Spread of the Black Death in Europe 1347 1350

Black Death Europe 1347

Historical Aside on the Black Death and Plague in the 20th Century The fascination with the Black Death, the catastrophic plague pandemic that swept through Europe in the mid-14th century, has not abated with the passage of time. Albert Camus' The Plague, published in 1947, is one example, in a modern context. In the many accounts of the Black Death over the centuries, whether factual or romanticised, a vision has been conjured up of horrific carnage, wild debauchery, unbelievable acts of...

Background and Experimental Results

Bacteria Pattern Formation

There is an obvious case for studying bacteria. For example, bacteria are responsible for a large number of diseases and they are responsible for most of the recycling that takes place. Their use in other areas is clearly going to increase as our understanding of their complex biology becomes clearer. Here we are interested in how a global pattern in bacterial populations can arise from local interactions. Under a variety of experimental conditions numerous strains of bacteria aggregate to form...

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Figure 11.11. continued See the comment in parentheses in Figure 11.10. Parameter estimates are obtained from data on mid to high grade astrocytomas glioblastoma multiforme . High grade astrocytomas account for 50 of all astrocytomas, which in turn make up 50 of all primary brain tumours Alvord and Shaw 1991 . We use the Alvord and Shaw 1991 estimate of one week to 12 months as the doubling times for gliomas. So, for cell proliferation of a high grade astrocytoma, we take a growth rate of p...