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Science News Archive January 2016 - Page 8


Page 8 of 31

Study shows animals with larger brains are best problem solvers

A study by Sarah Benson-Amram and colleagues found that carnivore species with larger brains relative to their body size were more successful in solving a novel problem-solving task, with bears being the most successful and meerkats and mongooses being the least. The results support the theory that brain size predicts cognitive abilities.

SourceUniversity of Wyoming·JournalProceedings of the National Academy of Sciences·DateJan 25, 2016

Yale team deciphers sugar's siren song

Researchers found that the brain prioritizes calorie intake over taste quality when it comes to sugary foods. The study suggests that the brain has two separate pathways for processing sweetness and energy signals, with calorie-rich foods dominating our desire for sweets.

SourceYale University·JournalNature Neuroscience·DateJan 25, 2016

The way to learn

The great tit's reference genome shows epigenetic processes influencing learning and cognitive processes, with conserved patterns found in humans and other mammals. The study suggests a correlation between methylation levels and molecular evolution rate.

SourceNetherlands Institute of Ecology (NIOO-KNAW)·JournalNature Communications·DateJan 25, 2016

Mom's in control -- even before you're born

Researchers have discovered that epigenetic information in the egg plays a crucial role in shaping the development of the placenta during pregnancy. The study found that DNA methylation marks from the egg are essential for correct placental development, particularly in regulating cell adhesion and migration.

SourceBabraham Institute·JournalDevelopmental Cell·DateJan 25, 2016

Global nitrogen footprint mapped for first time

The study found that the US, China, India, and Brazil are responsible for 46% of global nitrogen emissions, while developing countries export large amounts of nitrogen through food, textiles, and clothing. The results highlight the need for policies to reduce nitrogen pollution globally.

SourceUniversity of Sydney·JournalNature Geoscience·DateJan 25, 2016

New policies, educational programs help -- but don't solve -- problems with opioid abuse

A recent study found that medical provider training, new clinic policies, and tapering opioid use can significantly reduce the level of opioid medication used by patients. However, women had less success with the tapering approach. The research also highlighted the need for close collaboration between doctors, pharmacists, and patients...

SourceOregon State University·JournalSubstance Abuse·DateJan 25, 2016

New theory aids search for universe's origin

A new theory suggests a novel way to probe the beginning of space and time, shedding light on initial conditions. The researchers propose using 'primordial standard clocks' to put time labels on seed fluctuations, allowing for the distinction between inflation and contraction scenarios.

SourceUniversity of Texas at Dallas·JournalJournal of Cosmology and Astroparticle Physics·DateJan 25, 2016

Acoustic tweezers moves cells in three dimensions, builds structures

Researchers created a device that moves single cells in three dimensions using surface acoustic waves, enabling precise manipulation and structure building. The technology has potential applications in regenerative medicine, neuroscience, tissue engineering, biomanufacturing, and cancer metastasis.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateJan 25, 2016

Graphene composite may keep wings ice-free

A thin coating of graphene nanoribbons in epoxy has been proven effective at melting ice on a helicopter blade. The coating, developed by Rice University, may be an effective real-time de-icer for aircraft and other surfaces exposed to winter weather, reducing the need for glycol-based chemicals.

SourceRice University·JournalACS Applied Materials & Interfaces·DateJan 25, 2016

NIH-funded study suggests potential to predict peanut allergy immunotherapy outcomes

A new NIH-funded study suggests that changes in immune cell subtypes after oral immunotherapy for peanut allergy can help predict treatment success. The research, published in Proceedings of the National Academy of Sciences, found a novel T-cell population that likely would not mount an allergic response expanded with treatment.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalProceedings of the National Academy of Sciences·DateJan 25, 2016

New mouse-human modeling system enables study of disease development in vivo

Scientists have created a new mouse-human modeling platform that can study neural crest development and model diseases like melanoma and neurofibromatosis. The system uses human committed stem cells injected into mouse embryos, resulting in successfully integrated chimeras with disease-relevant human cells.

SourceWhitehead Institute for Biomedical Research·JournalProceedings of the National Academy of Sciences·DateJan 25, 2016

The aftermath of 1492

A Harvard study reveals that disease didn't break out until nearly a century after European contact in northern New Mexico, coinciding with mission church establishment. Native populations dropped from 6,500 to fewer than 900 in just 60 years, resulting in staggering social, cultural, and environmental impacts.

SourceHarvard University·JournalProceedings of the National Academy of Sciences·DateJan 25, 2016

Crouching protein, hidden enzyme

Researchers at Scripps Research Institute and UC Berkeley have made a breakthrough in understanding the proteasome, a molecular machine responsible for breaking down toxic proteins. The new study reveals how a crucial enzyme, Rpn11, is activated to remove harmful proteins from cells, providing potential new therapies for diseases such ...

Targeted axillary dissection of lymph nodes after chemotherapy improves staging accuracy of node-positive breast cancer

A new procedure, Targeted Axillary Dissection (TAD), reduces need for invasive surgery in select patients with axillary metastasis. TAD involves removing sentinel lymph nodes and additional cancerous lymph nodes found during diagnosis, improving staging accuracy and reducing complications.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalJournal of Clinical Oncology·DateJan 25, 2016

Highly efficient heavy metal ions filter

A new hybrid filter membrane has been developed to remove heavy metals from water, including industrially relevant elements like lead and mercury. The membrane's efficiency is high, with over 99% of toxic substances bound in just a single pass.

SourceETH Zurich·JournalNature Nanotechnology·DateJan 25, 2016