Results 71 to 80 of about 1,152,990 (233)

High-resolution Observations of a C9.3 White-light Flare and Its Impact on the Solar Photosphere

The Astrophysical Journal Letters
We present a detailed analysis of a C9.3 white-light flare using high-resolution observations from the New Vacuum Solar Telescope. The flare occurred near the eastern solar limb on 2023 September 11, within NOAA AR 13431, and produced beam electrons with
Zhe Xu, Xiaoli Yan, Zhentong Li, Liheng Yang, Zhike Xue, Jincheng Wang, Yian Zhou   +6 more
doaj   +1 more source

On the Optimal Prediction of Extreme Events in Heavy‐Tailed Time Series With Applications to Solar Flare Forecasting

Journal of Time Series Analysis, EarlyView.
ABSTRACT The prediction of extreme events in time series is a fundamental problem arising in many financial, scientific, engineering, and other applications. We begin by establishing a general Neyman–Pearson‐type characterization of optimal extreme event predictors in terms of density ratios.
Victor Verma, Stilian Stoev, Yang Chen
wiley   +1 more source

The White-light Emissions in Two X-class Flares Observed by ASO-S and CHASE

The Astrophysical Journal Letters
The white-light continuum emissions in solar flares (i.e., white-light flares) are usually observed on the solar disk but, in a few cases, off the limb.
Ying Li, Zhichen Jing, De-Chao Song, Qiao Li, Jun Tian, Xiaofeng Liu, Ya Wang, M. D. Ding, Andrea Francesco Battaglia, Li Feng, Hui Li, Weiqun Gan   +11 more
doaj   +1 more source

MULTI-WAVELENGTH OBSERVATIONS OF A LARGE SOLAR FLARE

Odessa Astronomical Publications, 2019
We present the results of the multi- wavelength study of the two-ribbon solar flare on July 19, 2000 in the active region NOAA 9087. The evo- lution and morphological properties of the flare pro- ductive active region have been analyzed.
S N. Chornogor, N. N. Kondrashova
doaj   +1 more source

Embracing the politics of transformation: Policy action as “battle‐settlement events”

Review of Policy Research, EarlyView.
Abstract Societal transformations for addressing climate change are intensely contested and at risk of resistance and backlash to ambitious policy action. But they are frequently modeled through heuristics such as S‐curves which abstract from such conflicts, assuming increasing returns to scale as a driver of transformations.
James Patterson, Matthew Paterson
wiley   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Observations of an Eruptive Solar Flare in the Extended EUV Solar Corona [PDF]

, 2017
We present observations of a powerful solar eruption, accompanied by an X8.2 solar flare, from NOAA Active Region 12673 on 2017 September 10 by the Solar Ultraviolet Imager (SUVI) on the GOES-16 spacecraft.
D. Seaton, J. Darnel
semanticscholar   +1 more source

Stable Nitrogen Isotope Analysis of Amino Acids by Orbitrap Mass Spectrometry: Application for Extraterrestrial Samples

Rapid Communications in Mass Spectrometry, Volume 39, Issue 23, 15 December 2025.
ABSTRACT Background Obtaining isotopic data on soluble organic compounds, such as amino acids, in extraterrestrial samples is crucial for understanding their origins, prebiotic chemistry, and potential contamination. Conventional GC‐IRMS requires grams of material to measure isotopic compositions, limiting the analysis of low‐concentration organics in ...
O. M. McIntosh, A. A. Baczynski, M. Matney, H. L. McLain, K. K. Farnsworth, J. P. Dworkin, D. P. Glavin, J. E. Elsila, H. Xie, K. H. Freeman   +9 more
wiley   +1 more source

Long‐Term Real‐World Effectiveness of Rupatadine in Chronic Urticaria: A Retrospective Observational Study

JEADV Clinical Practice, Volume 4, Issue 5, Page 1025-1032, December 2025.
This retrospective observational study analyzed a cohort of chronic urticaria (CU) patients to provide insight into the clinical practice of CU with second‐generation antihistamines (SgAHs) and to evaluate the long‐term real‐world effectiveness of rupatadine in CU. Patients with chronic spontaneous urticaria (CSU) and chronic inducible urticaria (CIndU)
A. M. Giménez‐Arnau, C. Romero, M. March, A. Tomas, I. Izquierdo, R. M. Pujol   +5 more
wiley   +1 more source

Solar Flare Prediction Model with Three Machine-learning Algorithms using Ultraviolet Brightening and Vector Magnetograms [PDF]

, 2016
We developed a flare prediction model using machine learning, which is optimized to predict the maximum class of flares occurring in the following 24 hr.
N. Nishizuka, Komei Sugiura, Y. Kubo, M. Den, S. Watari, M. Ishii   +5 more
semanticscholar   +1 more source