Singapore-based scientists have come up with a device that detects coronavirus in the air of indoor spaces, raising the prospect of “airborne surveillance” of the virus to supplement testing of individuals. The air-sampling method means “early warning of infection risks” could be possible in hospital wards and nursing homes, and could boost virus-monitoring capabilities in public places where people gather indoors, such as restaurants and cinemas.
Category: Science & Technology
‘Bored’ pet parrots prone to pining for the jungle – dpa international
The Norwegian Blue may only have been a fictional parrot species made famous by a Monty Python comedy sketch about a dead caged bird “pining for the fjords,” but real live pet parrots do, it seems, get the blues in captivity. That’s according to new research published by the Britain’s Royal Society, which suggests the bigger the captive bird’s brain, the more likely it is to exhibit “forms of abnormal behaviour,” such as chewing the bars of its cage or plucking its own feathers. The extent to which more intelligent parrot species are “prone to disease” and “apparently shortened lifespans” appears equivalent to the “mismatch” between captivity and life in the wild.
US researchers warn against harsh diets, say fat can be fit – dpa international
Overcoming weight-related health problems depends more on hard work and exercise than on cutting calories, according to health researchers in the US.Though excess weight contributes to diabetes and heart disease, crash-dieting not is the answer to a tripling of obesity and surge in related health conditions worldwide since the mid-1970s. When it comes to regaining health and reducing mortality risk associated with excess weight, “increasing physical activity and improving fitness appear to be superior to weight loss,” the researchers said, in findings published by Cell Press.
All in the rhythm – US doctors claim asthma management breakthrough – dpa international
An asthmatic can ditch the cigarettes, steer clear of pollen and dust, take regular pulls on a trusty inhaler, and top all that off with running, cycling, swimming – but in the end, all those good habits might not matter as much as previously assumed. At least not at night, because once the sun sets, according to US doctors and scientists, the body’s natural circadian rhythms “have a stand-alone impact on asthma severity, independent of behavioral and environmental factors.”
Dogs can forecast epileptic seizures, according to Belfast-based scientists – dpa international
DUBLIN – Man’s best friend can not only warn off burglars, herd farm animals or sniff out bombs and drugs, but can be predict epileptic seizures, according to Queen’s University Belfast (QUB). The seizures “are associated with a specific smell which is detectable by pet dogs,” a university-led research team said. Anecdotes about behaviourial changes in dogs suggested they were aware of impending seizures, but no scientific study had until now “investigated the veracity of these claims,” QUB said. Published in the journal MDPI Animals, the findings could help develop a “reliable” and potentially life-saving early warning system” for the world’s 65 million people who live with epilepsy, of which around 30 per cent “cannot control their seizures by medication.”
Mayo Clinic research suggests Trump’s antibody ‘cure’ curbs Covid-19 – dpa international
DUBLIN — A blend of antibody drugs has proven effective among vulnerable patients showing symptoms of Covid-19, according to the Mayo Clinic. Published by The Lancet, a British medical journal, the findings show a combination of casirivimab and imdevimab drugs help ensure “high-risk patients” do not need hospitalisation if hit with “mild to moderate Covid-19.” The clinic gave the drugs, described as “monoclonal antibody treatments under Food and Drug Administration (FDA) emergency use authorization,” to almost 700 patients out of 1,400 enrolled in the study. 1.6 per cent of recipients were in hospital 28 days later along with 4.8 per cent of non-recipients, the medics reported.”Once again, this real-world study suggests that when patients who are at high risk due to a range of co-morbidities contract a mild or moderate case of Covid-19, this combination of monoclonal injections gives them a chance of a non-hospitalized recovery,” said Raymund Razonable, an infectious diseases specialist with the clinic.
Survey shows some medical research undermined by funder demands – dpa international
DUBLIN –Around one-fifth of scientists working on health-related research have faced pressure from funders over “unfavourable” findings, according to survey results published on Wednesday. Eighteen per cent of those questioned said they were “asked to suppress certain findings as they were viewed as being unfavourable,” according to a summary published in science journal PLOS by Australia-based academics, including from the University of Newcastle and Swinburne University of Technology. Some of the scientists and medics who were surveyed said they faced “subtle pressure” from their research paymasters, such as conveying hopes for “positive findings,” or blunter constraints such as government funding agreements that “require researchers to obtain funder approval to publish reports.” The survey covered researchers involved in over 200 trials related to nutrition, physical activity, sexual health, smoking, and substance use. Two-thirds of those polled were based in Europe or North America, with a fifth of them listed as in Oceania.
For big populations, rapid coronavirus tests work better than PCR – dpa international
DUBLIN — Rapid antigen tests for coronavirus likely work better for larger populations than slower but more sensitive polymerase chain reaction (PCR) tests, Indian scientists have found. A “computational analysis” comparing testing regimes and results across India, which was recently hit hard by a virus surge, suggests “the amount of testing matters more than the sensitivity of the tests.” The findings hint that lower- and middle-income countries “might be able to achieve optimal outcomes by concentrating on ramping up testing using less sensitive tests which provide immediate results.”
Coronavirus antibodies last at least 9 months after infection – dpa international
DUBLIN — Coronavirus antibodies last “at least” nine months after infection, according to Imperial College London and the University of Padua. Antibody levels “remain high” whether or not the infected person developed symptoms of Covid-19, the disease sometimes caused by the virus, the researchers found, after testing patients in northern Italy, one of the hardest hit regions at the outset of the pandemic. “The great majority of SARS-CoV-2 (coronavirus) infections, irrespective of symptom onset, develop antibodies,” according to the research, which was published on Monday in the journal Nature Communications.
Humans were sheltered from ancient Toba eruption, according to scientists – dpa international
DUBLIN — It was the world’s biggest volcanic blast for at least the last 2 million years, but when Mount Toba in Indonesia exploded around 74,000 years ago, humans were not as badly affected as previously thought, according to research published by the National Academy of Sciences (NAS) in the US. While the blast “likely caused severe global climate disruption,” early humans “were sheltered from the worst effects,” according to the NAS study. Overall, the scientists said, “the impacts [of the eruption] on climate and human evolution remain unclear.” Other scientists have in the past blamed Toba for causing a decade-long volcanic winter, leading to a millennium of global cooling and then an ice age.