Results 51 to 60 of about 3,105 (240)

The Functional Role and Molecular Characterization of the Therapeutic Target CLDN6 in Germ Cell Tumors

open access: yesAndrology, EarlyView.
ABSTRACT Background The tight junction protein CLDN6 has been identified as a cancer‐associated cell surface marker that is rarely expressed in healthy tissues. In testicular germ cell tumors (GCT), CLDN6 is particularly detectable in seminomas, embryonal carcinomas, and choriocarcinomas.
Jule Zwick   +7 more
wiley   +1 more source

Maximal growth rate of the ascending phase of a sunspot cycle for predicting its amplitude

open access: yes, 2022
Forecasting the solar cycle amplitude is important for a better understanding of the solar dynamo as well as for many space weather applications. We demonstrated a steady relationship between the maximal growth rate of sunspot activity in the ascending ...
Jain, Shantanu   +13 more
core   +1 more source

Revisiting the Question: The Cause of the Solar Cycle Variation of Total Solar Irradiance

open access: yesAdvances in Astronomy, 2019
The Mg II index and sunspot area are usually used to represent the intensification contribution by solar bright structures to total solar irradiance (TSI) and sunspot darkening, respectively.
N. B. Xiang
doaj   +1 more source

A Comparative Study of non-deep Learning, Deep Learning, and Ensemble Learning Methods for Sunspot Number Prediction

open access: yesApplied Artificial Intelligence, 2022
Solar activity has significant impacts on human activities and health. One most commonly used measure of solar activity is the sunspot number. This paper compares three important non-deep learning models, four popular deep learning models, and their five
Yuchen Dang, Ziqi Chen, Heng Li, Hai Shu
doaj   +1 more source

The oscillatory response of the electroretinogram and neuronal adaptation

open access: yesActa Ophthalmologica, EarlyView.
Abstract After more than 50 years, there still remains a challenge and an interest to know more as well as extend and deepen our understanding of the small rapid wavelets, the oscillatory potentials (OPs), of the electroretinogram (ERG) and the neuronal adaptation of the retina.
Lillemor Wachtmeister, Anders Eklund
wiley   +1 more source

Was one sunspot cycle lost in late XVIII century?

open access: yes, 2001
We suggest that one solar cycle was lost in the beginning of the Dalton minimum because of sparse and partly unreliable sunspot observations. So far this cycle was combined with the preceding activity to form the exceptionally long solar cycle #4 in ...
G. A. Kovaltsov   +2 more
core   +1 more source

On the periodic variations of geomagnetic activity indices Ap and ap [PDF]

open access: yesAnnales Geophysicae, 1998
Yearly averages of geomagnetic activity indices Ap for the years 1967–1984 are compared to the respective averages of ν2·Bs, where v is the solar wind velocity and Bs is the southward interplanetary magnetic field (IMF) component.
H. Schreiber, H. Schreiber
doaj   +1 more source

Uniting the Sun’s Hale magnetic cycle and “extended solar cycle” paradigms

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Through meticulous daily observation of the Sun’s large-scale magnetic field the Wilcox Solar Observatory (WSO) has catalogued two magnetic (Hale) cycles of solar activity.
Scott W. McIntosh   +4 more
doaj   +1 more source

The effect of rhegmatogenous retinal detachment on retinal oxygenation

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose Little is known about the effects of retinal detachment on oxygen extraction from retinal vessels. The role of oxygen supply from the retinal vessels in a detached area has not previously been investigated in vivo in humans. Retinal oximetry is a non‐invasive measurement of retinal oxygen saturation.
Anne‐Sofie Petri   +8 more
wiley   +1 more source

Forecasting long-term sunspot numbers using the LSTM-WGAN model

open access: yesFrontiers in Astronomy and Space Sciences
The sunspot number, an indicator of solar activity, is vital for forecasting variations in solar activity and predicting disturbances of the geomagnetic field.
Hao Yang   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy