PHILADELPHIA — Though churning smokestacks, cud-chewing cows and gasoline-burning vehicles are contributing constantly to greenhouse gas emissions, there are also many processes that do the reverse, pulling molecules like carbon dioxide out of the atmosphere. One of these is chemical weathering, which occurs when rock turns into soil. Carbon dioxide molecules and rain combine to dissolve rock, and the weathering products, including sediment, eventually make their way through waterways to the ocean where some become trapped on the ocean bottom and in coral reefs and seashells.
Pablo Tebas of the Perelman School of Medicine is highlighted for leading research that supports high-dose flu vaccine for people with HIV.
Douglas Smith of the Perelman School of Medicine comments on brain-injury research.
PHILADELPHIA — Directed assembly is a growing field of research in nanotechnology in which scientists and engineers aim to manufacture structures on the smallest scales without having to individually manipulate each component. Rather, they set out precisely defined starting conditions and let the physics and chemistry that govern those components do the rest.
Penn’s Field Center for Children’s Policy, Practice & Research Works To Change Child Protection Laws
A lot can change in a year.
One year ago, Pennsylvania’s General Assembly established a Task Force on Child Protection to review child-abuse-reporting procedures and laws. In November, the Task Force issued a 400-page report outlining its proposal for revisions to the child abuse-reporting laws in Pennsylvania.
PHILADELPHIA — Calpain, a calcium-regulated enzyme, is essential to a host of cellular processes, but can cause severe problems in its overactivated state. It has been implicated as a factor in muscular dystrophy, AIDS, Alzheimer's disease, multiple sclerosis, and cancer. As such, finding and exploiting calpain inhibitors is an important area of research.
PHILADELPHIA – Nearly half of the 700,000 cancer patients who undergo surgical removal of a primary tumor each year suffer a recurrence of their disease at some point, and many of those patients will eventually die from their disease. The traditional view of recurrent tumors is that they are resistant to therapy because they’ve acquired additional genetic mutations that make them more aggressive and impervious to drugs.
La’Toya Latney’s grandmother has a photo from when Latney was about 5 years old. In it, she is sitting in front of the television, transfixed by a nature program on grizzly bears hunting salmon swimming upstream.
“At that time she said she knew I was going to be a veterinarian, so it’s been a long time coming for me,” says Latney.