Nuclear Incompressibility and the Asymmetry Term: Implications for Astrophysics and Physics with Exotic Nuclei

2010 ◽  
Author(s):  
M. Fujiwara ◽  
Hajime Susa ◽  
Marcel Arnould ◽  
Sydney Gales ◽  
Tohru Motobayashi ◽  
...  
Keyword(s):  
Exotic Nuclei ◽  
The Asymmetry ◽  
Nuclear Incompressibility

scholarly journals Giant monopole resonance in even-A Cd isotopes, the asymmetry term in nuclear incompressibility, and the “softness” of Sn and Cd nuclei

2012 ◽  
Vol 718 (2) ◽  
pp. 447-450 ◽  
Author(s):  
D. Patel ◽  
U. Garg ◽  
M. Fujiwara ◽  
H. Akimune ◽  
G.P.A. Berg ◽  
...  
Keyword(s):  
Giant Monopole Resonance ◽  
Cd Isotopes ◽  
The Asymmetry ◽  
Nuclear Incompressibility

scholarly journals Compression-mode resonances in the calcium isotopes and implications for the asymmetry term in nuclear incompressibility

2020 ◽  
Vol 801 ◽  
pp. 135185 ◽  
Author(s):  
K.B. Howard ◽  
U. Garg ◽  
M. Itoh ◽  
H. Akimune ◽  
S. Bagchi ◽  
...  
Keyword(s):  
Calcium Isotopes ◽  
The Asymmetry ◽  
Nuclear Incompressibility

EFFECT OF CELLULAR MEMBRANE RESISTIVITY INHOMOGENEITY ON THE THERMAL NOISE-LIMIT

2015 ◽  
Vol 11 (3) ◽  
pp. 3171-3183
Author(s):  
Gyula Vincze
Keyword(s):  
Field Strength ◽  
Thermal Noise ◽  
Cellular Membrane ◽  
Thermal Limit ◽  
Low Frequencies ◽  
Membrane Resistivity ◽  
Noise Limit ◽  
The Asymmetry ◽  
Characteristic Field

Our objective is to generalize the Weaver-Astumian (WA) and Kaune (KA) models of thermal noise limit to the case ofcellular membrane resistivity asymmetry. The asymmetry of resistivity causes different effects in the two models. In the KAmodel, asymmetry decreases the characteristic field strength of the thermal limit over and increases it below the breakingfrequency (10  m), while asymmetry decreases the spectral field strength of the thermal noise limit at all frequencies.We show that asymmetry does not change the character of the models, showing the absence of thermal noise limit at highand low frequencies in WA and KA models, respectively.

Computational Investigation of the Asymmetry in Photosynthetic Reaction Center Models from First Principles

2020 ◽  
Author(s):  
Denis Artiukhin ◽  
Patrick Eschenbach ◽  
Johannes Neugebauer
Keyword(s):  
Spin Density ◽  
Reaction Center ◽  
Density Functional ◽  
Photosynthetic Reaction Center ◽  
Chem Phys ◽  
Molecular Structures ◽  
Error Characteristic ◽  
Molecular Systems ◽  
Density Distributions ◽  
The Asymmetry

We present a computational analysis of the asymmetry in reaction center models of photosystem I, photosystem II, and bacteria from <i>Synechococcus elongatus</i>, <i>Thermococcus vulcanus</i>, and <i>Rhodobacter sphaeroides</i>, respectively. The recently developed FDE-diab methodology [J. Chem. Phys., 148 (2018), 214104] allowed us to effectively avoid the spin-density overdelocalization error characteristic for standard Kohn–Sham Density Functional Theory and to reliably calculate spin-density distributions and electronic couplings for a number of molecular systems ranging from dimeric models in vacuum to large protein including up to about 2000 atoms. The calculated spin densities showed a good agreement with available experimental results and were used to validate reaction center models reported in the literature. We demonstrated that the applied theoretical approach is very sensitive to changes in molecular structures and relative orientation of molecules. This makes FDE-diab a valuable tool for electronic structure calculations of large photosynthetic models effectively complementing the existing experimental techniques.

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