-irradiated by the radiation from an inner viscous accretion disk is examined. The radiating region of the inner disk is assumed to be disk-shaped.
FUKUE, Jun, フクエ, ジュン, 福江, 純   +2 more
core  

Chondrite parent bodies as escaped satellites of proto-planetary embryos. [PDF]

Sci Adv
Levison HF, Deienno R, Walsh KJ, Johnson BC, Connolly HC, Wakita S, Grimm RE.   +6 more
europepmc   +1 more source

Early Retinal UCHL1 Dysregulation Coupled With Synaptic Loss Reflects Alzheimer's Disease Severity

Advanced Science, EarlyView.
This study identifies synapse‐enriched deubiquitinase UCHL1 as an early Aβ‐responsive regulator of retinal synaptopathy in Alzheimer's disease. Retinal UCHL1 loss accompanies excitatory synapse degeneration, p75NTR activation, and neuroinflammation, and predicts Braak stage and cognitive decline. Aβ42 fibrils trigger synaptic and UCHL1 depletion before
Altan Rentsendorj, Jean‐Philippe Vit, Alexandre Hutton, Yosef Koronyo, Saba Shahin, Edward Robinson, Ernesto Barron, Anthony Rodriguez, Ousman Jallow, Julia Sheyn, Bhakta Prasad Gaire, Lalita Subedi, Miyah R. Davis, Barathan Gnanabharathi, Alexander V. Ljubimov, Stuart L. Graham, Vivek K. Gupta, Mehdi Mirzaei, Debra Hawes, Katlin Silm, Keith L. Black, Lon S. Schneider, Alfredo A. Sadun, Jesse G. Meyer, Dieu‐Trang Fuchs, Maya Koronyo‐Hamaoui   +25 more
wiley   +1 more source

Deciphering Eccentric Accretion Disks with GRMHD Simulations

Accretion disks around supermassive black holes play a crucial role in understanding high-energy astrophysical phenomena, particularly in active galactic nuclei (AGNs) and tidal disruption events (TDEs).
Duran, Joaquin
core   +1 more source

Magnetogravitationally regulated streamer accretion onto a class 0 protostellar system. [PDF]

Sci Adv
Huang B, Girart JM, Stephens IW, Megeath T, Le Gouellec VJM, Murillo NM, Cortés P, Fernández-López M, Li ZY, Looney LW, López-Vázquez JA, Pineda JE, Sánchez-Monge Á, Sanhueza P, Sadavoy S, Zhang Q, Hull CLH, Karnath N, Liang E, Myers PC.   +19 more
europepmc   +1 more source

In Situ Stress‐Dispersing Hydrogel Millispheres via Load Redistribution to Restore Nucleus Pulposus Metabolic Homeostasis

Advanced Science, EarlyView.
Local stress concentration disrupts metabolic homeostasis and induces inflammation in the nucleus pulposus (NP), thereby accelerating intervertebral disc degeneration (IDD). A biomimetic HA/ChS hydrogel millimeter sphere (ChS@HM) is developed to enable synergistic stress dispersion and sustained hydration lubrication.
Ang Li, Hui Yuan, Honglei Xiao, Xiaodong Liu, Wenguo Cui   +4 more
wiley   +1 more source

Phosphorus-nitrogen systematics of first-generation planetesimals constrain life-essential element delivery to Earth. [PDF]

Sci Adv
Pathak D, Dasgupta R, Iyer N.
europepmc   +1 more source

Chemically Gradient Ordered Nanodomains Enable Large Tensile Ductility in Gigapascal Lightweight Refractory High‐Entropy Alloys

Advanced Science, EarlyView.
A high‐strength lightweight refractory high‐entropy alloy achieves extraordinary ductility owing to the introduction of coherent chemically gradient ordered nanodomains (CGONs). The CGONs not only serve as effective barriers to dislocation motion (strengthening) but also significantly promote dislocation nucleation and multiplication (ductilizing) upon
Wei Zhang, Dingshun Yan, Yong Zhang, Zhiming Li   +3 more
wiley   +1 more source

Accretion disk radii changes in IP Peg during outburst

, 2007
The focus of this study is the change in accretion disk size in Dwarf Novae (DN), IP Peg. DN systems are a type of cataclysmic variable that experience periodic outbursts.
Hamper, Randall T.
core  

Refractory inclusions in Bennu samples indicative of outer Solar System accretion. [PDF]

Nat Commun
Kawasaki N, Matsumoto T, Arakawa S, Sakamoto N, Bajo KI, Russell SS, Barnes JJ, Nguyen AN, McCoy TJ, Haenecour P, Yurimoto H, Connolly HC, Lauretta DS.   +12 more
europepmc   +1 more source