Results 91 to 100 of about 5,646,026 (251)

Radial outer retina reflectivity (RORR) sign in LAMP2‐associated retinopathy

Acta Ophthalmologica, EarlyView.
Abstract Purpose To describe the radial outer retina reflectivity (RORR) sign in patients carrying pathogenic variants in the X‐linked lysosome‐associated membrane protein‐2 (LAMP2) gene and to review the histologic characteristics of LAMP2 expression in the human retina.
Rachael C. Heath Jeffery, Bohdan Kousal, Ulrike Grünert, Christine A. Curcio, Svetlana Cherepanoff, Tina M. Lamey, Michel Michaelides, Chrysanthi Tsika, Isabelle Chow, Omar A. Mahroo, Seungmin Lee, Martin Meliska, Milos Kubanek, Jakub Sikora, Siying Lin, Raymond C. B. Wong, Petra Liskova, Fred K. Chen   +17 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  

Retinal dystrophies simulating geographic atrophy: A diagnostic challenge

Acta Ophthalmologica, EarlyView.
Abstract Geographic atrophy (GA) is the chronic loss of retinal pigment epithelium, photoreceptors and choriocapillaris, marking the dry late stage of age‐related macular degeneration (AMD). GA prevalence is expected to rise in the upcoming decades. Advanced GA leads to central scotomas, reducing visual acuity and quality of life, potentially resulting
Johanna M. Colijn, Frank G. Holz, Jeroen Pas, Carel Hoyng   +3 more
wiley   +1 more source

Relationship between the Tilt Angles of Sunspot Groups and the Properties of the Next Solar Cycle

The Astrophysical Journal
Based on the data from the Kodaikanal and Mount Wilson observatories, we investigate the relationships of the tilt angles of sunspot groups, including the mean tilt angle and the tilt-angle scatter, during the declining phase with the parameters of the ...
P. X. Gao, J. C. Xu
doaj   +1 more source

Macular telangiectasia type 2 genetic risk variants associated with clinical characteristics in the Slovenian cohort

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, Nataša Debeljak, Petra Hudler, Janez Smerkolj, Mojca Urbančič   +4 more
wiley   +1 more source

Stable sunspot equilibria in a cash-in-advance economy [PDF]

We analyze a monetary model with flexible labor supply, cash-inadvance constraints and seigniorage-financed government deficits. If the intertemporal elasticity of substitution of labor is greater than one, there are two steady states, one determinate ...
Ramon Marimon, George W. Evans, Seppo Honkapohja   +2 more
core  

Inter‐eye microvascular asymmetry across stages of diabetic retinopathy: An OCT angiography study

Acta Ophthalmologica, EarlyView.
Abstract Purpose To evaluate inter‐eye asymmetry in macular microvascular parameters across different stages of diabetic retinopathy (DR) using OCT angiography, and to explore the associations with clinical factors. Methods This cross sectional study included 442 eyes of 221 patients with diabetes mellitus type 2. Central subfield thickness (CST), area
Stela Vujosevic, Sema Tamer Kaderli, Gabriele Piccoli, Elena Tagliabue, Camilla Alovisi, Vanda Bucceri, Emanuele Torti, Elisa Marenzi, Dogukan Ozen, Livio Luzi, Paolo Nucci   +10 more
wiley   +1 more source

An Alternative Approach to the Existence of Sunspot Equilibria [PDF]

This paper offers an alternative approach to the existence of sunspot equilibria. The economy has a single perishable good and fiat money within an overlapping generations framework with two possible extraneous events.
Haim Abraham
core  

Characteristics of the Solar Differential Rotation and Activity During Solar Cycle No. 24

Universe
An analysis of the solar differential rotation (DR) during solar cycle No. 24 (SC24) (2009–2019), based on the Kanzelhöhe Observatory for Solar and Environmental Research (KSO) data set, is presented.
Ivana Poljančić Beljan, Luka Šibenik, Klaudija Lončarić, Tomislav Jurkić, Rajka Jurdana-Šepić, Werner Pötzi, Damir Hržina, Roman Brajša, Astrid M. Veronig, Arnold Hanslmeier   +9 more
doaj   +1 more source

Explainable deep learning self‐supervised vision transformer for fundus‐based myopia classification

Acta Ophthalmologica, EarlyView.
Abstract Purpose To develop and validate a self‐supervised vision transformer (ViT) for automated three‐class classification of Normal, High Myopia (HM), and Pathologic Myopia (PM) from colour fundus photographs, with anatomically faithful interpretability. Methods A DINOv2 self‐supervised ViT was fine‐tuned using a two‐stage transfer‐learning protocol
Eirini Maliagkani, Christos Tsoutsas, Nikolaos Papageorgiou, Ioannis D. Apostolopoulos, Nikolaos Papandrianos, Ilias Georgalas, Elpiniki Papageorgiou   +6 more
wiley   +1 more source