The nervous systems of many gastropods contain unusually large neurons . The cell bodies of these giant neurons can be more than 1 mm in diameter, as in the case of the colossal cells of Aplysia (Coggeshall, 1967) . The nucleus represents approximately 30 per cent of the volume of the giant cell body, and in Aplysia californica the amount of nuclear DNA is many thousands of times greater than t...

The aim of the present study was to determine the effect of different concentrations of mitomycin C (MMC) administered intraoperatively during laser-assisted subepithelial keratectomy (LASEK) surgery. A total of 261 patients (496 eyes) were randomly divided into two groups: 0.04% MMC treatment group consisting of 133 patients (245 eyes) and the 0.02% MMC treatment group consisting of 128 patien...

PURPOSE To evaluate the current clinical evidence of safety and efficacy of intraoperative topical application of 0.02% mitomycin C (MMC) used for up to 2 minutes after surface ablation for correction of myopia. METHODS A comprehensive literature search was conducted of Cochrane Library, MEDLINE, and EMBASE to identify relevant trials comparing surface ablation for correction of myopia with a...

Objective—To compare two experimental scuba mouthpieces with a commercially available design. Methods—A laboratory study using six men to assess eVort, muscle pain, muscle fatigue, facial discomfort, tooth discomfort, and loss of lip sensation using a visual analogue scale. Cephalometric radiographs and analysis of jaw position with each mouth piece were also used. Results—Fully customised mout...