scholarly journals Corrigendum: Electric Quadrupole Excitation of the First Excited State of 11B

1984 ◽  
Vol 37 (2) ◽  
pp. 239 ◽  
Author(s):  
MP Fewell ◽  
RH Spear ◽  
TH Zabel ◽  
AM Baxter

The correction to the value of B(E2; t - ~ t --) due to the effect of the ground-state quadrupole moment was applied with the wrong sign. Thus lines 6 and 7 of p. 507 should read ' ... and the ground-state quadrupole moment produces a decrease of 13%...' Consequently, the result of the experiment is B(E2; t - ~ t -) = 2�6�0�4 e2 fm" corresponding to 3�5 W.u. The conclusions of the paper are not affected.

1970 ◽  
Vol 151 (2) ◽  
pp. 273-281 ◽  
Author(s):  
H.S. Gertzman ◽  
D. Cline ◽  
H.E. Gove ◽  
P.M.S. Lesser ◽  
J.J. Schwartz

1983 ◽  
Vol 122 (1) ◽  
pp. 23-26 ◽  
Author(s):  
W.J. Vermeer ◽  
M.T. Esat ◽  
J.A. Kuehner ◽  
R.H. Spear ◽  
A.M. Baxter ◽  
...  

1987 ◽  
Vol 470 (2) ◽  
pp. 415-428 ◽  
Author(s):  
G.J. Gyapong ◽  
R.H. Spear ◽  
M.P. Fewell ◽  
A.M. Baxter ◽  
S.M. Burnett

1970 ◽  
Vol 48 (1) ◽  
pp. 35-45 ◽  
Author(s):  
O. Häusser ◽  
B. W. Hooton ◽  
D. Pelte ◽  
T. K. Alexander ◽  
H. C. Evans

The reorientation effect in Coulomb excitation with 62 MeV 35Cl projectiles was used to measure the static quadrupole moment of the first excited state in 24Mg. From a comparison of the inelastic scattering cross sections at CM scattering angles of 123.1° and 72.8°, a static quadrupole moment of Q = −0.243 ± 0.035 b was deduced. The E2 matrix element connecting the ground state and first excited state was also measured and corresponds to 20.3 ± 1.4 W.u. for the 2+ → 0+ transition. The results are compared with predictions of the rotational model.


1981 ◽  
Vol 362 (1) ◽  
pp. 227-240 ◽  
Author(s):  
M.T. Esat ◽  
M.P. Fewell ◽  
R.H. Spear ◽  
T.H. Zabel ◽  
A.M. Baxter ◽  
...  

1980 ◽  
Vol 33 (3) ◽  
pp. 505 ◽  
Author(s):  
MP Fewell ◽  
RH Spear ◽  
TH Zabel ◽  
AM Baxter

The Coulomb excitation of backscattered llB projectiles has been used to measure the reduced E2 transition probability B(E2; 3/2--+ 1/2-) between the 3/2- ground state and the 1/2- first excited state of llB. It is found that B(E2;3/2--+1/2-) = 2�1�0�4 e2 fm4, which agrees with shell model predictions but is a factor of 10 larger than the prediction of the core-excitation model.


1999 ◽  
Vol 451 (1-2) ◽  
pp. 11-18 ◽  
Author(s):  
H. Ogawa ◽  
K. Asahi ◽  
K. Sakai ◽  
A. Yoshimi ◽  
M. Tsuda ◽  
...  

2017 ◽  
Vol 474 (16) ◽  
pp. 2713-2731 ◽  
Author(s):  
Athinoula L. Petrou ◽  
Athina Terzidaki

From kinetic data (k, T) we calculated the thermodynamic parameters for various processes (nucleation, elongation, fibrillization, etc.) of proteinaceous diseases that are related to the β-amyloid protein (Alzheimer's), to tau protein (Alzheimer's, Pick's), to α-synuclein (Parkinson's), prion, amylin (type II diabetes), and to α-crystallin (cataract). Our calculations led to ΔG≠ values that vary in the range 92.8–127 kJ mol−1 at 310 K. A value of ∼10–30 kJ mol−1 is the activation energy for the diffusion of reactants, depending on the reaction and the medium. The energy needed for the excitation of O2 from the ground to the first excited state (1Δg, singlet oxygen) is equal to 92 kJ mol−1. So, the ΔG≠ is equal to the energy needed for the excitation of ground state oxygen to the singlet oxygen (1Δg first excited) state. The similarity of the ΔG≠ values is an indication that a common mechanism in the above disorders may be taking place. We attribute this common mechanism to the (same) role of the oxidative stress and specifically of singlet oxygen, (1Δg), to the above-mentioned processes: excitation of ground state oxygen to the singlet oxygen, 1Δg, state (92 kJ mol−1), and reaction of the empty π* orbital with high electron density regions of biomolecules (∼10–30 kJ mol−1 for their diffusion). The ΔG≠ for cases of heat-induced cell killing (cancer) lie also in the above range at 310 K. The present paper is a review and meta-analysis of literature data referring to neurodegenerative and other disorders.


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