Results 51 to 60 of about 1,224,406 (321)
Are the sunspots really vanishing?
Journal of Space Weather and Space Climate, 2012 Context: The elapsed solar cycle (23) ended with an exceptionally long period of low activity and with unprecedented low levels for various series of solar irradiance and particle flux measurements.
Clette Frédéric, Lefèvre Laure
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Geomagnetic activity recurrences for predicting the amplitude and shape of solar cycle n. 25
Journal of Space Weather and Space Climate, 2021 Predicting solar activity is one of the most challenging topics among the various Space Weather and Space Climate issues. In the last decades, the constant enhancement of Space Climate data improved the comprehension of the related physical phenomena and
Diego Piero, Laurenza Monica
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A Comparative Study of Various Effects of the Sun Based on Ancient Astronomy in the Poems of Nezami and its Reflection in the Khamseh of Shah Tahmasb [PDF]
هنر اسلامی, 2020 For prolonged ages, attention to the sky and celestial phenomena has amazed mankind and encouraged him to discover the secrets and mysteries of the unknown as inquisitively as possible.
Behnaz Shahnavazi
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Weighted estimates for multilinear Fourier multipliers [PDF]
Forum Math. 27(2015), no. 2, 1101--1116, 2012 We prove a H\"{o}rmander type multiplier theorem for multilinear Fourier multipiers with multiple weights. We also give weighted estimates for their commutators with vector $BMO$ functions.
arxiv +1 more source
American Journal of Physics, 1929 The observation of a total eclipse of the sun is one of great excitement and nerve-racking tension. The life of an eclipse astronomer may be likened to that of a hunter after big game. Many months and even years are spent in quietly investigating the problems, a costly equipment is accumulated and each piece of delicate apparatus is carefully tested at
Samuel Alfred Mitchell, W. Petrie
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American Journal of Physics, 2022 Why does the Sun have a radius around 696 000 km? We will see in this article that dimensional arguments can be used to understand the size of the Sun and of a few other things along the way. These arguments are not new and can be found scattered in textbooks.
Fardin, Marc-Antoine, Hautefeuille, M.
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Molecular Oncology, EarlyView.The authors applied joint/mixed models that predict mortality of trifluridine/tipiracil‐treated metastatic colorectal cancer patients based on circulating tumor DNA (ctDNA) trajectories. Patients at high risk of death could be spared aggressive therapy with the prospect of a higher quality of life in their remaining lifetime, whereas patients with a ...
Matthias Unseld +7 more
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FEBS Open Bio, EarlyView.Liver‐specific knockout of N6‐methyladenosine (m6A) methyltransferase METTL3 significantly accelerated hepatic tumor initiation under various oncogenic challenges, contrary to the previously reported oncogenic role of METTL3 in liver cancer cell lines or xenograft models. Mechanistically, METTL3 deficiency reduced m6A deposition on Manf transcripts and
Bo Cui +15 more
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Understanding and Overcoming Immunotherapy Resistance in Skin Cancer: Mechanisms and Strategies
Aging and Cancer, EarlyView.This narrative review explores the mechanisms driving immunotherapy resistance in skin cancer, including tumor microenvironment factors, genetic mutations, and immune evasion strategies. It highlights potential strategies to overcome resistance, offering insights for improving therapeutic outcomes and guiding future research in personalized ...
Shreya Singh Beniwal +8 more
wiley +1 more source
The fine structure of the rotational periods of the solar mean magnetic field
Open Astronomy, 2021 The data of mean magnetic field (MMF) of the Sun obtained at the Wilcox Solar Observatory (Stanford, USA) in 1975–2020 are analysed. It was concluded that the MMF maximum occurs, on average, 1.5–2 years later relative to the maximum of Wolf numbers.
Haneychuk Vasily Ivanovich +1 more
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