Nerve damage can contribute to ptosis as well. A common cause of ptosis is Hornerâs syndrome. Hornerâs syndrome is a form of nerve damage that occurs in the face and eyes. Itâs usually the result of an underlying condition. Stroke and other brain injuries, spinal cord injuries, and some forms of lung cancer can cause Hornerâs syndrome and ptosis.
Definition - What does Abstraction mean? Abstraction is the act of representing essential features without including the background details or explanations. In the computer science and software engineering domain, the abstraction principle is used to reduce complexity and allow efficient design and implementation of complex software systems.
A concrete noun is one which can be experienced by our senses; we can touch it, or see it, or hear it, and so on. For example: tree, landscape, symphony, dinner, table, horse, â¦ cacophony. An abstract noun is one which cannot be experienced in that way; it expresses a concept.