The electron paramagnetic resonance(EPR) parameters and the hyperfine structure constants Ai for the substitutional V4++ centers in the rutile-type hosts MO2(M=Ti,Ge,Sn) are investigated by using the perturbation formulas for a 3d1 ion in distorted octahedral,based on the cluster approach.

Comparison of NDV Specific IgA Antibodies Titre from La Sota and V4 Vaccine Immunized Chickens and F48E9 Challenged Immunized Chickens;

Effect of NDV La Sota and V4 Strains on Chicken T Cell Subpopulations and Comparison of Immunodominance Epitopes of Their F Proteins;

Research on some characteristics of Newcastle disease virus V4 strain.;

Dynamic Study on Pathologic Injury of Newcastle Disease V4 Strain in Chickens;

According to prediction of B cell-epitopes on F protein of NDV La Sota and V4 vaccine strain,we identified and compared the antigen epitopes of La Sota and V4 strain.

The optical absorption bands and EPR parameters of the tetragonal compounds formed in the extractions of V4++ by tri-n-octylamine(R3N,TOA) and tri-n-octylphosphine(R3PO,TOPO) from hydrochlorine acid solutions are calculated by using the diagonalizing complete energy matrix method and the perturbation method.