Add BrightSurf on Google Email

Science News for July 29, 2020


Lead released in Notre Dame Cathedral fire detected in Parisian honey

Research from UBC's PCIGR analyzed honey samples from Parisian hives collected after the April 2019 Notre Dame Cathedral fire. Lead concentrations were up to four times higher than pre-fire levels, suggesting exposure to lead contamination. The study provides a unique method for tracing environmental pollution using honey.

SourceUniversity of British Columbia·JournalEnvironmental Science & Technology Letters·DateJul 29, 2020

Genetically similar fungi cause severe infections in different hospitals

Researchers analyzed 884 fungal samples from 16 hospitals worldwide to identify clusters of genetically identical strains, suggesting the presence of more virulent and drug-resistant varieties. The study highlights the importance of monitoring hospital infection control protocols and finding effective therapies to combat Candidemia.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalFrontiers in Cellular and Infection Microbiology·DateJul 29, 2020

Healing an Achilles' heel of quantum entanglement

Researchers have developed a new method to calculate the exact entanglement cost of a given quantum state, allowing for more precise measurement and application in various quantum research areas. This breakthrough resolves a longstanding investigation in entanglement theory, enabling efficient computation and broad applicability.

SourceLouisiana State University·JournalPhysical Review Letters·DateJul 29, 2020

Mood homeostasis before, during COVID-19 lockdown

Researchers investigated mood homeostasis before and during COVID-19 lockdown among Dutch students, finding that lockdowns hindered their ability to stabilize their moods with mood-modifying activities. The study aimed to understand how individuals adapted to the lockdowns and what factors influenced their mental well-being.

SourceJAMA Network·JournalJAMA Psychiatry·DateJul 29, 2020

New insights into wound healing

A team of researchers from Washington University in St. Louis has determined for the first time how the process of wound healing begins, shedding light on fibrosis and cancer metastasis. They discovered a recursive process between fibroblasts and their environment, which can be controlled by manipulating cellular responses to drugs.

Engineering a carbon-negative power plant

A team led by Pitt professor Katherine Hornbostel is developing a hybrid plant that captures more carbon than it produces, making it carbon negative. The system integrates natural gas with two carbon capture technologies to achieve high CO2 removal rates during both normal operations and off-peak hours.

Vaping linked with heart problems

A position paper from the European Society of Cardiology highlights the cardiovascular risks of e-cigarette use, particularly among adolescents. The authors call for stricter regulations on marketing and sales, as well as education campaigns to raise awareness about the negative effects of vaping.

SourceEuropean Society of Cardiology·JournalEuropean Journal of Preventive Cardiology·DateJul 29, 2020

Major climate initiative in the Northeastern US benefits children's health

A new study by Columbia University researchers found that RGGI successfully reduced PM2.5 emissions and improved children's health between 2009-2014, avoiding 537 asthma cases, 112 preterm births, 98 ASD cases, and 56 low birthweight cases. The initiative also generated economic savings of $191-$350 million.

SourceColumbia University's Mailman School of Public Health·JournalEnvironmental Health Perspectives·DateJul 29, 2020

'Good' virus for common infection

Australian researchers have developed a phage cocktail therapy to combat antibiotic-resistant Staphylococcus aureus in diabetic foot ulcers. The treatment has shown promising results, effectively decreasing bacterial load and improving wound healing.

SourceFlinders University·JournalBMC Microbiology·DateJul 29, 2020

COVID-19 may cause deadly blood clots

A new study suggests that COVID-19 may cause deadly blood clots in pregnant women and those taking estrogen, highlighting the need for anticoagulation therapy or discontinuation of estrogen medicines. Research is underway to understand how the coronavirus causes blood clots, which could inform prevention strategies.

SourceThe Endocrine Society·JournalEndocrinology·DateJul 29, 2020

Researchers map mechanisms in the largest CRISPR system

Researchers from the University of Copenhagen have mapped and analyzed the atomic structure of the Cmr-β complex, a type III-B CRISPR-Cas system. The study provides new insights into the mechanisms behind this complex's immune response against phages and its potential therapeutic applications in fighting antibiotic resistance.

Indigenous people vital for understanding environmental change

Grassroots knowledge from Indigenous people can help map and monitor ecological changes, improving scientific studies and managing ecosystems. The study reveals negative trends, such as increased invasive species and changes in wild animal health, highlighting the importance of Indigenous and local knowledge for global-scale monitoring.

SourceRutgers University·JournalJournal of Applied Ecology·DateJul 29, 2020

Social distancing varies by income in US

A study by University of California, Davis found that wealthier US communities became the least mobile, while poorer areas increased mobility, exacerbating the pandemic's impact. The research highlights the need for targeted emergency relief packages to address lower-income regions' unique challenges.

SourceUniversity of California - Davis·JournalProceedings of the National Academy of Sciences·DateJul 29, 2020

Reopening K-12 schools during COVID-19 pandemic

The article provides recommendations from a National Academies of Sciences report on reopening elementary and secondary schools, emphasizing partnerships with public health officials and transparent communication. The report aims to minimize risks and maximize benefits for students, staff, and communities.

SourceJAMA Network·JournalJAMA·DateJul 29, 2020

The stars that time forgot

Astronomers have found a strange dismembered star cluster at the galaxy's edge, with lower quantities of heavier elements than other globular clusters. The discovery poses significant problems for current ideas on globular cluster origins.

SourceUniversity of Sydney·JournalNature·DateJul 29, 2020

Night-time exposure to blue light associated with increased risk of colorectal cancer

A new study published in Epidemiology found that night-time exposure to outdoor artificial light, especially blue light, may increase the risk of colorectal cancer. The research analyzed data from over 2,000 adults and found a 60% higher risk of developing colorectal cancer among those with the highest exposures to blue light.

First results of an upgraded device highlight lithium's value for producing fusion

The LTX-β upgrade successfully demonstrates the ability of liquid lithium to hold onto stray particles, improving plasma temperature profiles and expanding plasma volume for fusion. The device aims to test whether coating all plasma-facing walls with lithium can enhance plasma confinement and increase temperature.

SourceDOE/Princeton Plasma Physics Laboratory·JournalIEEE Transactions on Plasma Science·DateJul 29, 2020

Gender gap in surgical residencies

A decade-long study finds that certain surgical specialties have significantly lower percentages of female resident physicians. The researchers identified these specialties and tracked changes in the number of women in each over time.

SourceJAMA Network·JournalJAMA Surgery·DateJul 29, 2020

COVID-19 risk model uses hospital data to guide decisions on social distancing

A new framework helps local entities determine when to tighten social distancing measures and relax restrictions based on hospital data, aiming to minimize economic impact. The model provides clear guidance for tracking hospital admissions data and acting on strict thresholds to prevent hospitals from becoming overwhelmed.

SourceUniversity of Texas at Austin·JournalProceedings of the National Academy of Sciences·DateJul 29, 2020

How stony-iron meteorites form

A scientific team has successfully simulated the formation of pallasites, a type of stony-iron meteorite, on an experimental basis. The experiments confirmed that both partial separation of core and mantle, and subsequent impact of another celestial body, are required for their formation.

SourceTechnical University of Munich (TUM)·JournalEarth and Planetary Science Letters·DateJul 29, 2020

Tailored light inspired by nature

A team of international researchers developed propagation-invariant light fields using caustics that do not change during propagation. This breakthrough enables new applications in high-resolution microscopy, material processing, and multidimensional signal transmission.

SourceUniversity of Münster·JournalNature Communications·DateJul 29, 2020

Pregnant Black and Hispanic women five times more likely to be exposed to coronavirus

A new study by University of Pennsylvania researchers found that pregnant Black and Hispanic women are five times more likely to be exposed to the coronavirus than white and Asian women. The study analyzed serological data from over 1,200 women and found significant variation in virus exposure rates across racial and ethnic groups.

SourceUniversity of Pennsylvania School of Medicine·JournalScience Immunology·DateJul 29, 2020

Scientists find new way to kill tuberculosis

Researchers at Durham University have found a new toxin, called MenT, produced by the TB bacterium Mycobacterium tuberculosis. This toxin inhibits the use of amino acids needed for protein production, causing the bacteria to die. The discovery opens up new avenues for treating tuberculosis and other infections.

SourceDurham University·JournalScience Advances·DateJul 29, 2020

Estimating bisphenol exposures in the Australian population

Researchers in Australia analyzed urine and wastewater samples to estimate changes in bisphenol exposure over six years. They found that urinary levels of BPA decreased, while BPS increased, with higher levels detected in younger age groups. In wastewater, BPA and BPS were consistently detected, with BPF also present in 29% of samples.

SourceAmerican Chemical Society·JournalEnvironmental Science & Technology·DateJul 29, 2020

Astronomers pinpoint the best place on Earth for a telescope: High on a frigid Antarctic plateau

Researchers found that Dome A's unique combination of high altitude, low temperature, and stable atmosphere makes it an attractive location for optical and infrared astronomy. This location could lead to sharper images and the detection of fainter objects, overcoming a major challenge in Earth-based astronomy: atmospheric turbulence.