Results 71 to 80 of about 11,976 (273)

Lifetime of Long-Lived Sunspot Groups

Universe
Studies of active region (AR) lifetimes are mostly restricted to short-lived ARs. The aim of this paper is to include recurrent ARs, which should be identified unambiguously.
Judit Muraközy
doaj   +1 more source

Exploring ocular fundus morphology in relation to growth in adolescents born moderate‐to‐late preterm

Acta Ophthalmologica, EarlyView.
Abstract Purpose To study ocular fundus morphology and its relation to growth in adolescents born moderate‐to‐late preterm (MLP) and full term. Methods This prospective and population‐based cohort study included 50 MLP adolescents (26 girls, mean age 16.5 years) and 50 full‐term controls (30 girls, mean age 16.7 years).
Alexandra Lind, Sara Ali, Titus Ovik, Zoran Popovic, Eva Aring, Jovanna Dahlgren, Marita Andersson Grönlund   +6 more
wiley   +1 more source

Harmonizing Sunspot Datasets Consistency: Focusing on SOHO/MDI and SDO/HMI Data

Universe
To ensure the long-term consistency of sunspot group data, it is essential to harmonize measurements from SOHO/MDI and SDO/HMI, two major solar observatories with overlapping coverage.
Barbara Góra-Gálik, Emese Forgács-Dajka, Istvan Ballai   +2 more
doaj   +1 more source

Coronal Mass Ejections from Sunspot and Non-Sunspot Regions [PDF]

, 2009
Coronal mass ejections (CMEs) originate from closed magnetic field regions on the Sun, which are active regions and quiescent filament regions. The energetic populations such as halo CMEs, CMEs associated with magnetic clouds, geoeffective CMEs, CMEs associated with solar energetic particles and interplanetary type II radio bursts, and shock-driving ...
Gopalswamy, N., Akiyama, S., Yashiro, S., Makela, P.   +3 more
openaire   +2 more sources

Internal closure of a posterior perforation using amniotic membrane: A novel surgical technique

Acta Ophthalmologica, EarlyView.
J. S. Suwandi, B. A. van der Wel, E. H. C. van Dijk, S. S. Manning, M. Manzulli, P. Geeraert, S. van Romunde, K. Faridpooya   +7 more
wiley   +1 more source

Pregnancy as a risk factor for central serous chorioretinopathy: A systematic review and meta‐analysis

Acta Ophthalmologica, EarlyView.
Abstract Purpose Pregnancy induces significant changes in the body, including increased peripheral and choroidal blood perfusion and an increased systemic corticosteroid level. Here, we systematically reviewed the evidence on pregnancy as a risk factor for developing central serous chorioretinopathy (CSC) and conducted a meta‐analysis to obtain a ...
Nathalie Skovgaard Eriksen, Zainab Fakhril‐din, Riccardo Fasana, Rodrigo Anguita, Elon H. C. van Dijk, Lorenzo Ferro Desideri, Jakob Grauslund, Michael Stormly Hansen, Oliver Niels Klefter, Armin Motaabbed, Line Petersen, Prithvi Ramtohul, Mehmet Cem Sabaner, Osman Savran, Miklos Schneider, Yousif Subhi   +15 more
wiley   +1 more source

Characterization of retinal pigment epithelium layer in healthy and diseased retinas with high‐resolution adaptive optics transscleral flood illumination imaging

Acta Ophthalmologica, EarlyView.
Abstract Purpose The retinal pigment epithelium (RPE) is critical in the pathophysiology of retinal diseases, such as age‐related macular degeneration. Adaptive optics transscleral flood illumination (AO‐TFI) offers rapid, detailed morphometric characterization of the RPE layer.
Leila Sara Eppenberger, Safa Mohanna, Sohrab Ferdowsi, Sonja Simon‐Zoula, Oliver Pfäffli, Christoph Amstutz, Lucas M. Bachmann, Michael A. Thiel, Martin K. Schmid   +8 more
wiley   +1 more source

HEMISPHERIC SUNSPOT UNIT AREA: COMPARISON WITH HEMISPHERIC SUNSPOT NUMBER AND SUNSPOT AREA

The Astronomical Journal, 2014
The monthly mean northern and southern hemispheric sunspot numbers (SNs) and sunspot areas (SAs) in the time interval of 1945 January to 2012 December are utilized to construct the monthly northern and southern hemispheric sunspot unit areas (SUAs), which are defined as the ratio of hemispheric SA to SN.
K. J. Li, N. B. Xiang, Z. N. Qu, J. L. Xie   +3 more
openaire   +1 more source

Axial length, myopia progression, and myopic maculopathy in Stickler syndrome

Acta Ophthalmologica, EarlyView.
Abstract Purpose We lack knowledge on the potentially progressive nature of and the prevalence of complications to myopia as a characteristic trait of Stickler syndrome. Methods This cross‐sectional study combines ophthalmic examination and medical record data on Danish patients with genetically confirmed Stickler syndrome type 1 (COL2A1) and type 2 ...
Kirstine B. Boysen, Mette Bertelsen, Nanna D. Rendtorff, Stense Farholt, Line Kessel   +4 more
wiley   +1 more source

Latitude Migration of Sunspot Groups [PDF]

, 2001
Kejun Li, H. S. Yun, Xiaojie Gu
openalex   +1 more source