Researchers working in a high containment laboratory at the CDC in Atlanta, GA have discovered how the smallpox virus kills. In a study published in the FASEB Journal, the team says that the virus, now eradicated by vaccination, cripples the immune systems by attacking molecules made by our bodies to block viral replication.

 In a high containment laboratory at the Centers for Disease Control and Prevention in Atlanta, scientists produced the recombinant proteins from the variola virus and a similar virus that affects monkeys, causing monkeypox.  The researchers then showed that cells infected

Young people who want to be better appreciated and respected within their group are willing to be violent, says a new study that looked in depth at the social relationships between male and female teenagers, relational violence, and psycho-social adjustment factors such as loneliness and self-esteem.

Published recently in Psicothema,  the study focused on the relationship between relational violence between teenagers, their social adjustment and their reputation, in order to show how young people who long for high "reputation status" are more likely to use relational violence as a tool for achieving this objective.

 Teens who frequently listen to music filled with references to marijuana are more likely to use the drug than their counterparts with less exposure to such lyrics, according to a University of Pittsburgh School of Medicine study published online in the journal Addiction.

"Based on an analysis of survey data from 959 ninth-graders, we found that students who listen to music with the most references to marijuana are almost twice as likely to have used the drug than their peers whose musical tastes favor songs less focused on substance use, even after controlling for confounding factors," said Brian Primack, M.D.,Ed.M., M.S., lead author of the study and assistant professor of medicine and pediatrics at Pitt's School of Medicine.

Aside from Earth, Saturn's largest moon Titan looks to be the only place in the solar system with copious quantities of liquid (largely, liquid methane and ethane) sitting on its surface. But that's not the only similarity our home and Titan share. A team of planetary astronomers recently announced that the two share yet another feature, which is inextricably linked with that surface liquid: common fog.

The team discussed their findings in a recent paper published in The Astrophysical Journal Letters as well as in a presentation at the American Geophysical Union's 2009 Fall Meeting in San Francisco.

A new study featured online this week in the Proceedings of the National Academy of Sciences suggests that depression patients are unable to sustain activity in brain areas related to positive emotion. The authors say The study challenges previous notions that individuals with depression show less brain activity in areas associated with positive emotion. Instead, the new data suggest similar initial levels of activity, but an inability to sustain them over time.

During the study, 27 depressed patients and 19 control participants were presented with visual images intended to evoke either a positive or a negative emotional response. While viewing these images, participants were instructed to use cognitive strategies to increase,

In order to benefit from their natural resources, states need fewer regulations, lower taxes, and stronger private property rights, according to a new study by a Florida State University economist. The study offers an empirical analysis weighing the economic growth rates of resource-dependent states against the Economic Freedom of North America index (which operates on a scale of 1-10, with 10 being the freest) to determine the level of economic freedom required for states to benefit from natural resource development.

Research suggests that in regions lacking policies consistent with free markets, private-property rights and a stable and fair legal system, natural resource dependence can weaken economic growth — a phenomenon known as the "resource curse."