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Category: biological – Page 167

A collaboration between McMaster and Harvard researchers has generated a new platform in which light beams communicate with one another through solid matter, establishing the foundation to explore a new form of computing.

Their work is described in a paper published today in the Proceedings of the National Academy of Sciences.

Kalaichelvi Saravanamuttu, an associate professor of Chemistry and Chemical Biology at McMaster, explains that the technology brings together a form of hyrdrogel developed by the Harvard team with manipulation and measurement techniques performed in her lab, which specializes in the that respond to light.

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O.o.

While eating takeout one day, University of Chicago scientists Bozhi Tian and Yin Fang started thinking about the noodles—specifically, their elasticity. A specialty of Xi’an, Tian’s hometown in China, is wheat noodles stretched by hand until they become chewy—strong and elastic. Why, the two materials scientists wondered, didn’t they get thin and weak instead?

They started experimenting, ordering pounds and pounds of noodles from the restaurant. “They got very suspicious,” Fang said. “I think they thought we wanted to steal their secrets to open a rival restaurant.”

But what they were preparing was a recipe for —that could much more closely mimic biological skin and than existing technology.

Continue reading “Breakthrough creates tough material able to stretch, heal and defend itself” | >

Experiences early in life have an impact on the brain’s biological and functional development, shows a new study by a team of neuroscientists. Its findings, which centered on changes in mice and rats, reveal how learning and memory abilities may vary, depending on the nature of individual experiences in early life.

“The implications of this are many, including environmental influences on mental health, the role of education, the significance of poverty, and the impact of social settings,” says Cristina Alberini, a professor in New York University’s Center for Neural Science and the senior author of the paper, which appears in the journal Nature Communications.

“These results also offer promise for potential therapeutic interventions,” add Alberini and Benjamin Bessières, an NYU postdoctoral researcher and the paper’s co-lead author. “By identifying critical time periods for brain development, they provide an indicator of when pharmaceutical, behavioral or other type of interventions may be most beneficial.”

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Buildings with this concrete can—in regions with a calm mediterranean climate—absorb CO2 and release oxygen with micro-algae and the other “pigmented microorganisms” that coat it. These vertical gardens boast aesthetic appeal, but the biological concrete’s beauty also lies in its clever design.

3_Moss growing concrete CO2

The concrete works in layers. The top layer absorbs and stores rainwater and grows the microorganisms underneath. A final layer of the concrete repels water to keep the internal structure safe. The top can also absorb solar radiation, which insulates the building and regulates temperatures for the people inside.

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Godzilla is back in cinemas, and he’s big. Since his first awakening the radioactive, fire-spewing kaiju has grown 60 metres and put on more than 150 000 tons. Godzilla is now 30 storeys tall and weighs as much as a cruise ship. s biology. If Godzilla were real, he would be an incredible specimen.

Weight problems Godzilla would weigh 146 000 tons, according to our keen analysis of the 2014 Godzilla toy and a formula developed by palaeontologists to work out the mass of bipedal dinosaurs.

0,00016 x (circumference of femur in millimetres) 2,73 = mass in kilograms 0,00016 x (Godzilla’s femur: 24 200 mm) 2,73 = 148 571 645 kilograms, or nearly 150 000 tons.

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