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Forecasting Crude Oil Price and Stock Price by Jump Stochastic Time Effective Neural Network Model

Jun Wang, Huopo Pan, Fajiang Liu • Journal of Applied Mathematics (2012)

The interacting impact between the crude oil prices and the stock market indices in China is investigated in the present paper, and the corresponding statistical behaviors are also analyzed. The database is based on the crude oil prices of ...

DOAJ Open Access (DOAJ) DOI: 10.1155/2012/646475

XMM-Newton Observations of the High Temperature Plasma in the Large Magellanic Cloud Supernova Remnant N132D

Adam R. Foster, Paul P. Plucinsky, Terrance J. Gaetz, Xi Long et al. • The Astrophysical Journal (2025)

We present an analysis of the archival XMM-Newton observations of the Large Magellanic Cloud (LMC) supernova remnant N132D totaling more than 500 ks. We focus on the high temperature plasma ( kT _e  ∼ 4.5 keV) that is responsible for the hi...

DOAJ Open Access (DOAJ) DOI: 10.3847/1538-4357/adcd61

Analytical solutions for time-dependent kinematic three-dimensional magnetic reconnection.

Yalan Chen, Yi Wang, Fengsi Wei, Xueshang Feng et al. • PLoS ONE (2023)

Magnetic reconnection is a process that can rapidly convert magnetic field energy into plasma thermal energy and kinetic energy, and it is also an important energy conversion mechanism in space physics, astrophysics and plasma physics. Rese...

DOAJ Open Access (DOAJ) DOI: 10.1371/journal.pone.0286138

Is There a Retrograde Accretion Disk around 4U 1626–67? Tracking Torque Reversals with a State-space Model

Joseph O’Leary, Andrew Melatos, Tom Kimpson, Dimitris M. Christodoulou et al. • The Astrophysical Journal (2026)

X-ray timing studies of the persistent, Galactic, accretion-powered pulsar 4U 1626−67 reveal torque reversals, during which the pulse frequency ν ( t ) alternates between multiyear episodes of secular acceleration and deceleration, separate...

DOAJ Open Access (DOAJ) DOI: 10.3847/1538-4357/ae2610

Gravitationally induced unified relation among duality, coherence, steering, and maximal average fidelity

Duo-Duo Chen, Dong-Dong Dong, Xue-Ke Song, Liu Ye et al. • European Physical Journal C: Particles and Fields (2024)

Abstract Recently, numerous measures have been proposed for quantifying the quantumness of a given system, and the existence of intrinsic connections among quantum resource measures has been proven. Here, we study the unified relationship b...

DOAJ Open Access (DOAJ) DOI: 10.1140/epjc/s10052-024-12616-w

Active galactic nucleus activity in nearby disk galaxies: The roles of bar strength and spiral arm morphology

Martirosyan Zh. R., Hakobyan A. A., Adibekyan V., Barkhudaryan L. V. et al. • Astronomy & Astrophysics (2026)

Context. The transport of gas toward galactic centers and its connection to active galactic nucleus (AGN) activity remain key open questions in galaxy evolution. In particular, the relative roles of stellar bars and spiral arms and their po...

DOAJ Open Access (DOAJ) DOI: 10.1051/0004-6361/202661413