Results 71 to 80 of about 1,057 (192)

An Ionospheric Storm Scale Index Based on TEC: Comparative Analysis for China Region

Space Weather, Volume 24, Issue 8, August 2026.
Abstract Defining a standardized ionospheric storm scale is challenging given the ionosphere's inherent complexity and susceptibility to multiple driving factors. In this study, a novel ionospheric storm scale (ISS) index is developed based on statistical analysis of total electron content (TEC) data from 257 ground‐based GNSS stations across China ...
Shuangshuang Shi, Yunfei Shi, Kefei Zhang, Bingfeng Tan, Fucheng Song, Peng Sun, Yu Li, Yifan Liu, Shouxing Zhao   +8 more
wiley   +1 more source

The sunspot cycle revisited [PDF]

Journal 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

Predicting Geomagnetic Activity in the Ascending and Declining Phases of the Solar Cycle

Space Weather, Volume 24, Issue 8, August 2026.
Abstract Most predictions of space climate, that is, the long‐term behavior of the solar‐terrestrial environment, have focused on forecasting the 11‐year sunspot cycle. Geomagnetic activity, on the other hand, has mainly been predicted in shorter, space weather timescales of up to days to weeks.
Timo Qvick, Timo Asikainen, Kalevi Mursula   +2 more
wiley   +1 more source

The heliospheric Hale cycle over the last 300 years and its implications for a “lost” late 18th century solar cycle

Journal of Space Weather and Space Climate, 2015
A Hale cycle, one complete magnetic cycle of the Sun, spans two complete Schwabe cycles (also referred to as sunspot and, more generally, solar cycles). The approximately 22-year Hale cycle is seen in magnetic polarities of both sunspots and polar fields,
Owens Mathew J., McCracken Ken G., Lockwood Mike, Barnard Luke   +3 more
doaj   +1 more source

Renal Phosphate Reabsorption in Humans Depends on at Least Three Distinct Transporters Unlike in Mice

Acta Physiologica, Volume 242, Issue 8, August 2026.
ABSTRACT Aim Kidney excretion of phosphate is the gatekeeper of systemic phosphate homeostasis as evident from inborn and acquired diseases. Renal phosphate transporters are a promising target for phosphate‐lowering drugs, but molecular details of human kidney phosphate handling are largely unknown.
Ashley L. Fernandes, Laurine Lang, Jürgen Klar, Anja Giese, Alexander Ehrmann, Rupert Busch, Hannah Auwerx, Christoph Daniel, Nati Hernando, Isabel Rubio‐Aliaga, Carsten A. Wagner   +10 more
wiley   +1 more source

Expression Landscape and Circadian Regulation of lncRNAs in the Kidney

Acta Physiologica, Volume 242, Issue 8, August 2026.
ABSTRACT Recent multi‐omics work shows that the diurnal rhythmicity of kidney function is associated with circadian oscillations in renal mRNA, protein and metabolite abundances. Yet circadian regulation of renal lncRNAs, which are emerging as important modulators of diverse (patho)physiological processes, remains largely unexplored. Here, we provide a
Leonore Wigger, Fanny Durussel, Muriel Auberson, Dmitri Firsov, Yohan Bignon   +4 more
wiley   +1 more source

Discovery of PHB1 as a Novel Candidate Gene in Dominant Optic Atrophy

Clinical Genetics, Volume 110, Issue 2, Page 165-171, August 2026.
A heterozygous PHB1 missense variant (p.Ser147Phe) segregates with autosomal dominant optic atrophy in a multi‐generation family. Structural and cellular analyses suggest altered mitochondrial dynamics, identifying PHB1 as a novel candidate gene for hereditary optic neuropathy. ABSTRACT Hereditary optic neuropathies comprise a genetically heterogeneous
Marija Volk, Aleš Maver, Martina Jarc Vidmar, Nuša Trošt, Tanja Višnjar, Ana Fakin, Lea Kovač, Maja Šuštar Habjan, Lucija Malinar, Sanja Petrović Pajić, Urška Dragin Jerman, Rok Romih, Marko Hawlina, Borut Peterlin   +13 more
wiley   +1 more source

Relationship between geomagnetic classes’ activity phases and their occurrence during the sunspot cycle

Annals of Geophysics, 2009
Four well known geomagnetic classes of activity such as quiet days activity, fluctuating activity, recurrent activity<br />and shock activity time occurrences have been determined not only by using time profile of sunspot number<br />Rz but ...
Frédéric Ouattara
doaj   +1 more source

The Legacy of Policy Inaction in Climate‐Growth Models

International Economic Review, Volume 67, Issue 3, Page 915-935, August 2026.
ABSTRACT To better understand the structure and core mechanisms of a broad class of climate‐growth models, we study a simplified version of the dynamic integrated model of climate and the economy (DICE) through the lens of growth theory. We analytically show that this model features a continuum of saddle‐point stable steady states.
Thomas Steger, Timo Trimborn
wiley   +1 more source

Polar Filaments Capture High-latitude Solar Poloidal Field Interactions and Can Foretell the Future Sunspot Cycle Amplitude before Polar Field Precursors

The Astrophysical Journal Letters
Polar fields at the minimum of a sunspot cycle—which are a manifestation of the radial component of the Sun’s poloidal field—are deemed to be the best indicator of the strength of the toroidal component and hence, the amplitude of the future sunspot ...
Srinjana Routh, Shaonwita Pal, Dibyendu Nandy, Subhamoy Chatterjee, Dipankar Banerjee, Mohd. Saleem Khan   +5 more
doaj   +1 more source