Results 11 to 20 of about 168,635 (283)

Polarized Proton-Proton Bremsstrahlung [PDF]

open access: yesPhysical Review Letters, 1986
Abstract A proton-proton bremsstrahlung experiment recently carried out at TRIUMF with polarized protons gives results which disagree with the Soft Photon Approximation and agree with potential model calculations.
P. Kitching   +18 more
openaire   +2 more sources

Proton Radiobiology [PDF]

open access: yesCancers, 2015
In addition to the physical advantages (Bragg peak), the use of charged particles in cancer therapy can be associated with distinct biological effects compared to X-rays. While heavy ions (densely ionizing radiation) are known to have an energy- and charge-dependent increased Relative Biological Effectiveness (RBE), protons should not be very ...
Tommasino F., Durante M.
openaire   +4 more sources

The Proton-Proton Interaction [PDF]

open access: yesPhysical Review, 1950
This paper presents a phenomenological analysis of the proton-proton scattering observed at 32 and 340 Mev in terms of static nuclear potentials. Comparison of these results with the neutron-proton scattering at 40, 90, and 280 Mev analyzed previously indicates that nuclear forces are not charge independent. In particular, there is definite evidence in
Christian, R.S., Noyes, H.P.
openaire   +3 more sources

Diazanaphthalenes: A 13C NMR investigation on the site of protonation and pKa values [PDF]

open access: yes, 1976
The pH dependence of the 13C chemical shifts (δ) of the diazanaphthalenes has been recorded. From this dependence the pKa values have been determined using the Henderson-Hasselbach equation.
Meer, Douwe van der   +2 more
core   +2 more sources

Investigation of Structural Dynamics of Enzymes and Protonation States of Substrates Using Computational Tools. [PDF]

open access: yes, 2016
This review discusses the use of molecular modeling tools, together with existing experimental findings, to provide a complete atomic-level description of enzyme dynamics and function.
Chang, Chia-En A   +3 more
core   +2 more sources

Proton–proton physics in ALICE [PDF]

open access: yesJournal of Physics G: Nuclear and Particle Physics, 2007
4 pages, Quark Matter 2006 ...
Tapan K Nayak, the ALICE Collaboration
openaire   +2 more sources

Proton-proton Bremsstrahlung

open access: yesNuclear Physics B, 1967
Abstract We calculate proton-proton Bremsstrahlung cross sections using the Tabakin separable potentials to generate off-shell nucleon-nucleon t-matrix elements in low partial waves and off-shell one-pion-exchange amplitudes for the higher partial waves.
W.A. Pearce, W.A. Gale, I.M. Duck
openaire   +2 more sources

Push-Pull Effect of Terpyridine Substituted by Triphenylamine Motive—Impact of Viscosity, Polarity and Protonation on Molecular Optical Properties

open access: yesMolecules, 2022
The introduction of an electron-donating triphenylamine motive into a 2,2′,6′,2′′-terpyridine (terpy) moiety, a cornerstone molecular unit in coordination chemistry, opens new ways for a rational design of photophysical properties of organic and ...
Anna Maria Maroń   +4 more
doaj   +1 more source

Protonation and ring closure of stereoisomeric alpha-substituted cinnamic acids in superacidic media studied by 13C NMR spectroscopy and computations [PDF]

open access: yes, 1998
Five alpha-substituted cinnamic acids [(E)- and (Z)-2,3-diphenyl-, (E)- and (Z)-3-(2-methoxyphenyl)-2-phenyl- and (E)-2-(2-methoxyphenyl)-3-phenyl-propenoic acids] have been protonated in fluorosulfonic acid at -78 degrees C, Protonation of the ...
Burrichter, Arwed   +5 more
core   +1 more source

Protonation of maleic and fumaric acid in aqueous sulfuric acid solutions [PDF]

open access: yesJournal of the Serbian Chemical Society, 2000
The protonations of maleic and fumaric acid in an acidic medium (aqueous solutions of sulfuric acid) were followed spectrophotometrically at room temperature. The acid-base equilibria were characterised qualitatively and quantitatively.
ILINKA SPIREVSKA   +2 more
doaj   +3 more sources

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