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Science News for March 5, 2023


Researchers achieve nonreciprocal frequency conversion with optical and mechanical modes

A research team from USTC demonstrated nonreciprocal routing between any two modes with different frequencies using radiation pressure force. They used two optical modes and two mechanical modes to form a closed loop in a microresonator, achieving phonon-phonon, photon-photon, and photon-phonon nonreciprocal conversions.

SourceUniversity of Science and Technology of China·JournalPhysical Review Letters·DateMar 5, 2023

Death rates from lung cancer will fall overall in the EU and UK in 2023, but rise among women in France, Italy and Spain

Lung cancer death rates are projected to decrease overall in the EU and UK in 2023, however, a concerning trend is observed among women in France, Italy, and Spain. Meanwhile, pancreatic cancer death rates are forecasted to rise among women due to continued smoking habits.

SourceEuropean Society for Medical Oncology·JournalAnnals of Oncology·TypeObservational study·DateMar 5, 2023

Antarctic sea ice at lowest level in 45 years marks a reversal from the long-term increasing trend to a decreasing trend

Satellite observations reveal Antarctic sea ice extent has dropped to a record low of 1.788 million square kilometers, marking a reversal from long-term increasing trend to a decreasing one. This occurrence raises questions about the cause and implications of this change, particularly in light of human-caused global warming.

SourceOcean-Land-Atmosphere Research (OLAR)·JournalOcean-Land-Atmosphere Research·TypeNews article·DateMar 5, 2023

Transcatheter mitral valve repair in heart failure patients significantly reduces hospitalizations and improves survival

A new study shows that transcatheter mitral valve repair significantly reduces hospitalizations by almost 50 percent and death by nearly 30 percent in heart failure patients with severe mitral regurgitation. The procedure, using Abbott's MitraClip system, improves symptoms, reduces hospitalizations, and leads to longer survival.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalNew England Journal of Medicine·TypeRandomized controlled/clinical trial·DateMar 5, 2023

Physical activity and tailored support fails to deliver lasting benefits for smokers not ready to quit

A recent study found that promoting physical activity and behavioral support can help smokers reduce their smoking in the short-term, but delivering lasting benefits is challenging. The research, which recruited over 900 smokers, discovered that engaging with motivational support had some initial benefits, but only a small percentage o...

SourceUniversity of Plymouth·JournalAddiction·TypeRandomized controlled/clinical trial·DateMar 5, 2023

Sensitive and selective electrochemical sensor for the detection of dopamine by using AuPd@Fe2O3 nanoparticles as catalyst

Researchers developed a sensitive and selective electrochemical sensor using AuPd@Fe2O3 nanoparticles to detect dopamine. The sensor shows high sensitivity and anti-interference capabilities, making it suitable for detecting dopamine in pharmaceuticals and biological samples.

SourceBeijing Zhongke Journal Publising Co. Ltd.·JournalAdvanced Sensor and Energy Materials·DateMar 5, 2023

Alert banners dramatically increase prescribing rates of life-saving heart failure medication

Researchers at NYU Grossman School of Medicine found that automated systems with alert banners increased MRA therapy prescriptions for heart failure patients by 30%. The system aims to improve care and reduce costs by streamlining medical information in one place. The study tested two notification types, finding that banner-like alerts...

New ‘phase shifter’ technology will reduce signal loss in antenna systems

Researchers at the University of Birmingham have developed a new type of high-performance 'phase shifter' that uses a liquid Gallium alloy to control microwave and millimetre-wave radio signals. The prototype testing shows low signal losses and extremely low phase deviation over a wide bandwidth.

SourceUniversity of Birmingham·JournalIEEE Transactions on Microwave Theory and Techniques·TypeExperimental study·DateMar 5, 2023

COVID-19 infection leads to increased rates of chest pain six months to a year after infection in patients

Researchers at Intermountain Health studied nearly 150,000 COVID-19 patients and found a significant increase in chest pain rates six months to one year after infection. Long-term cardiovascular complications may be emerging, Dr. Heidi May notes., Chest pain persisted as a problem despite no major events like heart attacks or strokes.

SourceIntermountain Healthcare·TypeObservational study·DateMar 5, 2023