Results 31 to 40 of about 546 (232)

The Growth and Decay of Individual Sunspots and Pores

open access: yesThe Astrophysical Journal
An analysis of the photometric growth and decay rates of sunspots and pores was carried out. According to the Solar Dynamics Observatory/Helioseismic and Magnetic Imager data for the period 2010 May–2025 March, ≈3.5 × 10 ^5 sunspots and pores were ...
Andrei G. Tlatov
doaj   +1 more source

Flare forecasting using the evolution of McIntosh sunspot classifications

open access: yesJournal of Space Weather and Space Climate, 2018
Most solar flares originate in sunspot groups, where magnetic field changes lead to energy build-up and release. However, few flare-forecasting methods use information of sunspot-group evolution, instead focusing on static point-in-time observations ...
McCloskey Aoife E.   +2 more
doaj   +1 more source

Sequences of Large Sunspot Groups [PDF]

open access: yesSymposium - International Astronomical Union, 1976
The concept of a sequence of large sunspot groups is defined. From distribution functions of large groups from the period of sequences and that outside sequences it has been found that there are relatively more groups with a smaller maximum area in the period of sequences than in the period outside sequences.
openaire   +1 more source

Reconstruction of the Sunspot Group Number: The Backbone Method [PDF]

open access: yesSolar Physics, 2016
We have reconstructed the sunspot group count, not by comparisons with other reconstructions and correcting those where they were deemed to be deficient, but by a re-assessment of original sources. The resulting series is a pure solar index and does not rely on input from other proxies, e.g.
Svalgaard, Leif, Schatten, Kennuth H.
openaire   +2 more sources

A Rare Form of Microcephalic Primordial Dwarfism due to NSMCE2 Deficiency (Seckel Syndrome Type 10): A Report of Macular Involvement

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Biallelic variants in NSMCE2 (MMS21), which encodes the SUMO E3 ligase subunit of the SMC5/6 chromatin‐maintenance complex, have recently been implicated in microcephalic primordial dwarfism (MPD), corresponding to Seckel syndrome type 10 (OMIM #617246).
Cristina Peduto   +5 more
wiley   +1 more source

An Automatic Approach for Grouping Sunspots and Calculating Relative Sunspot Number on SDO/HMI Continuum Images

open access: yesThe Astronomical Journal
The relative sunspot number is one of the major parameters for the study of long-term solar activity. The automatic calculation of the relative sunspot number is more stable and accurate as compared to manual methods.
Cui Zhao   +6 more
doaj   +1 more source

Artificial Intelligence in Ophthalmology: From Methodological Advances to Clinical Translation and Future Directions

open access: yesEye &ENT Research, EarlyView.
ABSTRACT Artificial intelligence (AI) is reshaping ophthalmology from task‐specific image analysis toward multimodal, longitudinal, and clinically integrated decision support. This narrative review summarizes the methodological evolution of ophthalmic AI, including traditional machine learning, task‐specific deep learning, self‐supervised learning ...
Yuxin Liu, Hanruo Liu
wiley   +1 more source

Genetic epilepsies with myoclonic seizures: Mechanisms and syndromes

open access: yesEpilepsia Open, EarlyView.
Abstract Genetic epilepsy with myoclonic seizures encompasses a heterogeneous spectrum of conditions, ranging from benign and self‐limiting forms to severe, progressive disorders. While their causes are diverse, a significant proportion stems from genetic abnormalities.
Antonietta Coppola   +3 more
wiley   +1 more source

Temporal and Structural Properties of Sunspot Small Short-living Group and Large Long-living Group Populations

open access: yesThe Astrophysical Journal
We investigate the properties of two types of solar active regions: the small short-living groups (SSGs) and the large long-living groups (LLGs). The combined distribution of areas of active regions is bimodal. When deconvolved, the distributions of each
Yury A. Nagovitsyn   +2 more
doaj   +1 more source

Effects of LED Light Exposure on Lutein and Bioactive Compounds in Nasturtium Flowers (Tropaeolum majus L.)

open access: yesFuture Postharvest and Food, EarlyView.
Red LED supplementation during cultivation modulated the accumulation of bioactive compounds in Tropaeolum majus flowers. Moderate exposure (3–5 h) enhanced antioxidant capacity and increased carotenoids, phenolics, and anthocyanins depending on petal color, highlighting a simple strategy to improve the functional value of edible flowers. ABSTRACT This
Amanda Lais Alves Almeida Nascimento   +8 more
wiley   +1 more source

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