-the coupled production and utilization of dissolved X organic matter (DOM) through the activities of phyto plankton production, predator)' consumption, and microheterotrophic growth define the "microbial loop," which constitutes an important pathway of carbon and energy' flow in all marine ecosystems (Azam et al. 1983). Comprehensive results from both the AMERIEZ (Antarctic Marine Ecosystem Re...

Recurrence of macular hole (MH) following the standard approach of pars plana vitrectomy, posterior hyaloids removal, internal limiting membrane peeling, gas tamponade, and postoperative positioning is a common postoperative complication following MH surgery. We present a new surgical technique which involves induction of serous macular detachment around the MH, parafoveal retinal massage to br...

PURPOSE A rare case of unilateral retinal detachment due to a macular hole in a patient with Behçet disease is presented. METHODS Interventional case report. RESULTS A 31-year-old man with a 6-year history of Behçet disease presented with a relapse in his disease and received infliximab. Ten days later, as the inflammation subsided, a retinal detachment caused by a macular hole was diagnose...

PURPOSE To determine the extent that auditory force feedback (AFF) substitution improves performance during a simulated ophthalmic peeling procedure. METHODS A 25-gauge force-sensing microforceps was linked to two AFF modes. The "alarm" AFF mode sounded when the force reached 9 mN. The "warning" AFF mode made beeps with a frequency proportional to the generated force. Participants with differ...

This is the first of two lectures by Phil Green on “Sequence Assembly.” Yeast and some of the bacterial genomes have already been completely sequenced. There is also a rapidly growing body of known human sequence. All this has been because of our ability to read DNA. This lecture discusses the shotgun strategy for rapid DNA sequencing, and begins discussion of sequence assembly algorithms (to b...

Weedy Amaranthus species frequently cause economically significant reductions in crop yields. Accurate identification of Amaranthus species is important for efficient weed control, but Amaranthus species can interbreed, which might cause difficulty when identifying hybrid-derived specimens. To determine which of several economically important weedy Amaranthus species are most genetically simila...