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We investigate the stochastic resonance of the stock prices in a finance system with the Heston model. The extrinsic and intrinsic periodic information are introduced into the stochastic differential equations of the Heston model for stock price by focusing on the signal power amplification (SPA). We find that for both cases of extrinsic and intrinsic periodic information a phenomenon of reverse resonance emerges in the behaviors of SPA as a function of the system and external driving parameters. Moreover, in both cases, a phenomenon of double reverse resonance is observed in the behavior of SPA versus the amplitude of volatility fluctuations, by increasing the cross correlation between the noise sources in the Heston model.
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http://dx.doi.org/10.1103/PhysRevE.88.012811 | DOI Listing |
JACC Case Rep
September 2025
Pericardial Disease Program, MedStar Heart and Vascular Institute, Washington, District of Columbia, USA.
Background: Pericardial involvement is common in systemic lupus erythematosus (SLE) and can lead to recurrent episodes. B cell-targeted therapies are commonly used in the treatment of SLE pericarditis. The management of recurrent lupus pericarditis refractory to B cell-targeted therapy remains challenging.
View Article and Find Full Text PDFACS Appl Mater Interfaces
September 2025
Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China.
Improving electrostrain in lead-free piezoelectric materials is critical for practical use. This study examines KTN crystals and employs two primary strategies to enhance their electrostrain: (1) Cu doping creates a restoring force enabling reversible domain switching. (2) Polarizing Cu:KTN crystals and applying an electric field perpendicular to the polarization direction ensure that all domains contribute to the strain.
View Article and Find Full Text PDFPhytomedicine
August 2025
Cardiology Department, Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang, China. Electronic address:
Background: Atherosclerosis (AS) is a leading risk factor for cardiovascular diseases globally, characterised by the accumulation of lipids and cholesterol in arterial walls, causing vascular narrowing and sclerosis along with chronic inflammation; this leads to increased risk of heart disease and stroke, significantly impacting patients' health. Danxia Tiaoban Decoction (DXTB), a traditional Chinese medicine (TCM) formula, has demonstrated positive clinical effects in treating AS; however, its mechanisms of action remain unclear.
Objective: To explore the potential mechanisms of action of DXTB in treating AS through multi-omics integration and experimental validation.
J Chromatogr A
September 2025
IFP Energies nouvelles, Rond-point de l'échangeur de Solaize, BP 3, 69360 Solaize, France.
Plastics are widely used materials composed of polymers and various additives to achieve specific properties. Their composition is often highly complex, particularly in post-consumer plastic waste. As mechanical recycling faces increasing limitations, chemistry-driven strategies are attracting growing interest to improve plastic recovery.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
School of Physics, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece. Electronic address:
Keratins represent an important class of sulfur-rich structural proteins. In this study, the pressure response of α-keratin, extracted from sheep wool, was investigated using Raman spectroscopy up to 4 GPa. A non-polar liquid (a Fluorinert™ FC70/77 mixture) served as the Pressure Transmitting Medium (PTM) in a Diamond Anvil Cell (DAC).
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