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Science News Archive February 2018 - Page 7


Page 7 of 36

Mom's immune system shapes baby's brain

A study published in JNeurosci found that a woman's immune system during pregnancy influences the development of her child's brain network, which may be linked to psychiatric disorders such as autism and schizophrenia. Higher maternal immune activation was also associated with improved cognitive ability in infants.

Rice U. sleuths find metal in 'metal-free' catalysts

Researchers at Rice University have found that graphene catalysts contain trace amounts of manganese, which activates the oxygen reduction reaction and improves fuel-cell efficiency. The study used inductively coupled plasma mass spectrometry to detect manganese atoms in samples made by the Rice lab.

SourceRice University·JournalCarbon·DateFeb 26, 2018

ACP calls on doctors to practice what they teach

The American College of Physicians recommends reinforcing formal curricula with hidden cultural lessons in medical education. This includes modeling empathy, encouraging reflection, and promoting learner and clinician wellness. The goal is to align positive hidden curricula with formal curricula and foster respect, inquiry, and honesty.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateFeb 26, 2018

Mechanism of diamond formation

Researchers discovered diamond formation from ankerite through spontaneous iron reduction, suggesting a possible mechanism for abundant diamond creation in Earth's lower mantle. The process occurs without melting at high pressures and temperatures, similar to those found in meteoritic impact zones.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateFeb 26, 2018

Humans changed the ecosystems of Central Africa more than 2,600 years ago

A team of scientists discovered that humans triggered the transformation of dense forests to savannahs in Central Africa around 2,600 years ago. The sudden change, known as the 'rainforest crisis,' was not caused by climate change but rather by human activities such as agriculture and population growth.

SourceGFZ GeoForschungsZentrum Potsdam, Helmholtz Centre·JournalProceedings of the National Academy of Sciences·DateFeb 26, 2018

Daffodils to fight against cancer

Researchers discovered that a natural alkaloid extracted from Daffodils, called haemanthamine, blocks the production of proteins by ribosomes in cancer cells, leading to their elimination. The study provides a molecular explanation for the anti-tumoral activity of Daffodils used in folk medicine.

SourceUniversité libre de Bruxelles·JournalStructure·DateFeb 26, 2018

Watch fat cells help heal a wound in a fly

Researchers found that fat body cells in Drosophila propel themselves forward towards wounds using a wave-like motion, effectively sealing them and preventing infection. The cells work together with immune cells to aid healing and increase antimicrobial peptide production.

SourceCell Press·JournalDevelopmental Cell·DateFeb 26, 2018

Clever coating opens door to smart windows

Researchers at RMIT University developed an ultra-thin coating that automatically regulates temperature in buildings, reducing energy consumption and emissions. The self-modifying coating can block heat during summer and retain heat inside when it's cold, leading to significant environmental benefits and financial savings.

SourceRMIT University·JournalScientific Reports·DateFeb 25, 2018

How cities heat up

Researchers at MIT have discovered that cities with grid-like street patterns tend to accumulate more heat than those with chaotic patterns, leading to increased urban heat islands and health risks. The study provides new insights into the impact of city design on heat buildup, offering potential solutions for urban planners.

SourceMassachusetts Institute of Technology·JournalPhysical Review Letters·DateFeb 23, 2018

Children's learning is not affected by repeated sick days with fever and infections

A register-based study covering 598,553 Danish children found that recurring less serious severe infections do not affect children's cognitive development or ability to complete primary and lower secondary school. In contrast, severe infections with hospitalisations were associated with a lower chance of completing 9th grade.

SourceAarhus University·JournalThe Pediatric Infectious Disease Journal·DateFeb 23, 2018

Why are there so many types of lizards?

An ASU study has shed light on the biodiversity of anole lizard family trees by comparing their genomes with those of other animals. The research found that genes involved in interbrain development, color vision, and hormones may contribute to species boundaries.

SourceArizona State University·JournalGenome Biology and Evolution·DateFeb 23, 2018