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Science News Archive May 2019 - Page 19


Page 19 of 42

Structural and functional mechanisms of a new class of bacterial sigma/anti-sigma factors revealed

Researchers from the Chinese Academy of Sciences uncovered the structural and functional mechanism of SigI/RsgI factors, a new class of σ/anti-σ factors responsible for regulating cellulosomes in Clostridia and Bacilli. The study reveals a unique complex structure and critical recognition specificity among different pairs of proteins.

SourceChinese Academy of Sciences Headquarters·JournalNucleic Acids Research·DateMay 19, 2019

SCAI and ACVP release consensus statement on cardiovascular catheterization laboratory economics

The statement emphasizes that high-quality CCL care should not be limited by fiscal concerns, and provides recommendations for balancing revenue and expenses. It also highlights the importance of aligning leadership, strategy, organization, processes, personnel, and culture to optimize outcomes and efficiency.

SourceSociety for Cardiovascular Angiography and Interventions·JournalCatheterization and Cardiovascular Interventions·DateMay 19, 2019

Owning a dog is influenced by our genetic make-up

A recent study using Swedish Twin Registry data found that genetic variation explains more than half of the variation in dog ownership, implying a significant role for genetics in determining who owns a dog. The study's findings have major implications for understanding dog-human interaction throughout history and modern times.

SourceUppsala University·JournalScientific Reports·DateMay 17, 2019

'Stepped' treatment reduces drinking in patients with HIV

A Yale-led study found that integrated stepped alcohol treatment reduced heavy drinking days and improved abstinence rates in patients with HIV. The treatment model, which involves 'stepping up' treatments based on patient needs, also led to better HIV outcomes, including higher medication adherence and undetectable viral loads.

SourceYale University·JournalThe Lancet HIV·DateMay 17, 2019

Integrated stepped alcohol treatment for people in HIV care improves both HIV & alcohol outcomes

A new clinical research study shows that increasing the intensity of treatment for alcohol use disorder among people with HIV improves both HIV-related disease measures and alcohol-related outcomes. Integrated stepped alcohol treatment (ISAT) involves consecutive steps of increased AUD treatment intensity.

Study finds narrowing gender gap in youth suicides

A recent study found a disproportionate increase in female youth suicide rates compared to males, particularly among younger youth. The study's findings indicate a narrowing of the gender gap in youth suicides, suggesting that future work should examine gender-specific risk factors and inform intervention strategies.

SourceMediaSource·JournalJAMA Network Open·DateMay 17, 2019

The science and technology of FAST

The Five-hundred-meter Aperture Spherical radio Telescope (FAST) has enabled groundbreaking discoveries in pulsar and neutral hydrogen observations. With its ultra-wideband capabilities, FAST allows for the study of rotating radio transients in greater detail than ever before.

Intensive silviculture accelerates Atlantic rainforest biodiversity regeneration

A study conducted in Brazil found that intensive silviculture using herbicide spraying and substantial fertilizer application promotes tropical forest regeneration and biomass gain, exceeding traditional manual weeding methods. Researchers aimed to maximize woody biomass accumulation for carbon sequestration and financial viability.

24% of West Antarctic ice is now unstable

Researchers from the University of Leeds found that Antarctica's ice sheet has thinned by up to 122 meters in places, with rapid changes occurring in West Antarctica. The team tracked changes in snow and ice cover using satellite altimeter measurements and a regional climate model.

SourceUniversity of Leeds·JournalGeophysical Research Letters·DateMay 16, 2019

The Lancet Gastroenterology & Hepatology: Colorectal cancer incidence on the rise among young adults in several high-income countries

The study found significant increases in colon and rectal cancer incidence among young adults in several high-income countries, including Australia, Canada, Denmark, Ireland, New Zealand, Norway, and the UK. The incidence of colon cancer increased significantly each year in people aged 0-49 years, while rectal cancer incidence was most...

SourceThe Lancet·JournalThe Lancet Gastroenterology & Hepatology·DateMay 16, 2019