If your child spends their evening beating up hookers in Grand Theft Auto, there is a silver lining - they are less likely to actually beat up hookers in real life. At least surveys by humanities scholars say so.

This is good knowledge. There has long been a fear that advertising of McDonald's Happy Meals and cigarettes and violence in media might actually lead to people buying more junk food or smoking or being violent, but the new study led by Matthew Grizzard, PhD, assistant professor in the University at Buffalo Department of Communication, and co-authored by researchers at Michigan State University and the University of Texas, Austin, finds just the opposite: people who engage in bad behavior are less likely to do it because they have greater sensitivity.

A new study has found that palladium-gold nanoparticles are excellent catalysts for cleaning polluted water - and can even convert biodiesel waste into valuable chemicals.

In dozens of studies, Rice University chemical engineer Michael Wong and colleagues have focused on using the tiny metallic specks to break down carcinogenic and toxic compounds and have now examined whether palladium-gold nanocatalysts could convert glycerol, a waste byproduct of biodiesel production, into high-value chemicals.

Signals from the immune system that help repel common parasites  like tapeworms, roundworms and other helminths can inadvertently cause a dormant viral infection to become active again, which may explain how complex interactions between infectious agents and the immune system have the potential to affect illness.

The scientists identified specific signals in mice that mobilize the immune system to fight parasites that infect nearly a quarter of all humans. The same signals cause an inactive herpes virus infection in the mice to begin replicating again.

The researchers speculated that the virus might be taking advantage of the host response to the worm infection, multiplying and spreading when the immune system's attention is fixed on fighting the worms.

You wouldn't think that mechanical force, like kicking a ball in the World Cup or embossing letters on a credit card, could process nanoparticles more subtly than the most advanced chemistry but a current paper in Nature Communications describes a now patented method to use simple pressure — a kind of high-tech embossing — to produce finer and cleaner results in forming silver nanostructures than do chemical methods.

All without harmful byproducts to dispose of.

How bad is western music? Chimps in a study published by the Journal of Experimental Psychology: Animal Learning and Cognition preferred silence - yet they liked music from Africa.

And music from India. What is the reason for that?

Music in the east is structured differently, notation is everything from Swara Kalana to Chôngganbo, but African music is not all that different. Why would chimps like it more? It may be tempo. The current findings say this may be the first to show that they display a preference for particular rhythmic patterns. If the authors aren't sure, none of the rest of the world can be.

You can't coddle kids or their brains too much. Without a little bit of frustration and stress, they would never learn how to talk or read or do science. Without some physical stress, we would all be crawling from place to place.

Stress helps us learn, adapt and cope. But too much stress, such as from neglect or abuse, can be toxic. A team of University of Wisconsin-Madison researchers writing in Biological Psychiatry recently showed these kinds of stressors, experienced in early life, might be changing the parts of developing children's brains responsible for learning, memory and the processing of stress and emotion.

Scientists working to make gene therapy a reality say they have figured out how to bypass a blood stem cell's natural defenses and efficiently insert disease-fighting genes into the cell's genome.

The drug rapamycin, which is commonly used to slow cancer growth and prevent organ rejection, enables delivery of a therapeutic dose of genes to blood stem cells while preserving stem cell function. The findings in Blood could lead to more effective and affordable long-term treatments for blood cell disorders in which mutations in the DNA cause abnormal cell functions, such as in leukemia and sickle cell anemia.

Methane is a simple molecule, it consists of a carbon atom bound to four hydrogen atoms. 

But it is the key component in the natural gas that has led to lower CO2 emissions in America and due to that it is getting some attention in global warming that was denied it when the cultural focus regarded carbon dioxide as a magic bullet to control the climate. 

Rather than simplistic tales of it being a runaway problem, like in some claims, its status is more positive. It hasn't really gone up even with the boom in natural gas and it has a far shorter life than CO2. It is also a kind of metabolic currency in many ecosystems.

Chemists have constructed liquid crystals with optical properties that can be instantly and reversibly controlled by an external magnetic field and that paves the way for display applications using instantaneous and contactless nature of magnetic manipulation - like a poster that customizes based on the people around it.

Commercially available liquid crystals in electronic displays are composed of rod-like or plate-like molecules. When an electric field is applied, the molecules rotate and align themselves along the field direction, resulting in a rapid tuning of transmitted light.

About 450,000 (12 percent) of the 3.9 million babies born each year in the United States are premature. Thanks to modern medicine, the number of preterm infants who survive has also surged in middle income countries in Latin America, Asia, and Eastern Europe. 

In these parts of the world, rates of childhood blindness from retinopathy of prematurity (ROP) are estimated at 15 to 30 percent—compared to 13 percent in the United States. Some degree of  retinopathy of prematurity appears in more than half of all infants born at 30 weeks pregnancy or younger—a full-term pregnancy is 40 weeks—but only about 5 to 8 percent of cases become severe enough to require treatment.