1 In the upper course, the river erodes the landscape and bends to avoid hard rock, creating interlocking spurs. 2  Rapids and waterfalls can form when it runs over alternating layers of hard and soft rock. 3  This is because soft rock erodes more easily than hard rock. In the upper course, the river erodes the landscape and bends to avoid hard rock, creating interlocking spurs. 2  Rapids and waterfalls can form when it runs over alternating layers of hard and soft rock. 3  This is because soft rock erodes more easily than hard rock.
OSHA defines in-patient hospitalization as a formal admission to the in-patient service of a hospital or clinic for care or treatment. An overnight stay does not determine whether the case is reportable or not.
Embolization is defined as the therapeutic introduction of various substances into the circulation to occlude vessels, either to arrest or prevent hemorrhaging; to devitalize a structure, tumor, or organ by occluding its blood supply; or to reduce blood flow to an arteriovenous malformation..