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Science News Archive October 2016 - Page 36


Page 36 of 44

'Blind dates' in the amber world

Scientists have discovered a 54 million-year-old fossilized biting midge in amber, revealing an unusual vesicular structure at the front edge of its wings. This structure was likely used by the female midge to collect and spray pheromones for attraction, unlike modern biting midges that use simpler methods.

SourceUniversity of Bonn·JournalScientific Reports·DateOct 5, 2016

The adolescent brain is adapted to learning

New research suggests that teenagers' sensitivity to reward is an evolutionary adaptation to learn from their environment. The study found that adolescents outperformed adults in a picture-based game requiring learning from positive and negative reinforcement cues.

SourceCell Press·JournalNeuron·DateOct 5, 2016

To help or not to help?

In emergency situations, people tend to behave either egotistically or prosocially, with some individuals being more cooperative than others. A study published in Nature Scientific Reports found that most participants helped others less in emergency situations due to time pressure, while prosocial individuals were more willing to help.

SourceMax-Planck-Gesellschaft·JournalScientific Reports·DateOct 5, 2016

Study shows potential disease treatment in newborns via drug delivery to amniotic fluid

Researchers at Rosalind Franklin University and Oregon Health & Science University developed a breakthrough study on treating congenital diseases in utero using antisense oligonucleotides injected into the amniotic cavity. The procedure resulted in targeted alteration of gene expression for up to a month after birth.

SourceRosalind Franklin University of Medicine and Science·JournalNucleic Acids Research·DateOct 5, 2016

Heavy hitters: Obesity rate soars among professional baseball players

Professional baseball players have seen a significant increase in weight and obesity over the last quarter century. The majority of athletes were within the normal BMI range for over 100 years, but around 1991, their average BMI began to rise, with nearly 80% now falling into the overweight or obese category.

SourcePenn State·JournalObesity Research & Clinical Practice·DateOct 5, 2016

Study shows infants pay more attention to native speakers

A study published in Frontiers in Psychology found that infants as young as 5 months old give more attention to objects presented by their native speaker. This preference for native language is thought to aid infants' quick acquisition of societal knowledge and cultural adaptation.

SourceFrontiers·JournalFrontiers in Psychology·DateOct 5, 2016

A better blood sugar test for diabetes

A new blood sugar test method developed by the American Association for the Advancement of Science (AAAS) has been shown to cut diagnostic errors by more than 50% compared to current tests. The technique, which takes into account the age of red blood cells, offers personalized diabetes monitoring for over 400 million diabetics worldwide.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience Translational Medicine·DateOct 5, 2016

New imaging method could enable dentists to detect and heal tooth cavities much earlier

A new imaging device uses long-wavelength infrared imaging to detect small thermal radiation emitted from dental caries, allowing for earlier diagnosis and potential reversal. The tool has the benefits of being noncontact, noninvasive, and low-cost, with great potential as a commercially viable diagnostic imaging device.

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Biomedical Optics·DateOct 5, 2016

Low lead levels in children negatively affect test scores

A new study using data from Rhode Island's lead-abatement program and repeated blood lead level tests found that low reading scores among preschoolers can predict lower scores in subsequent years. The study suggests that lead exposure may contribute to the persistence of gaps in test scores between children from different socioeconomic...

Food scientists: We can detect much more food fraud

Researchers from the University of Copenhagen have reviewed the use of NIR spectroscopy to detect food fraud in Current Opinion in Food Science. The method can reveal far more food fraud than current methods, including intentional misrepresentation and undeclared introduction of cheaper substances. By examining large quantities of raw ...

SourceUniversity of Copenhagen - Faculty of Science·JournalCurrent Opinion in Food Science·DateOct 5, 2016

Discovery: A new form of light

A team of scientists from the University of Vermont and Dartmouth College have discovered a new way that some molecules can make a luminescent glow, breaking Kasha's Rule. The newly discovered pathway to creating light may prove useful in industrial materials, LEDs, and biomedical imaging.

SourceUniversity of Vermont·JournalNature Chemistry·DateOct 5, 2016

How much does that fertilizer REALLY cost?

Researchers from the University of Minnesota Institute on the Environment have proposed a framework that accounts for the damages caused by reactive nitrogen, estimating the dollars-and-cents cost of nitrogen pollution. The tool will help integrate nitrogen costs into decisions made by agencies and groups.

SourceUniversity of Minnesota·JournalScience Advances·DateOct 5, 2016

Researchers modify yeast to show how plants respond to a key hormone

Researchers have developed a novel toolkit based on modified yeast cells to tease out how plant genes and proteins respond to auxin, the most ubiquitous plant hormone. The system revealed the basic 'code' of auxin signaling, including how specific combinations of repressing or activating proteins can bind to auxin, DNA, and one another.

SourceUniversity of Washington·JournalProceedings of the National Academy of Sciences·DateOct 5, 2016

Solving the problem of glare

Researchers have developed innovative methods to counteract glare and reduce unwanted light in various imaging applications, including microscopy, biomedicine, and astronomy. These new approaches use modified light to minimize glare, offering a promising solution for improving image quality.

SourceOptica·JournalOptica·DateOct 5, 2016

EBV-derived microRNAs silence immune alarm signals of the host cell

Scientists at Helmholtz Zentrum München discovered a mechanism by which EBV virus suppresses alarm signals sent out by infected cells. MicroRNAs made by the virus block production of proteins that would ring the alarm, rendering killer T cells and helper T cells inactive.