It is a relatively simple concept. We provide people who are homeless permanent housing first, along with supportive services, instead of placing them into shelters. This means housing becomes the first step in moving out of homelessness, not the last. Currently, we are using shelters as long-term housing. This is expensive.
A catena (Latin: chain) is a chain of related soil types, known as facets, down a uniform slope. The term was introduced by the soil scientist G. Milne in 1935, working in Africa, as the sequence of soils that ran from the crest of a hill to the floor of the swamp in the valley below it.
Melena is a term that describes a particular appearance of blood in stools. This term describes stools that are black, tarry and often foul-smelling because of the presence of blood from the upper gastrointestinal tract.esting the stools is important because in certain specific situations, stools can take on the appearance of melena even if no bleeding is present. For example, eating black licorice, eating blueberries or taking iron pills can cause stools to have a similar appearance.