The color in the pigment of the stain is caused when molecules absorb light in the visible wavelength range (400-780 nm) [10]. The wavelengths that are not absorbed will be reflected instead and are visible to the human eye. For example, red wine stains are red because the molecules absorb every wavelength that is not in the red range, and the red wavelengths (500-600 nm) are then reflected to ...

Step in procedure Supernatant haemoglobin (g) After thawing 0 45 First wash 1 6 Second wash 0-45 Third wash 0-12 Final product 0-023 After incubation 0-05 stability of the red cell preparation after incubation at 37°C for 30 minutes. Recovery was calculated from the supernatant haemoglobin in relation to the initial total haemo-globin after thawing (table 2). Mean (SD) recovery was 70% (13 3), ...

Context: Developmental odontogenic cysts account for 25% of all odontogenic cysts of the jaw. They are commonly associated with impacted or embedded teeth like mandibular/maxillary third molar and maxillary canines. Dentigerous cyst (DC) is a common developmental odontogenic cyst, but its inflammatory variant is quite rare. Settings and design: The representative tissue received was 10% formali...

Digestive cells of hydra contain accumulations of irregular particles, 200 to 300 A in diameter and of low density, that stain with lead hydroxide (11). These particles were observed in clear areas of hyaloplasm and were often partially or completely enclosed by mitochondria. Similar dense particles in the hyaloplasm of digestive cells have been identified as glycogen (7, 16), although no assoc...

Digestive cells of hydra contain accumulations of irregular particles, 200 to 300 A in diameter and of low density, that stain with lead hydroxide (11). These particles were observed in clear areas of hyaloplasm and were often partially or completely enclosed by mitochondria. Similar dense particles in the hyaloplasm of digestive cells have been identified as glycogen (7, 16), although no assoc...

In this paper a stain sensor to measure large strain (80%) in textiles is presented. It consists of a mixture of 50wt-% thermoplastic elastomer (TPE) and 50wt-% carbon black particles and is fiber-shaped with a diameter of 0.315mm. The attachment of the sensor to the textile is realized using a silicone film. This sensor configuration was characterized using a strain tester and measuring the re...

The components of higher-plant cell walls which become electron-opaque after staining with ruthenium-osmium were studied by electron microscopy. A fibrillar material which absorbs this stain is a major wall constituent in the root epidermal cells of carrot and morning glory. In both form and size, these fibrils resemble those found on the surface of suspension-cultured cells of the same species...

Nyka9) employed the Gomori-Grocott's chromic acid-methenamine silver method for demonstrating tubercle bacilli in tissue sections after sublimate fixative with added hydrogen peroxide or periodic acid. He described that this procedure could demonstrate mycobacteria that had lost their acidfastness by the usual carbol fuchsin stain. Harada5) also employed the periodic acid-methenamine silver sta...

The objective of the present study was to assess the effect of diabetes on buccal mucosa by using cytomorphometry and to emphasize its relevance as an additional tool to aid in the evaluation of oral mucosal changes in diabetes mellitus. The study Group consisted of 100 subjects divided into 50 control subjects (Group C) and 50 Type II diabetic subjects (Group D). We analyzed and compared betwe...

Helicobacter pylori (Hp) gastritis is a worldwide problem significantly associated with duodenal and gastric peptic ulcer disease, gastric carcinomas, and MALT-type lymphomas. A simple, rapid, reproducible, reliable, and inexpensive stain to detect the organism in gastric biopsy specimens is thus of great value. To assess the reliability and cost-effectiveness of a novel Alcian yellow-toluidine...