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.
Once absorbed, the energy is sent back into the. atmosphere in the form of infra-red rays. Some of the energy passes back into space, but much of it remains trapped in the atmosphere by the greenhouse gases, causing our globe (earth) to warm up. This warming is what we call Global Warming, and it is caused by the greenhouse effect. The greenhouse effect is important. Without the greenhouse effect, the earth would not be warm enough for humans to live. But if the greenhouse effect becomes stronger, it could make the earth warmer than usual.