BLUE STAIN ON LUMBER

Modified Toluidine Blue: an Alternative Stain for Helicobacter pylori

Helicobacter pylori infection is associated with many gastroduodenal diseases such as peptic ulcer disease and gastric cancer (Uemura et al., 2001). The organism is the major cause of chronic active gastritis resulting in chronic atrophic gastritis and its end stage, gastric atrophy, which is believed to be a precancerous lesion (Pandey et al., 2010). Intestinal metaplasia, usually associated w...

Alcian blue 8GS: a new stain for mucin.

1. Doubtful specificity. Not only mucins accept the stain; other elements such as nuclei, connective tissues, &c, may do so as well. 2. Loss of stain. In some cases where mucin is stained in a specific manner by dilution of the stain used, by adjustment of the pH of the stain solution, or by metachromatic properties of the stain, it is frequently difficult or impossible to dehydrate, clear, and...

Congo blue: a rapid stain for elastic fibres.

7Edberg SC, Bottonbley CJ and Gam K. Use of sodium polyanethol sulfonate to selectively inhibit aminoglycoside and polymyxin antibiotics in a rapid blood level antibiotic assay. There are numerous empirical methods for staining elastic fibres.' Most require relatively lengthy procedures which involve overnight incubation, and are therefore not adapted to simultaneous evaluation with the corresp...

Great Lakes Lumber on the Great Plains: the Laird, Norton Lumber Company in South Dakota

Hardwood Lumber Scanning Tests to Determine NHLA Lumber Grades

This paper concerns the scanning, and grading of kiln-dried hardwood lumber. A prototype system is described that uses laser sources and a video camera to scan boards. The system automatically detects defects and wane, grades the boards, and then searches for higher value boards within the original board. The goal is to derive maximum commercial value based on current market lumber prices. This...