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Science News Archive November 2019 - Page 8


Page 8 of 41

Screen time patterns of kids

A study analyzed nearly 3,900 children's screen time use and its association with parental education levels and child sex. The findings highlight the importance of considering sociodemographic characteristics when examining screen time patterns.

SourceJAMA Network·JournalJAMA Pediatrics·DateNov 25, 2019

Cellular origins of pediatric brain tumors identified

A research team identified that several types of highly aggressive pediatric brain tumors originate from stalled development of progenitor cells in the pons and forebrain. The findings represent a significant advance in understanding these diseases, which are the leading cause of cancer-related deaths in children.

SourceMcGill University·JournalNature Genetics·DateNov 25, 2019

Air pollution linked to higher glaucoma risk

A new UCL-led study found that living in a more polluted area is associated with a greater likelihood of having glaucoma, a debilitating eye condition that can cause blindness. People in areas with high levels of fine particulate matter pollution were 6% more likely to report having glaucoma than those in less-polluted areas.

SourceUniversity College London·JournalInvestigative Ophthalmology & Visual Science·DateNov 25, 2019

New discovery in C. difficile biology could lead to treatments for dangerous infections

A new study published in Nature Microbiology has discovered that epigenetic chemical modifications play a crucial role in the survival and spread of C. difficile bacteria. The research found that inhibiting these modifications can reduce bacterial populations by up to 100 times, paving the way for potential treatments for this deadly i...

Researchers reach milestone in quantum standardization

Cycle benchmarking provides a solution to compare the capabilities of quantum processors across different architectures and applications. Researchers have made significant progress in characterizing errors in quantum systems, paving the way for establishing universal standards for measuring quantum computer performance.

SourceUniversity of Waterloo·JournalNature Communications·DateNov 25, 2019

Changes in oxygen concentrations in our ocean can disrupt fundamental biological cycles

Researchers found that a decline in ocean oxygen can break down feedback mechanisms controlling the marine nitrogen cycle, which is essential for all forms of life. The team used a data-constrained earth system model to show that extreme deoxygenation can lead to a collapse of the ocean's bioavailable nitrogen inventory.

SourceUniversity of Bristol·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

A missing link in haze formation

A team of researchers from the University of Pennsylvania has discovered a crucial link between alcohol molecules and haze formation. Alcohols like methanol reduce particle formation by consuming sulfur trioxide, converting it to more sticky compounds that promote growth.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·DateNov 25, 2019

Hops compounds help with metabolic syndrome while reducing microbiome diversity

Researchers found that xanthohumol and its derivatives can decrease microbiome diversity while reducing inflammation and improving energy metabolism in laboratory animals with high-fat diets. The study suggests that hops compounds may help combat metabolic syndrome by altering bile acid metabolism and changing gut microbiota.

SourceOregon State University·JournalMolecular Nutrition & Food Research·DateNov 25, 2019

Using gene scissors to detect diseases

A team of scientists at the University of Freiburg has created a microfluidic chip that recognizes small RNA fragments, enabling faster and more precise disease diagnosis. The CRISPR biosensor can detect increased levels of miRNA in blood samples from patients with brain tumors.

SourceUniversity of Freiburg·JournalAdvanced Materials·DateNov 25, 2019

Otago scientist excavates medieval Uzbek cemetery

A bioarcheologist excavated a medieval Uzbek cemetery, discovering evidence of degenerative joint disease and healed fractures that suggest a heavy workload and level of care within the community. The dig site provides insight into how people adapted to harsh desert environments and interacted with other communities along trade routes.

Cancer patients are at higher risk of dying from heart disease and stroke

A new study published in the European Heart Journal found that over one in ten cancer patients die from cardiovascular disease, including heart disease and stroke. The study analyzed data from over 3.2 million US patients diagnosed with cancer between 1973 and 2012, revealing that certain types of cancer, such as breast and prostate ca...

SourceEuropean Society of Cardiology·JournalEuropean Heart Journal·DateNov 24, 2019