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Science News for May 1, 2019


Genes hold the key to birthweight

A large-scale international collaboration has identified 190 genetic links to birth weight, with two-thirds discovered for the first time. Research found that a baby's genes play a substantial role in determining their birth weight, while also influencing factors in their intrauterine environment.

SourceUniversity of Queensland·JournalNature Genetics·DateMay 1, 2019

Mental disorders more common in people who live alone

Research found that living alone is positively associated with common mental disorders across all ages and sexes. The prevalence of people living alone was linked to an increased risk of mental health issues, with loneliness explaining 84% of the association.

SourcePLOS·JournalPLOS ONE·DateMay 1, 2019

The mystery behind cleft palate and lips: Study shines a light on genetic factors

Researchers have identified over 100 new genes that could contribute to the development of cleft lip and palate (CL/P), a condition affecting 1 in 700 live-born babies. The study suggests that genetic variants near these genes are regulated by 'enhancers' in the genome, which play a crucial role in maintaining proper cell identity.

Half a face enough for recognition technology

Researchers from the University of Bradford have developed a facial recognition system that can accurately identify individuals even when only half or three-quarters of their face is visible. The study found that the bottom half of the face, eyes, and nose were most useful for recognition.

SourceUniversity of Bradford·JournalFuture Generation Computer Systems·DateMay 1, 2019

Researchers grow cells in 'paper organs'

Researchers have successfully grown 3D paper organs with artificial blood vessels that can be populated with cells, providing a more complex structure than traditional 2D cell cultures. The paper organs can mimic the architecture of real tissues, influencing how cells grow and respond to external stimuli.

SourceAmerican Chemical Society·JournalNano Letters·DateMay 1, 2019

Do additives help the soil?

A UBC researcher's study found that commercial bio-fertilizers may not improve soil quality or crop yields, raising concerns about environmental consequences. The study also highlights the need for more knowledge on the impact of these inoculants on the land and potential invasive species risks.

SourceUniversity of British Columbia Okanagan campus·JournalThe Science of The Total Environment·DateMay 1, 2019

Why do birds typically live longer than mammals?

Researchers found that birds have significantly lower cellular rates of energy use and antioxidant capacity compared to mammals. This may contribute to their longer lifespans, as oxidative stress is a major factor in aging. The study's authors plan to investigate the link between oxidative stress and immune defenses further.

SourceHamilton College·JournalIntegrative and Comparative Biology·DateMay 1, 2019

Storage beyond the cloud

Researchers at Harvard University have developed a new storage method that uses molecules to encode information, potentially preserving the contents of the New York Public Library in a teaspoon of protein. The approach uses oligopeptides and mass spectrometry to store data in a stable and low-energy format.

SourceHarvard University·JournalACS Central Science·DateMay 1, 2019

Modulating a hormonal pathway improves social function in 2 clinical trials of adults and children with autism spectrum disorder

Two clinical trials found that modulating the vasopressin hormone's biological pathway enhanced social functioning in adults and children with ASD. The studies showed improvements in social behavior, adaptive skills, and reduced anxiety symptoms in treated individuals.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience Translational Medicine·DateMay 1, 2019

Diving deep into water and energy trade-offs

Two papers by Michigan State University scientists introduce a new framework to analyze the complex interactions between global water and energy trade. The nexus approach reveals unexpected impacts, including provinces losing one resource while gaining another, and virtual energy transfers driving inequality.

SourceMichigan State University·JournalThe Science of The Total Environment·DateMay 1, 2019

Lure of the 'loot box' looks a lot like gambling

A new study by University of British Columbia researchers found a correlation between excessive engagement with loot boxes and measures of problem gambling, but not problem video gaming. Loot box use was associated with risky gambling behaviours, suggesting that the feature may be contributing to gambling-like problems in gamers.

SourceUniversity of British Columbia·JournalAddictive Behaviors·DateMay 1, 2019

New clues to coastal erosion

A new physical mechanism erodes seabed sediment at depths up to 20 meters, adding nutrients stirred by breaking surface waves. This process complements littoral drift and has significant implications for coastal sediment management practices like dredging.

SourceFlinders University·JournalOcean Dynamics·DateMay 1, 2019

A new vision for neuroscience

Researchers at Harvard University have developed a new tool that records and controls neural activity in real-time using genetically encoded voltage indicators. This breakthrough enables the study of complex behaviors and neural interactions with unprecedented clarity.

SourceHarvard University·JournalNature·DateMay 1, 2019

Shrink films get a grip (video)

Researchers repurposed shrink films to make strong grippers that can encapsulate materials or be incorporated into soft robotics. The grippers were made by patterned black ink onto polystyrene sheets, which then wrapped around objects to grip them.

SourceAmerican Chemical Society·JournalACS Applied Polymer Materials·DateMay 1, 2019

The sicker the better

Research found that nematode-infected horned passalus beetles process wood 15% faster than uninfected ones, leading to increased decomposition rates. The parasites are beneficial to the forest ecosystem, enabling the beetles to provide a more effective service

SourceUniversity of Georgia·JournalBiology Letters·DateMay 1, 2019