Vast stretches of thinly settled and empty territories lie north of the main settled belt.
After the perturbation, the empty territories could be recolonized by individuals or groups from spatially close populations.
We calculated the means, standard deviations and 95% confidence intervals for prevalence, intra-group infection rate, inter-group infection rate, the number of external infectious contacts, the number of empty territories and the number of infected groups based on the final 50 years of the simulations.
But, actually, the main thing you are trying to do is wall off parts of empty territory on the board.
"There's no discussion, no opposition, no civil society, it's empty territory, so nothing will happen, nothing will change".
New rail links and good roads are seen by some Central Asians as a potential springboard for China's expansion even further west, into Kazakhstan's vast and largely empty territory, maybe 20-30 years from now.
The new arrivals in the British Isles would have found an empty territory, which they could have reached just by walking along the Atlantic coastline, since the English Channel and the Irish Sea were still land.
Among its victories was to destroy Mr Abu Shbak's home and kill six of his bodyguards.Moreover, the militia scored some unusually accurate hits on Israel; its improvised rockets, known as Qassams, which usually land harmlessly on empty territory, this week injured at least 20 people.
The new arrivals in the British Isles would have found an empty territory, which they could have reached just by walking along the Atlantic coastline, since there were still land bridges then across what are now English Channel and the Irish Sea.
We turned downstream and followed the River Lea away from the stadium and towards the empty territory of the Dome, squeezing between a dull canal and a stretch of high-tensile fencing, along a feral corridor of wild poppies and long grass.
This procedure allows us to simulate the genetic diversity of mitochondrial sequences that underwent an old spatial expansion, then passed through a bottleneck, corresponding to the reduction in size of viable habitat and finally through a more recent spatial expansion into an empty territory.
