Copyright Notice

All images are copyrighted by their respective institutions.

The copyright law of the United States (Title 17, United States Code) governs the making of reproductions of copyrighted material, including but not limited to downloading, printing, and performance (i.e., display) Any individual who uses copies of text and/or images for purposes in excess of “fair use” as defined by the copyright law may be liable for copyright infringement.

Any use of text and/or images which is not defined as educational or fair use requires written permission from the principal investigators. Content of this web site may not be used for commercial purposes.


The authors welcome classroom use of its web site text and images. Students and teachers may download text and/or images without restriction for use in a classroom setting. To request non-classroom use of text or images from the web site, contact Director of the MAC Lab Patricia Samford.


Links to other web sites are occasionally provided as a convenience for our users and their inclusion does not imply the authors’ endorsement of content or responsibility for use of these sites. Please carefully read all terms, conditions, and privacy statements of each web site you visit.

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