Acetylcholinesterase activity was measured in rectal-biopsy specimens obtained from nineteen children. Seven children in whom the diagnosis of Hirschsprung's disease was established were found to have a significantly higher enzyme activity than the twelve in whom this diagnosis was excluded. The estimation may prove to be of value in the diagnosis of… (More)
Southwest Mexico City (SWMC) air pollution is characterized by high concentrations of ozone and particulate matter < 10 μm (PM(10)) containing lipopolysaccharides while in the North PM(2.5) is high. These intra-city differences are likely accounting for higher CD14 and IL-1β in SWMC v NMC mice myocardial expression. This pilot study was designed to… (More)
Lysinuric protein intolerance (LPI) is an inborn error of metabolism which usually presents in infancy with failure to thrive and vomiting. Two patients are described who presented in adult life with hyperammonaemic coma due to LPI. Both had been underweight and had had intermittent gastrointestinal symptoms during childhood. They were of normal intellect… (More)
Buls, Gary Dale, "Convergence and stability of variable-stepsize variable-formula multistep multiderivative methods " (1986). While the most advanced technology has been used to photograph and reproduce this manuscript, the quality of the reproduction is heavily dependent upon the quality of the material submitted. For example: • Manuscript pages may have… (More)
Acknowledgement This work would not have been possible without the inestimable guidance of Kristin Bennett, my mentor and advisor. I would like to thank her, first and foremost, for her constant support and encouragement. I like to thank Jong-Shi Pang, with whom I collaborated extensively on these projects, for his guidance and support. I would also like to… (More)
With conventional CT scans, alterations of morphology on repeated examinations can only be appreciated if significant, because identical slice positions are impossible to achieve. The authors have developed a simple and accurate method of repositioning the head not requiring conventional stereotactic head fixation and suitable for the outpatient situation.