(1) LCSE has been well characterized in the literature as a major risk factor for the subsequent development of neoplastic recurrence in the peristomal area.
We conducted a study to determine whether certain clinicopathologic factors are associated with a greater risk ([greater than or equal to] 20%) of neoplastic recurrence in patients with pN0 LCSE. Such findings would suggest the need for adjuvant postoperative radiotherapy.
We then examined the endoscopy summaries and pathology reports to identify those who had undergone surgical treatment and had pN0 LCSE. LCSE was defined as a tumor that originated in the supraglottis or glottis and extended to the subglottis more than 10 mm anteriorly or 5 mm posteriorly; pN0 was defined as representing resected cervical lymph nodes that were histologically free of metastatic neoplasm.
The goal is to enable researchers to do problem solving by visualizing and interacting with the results of their simulation codes in real time using the CAVE and Immersadesk projection-based virtual-reality displays developed by the University of Illinois at Chicago's Electronic Visualization Laboratory (EVL), the PowerWall developed by Minnesota's LCSE, and the large-screen stereo Infinity Wall, jointly developed by EVL, LCSE, and NCSA.
LCSE's PowerWall is a large-screen, high-resolution, monoscopic projection display capable of 7.6-million pixel resolution for the visualization and analysis of very-high-resolution data.
LCSE is working with Seagate Technology to develop RAID systems based on Seagate's new 9GB 3.5-inch disks with 100MB/sec Fibre Channel interfaces.
The LCSE researchers form an interdisciplinary team with Woodward as team coordinator, Porter working on a the gas dynamics code and setting up the global model for the simulated star, Anderson working on the parallel structure of the code for multitasking efficiency and latency tolerance, Habermann working on the message passing layer, and Ruwart working on the input/output and storage strategy for the runs.
Silicon Graphics (SGI), Mountain View, Calif., and its Eagan, Minn.-based Cray Research supercomputer division have provided a substantial amount of equipment and support to both the NCSA and the LCSE. SGI has indicated that it intends to update the equipment it provides to LCSE every 9 to 12 months.
The LCSE simulation used two 64-processor systems at the NCSA interconnected by 100 MB/sec HIPPI channels.