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Science News Archive September 2017 - Page 18


Page 18 of 39

Black babies more likely to have nursing care missed in their NICU stay

A new study found that hospitals caring for high fractions of black infants are more likely to miss critical nursing care, which can affect survival and development. This missed care often involves teaching and counseling parents, as well as preparation for discharge, highlighting the need for supportive care environments with adequate...

SourceUniversity of Pennsylvania School of Nursing·JournalHealth Services Research·DateSep 18, 2017

Deep roots in plants driven by soil hydrology

A global synthesis study led by Rutgers University professor Ying Fan Reinfelder shows strong links between root depth and local soil and water conditions. Plants adapt to droughts by shifting to wetter environments through seed dispersal.

SourceRutgers University·JournalProceedings of the National Academy of Sciences·DateSep 18, 2017

A new approach to ultrafast light pulses

Scientists at MIT and their collaborators have developed a new approach to ultrafast light pulses by coupling molecular aggregates with thin layers of metals like silver. This enhancement increases the material's response time tenfold, making it suitable for applications in photonic chips and signal processing.

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateSep 18, 2017

New hope for limiting warming to 1.5°C

Researchers from the University of Oxford and international partners found that achieving the Paris Agreement's goal of 1.5°C global warming requires more ambitious emission cuts than initially estimated. The study suggests that limiting total CO2 emissions to below 240 billion tonnes could achieve this goal.

SourceUniversity of Oxford·JournalNature Geoscience·DateSep 18, 2017

Optical and electrical bistability study sheds light on next-gen high speed data transfer

A US-based research team has demonstrated optical and electrical bistability for switching in a single transistor, offering potential solutions to the bandwidth limitations of electronic computers. The study showcases the control of transistor laser electrical and optical bistabilities by base current and collector voltage.

SourceAmerican Institute of Physics·JournalJournal of Applied Physics·DateSep 18, 2017

Metabolism switch signals end for healing hearts

Scientists have identified a metabolic pathway that governs the loss of the human heart's ability to regenerate tissue. This discovery could potentially lead to the development of drugs to reactivate regeneration in adult hearts, allowing them to repair muscle damage caused by heart attacks and recover full pumping capacity.

SourceUniversity of Queensland·JournalProceedings of the National Academy of Sciences·DateSep 18, 2017

Study uncovers markers for severe form of multiple sclerosis

Researchers identified macrophage migration inhibitory factor (MIF) and its related protein D-dopachrome tautomerase as closely related cytokines associated with progressive MS. A genetic test could identify patients at risk of developing the disease, accelerating drug development for precision medicine.

SourceYale University·JournalProceedings of the National Academy of Sciences·DateSep 18, 2017

Tug of war between Parkinson's protein and growth factor

Researchers discovered that alpha-synuclein, a protein involved in Parkinson's disease, blocks signals from the important brain growth factor BDNF. This 'tug of war' between alpha-synuclein and BDNF affects brain cells' survival and explains why dopamine-producing neurons are more vulnerable to degeneration.

SourceEmory Health Sciences·JournalProceedings of the National Academy of Sciences·DateSep 18, 2017

Taking a break from dieting may improve weight loss

University of Tasmania researchers found that taking a 2-week break during dieting can lead to greater weight loss and less weight regain. The study showed participants who alternated between dieting and regular eating for 30 weeks lost an average of 8 kg more than those who continued with continuous dieting.

SourceUniversity of Tasmania·JournalInternational Journal of Obesity·DateSep 18, 2017

Cells programmed like computers to fight disease

Researchers at the University of Warwick have discovered a way to program cells using genetic engineering, enabling them to control actions such as fighting disease. The technique uses a common molecule called RNA, which can be engineered into sequences similar to computer code to instruct cells to perform specific actions.

SourceUniversity of Warwick·JournalNucleic Acids Research·DateSep 18, 2017

Life-long blood production depends on hundreds of cells that form prior to birth

Researchers at St. Jude Children's Research Hospital found that hundreds of precursor cells, not just a handful, are involved in establishing the blood system before birth. This discovery has clinical implications, as understanding how the blood system emerges can help unravel the origins of disease and identify susceptible cells.

SourceSt. Jude Children's Research Hospital·JournalNature Cell Biology·DateSep 18, 2017

More evidence of water on Mars

Researchers have found river deposits on Mars that date back over 3.5 billion years, indicating a surface environment capable of supporting liquid water. The study suggests that large fluctuations in the size of the water body forced the formation of paleo-valleys, revealing long-term stability in the controlling water body.

SourceGeological Society of America·JournalGeological Society of America Bulletin·DateSep 18, 2017

Urine output to disease: Study sheds light on the importance of hormone quality control

A new study reveals that endoplasmic reticulum-associated degradation plays a crucial role in controlling hormone levels and systemic water balance. The research found that misfolded proteins can lead to hormone imbalance and diseases such as diabetes insipidus, highlighting the importance of protein folding and quality control.

SourceMichigan Medicine - University of Michigan·JournalJournal of Clinical Investigation·DateSep 18, 2017

HIV-AIDS: Following your gut

A team of researchers at the University of Montreal Hospital Research Centre has discovered a molecule that stimulates HIV replication in CD4 T cells located in the gut. They have also started testing medications to block this replication and decrease inflammation of the intestinal mucosa, which could lead to a functional cure for HIV.

SourceUniversity of Montreal·JournalJCI Insight·DateSep 18, 2017

Vulnerability of vertebrates

The study reveals an association between body size and extinction risk among vertebrate species. The results indicate that lightest vertebrates are most at risk of habitat degradation due to human activities, while the heaviest vertebrates face a higher risk of direct killing by humans.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateSep 18, 2017