Welcome to biotrans.pratt.duke.edu, the website for "Principles and Models of Biological Transport". This site was created to facilitate communication among students, faculty and other users of the text, after the book leaves the store. Instructors can use the site to post syllabi and additional problems based on the text; students will find links to more in-depth sources and more recent advances; corrections and updates can be posted by any user. The idea is to create and support a "community of the book" that, through mutual cooperation, will maintain its currency and increase its usefulness for all concerned, well into the future.

Look Inside

Here's the why and what of the book: the Preface that describes the scope and organization of the text and makes some suggestions regarding its classroom use, and abbreviated and detailed Tables of Contents.

You can download chapters from SpringerLink if you have institutional access, or browse the text on Google Book.

Using the Book

This is the support area of the site. A sample one-semester syllabus is presented and other users are invited to post theirs. New problems, with or without solutions, or worked examples, can be posted by community members. A link is provided to a list of the inevitable errata.

New! A suggested syllabus for an Engineering Physiology course based primarily on the text has been added.

Contact Us

This is where you register to get on our listserv and unsubscribe to get off. You can also email us from this page. Suggestions for improving this site are always welcome.

Faculty response needed: We have received several inquiries regarding a solutions manual for the text. There is none available at this time, but one could be written if it would facilitate the adoption of the text. Please email the author at mhfriedm@gwu.edu with your views on the matter. Of particular interest:

  • are you using or do you plan to use the text and would you appreciate the availability of a solutions manual?
  • are you neither using nor planning to use the text because there is no solutions manual, but would consider using it if there were one?

Thanks for your guidance on this matter.

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In Chapter 6, we introduce the notion of osmotic pressure, which is a driving force for solvent flow that arises from differences in the composition of the solutions on the two sides of a semipermeable membrane. On p. 240, we note that [...]

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