in this note‎, ‎we obtain some singular values inequalities for positive semidefinite matrices by using block matrix technique‎. ‎our results are similar to some inequalities shown by bhatia and kittaneh in [linear algebra appl‎. ‎308 (2000) 203-211] and [linear algebra appl‎. ‎428 (2008) 2177-2191]‎.

positive political metatheory based on the naturalistic ontology concerning unity of method in science, implies reducing social and political issues to naturalistic one and study the emperical regularities in a similar methodology. therfore, behaviors political fields conciderd to be subjected to a causal order that implies explanation and prediction according to deductive structure of scientif...