Results 81 to 90 of about 21,069 (265)

Customizing AI‐based screening with real‐world data: Practical insights from diabetic retinopathy

Acta Ophthalmologica, EarlyView.
Abstract Purpose Diabetic retinopathy (DR) is a leading cause of vision loss in middle‐aged adults globally. Although artificial intelligence (AI)‐based screening tools like IDx‐DR (classification) and Thirona RetCAD (regression) have shown high sensitivity in controlled settings, real‐world screening faces challenges due to missing or low‐quality ...
Broder Poschkamp, Liane Kantz, Petra Augstein, Allam Tayar, Lars Kaderali, Martin Busch, Beathe Bohl, Sebastian Paul, Lisa Lüdtke, Marie‐Christine Bründer, Daniel Schulz, Hanna Grabow, Elke Gens Dipl, Antonia Müller, Emily Martin, Wolfgang Kerner, Jörg Reindel, Andreas Stahl   +17 more
wiley   +1 more source

The dynamical disconnection of sunspots from their magnetic roots

, 2005
After a dynamically active emergence phase, magnetic flux at the solar surface soon ceases to show strong signs of the subsurface dynamics of its parent magnetic structure. This indicates that some kind of disconnection of the emerged flux from its roots
Archontis, Basu, Baumann, Beck, Beckers, Caligari, Couvidat, D'Silva, D'Silva, Deinzer, Fan, Fan, Fan, Ferriz-Mas, Fisher, Hindman, Javaraiah, Kiefer, Kosovichev, M. Rempel, M. Schüssler, Magara, Meyer, Moreno-Insertis, Moreno-Insertis, Moreno-Insertis, Parker, Parker, Rempel, Schlüter, Schrijver, Schrijver, Schrijver, Schüssler, Schüssler, Spruit, Spruit, Strous, Tóth, van Ballegooijen, van Ballegooijen, Vishniac, Vögler, Wang, Zhao   +44 more
core   +1 more source

Observations key to understanding solar cycles: a review

Frontiers in Astronomy and Space Sciences
A paradigm shift is taking place in the conception of solar cycles. In the previous conception, the changing numbers of sunspots over intervals of 9–14 years have been regarded as the fundamental solar cycle although two average 11-year cycles were ...
Sara F. Martin
doaj   +1 more source

On connection of variations between hard cosmic ray flux, temperature and cardiovascular diseases in Vilnius and sunspot number during 2001–2012

Journal of Environmental Engineering and Landscape Management, 2015
The connection has been found between the course of cardiovascular diseases (CVD) and the hard cosmic ray flux (HCRF) near the ground surface in Vilnius. The course of air temperature and number of sunspot was simultaneously considered. The investigation
Dmitrijus Styro, Ana Usovaite
doaj   +1 more source

Fluid/function correlation using AI‐based quantification versus central subfield thickness in treatment‐naïve and pre‐treated patients with neovascular AMD in a real‐world setting

Acta Ophthalmologica, EarlyView.
Abstract Purpose To investigate the association between best‐corrected visual acuity (BCVA) and quantitative macular fluid volumes, compared to central subfield thickness (CST) in treatment‐naïve and previously treated patients with active neovascular age‐related macular degeneration (nAMD).
Anna Eidenberger, Gregor S. Reiter, Virginia Mares, Sophie Frank‐Publig, Philipp Fuchs, Magdalena Baratsits, Markus Gumpinger, Georg Faustmann, Alexandra Miere, Catherine Creuzot‐Garcher, Ulrike Scheschy, Laurent Kodjikian, Vincent Gualino, Benjamin Wolff, Stefan Sacu, Ursula Schmidt‐Erfurth   +15 more
wiley   +1 more source

On the extent of the moat flow in axisymmetric sunspots

, 2018
Unipolar, axisymmetric sunspots are figuratively called "theoretician's sunspots" because their simplicity supposedly makes them more suitable for theoretical descriptions or numerical models.
Balthasar H., Beauregard L., Denker C., Fanning D. W., Molowny‐Horas R., Schlichenmaier R.   +5 more
core   +1 more source

Characterising PRPF31‐associated retinal dystrophy: Clinical insights from baseline data in a natural history study

Acta Ophthalmologica, EarlyView.
Abstract Purpose To characterise the baseline clinical features and genotypes of adults with pre‐mRNA processing factor 31 (PRPF31)‐associated retinal dystrophy (RD) enrolled in a prospective, multicentre 4‐year natural history study, and to explore correlations between selected baseline parameters.
Kathrine Olaussen Eriksen, Jon Roger Eidet, Ulrika Kjellström, Jacopo Baldesi, Ragnheidur Bragadóttir, Leonardo Colombo, Josephine Prener Holtan   +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

The Extended Solar Cycle: Muddying the Waters of Solar/Stellar Dynamo Modeling or Providing Crucial Observational Constraints?

Frontiers in Astronomy and Space Sciences, 2018
In 1844 Schwabe discovered that the number of sunspots increased and decreased over a period of about 11 years, that variation became known as the sunspot cycle.
Abhishek K. Srivastava, Scott W. McIntosh, N. Arge, Dipankar Banerjee, Mausumi Dikpati, Bhola N. Dwivedi, Madhulika Guhathakurta, B.B. Karak, B.B. Karak, Robert J. Leamon, Robert J. Leamon, Shibu K. Matthew, Andres Munoz-Jaramillo, D. Nandy, Aimee Norton, L. Upton, S. Chatterjee, Rakesh Mazumder, Yamini K. Rao, Rahul Yadav   +19 more
doaj   +1 more source

Neovascular age‐related macular degeneration without drusen

Acta Ophthalmologica, EarlyView.
Abstract Purpose To describe the clinical characteristics and 1‐year follow‐up of patients with neovascular AMD (nAMD) without drusen in either eye. Methods This is a multicentre retrospective cohort study in three tertiary referral centres in The Netherlands. We included patients of 55 years or older with nAMD in one or both eyes, without the presence
Marc J. Sirks, Elon H. C. van Dijk, Husein Ghalayini, Somayeh Bazdar, WeiFeng Yu, Suzanne Yzer, José P. Martinez Ciriano, Reinier O. Schlingemann, Roselie M. H. Diederen, Camiel J. F. Boon   +9 more
wiley   +1 more source