- CBC - Technology & Science News
- 21/3/24 22:25
An Alberta housecat — ski goggles strapped to his furry face and zipped into a tiny winter jacket — likes to go for a leisurely ski down mountain slopes while draped around the neck of his...
359 articles from WEDNESDAY 24.3.2021
An Alberta housecat — ski goggles strapped to his furry face and zipped into a tiny winter jacket — likes to go for a leisurely ski down mountain slopes while draped around the neck of his...
Now a new study has found that people with cerebral small vessel disease who have blood-brain barrier leakage had more brain tissue damage over two years than people with less blood-brain barrier leakage.
Pumpkin growers dread the tiny tan scabs that form on their fruit, each lesion a telltale sign of bacterial spot disease. The specks don't just mar the fruit's flesh, they provide entry points for rot-inducing fungus and other pathogens that can destroy pumpkins and other cucurbits from the inside out. Either way, farmers pay the price, with marketable yields reduced by as much as 90%.
When clinical trials were conducted to determine the immunogenicity -- the ability to elicit an immune response -- for the first two vaccines marshaled against SARS-CoV-2the virus that causes COVID-19, one group was not among those included: people who have received solid organ transplants and others (such as those with autoimmune disorders) who are immunocompromised.
In the heart of black cherry's native range, including a part of the Allegheny Hardwoods that bills itself as the "Black Cherry Capital of the World," the tree's regeneration, growth and survival have all been declining for more than a decade. In a new analysis, a team of USDA Forest Service and University of Missouri scientists identify likely factors behind the tree's decline and, more...
The high temperatures and pressures of the Earth's mantle forge carbon-rich minerals known as carbonates into diamond. But less is known about the fate of carbonates that travel even deeper underground—depths from which no sample has ever been recovered.
The number of American bald eagles has quadrupled since 2009, with more than 300,000 birds soaring over the lower 48 states, government scientists said in a report Wednesday.
Asian Americans reported the single biggest increase in serious incidents of online hate and harassment as racist and xenophobic slurs blaming people of Asian descent for the coronavirus pandemic spread over the past year, according to a new survey shared exclusively with U.S. TODAY.
Residents of South Asia already periodically experience heat waves at the current level of warming. But a new study projecting the amount of heat stress residents of the region will experience in the future finds with 2 degrees Celsius of warming, the population's exposure to heat stress will nearly triple.
Scientists make pivotal discovery of method for wireless modulation of neurons with X-rays that could improve the lives of patients with brain disorders. The X-ray source only requires a machine like that found in a dentist's office.
When invaded by a virus, our body cells launch an alert to neighboring cells to increase their antiviral defenses to prevent the infection from spreading. Some viruses, however, manage to bypass this system by mimicking the host's RNA, preventing them from being detected by the infected cell and avoiding this alert. In the case of SARS-CoV-2, this mimicking uses a protein known as nsp14. This...
Archaeologists examined the remains of houses in ancient Maya cities and compared them with other Mesoamerican societies; they found that the societies with the most wealth inequality were also the ones that had governments that concentrated power with a smaller number of people.
Reasons for more than a decade of black cherry regeneration decline in the Allegheny Hardwood Regions are not well-understood; a team of scientists looked at five leading hypotheses; they found that the most likely factors are pathogens and reduced nitrogen availability, and that black cherry may actually be a story of change on a much bigger scale.
Scientists report a novel noninvasive treatment for brain disorders based on breakthroughs in both optics and genetics. It involves stimulation of neurons by means of radioluminescent nanoparticles injected into the brain and exposed to X-rays.
A new study projecting the amount of heat stress residents of the region will experience in the future finds with 2 degrees Celsius of warming, the population's exposure to heat stress will nearly triple.
An international team has produced the first high-resolution 3D image of the sarcomere, the basic contractile unit of skeletal and heart muscle cells, by using electron cryo-tomography. Electron cryo-tomography capability of imaging structures directly in frozen muscle cells could translate into future medical treatments for muscle diseases and a better understanding of the aging process.
For nearly two decades, they've hung out underground, preparing for the day they'll writhe up into our world, make a lot of noise, have sex and die.
Beams of accelerated electrons power electron microscopes, X-ray lasers, medical accelerators and other devices. To optimize the performance of these applications, operators must be able to analyze the quality of the beams and adjust them as needed.
Crowded into a tiny plane, 1,000 feet above the water off Georgia, the surveyors look down in search of a disturbance—a long splash, or a dark patch amid all that blue.
Cochrane review says rapid antigen tests correctly identify only 58% of asymptomatic peopleCoronavirus – latest updatesSee all our coronavirus coverageRapid lateral flow tests for Covid do not work well in people with no symptoms and should not on their own be used to allow people to go to work or school or to travel, experts have said.The UK has bought millions of rapid tests which give results...
This latest installment from our data sonification series features three diverse cosmic scenes. In each, astronomical data collected by NASA's Chandra X-ray Observatory and other telescopes are converted into sounds. Data sonification maps the data from these space-based telescopes into a form that users can hear instead of only see, embodying the data in a new form without changing the original...
Experts discover crucial evidence that could reveal how magnetic fields behave around black holesAn image that captures streaks of polarised light swirling around a supermassive black hole is providing new insight into how galaxies can project streams of energy thousands of light years outward from their core.Black holes are places where the pull of gravity is so strong that even light cannot...
A team of international scientists that includes a Canadian researcher has released a more detailed image of a black hole that they hope will shed more light on one of the most intriguing objects in our...