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247,741 articles from PhysOrg


FRIDAY 23. SEPTEMBER 2022


Simple process extracts valuable magnesium salt from seawater

Since ancient times, humans have extracted salts, like table salt, from the ocean. While table salt is the easiest to obtain, seawater is a rich source of different minerals, and researchers are exploring which ones they can pull from the ocean. One such mineral, magnesium, is abundant in the sea and increasingly useful on the land.

New research finds that viruses may have 'eyes and ears' on us

New UMBC-led research in Frontiers in Microbiology suggests that viruses are using information from their environment to "decide" when to sit tight inside their hosts and when to multiply and burst out, killing the host cell. The work has implications for antiviral drug development.

DNA nets capture COVID-19 virus in low-cost rapid-testing platform

Tiny nets woven from DNA strands can ensnare the spike protein of the virus that causes COVID-19, lighting up the virus for a fast-yet-sensitive diagnostic test—and also impeding the virus from infecting cells, opening a new possible route to antiviral treatment, according to a new study.

An AI message decoder based on bacterial growth patterns

From a box of Cracker Jack to The Da Vinci Code, everybody enjoys deciphering secret messages. But biomedical engineers at Duke University have taken the decoder ring to place it's never been before—the patterns created by bacterial colonies.

Coral genome reveals cysteine surprise

Model animals, such as mice and fruit flies, have provided scientists with powerful insights into how cellular biology works. However, model animals are really just a guide, and it can be risky to generalize findings across animals from studying a selection of model organisms.

First single-crystal organometallic perovskite optical fibers

Due to their very high efficiency in transporting electric charges from light, perovskites are known as the next generation material for solar panels and LED displays. A team led by Dr. Lei Su at Queen Mary University of London now have invented a brand-new application of perovskites as optical fibers. The results are published in Science Advances.

Neoliberals are most receptive to political tricks, study finds

Do we fall for political tricks—when politicians tell us things that seem completely meaningless? Social psychologists of the University of Amsterdam tested how people respond to vague and meaningless statements like "To politically lead the people means to always fight for them" and "For better and stronger Gonfel!" (a fictitious country). They find that right-wing people, and especially...

Project counts down Ariel exoplanet targets

Details of the orbits of 450 candidate exoplanet targets of the European Space Agency's Ariel space mission have been presented this week at the Europlanet Science Congress (EPSC) 2022, and submitted for publication in the Astrophysical Journal Supplement Series. The study, coordinated by the ExoClock project, has been co-authored by 217 professional and amateur astronomers, as well as university...

Mutation in key molecules could stop gonorrhea infection

Creating a mutation that inhibits how the bacterial pathogen Neisseria gonorrhoeae causes gonorrhea, a common sexually transmitted infection, could offer a new way to prevent and treat the disease, according to researchers in the Institute for Biomedical Sciences at Georgia State University.

Tracking the origin of southern California's latest invasive pest

In 2012, a crop of California's most prized ornamental trees was overrun by an invisible invader. The growing shoots of coral beans—the official city tree of Los Angeles—began wilting and falling away, revealing stems that had been hollowed out from the inside by the caterpillars of Erythrina stem borer moths.

The carp virus that taught researchers about immunology

One of the fascinating aspects of scientific research is certainly the serendipity that comes with it, which is something the team of Prof. Alain Vanderplasschen, virologist and immunologist at the FARAH (Faculty of Veterinary Medicine) of the University of Liège can only agree with. His team has just published in Nucleic Acids Research the results of ten years of research on the study of an...

Scientists use modified silk proteins to create new nonstick surfaces

Researchers at Tufts University have developed a method to make silk-based materials that refuse to stick to water, or almost anything else containing water for that matter. In fact, the modified silk, which can be molded into forms like plastic, or coated onto surfaces as a film, has non-stick properties that surpass those of nonstick surfaces typically used on cookware, and it could see...

Higher temperatures make it difficult for fig tree pollinators

Researchers from Uppsala University and elsewhere have been studying the effect of rising temperatures on the lifespan of pollinating fig wasps. The findings show that the wasps lived much shorter lives at high temperatures, which would make it difficult for them to travel the long distances between the trees they pollinate.

Developing conductive and electrocatalytic mediators in Li-S batteries

Lithium sulfide (Li-S) batteries are considered a promising and efficient energy storage system because of their high energy density (2600 Wh kg-1) and low sulfur material cost. However, numerous obstacles to the practical implementation of Li–S batteries remain, including low sulfur conductivity, the shuttle effect, and the requirement for an adequate volume change (80%) of sulfur during...

A quadruple increase in carbon dioxide over East Asia causes changes in both fast and slow cloud responses

Extreme climate warming has been shown to change how cloud cover behaves throughout East Asia (EA). Recent research suggests that in a warmer climate with greater amounts of CO2 in the atmosphere, slow cloud responses to meteorological mechanisms can cause a cooling effect over certain regions of EA. However, in some areas within Asia, fast cloud responses may have the opposite effect. This new...

When monkeys use the forest as a pharmacy

Have you ever seen your cat or dog eating grass? They do so because it can help their digestion, and many wild species use natural substances to prevent and control diseases or to repel parasites. This is called "zoopharmacognosy" or, more commonly, animal self-medication.

The expansion of capitalism led to a deterioration in human welfare, according to new study

Far from reducing extreme poverty, the expansion of capitalism from the 16th century onward was associated with a dramatic deterioration in human welfare. This is according to a study carried out by the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB) in collaboration with Macquarie University, Australia, which shows that this new economic...

To reach net zero the world still needs mining. After 26 years, here's what I've learned about this 'evil' industry

On the wooded hill above the Stan Terg lead and zinc mine in Kosovo, there is an old concrete diving platform looming over what was once an open-air swimming pool. Before the break-up of Yugoslavia, people who worked at the mine would bring their families here to swim, sunbathe on the wide terrace with its view across the valley, and picnic among the trees. Now the pool is slowly disappearing into...