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Science News Archive July 2017 - Page 32


Page 32 of 37

How plants grow like human brains

Salk scientists discovered that mathematical rules governing plant growth are similar to brain cell connections. The team used 3D laser scanning to analyze plant architecture and found a Gaussian branch density function, suggesting universal rules of logic governing branching growth across biological systems.

SourceSalk Institute·JournalCurrent Biology·DateJul 6, 2017

For rodents, seeing is believing

Researchers found that rats use local visual cues more than idiothetic cues when navigating through identical environments in darkness. Place cell activity indicated that animals were unaware of separate environments, suggesting reliance on visual cues over directional sense.

SourceRuhr-University Bochum·JournalFrontiers in Behavioral Neuroscience·DateJul 6, 2017

Snakebites cost Sri Lanka more than $10 million

A new study found that snakebites in rural Sri Lanka result in significant economic losses for individuals and the healthcare system. The annual costs are estimated at over $10 million, with victims experiencing median out-of-pocket costs of $11.82 and a loss of income of up to $33.21.

SourcePLOS·JournalPLOS Neglected Tropical Diseases·DateJul 6, 2017

Birds' migration genes are conditioned by geography

A new study found that willow warblers' genetic make-up determines their migration patterns depending on where they breed in the summer. The researchers discovered significant differences in over 200 genes between birds breeding in southern and northern Sweden, Finland, and the Baltic States.

SourceLund University·JournalEvolution Letters·DateJul 6, 2017

Immune system cell clones created before birth may last for decades

Researchers found that identical twins share more T-cell clone receptors than expected due to potential exchange of T cells through cord blood before birth. This phenomenon suggests that some immune system cell clones created before birth can persist for about 40 years, shedding light on the diversity of T cell receptors in adults.

SourcePLOS·JournalPLOS Computational Biology·DateJul 6, 2017

Antioxidants against sepsis

Korean scientists report that ceria-zirconia nanoparticles act as effective scavengers of oxygen radicals, promoting a greatly enhanced surviving rate in sepsis model organisms. The nanoparticles accumulate in organs where severe immune responses occur and successfully eradicate reactive oxygen species.

SourceWiley·JournalAngewandte Chemie International Edition·DateJul 6, 2017

Falls lead to declines in seniors

A recent study found that elderly patients who visit emergency departments due to falls are at risk for adverse events, including additional falls, hospitalization, and death within 6 months. The study highlights the importance of educating patients on how to prevent falls after discharge from the emergency department.

SourceAmerican College of Emergency Physicians·JournalAnnals of Emergency Medicine·DateJul 6, 2017

Mothers often distracted during breast and bottle feeding

A new study found that distractions occurred in almost half of feedings, with technology-based distractions being the most common. Mothers enrolled in WIC reported better feeding interactions, but frequent engagement in distractions was predicted by having more children or certain infant characteristics.

SourceElsevier·JournalJournal of Nutrition Education and Behavior·DateJul 6, 2017

Two significant warming intervals in southern China since 1850

Scientists reconstructed annual temperature anomaly in southern China from 1850-2009 using high-resolution temperature proxies. The results show robust centennial warming and a first rapid cooling followed by significant warming intervals, with the most recent being from 1970, featuring unprecedented warmth rates.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateJul 6, 2017

A computer that reads body language

Researchers at Carnegie Mellon University developed a computer that can understand body poses and movements of multiple people in real-time, including finger poses, using a single camera and laptop. This enables new ways for people and machines to interact, such as more natural communication with computers by pointing at objects.

Role of cooperativity in hydrophobic interactions revealed in real-time monitoring

Scientists have made a groundbreaking discovery using real-time monitoring to quantify cooperativity in hydrophobic interactions, demonstrating its critical role in stabilizing macromolecular assembly. The study's innovative microfluidic device enables precise tracking of solute molecule aggregation at sub-microsecond timescales.

SourceHong Kong University of Science and Technology·JournalNature Communications·DateJul 6, 2017

Sorting complicated knots

Researchers from IBS Center for Geometry and Physics introduce a new mathematical operation to catalog Legendrian singular knots, crucial for understanding complex 3D spaces like our universe. The study aims to explore the fascinating possibilities of 3D spaces and provide a tentative list of all possible shapes.

SourceInstitute for Basic Science·JournalJournal of Symplectic Geometry·DateJul 6, 2017