Results 51 to 60 of about 2,273 (184)

HELIOS: A Visualization Tool to Decipher the Locations and Dynamical Properties of Expanding Small Magnetic Flux Ropes in the Corona

The Astrophysical Journal Supplement Series
On 2024 December 24, Parker Solar Probe made its closest approach to the Sun, reaching a 9.86 R _⊙ heliocentric distance and capturing high-resolution observations of the solar corona.
Evangelos Paouris, Angelos Vourlidas, Guillermo Stenborg   +2 more
doaj   +1 more source

Exploring the Origin of Solar Energetic Electrons. I. Constraining the Properties of the Acceleration Region Plasma Environment

The Astrophysical Journal, 2023
Solar flare electron acceleration is an efficient process, but its properties (mechanism, location) are not well constrained. Via hard X-ray (HXR) emission, we routinely observe energetic electrons at the Sun, and sometimes we detect energetic electrons ...
Ross Pallister, Natasha L. S. Jeffrey
doaj   +1 more source

Understanding the Evidence Gaps: Diets and Fruit and Vegetable Intake Across Five Diverse Low‐ and Middle‐Income Countries

Maternal &Child Nutrition, EarlyView.
This perspective article synthesizes findings from scoping reviews examining diet and F&V intake, and interventions to increase F&V consumption among population groups in five countries: Benin, Fiji, the Philippines, Sri Lanka and Tanzania. ABSTRACT Poor dietary quality, particularly inadequate fruit and vegetable (F&V) intake, remains a significant ...
Manisha Tharaney, Sonja Y. Hess, Lilia Bliznashka, Dorcas A. Amunga, Fusta Azupogo, Nadia Koyratty, Taryn J. Smith, Imelda Angeles‐Agdeppa, Eva A. Goyena, Frederick Grant, Joyce Kinabo, Irene Medeme Mitchodigni, Anasaini Moala Silatolu, Renuka Silva, Mutinta Hambayi, Thushanthi Perera, Deanna K. Olney   +16 more
wiley   +1 more source

X‐ray spectral observations of a solar active region corona [PDF]

Geophysical Research Letters, 1997
We study the X‐ray flux and electron temperature variation of the corona above a solar active region. Electron temperatures are determined using data from the S xv channel of the Bragg crystal spectrometer (BCS) instrument on board the Yohkoh satellite.
openaire   +1 more source

A Parametric Study of Solar Wind Properties and Composition Using Fluid and Kinetic Solar Wind Models

The Astrophysical Journal
The physical processes in the solar corona that shape the solar wind remain an active research topic. Modeling efforts have shown that energy and plasma exchanges near the transition region play a crucial role in modulating solar wind properties ...
Paul Lomazzi, Alexis P. Rouillard, Michael A. Lavarra, Nicolas Poirier, Pierre-Louis Blelly, Jean-Baptiste Dakeyo, Viviane Pierrard, Victor Réville, Christian Vocks, Simon Thomas   +9 more
doaj   +1 more source

Reduced cardiovascular mortality at moderate altitude: a putative role of physical activity and body mass

The Journal of Physiology, EarlyView.
Abstract figure legend Benefits of performing physical exercise at moderate altitude. At moderate altitude, increased resting metabolic rate and physical exertion promote physical fitness and exercise tolerance, whereas hypoxia suppresses appetite and elicits adaptations that increase tissue O2 delivery while augmenting O2‐independent ATP production ...
Robert T. Mallet, Johannes Burtscher, Hannes Gatterer, Katharina Hüfner, Samuel Verges, Tadej Debevec, Martin Burtscher   +6 more
wiley   +1 more source

Localized Heating and Dynamics of the Solar Corona due to a Symbiosis of Waves and Reconnection

The Astrophysical Journal
The Sun’s outer atmosphere, the corona, is maintained at mega-Kelvin temperatures and fills the heliosphere with a supersonic outflowing wind. The dissipation of magnetic waves and direct electric currents are likely to be the most significant processes ...
A. K. Srivastava, Sripan Mondal, Eric R. Priest, Sudheer K. Mishra, David I. Pontin, R.Y. Kwon, Ding Yuan, K. Murawski, Ayumi Asai   +8 more
doaj   +1 more source

Surface Ligand Engineering in Quantum Dot Photocatalysis: Mechanisms, Design Principles, and Applications

Advanced Chemical Engineering, Volume 1, Issue 2, December 2026.
Surface ligands govern quantum dot photocatalysis through thermodynamic band‐edge tuning, kinetic charge‐transfer regulation, and microenvironmental control. Rational ligand engineering, using short‐chain, inorganic, conjugated, or dual‐ligand systems, enables efficient solar fuel production, selective organic transformations, environmental remediation,
Yali Weng, Huakang Yang, Zining Zhang, Yue Zhou, Dongxiang Luo, Xiao Liu   +5 more
wiley   +1 more source

Power-law Indices of EUV Intensity Power Spectrum in Flaring Coronal Active Regions

The Astrophysical Journal
Solar intensity power spectra are usually characterized by colored noise, with the spectral energy following a segmented power-law function of frequency, S ( f ) ∝ f ^− ^α , over different frequency ranges. Typically, the power-law index exceeds 1 in the
Sihui Zhong, Dmitrii Y. Kolotkov, Valery M. Nakariakov   +2 more
doaj   +1 more source

PROSWIN: Probabilistic Solar Wind Speed Forecasting Using Deep Distributional Regression From Solar Images

AGU Advances, Volume 7, Issue 8, November 2026.
Abstract Accurately predicting fast solar wind conditions is challenging, as uncertainties are large and unquantified by traditional single‐value prediction models. In particular, the risks of high‐speed solar wind streams (HSSs), which can cause damage to technological infrastructure, cannot be reliably assessed without probabilistic forecasts.
Daniel Collin, Yuri Shprits, Luca Chiarabini, Stefan J. Hofmeister, Nadja Klein, Guillermo Gallego   +5 more
wiley   +1 more source