Penn and Genographic Project Scientists Illuminate the Ancient History of Circumarctic Peoples

An international team of researchers has discovered how adding trace amounts of water can tremendously speed up chemical reactions-such as hydrogenation and hydrogenolysis-in which hydrogen is one of the reactants, or starting materials.

Imagine reading an entire book, but then realizing that your glasses did not allow you to distinguish “g” from “q.” What details did you miss? - Geneticists faced a similar problem with the recent discovery of a “sixth nucleotide” in the DNA alphabet.

Targeted drug delivery is one of the more enticing applications of nanotechnology; by designing pharmaceuticals on an atomic scale, engineers hope to get them attacking diseases with newfound precision and efficiency.

Researchers at UC San Diego used experimental results and modeling studies to discover that the human copper transporter protein forms a trimer (purple, aqua, and red) in a cell's membrane, with one end (top) extending outside the cell and the other end (bottom) extending into the cell's cytoplasm.

One-letter switches in the DNA code occur much more frequently in human genomes than anticipated, but are often only found in one or a few individuals.

A new study published by researchers at the Perelman School of Medicine at the University of Pennsylvania , the Broad Institute, and Massachusetts General Hospital, challenges the conventional concept that raising a person's HDL levels (good cholesterol) will always help lower their risk of a heart attack.

Continued research into ‘brain gain' shows 30- to 49-year-olds migrating to rural areas - MINNEAPOLIS / ST. PAUL (05/16/2012) —Rural Minnesota continued to attract new residents aged 30 to 49 between 2000 and 2010, according to a new study of U.S. Census data from University of Minnesota Extension.

ANN ARBOR, Mich. - Returning extra medicine to the pharmacy for disposal might not be worth the extra time, money or greenhouse gas emissions, according to a University of Michigan study that is the first to look at the net effects of so-called take-back programs.