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Science News Archive 2019 - Page 120


Page 120 of 486

Two ancient migration events in the Andromeda Galaxy: Dynamical footprints uncovered by galactic archaeologists in galaxy next door

Astronomers have uncovered two historic events in the Andromeda Galaxy, with evidence suggesting major changes to its structure occurred a few billion years ago and much earlier. The findings provide insights into the evolution and formation of both the Andromeda Galaxy and our own Milky Way.

Seafood consumption during pregnancy may improve attention capacity in children

Eating a seafood-rich diet during early pregnancy is associated with better attention outcomes in children, according to the study. The researchers found that consuming fatty fish and lean fish had a positive effect on children's attention capacity, while canned tuna and shellfish were linked to lower scores.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalInternational Journal of Epidemiology·DateOct 2, 2019

How to make online recommendations work better

A new study in the Journal of Marketing finds that user-based framing outperforms item-based framing in online recommendations, providing customers with a sense of taste matching beyond product attributes. This approach increases click-through rates and can be adapted at little cost to maximize return on recommender systems.

SourceAmerican Marketing Association·JournalJournal of Marketing·DateOct 2, 2019

Tracking the HI virus

A European research team has developed a method to track the HI virus's spread between living cells using superresolution STED fluorescence microscopy. The study reveals that the HIV pathogen creates a specific lipid environment for replication, providing a potential target for antiviral drugs.

SourceFriedrich-Schiller-Universitaet Jena·JournalScience Advances·DateOct 2, 2019

Planes and vehicles main culprits masking iconic natural sounds in peaceful national parks

Research found that vehicles and aircraft are the main culprits masking iconic natural sounds in peaceful national parks. The study analyzed nearly 47,000 hours of audio clips from 66 national parks, revealing that anthropogenic noise causes a ten-fold increase in natural background sound levels in over a third of parks.

SourceEcological Society of America·JournalFrontiers in Ecology and the Environment·DateOct 2, 2019

Nuclear war between India and Pakistan would launch a global climate catastrophe

Researchers warn that a nuclear conflict between India and Pakistan would release massive amounts of black carbon into the atmosphere, blocking out sunlight and cooling the planet by 2-5°C. This would lead to severe droughts, diminished plant growth, and potentially mass starvation, threatening global stability.

Cancer data provide insights into occurrence, overdiagnosis, and treatment advances

A 40-year epidemiological study found that cancer incidence and mortality rates often move in concert for certain cancers, such as lung cancer, indicating a desirable trend. However, other cancers like thyroid, kidney, and melanoma show rising incidence rates with stagnant mortality rates, suggesting overdiagnosis may be at play

SourceBrigham and Women's Hospital·JournalNew England Journal of Medicine·DateOct 2, 2019

Tunable optical chip paves way for new quantum devices

Scientists demonstrate a new type of quantum device using a silicon carbide photonic integrated chip that can be tunable, paving the way for next-generation quantum information processing devices. The approach overcomes some of the fragility drawbacks of previously reported SiC platforms.

SourceOptica·JournalOptics Letters·DateOct 2, 2019

ADHD and risk of giving birth as teenagers

A Swedish study of over 384,000 women found that those with attention-deficit/hyperactivity disorder (ADHD) had a higher likelihood of giving birth as teenagers. The research suggests that teenage girls with ADHD may face increased risk of early childbirth, highlighting the need for closer monitoring and support.

SourceJAMA Network·JournalJAMA Network Open·DateOct 2, 2019

Quantum vacuum: Less than zero energy

A research team investigated the possibility of negative energy in quantum physics, finding that while energy can be less than zero under certain conditions, it must be paid back. The study placed tight bounds on negative energy and connected it to quintessential properties of quantum mechanics.

SourceVienna University of Technology·JournalPhysical Review Letters·DateOct 2, 2019

Going to sleep on your back in late pregnancy

A recent study published in JAMA Network Open suggests that sleeping on one's back during the third trimester of pregnancy may be associated with average lower birth weights. The study investigated this potential link and found a correlation between back sleepers and smaller newborns.

SourceJAMA Network·JournalJAMA Network Open·DateOct 2, 2019

Recommendations to prevent secondary fractures in adults 65+ with osteoporosis

A multistakeholder coalition has issued clinical recommendations to prevent secondary fractures in older adults with osteoporosis. The guidelines recommend increased communication with patients regarding fracture risk and mortality outcomes, as well as fracture risk reduction strategies.

SourceHebrew SeniorLife Hinda and Arthur Marcus Institute for Aging Research·JournalJournal of Bone and Mineral Research·DateOct 2, 2019