Electrical signals in response to both diffuse flashes of light and phase-alternating spatial patterns were recorded from the eyes and from the occipital scalp of a subject with a traumatic unilateral (right) optic nerve section. Clinical examination disclosed a grossly normal right eye with no light perception, a Marcus Gunn pupil, and an atrophic optic disc. The left eye was normal. The elect...

As part of an island-wide project to identify and eradicate potentially invasive plant species before they become established, a program of inventories is being carried out in the urban and agricultural zones of the four inhabited islands in Galapagos. This study reports the results of the inventory from Puerto Villamil, a coastal village representing the urban zone of Isabela Island. We visite...

The study investigated the effectiveness of Prosopis africana and Ficus mucoso ethanolic leave extract in control Callosobruchus maculatus infesting cowpea. Treatments were applied at different concentrations (10 %, 30 % , 50 0 %) on Five pairs newly emerged adult C. introduced into each treatment. two botanicals evaluated insecticidal effects it has insect data recorded mortality, oviposition ...

AIMS Reliance on intraocular pressure, optic nerve cupping changes, nerve fibre layer integrity, and visual field changes may delay treatment of glaucoma since irreversible changes may have already occurred at the time of diagnosis. Abnormal pattern electrical retinal responses (PERR or PERG) have been demonstrated in patients with ocular hypertension (no visual field changes) and glaucoma when...

In emerging high-speed integrated-services packet-switched networks, fair packet scheduling algorithms in switches and routers will play a critical role in providing the Quality-ofService (QoS) guarantees required by real-time applications. Elastic Round Robin (ERR), a recently proposed scheduling discipline, is very efficient with an O(1) work complexity. In addition, it has superior fairness ...

The Staphylococcus aureus genome encodes three ferric uptake repressor (Fur) homologues: Fur, PerR, and Zur. To determine the exact role of Fur in S. aureus, we inactivated the fur gene by allelic replacement using a tetracycline resistance cassette, creating strain MJH010 (fur). The mutant had a growth defect in rich medium, and this defect was exacerbated in metal-depleted CL medium. This gro...