Results 51 to 60 of about 1,193,818 (298)

Relativistic electrons generated at Earth's quasi-parallel bow shock. [PDF]

, 2019
Plasma shocks are the primary means of accelerating electrons in planetary and astrophysical settings throughout the universe. Which category of shocks, quasi-perpendicular or quasi-parallel, accelerates electrons more efficiently is debated.
Angelopoulos, Vassilis, Liu, Terry Z, Lu, San   +2 more
core   +1 more source

Gyrokinetic electron acceleration in the force-free corona with anomalous resistivity

, 2006
We numerically explore electron acceleration and coronal heating by dissipative electric fields. Electrons are traced in linear force-free magnetic fields extrapolated from SOHO/MDI magnetograms, endowed with anomalous resistivity ($\eta$) in localized ...
Alissandrakis, Amari, Arzner, Arzner, Arzner, Aschwanden, Aschwanden, Aschwanden, Aschwanden, Aulanier, Aulanier, Benz, Benz, Brizard, Chiu, Dmitruk, Dmitruk, Dreicer, Dumont, Fleishman, Fleishman, Fleishman, Fludra, Gallagher, Gary, Georgoulis, Giménez de Castro, Gudiksen, Güdel, K. Arzner, Karimabadi, Koch, Kotov, Kuijpers, L. Vlahos, Lee, Lin, Littlejohn, Littlejohn, Littlejohn, MacLeod, Matthaeus, Nita, Nobile, Parker, Parker, Parker, Petrie, Press, Saint-Hilaire, Schlickeiser, Schumacher, Spicer, Vlahos, Wheatland   +54 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Factors Influencing the Biological Effects of FLASH Irradiation

Antioxidants
Among the methods for increasing the specificity of tumor radiotherapy, FLASH radiotherapy (FLASH-RT) stands out, having recently entered clinical trials.
Sergey Igorevich Glukhov, Elena Ananievna Kuznetsova, Sergey Vsevolodovich Akulinichev   +2 more
doaj   +1 more source

Implications of Kappa Suprathermal Halo of the Solar Wind Electrons

Frontiers in Astronomy and Space Sciences, 2022
The electron velocity distributions measured in-situ in space plasmas reveal two central populations, a low-energy and highly dense (quasi-)thermal core, and a more diffuse but hotter suprathermal halo. Even if the core contributes much more to the total
Viviane Pierrard, Viviane Pierrard, Marian Lazar, Marian Lazar, Stepan Stverak, Stepan Stverak   +5 more
doaj   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Measurement of Non-Photonic Electron Angular Correlations with Charged Hadrons [PDF]

, 2007
Correlations of non-photonic electrons with charged hadrons are studied using the PYTHIA Monte Carlo event generator in p+p collisions at $\sqrt{s_{NN}} = 200$ GeV.
Star Collaboration, Xiaoyan Lin
core   +3 more sources

High Energy Electron-Electron Scattering [PDF]

Physical Review, 1952
Eradicated electron sensitive nuclear emulsions were exposed to 200-Mev electrons at the Berkeley synchrotron. In scanning the electron tracks 427 events were observed in which the scattered electron of lower energy, or knock-on electron, had an energy greater than 30 kev.
Barkas, Walter H., Deutsch, Robert W., Gilbert, F.C., Violet, Charles E.   +3 more
openaire   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source