Results 51 to 60 of about 2,070,794 (175)
Does a glycine sodium nitrite crystal exist? [PDF]
arXiv, 2015 The glycine sodium nitrite crystal reported by Khandpekar and Pati in the paper entitled, Synthesis and characterisation of glycine sodium nitrite crystals having non linear optical behaviour, Opt Commun 285, 2012 288-293 is actually gamma-glycine. In addition, we show that glycine barium ammonium nitrate, glycine sodium zinc sulfate, glycine barium ...
arxiv
Structural and dynamical properties of sodium silicate melts: An investigation by molecular dynamics computer simulation [PDF]
Chem. Geol. 174, 87-101 (2001), 1999 We present the results of large scale computer simulations in which we investigate the static and dynamic properties of sodium disilicate and sodium trisilicate melts. We study in detail the static properties of these systems, namely the coordination numbers, the temperature dependence of the Q^(n) species and the static structure factor, and compare ...
arxiv
Sodium: a charge-transfer insulator at high pressures [PDF]
, 2010 By means of first-principles methods we analyze the optical response of transparent dense sodium as a function of applied pressure. We discover an unusual kind of charge-transfer exciton that proceeds from the interstitial distribution of valence electrons repelled away from the ionic cores by the Coulomb interaction and the Pauli repulsion.
arxiv +1 more source
Why the globular cluster NGC 6752 contains no sodium-rich second-generation AGB star [PDF]
, 2013 (Abridged) Globular clusters host multiple stellar populations showing different sodium enrichments. These various populations can be observed along the main sequence, red giant and horizontal branch phases. Recently it was shown, however, that at least in the globular cluster NGC 6752, no sodium-rich stars are observed along the early asymptotic giant
arxiv +1 more source
Magnetometry using fluorescence of sodium vapor [PDF]
, 2017 Magnetic resonance of sodium fluorescence is studied with varying laser intensity, duty cycle, and field strength. A magnetometer based on sodium vapor cell filled with He buffer gas is demonstrated, which uses a single amplitude-modulated laser beam.
arxiv +1 more source
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2017 BackgroundLoop diuretics are highly natriuretic but their short duration of action permits postdiuretic sodium retention, which limits salt loss unless dietary salt is severely restricted. We tested the hypothesis that a more prolonged duration of action
Salim Shah +6 more
doaj +1 more source
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019 Background In China, high sodium and low potassium intakes result in elevated blood pressure, a major cause of cardiovascular disease, yet the intake estimates lack accuracy and nutritional strategies remain limited.
Monique Tan +3 more
doaj +1 more source
Mesosphere Sodium Column Density and the Sodium Laser Guide Star Brightness [PDF]
arXiv, 1997 The first time simultaneous measurements of sodium column density and the absolute flux from a sodium laser guide star, created by a monochromatic 3 W cw laser, tuned to the peak of the sodium D2 hyperfine structure, were conducted at the MMT and CFA 60 inch telescope in 1997.
arxiv
Dipolar relaxation of cold sodium atoms in a magnetic field [PDF]
arXiv, 2002 A quantum mechanical close coupling theory of spin relaxation in the stretched hyperfine level of sodium is presented. We calculate the dipolar relaxation rate of magnetically trapped cold sodium atoms in the magnetic field. The influence of shape resonances and the anisotropy of the dipolar interaction on the collision dynamics are explored.
arxiv
A New Technique for the Use of Sodium Azide (Hydrazoic Acid) as an Inhibitive Agent [PDF]
, 1959 V.F. Gerencser, R. H. Weaver
openalex +1 more source