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Science News Archive June 2019 - Page 38


Page 38 of 41

Many kids with pneumonia get unnecessary antibiotics, chest X-rays

A study by Ann & Robert H. Lurie Children's Hospital of Chicago found that nearly 74% of preschool children with community-acquired pneumonia receive unnecessary antibiotics, while 43% undergo chest X-rays despite guidelines against routine use. This overuse contributes to antibiotic resistance and side effects.

SourceAnn & Robert H. Lurie Children's Hospital of Chicago·JournalJournal of the Pediatric Infectious Diseases Society·DateJun 4, 2019

Beta blockers can block the effects of stress and anger in patients prone to emotion-triggered atrial fibrillation

A new study found that beta blockers can reduce the triggering effect of anger and stress on atrial fibrillation in patients prone to emotion-triggered AF. Patients taking beta blockers experienced fewer AF episodes, with a reduced pro-arrhythmic effect of anger or stress compared to those not taking these medications.

SourceElsevier·JournalHeartRhythm Case Reports·DateJun 4, 2019

Nanomaterial safety on a nano budget

Researchers at Rice University have developed a cheap and clean method to handle carbon nanotubes, improving lab safety. The protocol involves proper attire, containment systems, and efficient transfer procedures, making it possible for labs to safely work with these materials on a large scale.

SourceRice University·JournalSN Applied Sciences·DateJun 3, 2019

Vitamin D could help cancer patients live longer

A recent study found that taking vitamin D for at least three years may lower the risk of death among cancer patients. The researchers analyzed data from over 79,000 patients and discovered a statistically significant difference in mortality rates between those who took vitamin D and those who received a placebo.

SourceMichigan State University·JournalJournal of Clinical Oncology·DateJun 3, 2019

Is 'clean eating' just dirty rhetoric?

A study by Dickinson College researchers finds that young people's perceptions of 'clean eating' are overwhelmingly positive, but may signal a risk for eating disorders. The diet fad is often associated with extreme strategies like eliminating gluten or dairy.

SourceDickinson College·JournalJournal of Eating Disorders·DateJun 3, 2019

Fathers aid development of larger brains

A study by University of Zurich researchers found that fathers' reliable care is crucial for brain development, while help from other group members is less essential. This discovery explains why some animal species with large-brained mammals have bigger brains due to their fathers' dependable assistance.

SourceUniversity of Zurich·JournalBehavioral Ecology and Sociobiology·DateJun 3, 2019

Emotions from touch

Researchers created a database of 21 textures associated with different emotions, revealing soft surfaces tend to evoke pleasant feelings while rough ones elicit unpleasant sensations. The study also found people with high alexithymia levels experience more intense negative emotions when interacting with certain textures.

SourceNational Research University Higher School of Economics·JournalConsciousness and Cognition·DateJun 3, 2019

Six fingers per hand

A study found that people with polydactyly, having six fingers per hand, exhibit improved motor skills and ability to perform movements with one hand. The researchers discovered dedicated brain areas controlling the extra finger's movement, allowing for versatile manipulation.

SourceUniversity of Freiburg·JournalNature Communications·DateJun 3, 2019

Hormone produced during pregnancy repurposed to treat painful joint condition

Researchers repurpose pregnancy hormone relaxin to alleviate symptoms of arthrofibrosis, a painful and debilitating joint condition, restoring range of motion and improving tissue health in an animal model. The findings suggest that relaxin could offer relief for millions of people affected by the disease.

SourceBeth Israel Deaconess Medical Center·JournalProceedings of the National Academy of Sciences·DateJun 3, 2019

Combination checkpoint blockade effective in pre-surgical setting for early-stage lung cancers

The combination immunotherapy of nivolumab and ipilimumab met the primary endpoint of the NEOSTAR trial with a 33% overall major pathologic response rate in early-stage lung cancer patients. The treatment was also shown to be effective in reducing tumor viability, with six out of 21 patients achieving a complete pathological response.

New genetic weapons challenge sickle cell disease

A new study uses CRISPR-Cas9 to repair the sickle cell mutation in patients' hematopoietic stem cells, boosting their own protective fetal hemoglobin. The approach showed promising results, with up to 40% of edited cells fixed and a significant increase in fetal hemoglobin expression.

SourceRice University·JournalNucleic Acids Research·DateJun 3, 2019

To tackle child labor, start with consumers

A new study published in Manufacturing & Service Operations Management found that consumer education campaigns can be an effective countermeasure against child labor in global supply chains. The researchers used game theory to identify strategies that manufacturers and NGOs can use to tackle suppliers' use of child labor.

SourceSingapore Management University·JournalManufacturing & Service Operations Management·DateJun 3, 2019

Hearing through your fingers: Device that converts speech

A proof-of-concept study shows that a simple and inexpensive non-invasive device can improve speech understanding in hearing-impaired individuals and those with normal hearing. The device transforms low-frequency speech signals into tactile vibrations delivered on fingertips.

SourceIOS Press·JournalRestorative Neurology and Neuroscience·DateJun 3, 2019

Mangroves and storm protection

A study analyzed data on 2,000 coastal communities in 23 countries with substantial mangrove areas, finding that even modest coverage can protect economic activity from cyclones. The analysis estimated a permanent loss of 5.4-6.7 months' worth of economic activity for communities with minimal mangrove coverage.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateJun 3, 2019

Oldest flaked stone tools point to the repeated invention of stone tools

Researchers discovered ancient stone tools in Ethiopia, older than previously known evidence, suggesting that humans invented stone tools multiple times throughout history. The tools, dated to around 2.6 million years ago, show a significant shift in tool-making skills and accuracy, highlighting the complex origins of human innovation.

SourceArizona State University·JournalProceedings of the National Academy of Sciences·DateJun 3, 2019