Gram-negative endotoxin: a biologically active lipid.
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Animals↗
Biomedical subjects
J D Coleman
Publications and source records attributed to J D Coleman.
Bovine respiratory disease complex: a comparison of potential predisposing and etiologic factors in Australia and the United States.
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Animals↗
Microprocessor detection of electrocardiogram R-waves.
ECG monitoring devices for coronary care units require reliable R-wave dectors as a prerequisite for subsequent analysis. A simple algorithm has been developed for the detection of R-waves in an ECG signal with a microprocessor (Motorola MC6800). Detection criteria used were gradient and duration of a single upslope or downslope. Rejection of muscle noise and other artifiacts was achieved by setting system constants to optimum values which were determined by a short preliminary trial. This constant threshold system has been shown to cope with sudden changes of QRS complex amplitude better than some self adjusting systems. Assessment runs using patient tapes from a coronary care unit show total errors due to false positives and negatives are typically about 1% of the actual number of R-wave occurrences.
Analog-Digital Conversion↗
Prevention of sudden death caused by Clostridium sordellii in feedlot cattle.
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Animals↗