We compare and contrast three different perturbative expansions for the quartic anharmonic oscillator wavefunction and apply a modified Borel summation technique to determine the energy eigenvalues. In the first two expansions this provides the energy eigenvalues directly however in the third method we tune the wavefunctions to achieve the correct large x behaviour as first illustrated in [1]. ...

This thesis evaluates the utility of a geochemical technique for the investigation of paiaeoenvironmental change in south west England. The method, EDMA (Energy Dispersive X-ray Micro Analysis), is a rapid, non-destructive analysis tool, capable of detecting a large range of geochemical elements. This research examines the most appropriate method of sample preparation for organic soils and peat...

We report the long-term outcome of a modified second-generation cementing technique for fixation of the acetabular component of total hip replacement. An earlier report has shown the superiority of this technique assessed by improved survival compared with first-generation cementing. The acetabular preparation involved reaming only to the subchondral plate, followed by impaction of the bone in ...

L ittle evokes a sense of wonder about the past like moments frozen in time: the contorted bodies of Pompeii’s horrified citizens fixed in their final poses, the footprints of an ancient hominin family cemented on an African savanna, the tracks of a Jurassic predator closing in on unsuspecting prey along a muddy riverbank, or tree stumps from an ancient Carboniferous rainforest buried in place ...

North European Russia is one of the most heavily paludified regions world. Mires provide crucial biosphere functions, contain plant resources and enormous peat reserves, hold potential as land for forestry agriculture. They are developed used in various economic activities. have been actively studied since early 20th century; integrated studies mires Karelia carried out by Mire Ecosystems Labor...