Results 21 to 30 of about 5,828,779 (146)

The mean tilt of sunspot bipolar regions: Theory, simulations and comparison with observations [PDF]

, 2020
A theory of the mean tilt of sunspot bipolar regions (the angle between a line connecting the leading and following sunspots and the solar equator) is developed.
Safiullin, N., Kleeorin, N., Porshnev, S., Kleeorin, Nathan,, Rogachevskii, Igor,, Rogachevskii, I., Tlatov, A., Kuzanyan, K.   +7 more
core   +1 more source

Internet-based psychoeducation for bipolar disorder: a qualitative analysis of feasibility, acceptability and impact [PDF]

, 2012
<p>Background: In a recent exploratory randomised trial we found that a novel, internet-based psychoeducation programme for bipolar disorder (Beating Bipolar) was relatively easy to deliver and had a modest effect on psychological quality of life ...
Simpson, S.A., Daniel J Smith, Poole, R., Smith, D.J., Poole, Ria, Simpson, Sharon Anne, Sharon A Simpson, Ria Poole, Smith, Daniel J., Poole Ria, Simpson Sharon A, Smith Daniel J   +11 more
core   +2 more sources

Are the strengths of solar cycles determined by converging flows towards the activity belts [PDF]

, 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 of the cycle strength.
R. Cameron, M. Schüssler
semanticscholar   +1 more source

The Growth and Decay of Individual Sunspots and Pores

The Astrophysical Journal
An analysis of the photometric growth and decay rates of sunspots and pores was carried out. According to the Solar Dynamics Observatory/Helioseismic and Magnetic Imager data for the period 2010 May–2025 March, ≈3.5 × 10 ^5 sunspots and pores were ...
Andrei G. Tlatov
doaj   +1 more source

Kcnv2 E151X Mouse Captures Hallmarks of KCNV2‐Associated Retinal Dystrophy

Clinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Background KCNV2‐associated retinopathy is a rare inherited retinal dystrophy caused by variants in the KCNV2 gene, leading to disrupted photoreceptor behaviour and progressive deterioration of vision. Patients have characteristic electroretinography abnormalities, including reduced cone response, delayed and reduced rod response to low light ...
Nermina Xhaferri, Sumit Biswas, Benjamin Davies, Moritz Lindner   +3 more
wiley   +1 more source

Chromospheric seismology above sunspot umbrae [PDF]

, 2015
Context: The acoustic resonator is an important model for explaining the three-minute oscillations in the chromosphere above sunspot umbrae. The steep temperature gradients at the photosphere and transition region provide the cavity for the acoustic ...
G. J. J. Botha, B. Snow, Snow, Ben, Botha, Gert, Regnier, Stephane, S. Régnier   +5 more
core   +1 more source

Low-latitude Sunspot Group Tilt Angles in 15–24 Activity Cycles

The Astrophysical Journal
An analysis of the tilt angles of the active regions in 15–24 activity cycles was performed. We used data from measurements of magnetic fields in the sunspot umbra in the period 1918–2019 at the Mount Wilson Observatory, as well as the tilt angles of ...
Andrey G. Tlatov
doaj   +1 more source

Mesenchymal Stem Cell‐Derived Extracellular Vesicles Ameliorate NaIO3‐Induced Dry AMD by Delivering miR‐486‐3p to Inhibit Lipocalin‐2‐Mediated Ferroptosis

MedComm, Volume 7, Issue 10, October 2026.
Our study reveals a novel mechanism by which MSC‐derived EVs alleviate NaIO3‐induced dry AMD‐like pathology. MSC‐EVs deliver miR‐486‐3p into retinal cells to directly inhibit the ferroptosis‐promoting target gene Lcn2. Concurrently, downregulated Lcn2 restores intracellular Gpx4 expression, thereby suppressing ferroptosis and rescuing retinal ...
Zheng Li, Tujing Zhao, Lin Ye, Runze Li, Huaping Tian, Ruilin Liao, Lulin Huang   +6 more
wiley   +1 more source

Differential Rotation of Individual Sunspots and Pores

The Astrophysical Journal
The analysis of the rotation rate of individual sunspots and pores was performed according to the data from the processing of observations by the Solar Dynamics Observatory/Helioseismic and Magnetic Imager in the period 2010–2024.
Andrey G. Tlatov, Kseniya A. Tlatova
doaj   +1 more source

Insights into the modulation of age‐related macular degeneration: Molecular and systems‐level perspectives

Acta Ophthalmologica, Volume 104, Issue S293, Page S4-S35, October 2026.
ENGLISH SUMMARY In developed countries, age‐related macular degeneration (AMD) is the leading cause of visual impairment in the aging population. Understanding of its pathogenesis is limited and the number of patients is predicted to continue rising. AMD is classified into two main forms: dry and neovascular AMD (dAMD and nAMD, respectively).
Hanna Heloterä
wiley   +1 more source