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Science News Archive December 2020 - Page 26


Page 26 of 39

Within a hair's breadth--forensic identification of single dyed hair strand now possible

Researchers at Tokyo University of Science developed a strategy to identify criminals from a single strand of hair, leveraging the composition of hair dye products. They employed surface-enhanced Raman spectroscopy (SERS) and X-ray fluorescence (XRF) analysis to distinguish between different dyes applied to individual strands of hog hair.

SourceTokyo University of Science·JournalAnalytical Sciences·DateDec 9, 2020

Less light, more trees assist migrating birds

A study found that urban tree canopy cover and reduced light pollution during migration seasons contribute to higher species richness. Conversely, higher levels of artificial light at night were associated with lower species counts, particularly during winter and summer.

SourceCornell University·JournalEnvironmental Pollution·DateDec 9, 2020

CO2 pricing & financial transfers: small changes can have a huge effect on climate equity

A new study published in Nature suggests that differentiated CO2 prices combined with moderate financial transfers between advanced and developing countries can efficiently achieve fair burden sharing while keeping overall costs in check. This approach mediates the trade-off between national sovereignty and economic efficiency.

New 'sea dragon' discovered off UK coastline

A new genus and species of ichthyosaur, Thalassodraco etchesi, has been discovered in the UK, measuring 2m in length and dating back to the Late Jurassic period. The specimen was found buried head-first in limestone, preserving its soft tissues and providing valuable insights into the biology of these marine reptiles.

SourceUniversity of Portsmouth·JournalPLOS ONE·DateDec 9, 2020

A new evolutionary clue

A University of Missouri researcher studied an island fox and its mainland relative to understand human evolution. The study found that the island fox's smaller body size was likely due to adapting to its new environment, not a disease.

SourceUniversity of Missouri-Columbia·JournalJournal of Human Evolution·DateDec 9, 2020

New program for African American couples leads to stronger relationships, improved health

A recent study found that a new program for African American couples can lead to stronger relationships and improved health outcomes. The program, Protecting Strong African American Families (ProSAAF), uses a cognitive behavioral approach to improve couple interaction patterns and ways of thinking.

Can sting rays and electric rays help us map the ocean floor?

Researchers at RIKEN Center for Biosystems Dynamics Research use electric rays and sting rays to create maps of the seabed, collecting data on ocean wildlife and resources. The method is cost-effective and has been shown to be accurate, with positioning errors within 10cm of existing seabed maps.

SourceRIKEN·JournalSN Applied Sciences·DateDec 9, 2020

Single-eye gene therapy improves vision in both eyes of patients with inherited eye disorder

A phase 3 clinical trial involving 37 patients showed sustainable improvements in vision after 96 weeks, suggesting the gene therapy could be a safe and effective treatment for Leber hereditary optic neuropathy. The treatment unexpectedly seemed to work in both eyes, with DNA from the vectors found in both treated and untreated eyes.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience Translational Medicine·DateDec 9, 2020