scholarly journals Numerical determination of monopole scaling dimension in parity-invariant three-dimensional noncompact QED

2019 ◽  
Vol 100 (5) ◽  
Author(s):  
Nikhil Karthik ◽  
Rajamani Narayanan
Keyword(s):  
Three Dimensional ◽  
Numerical Determination ◽  
Scaling Dimension

Numerical Determination of Pseudobreathers of a Three-Dimensional Spherically Symmetric Wave Equation

2016 ◽  
Vol 12 (3) ◽  
Author(s):  
Janusz Karkowski
Keyword(s):  
Wave Equation ◽  
Three Dimensional ◽  
Spherically Symmetric ◽  
Numerical Determination ◽  
Pseudospectral Methods ◽  
Symmetric Wave ◽  
Long Time ◽  
Signum Function ◽  
Continuous Approximations

A numerical method for finding spherically symmetric pseudobreathers of a nonlinear wave equation is presented. The algorithm, based on pseudospectral methods, is applied to find quasi-periodic solutions with force terms being continuous approximations of the signum function. The obtained pseudobreathers slowly radiate energy and decay after some (usually long) time depending on the period that characterizes (unambiguously) the initial configuration.

Conformation of Ribosomes from Escherichia Coli

1974 ◽  
Vol 32 ◽  
pp. 210-211
Author(s):  
M. Boublik ◽  
W. Hellmann ◽  
F. Jenkins
Keyword(s):  
Binding Sites ◽  
Ribosomal Proteins ◽  
Fluorescent Dyes ◽  
Protein Biosynthesis ◽  
Three Dimensional ◽  
Spatial Arrangement ◽  
Dimensional Structure ◽  
Complete Understanding ◽  
And Function

The present knowledge of the three-dimensional structure of ribosomes is far too limited to enable a complete understanding of the various roles which ribosomes play in protein biosynthesis. The spatial arrangement of proteins and ribonuclec acids in ribosomes can be analysed in many ways. Determination of binding sites for individual proteins on ribonuclec acid and locations of the mutual positions of proteins on the ribosome using labeling with fluorescent dyes, cross-linking reagents, neutron-diffraction or antibodies against ribosomal proteins seem to be most successful approaches. Structure and function of ribosomes can be correlated be depleting the complete ribosomes of some proteins to the functionally inactive core and by subsequent partial reconstitution in order to regain active ribosomal particles.

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