Mount St.Helens is a stratovolcano of the Cascadia hair oil volcanic arc well known worldwide for its volcanic collapse and eruption in 1980, which caused considerable destruction and changed the geomorphology of the volcano and of a considerable portion of its surroundings.This paper presents a geomorphology and surface-geology map of both the wid

There are a huge number of harmonics in the railway power supply system.Accurately estimating the harmonic impedance of the system is the key to evaluating the harmonic emission level of the power supply system.A harmonic impedance estimation method is proposed in this paper, which takes the Gaussian mixture regression (GMR) as the main idea, and i

Neuromyelitis optic spectrum disorder (NMOSD) is a rare autoimmune disease characterized by recurrent hair oil episodes and severe debilitation.It primarily involves the central nervous system and is associated with the presence of aquaporin-4 antibodies.Effective management of NMOSD necessitates long-term therapeutic strategies that focus on allev

It is our great pleasure to present a Special issue of Condensed Matter Physics in honour of the renowned scientist and our former scientific advisor Professor A.D.J."Tony" Game Bags Haymet, who turned 60 this February.An internationally-known physical chemist and scientific manager with over 170 scientific publications and numerous op-ed pieces, T