Sharpened: Dialysis Fluid

Osteomalacic dialysis osteodystrophy: a trial of phosphate-enriched dialysis fluid.

To assess whether phosphate depletion is an aetiological factor in osteomalacic dialysis osteodystrophy we undertook a prospective trial of phosphate-enriched dialysis fluid, in association with oral 1alpha-hydroxycholecalciferol, for this condition. Thirty patients started the trial; of the 27 who completed more than 6 months' treatment, 14 had iliac crest bone biopsies at the beginning and en...

Hazard of peritoneal dialysis: contaminated fluid.

Acute haemolysis due to concentrated dialysis fluid.

Fatal acute haemolysis occurred in a 65-year-old man undergoing regular home haemodialysis for terminal renal failure. Circumstantial evidence indicating that the haemolysis resulted from exposure to concentrated dialysis solution was supported by in-vitro studies. Frank haemolysis in blood samples occurred at a dilution of greater than or equal to 1/2 of dialysis fluid. Osmotic fragility tests...

Quality Assessment of Sharpened Images

This master’s thesis investigates the possibilities of quality assessment of sharpened images. Reliable assessment of these images is crucial for comparing the performance of particular sharpening techniques and also for finding the optimal amount of sharpening. In the thesis, fundamentals of edge detection, sharpness perception, and sharpening algorithms are given. Four of the algorithms are d...

Sharpened lower bounds for cut elimination

We present sharpened lower bounds on the size of cut free proofs for first-order logic. Prior lower bounds for eliminating cuts from a proof established superexponential lower bounds as a stack of exponentials, with the height of the stack proportional to the maximum depth d of the formulas in the original proof. Our results remove the constant of proportionality, giving an exponential stack of...