Results 61 to 70 of about 1,145 (204)

Inclusion of Nonresonant Effects Into Quasi‐Linear Diffusion Rates for Electron Scattering by Electromagnetic Ion Cyclotron Waves

Geophysical Research Letters
Electromagnetic ion cyclotron (EMIC) waves are a key plasma mode affecting radiation belt dynamics. These waves are important for relativistic electron losses through scattering and precipitation into Earth's ionosphere.
Xiaofei Shi, Xin An, Anton Artemyev, Xiao‐Jia Zhang, Didier Mourenas, Vassilis Angelopoulos   +5 more
doaj   +1 more source

A Survey of EMIC Waves in Van Allen Probe Data

Journal of Geophysical Research: Space Physics
Abstract Using an automated novel approach we conduct a reproducible systematic survey of electromagnetic ion cyclotron wave activity detected by Van Allen Probe B during the time period 2013 January 1–2019 July 15. We identify approximately 500 hr of EMIC wave activity, an occurrence rate of ∼ 0.85%.
Andrew Inglis, Kyle Robert Murphy, Alexa J. Halford   +2 more
openaire   +1 more source

Staging the Semahs: Performing Aleviness in Turkey and Europe

Studies in Ethnicity and Nationalism, EarlyView.
ABSTRACT The semah, a genre of music and movement practices imbued with values of gender, class, age and ethical egalitarianism, lies at the core of the Alevis' ayn‐i cem rituals. Since the 1970s, processes of urbanisation, migration, folklore production and heritage‐making have facilitated the circulation of semah beyond ritual contexts, particularly ...
Sinibaldo De Rosa
wiley   +1 more source

High-frequency Alfven waves in multi-ion coronal plasma : observational implications [PDF]

, 2005
We investigate the effects of high-frequency (of order ion gyrofrequency) Alfvén and ion-cyclotron waves on ion emission lines by studying the dispersion of these waves in a multi-ion coronal plasma.
Ofman, L. (Leon), Davila, J. M. (Joseph M.), Viñas, A.-F., Nakariakov, V. M. (Valery M.)   +3 more
core   +1 more source

Magnetic Tilt Effect on Externally Driven Electromagnetic Ion Cyclotron (EMIC) Waves

Geophysical Research Letters, 2023
We examine coupling of fluctuations in the solar wind with electromagnetic ion cyclotron (EMIC) waves in the magnetosphere using an advanced full‐wave simulation code, Petra‐M. Dipole tilt dramatically affects the coupling process. While very little wave
Eun‐Hwa Kim, Jay R. Johnson
doaj   +1 more source

Instability and propagation of EMIC waves in the magnetosphere by a kappa distribution [PDF]

Journal of Geophysical Research: Space Physics, 2012
Electromagnetic ion cyclotron (EMIC) waves are excited near the magnetic equator by anisotropic ring current ions with energies near a few tens of keV. We investigate the instability and the path‐integrated gain of EMIC waves during wave propagation.
Qinghua Zhou, Fuliang Xiao, Jiankui Shi, Lijun Tang   +3 more
openaire   +1 more source

A Statistical Study of Warm Plasma Cloak Particles Using Van Allen Probe Data

Journal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract The Warm Plasma Cloak (WPC) consists of ions in the inner magnetosphere with energies between 10 eV and 1 keV and showing a bidirectional pitch angle distribution of particles. These particles play an important role in wave–particle interactions and in controlling the dayside reconnection rate at the magnetopause.
Bhairavi Apte, Hyomin Kim, Konstantin Gamayunov   +2 more
wiley   +1 more source

Evidence for a Mixture of Mirror Mode and Electromagnetic Ion Cyclotron Waves in the Martian Magnetosheath

The Astrophysical Journal
Electromagnetic ion cyclotron (EMIC) and mirror-mode (MM) waves are widely observed in terrestrial and other planetary magnetosheaths. Even though linear theory supports that EMIC and MM waves may grow at comparable rates under suitable plasma conditions,
Ziyong Liu, Yasong Ge, Bruce Tsurutani, Lican Shan, Zhongwei Yang, Can Huang, Aimin Du, Jinqiao Fan   +7 more
doaj   +1 more source

‘Being an Outsider’ and ‘Being an Insider’: A Focused Ethnography of Family Members' Visitation Experiences in an Adult ICU

Journal of Advanced Nursing, Volume 82, Issue 7, Page 7441-7452, July 2026.
ABSTRACT Aims To explore how the restricted visitation policy impacts family members' visitation experiences and perceptions in an adult intensive care unit (ICU). Design Focused ethnography. Methods Data collection included 39 observation sessions (totalling 65.3 h), 19 semi‐structured interviews with family members, and document analysis of policies ...
Lian Zhu, Susanne Kean, Catherine Clarissa, Jennifer Tocher   +3 more
wiley   +1 more source

Statistical analysis of EMIC waves in plasmaspheric plumes from Cluster observations

, 2016
Recently, electromagnetic ion cyclotron (EMIC) wave generation in plasmaspheric plumes has been the subject of extensive discussion. Theory predicts that regions of detached cold, dense plasma immersed in relatively low background magnetic field should ...
Mann, I.R., Darrouzet, F., Bortnik, J., Usanova, M.E.   +3 more
core   +1 more source