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Engineers combine light and sound to see underwater

Engineers have developed an airborne method for imaging underwater objects by combining light and sound to break through the seemingly impassable barrier at the interface of air and water.

Researchers explore population size, density in rise of centralized power in antiquity

A group of researchers developed Power Theory, a model emphasizing the role of demography in political centralization, and applied it to the shift in power dynamics in prehistoric northern coastal societies in Peru. To test the theory, the team created a summ

Microfluidic system with cell-separating powers may unravel how novel pathogens attack

To develop effective therapeutics against pathogens, scientists need to first uncover how they attack host cells. An efficient way to conduct these investigations on an extensive scale is through high-speed screening tests called assays.

The 'smell' of coral as an indicator of reef health

A study conducted in the southern Great Barrier Reef reveals the chemical diversity of emissions from healthy corals. The researchers found that across the reef-building coral species studied on Heron Island, the abundance and chemical diversity of their gas

Study shows strong links between music and math, reading achievement

A music educator thought that if he could just control his study for the myriad factors that might have influenced previous ones - race, income, education, etc. -- he could disprove the notion of a link between students' musical and mathematical achievement.

An escape route for seafloor methane

A study has solved the mystery of how and why columns of methane, a potent greenhouse gas, can stream out of solid sea-floor formations known as methane hydrates.

Recycled concrete could be a sustainable way to keep rubble out of landfill

Results of a new five-year study of recycled concrete show that it performs as well, and in several cases even better, than conventional concrete. Researchers conducted side-by-side comparisons of recycled and conventional concrete within two common applicati

Esports: Fit gamers challenge ‘fat’ stereotype

A new survey of 1400 participants from 65 countries has found esports players are up to 21 per cent healthier weight than the general population, hardly smoke and also drink less.

Report assesses promises and pitfalls of private investment in conservation

Scientists, lawyers, investors and economists explore how privately financed conservation projects can generate both financial returns and positive conservation outcomes.

The wily octopus: King of flexibility

Octopuses have the most flexible appendages known in nature, according to a new study. In addition to being soft and strong, each of the animal's eight arms can bend, twist, elongate and shorten in many combinations to produce diverse movements. Researchers f

Plastic contaminants harm sea urchins

Plastics in the ocean can release chemicals that cause deformities in sea urchin larvae, new research shows.

Separating gases using flexible molecular sieves

Researchers have made reported some exciting findings relating to metal-organic frameworks (MOFs), a class of porous materials, which could benefit a wide range of important gas separation processes.

Future Brahmaputra River flooding as climate changes may be underestimated, study says

A new study looking at seven centuries of water flow in south Asia's mighty Brahmaputra River suggests that scientists are underestimating the river's potential for catastrophic flooding as climate warms.

Experiments unravelling the mystery of Mars' moon Phobos

There is no weather in space - but there is weathering: Celestial bodies are bombarded by high energy particles. On the Mars moon Phobos, the situation is complicated: It is hit by particles from the sun, but it is partly shielded by Mars. New experiments exp

Wuhan mass screening identifies hundreds of asymptomatic cases

A mass screening program of 10 million Wuhan residents identified 300 asymptomatic cases in May, but none were infectious, according to a new study. Researchers found no 'viable' virus in the asymptomatic cases and the close contacts of these positive asympto

How SARS-CoV-2 reaches the brain

Researchers have studied the mechanisms by which the novel coronavirus can reach the brains of patients with COVID-19. The results show that SARS-CoV-2 enters the brain via nerve cells in the olfactory mucosa.

How 'smell training' could help overcome post-viral smell distortions

Smell loss is a prominent symptom of Covid-19 and the pandemic is leaving many people with long-term smell loss or smell distortions such as parosmia. Parosmia happens when people experience strange and often unpleasant smell distortions. Instead of smelling

Caribbean coral reefs under siege from aggressive algae

Human activity endangers coral health around the world. A new algal threat is taking advantage of coral's already precarious situation in the Caribbean and making it even harder for reef ecosystems to grow. Just-published research details how an aggressive, g

Discoveries highlight new possibilities for magnesium batteries

Researchers have reported a breakthrough in the development of magnesium batteries, allowing them to operate at room temperature and deliver a power density comparable to that of lithium-ion batteries.

Older adults with dementia exhibit financial 'symptoms' up to six years before diagnosis

A new study found that Medicare beneficiaries who go on to be diagnosed with dementia are more likely to miss payments on bills as early as six years before a clinical diagnosis.

Seismic guidelines underestimate impact of 'The Big One' on metro Vancouver buildings

Scientists examining the effects of a megathrust earthquake in the Pacific Northwest say tall buildings across Metro Vancouver will experience greater shaking than currently accounted for by Canada's national seismic hazard model.

Chemical compounds in foods can inhibit a key SARS-CoV-2 enzyme, study finds

Chemical compounds in foods or beverages like green tea, muscadine grapes and dark chocolate can bind to and block the function of a particular enzyme, or protease, in the SARS-CoV-2 virus, according to a new study by plant biologists.

Connection between gut bacteria and vitamin D levels

Researchers discovered that the makeup of a person's gut microbiome is linked to their levels of active vitamin D, and revealed a new understanding of vitamin D and how it's typically measured.

Area burned by severe fire increased 8-fold in western US over past four decades

The number of wildfires and the amount of land they consume in the western US has substantially increased since the 1980s, a trend often attributed to ongoing climate change. Now, new research finds fires are not only becoming more common in the western US bu

HIV-like virus edited out of primate genome

Taking a major step forward in HIV research, scientists have successfully edited SIV - a virus closely related to HIV, the cause of AIDS - from the genomes of non-human primates.

Emissions growth slower than worst-case projections

New research reveals that emissions are not growing as fast as the UN's Intergovernmental Panel on Climate Change's assessments have indicated -- and that the IPCC is not using the most up-to-date climate scenarios in its planning and policy recommendations.

Computer-aided creativity in robot design

RoboGrammar is a new system that automates and optimizes robot design. The system creates arthropod-inspired robots for traversing a variety of terrains. It could spawn more inventive robot forms with enhanced functionality.

Cortex over reflex: Study traces circuits where executive control overcomes instinct

Via circuit tracing and behavioral manipulation using optogenetics, a new study shows that a region of the prefrontal cortex connects to the superior colliculus to override the SC's reflexive action when executive control is necessary.

Why spending a long time on your phone isn't bad for mental health

General smartphone usage is a poor predictor of anxiety, depression or stress say researchers, who advise caution when it comes to digital detoxes. Researchers measured the time spent on smartphones by 199 iPhone users and 46 Android users for one week. Surpr

Raman holography

Scientists report on a novel Raman holographic technique capable of tracking individual particles in 3D volumes from one single image.

Holographic fluorescence imaging

A new study reports on a novel fluorescence holographic technique for the fast tracking of the 3D motion in cells.

How lockdown may lead to 'avoidable harm' for the health of under 16s

Decreases in hospital attendances and admissions amid fears of COVID-19 may result in avoidable harm for under 16s, say researchers. Following lockdown, they found 'a striking decrease' in the number of children and young people attending the Paediatric Emerg

Researchers develop new biomaterial that helps bones heal faster

Scientists have developed a new biomaterial that helps bones heal faster by enhancing adults' stem cell regenerative ability.

It's not too late to save 102 species at risk of extinction

The Fraser River estuary in British Columbia is home to 102 species at risk of extinction. A new study says it's not too late to save these species if action is taken now.

Insulators in Alberta at higher risk of chest infections, COPD

Construction workers in Alberta, Canada who work with hazardous insulation materials are much more likely to be affected by repeated chest infections and chronic obstructive pulmonary disease (COPD), according to new research.

Rapid-forming giants could disrupt spiral protoplanetary discs

Giant planets that developed early in a star system's life could solve a mystery of why spiral structures are not observed in young protoplanetary discs, according to a new study.

Killer electrons in strumming northern and southern lights

Wisps of pulsating aurora lights are a rare, yet magical sight. Now, scientists suggest they could be associated with destruction of part of the ozone.

Earth faster, closer to black hole, in new map of galaxy

Earth 'just got' 7 km/s faster and about 2000 light-years closer to the supermassive black hole in the center of the Milky Way Galaxy. But don't worry, this doesn't mean that our planet is critical. Instead the changes are results of a better model of the Mil

Jaguars robust to climate extremes but lack of food threatens species

Researchers lead a world-first investigation into the chances of wild jaguars surviving climate extremes with six scenarios modelling the behavior, mating, births of cubs, competition, illegal hunting, death from starvation and availability of prey.
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