Results 61 to 70 of about 1,956,285 (237)
Acta Ophthalmologica, EarlyView.Abstract Purpose Early diagnosis of macular telangiectasia type 2 (MacTel) remains challenging, and the contribution of genetic variation to its clinical heterogeneity is unclear. This study investigated associations between MacTel risk variants and clinical characteristics in a Slovenian cohort.
Ajda Kunčič +4 more
wiley +1 more source
Forecasting long-term sunspot numbers using the LSTM-WGAN model
Frontiers in Astronomy and Space SciencesThe sunspot number, an indicator of solar activity, is vital for forecasting variations in solar activity and predicting disturbances of the geomagnetic field.
Hao Yang +9 more
doaj +1 more source
On the periodic variations of geomagnetic activity indices Ap and ap [PDF]
Annales Geophysicae, 1998 Yearly averages of geomagnetic activity indices Ap for the years 1967–1984 are compared to the respective averages of ν2·Bs, where v is the solar wind velocity and Bs is the southward interplanetary magnetic field (IMF) component.
H. Schreiber, H. Schreiber
doaj +1 more source
Uniting the Sun’s Hale magnetic cycle and “extended solar cycle” paradigms
Frontiers in Astronomy and Space Sciences, 2022 Through meticulous daily observation of the Sun’s large-scale magnetic field the Wilcox Solar Observatory (WSO) has catalogued two magnetic (Hale) cycles of solar activity.
Scott W. McIntosh +4 more
doaj +1 more source
Legal restrictions, “sunspots,” and cycles
Journal of Economic Theory, 1989 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +3 more sources
Acta Ophthalmologica, EarlyView.Abstract Background Manual diabetic retinopathy (DR) grading may prefer certain regions and underestimate others. It is unclear if inexperienced graders' initial marking strategy reflects a specialist's marking pattern. Aims By the virtual ocular learning platform (VIOLA), we evaluated if initial DR‐lesion markings among inexperienced graders spatially
Simon Joel Ellerup Lowater +5 more
wiley +1 more source
FUNCTIONAL SUNSPOT EQUILIBRIA [PDF]
Consider a one step forward looking model where agents believe that the equilibrium values of the state variable are determined by a function whose domain is the current value of the state variable and whose range is the value for the subsequent period ...
Shurojit Chatterji, Subir Chattopadhyay
core +2 more sources
British Journal of Pharmacology, EarlyView.Abstract Vascular toxicity is a growing concern in cancer patients receiving vascular endothelial growth factor inhibitor (VEGFi) therapy, posing a significant threat to patient prognosis. While the primary mechanism of VEGFi‐induced vascular toxicity is linked to redox‐sensitive reactions that disrupt vascular tone, leading to hypertension and ...
Grace Whelan, Karla B. Neves
wiley +1 more source
The sunspot cycle revisited [PDF]
Journal of Physics: Conference Series, 2013 The set of sunspot numbers observed since the invention of the telescope is one of the most studied time series in astronomy and yet it is also one of the most complex. Fourteen frequencies are found in the yearly mean sunspot numbers from 1700 to 2011using the Lomb-Scargle periodogram and prewhitening.
openaire +1 more source
The Astrophysical JournalWe 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