Results 21 to 30 of about 25,631 (259)

Particle Motion around Charged Black Holes in Generalized Dilaton-Axion Gravity

open access: yesAdvances in High Energy Physics, 2018
The behaviour of massive and massless test particles around asymptotically flat and spherically symmetric, charged black holes in the context of generalized dilaton-axion gravity in four dimensions is studied. All the possible motions are investigated by
Susmita Sarkar   +4 more
doaj   +1 more source

MOTION TYPES OF NEUTRAL TEST PARTICLES IN THE FIELD OF CHARGED OBJECT IN GENERAL RELATIVITY AND THEIR CLASSIFICATION

open access: yesOdessa Astronomical Publications, 2013
In the previous work of one of the au­thors the radial motions of charged test particles in the field of a spherically symmetric charged object in gen­eral relativity were considered and their classification was built.
V. D. Gladush, D. A. Kulikov
doaj   +1 more source

Development of energy analyzer of charged particles

open access: yesEurasian Physical Technical Journal, 2019
The electron-optical characteristics of a mirror energy analyzer based on a non-uniform, hyperbolic decreasing electrostatic field were investigated.
А.О. Saulebekov   +5 more
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

Acceleration of Charged Particles in Astrophysical Plasmas

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The origin of high-energy particles in the Universe is one of the key issues of high-energy solar physics, space science, astrophysics, and particle astrophysics.
Siming Liu, Siming Liu, J. Randy Jokipii
doaj   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

open access: yesFEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass   +2 more
wiley   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Ionic fluxes of charged particles at cathode region

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2007
We analyze the disperse particles charging at cathode region by collisional and diffusive mechanisms. The dependence of charge quantity at nanoparticles on their sizes and characteristics of motion in the electrical field is defined.
V. B. Oparin   +2 more
doaj   +1 more source

Bound Orbits and Epicyclic Motions around Renormalization Group Improved Schwarzschild Black Holes

open access: yesUniverse, 2022
We study timelike particles’ bound orbits around renormalization group improved Schwarzschild black holes (RGISBHs), which originate from renormalization group improvement of the Einstein–Hilbert action by using the running Newton constant.
Hou-Yu Lin, Xue-Mei Deng
doaj   +1 more source

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