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Initial results show pregnant women mount strong immune response to 1 dose of 2009 H1N1 vaccine

Healthy pregnant women mount a robust immune response following just one dose of 2009 H1N1 influenza vaccine, according to initial results from an ongoing clinical trial sponsored by the National I

Spider mite predators serve as biological control

The control of spider mites, which damage tree leaves, reduce fruit quality and cost growers millions of dollars in the use of pesticide and oil spraying, is being biologically controlled in Pennsy

There's a speed limit to the pace of evolution, Penn biologists say

PHILADELPHIA ?- Researchers at the University of Pennsylvania have developed a theoretical model that informs the understanding of evolution and determines how quickly an organism will evolve using

Inhibitor of heat shock protein is a potential anticancer drug, Penn study finds

PHILADELPHIA - Like yoga for office drones, cells do have coping strategies for stress.

Pitt-led researchers create nanoparticle coating to prevent freezing rain buildup

PITTSBURGH -- Preventing the havoc wrought when freezing rain collects on roads, power lines, and aircrafts could be only a few nanometers away.

North Carolina sea levels rising 3 times faster than in previous 500 years, Penn study says

PHILADELPHIA ?- An international team of environmental scientists led by the University of Pennsylvania has shown that sea-level rise, at least in North Carolina, is accelerating.

High-definition colonoscopy detects more polyps, Mayo Clinic researchers say

High-definition (HD) colonoscopy is much more sensitive than standard colonoscopy in finding polyps that could morph into cancer, say researchers at the Mayo Clinic campus in Florida.

Fighting sleep, Penn researchers reverse the cognitive impairment caused by sleep deprivation

PHILADELPHIA ?- A research collaboration led by biologists and neuroscientists at the University of Pennsylvania has found a molecular pathway in the brain that is the cause of cognitive impairment

Installed cost of solar photovoltaic systems in the US fell in 2008

Researchers at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) released a new study on the installed costs of solar photovoltaic (PV) power systems in the U.S., showing that the average cost of these systems declined by more than 30 percent from 1998 to 2008. Within the last year of this period, costs fell by more than 4 percent.

Penn team uses self-assembly to make molecule-sized particles with patches of charge

PHILADELPHIA ?- Physicists, chemists and engineers at the University of Pennsylvania have demonstrated a novel method for the controlled formation of patchy particles, using charged, self-assembling molecules that may one day serve as drug-delivery vehicles to combat disease and perhaps be used in small batteries that store and release charge.

IOM recommends new nutritional requirements for school meal programs

WASHINGTON -- The National School Lunch Program and the School Breakfast Program should adopt a new set of nutrient targets and standards for menu planning, says a new report from the Institute of Medicine. The recommended targets and standards would update and improve the programs' abilities to meet children's nutritional needs and foster healthy eating habits.

Are humans still evolving? Absolutely, says a new analysis of a long-term survey of human health

Durham, NC -- Although advances in medical care have improved standards of living over time, humans aren't entirely sheltered from the forces of natural selection, a new study shows.

News in red and blue: Messages about social factors and health can backfire

ANN ARBOR, Mich. -- Here's a health idea that Democrats and Republicans agree on: when given information on the genetic factors that cause diabetes, both parties equally supported public health policies to prevent the disease.

Loss of tumor-suppressor and DNA-maintenance proteins causes tissue demise

PHILADELPHIA - A study published in the October issue of Nature Genetics demonstrates that loss of the tumor-suppressor protein p53, coupled with elimination of the DNA-maintenance protein ATR, severely disrupts tissue maintenance in mice. As a result, tissues deteriorate rapidly, which is generally fatal in these animals.



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