Results 61 to 70 of about 1,877,814 (242)

The proposed “Waldmeier discontinuity”: How does it affect to sunspot cycle characteristics?

open access: yesJournal of Space Weather and Space Climate, 2012
Recently, Svalgaard has proposed that Waldmeier introduced a discontinuity in the International Sunspot Number (ISN) around 1945. In this paper, we study some characteristics of the sunspot cycle using the classical ISN and the proposed version derived ...
Pérez Aparicio Alejandro Jesús   +2 more
doaj   +1 more source

Relation between Latitude-dependent Sunspot Data and Near-Earth Solar Wind Speed

open access: yesThe Astrophysical Journal, 2023
Solar wind is important for the space environment between the Sun and the Earth and varies with the sunspot cycle, which is influenced by solar internal dynamics.
Qirong Jiao   +3 more
doaj   +1 more source

The sunspot cycle revisited [PDF]

open access: yesJournal of Physics: Conference Series, 2013
The set of sunspot numbers observed since the invention of the telescope is one of the most studied time series in astronomy and yet it is also one of the most complex. Fourteen frequencies are found in the yearly mean sunspot numbers from 1700 to 2011using the Lomb-Scargle periodogram and prewhitening.
openaire   +1 more source

Renal‐vascular axis: unmasking its role in vascular endothelial growth factor‐inhibitor vascular toxicity in cancer patients

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Vascular toxicity is a growing concern in cancer patients receiving vascular endothelial growth factor inhibitor (VEGFi) therapy, posing a significant threat to patient prognosis. While the primary mechanism of VEGFi‐induced vascular toxicity is linked to redox‐sensitive reactions that disrupt vascular tone, leading to hypertension and ...
Grace Whelan, Karla B. Neves
wiley   +1 more source

Temporal and Structural Properties of Sunspot Small Short-living Group and Large Long-living Group Populations

open access: yesThe Astrophysical Journal
We investigate the properties of two types of solar active regions: the small short-living groups (SSGs) and the large long-living groups (LLGs). The combined distribution of areas of active regions is bimodal. When deconvolved, the distributions of each
Yury A. Nagovitsyn   +2 more
doaj   +1 more source

Kcnv2 E151X Mouse Captures Hallmarks of KCNV2‐Associated Retinal Dystrophy

open access: yesClinical &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   +3 more
wiley   +1 more source

Principal component analysis of sunspot cycle shape [PDF]

open access: yes, 2018
Aims. We study the shape of sunspot cycles using the Wolf sunspot numbers and group sunspot numbers of solar cycles 1–23. We determine the most typical “model” cycles and the most asymmetric cycles, and test the validity of the two Waldmeier rules: the ...
Takalo, J. (Jouni)   +5 more
core   +1 more source

Probable Values of Current Solar Cycle Peak

open access: yesAdvances in Astronomy, 2012
An analysis of multiple linear regression method applied to solar cycles 4 to 23 using lagged values of smoothed monthly mean sunspot numbers as independent variables is presented.
V. M. Silbergleit
doaj   +1 more source

Complexity in the sunspot cycle [PDF]

open access: yesAstronomy & Astrophysics, 2009
The occurrence of complexity in the solar cycle, as monitored by the sunspot area butterfly diagram, is investigated by means of the natural orthogonal composition (NOC) technique and information theory approach. Although the butterfly diagram may be reconstructed using only two modes as already found in other papers for the Hale cycle, on deeper ...
G. Consolini, R. Tozzi, P. De Michelis
openaire   +1 more source

Geopolitical Risk and Domestic Bank Deposits

open access: yesFinancial Management, EarlyView.
ABSTRACT We investigate the relationship between global geopolitical risk and bank deposit flows across a wide panel of European countries. Motivated by the pivotal role of deposit stability for financial intermediation and systemic resilience, we explore whether geopolitical shocks alter depositors’ portfolio choices.
Dimitris Anastasiou   +3 more
wiley   +1 more source

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