Results 41 to 50 of about 747,734 (313)
The Uppsala Electron-Density Server [PDF]
Acta Crystallographica Section D Biological Crystallography, 2004 The Uppsala Electron Density Server (EDS; http://eds.bmc.uu.se/) is a web-based facility that provides access to electron-density maps and statistics concerning the fit of crystal structures and their maps. Maps are available for approximately 87% of the crystallographic Protein Data Bank (PDB) entries for which structure factors have been deposited ...
Gerard J, Kleywegt +5 more
openaire +2 more sources
The electron density in the plane of the Galaxy [PDF]
Symposium - International Astronomical Union, 1985 Pulsars provide probably the best probes of electron density in the plane of the Galaxy. The dispersion measure, the path integral of electron density along the line of sight from the pulsar to Earth, ∫ neds, is directly measurable from multi-frequency pulse-timing observations.
J. M. Weisberg +2 more
openaire +1 more source
Shock-wave-based density down ramp for electron injection
Physical Review Special Topics. Accelerators and Beams, 2012 We demonstrate a sharp density transition for electron injection in laser wakefield acceleration through numerical study. This density transition is generated by a detached shock wave induced by a cylinder inserted into a supersonic helium gas flow. In a
Chunmei Wang +3 more
doaj +1 more source
Pseudopotentials from electron density [PDF]
Physical Review A, 1996 A method is introduced that allows the construction of pseudopotentials in the density-functional theory. This method is based on a procedure worked out by one of the authors [J. Phys. B 26, 43 (1993); Philos. Mag. B 69, 779 (1994)] for determining Kohn-Sham potentials, one-electron orbitals, and energies from the electron density.
, Nagy, , Andrejkovics
openaire +2 more sources
Study on Electron Density Anomalies Possibly Related to Earthquakes Based on CSES Observations
Remote Sensing, 2023 This research examines the correlation between seismic activity and variations in ionospheric electron density (Ne) using the data from the Langmuir probe (LAP) onboard the China Seismo-Electromagnetic Satellite (CSES) during nighttime.
Chengcheng Han +8 more
doaj +1 more source
Ionospheric S4 Scintillations from GNSS Radio Occultation (RO) at Slant Path
Remote Sensing, 2020 Ionospheric scintillation can significantly degrade the performance and the usability of space-based communication and navigation signals. Characterization and prediction of ionospheric scintillation can be made from the Global Navigation Satellite ...
Dong L. Wu
doaj +1 more source
Molecules, 2022 Vitamins D are a group of fat-soluble secosteroids which play a regulatory role in the functioning of most cells. Rational design of new vitamin D analogs, of increased therapeutic potency and lowered calcemic side effects, requires high-resolution ...
Monika Wanat +3 more
doaj +1 more source
Effect of free valence on the electronic structure of n-alcohol radicals
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2023 The paper presents the results of a study of the effect of free valence (when a hydrogen atom is separated) on the electronic structure of n-alcohol radicals by the example of radicals of n-heptanol derivatives (C●H2-(CH2)6OH, CH3-C●H-(CH2)5OH, C2H5-C●H-(
V.V. Turovtsev +3 more
doaj +1 more source
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2023 Within the «quantum theory of atoms in molecules» the charge q and volume V of topological atoms A and atomic groups R of fluorinated molecules of ethanes C2HmFk, where 0 ≤ m, k ≤ 6 and m+k = 6 and propanes C3HmFk, where 0 ≤ m, k ≤ 8, m+k = 8, has been
A.V. Kotomkin, Yu.D. Orlov
doaj +1 more source