Results 41 to 50 of about 1,202,402 (151)

Statistical study of auroral variability under different solar wind conditions based on classification using deep learning techniques

Earth and Planetary Physics
In this investigation, we meticulously annotated a corpus of 21,174 auroral images captured by the THEMIS All-Sky Imager across diverse temporal instances. These images were categorized using an array of descriptors such as 'arc', 'ab' (aurora but bright)
ZhiYuan Shang, ZhongHua Yao, Jian Liu, LinLi Xu, Yan Xu, BinZheng Zhang, RuiLong Guo, Yuan Yu, Yong Wei   +8 more
doaj   +1 more source

False kings and imagined protestants: why schismogenesis does not explain variation in inequality among Indigenous societies of the Pacific Coast Faux rois et protestants imaginaires: pourquoi la schismogenèse n'explique pas les variations des inégalités parmi les sociétés autochtones de la côte pacifique nord‐américaine

Journal of the Royal Anthropological Institute, EarlyView.
Indigenous societies along the temperate Pacific coast of North America embody diverse cultural institutions. This variation is conventionally classified into two distinct cultural areas: the Northwest Coast (NWC) and California (CAL). Discussion of the environmental, material, social, and ideological variation in these societies has a long and ...
Eric Alden Smith, Brian F. Codding
wiley   +1 more source

Palestine, Public Sentiment and the Limits of Omani Foreign Policy Discourse

Global Policy, EarlyView.
ABSTRACT This article examines how expressions of solidarity with Palestine in Oman reveal transformations in state–society relations during the Gaza war of 2023–2025, a period of leadership transition and regional rupture. Drawing on elite statements, opinion columns and semi‐structured interviews, it combines framing analysis with thematic analysis ...
Sumaiya Al‐Wahaibi
wiley   +1 more source

Influence of elevation, climate, snowmelt and floral abundance on body size of solitary bees

Ecological Entomology, EarlyView.
We measured body size in bee species from a 10‐year specimen collection from Colorado sub‐alpine meadows (2450–3450 m) and tested effects of elevation and annual snowmelt, climate and floral abundance. 2 out of 4 bee species collected across a broad elevation range showed a decline in body size with higher elevations; the other two showed no effect ...
Lachlan C. Jones, Melanie R. Kazenel, Kristin Conrad, Jane E. Ogilvie, Ian K. Breckheimer, Rebecca E. Irwin   +5 more
wiley   +1 more source

Artifex Ars Cartographica: Collaboration Between Portuguese Painters and Cartographers in the Fifteenth and Sixteenth Centuries

Renaissance Studies, EarlyView.
ABSTRACT During the fifteenth and sixteenth centuries, there was no statutory difference between cartography, drawing and painting. These activities were performed then by craftsmen who were part of a vast group under the umbrella of ‘mechanical arts’ and fell under the ‘artifex’ category. Artifex were experts in any particular art, whether a craftsman,
Vasco Medeiros
wiley   +1 more source

Nathaniel Culverwell's stoic theory of common notions

The Southern Journal of Philosophy, EarlyView.
Abstract This article takes a closer look at the theory of knowledge developed by Nathaniel Culverwell in his 1652 Elegant and Learned Discourse of the Light of Nature. Based on Culverwell's endorsement of Edward Herbert of Cherbury against Plato and Aristotle, his critical reception of René Descartes, and his contributions to a controversy between ...
Mogens Lærke
wiley   +1 more source

Imaging the May 2024 Extreme Aurora With Ionospheric Total Electron Content

Geophysical Research Letters
The continental United States is well instrumented with facilities for mid‐latitude upper atmosphere research that operate on a continuous basis. In addition, citizen scientists provide a wealth of information when unusual events occur.
J. C. Foster, P. J. Erickson, Y. Nishimura, S. R. Zhang, D. C. Bush, A. J. Coster, P. E. Meade, E. Franco‐Diaz   +7 more
doaj   +1 more source

Persistence and Dynamics of an Sq‐like Mid‐Latitude Current Vortex During the May 2024 Superstorm

Geophysical Research Letters, Volume 53, Issue 21, 16 November 2026.
Abstract The solar quiet (Sq) current system describes the mid‐latitude equivalent current under quiet geomagnetic conditions, but whether an Sq‐like vortex persists during intense storms remains unclear. Using dense East Asian magnetometer observations, including the Chinese Meridian Project, we reconstruct the storm‐time ionospheric equivalent ...
Fengjue Wang, Chao Xiong, Yunliang Zhou, Yixun Zhu, Yuyang Huang, Baohua Sun, Bohao Qian, Simin Wang, LinLin Li, Shuji Abe, Akimasa Yoshikawa   +10 more
wiley   +1 more source

Model‐Data Comparison of Electron Energization Associated With Kinetic Alfvén Waves in the Near Earth Magnetotail

Geophysical Research Letters, Volume 53, Issue 21, 16 November 2026.
Abstract A model‐data comparison between Gyrofluid‐Kinetic Electron simulations and MMS satellite observations of kinetic Alfvén waves (KAW) and associated electron energization in the near Earth magnetotail is presented. The observations reveal 10 keV electron beams embedded within intense KAW field‐aligned currents.
A. J. Hull, P. A. Damiano, J. R. Johnson, C. C. Chaston   +3 more
wiley   +1 more source

Some Aspects of Victory Day 2024 Geomagnetic Storm Occurred on May 10–12, 2024, Using Satellite and Ground-Based Data

Russian Journal of Earth Sciences
The presented work examines the extreme geomagnetic storm that occurred during May 10–12, 2024, following solar flares on May 8–9, 2024, hence named the Victory Day Storm.
Chernyshov Alexander, Klimenko Maxim, Sinevich Aleksandr, Timchenko Aleksandr, Nosikov Igor, Chugunin Dmitry, Yankovsky Ilia   +6 more
doaj   +1 more source