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Article
Open AccessAcceleration of a trailing positron bunch in a plasma wakefield accelerator
High gradients of energy gain and high energy efficiency are necessary parameters for compact, cost-efficient and high-energy particle colliders. Plasma Wakefield Accelerators (PWFA) offer both, making them at...
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Article
Open AccessSelf-map** the longitudinal field structure of a nonlinear plasma accelerator cavity
The preservation of emittance of the accelerating beam is the next challenge for plasma-based accelerators envisioned for future light sources and colliders. The field structure of a highly nonlinear plasma wa...
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Article
Open AccessHigh-field plasma acceleration in a high-ionization-potential gas
Plasma accelerators driven by particle beams are a very promising future accelerator technology as they can sustain high accelerating fields over long distances with high energy efficiency. They rely on the ex...
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Article
Multi-gigaelectronvolt acceleration of positrons in a self-loaded plasma wakefield
A particle accelerator that is two orders of magnitude more efficient than conventional radio-frequency accelerators is described in which positrons (rather than electrons) at the front of a bunch transfer the...
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Article
High-efficiency acceleration of an electron beam in a plasma wakefield accelerator
To develop plasma wakefield acceleration into a compact and affordable replacement for conventional accelerators, beams of charged particles must be accelerated at high efficiency in a high electric field; her...
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Article
Open AccessThe histone variant MacroH2A regulates Ca2+ influx through TRPC3 and TRPC6 channels
The histone variant macroH2A replaces canonical H2A in the designated region of chromatin where its incorporation has the potential to establish a functionally distinct chromatin domain. The transient receptor...
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Article
Cell-penetrating H4 tail peptides potentiate p53-mediated transactivation via inhibition of G9a and HDAC1
Histone acetylation has a central role in establishing an active chromatin environment. The functional contribution of histone acetylation to chromatin transcription is accomplished by a dominant action of his...
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Article
Functional interplay between p53 acetylation and H1.2 phosphorylation in p53-regulated transcription
Linker histone H1.2 has been shown to suppress p53-dependent transcription through the modulation of chromatin remodeling; however, little is known about the mechanisms governing the antagonistic effects of H1...
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Article
Inverse Radiation Problem for Determination of Optical Constants of Fly-Ash Particles
In this paper, a technique for determining the optical constants of fly-ash particles from spectral transmittance measurements is presented. Combined with the precise Mie theory and the Kramers–Kronig (KK) rel...
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Article
Butyltin Compounds Distribution in the Coastal Waters of Bohai Bay, People’s Republic of China
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Chapter and Conference Paper
Einfluss von Hepatic Stimulator Substance (HSS) auf das Proliferationspotential von humanen Leberzellen
Recombinant hepatic stimulator substance (rHSS) was expressed in E. coli by using a bacterial expression vector, which fused a 6 histidin-tag at the N-terminus of rHSS. Protein isolation and purification was perf...
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Article
Current efficiency for soybean oil hydrogenation in a solid polymer electrolyte reactor
Soybean oil has been hydrogenated electrocatalytically in a solid polymer electrolyte (SPE) reactor, similar to that in H2/O2 fuel cells, with water as the anode feed and source of hydrogen. The key component ...
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Article
Electrocatalytic hydrogenation of soybean oil in a radial flow-through Raney nickel powder reactor
Soybean oil has been hydrogenated electrocatalytically on Raney nickel powder catalyst at atmospheric pressure and moderate temperatures in a novel undivided packed bed radial flow-through reactor. The reactor...
