291 articles from TUESDAY 13.7.2021

Rats prefer to help their own kind; humans may be similarly wired

A decade after scientists discovered that lab rats will rescue a fellow rat in distress, but not a rat they consider an outsider, new research pinpoints the brain regions that drive rats to prioritize their nearest and dearest in times of crisis. It also suggests humans may share the same neural bias.

Galactic gamma ray bursts predicted last year show up right on schedule

Astronomers see many periodic emissions from space, typically caused by rotation of stars and often very regular. Astrophysicists noticed a unique periodicity in the soft gamma ray emissions from a magnetar located in our galaxy. The soft gamma repeater SGR1935+2154 appears to emit bursts only within regularly spaced windows, and is inactive in between. Based on their analysis, they predicted a...

NASA Solar Sail Asteroid Mission Readies for Launch on Artemis I

Portal origin URL: NASA Solar Sail Asteroid Mission Readies for Launch on Artemis IPortal origin nid: 472515Published: Tuesday, July 13, 2021 - 16:40Featured (stick to top of list): noPortal text teaser: NASA's Near-Earth Asteroid Scout is tucked away safely inside the agency's powerful Space Launch System (SLS) rocket at NASA's Kennedy Space Center in...

Spectral-volumetric compressed ultrafast photography simultaneously captures 5D data in a single snapshot

Information-rich optical imaging can provide multidimensional information to enable observation and analysis of a detected target, contributing insights into mysterious and unknown worlds. With its ability to capture dynamic scenes on picosecond—and even femtosecond—timescales, ultrafast multidimensional optical imaging has important applications in the detection of the ultrafast phenomena in...

Developing lactose-free milk with graphene oxide based nano filtration membranes

Over the past years, graphene oxide membranes have been mainly studied for water desalination and dye separation. However, membranes have a wide range of applications, such as within the food industry. A research group led by Aaron Morelos-Gomez of Shinshu University's Global Aqua Innovation Center investigated the application of graphene oxide membranes for milk, which typically creates dense...

40-Year Mystery Solved: Source of Jupiter’s X-Ray Flares Uncovered

Portal origin URL: 40-Year Mystery Solved: Source of Jupiter’s X-Ray Flares Uncovered Portal origin nid: 472508Published: Tuesday, July 13, 2021 - 15:03Featured (stick to top of list): noPortal text teaser: A puzzler about the gas giant’s intense northern and southern lights has been deciphered.Portal image: The purple hues in this image show X-ray emissions from...

Air pollution exposure linked to poor academics in childhood

Children exposed to elevated levels of air pollution may be more likely to have poor inhibitory control during late childhood and poor academic skills in early adolescence, including spelling, reading comprehension, and math skills. Difficulty with inhibition in late childhood was found to be a precursor to later air pollution-related academic problems. Interventions that target inhibitory control...

5D imaging of ultrafast phenomena

An international team of researchers recently developed and experimentally demonstrated a spectral-volumetric (SV) CUP system that can simultaneously capture 5D information with a single snapshot measurement.

Preventing lung cancer's unwelcome return

Approximately 15% of lung cancer tumors are caused by a mutation in a growth receptor called EGFR. An effective drug can kill most of the cancer cells, but the tumor eventually grows back. Researchers investigated the molecular mechanisms behind this relapse. They discovered that some of the cells were resistant to the EGFR treatment; they survived using a parallel pathway.

Are silver nanoparticles a silver bullet against microbes?

Antimicrobials are used to kill or slow the growth of bacteria, viruses and other microorganisms. They are essential to preventing and treating infections, but they also pose a global threat to public health when microorganisms develop antimicrobial resistance. A lab studied the mechanisms behind bacterial resistance to silver nanoparticles to determine if their ubiquitous use is a solution to...

COVID-causing coronavirus following predictable mutational footsteps

New research has shown that the mutations arising in the COVID-19-causing SARS-CoV-2 virus seem to run in the family -- or at least the genus of coronaviruses most dangerous to humans. After comparing the early evolution of SARS-CoV-2 against that of its closest relatives, the betacoronaviruses, researchers found that SARS-CoV-2 mutations are occurring in essentially the same locations, both...

Video: Artificial cells

What is life? The most basic and smallest form of life we know is a single cell. Trying to create living cells from scratch is therefore the ultimate goal for Alexander Mason. However, as a cell consists of lots of parts and has many different functions this is a big challenge. In this video lecture Alexander Mason explains how he uses non-living materials like proteins and polymers as...

Farm marketing success linked to natural, cultural assets

Direct farm marketing efforts, such as farmers markets and roadside stands, are more successful in communities with more nonprofits, social enterprises and creative industries, according to a team including Cornell University researchers, who created a nationwide database of assets to help municipalities craft community-specific development plans.