Results 71 to 80 of about 720,850 (319)

Very High Energy Gamma-Rays from Binary Systems [PDF]

open access: yes, 2010
This thesis presents a study of the very high energy (VHE) gamma-ray emission from X-ray binary systems using the H.E.S.S. imaging atmospheric Cherenkov array.
DICKINSON, HUGH,JOHN   +1 more
core  

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Energy level alignment and site-selective adsorption of large organic molecules on noble metal surfaces [PDF]

open access: yes, 2006
In recent two decades, there has been a large interest in organic molecules on metallic as well as insulating substrates. This interest is caused by the need to understand fundamental properties of large organic molecules on solid surfaces at the level
Alkauskas, Audrius
core   +1 more source

Shaping the future of radiotherapy: the role of electron beams and flash techniques

open access: yesRUDN Journal of Medicine
Relevance. Radiation therapy (RT) remains a cornerstone of oncology, offering targeted treatment for various cancers. With its roots tracing back to the discovery of X-rays by Wilhelm Röntgen and radium research by Marie Curie, RT has evolved into a ...
Mikhail A. Parshenkov   +8 more
doaj   +1 more source

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

open access: yesPhysical 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   +6 more
doaj   +1 more source

Time-focusing time-of-flight, a new method to turn a MAC-E-filter into a quasi-differential spectrometer

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
Spectrometers based on the magnetic adiabatic collimation followed by an electrostatic filter (MAC-E-filter) principle combine high angular acceptance with an excellent energy resolution.
A. Fulst   +4 more
doaj   +1 more source

Mapping travelling convection vortex events with respect to energetic particle boundaries [PDF]

open access: yesAnnales Geophysicae, 1998
Thirteen events of high-latitude ionospheric travelling convection vortices during very quiet conditions were identified in the Greenland magnetometer data during 1990 and 1991.
T. Moretto, A. Yahnin
doaj   +1 more source

The challenge of ionisation chamber dosimetry in ultra-short pulsed high dose-rate Very High Energy Electron beams

open access: yesScientific Reports, 2020
High dose-rate radiotherapy, known as FLASH, has been shown to increase the differential response between healthy and tumour tissue. Moreover, Very High Energy Electrons (VHEEs) provide more favourable dose distributions than conventional radiotherapy ...
M. McManus   +9 more
semanticscholar   +1 more source

Biophysical approaches for studying viral entry

open access: yesFEBS 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

Detailed investigation of the low energy secondary electron yield of technical Cu and its relevance for the LHC

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2015
The detailed study of the low energy secondary electron yield (LE-SEY) of technical Cu for low electron energies (from 0 to 20 eV) is very important for electron cloud build up in high intensity accelerators and in many other fields of research ...
R. Cimino   +5 more
doaj   +1 more source

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