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Science News for August 15, 2017


Russian scientists deny climate model of IPCC

A new study reveals that subsea permafrost in the East Siberian Arctic Shelf (ESAS) degrades at a rate of 18 cm/year, exceeding previous estimates. This suggests that massive methane emissions into the atmosphere may occur due to the destruction of hydrates, contradicting IPCC climate model predictions.

SourceTomsk Polytechnic University·JournalNature Communications·DateAug 15, 2017

Meta-analysis evaluates the effect of post-primary PCI Bivalirudin I

A meta-analysis of randomized-clinical trials found that full-dose bivalirudin infusion post-PCI for four hours is associated with improved net adverse clinical events and all-cause mortality. Bivalirudin exhibits a lower risk of bleeding compared to unfractionated heparin, but also increases the risk of acute stent thrombosis.

SourceSociety for Cardiovascular Angiography and Interventions·JournalCatheterization and Cardiovascular Interventions·DateAug 15, 2017

What does it take to thrive in elite sports?

A new study reveals that thriving in elite sports requires a combination of internal and external factors, including optimism, focus, and high motivation. The research found that athletes who are highly motivated, develop holistically, and have a sense of belonging tend to thrive at the highest level.

SourceUniversity of Portsmouth·JournalJournal of Applied Sport Psychology·DateAug 15, 2017

Gaining distribution in small retail formats bring big payoffs even for major brands

A recent study found that gaining distribution in small retail formats, such as Save-A-Lot and Aldi, can lead to significantly higher sales increases compared to larger assortment stores. The study, published in Marketing Science, analyzed data from Systembolaget, a Swedish state-owned monopoly, and found that a 10% widening in retail ...

David Attenborough gains new species namesake

A new species of damselfly, Mesosticta davidattenboroughi, has been discovered in mid-Cretaceous Burmese amber and named after Sir David Attenborough. The fossil is extremely well-preserved, showing a complete set of wings, and provides new insights into the past appearance of a rare group of damselflies.

SourceTaylor & Francis Group·JournalJournal of Systematic Palaeontology·DateAug 15, 2017

A metabolic treatment for pancreatic cancer?

Researchers discovered that targeting arginase 2, an enzyme involved in nitrogen metabolism, can curb the growth of pancreatic tumors, especially in obese individuals. The study suggests a novel approach to treating this deadly cancer, with potential for improved survival rates and therapeutic windows.

SourceBoston Children's Hospital·JournalNature Communications·DateAug 15, 2017

Cell economics 101

Researchers discovered that intestinal cells use a strategy to increase protein production within minutes of food entering the intestines, enabling fast and efficient processing. This approach has potential medical implications for diseases such as colitis, Crohn's disease, and bowel cancer.

SourceWeizmann Institute of Science·JournalScience·DateAug 15, 2017

Mercury is altering gene expression

Researchers measured the effect of low-level mercury concentrations on microalga gene expression, revealing widespread deregulation of genes involved in various processes. This study provides insight into the environmental and public health implications of mercury's entry into the food chain.

SourceUniversité de Genève·JournalScientific Reports·DateAug 15, 2017

Adding silicon to soil to strengthen plant defenses

Researchers found that high levels of silicon concentrations decrease insect growth and root consumption by up to 71%. Silicon helps plants build phytoliths, making them less digestible to insects, and triggering an immune system response. This natural defense mechanism could provide a sustainable solution for crop protection.

SourceUniversity of Delaware·JournalSoil Biology and Biochemistry·DateAug 15, 2017

Understanding antibiotic resistance

The study reveals that bacterial defense mechanisms are highly organized in response to nutrient stress, but become disorganized when faced with antibiotics. The researchers used experimental and computational methods to understand the workings of the bacterial defense system.

SourceBoston College·JournalCell Reports·DateAug 15, 2017

How decision-making habits influence the breast cancer treatments women consider

A new study found that women with early-stage breast cancer are more likely to consider double mastectomy due to their decision-making habits and values. Researchers surveyed 2,362 women and discovered that those who were worried about making a bad decision and wanted to make their own choices were more likely to consider the aggressiv...

Skewing the aim of targeted cancer therapies

A new study by Georgia Institute of Technology researchers has found that a widespread biological concept affecting cancer research could be incorrect up to two-thirds of the time. The study's findings suggest that targeting proteins based on messenger RNA levels may not be optimal, potentially leading to drug targeting errors.

SourceGeorgia Institute of Technology·JournalScientific Reports·DateAug 15, 2017

Electroconvulsive therapy for depression in older patients may not relieve their insomnia

Researchers found that ECT had no specific anti-insomnia effect on older patients with depression. In fact, their insomnia problems persisted despite treatment improvements in non-insomnia symptoms. The study suggests that ECT may not be a reliable option for addressing sleep issues in this population.

SourceMedical College of Georgia at Augusta University·JournalJournal of Clinical Psychiatry·DateAug 15, 2017

Smartphone app may help older adults manage serious mental illness and chronic health conditions

A new study in The American Journal of Geriatric Psychiatry found that middle-aged and older adults can successfully use a smartphone-based intervention to self-manage their serious mental illness. The app takes patients through 10 sessions over three months, covering topics such as stress vulnerability and medication adherence.

SourceElsevier·JournalAmerican Journal of Geriatric Psychiatry·DateAug 15, 2017

Rhapsody in red violet

A new study reveals that beets can produce a pigment with high antioxidant properties, boosting crop nutrition and resistance to disease. The researchers successfully engineered plants to produce this pigment, which also showed promise in controlling gray mold in crops.

SourceWeizmann Institute of Science·JournalProceedings of the National Academy of Sciences·DateAug 15, 2017

Biophysical Society names 2018 award recipients

The Biophysical Society has announced its 2018 award recipients, honoring outstanding contributions to the field of biophysics. The winners include Jue Chen, Wonhwa Cho, Bianxiao Cui, Taekjip Ha, Leslie Loew, Carrie Partch, Madeline Shea, and James Spudich for their innovative research and advancements in biophysics.

Study identifies dinosaur 'missing link'

Researchers at University of Cambridge and Natural History Museum analyze 450 anatomical characteristics to place Chilesaurus in dinosaur family tree. The study reveals Chilesaurus fills a large gap between two major dinosaur groups, with implications for understanding the origins of Ornithischia.

SourceUniversity of Cambridge·JournalBiology Letters·DateAug 15, 2017

Chewing gum rapid test for inflammation

A new chewing gum-based diagnostic test can detect inflammation in the oral cavity within five minutes, allowing for early diagnosis and treatment. The test uses bittering agents to identify inflammatory conditions, which can help prevent serious complications such as bone loss.

SourceUniversity of Würzburg·JournalNature Communications·DateAug 15, 2017