Since the cornea is avascular, which renders it optimally transparent, the nutrition of the corneal epithelium, stromal keratocytes, and corneal endothelium must occur via diffusion of glucose and other solutes from the aqueous humor, across the corneal endothelium.
6 an examination in the practical skills of a subject. a science practical. (C17: from earlier practic, from French pratique, via Late Latin from Greek praktikos, from prassein to experience, negotiate, perform) â¦ practicality, practicalness n. A distinction is usually made between practical and practicable. Practical refers to a person, idea, project, etc., as being more concerned with or relevant to practice than theory: he is a very practical person; the idea had no practical application. Practicable refers to a project or idea as being capable of being done or put into effect: the plan was expensive, yet practicable.
The most central forms of practical knowledge, however, are value judgements that a certain action is optimum, where 'optimum' is defined in a certain internalist manner (sect. 5). 1. The Definition of 'Practical Knowledge' The aim of this paper is to clarify what practical knowledge is, analytically and materially.n this way we may have two different kinds of practical knowledge. First, there is the decision theoretical and structural knowledge that leads to a certain form of decision, including the use of a certain criterion to decide. And, second, there is the material knowledge which is acquired and used during the decision.