Potential Role of a Phenolic Acid in the Uremic Syndrome

The abstract for this thesis is unavailable at the moment

D-Brane Dynamics and NS5 Rings

We consider the classical motion of a probe D-brane moving in the background geometry of a ring of NS5 branes, assuming that the latter are non-dynamical. We analyse the solutions to the Dirac-Born-Infield (DBI) action governing the approximate dynamics of the system. In the near horizon (throat) approximation we find several exact solutions for the probe brane motion. These are compared to numerical solutions obtained in more general cases. One solution of particular interest is when the probe undergoes oscillatory motion through the centre of the ring (and perpendicular to it). By taking the ring radius sufficiently large, this solution should remain stable to any stringy corrections coming from open-strings stretching between the probe and the NS5-branes along the ring.Comment: 17 pages, Latex, 8 figures; References adde

Control of Leaf-Feeding Insects on Yellow-Poplar

Yellow-poplar, Liriodendron tulipifera L., also known as the tulip-poplar, is an important source of pulpwood and saw timber, and it is widely used as a shade tree. Numerous insect species attack the foliage of yellow-poplar. In 1965, Odontopus calceatus (Say) was first observed seriously damaging yellow-poplar in Tennessee (Russell and Stanley 1967). Defoliation was so severe at the University of Tennessee Oak Ridge Forest Experiment Station that growth reduction was attributed to this pest (Buckner 1972). In 1967, observations by one of us (E.A.H.) indicated that several other insects attack yellow-poplar leaves during the spring. Infestations of the aphid Macrosiphum liriodendri (Monell) and gall midges, Cecidomyia sp. and Thecodiplosis liriodendri Osten Sachen, were common. Cecidomyia sp. was called tulip vein gall, and T. liriodendri tulip spot gall, by Felt (1940), who described their damage. Since no measures had been determined for their control, a series of tests was conducted to determine the efficacy of various insecticide treatments