In this note we study a class of 2× 2 Pólya-Eggenberger urn models, with ball transition matrix given by M = ( 0 −b c −d ) , for arbitrary parameters b, c ∈ N, assuming the balancing condition d = c+ b. This urn model serves as a stochastic model in biology describing cannibalistic behavior of populations. The special case b = c = 1 and d = 2 was studied by Pittel [16] using asymptotic approxim...

© 2006 FRILOT PARTRIDGE, LC WWW.FRILOTPARTRIDGE.COM 504.599.8000 The modern scientifi c thinking on Creutzfeldt-Jakob Disease (CJD) began with the study of the primitive Fore tribe (pronounced 4-a) in eastern New Guinea. There had long been a strange neurologic disease in the cannibalistic jungle tribe. Some of the Fore people, primarily the women and children, began to have diffi culty walking...

Natural selection is expected to leave distinctive signatures on patterns of neutral variation that are tightly linked to a site carrying an advantageous mutation. This notion is the basis for molecular population genetics approaches to the analysis of adaptations in the human genome. In principle, this is an attractive prospect; in practice, several complications and challenges make it difficu...

In descriptions of European travel narratives since the 16th century, representations African are indistinguishable from those other "savages" whose newly discovered lives both fascinate and repel. 18th even as allusions to New World cannibalism tended dissipate, image "good savage" developed, cannibalistic discourse on Africa continued expand. This work proposes observe how it emerges spreads ...

Overlap in the form of sexual signals such as pheromones raises the possibility of reproductive interference by invasive species on similar, yet naive native species. Here, we test the potential for reproductive interference through heterospecific mate attraction and subsequent predation of males by females of a sexually cannibalistic invasive praying mantis. Miomantis caffra is invasive in New...