Results 101 to 110 of about 8,624 (295)

Extraction of Sunspots from Chinese Sunspot Drawings Based on Semisupervised Learning

The Astrophysical Journal
China has six observing stations, providing over 52,000 handwritten sunspot drawings from 1947–2016. The observing stations are the Purple Mountain Astronomical Observatory (PMO), Yunnan Astronomical Observatory (YNAO), Qingdao Observatory Station (QDOS),
Qianqian Dong, Yunfei Yang, Song Feng, Wei Dai, Bo Liang, Jianping Xiong   +5 more
doaj   +1 more source

Junctional sensitivity and atrophy progression rate of geographic atrophy secondary to age‐related macular degeneration

Acta Ophthalmologica, EarlyView.
Abstract Purpose To determine the relationship between the baseline junctional retinal sensitivity measured with microperimetry and the atrophy progression rate in eyes with geographic atrophy (GA) secondary to age‐related macular degeneration. Methods In this prospective cohort study, patients with GA were examined with fundus autofluorescence (FAF ...
Alexander Kai Thomsen, Jenni Martinez Villarruel Hinnerskov, Miranda Maung, Aubin Mutschler, SriniVas Sadda, Torben Lykke Sørensen   +5 more
wiley   +1 more source

The effect of rhegmatogenous retinal detachment on retinal oxygenation

Acta Ophthalmologica, EarlyView.
Abstract Purpose Little is known about the effects of retinal detachment on oxygen extraction from retinal vessels. The role of oxygen supply from the retinal vessels in a detached area has not previously been investigated in vivo in humans. Retinal oximetry is a non‐invasive measurement of retinal oxygen saturation.
Anne‐Sofie Petri, Sindri Traustason, Sveinn H. Hardarson, Alexander Kyhnel, Einar Stefansson, Jens F. Kiilgaard, Morten la Cour, Javad Nouri Hajari, Therese Krarup   +8 more
wiley   +1 more source

Speculative attacks : unique sunspot equilibrium and transparency

, 2005
Models with multiple equilibria are a popular way to explain currency attacks. Morris and Shin (1998) have shown that, in the context of those models, unique equilibria may prevail once noisy private information is introduced.
Illing, Gerhard, Heinemann, Frank
core  

Renal‐vascular axis: unmasking its role in vascular endothelial growth factor‐inhibitor vascular toxicity in cancer patients

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

KORELASI ANTARA BILANGAN SUNSPOT DENGAN BANYAKNYA KEJADIAN BADAI GEOMAGNET (THE CORRELATION OF SUNSPOT NUMBER AND GEOMAGNETIC STORM EVENTS)

, 2016
Penelitian untuk mengetahui keterkaitan antara bilangan sunspot dengan indeks Disturbance Storm Time (Dst) yang merupakan indeks gangguan geomagnet pada lintang rendah telah dilakukan. Tujuan dari penelitian ini adalah untuk mengetahui keterkaitan antara
Siska Filawati
core  

Sunspot velocity fields

, 2017
Research in sunspot velocity fields was initiated by Evershed in 1909. He observed that, in general, Fraunhofer lines crossing a sunspot appeared to be equally displaced in wavelength in opposite directions on either aide of the spot, and subsequent ...
Holmes, J.
core   +1 more source

Understanding Solar Activity after the Maunder Minimum: Sunspot Records by Rost and Alischer

The Astrophysical Journal
The Maunder Minimum was a period with significantly reduced solar activity between 1645 and 1715, approximately. The transition between the low solar activity in the Maunder Minimum and the subsequent “normal” regime of solar activity was gradual ...
V. M. S. Carrasco, A. J. P. Aparicio, T. Chatzistergos, S. Jamali Jaghdani, H. Hayakawa, M. C. Gallego, J. M. Vaquero   +6 more
doaj   +1 more source

Forecasting long-term sunspot numbers using the LSTM-WGAN model

Frontiers in Astronomy and Space Sciences
The sunspot number, an indicator of solar activity, is vital for forecasting variations in solar activity and predicting disturbances of the geomagnetic field.
Hao Yang, Hao Yang, Pingbing Zuo, Pingbing Zuo, Kun Zhang, Kun Zhang, Zhenning Shen, Zhengyang Zou, Xueshang Feng, Xueshang Feng   +9 more
doaj   +1 more source

Discovery of PHB1 as a Novel Candidate Gene in Dominant Optic Atrophy

Clinical Genetics, EarlyView.
A heterozygous PHB1 missense variant (p.Ser147Phe) segregates with autosomal dominant optic atrophy in a multi‐generation family. Structural and cellular analyses suggest altered mitochondrial dynamics, identifying PHB1 as a novel candidate gene for hereditary optic neuropathy. ABSTRACT Hereditary optic neuropathies comprise a genetically heterogeneous
Marija Volk, Aleš Maver, Martina Jarc Vidmar, Nuša Trošt, Tanja Višnjar, Ana Fakin, Lea Kovač, Maja Šuštar Habjan, Lucija Malinar, Sanja Petrović Pajić, Urška Dragin Jerman, Rok Romih, Marko Hawlina, Borut Peterlin   +13 more
wiley   +1 more source