318 articles from THURSDAY 18.6.2020
NASA’s new head of human spaceflight says SpaceX’s Dragon is in good shape
NASA's newly named associate administrator for human exploration and operations, Kathy Lueders, says that SpaceX's Crew Dragon capsule "has been doing great" at the International Space Station — and that the NASA astronauts who rode it to orbit are likely to come back down to Earth in early August. Lueders was selected to become NASA's head of human spaceflight last week,...
Pollutionwatch: air quality benefits of lockdown continue
There was an average decrease of 31% in nitrogen dioxide levels on London’s roads The start of the UK lockdown brought news of reduced air pollution. Did it last?Measurements from London show that initial improvements in nitrogen dioxide from traffic continued into April and May. Compared with the first 11 weeks of 2020 before lockdown, there was an average decrease of 31% on the capital’s...
One press release on OSHA violations yields compliance equal to 210 inspections
A single press release naming a company that has violated workplace health and safety regulations can result in a 73 percent improvement in compliance by other facilities, a Duke researcher finds.
Popular doesn't mean influential among Cambodian farmers
It's become common practice for NGOs and environmental development agencies to use 'influencers' for the roll out of environmentally sustainable farming practices, but this isn't always the most effective method, say social network analysts from the University of Sydney.
Planets must be formed early, study finds
Scientists have found evidence that planets form in a blink of an eye on a cosmic scale. New results, obtained using the combined power of Atacama Large Millimeter/submillimeter Array (ALMA) and Very Large Array (VLA), show that very young disks, with ages of between 0.1—0.5 million years, have more than enough pieces to assemble planetary systems.
'Nanotorch' highlights ultrafast biochemical reactions
Life depends on remarkable arrays of biochemical reactions. Understanding the workings of biomolecules involves real-time monitoring of these reactions. Happening in only tiny fractions of a millisecond, this is very difficult even with highly sensitive optical instruments. Therefore, Ph.D. researcher Yuyang Wang uses a 'plasmonic nanotorch," a single metal nanoparticle that illuminates single...
Artificial intelligence could revolutionize sea ice warnings
Today, large resources are used to provide vessels in the polar seas with warnings about the spread of sea ice. Artificial intelligence may make these warnings cheaper, faster, and available for everyone.
Scientists working to make molecule-sized robots swarm together to perform tasks
Multi-disciplinary research has led to the innovative fabrication of molecule-sized robots. Scientists are now advancing their efforts to make these robots interact and work together in the millions, explains a review in the journal Science and Technology of Advanced Materials.
Researchers make new discovery on the molecular structure of natural products
Researchers from the Institute of Molecular Science (ICMol) of the University of Valencia have managed to synthesize a new porous material that makes it possible to encapsulate a series of active principles of natural substances and determine their chemical structure by using X-ray diffraction. This will allow for the future characterisation of natural products, hitherto unknown, and to reveal...
Facebook takes down Trump campaign ads featuring symbols once used by Nazis
Facebook has removed a campaign ad by U.S. President Donald Trump and Vice-President Mike Pence that featured an upside down red triangle, a symbol once used by Nazis to designate political prisoners, communists and others in concentration...
Researchers discover unique material design for brain-like computations
Over the past few decades, computers have seen dramatic progress in processing power; however, even the most advanced computers are relatively rudimentary in comparison with the complexities and capabilities of the human brain.
Scientists unlock secrets of Ethiopia's superfood in race to save it from warming climate
Teff, an ancient grain originally from Ethiopia, is a staple crop for 50 million people in the country. It is also increasingly popular worldwide, touted as a superfood for its gluten-free, high fiber and protein, and low-sugar properties.
Ministers show how world beating they are all over again | John Crace
From Hancock being forced to bin the test and trace app to Raab’s BLM gaffe, who can rival the cabinet for incompetence?For months now the government has been prefacing all its coronavirus briefings as world-beating when the only thing in which we appeared to be global leaders was our mortality rates. But now I’m beginning to think Boris Johnson and his cabinet may have been on to something...
Hubble provides holistic view of stars gone haywire
- ScienceDaily
- 20/6/18 21:03
As nuclear fusion engines, most stars live placid lives for hundreds of millions to billions of years. But near the end of their lives they can turn into crazy whirligigs, puffing off shells and jets of hot gas. Hubble has dissected such crazy fireworks in two nearby young planetary nebulas.
Uncovering the genetic basis of hermaphroditism in grapes, the trait that allowed domestication
- ScienceDaily
- 20/6/18 21:03
Plant experts at UC Davis have defined the genetic basis of sex determination in grapevines, one of the oldest and most valuable crops worldwide. In new research biologists propose a novel model of sex evolution before and during grapevine domestication nearly 8,000 years ago. Their work could have broad application in breeding grapes and other plant species.
Sedentary behavior independently predicts cancer mortality
- ScienceDaily
- 20/6/18 21:03
In the first study to look at objective measures of sedentary behavior and cancer mortality, researchers found that greater inactivity was independently associated with a higher risk of dying from cancer.
US cities with pro sports see more flu deaths
- ScienceDaily
- 20/6/18 21:03
Sports leagues may want to consider calling a timeout on reopening their doors to fans, based on new research that links an uptick in seasonal flu deaths to US cities with pro sports teams.
How cancer drugs find their targets could lead to a new toolset for drug development
- ScienceDaily
- 20/6/18 21:03
Cellular processes such as transcription often take place in tiny cellular droplets called condensates. A new study shows the mechanism by which small molecules, including cancer drugs, are concentrated in these droplets -- a finding that could have implications for the development of new cancer therapeutics. If researchers could tailor a chemical to seek out and concentrate in one kind of droplet...
Studying the Neanderthal DNA found in modern humans using stem cells and organoids
- ScienceDaily
- 20/6/18 21:03
Protocols that allow the transformation of human induced pluripotent stem cell (iPSC) lines into organoids have changed the way scientists can study developmental processes and enable them to decipher the interplay between genes and tissue formation, particularly for organs where primary tissue is not available. Now, investigators are taking this technology and applying it to study the...
Scientists decode how the brain senses smell
- ScienceDaily
- 20/6/18 21:03
Scientists have further decoded how mammalian brains perceive odors and distinguish one smell from thousands of others.