VOLUME 100 | NUMBER 3 | May 2013
Neuroangiogenesis provides a basis for understanding dementias of aging
Sperm and eggs are ubiquitous and diverse. What drives them to diverge?
Healthy bacteria may be the cure to amphibian decline worldwide
Some Earth art uses natural materials while still showcasing the artist
Like so many bridges in the United States, this one has exceeded its planned life span
Nearly nondistorting fluorescent tags can capture growth patterns in bacterial cell walls
Things are looking tablet rasa
Bats and sea mammals hunt with sound, but prey use similar tools to evade them
Some curves are so convoluted they wiggle free of the one-dimensional world and fill up space
A single ring is easy—how about a chain or a trefoil?
The ubiquity of worlds beyond our Solar System confounds us
Whether data are numerical or narrative, removing them from their context represents an act of plagiarism
A review of Turing’s Cathedral: The Origins of the Digital Universe, by George Dyson
A brief review of em>Antarctica: An Intimate Portrait of a Mysterious Continent, by Gabrielle Walker, and Secrets of the Ice: Antarctica’s Clues to Climate, the Universe, and the Limits of Life, by Veronica Meduna
A brief review of Hubble's Universe: Greatest Discoveries and Latest Images, by Terence Dickinson
A brief review of Into Great Silence: A Memoir of Discovery and Loss among Vanishing Orcas, by Eva Saulitis
This issue marks the debut of our new, brief and occasional books section
Breeding perennial grains could improve food security and soil health
About once a month at Sigma Xi headquarters, we liven up the lunch hour with an American Scientist Pizza Lunch talk. In these informal lectures, scientists describe new research to nonscientists. The series is light on jargon but heavy on solid science. Each Pizza Lunch offers an in-depth look at its subject, whether it's bedbugs or the smart grid. Click below to read about and download these talks -- and to subscribe!
JSTOR, the online academic archive, now contains complete back issues of American Scientist from its inception in 1913 (as Sigma Xi Quarterly) through 2005.
The table of contents for each issue is freely available to all users; those with institutional access can read each complete issue.
View the full collection here.