'REX MAGNUS.'

Magnus Jiborn

A classical problem in political theory is how to explain unpopular and oppressive minority rule. How can a small minority manage to dominate a much larger population against its will? How come the oppressed majority does not revolt? Two rival approaches can be distinguished: the coordination theory, according to which the power of the minority rests on coordinated action among the minority and...

Rex Risser

In 1970 Abelson and Rabstein (1) isolated a variant of Moloney leukemia virus from a nonthymic l y m p h o m a of a BALB/c mouse. Subsequent studies indicated that this virus, now termed Abelson murine leukemia virus (MuLV-A), 1 induces a malignant disease of primitive bone marrow-derived lymphocytes (2-5). Under certain conditions, M u L V A also induces tumors of highly differentiated B cells...

Cannibalism in Tyrannosaurus rex

BACKGROUND Tyrannosaurus rex was one of the largest terrestrial carnivores of all time, and consequently its ecology and diet have been the focus of much discussion. However, there is little direct evidence of diet or feeding habits in this species. METHODOLOGY/PRINCIPAL FINDINGS Examination of museum collections has revealed four specimens of Tyrannosaurus rex that bear tooth marks made by l...

Magnus expansions and beyond

In this brief review we describe the coming of age of Magnus expansions as an asymptotic and numerical tool in the investigation of linear differential equations in a Lie-group and homogeneous-space setting. Special attention is afforded to the many connections between modern theory of geometric numerical integration and other parts of mathematics: from abstract algebra to differential geometry...

Peggy Magnus Burnett