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Science News Archive October 2017 - Page 30


Page 30 of 43

Pumas living near human development expend more energy

A study found that pumas in developed areas are more active at night, expending 10-11% more energy daily. This increased activity affects their ability to hunt and feed their young, highlighting the importance of conservation strategies in human-dominated landscapes.

SourcePLOS·JournalPLOS ONE·DateOct 11, 2017

Study shows epidurals don't slow labor

A new study published in Obstetrics & Gynecology has found that epidural analgesia does not affect the duration of the second stage of labor, contrary to long-held beliefs. The research compared catheter-infused epidural anesthetic with a saline placebo and found no significant difference in duration or other outcomes.

SourceBeth Israel Deaconess Medical Center·JournalObstetrics and Gynecology·DateOct 10, 2017

Seeing the next dimension of computer chips

Scientists at Osaka University used scanning tunneling microscopy to create images of atomically flat side-surfaces of 3D silicon crystals, a crucial step towards designing smaller, faster, and more energy-efficient computer chips. The achievement paves the way for innovation in semiconductor manufacturing.

SourceOsaka University·JournalJapanese Journal of Applied Physics·DateOct 10, 2017

Without a nudge, old prescribing habits die hard for clinicians

Researchers found that two psychological approaches, peer comparison and accountable justification, significantly reduced inappropriate antibiotic prescribing rates. However, when these interventions were removed after a year, some clinicians' bad habits returned, highlighting the need for long-term adoption of nudges to maintain bette...

SourceUniversity of Southern California·JournalJournal of the American Medical Association·DateOct 10, 2017

When anemones bleach, clownfish suffer

Researchers found that bleached anemones led to a drastic fall in viable eggs among clownfish (-73%) and increased cortisol levels. This study reveals the impact of climate change on coral reefs and the fish that depend on them.

SourceCNRS·JournalNature Communications·DateOct 10, 2017

Quorn protein on par with animal sources

A new study by the University of Exeter suggests that Quorn protein may be as effective as animal-based proteins in building muscle. The research compared Mycoprotein, a fungi-based protein source found in Quorn foods, to milk protein and found equivalent bioavailability.

SourceUniversity of Exeter·JournalBritish Journal Of Nutrition·DateOct 10, 2017

Do male fish prefer them big and colorful?

In a study published in Springer's Behavioral Ecology and Sociobiology, researchers found that male black-finned goodeid fish prefer females with larger bellies and more vibrant colors. These physical traits were associated with higher reproductive value and increased chances of offspring survival.

SourceSpringer·JournalBehavioral Ecology and Sociobiology·DateOct 10, 2017

Protein restricts sap uptake by aphids

Researchers at Umea University have discovered a plant protein that limits aphid feeding behavior, resulting in reduced sap ingestion and fewer offspring on resistant plants. The protein is thought to occlude the narrow food canal of the aphid, providing a new avenue for developing more sustainable crop resistance.

SourceUmea University·JournalThe Plant Cell·DateOct 10, 2017

Machine learning translates 'hidden' information to reveal chemistry in action

Scientists have developed a new machine learning method that can analyze x-ray data to reveal the structures and environments of catalysts during reactions. This allows for real-time analysis and optimization of reaction conditions, potentially leading to improved catalyst performance and faster production of desired products.

SourceDOE/Brookhaven National Laboratory·JournalThe Journal of Physical Chemistry Letters·DateOct 10, 2017

Forget about it

Researchers develop a quantum perovskite material that exhibits adaptive response to repeated proton insertion and removal, resembling brain's desensitization. This property enables effective programming of the material like a computer.

SourceDOE/Argonne National Laboratory·JournalNature Communications·DateOct 10, 2017

More than half of police killings not officially documented on US death certificates

A new study from Harvard T.H. Chan School of Public Health found that official US death certificates failed to count over half of the people killed by police in 2015, with a greater proportion undercounted in lower-income counties and for deaths involving non-firearm means like Tasers. The study's findings highlight the need for better...

Mass. General team creates functional, stem-cell-derived small bowel segments

A team of researchers at Massachusetts General Hospital has successfully created functional small intestine segments using human induced pluripotent stem cells. The segments were able to absorb nutrients and transfer glucose and fatty acids into the bloodstream when transplanted into rats. This breakthrough could potentially provide a ...

SourceMassachusetts General Hospital·JournalNature Communications·DateOct 10, 2017