- CBC - Technology & Science News
- 20/6/11 21:23
In this week's issue of our environment newsletter, we look at the concept of 'regenerative ocean farming' and a Siberian oil spill with larger ramifications for the world.
360 articles from THURSDAY 11.6.2020
In this week's issue of our environment newsletter, we look at the concept of 'regenerative ocean farming' and a Siberian oil spill with larger ramifications for the world.
Watershed researchers estimate more than 1000 tons of microplastics (equal to more than 123 million plastic water bottles) are deposited in national parks and wilderness areas each year. Researchers used high-resolution atmospheric deposition data and identified samples of microplastics and other particulates collected over 14 months in 11 western U.S. national parks and wilderness areas. They...
A group of Japanese scientists has developed an ultrastable, selective catalyst to dehydrogenate propane - an essential process to produce the key petrochemical substance of propylene - without deactivation, even at temperatures of more than 600°C.
A research collaboration has demonstrated the function of a genetic pathway for anther development, with this pathway proven in 2019 work to be present widely in the flowering plants that evolved over 200 million years ago.
Using induced pluripotent stem cells (iPSCs) and deleting a key gene, researchers have created natural killer cells -- a type of immune cell -- with measurably stronger activity against a form of leukemia, both in vivo and in vitro.
When Dr. Anthony Fauci said in late May that there’s a “good chance” a COVID-19 vaccine will be ready by the end of this year, Steve Roth badly wanted to believe him. Roth, a 74-year-old New Yorker who endured fever, pneumonia and anxiety while fighting the virus, wants life to go back to normal as much as anyone. And he respects Fauci, the longtime head of the National...
A new study has produced the first analysis of seismic echoes from hundreds of earthquakes at once, revealing widespread structures at the core-mantle boundary. Previous studies were limited to analysis of single earthquakes, providing only a narrow window into the structure deep inside the Earth. This study enables a much wider view than ever before, revealing new, unexpected features and...
Researchers have developed the most precise way to build polyrotaxanes by using two artificial molecular pumps to install rings onto each end of a polymer string.
Striking images of some five billion brain cell connections have been created by scientists, mapping a lifetime's changes across the brain in minute detail.
A new study shows that patient-derived adult stem cells can be used to model major depressive disorder and test how a patient may respond to medication and that fish oil, when tested in the model, created an antidepressant response.
Two new studies show what can be learned from a short seismic checkup of natural rock arches and how erosion sculpts some arches -- like the iconic Delicate Arch -- into shapes that lend added strength.
UK death toll rises by 151 to 41,279; urgent cancer referrals in England fell by 60% in first month of lockdownNHS unable to trace contacts of 33% of people with coronavirusWho does coronavirus kill in England and Wales?How successful is test and trace? - AnalysisCoronavirus – latest updates 7.15pm BST That’s it from us today on the UK side. If you would like to continue to follow the...
In a new mathematical model that bridges animal movement and disease spread, territorial behaviors decreased the severity of potential disease outbreaks—but at the cost of increased disease persistence. Lauren White of the University of Maryland's National Socio-Environmental Synthesis Center, Annapolis, MD, and colleagues present these findings in PLOS Computational Biology.
Miniaturization has enabled technology like smartphones, health watches, medical probes and nano-satellites, all unthinkable a couple decades ago. Just imagine that in the course of 60 years, the transistor has shrunk from the size of your palm to 14 nanometers in dimension, 1000 times smaller than the diameter of a hair.
Northwestern University researchers have developed the most precise way to build polyrotaxanes, a mechanically locked polymer for slide-ring gels, battery electrode materials and drug-delivery platforms.
University of Maryland geophysicists analyzed thousands of recordings of seismic waves, sound waves traveling through the Earth, to identify echoes from the boundary between Earth's molten core and the solid mantle layer above it. The echoes revealed more widespread, heterogenous structures—areas of unusually dense, hot rock—at the core-mantle boundary than previously known.
Since their reintroduction to the Pacific coast in the 1970s, the sea otters' rapid recovery and voracious appetite for tasty shellfish such as urchins, clams and crabs has brought them into conflict with coastal communities and fishers, who rely on the same valuable fisheries for food and income.
Utah State University Assistant Professor Janice Brahney and her team used high-resolution atmospheric deposition data and identified samples of microplastics and other particulates collected over 14 months in 11 national parks and wilderness areas. The researchers identified plastic and polymers' composition to identify sources of plastic emitted into the atmosphere and track its movement and...
Sexual dichromatism, a difference in coloration between males and females, may be due to sexual selection for ornamentation and mate choice. Here, we show that carotenoid-based dichromatism in mosaic canaries, a hybrid phenotype that arises in offspring of the sexually dichromatic red siskin and monochromatic canaries, is controlled by the gene that encodes the carotenoid-cleaving enzyme...
Neutralizing antibodies could potentially be used as antivirals against the coronavirus disease 2019 (COVID-19) pandemic. Here, we report isolation of four human-origin monoclonal antibodies from a convalescent patient, all of which display neutralization abilities. The antibodies B38 and H4 block binding between the spike glycoprotein receptor binding domain (RBD) of the virus and the cellular...
Mechanically interlocked molecules are likely candidates for the design and synthesis of artificial molecular machines. Although polyrotaxanes have already found niche applications in exotic materials with specialized mechanical properties, efficient synthetic protocols to produce them with precise numbers of rings encircling their polymer dumbbells are still lacking. We report the assembly...