Volume 115, Issue 15: View articles in the latest issue of PNAS. Click here to view selections in the latest issue america past and present volume 2 10th edition free pdf PNAS.

Researchers report evidence of the early spread of agriculture into central Anatolia. The National Academy of Sciences 155th Annual Meeting begins Saturday, April 28. Many events and scientific sessions will be webcast live. Recent flooding events highlight why flood-risk governance in the United States needs a major overhaul. They also suggest why the necessary refocus on shared responsibility will not be easy. Core Concept: Organoids have opened avenues into investigating numerous diseases.

But how well do they mimic the real thing? They’re rudimentary versions of their real-life counterparts, but with continued cell-culture method improvements, researchers hope to create larger and more elaborate models. The tattoos now in development carry real practical and medical import. But researchers agree that to gain widespread use the tattoos must also visually impress. Researchers estimate the risk of infectious disease transmission on board transcontinental airline flights. Researchers report early evidence of Maya animal management.

Aquatic environments constrain mammals’ body size to a greater extent than terrestrial environments, according to a study. Bridget Scanlon discusses the use of global hydrologic models for studying changes in water storage worldwide. A Note and Disclaimer are below. The Note: This great book should really be read by everyone. It is difficult to describe why it so great because it both teaches and inspires. You really just have to read it.

We think it is so good that it demands to be as accessible as possible. Once you’ve finished it, we’re sure you’ll agree. The disclaimer: This version is made from OCR. That is a fancy way of saying that we scanned in and coded over six hundred fifty pages. There will be a few small occasional errors: spelling mistakes, odd punctuation, and the like. If you see any, please contact us.