4 documents found, page 1 of 1
The Clinical Laboratory Genetics profession in Portugal
Ramos, Lina; Jorge, Paula; Marques, Bárbara; Avila, Madalena; Rendeiro, Paula; Quelhas, Maria Dulce; Melo, Joana B.; Marques Carreira, Isabel
On the DNA of eleven mammals
Tenreiro Machado, J.; C. Costa, António; Quelhas, Maria DulceThis paper studies the DNA code of eleven mammals in the perspective of fractional dynamics. The application of Fourier transform and power law trendlines leads to a categorical representation of species and chromosomes. The DNA information reveals long range memory characteristics.
Analysis and visualization of chromosome information
Tenreiro Machado, J.A.; C. Costa, António; Quelhas, Maria DulceThis paper analyzes the DNA code of several species in the perspective of information content. For that purpose several concepts and mathematical tools are selected towards establishing a quantitative method without a priori distorting the alphabet represented by the sequence of DNA bases. The synergies of associating Gray code, histogram characterization and multidimensional scaling visualization lead to a col...
DNA code analysis with fractional calculus
Tenreiro Machado, J. A.; Costa, António C.; Quelhas, Maria DulceThis paper addresses the DNA code analysis in the perspective of dynamics and fractional calculus. Several mathematical tools are selected to establish a quantitative method without distorting the alphabet represented by the sequence of DNA bases. The association of Gray code, Fourier transform and Fractional calculus leads to a categorical representation of species and chromosomes.