Results 71 to 80 of about 773,976 (338)

General scaling laws of space charge effects in field emission

New Journal of Physics, 2021
The characteristics of field electron and ion emission change when the space charge formed by the emitted charge is sufficient to suppress the extracting electric field. This phenomenon is well described for planar emitting diodes by the one dimensional (
A Kyritsakis, M Veske, F Djurabekova
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Numerical Simulation of Spacecraft Charging Attributed to Ionospheric Plasma in Polar and Equatorial Environment

Indonesian Journal of Geography, 2020
The presence of spacecraft in ionospheric plasma can change plasma properties, vice versa plasma can lead to charge buildup on spacecraft. The level of charging, through electric potential of spacecraft, initially depends on plasma density.
Nizam Ahmad, Hideyuki Usui
doaj   +1 more source

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

CDK11 inhibition induces cytoplasmic p21WAF1 splice variant by p53 stabilisation and SF3B1 inactivation

Molecular Oncology, EarlyView.
CDK11 inhibition stabilises the tumour suppressor p53 and triggers the production of an alternative p21WAF1 splice variant p21L, through the inactivation of the spliceosomal protein SF3B1. Unlike the canonical p21WAF1 protein, p21L is localised in the cytoplasm and has reduced cell cycle‐blocking activity.
Radovan Krejcir, Lukasz Arcimowicz, Lucia Martinkova, Vaclav Hrabal, Filip Zavadil Kokas, Tomas Henek, Martina Kucerikova, Ondrej Bonczek, Pavlina Zatloukalova, Lenka Hernychova, Philip J. Coates, Borivoj Vojtesek, David P. Lane   +12 more
wiley   +1 more source

Poloidally asymmetric potential formation on plasma boundary in axisymmetric magnetic field

Frontiers in Physics
To study the symmetry of electrical potential, we model plasma transport in the edge region of a toroidal device with two spatial dimensions (2D) and three coordinates for velocities (3V) using a Particle-In-Cell (PIC) code.
Trang Le, Trang Le, Yasuhiro Suzuki, Hiroaki Ohtani, Hiroaki Ohtani, Hiroki Hasegawa, Hiroki Hasegawa, Toseo Moritaka, Toseo Moritaka   +8 more
doaj   +1 more source

Taylor particle-in-cell transfer and kernel correction for material point method

Computer Methods in Applied Mechanics and Engineering, 2023
Keita Nakamura, S. Matsumura, T. Mizutani   +2 more
semanticscholar   +1 more source

Particle-in-Cell Simulations of Quantum Plasmas

Room-temperature metals and semi-metals which consist of a gas of bound electrons in a near-continuum band structure can be classified as cold quantum plasmas. This insight suggests that Particle-in-Cell (PIC) simulations, traditionally used for modeling classical plasmas, may be adapted for the next generation of nanoscopic simulations in photonics ...
Ngirmang, Gregory K., Do, Hue T. B., Liu, Guangxin, Bosman, Michel, Wu, Lin   +4 more
openaire   +2 more sources

Adhesive contact between cylindrical (Ebola) and spherical (SARS-CoV-2) viral particles and a cell membrane [PDF]

, 2020
Jiajun Wang, Nicole Lapinski, Xiao Hui Zhang, Anand Jagota   +3 more
openalex   +1 more source

Biological Function of Exosome-like Particles Isolated from Rose (Rosa Damascena) Stem Cell Culture Supernatant [PDF]

, 2023
Yu Jin Won, Esther Lee, Seon Young Min, Byong Seung Cho   +3 more
openalex   +1 more source