Results 41 to 50 of about 546 (232)

Deep Learning for Automatic Recognition of Magnetic Type in Sunspot Groups

open access: yesAdvances in Astronomy, 2019
Sunspots are darker areas on the Sun’s photosphere and most of solar eruptions occur in complex sunspot groups. The Mount Wilson classification scheme describes the spatial distribution of magnetic polarities in sunspot groups, which plays an important ...
Yuanhui Fang, Yanmei Cui, Xianzhi Ao
doaj   +1 more source

Latitude Migration of Sunspot Groups

open access: yesThe Astronomical Journal, 2001
Characteristics of latitude migration of sunspot groups in the northern and southern hemispheres are investigated by using the Royal Greenwich Observatory data set from the years 1874 through 1999. Latitude migration of sunspot groups is found to be represented by a binomial formula, which quantitatively describes the law.
K. J. Li, H. S. Yun, X. M. Gu
openaire   +1 more source

Precision Mapping of Retinal Disease: Identification of Differential Progression Trajectories via Imaging Phenomics

open access: yesiMetaMed, EarlyView.
Applying single‐cell RNA‐seq techniques to large‐scale clinical phenotypic data enables the discovery of differential disease progression trajectories and the construction of data‐driven progression scores. These can then be integrated into precision medicine studies to investigate the drivers of patient‐specific disease outcomes. ABSTRACT We propose a
Christian Anderson   +11 more
wiley   +1 more source

On the periodic variations of geomagnetic activity indices Ap and ap [PDF]

open access: yesAnnales Geophysicae, 1998
Yearly averages of geomagnetic activity indices Ap for the years 1967–1984 are compared to the respective averages of ν2·Bs, where v is the solar wind velocity and Bs is the southward interplanetary magnetic field (IMF) component.
H. Schreiber, H. Schreiber
doaj   +1 more source

Automatic Detection of Magnetic δ $\delta$ in Sunspot Groups [PDF]

open access: yesSolar Physics, 2015
14 pages, 5 figures, accepted for publication in ...
Padinhatteeri, Sreejith   +3 more
openaire   +2 more sources

Outcomes of Recurrent Laryngeal Nerve Reinnervation for Pediatric Unilateral Vocal Fold Paralysis

open access: yesThe Laryngoscope, EarlyView.
The objective of this study was to describe voice outcomes from the largest single‐center, single‐surgeon experience with recurrent laryngeal nerve reinnervation for pediatric unilateral vocal fold paralysis. In 102 patients who underwent reinnervation, we demonstrate that reinnervation is an effective and durable intervention for treatment of ...
Theodore A. Gobillot   +2 more
wiley   +1 more source

Time evolution of fine structures of a main sunspot in the SD108 and SD284 groups [PDF]

open access: yesGeofísica Internacional, 2004
Photoheliograms taken at the Pamir Mountain Station (spatial resolution 0.3 arcsec) centered on 650 nm with a 40 nm bandwidth are used to obtain a standardized sequence of images for the dynamical study of some umbra and penumbra details of the main ...
Rafael Gámez Díaz   +2 more
doaj   +3 more sources

Slow‐Phase Nystagmus Velocity as a Risk Factor for Lateral Canal BPPV Recurrence

open access: yesThe Laryngoscope, EarlyView.
This study investigated slow‐phase nystagmus velocity (SPV) at initial diagnosis as an objective vestibular predictor for the recurrence of lateral semicircular canal benign paroxysmal positional vertigo (BPPV). Binomial logistic regression analysis demonstrated that an elevated initial SPV is a novel, independent risk factor for recurrence ...
Chung Yoh Kim, Woo Jin Kim
wiley   +1 more source

Functional Dissociation Between Cervical VEMP and Posterior Canal vHIT in 1770 Unselected Ears

open access: yesThe Laryngoscope, EarlyView.
Cervical VEMP and posterior canal vHIT are conventionally treated as measures of a single inferior vestibular unit. In 1770 unselected ears from a diagnosis‐agnostic registry, the two tests disagreed in 72.7% of ears abnormal on at least one test, with chance‐corrected agreement near zero (κ = 0.097) and unchanged across age strata.
Fumiyuki Goto   +2 more
wiley   +1 more source

Solar flare rates and probabilities based on the McIntosh classification: Impacts of GOES/XRS rescaling and revisited sunspot classifications

open access: yesJournal of Space Weather and Space Climate
In December 2019, the Space Weather Prediction Center (SWPC) started using the GOES1-16 satellite as its primary input for solar X-ray flux monitoring.
Janssens Jan   +3 more
doaj   +1 more source

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