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Science News Archive June 2020 - Page 28


Page 28 of 48

Discovering how the brain works through computation

A team led by Christos Papadimitriou proposes a new computational system, the Assembly Calculus, that encompasses operations on assemblies of neurons involved in cognitive processes. The system is consistent with recent experimental results and has been demonstrated to be plausibly realizable at the level of neurons and synapses.

SourceColumbia University School of Engineering and Applied Science·JournalProceedings of the National Academy of Sciences·DateJun 11, 2020

Stiffer roadways could improve truck fuel efficiency

Researchers at MIT suggest that making pavements stiffer could improve truck fuel efficiency by reducing deflection and wear on the road. Adding synthetic fibers or adjusting aggregate sizing can increase stiffness, while switching to concrete pavements offers more durable solutions with equal or lower costs.

SourceMassachusetts Institute of Technology·JournalTransportation Research Record Journal of the Transportation Research Board·DateJun 11, 2020

Coal-tar-sealant major source of PAH contamination in Great Lakes tributaries

A study published in Environmental Toxicology and Chemistry has identified coal-tar-sealant as the primary source of polycyclic aromatic hydrocarbons (PAHs) in Great Lakes tributaries. The research highlights the need for further analysis to determine the potential effects of PAHs on aquatic life in these areas.

SourceSociety of Environmental Toxicology and Chemistry·JournalEnvironmental Toxicology and Chemistry·DateJun 11, 2020

Tropical disease in medieval Europe revises the history of a pathogen related to syphilis

A new study in Scientific Reports reveals that medieval European plague victims were infected with both the plague and a disease related to syphilis, called yaws. This discovery challenges the prevailing theory that syphilis originated in the New World and instead suggests that yaws may have contributed to the outbreak in Europe.

SourceMax Planck Institute of Geoanthropology·JournalScientific Reports·DateJun 11, 2020

Adding noise for completely secure communication

Researchers at the University of Basel have developed a new communication protocol that offers ultimate privacy protection by adding artificial noise to information about the crypto key. This allows for security guarantees even in cases where devices are unknown entities, overcoming a significant obstacle to experimental implementation.

SourceUniversity of Basel·JournalPhysical Review Letters·DateJun 11, 2020

Strength training benefits patients with cirrhosis

A new study from Aarhus University and Aarhus University Hospital found that three hours of weekly strength training combined with protein supplements can break the vicious circle of muscle loss in patients with cirrhosis. This leads to improved muscle strength, size, functional capacity, and quality of life.

SourceAarhus University·JournalClinical Gastroenterology and Hepatology·DateJun 11, 2020

Protecting eels protects freshwater biodiversity

A new study reveals that eels can serve as a key indicator of freshwater biodiversity, and their protection could greatly contribute to the recovery of ecosystems. The research found that two species of eel were widely distributed in Japanese rivers, serving as umbrella, indicator, and flagship species for conservation.

SourceKobe University·JournalScientific Reports·DateJun 11, 2020

A compound unlike any other

Researchers have discovered a compound, tartrolon E, that effectively kills multiple parasites responsible for various infections, including malaria, toxoplasmosis, and cryptosporidiosis. The compound is found in the gills of wood-eating clams and has shown promise in killing these parasites in vitro and in animal studies.

SourceWashington State University·JournalPLOS Pathogens·DateJun 11, 2020

'Matador' guppies trick predators

Researchers found that Trinidadian guppies use a unique strategy to evade pike cichlid attacks by turning their irises black, drawing attention to their head rather than body. Larger guppies were better at escaping using this method, potentially due to increased size allowing them to reverse the negative effect of reduced agility.

SourceUniversity of Exeter·JournalCurrent Biology·DateJun 11, 2020

A vitamin A analog may help treat diabetic retinopathy

A new study published in the American Journal of Pathology reports that a single dose of visual chromophore 9-cis-retinal improves visual function in diabetic mice by reducing oxidative stress and cell death. This treatment may represent a potential therapy for early diabetic retinopathy.

SourceElsevier·JournalAmerican Journal Of Pathology·DateJun 11, 2020

Plastic in the deep sea: Virtually unaltered after a quarter of a century

A study published in Scientific Reports reveals that plastic objects found in the deep sea, such as a plastic bag and curd box, show no signs of degradation after 25 years. The findings indicate that microbial communities on plastic surfaces differ from those in surrounding sediments, suggesting a potential impact on marine ecosystems.

Matrix imaging: An innovation for improving ultrasound resolution

Researchers have developed a new non-invasive ultrasound method that compensates for distortions in soft tissue structure, providing ideal resolution and contrast optimized for each pixel. This approach has applications in biomedical diagnosis, optical microscopy, and industrial material inspection.

SourceCNRS·JournalProceedings of the National Academy of Sciences·DateJun 11, 2020

Keep moving to prevent major mobility disability

A study found that older adults who engage in light physical activity and spread it throughout the day have a lower risk of developing major mobility disability. The researchers recommend building strength and balance first, then increasing moderate-to-vigorous intensity activity, and finally adding light activity.

SourceAmerican Geriatrics Society·JournalJournal of the American Geriatrics Society·DateJun 11, 2020

New insight into the Great Dying

A new study shows that the collapse of terrestrial ecosystems during the Permian-Triassic extinction, also known as the Great Dying, directly disrupted ocean chemistry. This finding highlights the importance of understanding inter-connectedness of ecosystems in the face of environmental challenges.

SourceUniversity of Leeds·JournalNature Communications·DateJun 11, 2020

A breakthrough in developing multi-watt terahertz lasers

Researchers at Lehigh University developed a new phase-locking technique to achieve record-high output power for terahertz lasers, resulting in the highest radiative efficiency for any single-wavelength semiconductor quantum cascade laser. The breakthrough enables higher intensity and brightness, paving the way for applications in iden...

SourceLehigh University·JournalOptica·DateJun 11, 2020

Which businesses should be open?

A new MIT study examines 26 types of businesses, measuring their economic importance and risk. Banks perform the best in terms of economic impact and relatively low crowding, while liquor and tobacco stores rank poorly due to high crowds and limited economic importance.

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateJun 11, 2020

Crop pathogens 'remarkably adaptable'

Researchers found that many plant pathogens can specialise on particular temperatures or host plants, but also have wide temperature or host ranges. This study provides key insights into the co-evolution between pathogens and their hosts, allowing scientists to better understand where and when pathogens could strike next.

SourceUniversity of Exeter·JournalNature Communications·DateJun 11, 2020

Remixed mantle suggests early start of plate tectonics

Researchers have found evidence of a major 'stirring up' in the mantle layer around 3.2 billion years ago, indicating the start of global plate tectonic activity. This discovery has implications for our understanding of the evolution of life on Earth and the formation of mineral and energy resources.

SourceCurtin University·JournalScientific Reports·DateJun 11, 2020