Environmentalists are worried that the UK might slither back from its international commitment to create an ecologically coherent network of sites.

BBC: Cash shortage stretches to sea bed

Dealing with these large chains reduced distribution costs, facilitated efficient ordering practices, allowed the creation of set title lists, and created a coherent network for book signings and literary events that promoted publishers and sellers joint interests.

FORBES: Book Publishers Challenged by Distribution Problems

The ultimate aim is to create an "ecologically coherent" network of protected areas around all UK coasts, safeguarding important natural habitats while allowing other activities such as recreational angling, commercial fishing, surfing and marine energy to go ahead.

BBC: Marine protection bids unveiled

The Doppler effect (familiar from the changing pitch of a passing police siren) gives away the velocities of these particles and Dr Haller's computers are able to crunch the resulting data in the light of Lagrange's theories and work out the network of coherent structures that is causing their movements and the pattern of updraughts and downdraughts that should result.

ECONOMIST: Lagrangian coherent structures

However, Hewlett Packard says it is taking share from Cisco, Huawei says it has advanced products for less, and Juniper claims its own coherent, next-generation network.

FORBES: "The Next Cisco's" Earnings Challenge