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Science News Archive August 2020 - Page 7


Page 7 of 45

Hurricanes could be up to five times more likely in the Caribbean if tougher targets are missed

A new study found that extreme hurricane rainfall events in the Caribbean are five times more likely in a warmer world, but meeting Paris Agreement goals could reduce this risk by up to half. The research highlights the urgent need to tackle global warming and recommends targeting resilience funding towards the most at-risk areas.

SourceUniversity of Bristol·JournalEnvironmental Research Letters·DateAug 27, 2020

An improved wearable, stretchable gas sensor using nanocomposites

A new wearable gas sensor has been developed to detect nitrogen dioxide at low concentrations, with improved sensitivity compared to conventional designs. The sensor combines laser-induced graphene foam material with molybdenum disulfide and reduced-graphene oxide nanocomposites, enabling real-time environmental monitoring applications.

SourcePenn State·JournalMaterials Today Physics·DateAug 27, 2020

When liver cirrhosis is deadly

Researchers have identified three forms of disease progression for acute decompensated liver cirrhosis, including a high-risk variant that leads to severe organ failure and death. The study provides valuable insights into the pathophysiology of ACLF and lays the groundwork for developing preventive therapies.

SourceGoethe University Frankfurt·JournalJournal of Hepatology·DateAug 27, 2020

New analysis shows hydroxychloroquine does not lower mortality in COVID-19 patients, and is associated with increased mortality when combined with the antibiotic azithromycin

A new meta-analysis of published studies on hydroxychloroquine for COVID-19 treatment finds no mortality benefit, while combining it with azithromycin is associated with a 27% increased risk. The study supports current clinical recommendations against using these drugs for COVID-19 patients.

SourceEuropean Society of Clinical Microbiology and Infectious Diseases·JournalClinical Microbiology and Infection·DateAug 26, 2020

New device can measure toxic lead within minutes

Researchers at Rutgers University have developed a lab-on-a-chip device that can measure toxic lead in sediments and water samples within minutes. This affordable technology has the potential to enable municipalities, schools, and homeowners to quickly test their water supplies for contamination.

SourceRutgers University·JournalIEEE Sensors Journal·DateAug 26, 2020

Getting to the root of the problem

A team from Pennsylvania State University analyzed the root systems of various beans and legumes to identify beneficial characteristics for breeding. They found that roots can balance nutrient exploration in topsoil and subsoil, leading to improved crop resilience under stress.

SourceAmerican Society of Agronomy·JournalCrop Science·DateAug 26, 2020

Microscopic robots 'walk' thanks to laser tech

The new microscopic robots are controlled by flashing laser pulses and can walk thanks to a simple circuit made from silicon photovoltaics. The researchers explored ways to enhance the robots with more complicated electronics and onboard computation, potentially leading to swarms of tiny robots crawling through human tissue and blood.

SourceCornell University·JournalNature·DateAug 26, 2020

Lung cancer trial of RET inhibitor selpercatinib achieves durable responses in majority of patients with RET gene fusions

The Phase I/II LIBRETTO-001 trial found that selpercatinib achieved durable objective responses in the majority of participants with RET gene fusions, including an ORR of 85% in previously untreated patients. The study also showed promising results in patients with brain metastases and thyroid cancers.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalNew England Journal of Medicine·DateAug 26, 2020

Genetic causes of severe childhood brain disorders found using new computational methods

A team of researchers at Children's Hospital of Philadelphia used new computational methods to link characteristic presentations of childhood epilepsies with specific genetic variants. They analyzed clinical information and large-scale genomic data, finding associations between 11 genetic causes and specific symptoms.

SourceChildren's Hospital of Philadelphia·JournalAmerican Journal of Human Genetics·DateAug 26, 2020

How plants shut the door on infection

A new study reveals a protein called OSCA1.3 forms a channel that triggers calcium entry into plant cells, triggering the closure of stomata as a defense response to pathogens. This finding is crucial for understanding plant immune mechanisms and could lead to more resilient crops.

SourceUniversity of Maryland·JournalNature·DateAug 26, 2020