At parties, people no longer give me a blank stare when I tell them I write free software. "Oh, yes, open
source—like Linux?" they say. I nod eagerly in agreement. "Yes, exactly! That's what I do." It's nice not
to be completely fringe anymore.
In the eight years since publication of the first edition, enormous progress has been
made in the field of skin imaging and analysis. Because of the broad array of new
methods now available to the research scientist—and more and more to the clinically-
oriented dermatologist—we were able to widen the scope of this book from
the skin surface to the entire skin. This is also reflected in the change of the volume
title, Bioengineering of the Skin: Skin Imaging and Analysis.
Hence, this second edition is a major revision of the first edition, with more
than 30 new chapters added....
Minimally Invasive Surgery represents the future of many types of medical interventions such
as keyhole neurosurgey or transluminal endoscopic surgery. These procedures involve insertion
of surgical instruments such as needles and endoscopes into human body through small
incision/ body cavity for biopsy and drug delivery.
Volunteers Are a Valuable Financial Resource. A
volunteer’s time is an important resource for many charities
and congregations, especially those that do not have
the money to hire labor to carry out certain tasks. Volunteer
time is comparable to a monetary donation. Independent
Sector, a national advocate for the nonprofit sector,
computes annually an equivalent average hourly wage
for a volunteer’s time. The calculation is derived from
the average hourly wage of nonagricultural workers plus
12 percent for fringe benefits. By this calculation, the
typical 2002 volunteer value was $16.