Results 31 to 40 of about 5,022 (266)

Observations of Electron Secondary Reconnection in Magnetic Reconnection Front

The Astrophysical Journal
Magnetic reconnection, a fundamental plasma process transforming magnetic field energy into particle energy, is ubiquitous in space and responsible for many explosive phenomena, such as solar flares and gamma-ray bursts.
C. M. Liu, J. B. Cao, X. N. Xing, Z. Z. Chen, H. T. Huang   +4 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

A Mechanism for Electrostatic Solitary Waves Observed in Ganymede’s Magnetopause

The Astrophysical Journal
On 2021 June 7, the Juno spacecraft carried out a close flyby of Ganymede, Jupiter’s largest moon, traversing through the previously unexplored wake region as well as the magnetopause with a closest approach altitude of 1047 km.
R. Rubia, M. B. Dhanya, Kuldeep Singh, Ioannis Kourakis   +3 more
doaj   +1 more source

Interaction of HS1BP3 with cortactin modulates TKS5 localisation, cell secretion and cancer malignancy

Molecular Oncology, EarlyView.
Here, we demonstrate that HS1BP3 interacts with Cortactin through a proline‐rich region (PRR3.1) and show that this interaction, and HS1BP3 itself, promote cancer cell proliferation and invasion. Inhibition of this interaction leads to build‐up of TKS5 in multivesicular endosomes and altered secretion of CD63 and CD9, providing an explanation for the ...
Arja Arnesen Løchen, Kristiane Søreng, Chiara Veroni, Laura Trachsel‐Moncho, Nagham Asp, Robin Gaupset, Lars Gustav Lyckander, Helene Knævelsrud, Lars Eftang, Anne Simonsen   +9 more
wiley   +1 more source

Artificial Polytropic Behavior of Plasmas Determined from the Application of Chi-squared Minimization Analysis to Data with Significant Statistical Uncertainty

The Astrophysical Journal
The effective polytropic index of plasmas is typically determined from the analysis of the plasma temperature (or pressure) and density, which are plasma bulk parameters determined from analyses of in situ plasma observations.
Georgios Nicolaou, George Livadiotis, Charalambos Ioannou   +2 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  

Hall Fields and Current Systems of Magnetic Reconnection under Asymmetric Conditions

The Astrophysical Journal, 2023
The Hall effect is a key component of collisionless reconnection. A previous study showed that a quadrupolar Hall pattern under symmetric conditions degenerates into a bipolar pattern under highly asymmetric conditions.
Y. C. Zhang, S. Y. Tang
doaj   +1 more source

Longitudinal genome‐wide aneuploidy measurements in circulating cell‐free DNA to predict lack of benefit from pembrolizumab in patients with metastatic urothelial cancer

Molecular Oncology, EarlyView.
Many patients with urothelial cancer do not benefit from treatment with pembrolizumab, while at risk of severe side effects. Changes in the levels of circulating tumor DNA early during treatment, measured by a simple and affordable assay that can be easily implemented in the clinic, can be used as a prognostic tool to identify these patients.
Youssra Salhi, Stavros Makrodimitris, Sandra van Wilpe, Iris te Paske, Vanja de Weerd, Corine M. Beaufort, Hans M. Westgeest, Jens Voortman, Maureen J. B. Aarts, Maud Rijnders, Astrid A. M. van der Veldt, Ronald de Wit, Niven Mehra, Saskia M. Wilting, Debbie G. J. Robbrecht   +14 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

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