Tiny pieces of genetic material called microRNA (miRNA), better known for its roles in cancer, could be a key to unlocking the secrets of how HIV, the AIDS virus, evades detection, hiding in the immune system. Researchers at Jefferson Medical College in Philadelphia have shown that when an individual infected with HIV receives a powerful cocktail of antiviral agents called HAART (highly active antiretroviral therapy), the virus calls on miRNAs to help it remain quiet and practically undetectable, temporarily shutting down its ability to replicate and infect.

The work may also have implications for new treatment strategies against the virus.

Countries where the main religion is Protestant Christianity have higher employment rates than those where other religions are dominant, according to University of Bath research published in the American Journal of Economics and Sociology.

These countries, which include the USA, the UK and Nordic countries such as Denmark, Sweden and Norway, have employment rates that are approximately six percentage points higher than countries where other religions are practiced by the largest proportion of the population.

The study, which is based on data from 80 countries, also showed that female employment rates are approximately 11 percentage points higher in Protestant countries.

When a child is distressed, anxious, or angry, mom and dad don’t have to respond in the same way. A new study finds that when both parents are supportive, they may shield the child from handling negative emotions.

The researchers suggest that when one parent provides little support and the other provides more support—for example, if a child becomes anxious or upset about losing a favorite toy, one parent may intervene by hugging the child and helping think of places to look for the toy, while the other parent hangs back and is available if needed—the child ends up with reduced conflicts with friends and a better understanding of negative emotions.

Determining the genetic profile of a particular lung tumor can help clinicians make the crucial decision about which chemotherapy treatment to try first.

A new study led by researchers from the Duke University Comprehensive Cancer Center and the Duke Institute for Genome Sciences & Policy (IGSP) found distinct differences in the susceptibility different tumors have to widely used chemotherapy drugs.

“We were able to predict which tumors would be most likely to respond to standard first-line therapy and which would respond better to what has traditionally been a second-line therapy, based on gene expression profiling,” said David Hsu, M.D., Ph.D. an oncologist at Duke and lead author on the publication. “This represents a big step in the move toward individualized medicine.

Materials researchers at the National Institute of Standards and Technology (NIST), together with colleagues from IBM and the Massachusetts Institute of Technology, have pushed the measurement of thin films to the edge—literally—to produce the first data on how the edges of metallic thin films contribute to their magnetic properties. Their results may impact the design of future nanoscale electronics.

Ferromagnetic thin films of metallic materials—ranging in thickness from fractions of a nanometer to several micrometers—are layered in patterns on a substrate (such as silicon) during the manufacture of many microelectronic devices that use magnetic properties, such as computer hard drives.

Researchers have long debated whether or not language and music depend on common processes in the mind. Now, researchers at Georgetown University Medical Center have found evidence that the processing of music and language do indeed depend on some of the same brain systems.

Their findings are the first to suggest that two different aspects of both music and language depend on the same two memory systems in the brain. One brain system, based in the temporal lobes, helps humans memorize information in both language and music— for example, words and meanings in language and familiar melodies in music.