Refer to Design Step 1 for introductory information about this design example. Additional information is presented about the design assumptions, methodology, and criteria for the entire bridge, including the steel girder. Figure 3-1 Span Configuration. Figure 3-2 Superstructure Cross Section.
HYPOFLUORESCENCE Hypofluorescence may be caused by 1) blocked fluorescence, which is synonymous with negative fluorescence or transmission decrease, or 2) a vascular filling defect. Blocked fluorescence corresponds to the size, shape, and location of the blocking material seen ophthalmoscopically.
There are many causes of secondary hyperparathyroidism and it can occur in any condition that causes chronic hypocalcaemia. The commonest cause is chronic kidney disease but may also include vitamin D deficiency from lack of sunlight exposure or malabsorption of vitamin D (small bowel disease, pancreatic disease etc).