Results 81 to 90 of about 7,633,755 (347)

The proton pressure tensor as a new proxy of the proton decoupling region in collisionless magnetic reconnection [PDF]

Annales Geophysicae, 2011
Cluster data is analyzed to test the proton pressure tensor variations as a proxy of the proton decoupling region in collisionless magnetic reconnection.
N. Aunai, A. Retinò, G. Belmont, R. Smets, B. Lavraud, B. Lavraud, A. Vaivads   +6 more
doaj   +1 more source

Derivation of the entropic formula for the statistical mechanics of space plasmas

, 2017
. Kappa distributions describe velocities and energies of plasma populations in space plasmas. The statistical origin of these distributions is associated with the framework of nonextensive statistical mechanics. Indeed, the kappa distribution is derived
G. Livadiotis
semanticscholar   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

Molecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka, Wioleta Cieślik, Wojciech Płaziński, Katarzyna Stępnik, Anna Boguszewska‐Czubara, Elżbieta Kot, Robert Musioł, Mateusz Jasica, Anna Mrozek‐Wilczkiewicz, Katarzyna Malarz   +9 more
wiley   +1 more source

Energy Flux Densities in Electron-only Magnetic Reconnection in Space Plasma

The Astrophysical Journal Supplement Series
Electron-only magnetic reconnection, a novel form of magnetic reconnection recently discovered in plasma turbulence, exhibits distinct features from the well-studied standard magnetic reconnection with ion coupling.
Z. Z. Chen, T. Y. Wang, J. Yu, J. Wang, Y. D. Ye, H. S. Fu, J. B. Cao, J. Cui, H. Y. Man, Y. C. Jiang   +9 more
doaj   +1 more source

Collisionless Magnetic Reconnection in Space Plasmas

Frontiers in Physics, 2013
Magnetic reconnection, the merging of oppositely directed magnetic fields that leads to field reconfiguration, plasma heating, jetting and acceleration, is one of the most celebrated processes in collisionless plasmas.
Rudolf A. Treumann, Wolfgang eBaumjohann
doaj   +1 more source

Space-Time Structured Plasma Waves

Physical Review Letters
Electrostatic waves play a critical role in nearly every branch of plasma physics from fusion to advanced accelerators, to astro, solar, and ionospheric physics. The properties of planar electrostatic waves are fully determined by the plasma conditions, such as density, temperature, ionization state, or details of the distribution functions.
J. P. Palastro, K. G. Miller, R. K. Follett, D. Ramsey, K. Weichman, A. V. Arefiev, D. H. Froula   +6 more
openaire   +3 more sources

MAGNETIC NULL POINTS IN KINETIC SIMULATIONS OF SPACE PLASMAS [PDF]

, 2015
We present a systematic attempt to study magnetic null points and the associated magnetic energy conversion in kinetic particle-in-cell simulations of various plasma configurations.
V. Olshevsky, J. Deca, A. Divin, Ivy Bo Peng, S. Markidis, M. Innocenti, E. Cazzola, G. Lapenta   +7 more
semanticscholar   +1 more source

Promiscuous stimulation of HSP70 ATPase activity by parasite‐derived J‐domains

FEBS Open Bio, EarlyView.
The malaria parasite Plasmodium falciparum exports three highly homologous yet functionally divergent J‐domain proteins into human erythrocytes. Here, we show that J‐domains isolated from all three proteins effectively stimulate the ATPase activity of both endogenous host and exported parasite HSP70 chaperones.
Julian Barth, Moritz Koch, Le‐Han Rössner, Johanna Eichhorn, Denys Pogoryelov, Matthias P. Mayer, Jude M. Przyborski   +6 more
wiley   +1 more source

Quasithermal Noise in Magnetized Plasma: Theory and Simulations

The Astrophysical Journal
Quasithermal noise (QTN) spectroscopy has been extensively used as an accurate tool to measure electron density and temperature in unmagnetized space plasmas. The observed spectrum depends on both antenna geometry and plasma kinetic properties.
Xianming Zheng, Mihailo M. Martinović, Kristopher G. Klein, Viviane Pierrard, Mingzhe Liu, Xianghui Xue, Shi Tao, Kun Cheng, Han Wu, Bingkun Yu   +9 more
doaj   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source