Results 21 to 30 of about 142,807 (311)

Flow Shears at the Poleward Boundary of Omega Bands Observed During Conjunctions of Swarm and THEMIS ASI

open access: yesGeophysical Research Letters, 2018
Omega bands are curved aurora forms that evolve from a quiet arc located along the poleward edge of a diffuse auroral band within the midnight to morningside auroral oval. They usually propagate eastward. Because omega bands are a significant contributor
Jiang Liu   +7 more
doaj   +1 more source

Conjunction Ground Triangulation of Auroras and Magnetospheric Processes Observed by the Van Allen Probe Satellite near 6 Re

open access: yesUniverse, 2023
Conjunction observations of auroras with electron distributions and broadband electrostatic fluctuations on Van Allen Probe A satellite in the equatorial region are considered.
Boris V. Kozelov, Elena E. Titova
doaj   +1 more source

On the frequency of auroras over Germany

open access: yesGeofísica Internacional, 2011
Se muestra una recopilación de 171 observaciones de auroras alemanas entre 1946 y 1964, las cuales no se habían publicado previamente. Los datos se analizaron en relación con el índice Kp, el número de manchas solares y las variaciones estacionales ...
Wilfried Schröder
doaj   +1 more source

A watercolor painting of northern lights seen above Japan on 11 February 1958

open access: yesJournal of Space Weather and Space Climate, 2019
A 61 years old watercolor painting of red aurora was recently provided from a Japanese citizen, and it contributed to understand the detailed time evolution around the peak time of the large magnetic storm on 11 February 1958.
Kataoka Ryuho, Kazama Shigeru
doaj   +1 more source

Aurora Image Classification with Deep Metric Learning

open access: yesSensors, 2022
In recent years, neural networks have been increasingly used for classifying aurora images. In particular, convolutional neural networks have been actively studied.
Takeru Endo, Mitsuharu Matsumoto
doaj   +1 more source

UVS Observations of Ganymede's Aurora During Juno Orbits 34 and 35

open access: yesGeophysical Research Letters, 2022
On 7 June 2021, Juno‐UVS mapped Ganymede's auroral emissions near a closest approach altitude of 1,046 km. The high spatial resolution map exhibits bright, 200–1,000 R, oxygen emissions organized into northern and southern auroral ovals.
T. K. Greathouse   +14 more
doaj   +1 more source

Agile collaboration: Citizen science as a transdisciplinary approach to heliophysics

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Citizen science connects scientists with the public to enable discovery, engaging broad audiences across the world. There are many attributes that make citizen science an asset to the field of heliophysics, including agile collaboration.
Vincent Ledvina   +33 more
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Survivin and Aurora Kinase A control cell fate decisions during mitosis

open access: yesMolecular Oncology, EarlyView.
Aurora A interacts with survivin during mitosis and regulates its centromeric role. Loss of Aurora A activity mislocalises survivin, the CPC and BubR1, leading to disruption of the spindle checkpoint and triggering premature mitotic exit, which we refer to as ‘mitotic slippage’.
Hana Abdelkabir   +2 more
wiley   +1 more source

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