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Science News Archive December 2018 - Page 8


Page 8 of 33

Cost to walk away from Facebook for a year? More than $1,000, new study finds

Researchers conducted real-life auctions where people were paid to close their Facebook accounts for varying durations. The results showed that the average value of Facebook access exceeds $1,000 for a year, with students placing higher values than community members. The study contrasts the company's market capitalization with the valu...

Using sound to independently levitate a range of objects is achieved for the first time

Scientists develop acoustic tweezers capable of independently levitating a range of small-sized objects using sound waves. This technology offers several advantages over optical tweezers, including the ability to penetrate biological tissue safely and non-invasively, making it ideal for cell manipulation applications.

SourceElhuyar Fundazioa·JournalProceedings of the National Academy of Sciences·DateDec 19, 2018

Dancing may help older women maintain the ability to perform daily tasks

A new study found that dancing alone was associated with a significantly lower likelihood of developing activities of daily living (ADL) disability in older Japanese women. Dancing requires various elements such as balance, strength, and cognitive ability, which may contribute to its superior benefits in maintaining ADL capacity.

SourceWiley·JournalScandinavian Journal of Medicine and Science in Sports·DateDec 19, 2018

Study links nutrients in blood to better brain connectivity, cognition in older adults

A new study found a robust link between higher levels of several nutrient biomarkers in the blood and enhanced performance on specific cognitive tests. The analysis revealed that omega-3 fatty acids, carotenoids, lycopene, and vitamins B and D worked synergistically to improve brain health and cognition in older adults.

3D-printed robot hand plays the piano

Researchers at the University of Cambridge developed a 3D-printed robotic hand that can play simple musical phrases on the piano using passive movement. The robot's wrist actuation allows it to mimic different playing styles, demonstrating the potential for smart mechanical design in achieving complex movement.

SourceUniversity of Cambridge·JournalScience Robotics·DateDec 19, 2018

Food insecurity linked with binge-eating disorder and obesity

A recent study found that food insecurity is associated with an increased likelihood of binge-eating disorder and obesity in US adults. Individuals with binge-eating disorder and obesity reported cutting meal sizes and skipping meals more frequently than those with a healthy weight.

SourceWiley·JournalInternational Journal of Eating Disorders·DateDec 19, 2018

Bacterial protein could help find materials for your next smartphone

A newly discovered protein from the bacterium Methylobacterium extorquens has been found to be 100 million times better at binding to lanthanides than to other metals. The protein's unique structure may explain its remarkable selectivity, which could provide insights into detecting and targeting rare-earth metals for industrial purposes.

SourcePenn State·JournalBiochemistry·DateDec 19, 2018

Robots with sticky feet can climb up, down, and all around

Researchers at Harvard University developed a micro-robot called HAMR-E that can climb on vertical and upside-down surfaces, allowing for non-invasive inspection of hard-to-reach areas of large machines. The robot uses electroadhesive foot pads and origami ankle joints to navigate complex environments, saving companies time and money.

The chemistry year in review

The American Chemical Society (ACS) reviewed 2018's top research stories, including machine learning and new solutions for plastic waste. Experts predict key advances in 2019, such as automated chemical synthesis and analysis, and solid-state battery technologies.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateDec 19, 2018

Mortality rates rising for Gens X and Y too

A new study found elevated mortality patterns among late-Gen X (38-45 year-olds) and early-Gen Y (27-37 year-olds), with non-Hispanic whites being disproportionately affected. The study suggests that economic difficulties during the Great Recession may have contributed to increased health impacts on these age groups.

SourceDuke University·JournalInternational Journal of Epidemiology·DateDec 19, 2018

Hardware-software co-design approach could make neural networks less power hungry

A team of researchers developed a neuroinspired hardware-software co-design approach that can make neural network training more energy-efficient and faster. The approach uses a type of energy-efficient neural network called spiking neural networks, combined with the soft-pruning algorithm to minimize computing power and time.

SourceUniversity of California - San Diego·JournalNature Communications·DateDec 19, 2018

X chromosome: how genetics becomes egalitarian

Researchers from UNIGE analyzed skin and blood cells from five women, identifying 55 genes that escape inactivation of the second X chromosome. The team found that XIST gene expression is key to inactivation, but also discovered five other genes playing a crucial role in the mechanism.

SourceUniversité de Genève·JournalProceedings of the National Academy of Sciences·DateDec 19, 2018

Climate change affects breeding birds

Research by Heather Watts found that house finch breeding seasons are shifting approximately four-and-a-half days earlier with every degree Celsius increase in temperature. This shift may be beneficial for the birds if they can time breeding with seed availability, but could become problematic as climate change continues.

Helping make brain surgery safer

A biopsy needle with a tiny fiber-optic camera has been tested in humans to help surgeons identify and avoid blood vessels in the brain during surgery. The device detected blood vessels with high accuracy (91.2% sensitivity and 97.7% specificity), reducing the risk of brain bleeds.

SourceUniversity of Adelaide·JournalScience Advances·DateDec 19, 2018

New insights on animal movement in fire-prone landscapes

A new review article explores how fire histories affect animal movement patterns and the distribution of species. It highlights the consequences of altered fire regimes and habitat fragmentation on animal populations, emphasizing the need for interdisciplinary research to better understand these complex interactions.

SourceWiley·JournalBiological Reviews·DateDec 19, 2018

Delivery method associated with pelvic floor disorders after childbirth

A decade-long study found that vaginal childbirth substantially increases the probability of developing pelvic floor disorders, such as urinary incontinence and uterine prolapse, later in life. The study also identified delivery modes associated with higher risk, including spontaneous vaginal delivery and operative vaginal delivery.

SourceJohns Hopkins Medicine·JournalJournal of the American Medical Association·DateDec 19, 2018

How US children and teens die: Study reveals the widespread and persistent role of firearms

A new study reveals that firearm-related deaths are the second leading cause of death among US children and teens, accounting for over 60% of preventable deaths. The rate of firearm-related death remains persistent, with over eight children dying daily, and disproportionately affects urban adolescents and African-American youth.

SourceMichigan Medicine - University of Michigan·JournalNew England Journal of Medicine·DateDec 19, 2018

Why is sea level rising faster in some places along the US East Coast than others?

A new study by Woods Hole Oceanographic Institution reveals that sea levels are rising faster in some U.S. East Coast regions compared to others, primarily due to post-glacial rebound. The research team found that when post-glacial rebound was stripped away, sea level trends increased steadily from Maine to Florida, indicating the impa...