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Science News Archive December 2017 - Page 26


Page 26 of 33

Needle in a haystack

A new method developed by Harvard Medical School researchers can tease out cause-and-effect relationships between gut bacteria and disease, a major hurdle in microbiome research. The approach identified a previously unknown gut microbe that protects against severe colitis.

SourceHarvard Medical School·JournalNature·DateDec 6, 2017

Study: Surgery-related opioid doses can drop dramatically without affecting patients' pain

A new guideline based on patient data and education has been shown to effectively reduce opioid prescribing in surgery patients by up to 66%, while maintaining similar levels of pain control. The study's findings have the potential to significantly impact the national opioid crisis, with estimates suggesting over 13,000 excess pills ha...

What makes a happy working mom?

A happy working mom is one who feels competent and has a warm relationship with her child. Her sense of well-being depends on meeting her own psychological needs, rather than her baby's temperament. Mothers should prioritize their daily needs to interact with their children in a more sensitive and positive way.

SourceSpringer·JournalJournal of Happiness Studies·DateDec 6, 2017

Seizure study sheds light on lasting brain effects in children

A study published in The Lancet Child and Adolescent Health found that prolonged convulsive seizures in childhood can lead to lasting neurological conditions, including epilepsy, learning disabilities, and movement problems. Children with pre-existing neurological issues were more likely to experience chronic problems after a seizure.

SourceUniversity of Edinburgh·JournalThe Lancet Child & Adolescent Health·DateDec 6, 2017

Seeing through walls of unknown materials

Researchers have devised a method to scan walls without prior knowledge of their material composition, exploiting symmetry for effective resolution. This approach enables inexpensive devices to locate conduits, pipes, and wires in construction, with potential applications in security and industry.

SourceDuke University·JournalOptica·DateDec 6, 2017

Go with the flow (or against it)

Researchers at Queen's University have successfully used magnetic fields to direct magnetotactic bacteria against strong currents, opening up the potential for these microbes to deliver pharmaceuticals directly to tumors. The team aims to bind therapeutic drugs to the bacterial bodies and release them once they reach their destination.

SourceQueen's University·JournalSmall·DateDec 6, 2017

Living on thin air -- microbe mystery solved

Researchers have discovered that microbes in Antarctica can scavenge hydrogen, carbon monoxide and carbon dioxide from the air to sustain their energy needs. This discovery has significant implications for the search for life on other planets, suggesting that extra-terrestrial microbes could also rely on trace atmospheric gases.

SourceUniversity of New South Wales·JournalNature·DateDec 6, 2017

Wheat gets boost from purified nanotubes

Researchers at Rice University found that purified carbon nanotubes enhance wheatgrass growth by up to 13% in water solutions. However, contaminated particles can concentrate toxins and hinder plant development. The study highlights the need for understanding nanomaterials as part of a system rather than in isolation.

The human race has peaked

A recent review suggests humans have biological limitations that cannot be exceeded, despite advances in nutrition, medicine and science. Environmental changes, including climate change, could lead to decreased physical abilities and life expectancy.

SourceFrontiers·JournalFrontiers in Physiology·DateDec 6, 2017

New approach measures early human butchering practices

A team led by Purdue University anthropology professor Erik Otárola-Castillo used 3D imaging, shape analysis, and Bayesian statistics to accurately measure animal bone cut marks with an 88 percent success rate. This technique improves upon existing archaeological methods, enabling a more accurate understanding of human evolution.

SourcePurdue University·JournalJournal of Archaeological Science·DateDec 6, 2017

Compound eyes a continuous feature of evolution

Researchers discovered the structure and functioning of a half-billion-year-old fossil trilobite's compound eye, showing similarities with modern compound eyes. The ancient eye consists of 100 subunits with eight sensory cells each, but lacks a lens, suggesting its development may have predated modern forms.

SourceUniversity of Cologne·JournalProceedings of the National Academy of Sciences·DateDec 6, 2017

Researchers 3-D print lifelike artificial organ models

A team of researchers from the University of Minnesota has created lifelike artificial organ models through 3D printing, featuring integrated soft sensors. These patient-specific models can enhance pre-operative practice, allowing surgeons to better plan and execute surgeries, potentially reducing medical errors and saving lives.

SourceUniversity of Minnesota·JournalAdvanced Materials Technologies·DateDec 6, 2017

Brain changes following childhood limb loss may be reversible

A recent study found that certain brain changes following limb amputation in children can be reversed through bilateral hand transplantation. The lead author suggests that the brain preserves functional areas and reactivates them upon recovery of the hands.

SourceWiley·JournalAnnals of Clinical and Translational Neurology·DateDec 6, 2017

What's that smell? The advantage of sniffing

Researchers found that precise timing patterns of brain activity distinguish between airflow-driven mechanical signals and those generated by odors. This discovery demonstrates the neural code underlying olfaction, revealing how neurons differentiate between air-flow information and odor information.

SourceRIKEN·JournalNeuron·DateDec 6, 2017

A new gene therapy transplantation technique could improve treatment of neurodegenerative diseases

A new gene therapy transplantation technique could improve treatment of neurodegenerative diseases by generating genetically engineered microglia-like cells in the brain. This technique has been tested on an experimental model for a metabolic disease and may have future therapeutic applications for other neurodegenerative diseases.

SourceBoston Children's Hospital·JournalScience Advances·DateDec 6, 2017