Results 31 to 40 of about 496,793 (289)

(Mechano)synthesis of azomethine- and terpyridine-linked diketopyrrolopyrrole-based polymers

open access: yesChimica Techno Acta, 2023
Three efficient synthetic approaches towards new azomethine- and terpyridine-containing 2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione (diketopyrrolopyrrole, DPP) based polymers, such as P1 and P2, are reported.
Wahab K. A. Al-Ithawi   +12 more
doaj   +1 more source

Significant features of 8B scattering from 208Pb at 170.3 MeV [PDF]

open access: yes, 2013
The scattering of proton-halo nucleus 8B from 208Pb at 170.3 MeV is shown to reveal a distinctive pattern in the change in |SL| that is induced by coupling to breakup channels.
Mackintosh, R. S., Pang, D. Y.
core   +1 more source

Coupled-channels calculations of nonelastic cross sections using a density-functional structure model

open access: yes, 2010
A microscopic calculation of the reaction cross-section for nucleon-nucleus scattering has been performed by explicitly coupling the elastic channel to all particle-hole (p-h) excitation states in the target and to all one-nucleon pickup channels.
Dietrich, F. S.   +6 more
core   +1 more source

Mutual neutralization in collisions of H+ with Cl. [PDF]

open access: yes, 2019
The cross section and final state distribution for mutual neutralization in collisions of H+ with Cl- have been calculated using an ab initio quantum mechanical approach.
Hedvall, Patrik   +3 more
core   +1 more source

Palladium-catalyzed C–N and C–O bond formation of N-substituted 4-bromo-7-azaindoles with amides, amines, amino acid esters and phenols

open access: yesBeilstein Journal of Organic Chemistry, 2012
Simple and efficient procedures for palladium-catalyzed cross-coupling reactions of N-substituted 4-bromo-7-azaindole (1H-pyrrole[2,3-b]pyridine), with amides, amines, amino acid esters and phenols through C–N and C–O bond formation have been developed ...
Rajendra Surasani   +3 more
doaj   +1 more source

$\pi$NN coupling and two-pion photoproduction on the nucleon

open access: yes, 2002
Effects of non-resonant photoproductions arising from two different $\pi NN$ couplings are investigated in the $\gamma N\to\pi\pi N$ reaction. We find that the pseudoscalar (PS) $\pi NN$ coupling is generally preferable to the pseudovector (PV) $\pi NN ...
A. Braghieri   +24 more
core   +1 more source

PEG-400 catalysed selective C-Se cross dehydrogenative coupling: An ultrasonication‐assisted green strategy

open access: yesResults in Chemistry, 2023
Metal free selective C-Se cross dehydrogenative coupling strategy has been established. The disclosed protocol unites structurally complex molecular hybrids with phenylselenol to sp2 carbon with complete regioselectivity to foster novel phenylseleno ...
Mahpara Qadir   +2 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Reaction cross-section predictions for nucleon induced reactions

open access: yes, 2010
A microscopic calculation of the optical potential for nucleon-nucleus scattering has been performed by explicitly coupling the elastic channel to all the particle-hole (p-h) excitation states in the target and to all relevant pickup channels.
F S Dietrich   +8 more
core   +2 more sources

Role of break-up processes in fusion enhancement of drip-line nuclei at energies below the Coulomb barrier [PDF]

open access: yes, 1999
We carry out realistic coupled-channels calculations for $^{11}$Be + $^{208}$Pb reaction in order to discuss the effects of break-up of the projectile nucleus on sub-barrier fusion.
A. B. Balantekin   +25 more
core   +3 more sources

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