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- Harry L. Pardue, Alain Truchaud, Kyoichi Ozawa, John F. Place, Paul Schnipelsky
- Clinica chimica acta; international journal of…
- 1993

This paper introduces a systematic approach to organizing the discipline of clinical chemistry. The approach is called a top-down systems approach because it starts at the top with the most general concepts and works down through less general concepts to the most specific details and techniques. The hypothesis is that the discipline can be organized into… (More)

- Stuart D Hamilton, Harry L. Pardue
- Clinical chemistry
- 1982

We describe a new data-processing method for the kinetic quantification of substrates of enzyme-catalyzed reactions. Nonlinear regression is used to fit data for absorbance (A) and rate (dA/dt) vs time to the rate form of the Michaelis-Menten equation. Fitting parameters are the maximum velocity (Vmax), the Michaelis constant (Km), and the total absorbance… (More)

- Harry L. Pardue
- CRC critical reviews in clinical laboratory…
- 1977

- Stuart D Hamilton, Harry L. Pardue
- Clinical chemistry
- 1984

We report conditions and characteristics of a new kinetic method for measuring lactate. Using a multiple linear regression method, we fit data for absorbance and for rate of change of absorbance to a modified rate form of the Michaelis-Menten equation. The principal objective of the fitting process is to compute the total absorbance change, delta A… (More)

- C P Fitzpatrick, Harry L. Pardue
- Clinical chemistry
- 1992

We describe an approach for the simultaneous determination of isoenzymes of alkaline phosphatase (EC 3.1.3.1) based on the kinetic behavior of inhibition reactions. Data for absorbance vs time, collected while enzymes are being inhibited, are fitted with suitable models to obtain results related to activities of the individual isoenzymes. The primary focus… (More)

- Ronald B. Davis, JOSEPH E. THOMPSON, Harry L. Pardue
- Clinical chemistry
- 1978

This paper discusses properties of several statistical parameters that are useful in judging the quality of least-squares fits of experimental data and in interpreting least-squares results. The presentation includes simplified equations that emphasize similarities and dissimilarities among the standard error of estimate, the standard deviations of slopes… (More)

- John F. Place, Alain Truchaud, Kyoichi Ozawa, Harry L. Pardue, Paul Schnipelsky
- Annales de biologie clinique
- 1994

OBJECTIVE
To consider the role of software in system operation, control and automation, and attempts to define intelligence.
METHODS AND RESULTS
Artificial intelligence (Al) is characterized by its ability to deal with incomplete and imprecise information and to accumulate knowledge. Expert systems, building on standard computing techniques, depend… (More)

- Harry L. Pardue, Tracey Hewitt, Marcelo Milano
- Clinical chemistry
- 1974

We report a detailed analysis of the effects of photometric errors in absorption spectroscopy. We show that photometric errors can be divided into five categories, each having a different effect on the relative concentration error for equilibrium and kinetic analyses. Error coefficients defined for each category are incorporated intomathematical equations… (More)

- Bonnie L Bacon, Harry L. Pardue
- Clinical chemistry
- 1991

Here we describe an error-compensating kinetic-based method for the enzymatic quantification of creatinine in serum. The method, which has a large linear range and very low dependency on experimental variables that influence enzyme activity, is based on the use of creatinine amidohydrolase in a four-step coupled reaction sequence to generate a product that… (More)

- Harry L. Pardue, Bonnie L Bacon, Marcy Nevius, John W. Skoug
- Clinical chemistry
- 1987

We studied the kinetic behavior of the reaction of alkaline picrate and creatinine and evaluated a nonlinear curve-fitting method for quantifying creatinine in serum. Using a 3 X 3 factorial experimental design, we evaluated interactive effects among temperature and concentrations of creatinine, picrate, and NaOH. We found no evidence of interference by… (More)