Results 31 to 40 of about 105 (95)

The Advective Flux Transport Model: Improving the Far Side with Active Regions Observed by STEREO 304 Å

The Astrophysical Journal
Observations of the Sun’s photospheric magnetic field are often confined to the Sun–Earth line. Surface flux transport (SFT) models, such as the Advective Flux Transport (AFT) model, simulate the evolution of the photospheric magnetic field to produce ...
Lisa A. Upton, Ignacio Ugarte-Urra, Harry P. Warren, David H. Hathaway   +3 more
doaj   +1 more source

Novel Combined Approach for Vision‐Preserving Iridociliary Tumour Excision in a Small‐Breed Dog: Contralateral Iris Excision With En‐Bloc Scleral Resection

Veterinary Medicine and Science, Volume 12, Issue 2, March 2026.
• A 2.8 mm corneal paracentesis positioned opposite to the tumour location enabled fine iris scissors insertion for precise excision of tumour‐bearing iris tissue under miotic guidance with pilocarpine 2%. • A fornix‐based conjunctival peritomy 5 mm from the limbus and stepped scleral flap approach allowed circumferential deep scleral incision with 2–3 
Jae‐Ik Kang, Jeong‐Eun Yeom, Kyung‐Mee Park   +2 more
wiley   +1 more source

The treatment of magnetic buoyancy in flux transport dynamo models

, 2016
One important ingredient of flux transport dynamo models is the rise of the toroidal magnetic field through the convection zone due to magnetic buoyancy to produce bipolar sunspots and then the generation of the poloidal magnetic field from these bipolar
Choudhuri, Arnab Rai, Hazra, Gopal
core   +1 more source

Neuroinflammation‐Associated Optic Structural–Functional Degeneration in Early Diabetic Optic Neuropathy

Journal of Diabetes, Volume 18, Issue 3, March 2026.
OCT imaging assessments and visual tests, which were validated by pyroptosis of retinal ganglion cells (RGC) and upregulation of NLRP3 and GSDMD expression, established an early structure‐function‐pathology diabetic optic neuropathy (DON) model in high glucose & obesity mice. Early retinal nerve fiber layer (RNFL)/total retinal thickness (TRT) thinning
Jingyuan Zhu, Jinyuan Wang, Haihan Zhang, Mingyang Wang   +3 more
wiley   +1 more source

Analysis of BMR Tilt from AutoTAB Catalog: Hinting toward the Thin Flux Tube Model?

The Astrophysical Journal
One of the intriguing mechanisms of the Sun is the formation of bipolar magnetic regions (BMRs) in the solar convection zone (CZ), which are observed as regions of concentrated magnetic fields of opposite polarity on the photosphere.
Anu Sreedevi, Bibhuti Kumar Jha, Bidya Binay Karak, Dipankar Banerjee   +3 more
doaj   +1 more source

Personalized Models of Biological Barriers and Their Diseases: Recent Progress with Organs‐On‐Chips

Advanced Biology, Volume 10, Issue 2, February 2026.
Buck and Bugter et al. explore the architectural diversity and physiological functions of human barrier systems and reveal how organ‐on‐chip platforms, particularly those integrating patient‐derived cells, are advancing barrier disease modeling. They highlight how emerging biological and technological advances can be used to bridge the gap between ...
Franziska Buck, Jeroen Bugter, Gizem Yorukoglu, Mina Kazemzadeh Dastjerd, Thomas E. Winkler   +4 more
wiley   +1 more source

Addressing Known Challenges in Solar Flare Forecasting I: Limb‐Flare Prediction With a 4π Full‐Heliosphere Framework

Space Weather, Volume 24, Issue 2, February 2026.
Abstract A demonstrated failure mode for operational solar flare forecasting is the inability to forecast flares that occur near, or just beyond, the solar limb. To address this shortcoming, we develop a “4π $4{\uppi }$” full‐heliosphere event forecasting framework and evaluate its statistical classification ability against this specific challenge.
K. D. Leka, Eric L. Wagner, Lisa Upton, Bibhuti Kumar Jha, Kiran Jain, Sara Petty   +5 more
wiley   +1 more source

Are the strengths of solar cycles determined by converging flows towards the activity belts?

, 2012
It is proposed that the observed near-surface inflows towards the active regions and sunspot zones provide a nonlinear feedback mechanism that limits the amplitude of a Babcock-Leighton-type solar dynamo and determines the variation ...
Cameron, R., Schüssler, M., M. Schüssler, R. H. Cameron   +3 more
core   +1 more source

MSC‐Derived Exosomal lnc‐AGT‐3: A Novel Anti‐Angiogenic Target in Age‐Related Macular Degeneration Through p53 Signaling Pathway

Aging Cell, Volume 25, Issue 2, February 2026.
MSC‐derived exosomes deliver lnc‐AGT‐3 to vascular endothelial cells, where it binds hnRNP K in the nucleus. This interaction inhibits p53 ubiquitination, enhancing p53 stabilization and transcriptional activation of anti‐angiogenic targets TSP1. Consequently, p53‐mediated signaling is potentiated, effectively suppressing choroidal neovascularization ...
Lingjie Kong, Xiaoyan Han, Siyi Qi, Duo Li, Jingyue Zhang, Linyu Zhang, Shujie Zhang, Qin Jiang, Biao Yan, Chen Zhao   +9 more
wiley   +1 more source

Single‐Cell RNA Sequencing of Retina Reveals Nna1 Upregulation in Myopic Diabetic Retinopathy as a Protective Factor Against Diabetic Damage

Advanced Science, Volume 13, Issue 5, 27 January 2026.
This study investigates a schematic overview of the mechanistic pathways. The relationship between myopia and DR has long been of clinical interest. In diabetic mice, Nna1 expression is downregulated, whereas in diabetic mice with FDM, Nna1 expression is upregulated–particularly in Müller cells–accompanied by decreased vascular endothelial growth ...
Lihui Xie, Yingjun Cai, Bolin Chen, Bowen Li, Jing Zou, Huizhuo Xu   +5 more
wiley   +1 more source