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Science News Archive May 2019 - Page 36


Page 36 of 42

Study reveals final fate of levitating Leidenfrost droplets

A team of researchers has detailed the final fate of levitating Leidenfrost droplets, finding that smaller drops escape and larger ones explode violently. The study's findings suggest that contaminants play a crucial role in determining the droplets' behavior, with minute quantities having significant effects on their lifetime.

SourceBrown University·JournalScience Advances·DateMay 6, 2019

UNH researchers discover new strain of canine distemper in wild animals in New Hampshire, Vermont

Researchers have identified a new strain of canine distemper virus in wild animals in New Hampshire and Vermont, which is highly contagious to domesticated dogs. The virus has been found in eight infected mammals, including gray foxes, raccoons, and skunks, and is significantly distinct from vaccine strains.

SourceUniversity of New Hampshire·JournalJournal of Veterinary Diagnostic Investigation·DateMay 6, 2019

Low-cost intervention boosts undergraduate interest in computer science

A recent study found that an online growth mindset intervention increased interest in computer science among undergraduates, with no direct impact on performance. The intervention led to a positive, indirect effect on students' final grades, highlighting the value of fostering a growth mindset in computer science education.

SourceNorth Carolina State University·JournalSocial Psychological and Personality Science·DateMay 6, 2019

Unexpectedly big wins improve two kinds of memory

Brown University researchers discovered that unexpectedly good outcomes enhance the memory of specific events, which may have implications for treating individuals with depression. The study found that participants were better at remembering specific images from rounds where they had a high likelihood of winning.

SourceBrown University·JournalNature Human Behaviour·DateMay 6, 2019

Bacteria causing infections can be detected more rapidly

A team of researchers at POSTECH has developed a fluorescent probe called BacGo that can detect Gram-positive bacteria precisely and promptly. The probe is more sensitive than the traditional Gram staining method, which has several limitations, including slow detection and limited selectivity against Gram-positive bacteria.

SourcePohang University of Science & Technology (POSTECH)·JournalAngewandte Chemie International Edition·DateMay 6, 2019

Ash dieback is predicted to cost £15 billion in Britain

A new study predicts that Ash dieback will have a devastating impact on the UK's economy, with estimated costs of £15 billion over the next decade. The disease is expected to kill 95-99% of ash trees in Britain, leading to significant losses in ecosystem services such as water and air purification and carbon sequestration.

SourceUniversity of Oxford·JournalCurrent Biology·DateMay 6, 2019

Tip sheet: Studies on opioid-prescribing practices

Researchers found that certain surgeries, such as colorectal and cardiovascular surgeries, increase the likelihood of patients continuing to refill opioid prescriptions. Generalist nurse practitioners and physician assistants may also be overprescribing opioids, suggesting a need for education and better oversight.

SourceJohns Hopkins Medicine·JournalThe American Journal of Surgery·DateMay 6, 2019

Kinship and violence in Neolithic Poland

A genomic study of a mass grave in Neolithic Poland reveals an extended family structure, with mothers and children together, but older males absent. The analysis suggests that the massacre may have been linked to the expansion of Corded Ware groups, supporting the notion that violence was a common response to population pressure.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateMay 6, 2019

Five things to know about physician suicide

Physician suicide is a serious issue with increased suicidal ideation beginning as early as medical school, nearly 1 in 4 students reporting suicidal thoughts within the last 12 months. Suicidal physicians face unique barriers to care due to confidentiality and stigmatization concerns from peers, employers, and licensing bodies.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateMay 6, 2019

Secrets of the 'blue supergiant' revealed

Astronomers observed blue supergiants for the first time using data from NASA space telescopes, discovering wave patterns on their surface that reveal properties of these stars. The discoveries confirm two types of waves, providing new prospects for studying massive stars.

SourceNewcastle University·JournalNature Astronomy·DateMay 6, 2019

Blue supergiant stars open doors to concert in space

Researchers discovered that almost all blue supergiants shimmer in brightness due to waves on their surface, enabling the study of their internal physics and chemistry. This breakthrough enables astronomers to probe the progenitors of supernovae from a novel perspective.

SourceKU Leuven·JournalNature Astronomy·DateMay 6, 2019

Direct dispensing of naloxone by pharmacists can cut opioid overdose deaths, study finds

A new study from the RAND Corporation found that allowing pharmacists to dispense naloxone without a physician's prescription can sharply reduce fatal opioid-related overdoses. States that adopted laws enabling direct dispensing of naloxone by pharmacists saw a significant decrease in overdose deaths, with an average reduction of 27% d...

SourceRAND Corporation·JournalJAMA Internal Medicine·DateMay 6, 2019

Filming how our immune system kills bacteria

Researchers use atomic force microscopy to track the formation of deadly holes in bacterial surfaces, discovering a bottleneck that prevents harm to human cells. The study provides insight into how the immune system kills bacteria and may guide the development of new therapies harnessing the immune system against bacterial infections.

SourceUniversity College London·JournalNature Communications·DateMay 6, 2019

Bullying among adolescents hurts both the victims and the perpetrators

A new study reveals that bullying has a profound impact on both victims and perpetrators, leading to increased substance abuse and social issues. Research found that girls are more likely to internalize problems and exhibit psychosomatic complaints, while boys and girls are equally likely to engage in risk behaviors after being bullied.

SourceMartin-Luther-Universität Halle-Wittenberg·JournalChildren and Youth Services Review·DateMay 6, 2019

Social media has limited effects on teenage life satisfaction

A large-scale Oxford Internet Institute study of UK teenagers found that social media use had limited effects on life satisfaction, with some bidirectional effects observed. The researchers used improved data and statistical approaches to test the relationship between social media use and life satisfaction, finding modest trends.

SourceUniversity of Oxford·JournalProceedings of the National Academy of Sciences·DateMay 6, 2019