A skew Laurent polynomial ring S = R[x;α] is reversible if it has a reversing automorphism, that is, an automorphism θ of period 2 that transposes x and x and restricts to an automorphism γ of R with γ = γ. We study invariants for reversing automorphisms and apply our methods to determine the rings of invariants of reversing automorphisms of the two most familiar examples of simple skew Laurent...

The brain rennin-angiotensin system (RAS) has an important role in the regulation of cardiovascular function. The aim of the present study was to determine the effect of reversible inactivation of the central amygdaloid nucleus (Ace) in normotensive rats and rats with renal hypertension (2K-1C). Two groups of normotensive rats were selected for this study. In one group, hypertension was induced...

The brain rennin-angiotensin system (RAS) has an important role in the regulation of cardiovascular function. The aim of the present study was to determine the effect of reversible inactivation of the central amygdaloid nucleus (Ace) in normotensive rats and rats with renal hypertension (2K-1C). Two groups of normotensive rats were selected for this study. In one group, hypertension was induced...

In the mol-ecule of the title compound, C(16)H(16)N(+)·CF(3)SO(3) (-), the central ring adopts a flattened-boat conformation, and the two aromatic rings are oriented at a dihedral angle of 3.94 (2)°. In the crystal structure, weak inter-molecular hydrogen bonds link the mol-ecules. There are π-π contacts between the aromatic rings and the central ring and one of the aromatic rings [centroid-cen...

By using some finite local rings, we construct some new partial difference sets and relative difference sets on ^-groups where p is any prime. When p = 2, some of the partial difference sets constructed are reversible difference sets which include Dillon's difference sets.