Results 61 to 70 of about 3,434,853 (290)

Numerical simulation of the radiation field parameters of different composite anode targets

Fushe yanjiu yu fushe gongyi xuebao, 2023
Bremsstrahlung radiation can produce pulsed X-ray, and the energy spectra and conversion efficiencies of X-ray produced by such radiation are related to the electron beam energy, target material, and structure of this material.
LI Jinxi, WU Wei, CHENG Yinhui, GUO Jinghai   +3 more
doaj   +1 more source

Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network

FEBS Letters, EarlyView.
Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley   +1 more source

Collective Ratchet Transport Generated by Particle Crowding under Asymmetric Sawtooth‐Shaped Static Potential

Advanced Intelligent Systems, 2020
Herein, the ratchet transport of particles under static asymmetric potential with periodicity is investigated. Ratchet transport garners considerable attention due to its potential for application in smart transport techniques on a micrometer scale.
Masayuki Hayakawa, Yusuke Kishino, Masahiro Takinoue   +2 more
doaj   +1 more source

Particle Transport Processes [PDF]

International Astronomical Union Colloquium, 1993
AbstractThe effect of gravitational settling and radiation driven diffusion on the evolution of stars near the main sequence is reviewed. New simplified formulae for calculating diffusion are proposed that improve on previous such formulae. The reliability of available diffusion coefficients is discussed and areas where further work is needed are ...
Georges Michaud, C.R. Proffitt
openaire   +1 more source

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

FEBS 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, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

TRANSPORT PARTICLES

Einstein's formula for the mass of a moving body assumes the existence of four types of bodies: two types with real values of mass at a speed less than the speed of light and two with different signs and an imaginary value of mass (the speed is greater than the speed of light).
Polyanskaya A., Parfentyeva N., Parfentyev N.   +2 more
openaire   +2 more sources

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Electron Scattering, Transport and Energization by Alfvénic Turbulence in Earth's Outer Radiation Belt

Geophysical Research Letters, 2023
The transport of energetic electrons immersed in Alfvénic turbulence in Earth's outer radiation belt is explored. It is shown how electrons subject to the action of an empirically derived 3‐D spectrum of Alfvénic field fluctuations experience rapid ...
C. C. Chaston
doaj   +1 more source

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

FEBS 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, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source