Results 61 to 70 of about 2,541 (217)

S5 1803+78 Revisited

open access: yesActa Polytechnica, 2012
We report on our optical monitoring of the BL Lac object S5 1803+78 from 1996 to 2011. The source showed no clear periodicity, but a time scale of about 1 300 days between major flares is possibly present. No systematic trend of the color index with flux
R. Nesci   +3 more
doaj  

Rising Near-ultraviolet Spectra in Stellar Megaflares

open access: yesThe Astrophysical Journal
Flares from M dwarf stars can attain energies up to 10 ^4 times larger than solar flares but are generally thought to result from similar processes of magnetic energy release and particle acceleration.
Adam F. Kowalski   +7 more
doaj   +1 more source

The Role of Artificial Intelligence in Modern Allergology: A Review of Applications in Diagnosis, Prediction, and Management

open access: yesJEADV Clinical Practice, EarlyView.
ABSTRACT Artificial Intelligence is rapidly transforming allergology by enhancing diagnosis, risk prediction, automation, patient communication, education, and therapy development. Machine learning approaches, including convolutional neural networks, recurrent architectures, and transformer‐based models, enable analysis of complex datasets from ...
Sebastian Seurig   +2 more
wiley   +1 more source

Startups Driving Artificial Intelligence Into Clinical Dermatology

open access: yesJEADV Clinical Practice, EarlyView.
ABSTRACT Artificial intelligence (AI) is rapidly transitioning from innovation to routine clinical application in dermatology. This review examines how AI‐enabled technologies are being developed and integrated across diverse clinical purposes and workflows.
Dominique Du Crest   +10 more
wiley   +1 more source

A Statistical Study of Soft X-Ray Flares on Solar-type Stars

open access: yesThe Astrophysical Journal
The statistical characteristics of stellar flares at optical bands have received extensive study, but they remain to be studied at soft X-ray bands, in particular for solar-type stars.
Z. H. Zhao   +4 more
doaj   +1 more source

Ultrasound‐Guided Liposomal vs. Conventional Bupivacaine Erector Spinae Plane Block Plus Gabapentin for Postherpetic Neuralgia

open access: yesThe Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT This study aimed to compare efficacy and safety of ultrasound‐guided erector spinae plane block (ESPB) using liposomal (LB) versus conventional bupivacaine (CB), each plus standardized gabapentin, in patients with postherpetic neuralgia (PHN). A total of 116 PHN patients were randomized to ESPB‐LB or ESPB‐CB; both groups received standardized ...
Xia‐Jing Xu   +3 more
wiley   +1 more source

The Unluckiest Star: A Spectroscopically Confirmed Repeated Partial Tidal Disruption Event AT 2022dbl

open access: yesThe Astrophysical Journal Letters
The unluckiest star orbits a supermassive black hole elliptically. Every time it reaches the pericenter, it shallowly enters the tidal radius and gets partially tidally disrupted, producing a series of flares.
Zheyu Lin   +15 more
doaj   +1 more source

Beam electrons as a source of Hα flare ribbons

open access: yesNature Communications, 2017
The dynamic of plasma heating in solar flares can be effectively derived from observations of optical hydrogen H-α line emissions. Here the authors report the observation of a C1.5 class flare that produced two H-α ribbons, interpreted combining ...
Malcolm Druett   +5 more
doaj   +1 more source

Safety profile comparison of intra‐articular corticosteroids, hyaluronic acid, platelet‐rich plasma, and cell‐based injections for knee osteoarthritis: A systematic review and meta‐analysis by the ESSKA Orthobiologics Initiative

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose The aim was to compare the safety profiles of corticosteroids (CS), hyaluronic acid (HA), blood‐derived products based on platelet concentrates (for simplicity indicated as PRP ‐ platelet‐rich plasma ‐ being PRP the most common product), and cell‐based therapies (namely products exploiting the therapeutic function of mesenchymal ...
Alessandro Bensa   +8 more
wiley   +1 more source

Reclaimed Well Sites on Salt Affected Soils: Electrical Conductivity and Sodium Adsorption Ratio as Plant Community Response Indicators

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Salt affected soils are common worldwide, resulting from natural causes and anthropogenic activities. Saline and sodic soils often occur in association with oil and gas production, impacting soil properties which can impede vegetation growth and development.
Laura Bony   +3 more
wiley   +1 more source

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