Results 91 to 100 of about 8,610,015 (269)
The revised Brussels-Locarno Sunspot Number (1981-2015) [PDF]
, 2015 In 1981, the production of the international Sunspot Number moved from the Z\"{u}rich Observatory to the Royal Observatory of Belgium, marking a very important transition in the history of the Sunspot Number.
Cortesi, Sergio +4 more
core +1 more source
The impacts of high refractive errors on self‐reported visual function and visual concern
Acta Ophthalmologica, EarlyView.Abstract Purpose To examine the association between refractive errors and self‐reported visual function and visual concern, considering self‐perceived present eyesight, concerns about vision, accomplishing less and limitations in daily activities in an eye‐healthy cohort.
Jens Riis Møller +9 more
wiley +1 more source
Time series modelling of sunspot numbers using long range cyclical dependence [PDF]
This paper deals with the analysis of the monthly structure of sunspot numbers using a new technique based on cyclical long range dependence. The results show that sunspot numbers have a periodicity of 130 months, but more importantly, that the series is
Luis A. Gil-Alana
core
Acta Ophthalmologica, EarlyView.Abstract Purpose To compare the anatomic, functional and safety outcomes of intra‐operative 360‐degree prophylactic laser retinopexy versus focal laser retinopexy during pars plana vitrectomy (PPV) for rhegmatogenous retinal detachment (RRD) and to assess the certainty of evidence.
Luke Yaldo +5 more
wiley +1 more source
The Astrophysical Journal Supplement SeriesWe present a systematically revised and manually verified digital catalog of historical sunspot drawing observations from Chinese observatories, encompassing sunspot number, sunspot group number (GN), and sunspot area measurements.
G. H. Lin, S. Liu
doaj +1 more source
Acta Ophthalmologica, EarlyView.Abstract Purpose We aimed to evaluate the association of metabolic syndrome (MetS) with macular thickness and retinal vascular calibres in the population‐based cohort (Northern Finland Birth Cohort). Methods The population of 2242 individuals was divided into MetS (n = 344) and control groups (n = 1898).
Jenni M. Huru +4 more
wiley +1 more source
Impacts of sunspot number and Geomagnetic aa-index on climate of Wet Zone West Africa during solar cycles 22-24. [PDF]
Sci Rep, 2021 Hanson EA, Okeke FN.
europepmc +1 more source
A Stochastic Model for Wolf’s Sunspot Number
, 2011 We present a simplified cycle model, using the available data, for the monthly sunspot number random variables {X-t}(t=1)(133), where 133 is taken as the mean duration of the Schwabe's cycle.
Rui Gonçalves +2 more
core +1 more source
Tests of sunspot number sequences: 1. Using ionosonde data [PDF]
, 2016 More than 70 years ago it was recognised that ionospheric F2-layer critical frequencies [foF2] had a strong relationship to sunspot number. Using historic datasets from the Slough and Washington ionosondes, we evaluate the best statistical fits of foF2 ...
L. Barnard +14 more
core +2 more sources
Interpreting the structure–function relationship in high myopia‐associated glaucoma: A review
Acta Ophthalmologica, EarlyView.Abstract Visual field (VF) interpretation in high myopia‐associated glaucoma (HMG) is challenging due to frequent structure–function discordance and coexisting myopia‐related changes. These changes may reduce the reliability of conventional structure–function mapping and increase the risk of misclassifying non‐glaucomatous VF abnormalities as ...
Ruby S. Chan +6 more
wiley +1 more source