Data Acquisition Software for the Holifield Heavy Ion Research Facility

A new computer system to perform data acquisition and analysis for the Holifield Heavy Ion Reseach Facility's Oak Ridge Isochronous Cyclotron (ORIC) and the newer 25 MV tandem accelerator has been under development. This paper presents the current implementation and discusses the design of the data acquisition/analysis software.     

On fracture toughness in tearing of sheet metal

An approximate analysis is presented for predicting the specific fracture toughness,R, in the tearing fractures of ductile sheet from the stress-strain relationships. The model assumes the fracture work to be the plastic work consumed by localized necking. Predictions are compared to experimental findings.     

Sydenham Chorea: magnetic resonance imaging reveals permanent basal ganglia injury

We report the case of a 26-year-old man with diffuse esophageal leiomyomatosis involving the trachea. The tumor was resected by total esophagectomy and partial resection of the trachea and the left main bronchus. The tracheobronchial defect was repaired with a free forearm skin graft with satisfactory outcome. This approach offers good long-term prospects.     

The Kock pouch urinary reservoir

The use of detubularized ileum for the Kock pouch produced a low pressure, high capacity system superior to large bowel segments that provided excellent continence and protection of the upper urinary tracts. The early enthusiasm was tempered, however, by the technically demanding aspects of the construction of the nipple valves, the early and late complications, and occasional catheterization problems. With simple modifications in the fixation of the intussuscepted nipples, limiting use of staples and mesh collars, and tapering of the stoma, much of those problems have been resolved. The nipple valve is reliable and superior to the tunneled implant for the dilated ureter. With more widespread indications for continent neobladders, the hemi-Kock reservoir remains one of the most dependable and stable neobladders.     

Delirium phenomenology illuminates pathophysiology, management, and course

The phenomenology of delirium has received little standardized longitudinal study but offers the prospect of valuable insights regarding clinical subtypes, differentiation from other neuropsychiatric disorders, identification of underlying pathophysiologies, management, and course. This review examines current approaches to the investigation of delirium phenomenology and how the findings to date illuminate our understanding of delirium. It concludes with recommendations for future investigations.