Add BrightSurf on Google Email

Science News Archive November 2019 - Page 40


Page 40 of 41

30-day death rates after emergency department visits

Researchers analyzed 30-day mortality rates following ED visits, finding a significant increase in deaths among elderly patients. The study used Medicare data from 2009 to 2016 and found that the 30-day death rate for emergency department visits increased significantly during this period.

SourceJAMA Network·JournalJAMA Internal Medicine·DateNov 4, 2019

How much do we lie when we have sex on the brain?

A study published in the Journal of Experimental Social Psychology found that people are more likely to change their attitudes and engage in deceptive self-presentation when they are sexually primed. Participants who were exposed to sexual stimuli were more likely to express agreement with a contrary opinion and conform to a stranger's...

SourceUniversity of Rochester·JournalJournal of Experimental Social Psychology·DateNov 4, 2019

Too good to be true?

A new study from Harvard Medical School suggests that an overall decline in hospital admissions may have driven the observed drop in readmissions, rather than the pay-for-performance program. The findings contradict prevailing interpretations and call into question the program's effectiveness.

SourceHarvard Medical School·JournalHealth Affairs·DateNov 4, 2019

Discriminating diets of meat-eating dinosaurs

A new study by University of Bristol scientists reveals that meat-eating theropod dinosaurs had broadened their food base. The researchers analyzed the jaws and teeth of 83 theropod dinosaurs, including giants and small ones, to describe every possible jaw shape and tooth shape in terms of about 80 measurements.

SourceUniversity of Bristol·JournalPalaeontology·DateNov 3, 2019

New way to date rocks

University of Queensland scientists have identified a new reference material and used a state-of-the-art instrument to better date rock formations in central Asia. This new method could help establish the relationship between historical episodes of magma activity and mineral accumulation.

SourceUniversity of Queensland·JournalACM SIGSAM Bulletin·DateNov 3, 2019

New printer creates extremely realistic colorful holograms

The new CHIMERA printer produces digital 3D holograms with unprecedented detail and realistic color, created using low-cost commercial lasers and high-speed printing. The printer can produce wide-field-of-view holograms with full parallax, ideal for applications such as museum displays and architectural models.

SourceOptica·JournalApplied Optics·DateNov 1, 2019

Online tool speeds response to elephant poaching by tracing ivory to source

A new online tool uses an interactive database of genetic information to help authorities quickly identify the origin of confiscated ivory from African elephants. The Loxodonta Localizer matches genetic sequences from poached ivory to those stored in the database, providing a faster and cheaper analysis than current approaches.

Here's something that will raise your blood pressure

Researchers found that activating the apelin receptor led to increased blood pressure due to vasoconstriction, a process also affected by the α1A-adrenergic receptor. The study suggests a coordinated mechanism controlling blood vessel contraction and may support therapy development for vascular stenosis and vasospasm.

SourceUniversity of Tsukuba·JournalThe Journal of Biochemistry·DateNov 1, 2019

What Reddit's basketball fans can tell us about online discourse

A recent study on Reddit's basketball fans reveals that mixing fans of different teams can lead to a backfire effect, resulting in more negative comments and hate speech. The researchers found that when fans interact with opposing groups online, their language patterns deteriorate, becoming increasingly negative and confrontational.

SourceUniversity of Colorado at Boulder·JournalProceedings of the ACM on Human-Computer Interaction·DateNov 1, 2019

Harvesting genes to improve watermelons

An international team of researchers has created a comprehensive watermelon genome resource to help plant breeders increase the domestic fruit's quality and ability to thrive during an era of climate change. The resource includes genetic insights into wild watermelon species and their potential for disease resistance, paving the way fo...

SourceBoyce Thompson Institute·JournalNature Genetics·DateNov 1, 2019