In medicine (gastroenterology), angiodysplasia is a small vascular malformation of the gut. It is a common cause of otherwise unexplained gastrointestinal bleeding and anemia. Lesions are often multiple, and frequently involve the cecum or ascending colon, although they can occur at other places.Treatment may be with colonoscopic interventions, angiography and embolization, medication, or occasionally surgery.igns and symptoms [edit]. Although some cases present with black, tarry stool (melena), the blood loss can be subtle, with the anemia symptoms predominating. Fecal occult blood testing is positive when bleeding is active.
Consequences of greenhouse-effect temperature rises. Predicting the consequences of global warming is one of the most difficult tasks for the worldâs climate researchers. This is because the natural processes that cause rain, hail and snow storms, increases in sea level and other expected effects of global warming are dependent on many different factors.
The negative effects of greenhouse effect is very well known among people as global warming. Global warming is a recent phenomena of the 20th and the 21st century. The adverse effects of global warming start from temperature rise to melting of polar ice caps and submerging of the islands and coastal areas under water.he greenhouse effect refers to the way the sun's heat radiates up  from the warmed surface of the earth, where it is absorbed by the  greenhouse gases in the atmosphere. Th â¦ e more gases there are, the  more heat is absorbed.    The natural greenhouse effect is supported by the  water and carbon cycles.