Long-term EEG monitoring in neonatal and pediatric intensive care.
Explore the source record for details and available documents.
Asphyxia Neonatorum↗
Biomedical subjects
S Nivall
Publications and source records attributed to S Nivall.
Computerized measurement of LDL particle size in human serum. Reproducibility studies and evaluation of LDL particle size in relation to metabolic variables and the occurrence of atherosclerosis.
OBJECTIVES: The main aims of the present research project were to develop and evaluate a new software program for evaluation of LDL particle size applied to the gradient gel electrophoresis methodology without the use of previous ultracentrifugation, and to investigate the relationships among LDL particle size, metabolic variables and atherosclerosis, as measured by ultrasound, in subjects with different degrees of insulin resistance. METHODS: LDL particle size was determined by polyacrylamide gradient gel electrophoresis. RESULTS: Coefficient of variation for between-assay experiments was 0.3% (r = 0.99) for measurement of LDL peak particle size. LDL peak particle size was negatively correlated to serum triglycerides, apolipoprotein B, fasting insulin, BMI and diastolic blood pressure and positively correlated to HDL. Furthermore, subjects with moderate to large plaques in the carotid artery had smaller LDL particles compared to subjects without plaques. CONCLUSIONS: This project resulted in a highly reproducible, computerized method for the analysis of LDL particle size. The data suggest that it is possible to assess LDL particle size in serum without the use of previous ultra-centrifugation. LDL particle size was associated with metabolic variables and the occurrence of moderate to large plaques in the carotid artery.
Apolipoproteins B↗
Image quality in digital chromosome analysis systems.
This paper reports on an investigation into the differences in image quality of different components used in a digital image processing system for chromosome analysis. As chromosome aberrations are important tools in the cloning of genes, it is important to know if the introduction of computerized analysis systems increases the risk of missing small aberrations. In this investigation the number of visible bands on a number of chromosomes has been used as a measure of quality. The images compared are microscope ocular images, photographs from a microscope built-in camera, digital images from a high and from a standard resolution camera, presented both on screen and print-out on paper. The main conclusions are that: (1) the view in the microscope ocular gives the best resolution, (2) there are risks of losing vital information using the digital image processing system for chromosome analysis, and (3) this risk is significantly reduced when using a high resolution camera.
Chromosome Banding↗