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Science News Archive December 2016 - Page 26


Page 26 of 32

Bacterial mechanism converts nitrogen to greenhouse gas

Researchers at Cornell University discovered a biological mechanism that converts nitrogen-based fertilizer into nitrous oxide, increasing atmospheric levels by 120%. The enzyme cytochrome P460 produced in ammonia-oxidizing bacteria leads to nitrous oxide production as a chemical coping strategy.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateDec 6, 2016

Do cannabis users think package warnings are needed?

A study found that cannabis users in Australia recommended package warnings that focused on driving ability, mental health, and addiction risk, mirroring some expert warnings. However, users also suggested unconventional warnings not typically recommended by experts, highlighting the need for caution in packaging cannabis products.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalCannabis and Cannabinoid Research·DateDec 6, 2016

Unlocking a liver receptor puzzle

Researchers at Emory Health Sciences have made a breakthrough in understanding how diabetes drugs interact with LRH-1, a protein that regulates metabolism of fat and sugar. The study found that small changes to compounds can significantly impact their binding pocket interaction.

SourceEmory Health Sciences·JournalJournal of Biological Chemistry·DateDec 6, 2016

Unique strain of lactic acid bacteria in Buryat milk is found

Researchers from Lomonosov Moscow State University have isolated a unique strain of lactic acid bacteria, Lactococcus lactis subsp. lactis 194, from Buryat milk that possesses a wide range of antimicrobial action against Gram-positive and Gram-negative bacteria. The strain also shows antifungal properties, making it a promising candida...

SourceLomonosov Moscow State University·JournalJournal of Microbial & Biochemical Technology·DateDec 6, 2016

An amino acid controls plants' breath

Researchers at the Institute for Basic Science discovered that amino acid L-methionine activates calcium channels in plant guard cells, regulating stomatal opening and closing. This process is crucial for maintaining adequate intracellular calcium levels in plants, essential for growth and breathing.

SourceInstitute for Basic Science·JournalCell Reports·DateDec 6, 2016

Illinois researchers discover hot hydrogen atoms in Earth's upper atmosphere

Researchers at the University of Illinois have discovered hot atomic hydrogen atoms in the thermosphere, a layer of the atmosphere above 250 kilometers. This finding contradicts previous assumptions and has significant implications for understanding atmospheric escape and the behavior of satellites in low Earth orbit.

Fast evolution affects everyone, everywhere

Research highlights how humans impact the evolution of other species, leading to rapid changes in a few years to decades. Examples include commercial fishing, invasive species, and urbanization, which drive evolutionary adaptations.

SourceMcGill University·JournalPhilosophical Transactions of the Royal Society of London (B )·DateDec 5, 2016

Prehistoric plant remains highlight diverse origins of cereal domestication

Researchers uncover regional diversity in plant species exploited during Pre-Pottery Neolithic A, challenging previous assumptions about the importance of cereals. The study suggests that legumes played a crucial role in eastern Fertile Crescent regions and contributed to chronological dissimilarities in cereal domestication.

SourceUniversity of Copenhagen - Faculty of Humanities·JournalProceedings of the National Academy of Sciences·DateDec 5, 2016

Double whammy for triple negative breast cancer

Researchers at the Weizmann Institute of Science have identified a promising new combination therapy for triple negative breast cancer, which inhibits tumor growth and survival while preventing drug resistance. The therapy targets EGFR and PYK2 molecules, leading to a more potent therapeutic effect than inhibiting either molecule alone.

SourceWeizmann Institute of Science·JournalCancer Research·DateDec 5, 2016

Syrian crisis altered region's land and water resources, Stanford study finds

A Stanford study found that the Syrian civil war caused a significant decrease in agricultural irrigation and reservoir storage in Syria, with irrigation land decreasing by 47% and reservoir storage dropping by 49%. This reduction has led to increased flow in neighboring countries like Jordan, exacerbating water scarcity issues.

SourceStanford's School of Earth, Energy & Environmental Sciences·JournalProceedings of the National Academy of Sciences·DateDec 5, 2016

An eye on young specialists' success

A recent study by Queen's University researcher Dr. Robert Campbell found that young ophthalmologists are struggling to secure practice opportunities after total provincial surgical rates plateaued in Ontario. The study suggests a pressing need for effective career counselling and policy changes to address the issue.

SourceQueen's University·JournalCanadian Medical Association Journal·DateDec 5, 2016

Why the flounder is flat

A team of researchers has identified the genetic mechanisms driving the metamorphosis that transforms flounders from symmetrical larvae to asymmetrical adults. The discovery sheds new light on an evolutionary puzzle, but also has practical implications for the fishing industry, which faces significant losses in flounder aquaculture.

SourceUniversity of Würzburg·JournalNature Genetics·DateDec 5, 2016