Results 41 to 50 of about 423,592 (152)

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

open access: yesAstronomische Nachrichten, Volume 347, Issue 7, August 2026.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth   +20 more
wiley   +1 more source

Forecasting Continuum Intensity for Solar Active Region Emergence Prediction Using Transformers

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Early and accurate prediction of solar active region (AR) emergence is crucial for space weather forecasting. Building on established Long Short‐Term Memory (LSTM) based approaches for forecasting the continuum intensity decrease associated with AR emergence, this work expands the modeling with new architectures and targets.
Jonas Tirona   +7 more
wiley   +1 more source

Optimization Algorithm for Determining the Source Surface Radius Based on Parker Solar Probe In Situ Measurements From Encounters 1 to 19

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract The Potential Field Source Surface (PFSS) extrapolation is a method for estimating the large scale coronal magnetic field from photospheric magnetograms. The source surface serves as the outer boundary of its solution domain, and is typically a spherical surface.
Shiouhe Wang   +4 more
wiley   +1 more source

Predicting Geomagnetic Activity in the Ascending and Declining Phases of the Solar Cycle

open access: yesSpace Weather, Volume 24, Issue 8, August 2026.
Abstract Most predictions of space climate, that is, the long‐term behavior of the solar‐terrestrial environment, have focused on forecasting the 11‐year sunspot cycle. Geomagnetic activity, on the other hand, has mainly been predicted in shorter, space weather timescales of up to days to weeks.
Timo Qvick   +2 more
wiley   +1 more source

Invisible sunspots and rate of solar magnetic flux emergence [PDF]

open access: yes, 2007
<p><b>Aims:</b> We study the visibility of sunspots and its influence on observed values of sunspot region parameters.</p> <p><b>Methods:</b> We use Virtual Observatory tools provided by AstroGrid to analyse a
Walton, N.A.   +6 more
core   +1 more source

Changes in choroidal and retinal thickness 6 months before and during 18 months of orthokeratology lens treatment in myopic children

open access: yesActa Ophthalmologica, Volume 104, Issue 5, Page e578-e589, August 2026.
Abstract Purpose To investigate changes in choroidal and retinal thickness before and during myopia control treatment with orthokeratology lenses (OKL) in myopic children. Methods This was a sub‐study of CONTROL and CONTROL2 studies. The present study was a 2‐year, prospective, single‐group interventional study consisting of a 6‐month pre‐treatment ...
P. O. Hansen, F. Møller, T. M. Jakobsen
wiley   +1 more source

Multi‐Parametric Magnetic Resonance Imaging to Assess Empagliflozin Effect on the Kidneys in People With Type 2 Diabetes Mellitus: A Pilot Clinical Trial

open access: yesDiabetes, Obesity and Metabolism, Volume 28, Issue 8, Page 7416-7429, August 2026.
ABSTRACT Aims Empagliflozin is renoprotective in Type 2 diabetes mellitus (T2DM). Our primary aim was to assess empagliflozin's effect on glomerular filtration rate and renal vascular resistance using multiparametric MRI (MpMRI). Our secondary aim was to assess the impact of empagliflozin on additional MpMRI‐derived metrics including markers of tissue ...
Ruth P. Lim   +9 more
wiley   +1 more source

Delta High P.T.A. Officers

open access: yes, 1965
Left to Right: Mrs. Ronald Wright-Secretary, Mrs. Robert Clark-President, Mrs. Dorcey Sabey-Vice President being presented the P.T.A. duties by Mrs.

core   +1 more source

Delta Delta Delta welcomes you to Ole Miss [PDF]

open access: yes, 2019
Sorority recruitment brochure, circa 1959, for Delta Delta Delta at the University of Mississippihttps://egrove.olemiss.edu/um_pub/1015/thumbnail ...
Delta Delta Delta. Tri Delta Chapter (University of Mississippi)
core   +1 more source

Modeling Repeatedly Flaring $\delta$ Sunspots

open access: yes, 2016
Comment: Minor changes consistent with Phys Rev Lett ...
Chatterjee, Piyali   +2 more
openaire   +1 more source

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