Results 51 to 60 of about 94,084 (338)

Chaotic saddles in nonlinear modulational interactions in a plasma

, 2012
A nonlinear model of modulational processes in the subsonic regime involving a linearly unstable wave and two linearly damped waves with different damping rates in a plasma is studied numerically. We compute the maximum Lyapunov exponent as a function of
Abraham C.-L. Chian, Erico L. Rempel, Nicholson D. R., Oseledec V. I., Ott E., Rodrigo A. Miranda, Steeb W.-H., Steeb W.-H.   +7 more
core   +2 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Magnetic Island Structures Associated with Kinetic Alfvén Solitary Wave in Two-fluid Plasma

The Astrophysical Journal
We investigate the formation of magnetic islands and the onset of tearing instability within kinetic Alfvén solitary waves in a two-fluid space plasma. These localized structures, featuring internal magnetic shear, naturally support magnetic reconnection
Cheong R. Choi, M.-H. Woo, Peter H. Yoon, Kwangsun Ryu, H. K. Cho, Jungjoon Seough, D.-Y. Lee   +6 more
doaj   +1 more source

Wave Model Development in Multi-Ion Plasmas [PDF]

Journal of Astronomy and Space Sciences, 1999
Near-earth space is composed of plasmas which embed a number of plasma waves. Space plasmas consist of electrons and multi-ion that determine local wave propagation characteristics.
Sung-Hee Song, Dong-Hun Lee, Yoo Surn Pyo   +2 more
doaj  

Long-Term Independence of Solar Wind Polytropic Index on Plasma Flow Speed

Entropy, 2018
The paper derives the polytropic indices over the last two solar cycles (years 1995–2017) for the solar wind proton plasma near Earth (~1 AU). We use ~92-s datasets of proton plasma moments (speed, density, and temperature), measured from the Solar
George Livadiotis
doaj   +1 more source

The Impact of Turbulence on the Ionosphere and Magnetosphere

Frontiers in Astronomy and Space Sciences, 2021
An important property associated with turbulence in plasmas and fluids is anomalous transport. Plasma, being a good conductor, can in addition be affected by turbulence causing an anomalous resistivity that can significantly exceed its classical ...
Patrick Guio, Patrick Guio, Hans L. Pécseli, Hans L. Pécseli   +3 more
doaj   +1 more source

Analysis of Magnetic Fields in Inertial Alfven Wave Collisions

, 2014
Turbulence in astrophysical and space plasmas is dominated by the nonlinear interaction of counterpropagating Alfven waves. Most Alfven wave turbulence theories have been based on ideal plasma models, such as incompressible MHD, for Alfven waves at large
Carter, Troy A., Dorfman, Seth, Drake, Dereth J., Howes, Gregory G., Kletzing, Craig A., Schroeder, James W. R., Shanken, Brian C., Skiff, Frederick   +7 more
core   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

FEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino, Meijie Li, Cécile Fizames, Mattia Adamo, Laurence Lejay, Christian Dubos, Matthieu Platre, Antoine Martin   +7 more
wiley   +1 more source

The Electric Field and Its Impact on the Pitch Angle of Trapped Electrons in a Sub-ion-scale Magnetic Hole

The Astrophysical Journal
Sub-ion-scale magnetic holes (MHs) are ubiquitous structures in plasmas across a wide range of environments. Despite previous observational and modeling efforts, the three-dimensional (3D) electric field in MHs has yet to be adequately resolved.
Z. Z. Chen, T. Y. Wang, Y. Y. Liu, J. Yu, J. Wang, Y. D. Ye, Y. C. Jiang, H. S. Fu, J. Cui, J. B. Cao, R. E. Ergun   +10 more
doaj   +1 more source

Circulating tumor DNA monitoring and blood tumor mutational burden in patients with metastatic solid tumors treated with atezolizumab

Molecular Oncology, EarlyView.
In patients treated with atezolizumab as a part of the MyPathway (NCT02091141) trial, pre‐treatment ctDNA tumor fraction at high levels was associated with poor outcomes (radiographic response, progression‐free survival, and overall survival) but better sensitivity for blood tumor mutational burden (bTMB).
Charles Swanton, Russell W. Madison, Candice Francheska B. Tambaoan, Funda Meric‐Bernstam, Christopher J. Sweeney, Razelle Kurzrock, Howard A. Burris III, David R. Spigel, Hanna Tukachinsky, Jason Hughes, Julia Malato, Bongin Yoo, Tania Szado, Cheryl Schwab, Lincoln W. Pasquina, Amaya Gasco, Katja Schulze, Claire F. Friedman   +17 more
wiley   +1 more source