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Science News Archive October 2017 - Page 17


Page 17 of 43

The microbial anatomy of an organ

Researchers developed a 3D spatial visualization tool to understand the effects of chemicals on diseased organs in context of microbes. The tool helps advance targeted drug delivery for cystic fibrosis and other conditions where medications struggle to penetrate, revealing new insights into microbial anatomy.

SourceUniversity of California - San Diego·JournalCell Host & Microbe·DateOct 19, 2017

Field trips of the future?

UCSB biologist Douglas McCauley explores the pros and cons of using virtual and augmented reality in environmental science education. He argues that while VR and AR have potential upsides, such as enhanced experiences and simulations, they may also detract from core values like face-to-face interaction and direct observation of nature.

Feel fuller, longer with mushrooms

A new study found that eating a mushroom-rich breakfast resulted in less hunger and a greater feeling of fullness compared to a meat breakfast. The study also showed that mushrooms can be as satiating as meat when protein levels are matched, indicating potential benefits for weight management and overall wellness.

SourceMushroom Council·JournalAppetite·DateOct 19, 2017

Discovery lights path for Alzheimer's research

Rice University researchers have identified a specific binding site on the amyloid beta peptide, which could facilitate the development of better drugs to treat Alzheimer's disease. The probe uses light activation to catalyze oxidation of the protein, preventing it from aggregating in the brains of patients.

SourceRice University·JournalChem·DateOct 19, 2017

Researchers find shifting relationship between flexibility, modularity in the brain

A new study by Rice University researchers reveals a strong negative correlation between the brain's flexibility and modularity, with highly modular brains showing low flexibility. The study presents a theoretical framework to explain this relationship, suggesting that flexibility and modularity tap into different cognitive processes.

SourceRice University·JournalFrontiers in Human Neuroscience·DateOct 19, 2017

Gut bacterium indirectly causes symptoms by altering fruit fly microbiome

A new study found that CagA, a protein produced by the bacterium Helicobacter pylori, can alter the population of microbes living in the fruit fly gut, leading to disease symptoms. The researchers suggest that manipulating the balance of microbes in the gut may be able to mitigate the harmful effects of infection with H. pylori.

SourcePLOS·JournalPLOS Pathogens·DateOct 19, 2017

IDSA Infectious Diarrhea guidelines recommend when to test, when to treat

New culture-independent tests are more sensitive than traditional methods in detecting the cause of infectious diarrhea. However, these tests may detect multiple organisms, requiring infectious disease expertise for interpretation. The IDSA guidelines recommend testing children under 5, elderly individuals, and those with specific symp...

SourceInfectious Diseases Society of America·JournalClinical Infectious Diseases·DateOct 19, 2017

Maternal diet may program child for disease risk, but better nutrition later can change that

A study from the University of Illinois shows that a post-weaning low-fat diet can reverse epigenetic changes caused by a maternal high-fat diet, reducing the risk of diseases such as type 2 diabetes. This suggests that dietary changes later in life can affect gene expression and metabolic pathways.

Scientists pinpoint jealousy in the monogamous mind

A study published in Frontiers in Ecology and Evolution found that jealousy leads to increased brain activity in areas associated with social pain and pair bonding in male coppery titi monkeys. The researchers also observed heightened activity in the lateral septum, a region involved in forming pair bonds in primates.

SourceFrontiers·JournalFrontiers in Ecology and Evolution·DateOct 19, 2017

Curve-eye-ture: How to grow artificial corneas

Researchers developed a new technique to grow artificial corneas with improved transparency and strength by controlling the alignment of cells in a dish. This breakthrough could provide a solution for the shortage of donated corneal tissues and offer a practical alternative to plastic corneas.

SourceNewcastle University·JournalAdvanced Biosystems·DateOct 19, 2017

Dogs are more expressive when someone is looking

New research from the University of Portsmouth found that dogs produce more facial expressions when humans are looking at them. The study, led by Dr Juliane Kaminski, showed that dogs use these expressions to communicate with humans and not just due to excitement. Brow raising was the most commonly used expression in this research.

SourceUniversity of Portsmouth·JournalScientific Reports·DateOct 19, 2017

Researchers demonstrate new ways to achieve selectivity for biomarkers in bioelectronics

Engineers at the University of Arizona have developed a new method to control charge transfer rate from an organic polymer to a biomarker molecule, advancing the field of organic bioelectronics. Their findings show that electron transfer rate depends directly on applied voltage and demonstrate Marcus' theory of inverted charge transfer.

SourceUniversity of Arizona College of Engineering·JournalNature Communications·DateOct 19, 2017

Water striders illustrate evolutionary processes

Researchers have discovered two new genes responsible for the formation of fan-like structures on the legs of a specific water strider species. The findings suggest that genetic mutations can lead to the emergence of new structures that affect an organism's lifestyle and access to ecological niches.

SourceCNRS·JournalScience·DateOct 19, 2017

Ice stream retreats under a cold climate

A research article reveals that a warmer ocean surface in central-eastern Baffin Bay triggered the ice retreat of Jakobshavn Isbrå ice stream during the Younger Dryas period. The study used marine fossil diatoms to reconstruct past sea surface conditions, finding warmer sea surface temperatures and less-extensive sea ice cover.

SourceUniversity of Helsinki·JournalNature Communications·DateOct 19, 2017

What characteristics do school shooters share?

A study by Kathryn Farr found that school shooters often experience social shunning, bullying, and rejection due to their perceived masculine struggles. Schools can help prevent rampage shootings by addressing adolescent masculinity issues through in-school services, discussion-based forums, and curriculum changes.

SourceSpringer·JournalGender Issues·DateOct 19, 2017