Science

Intestinal worms throw open the door to dangerous viruses

Nature.com - Fri, 02/26/2021 - 00:00

Nature, Published online: 26 February 2021; doi:10.1038/d41586-021-00514-0

With its effect on the gut lining, a parasite aids another infectious agent.

SARS-CoV-2 spike D614G change enhances replication and transmission

Nature.com - Fri, 02/26/2021 - 00:00

Nature, Published online: 26 February 2021; doi:10.1038/s41586-021-03361-1

SARS-CoV-2 spike D614G change enhances replication and transmission

Can COVID spread from frozen wildlife? Scientists probe pandemic origins

Nature.com - Fri, 02/26/2021 - 00:00

Nature, Published online: 26 February 2021; doi:10.1038/d41586-021-00495-0

Studies from China suggest that the coronavirus can be transmitted on frozen surfaces — but scientists say that’s unlikely to be how the pandemic started.

COVID research updates: A COVID vaccine passes a real-world test with flying colours

Nature.com - Fri, 02/26/2021 - 00:00

Nature, Published online: 26 February 2021; doi:10.1038/d41586-020-00502-w

Nature wades through the literature on the coronavirus — and summarizes key papers as they appear.

National Trust to plant blossom trees in cities

BBC Sciences - Environment - Thu, 02/25/2021 - 17:15
The National Trust is planning to plant dozens of blossoming trees to create new green spaces.

Amazon rainforest plots sold via Facebook Marketplace ads

BBC Sciences - Environment - Thu, 02/25/2021 - 17:04
Protected land reserved for Brazil's indigenous communities is being traded on the social network.

Chip simplifies COVID-19 testing, delivers results on a phone

Science Daily News - Thu, 02/25/2021 - 12:38
Programmed magnetic nanobeads paired with an off-the-shelf cellphone and plug-in diagnostic tool can diagnose COVID-19 in 55 minutes or less.
Categories: Science

Comet makes a pit stop near Jupiter's asteroids

Science Daily News - Thu, 02/25/2021 - 12:37
After traveling several billion miles toward the Sun, a wayward young comet-like object orbiting among the giant planets has found a temporary parking place along the way. The object has settled near a family of captured ancient asteroids, called Trojans, that are orbiting the Sun alongside Jupiter. This is the first time a comet-like object has been spotted near the Trojan population.
Categories: Science

Drive-thru type test to detect viral infections in bacteria

Science Daily News - Thu, 02/25/2021 - 12:37
The pandemic has made clear the threat that some viruses pose to people. But viruses can also infect life-sustaining bacteria. A research team has developed a test to determine if bacteria are sick, similar to the one used to test humans for COVID-19.
Categories: Science

Understanding the evolution of SARS and COVID-19 type viruses

Science Daily News - Thu, 02/25/2021 - 12:37
As COVID-19 sweeps the world, related viruses quietly circulate among wild animals. A new study shows how SARS-CoV-2, the virus that causes COVID-19, and SARS-CoV-1, which caused the 2003 SARS outbreak, are related to each other. The work helps scientists better understand the evolution of these viruses, how they acquired the ability to infect humans and which other viruses may be poised for human spillover.
Categories: Science

Abnormal sodium levels in hospitalized patients with COVID-19 predict death or respiratory failure

Science Daily News - Thu, 02/25/2021 - 12:37
Hospitalized patients with COVID-19 and abnormal sodium levels in the blood have an increased risk of experiencing respiratory failure or dying, according to a new study.
Categories: Science

Openly available toolkit to help lab-based coronavirus research

Science Daily News - Thu, 02/25/2021 - 12:36
During the SARS-CoV-2 outbreak, laboratories worldwide have pivoted from their usual research to working to identify new COVID-19 drug and vaccine candidates. This experimental work requires access to clinical isolates and systems that allow genetic manipulation of SARS-CoV-2. A new paper reports an openly available SARS-CoV-2 laboratory research toolkit aimed at increasing availability of these materials.
Categories: Science

Vitamin D deficiency does not increase risk of type 1 diabetes, study finds

Science Daily News - Thu, 02/25/2021 - 12:36
Genetically determined vitamin D levels do not have a large effect on risk of type 1 diabetes in Europeans, according to a new study.
Categories: Science

Two new genes linked to Alzheimer's disease discovered

Science Daily News - Thu, 02/25/2021 - 12:36
A research team has discovered two new genes potentially involved in Alzheimer's disease. They identified them by exploring which genes were turned on and off in the hippocampus of people who suffered from the disease.
Categories: Science

Study estimates two-thirds of COVID-19 hospitalizations due to four conditions

Science Daily News - Thu, 02/25/2021 - 12:36
A new study estimates 64 percent of adult COVID-19 hospitalizations in the U.S. may have been prevented if there were less obesity, hypertension, diabetes, and heart failure. The model suggests notable differences by age and race/ethnicity in COVID-19 hospitalizations related to these conditions.
Categories: Science

AI conquers challenge of 1980s platform games

BBC Sciences - Environment - Thu, 02/25/2021 - 10:00
A computer program that can solve 1980s exploration games could help improve robot intelligence.

Gulf Stream System at its weakest in over a millennium

Science Daily News - Thu, 02/25/2021 - 09:33
Never before in over 1000 years the Atlantic Meridional Overturning Circulation (AMOC), also known as Gulf Stream System, has been as weak as in the last decades. Researchers compiled proxy data, reaching back hundreds of years to reconstruct the AMOC flow history. They found consistent evidence that its slowdown in the 20th century is unprecedented in the past millennium.
Categories: Science

Novel pooled testing strategies can significantly better identify COVID-19 infections

Science Daily News - Thu, 02/25/2021 - 09:33
A novel approach to pooled testing could help identify up to 20 times more COVID-19 infections per day than individual testing. Simple pooled designs could be implemented with minimal changes to current testing infrastructures in clinical and public health laboratories.
Categories: Science

Extreme melt on Antarctica's George VI ice shelf

Science Daily News - Thu, 02/25/2021 - 09:33
Antarctica's northern George VI Ice Shelf experienced record melting during the 2019-2020 summer season compared to 31 previous summers of dramatically lower melt, a new study found. Using satellite observations that detect meltwater on top of the ice and within near-surface snow, the researchers found the most widespread melt of any season. Surface meltwater ponding is potentially dangerous to ice shelves because when these lakes drain, the ice fractures and may trigger ice-shelf break-up.
Categories: Science

Rapidly rising levels of sight loss are 'tip of the iceberg'

Science Daily News - Thu, 02/25/2021 - 09:33
Eye conditions that do not cause vision impairment but have economic and social consequences represent a serious and growing challenge for public health services worldwide.
Categories: Science