Add BrightSurf on Google Email

Science News Archive September 2020 - Page 8


Page 8 of 49

CNIC design an algorithm for personalized cardiovascular risk estimation in healthy people

Scientists at CNIC designed an algorithm that estimates cardiovascular risk in healthy middle-aged individuals based on variables like age, blood pressure, diet, and biomarkers. The EN-PESA algorithm provides a personalized risk profile for those with subclinical atherosclerosis or high short-term disease progression risk.

SourceCentro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.)·JournalJournal of the American College of Cardiology·DateSep 28, 2020

How important is sex to women as they age?

A significant percentage of women continue to value sex throughout midlife, with factors like ethnicity, health, and depression symptoms affecting their interest. The study identified three distinct trajectories in importance of sex with aging, with black women and those with higher education maintaining high levels of importance.

The Arctic is burning in a whole new way

The Arctic wildfire season is changing, with widespread wildfires burning earlier and farther north. Zombie fires, where fires smolder in peat underground, are a new feature of recent Arctic fires. The consequences for the global climate could be significant, including rapid thawing of permafrost and release of greenhouse gases.

SourceUniversity of Colorado at Boulder·JournalNature Geoscience·DateSep 28, 2020

Anti-convulsant drug can modify DNA conformation and interact with chromosome proteins

Researchers from UNICAMP found that valproic acid can modify DNA conformation and interact with chromosome proteins. The compound causes changes in the conformation of histones H1 and H3, as well as DNA superstructure and molecular order. This discovery paves the way for novel pharmaceutical research.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalInternational Journal of Biological Macromolecules·DateSep 28, 2020

Surgical quality and safety rely on institutional leadership, resources, and culture

Key findings from a comprehensive literature review highlight the importance of top-down commitment to quality, mid-level leadership, and committee structure in achieving high-quality surgical outcomes. The study supports the ACS Quality Verification Program's Optimal Resources for Surgical Quality framework.

SourceAmerican College of Surgeons·JournalJournal of the American College of Surgeons·DateSep 28, 2020

Disastrous duo: Heatwaves and droughts

A new study by McGill University researchers finds that combined dry and hot events are increasing in frequency and size, causing widespread damage. The study suggests that climate change is driving these extremes, which can be particularly devastating for agriculture and ecosystems.

SourceMcGill University·JournalScience Advances·DateSep 28, 2020

COVID-19: Saliva tests could detect silent carriers

Scientists at Hokkaido University developed a saliva test that detects asymptomatic COVID-19 cases with high sensitivity and specificity. The study found that saliva samples can accurately identify infected individuals without symptoms, reducing the risk of viral transmission to healthcare workers.

SourceHokkaido University·JournalClinical Infectious Diseases·DateSep 27, 2020

Wind forecasts power up for reliable energy production

KAUST researchers developed a statistical model providing the best wind forecast yet for Saudi Arabia, aiming to increase renewable energy in the grid and reach 9 gigawatts of installed wind energy by 2030. The model uses advanced statistical approaches to jointly model wind speed and direction, showing improved prediction performance.

SourceKing Abdullah University of Science & Technology (KAUST)·JournalThe Annals of Applied Statistics·DateSep 27, 2020

New method allows precise gene control by light

A novel optical switch enables precise control over the lifespan of genetic copies by attaching aptamers to molecular markers. This method can be used to specifically switch off practically every mRNA molecule in a cell in a controlled manner, opening up new avenues for investigating dynamic processes in living cells.

SourceUniversity of Bonn·JournalNature Communications·DateSep 25, 2020

FSU researchers help develop sustainable polymers

Researchers at FSU have made new discoveries on the effects of temperature on sustainable polymers, which may help produce environmentally friendly plastics. The team found that certain polymers crystallize in unusual ways when cooled, leading to increased toughness and potential applications for sustainable plastic production.

SourceFlorida State University·JournalMacromolecules·DateSep 25, 2020

Not just a phase

University of Pittsburgh professors Nathan Youngblood and Feng Xiong receive $380,000 to study phase-change materials for high-speed computing and optical storage applications. The project aims to overcome the challenges in electrically-controlled optical memory devices.

Nerve cells let others "listen in"

A recent study published in Neuron reveals that the brain's signal transmission is regulated by the environment, with certain processes allowing for more open communication between neurons. The researchers found that astrocytes, specialized cells in the brain, play a crucial role in shielding communication to some extent.

SourceUniversity of Bonn·JournalNeuron·DateSep 25, 2020