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Science News Archive 2018 - Page 271


Page 271 of 473

African-Americans still disproportionately affected by HIV

Despite recent drops in HIV diagnoses across all US populations, African-Americans continue to be overrepresented among those diagnosed with HIV. The disparity has worsened, with Black males being 8.4 times more likely to be diagnosed than whites.

SourceSpringer·JournalJournal of Racial and Ethnic Health Disparities·DateJun 5, 2018

Blast from the past

Researchers analyzed data from the MiniBooNE experiment and found thousands of neutrino-nucleus collisions with the same energy, shedding light on neutrino interactions with matter. The discovery could help solve long-standing problems in experimental design and potentially reveal new physics processes.

SourceDOE/Argonne National Laboratory·JournalPhysical Review Letters·DateJun 5, 2018

The Lancet Diabetes and Endocrinology: Job strain linked to increased risk of premature death for men with cardiometabolic disease

An observational study tracking over 100000 men and women found that job strain is associated with a higher risk of premature death in men with coronary heart disease, stroke, or diabetes. Despite achieving treatment targets, men experiencing job strain had a 68% greater risk of death compared to those with no job strain.

SourceThe Lancet·JournalThe Lancet Diabetes & Endocrinology·DateJun 5, 2018

Invasive species of coral boasts amazing capacity for regeneration

Researchers in Brazil have discovered that sun coral can regenerate at a faster rate as water temperature increases, making it a formidable invasive species. The study's findings suggest that the genus Tubastraea, which comprises seven species, including two invasive ones, can thrive in various marine environments.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalJournal of Experimental Marine Biology and Ecology·DateJun 5, 2018

More detailed data on thermal conditions of Arctic ground

Researchers from the University of Helsinki and University of Oulu have developed a new model to forecast Arctic ground temperatures, revealing significant changes in permafrost occurrence. The study predicts that areas favourable to permafrost will shrink by over one-third by 2050 under worst-case climate change scenarios.

SourceUniversity of Helsinki·JournalGeophysical Research Letters·DateJun 5, 2018

Unzipping graphene nanotubes into nanoribbons

Researchers have developed a method to analyze electron flow in graphene nanoribbons using a simplified physics model. This approach uses a matching method to calculate transmission properties of electrons through the junction.

SourceSpringer·JournalThe European Physical Journal B·DateJun 5, 2018

Neurons ripple while brains rest to lock in memories

Researchers from Rice University and Michigan Medicine developed a tool to analyze brain waves during periods of rest. They found that these ripples can be used to reconstruct memories of an environment, even when the animals were not actively exploring. The study provides new insights into how brains sort and store information.

Surprising recovery of red spruce shows value of Clean Air Act

A new study found that red spruce tree growth has increased by over 75% since 2001, with reduced pollution and warmer winter temperatures likely contributing to the resurgence. The research suggests that the Clean Air Act is working to enhance conditions for red spruce, but future changes in climate may impact their recovery.

SourceUniversity of Vermont·JournalThe Science of The Total Environment·DateJun 5, 2018

Swimming without an engine

Researchers at ETH Zurich have developed a new propulsion concept that exploits water temperature for swimming robots, eliminating the need for engines or power supplies. The robots use bistable propulsion elements triggered by shape memory polymer strips to propel forward.

SourceETH Zurich·JournalProceedings of the National Academy of Sciences·DateJun 5, 2018

UCI scientists analyze first direct images of dissolved organic carbon from the ocean

A team of scientists has obtained direct images of dissolved organic carbon molecules from the ocean using atomic force microscopy. The visualization provides clues about their persistence in the marine environment and sheds light on the cycling of carbon in oceans, helping better understand the overall health of marine environments.

SourceUniversity of California - Irvine·JournalGeophysical Research Letters·DateJun 5, 2018

Rigorous study finds widely used treatment for infection fails young cancer patients

A rigorous study found that ethanol-lock therapy, widely used to reduce bloodstream infections, was ineffective in preventing new or recurring infections in young cancer patients with central venous catheters. The treatment was associated with increased complications, including catheter blockages and hospitalization.

SourceSt. Jude Children's Research Hospital·JournalThe Lancet Infectious Diseases·DateJun 5, 2018

A better statistical estimation of known Syrian war victims

Researchers from Rice University and Duke University developed a new method to accurately estimate the number of identified victims killed in the Syrian civil war. Using 'hashing with statistical estimation,' they produced real-time estimates with a lower margin of error than existing methods.

SourceRice University·JournalThe Annals of Applied Statistics·DateJun 5, 2018

Thousands of turtles netted off South America

New research reveals tens of thousands of sea turtles are caught each year by small-scale fishers off South America's Pacific coast, with over 16,000 killed. The study highlights Ecuador and Peru as key places to tackle this issue, which threatens critically endangered species like leatherbacks and hawksbills.

SourceUniversity of Exeter·JournalFisheries Research·DateJun 5, 2018