Results 61 to 70 of about 130,057 (295)

Physics case of the very high energy electron-proton collider, VHEeP [PDF]

Proceedings of XXIV International Workshop on Deep-Inelastic Scattering and Related Subjects — PoS(DIS2016), 2016
The possibility of a very high energy electron-proton (VHEeP) collider with a centre-of-mass energy of 9 TeV has been presented at previous workshops. These proceedings briefly summarise the VHEeP concept, which was recently published, and developments since then, as well as future directions.
Matthew Wing, Allen Christopher Caldwell
openaire   +1 more source

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Secondary-electron emission from hydrogen-terminated diamond: Experiments and model

Physical Review Special Topics. Accelerators and Beams, 2011
A hydrogen-terminated diamond is a proven efficient electron emitter that can support emission of high average current. Several factors dictate the amplifier’s gain: the number of secondary electrons created at their point of entry into the diamond, the ...
Erdong Wang, Ilan Ben-Zvi, Triveni Rao, D. A. Dimitrov, Xiangyun Chang, Qiong Wu, Tianmu Xin   +6 more
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Physics from Time Variability of the VHE Blazar PKS 2155-304 [PDF]

, 2010
Blazars are the principal extragalactic sources of very high energy gamma-ray emission in the Universe. These objects constitute a sub-class of Active Galactic Nuclei whose emission is dominated by Doppler boosted non-thermal radiation from plasma ...
BARRES-DE-ALMEIDA, ULISSES
core  

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

High Power Laser-Grating Interaction [PDF]

, 2011
A system which presents a periodic optical structure is usually referred to as a photonic structure, for its light manipulation capabilities. The most simple one dimensional photonic structure that can be made of metallic material is a diffraction ...
LUPETTI, MATTIA
core  

Laboratory astrophysics : investigation of planetary and astrophysical maser emission [PDF]

, 2013
This paper describes a model for cyclotron maser emission applicable to planetary auroral radio emission, the stars UV Ceti and CU Virginus, blazar jets and astrophysical shocks.
Ronald K, Phelps, A.D.R., Phelps, Alan, Kellett BJ, McConville SL, Phelps ADR, Speirs DC, Ronald, Kevin, McConville, S.L., Cross, Adrian, Cairns RA, Speirs, D.C., Cairns, R Alan, Cross, A.W., Cross AW, Kellett, Barry, McConville, Sandra, Cairns, R.A., Bingham, Robert, Vorgul I, Vorgul, Irena, Kellett, B.J., Ronald, K., Bingham R, Spiers DC, Vorgul, I., Speirs, David, Bingham, R.   +27 more
core   +1 more source

Proton Synchrotron Origin of the Very-high-energy Emission of GRB 190114C

The Astrophysical Journal, 2023
We consider here a proton-synchrotron model to explain the MAGIC observation of GRB 190114C afterglow in the energy band of 0.2–1 TeV, while the X-ray spectra are explained by electron-synchrotron emission.
Hebzibha Isravel, Asaf Pe’er, Damien Bégué   +2 more
doaj   +1 more source

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

FEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez, Mikael Oliveberg, Peter Brzezinski   +2 more
wiley   +1 more source