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Science News Archive 2019 - Page 71


Page 71 of 486

Shortened sleep may negatively affect women's bone health

A recent study found that postmenopausal women who slept 5 hours or less per night had lower bone mineral density at all four sites assessed. Women reporting 5 hours or less per night were also at higher risk of experiencing low bone mass and osteoporosis, particularly in the hips and spine.

SourceWiley·JournalJournal of Bone and Mineral Research·DateNov 6, 2019

Membrane intercalation enhances photodynamic bacteria inactivation

Researchers have developed a new assembly that enhances photodynamic inactivation of bacteria, achieving significantly improved efficiency against gram-negative E. coli. The assembly combines a photosensitizer and a membrane-intercalating peptide, resulting in nearly 0% survival rate of E. coli upon light irradiation.

SourceChinese Academy of Sciences Headquarters·JournalProceedings of the National Academy of Sciences·DateNov 6, 2019

Factors during pregnancy may affect early childhood weight

A study of 71,892 children born between 2007-2011 found strong associations between pre-pregnancy obesity in mothers and their children's high body mass index between ages two and six. Modest links were also identified with maternal diabetes and excessive weight gain during pregnancy.

SourceWiley·JournalPediatric Obesity·DateNov 6, 2019

Jaw-some wombats may be great survivors

A recent study reveals that wombat jaws appear to change in relation to their diets, allowing them to adapt to tougher plants due to climate change. The research suggests that individual shapes of wombat skulls are related to an individual's diet and feeding preferences, enabling short-term adaptations.

SourceUniversity of Queensland·JournalFrontiers in Zoology·DateNov 5, 2019

Web-based calculator predicts risk of death, complications from diabetes and obesity

A new web-based calculator predicts a patient's likelihood of dying from complications or experiencing serious health issues due to type 2 diabetes and obesity, whether they undergo metabolic surgery or continue with standard medical therapy. The Individualized Diabetes Complication Risk Calculator provides a personalized risk score ba...

Perovskite solar cells get an upgrade

Rice University scientists have overcome a major hurdle keeping perovskite-based solar cells from achieving mainstream use by engineering defects and retaining efficiency. They replaced lead with indium, resulting in cells that can be made in open air and last for months.

SourceRice University·JournalAdvanced Materials·DateNov 5, 2019

What we can learn from Indigenous land management

A new report highlights the importance of incorporating Indigenous decision-making and worldviews into environmental management, driving innovative solutions to pressing issues. By recognizing Indigenous sovereignty and relational ontologies, institutions can enhance sustainable approaches to land and water management.

SourceFlinders University·JournalGeographical Research·DateNov 5, 2019

Does climate change affect real estate prices? Only if you believe in it

A new study from the UBC Sauder School of Business reveals that homes projected to be underwater due to climate change sell for roughly 7% more than comparable homes in areas where people don't believe in climate change. The difference is significant, with implications for real estate investors and homeowners.

SourceUniversity of British Columbia - Sauder School of Business·JournalReview of Financial Studies·DateNov 5, 2019

Straight from the source

Researchers at Washington University in St. Louis have uncovered a novel process by which phototrophic microbes can accept electrons from solid and soluble substances. This discovery, published in mBio, could lead to the development of bacterial platforms that feed on electricity and carbon dioxide to produce valuable compounds.

STD crowd-diagnosis requests on social media

Researchers analyzed Reddit postings to understand the demand for crowd-diagnosis of sexually transmitted diseases. The study found that a significant proportion of requests were made after consulting with healthcare professionals, raising questions about the role of social media in healthcare decision-making.

SourceJAMA Network·JournalJAMA·DateNov 5, 2019

Behavioral therapy for insomnia shows benefit for children with autism and their parents

A pilot study found that cognitive behavioral therapy significantly improved sleep quality and behavior in children with autism spectrum disorder (ASD), as well as reduced parent fatigue. After eight sessions of therapy, 85% of the children no longer experienced insomnia, and their parents reported better sleep and reduced fatigue.

SourceUniversity of Missouri-Columbia·JournalAutism Research·DateNov 5, 2019