Posts tagged science.

therearekingsamongus:

gaming

ikenbot:

Video Game With Biofeedback Teaches Children to Curb Anger

Side Note: I find the application of these studies very important especially when it comes to early education. I feel like the future to how we control and use our emotions to benefit rather than be our dismay lies in studies like these that aim to train our brains to regulate and control emotions like any system would monitor itself for peak efficiency. If we can use the applicability and entertainment in video games to make children who have severe anger problems a thing of the past we could be tackling a major problem within early childhood, education and or both. A child with controlled emotions is more likely to focus naturally on the tasks at hand without the need of drugs that may or may not just worsen his or her situation and put them early on into drug reliance.

Children with serious anger problems can be helped by a video game that helps them learn how to regulate their emotions, according to a new study.

Image: Young Spock inside a Vulcan virtual reality educational system Credit: Star Trek (2009)

Noticing that children with anger control problems are often uninterested in psychotherapy, but eager to play video games, Jason Kahn, Ph.D., and Joseph Gonzalez-Heydrich, M.D., at Boston Children’s Hospital developed “RAGE Control,” a video game with a biofeedback component that helps children practice emotional control skills.

The game involves shooting at enemy spaceships while avoiding shooting at friendly ones. As children play, a monitor on one finger tracks their heart rate and displays it on the computer screen. When the heart rate goes above a certain level, players lose their ability to shoot at the enemy spaceships. To improve their game, they must learn to keep calm, the researchers explain.

“The connections between the brain’s executive control centers and emotional centers are weak in people with severe anger problems,” said Gonzalez-Heydrich, chief of Psychopharmacology at Boston Children’s and senior investigator on the study. “However, to succeed at RAGE Control, players have to learn to use these centers at the same time to score points.”

The study, led by first author Peter Ducharme, M.S.W., a clinical social worker at Boston Children’s, compared two groups of 9- to 17-year-old children admitted to the hospital’s Psychiatry Inpatient Service who had high levels of anger. To qualify for the study, the children had to have a normal IQ and not need a medication change during the five-day study period.

One group, with 19 children, received standard treatments for anger, including cognitive-behavioral therapy, presentation of relaxation techniques and social skills training for five consecutive business days. The second group, with 18 children, got these same treatments, but spent the last 15 minutes of their psychotherapy session playing RAGE Control.

After five sessions, the gamers were significantly better at keeping their heart rate down, the researchers report. They also showed clinically significant decreases in anger scores on the State Trait Anger Expression Inventory-Child and Adolescent (STAXI-CA). Specific decreases were seen in the intensity of anger at a particular time, the frequency of angry feelings over time, and the expression of anger towards others or objects. The gamers also had a decrease in suppressed, internalized anger, according to the researchers.

Full Article

(via proletarianinstinct)

#science  

laboratoryequipment:

Nanoflowers Promise Energy Storage, Solar Cells

Researchers from North Carolina State Univ. have created flower-like structures out of germanium sulfide (GeS) – a semiconductor material – that have extremely thin petals with an enormous surface area. The GeS flower holds promise for next-generation energy storage devices and solar cells.

“Creating these GeS nanoflowers is exciting because it gives us a huge surface area in a small amount of space,” says Linyou Cao, an assistant professor of materials science and engineering at NC State and co-author of a paper on the research. “This could significantly increase the capacity of lithium-ion batteries, for instance, since the thinner structure with larger surface area can hold more lithium ions. By the same token, this GeS flower structure could lead to increased capacity for supercapacitors, which are also used for energy storage.”

Read more: http://www.laboratoryequipment.com/news/2012/10/nanoflowers-promise-energy-storage-solar-cells

(via dirgefunkrecords)

#science  

realcleverscience:

atheism-:

Bioengineers have made an artificial jellyfish using silicone and muscle cells from a rat’s heart. The synthetic creature, dubbed a medusoid, looks like a flower with eight petals. When placed in an electric field, it pulses and swims exactly like its living counterpart.

“Morphologically, we’ve built a jellyfish. Functionally, we’ve built a jellyfish. Genetically, this thing is a rat,” says Kit Parker, a biophysicist at Harvard University in Cambridge, Massachusetts, who led the work. The project is described today in Nature Biotechnology.

Parker’s lab works on creating artificial models of human heart tissues for regenerating organs and testing drugs, and the team built the medusoid as a way of understanding the “fundamental laws of muscular pumps”. It is an engineer’s approach to basic science: prove that you have identified the right principles by building something with them.

In 2007, Parker was searching for new ways of studying muscular pumps when he visited the New England Aquarium in Boston, Massachusetts. “I saw the jellyfish display and it hit me like a thunderbolt,” he says. “I thought: I know I can build that.” To do so, he recruited John Dabiri, a bioengineer who studies biological propulsion at the California Institute of Technology (Caltech) in Pasadena. “I grabbed him and said, ‘John, I think I can build a jellyfish.’ He didn’t know who I was, but I was pretty excited and waving my arms, and I think he was afraid to say no.”

Janna Nawroth, a graduate student at Caltech who performed most of the experiments, began by mapping every cell in the bodies of juvenile moon jellies (Aurelia aurita) to understand how they swim. A moon jelly’s bell consists of a single layer of muscle, with fibres that are tightly aligned around a central ring and along eight spokes.

To make the bell beat downwards, electrical signals spread through the muscle in a smooth wave, “like when you drop a pebble in water”, says Parker. “It’s exactly like what you see in the heart. My bet is that to get a muscular pump, the electrical activity has got to spread as a wavefront.”

Nawroth created a structure with the same properties by growing a single layer of rat heart muscle on a patterned sheet of polydimethylsiloxane. When an electric field is applied across the structure, the muscle contracts rapidly, compressing the medusoid and mimicking a jellyfish’s power stroke. The elastic silicone then pulls the medusoid back to its original flat shape, ready for the next stroke. 

When placed between two electrodes in water, the medusoid swam like the real thing. It even produced water currents similar to those that wash food particles into jellyfish’s mouths. “We thought if we’re really good at this, we’re going to recreate that vortex, and we did,” says Parker. “We took a rat apart and rebuilt it as a jellyfish.”

“I think that this is terrific,” says Joseph Vacanti, a tissue engineer at Massachusetts General Hospital in Boston. “It is a powerful demonstration of engineering chimaeric systems of living and non-living components.”

Parker says his team is taking synthetic biology to a new level. “Usually when we talk about synthetic life forms, somebody will take a living cell and put new genes in. We built an animal. It’s not just about genes, but about morphology and function.”

The team now plans to build a medusoid using human heart cells. The researchers have filed a patent to use their design, or something similar, as a platform for testing drugs. “You’ve got a heart drug?” says Parker. “You let me put it on my jellyfish, and I’ll tell you if it can improve the pumping.”

They also hope to reverse-engineer other marine life forms, says Parker. “We’ve got a whole tank of stuff in there, and an octopus on order.”

This is pretty mindblowing.

….. woah

#creepy  #science  #playing god  #?  #r