Results 111 to 120 of about 6,211,798 (244)

Scalable, Advanced Machine Learning Based Approaches for Stellar Flare Identification: Application to TESS Short-cadence Data and Analysis of a New Flare Catalog

open access: yesThe Astronomical Journal
We apply multialgorithm machine learning models to TESS 2 minute survey data from Sectors 1–72 to identify stellar flares. Models trained with deep neural network, random forest, and XGBoost algorithms utilize four flare light-curve characteristics as ...
Chia-Lung Lin   +3 more
doaj   +1 more source

Efficacy and Safety of Elagolix Versus Dienogest for Treatment of Moderate‐to‐Severe Endometriosis Pain: A Phase III, Multicentric, Double‐Blind, Active‐Controlled, Non‐Inferiority Study

open access: yesBJOG: An International Journal of Obstetrics &Gynaecology, Volume 133, Issue 11, Page 2025-2034, October 2026.
ABSTRACT Objective To compare the efficacy, safety and tolerability of elagolix with dienogest in women with moderate‐to‐severe endometriosis‐associated pain. Design A multicentre, double‐blind, double‐dummy, randomised, parallel‐group, active‐controlled, non‐inferiority phase III study. Setting Nineteen clinical centres across India.
Sneha Bhoir   +24 more
wiley   +1 more source

Design, Synthesis, and Biological Evaluation of Pyrazolyl Thioureas (PTUs) as SIRT1 and SIRT2 Inhibitors

open access: yesChemMedChem, Volume 21, Issue 18, 28 September 2026.
Pyrazolyl thioureas were designed and synthesized as sirtuin 1 (SIRT1) and sirtuin 2 (SIRT2) inhibitors. 6a (IC50 (SIRT1) = 5.3 µM; IC50 (SIRT2) = 2.2 µM) and 7f (IC50 (SIRT1) = 12.4 µM; IC50 (SIRT2) = 13.6 µM) showed micromolar inhibition on target enzymes and HepG2‐based assays confirmed a SIRT2‐mediated effect on tubulin acetylation. Docking studies
Matteo Lusardi   +10 more
wiley   +1 more source

Sun-as-a-star Analysis of the X1.6 Flare on 2023 August 5: Dynamics of Postflare Loops in Spatially Integrated Observational Data

open access: yesThe Astrophysical Journal Letters
Postflare loops are loop-like plasmas observed during the decay phase of solar flares, and they are expected to exist for stellar flares. However, it is unclear how postflare loops are observed in stellar flares’ cases.
Takato Otsu   +3 more
doaj   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

open access: yesAdvanced Engineering Materials, Volume 28, Issue 17, 9 September 2026.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai   +6 more
wiley   +1 more source

X-ray flares from Sgr A * : Star-disk interactions?

open access: yes, 2003
Sgr A*, the putative black hole in our Galactic Center (GC), is extraordinary dim in all frequencies. Apparently the black hole is unable to accrete at the Bondi accretion rate for some reason.
Sunyaev, R.   +8 more
core   +1 more source

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

open access: yesThe Anatomical Record, Volume 309, Issue 9, Page 2262-2285, September 2026.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li   +12 more
wiley   +1 more source

A Long-duration Superflare on the K Giant HD 251108

open access: yesThe Astrophysical Journal
Many giant stars are magnetically active, which causes rotational variability, chromospheric emission lines, and X-ray emission. Large outbursts in these emission features can set limits on the magnetic field strength and thus constrain the mechanism of ...
Hans Moritz Günther   +12 more
doaj   +1 more source

Quark-Nova Explosion inside a Collapsar: Application to Gamma Ray Bursts

open access: yesAdvances in Astronomy, 2009
If a quark-nova occurs inside a collapsar, the interaction between the quark-nova ejecta (relativistic iron-rich chunks) and the collapsar envelope leads to features indicative of those observed in Gamma Ray Bursts.
Rachid Ouyed   +3 more
doaj   +1 more source

Oral Relapsing Lymphomatoid Papulosis: A Case Report

open access: yesClinical Case Reports, Volume 14, Issue 9, September 2026.
ABSTRACT Lymphomatoid papulosis (LyP) is a CD30+ T‐cell lymphoproliferative disorder rarely involving mucosa, where it may mimic aggressive lymphomas. This case highlights its chronic relapsing course, diagnostic challenges with ALK‐negative anaplastic T‐cell lymphoma, and the importance of long‐term follow‐up despite a favorable prognosis.
A. Bitton   +7 more
wiley   +1 more source

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