*Rěc', *slovo, *besěda: Etymology and semantic prehistory

Etymology, history, and artifacts

Elliptic really does have a connection with literal geometric ellipses, removed by a few steps. Integrals expressing arc length of ellipses are less elementary than integrals for inverse trigonometric functions, and were named elliptic because of this. Abel and Jacobi discovered in 1827 that the inverse functions are doubly periodic (explained below). This chain of events caused these functions...

Medical Etymology

Etymology of Cholera

1. Gray KJ, Kafulafula G, Matemba M, Kamdolozi M, Membe G, French N, et al. Streptococcus and HIV infection in pregnant women, Malawi, 2008–2010. Emerg Infect Dis. 2011;17:1932–5. 2. Epalza C, Goetghebuer T, Hainaut M, Prayez F, Barlow P, Dediste A, et al. High incidence of invasive group B streptococcal infections in HIV-exposed uninfected infants. Pediatrics. 2010;126:e631–8. http://dx.doi.or...

[Cancer etymology and its historical curious course].

The first cancer descriptions in history are discussed according to recent findings and their interpretation, which show it as a group of unknown diseases until the 18th century, when it started to increase to actual levels. Medical literature shows a variety of what were considered cancer lesions, which are actually different lesions. This is partly due to an etymological misunderstanding of t...

Apes, lice and prehistory

Although most epidemic human infectious diseases are caused by recently introduced pathogens, cospeciation of parasite and host is commonplace for endemic infections. Occasional host infidelity, however, provides the endemic parasite with an opportunity to survive the potential extinction of its host. Such infidelity may account for the survival of certain types of human lice, and it is current...