Placental blood flows and oxygen transfer during uterine contractions: a mathematical model.
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Amniotic Fluid↗
Biomedical subjects
L A Butler
Publications and source records attributed to L A Butler.
A real-time software system on the PDP-11 for two-channel EEG spectral analysis during surgery.
Three functions are performed in real time by a stand-alone PDP-11-assembly language program. First two channels of EEG data are acquired by quantization techniques; second spectral analysis of the EEG data is carried out; third the resulting spectra are displayed as time compressed spectral profiles on an X-Y plotter. The method provides EEG time trends during anesthesia, permitting evaluation of brain functions.
Anesthesia, General↗
Human cardiorespiratory and analgesic effects of intravenous diazepam and local anesthesia.
The only clinically detectable cardiovascular changes after intravenous diazepam administration are a moderate fall in systolic blood pressure and a rise in pulse rate. But it will produce significant cardiovascular changes, principally the lowering of total peripheral resistance and stroke volume. The drug has a long history of safety but is not totally innocuous. It is suggested that if diazepam is used in combination with methohexital, consideration should be given to the additive effects on total peripheral resistance.
Analgesics↗
ECG signal processing during surgery.
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Computers↗