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30 articles from ScienceDaily

In Earth's largest extinction, land animal die-offs began long before marine extinction

Because of poor dates for land fossils laid down before and after the mass extinction at the end of the Permian, paleontologists assumed that the terrestrial extinctions from Gondwana occurred at the same time as the better-documented marine extinctions. But a new study provides more precise dates for South African fossils and points to a long, perhaps 400,000-year period of extinction on land...

Bubbles go with the flow

Scientists have developed a new computer simulation model that includes microbubble nucleation to explain the flow slippage of fluids inside pipes. This work may help improve the flow rate of viscous fluids in commercial applications, as in the energy industry.

Copper boosts pig growth, and now we know why

Pigs have better feed conversion rates with copper in their diets, but until now, scientists didn't fully understand why. Existing research from the University of Illinois shows copper doesn't change fat and energy absorption from the diet. Instead, according to new research, the element seems to enhance pigs' ability to utilize fat after absorption, resulting in increased energy utilization of...

Faster way to replace bad info in networks

Researchers have demonstrated a new model of how competing pieces of information spread in online social networks and the Internet of Things (IoT). The findings could be used to disseminate accurate information more quickly, displacing false information about anything from computer security to public health.

ALMA resolves gas impacted by young jets from supermassive black hole

Astronomers obtained the first resolved image of disturbed gaseous clouds in a galaxy 11 billion light-years away by using the Atacama Large Millimeter/submillimeter Array (ALMA). The team found that the disruption is caused by young powerful jets ejected from a supermassive black hole residing at the center of the host galaxy. This result will cast light on the mystery of the evolutionary process...

How to boost immune response to vaccines in older people

Identifying interventions that improve vaccine efficacy in older persons is vital to deliver healthy aging for an aging population. Immunologists have identified a route for counteracting the age-related loss of two key immune cell types by using genital wart cream to boost immune response to vaccination in aged mice. After this validation in mice, the findings offer an attractive intervention to...

A new battery chemistry promises safer high-voltage lithium-ion batteries

For the first time, researchers who explore the physical and chemical properties of electrical energy storage have found a new way to improve lithium-ion batteries. They successfully increased not only the voltage delivery of a lithium-ion battery but also its ability to suppress dangerous conditions that affect the current range of batteries. This improved lithium-ion battery could make longer...

Forgotten tale of phage therapy history revealed

In the current situation when the fear of virus infections in the public is common, it is good to remember that some viruses can be extremely beneficial for humankind, even save lives. Such viruses, phages, infect bacteria. Recent research shed some light on the phage therapy history. It revealed that Brazil was a strong user and developer of phage therapy in 1920-40's.

Biophysics: Lifting the lid on beta-barrels

The interaction between biotin and streptavidin is a well-established experimental tool in bionanotechnology. Physicists have now shown that the mechanical stability of the complex is dependent on the precise geometry of the interface.

COVID-19 infection prevention and control in long-term care facilities

Scientists have recently released guidance for prevention and management of COVID-19 among elderly in long term care facilities. The article outlines the objective of WHO interim guidance on Infection Prevention and Control (IPC) in Long-Term Care Facilities (LTCF) in the context of COVID-19 which is to prevent COVID-19-virus from entering the facility, spreading within the facility, and spreading...