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Biomedical subjects

N T Winkler

Publications and source records attributed to N T Winkler.

7 recordsLinked to original sources
PubMedDate not supplied

Statistical evaluation of admission criteria for a radiography program.

The admission process of a radiography program was analyzed. The criteria used were summarized in a weighted score. A measurable difference was found between applicants offered appointment and those not, and the weighted score was found to be a statistically significant predictor of subsequent student performance.

Achievement↗
PubMedDate not supplied

Evaluation of pH monitoring as a method of processor control.

Sensitometry and pH values of the developer solution were compared in controlled over-replenishment, developer depletion, fixer contamination experiments, and on a daily quality control basis. The purpose of these comparisons was to evaluate the potential of pH monitoring as a method of processor control, or a supplement to sensitometry as a method of quality control. Reasonable correlation was found between pH values and film density in two of the three experiments but little or no correlation was found in the third experiment and on a day-to-day basis. The conclusion drawn from these comparisons is that pH monitoring has several limitations which render it unsuitable as a method of daily processor quality control as either a primary or supplementary technique. Sensitometry takes into account all the variables encountered in film processing and is the clear method of choice for processor quality control.

Chemical Phenomena↗