The referring material  has been fixed in a tangible medium and is, by definition, copyrighted, under international treaties arising from the Berne convention . It has been developed for use in teaching and research by David Dailey. My intention is that the material may be used by others involved in educational pursuits under common-sense principles of fair use, attribution, and partnership; nevertheless, use of the material may be further restricted by various statutes contained in U.S. code, by international treaties, and by the precedents established by case law, not all of which are guaranteed to conform to common sense. If your common sense diverges from my own, or if either diverges from the laws of the universe, I suggest you ask for permission before re-using the material (especially if there might be money involved).

[disclaimer --  Certain work found on the referring page (variously completed during the years 1970-) was not done as a part of contractual obligations for any employer. Such work does not necessarily represent the opinions of employers past or present. For further disclaimers see here.]