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Science News for December 5, 2018


Mantle neon illuminates Earth's formation

Researchers used neon isotopes to study Earth's mantle formation, finding evidence of rapid early planet formation and delivery of vital compounds. The findings support the idea that a planet must reach a certain size before absorbing these ingredients, which is consistent with observations of other solar systems.

A banner year for pharma

In 2018, the biotech industry saw significant investment from venture capital firms and a surge in initial public offerings. Promising developments include the approval of the first RNA interference drug, Onpattro, for treating rare genetic disorders, as well as advancements in CRISPR technology and cannabis-based therapeutics.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateDec 5, 2018

Wireless, battery-free sensors monitor skin exposure to solar radiation

Researchers have developed wireless, battery-free sensors that monitor skin exposure to solar radiation in real-time, providing a flexible method to track UV light. The devices overcome existing drawbacks such as limited battery life, allowing for broader use in outdoor activities and optimizing light-based treatments for skin conditions.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience Translational Medicine·DateDec 5, 2018

Guiding the smart growth of artificial intelligence

A new paper examines the rationale behind the 'Barcelona Declaration' for responsible AI development and usage in Europe, focusing on safety, reliability, and ethics issues. The declaration aims to integrate best practices proactively as part of the design process.

SourceIOS Press·JournalAI Communications·DateDec 5, 2018

Adding new channels to the brain remote control

Researchers have developed new tools for controlling specific cells in the brain using light, enabling the study of individual neurons within complex networks. The new protein pores allow for switching neurons on or off using light, opening up new possibilities for probing brain function.

SourceFrontiers·JournalFrontiers in Neuroscience·DateDec 5, 2018

OU study explores sexuality & gender gaps in political perspectives among college students

A new study by University of Oklahoma sociologist Meredith Worthen reveals clear 'sexuality gap' between exclusive heterosexuals and others, as well as gender gaps among mostly heterosexual and lesbian, gay, and bisexual students. The research suggests that liberal attitudes are more common among LGB individuals, particularly women.

SourceUniversity of Oklahoma·JournalSexuality Research and Social Policy·DateDec 5, 2018

Learning from mistakes

A Caltech-led team of researchers has identified individual neurons that monitor our behavior, catching errors and correcting them quickly. The study provides rare recordings of these neurons, which are involved in error monitoring and have implications for psychiatric diseases like obsessive-compulsive disorder.

Being employed puts your health at risk

The symposium presentation explores current topics in occupational risk analysis, including chronic traumatic encephalopathy (CTE) and dermal contact with solid metals. Studies have found a lifetime excess risk of CTE in NFL players to be unacceptably high, highlighting the need for regulations.

New insights in rust resistance in wheat

Researchers from Aarhus University have made significant breakthroughs in understanding the mechanisms of yellow rust resistance in wheat. The study found that Yr15 gene produces defence responses early in infection, providing a crucial piece of information for developing disease-resistant varieties.

SourceAarhus University·JournalNature Communications·DateDec 5, 2018

Artificial synapses made from nanowires

Scientists have created a memristive element made from nanowires that functions similarly to biological nerve cells, storing and processing information in parallel. The discovery offers promising advantages for bioinspired computers, which can work decentralised with multiple processors connected by networks.

SourceForschungszentrum Juelich·JournalNature Communications·DateDec 5, 2018

New study uncovers why Rift Valley fever is catastrophic to developing fetuses

A new study has found that Rift Valley fever virus can cause high rates of stillbirth in pregnant rats and human tissue, with the virus evading the mother-child barrier more efficiently than other vertically transmitted viruses. The research aims to develop vaccines to prevent the virus from causing miscarriage and birth defects.

Narcissists less likely to support democracy

Research suggests that people with narcissistic tendencies are more likely to reject democratic institutions, preferring strong leadership or authoritarian rule. In contrast, those with a positive self-view and high levels of trust in others tend to support democracy more strongly.

SourceUniversity of Kent·JournalBritish Journal of Social Psychology·DateDec 5, 2018

Wildfire ash could trap mercury

Researchers found that burned forest material can sequester mercury, preventing its release into waterways. Black ash from low-intensity burns contained similar amounts of mercury as unburned vegetation and white ash from high-intensity burns had higher levels in a non-reactive form.

SourceAmerican Chemical Society·JournalEnvironmental Science & Technology·DateDec 5, 2018

New recommendations for the conduct of economic evaluations in osteoporosis

The International Osteoporosis Foundation and the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases established recommendations for economic evaluations in osteoporosis. These guidelines aim to improve transparency and methodologic standards, promoting high-quality methodolo...

SourceInternational Osteoporosis Foundation·JournalOsteoporosis International·DateDec 5, 2018

Assessing India's health with a single question

A study by researchers from UNIGE and Calcutta examines the reliability of a self-assessment question for evaluating health status in middle-income countries. The team found that the simple question provided a sound understanding of India's population health, with better variance captured compared to Switzerland.

SourceUniversité de Genève·JournalBMJ Global Health·DateDec 5, 2018

How the brain hears and fears

Scientists at Cold Spring Harbor Laboratory found that brain cells in mice associate sounds with emotions through experience and learning. The amygdala, a key brain region, shows specific patterns of neuron activity when animals are trained to fear or anticipate rewards.

SourceCold Spring Harbor Laboratory·JournalNature Communications·DateDec 5, 2018

Breakthrough in blood vessel engineering

A team at the University of Delaware has pioneered methods to grow a self-assembling, functional network of blood vessels. The system works across centimeter scales, necessary for functional tissue replacement, and could someday be utilized for tissue and organ transplantation into humans.

SourceUniversity of Delaware·JournalBiomaterials·DateDec 5, 2018

Modeling the microbiome

Researchers analyzed the interactions between five core species of bacteria found in the fly gut, revealing a nuanced tradeoff between lifespan and fecundity. The study suggests that the presence or absence of individual species influences the host's fitness, and that the microbiome's influence cannot be solely attributed to its parts.

SourceUniversity of California - Santa Barbara·JournalProceedings of the National Academy of Sciences·DateDec 5, 2018

Molecular adlayer produced by dissolving water-insoluble nanographene in water

Researchers from Kumamoto University and Tokyo Institute of Technology developed a method to dissolve water-insoluble nanographene in water using molecular containers. The method successfully produced a highly ordered 2D molecular adlayer on a gold substrate, revealing its potential for next-generation functional nanomaterials.

SourceKumamoto University·JournalAngewandte Chemie International Edition·DateDec 5, 2018

CEASE program increases smoking cessation assistance provided to breastfeeding mothers

A new study by MassGeneral Hospital for Children finds that breastfeeding mothers are more likely to quit smoking when they have access to evidence-based assistance. The CEASE program, which trains pediatric office staff to screen and support smoking families, provides nicotine replacement prescriptions and referrals to state quitlines.

SourceMassachusetts General Hospital·JournalNicotine & Tobacco Research·DateDec 5, 2018

Study examines effects of different opioids on driving performance

A recent study found that opioids like methadone and buprenorphine can impair cognitive tasks and increase sleepiness, with four participants stopping their tests due to drowsiness. The study's results indicate that patients should be informed about the potential driving impairment caused by these medications.

SourceWiley·JournalBritish Journal of Clinical Pharmacology·DateDec 5, 2018

Widespread decrease in wind energy resources found over the Northern Hemisphere

A new study reveals a significant decline in wind energy resources over the Northern Hemisphere, with 30-80% of stations losing wind power potential since 1979. Climate models are found to be inadequate in simulating long-term wind energy changes, underscoring the need for careful consideration when using GCM-based projections.

Rethinking the history related to indigenous sites in northeast North America

Scientists used radiocarbon dating to re-evaluate the history of key indigenous sites in Canada, finding that European trade goods were not reliable chronological markers. The study suggests that notable 'contact-era' events may need to be revaluated, as previously dated sites now date 50-100 years later than assumed.

UC San Diego researchers develop sensors to detect and measure cancer's ability to spread

Researchers have engineered sensors to monitor multiple signaling pathways driving tumor metastasis, enabling the prediction of a tumor cell's potential to spread. The development of Fluorescence Resonance Energy Transfer (FRET) biosensors has the potential to transform cancer cell biology and inform personalized treatment strategies.

Extreme ethnic inequalities in the care system

Research reveals extreme ethnic inequalities in the care system, with disparities affecting children from minority ethnic groups. The study found that 'White British' children are ten times more likely to be in care than 'Asian Indian' children, and 'Black Caribbean' children are 20 times more likely.

SourceUniversity of Huddersfield·JournalChildren and Youth Services Review·DateDec 5, 2018

Small molecules come into focus

Scientists at Harvard University and Brigham and Women's Hospital developed a new immunoassay technique that measures extremely low concentrations of small molecules using single-molecule detection. The method was tested on two important human body molecules, cortisol and PGE2, achieving up to 50 times greater sensitivity than conventi...

SourceWyss Institute for Biologically Inspired Engineering at Harvard·JournalJournal of the American Chemical Society·DateDec 5, 2018

Can rice filter water from ag fields?

Researchers have discovered that rice plants can be used to clean runoff from farms before it enters waterways, capturing pesticides and reducing their presence in rivers and streams. The study found that levels of three common pesticides dropped by as much as 97% in fields where rice was planted.

SourceAmerican Society of Agronomy·JournalJournal of Environmental Quality·DateDec 5, 2018