His âsix defining characteristicsâ are as follows: 1  1. âA discourse community has a broadly agreed set of common public goals.â. 2  2. âA discourse community has mechanisms of intercommunication among its members.â. 3  3. âA discourse community uses its participatory mechanisms primarily to provide information and feedback.â.
Causes of Similar Symptoms to Dark stool in children. Research the causes of these symptoms that are similar to, or related to, the symptom Dark stool in children: 1  Stomach bleeding (4 causes). 2  Rectal bleeding (324 causes). 3  Internal bleeding (22 causes). 4  Peptic uler. 5  Gastritis (39 causes).
This may indicate that un-digested blood is in the stool. Other possible causes of âmelenaâ stools are, iron deficiency anemia, cirrhosis, colorectal cancer, peptic ulcer, or stomach cancer.Very dark stools, for example, may indicate an ulcerative lesion in the higher digestive tract.ile salts in the stool excreted by the liver give it a normal brown colour. Obstruction to bile flow out of the liver (called âcholestasisâ), or liver infections like viral hepatitis (A, B, C, etc.), may produce clay colored stools.