Новости за 19.08.2021

Netflix will soon premiere a documentary series chronicling Inspiration4, the world's first all-civilian space mission, the streaming service said Thursday.

In order to function properly, the brain requires a steady flow of blood through the cerebral arteries and veins, which deliver oxygen and nutrients and also remove metabolic byproducts. Therefore, cerebral blood flow is considered a vital and sensitive marker of cerebrovascular function. Optical methods offer a noninvasive approach for measuring cerebral blood flow. Diffuse correlation spectroscopy (DCS), a method gaining popularity, involves the illumination of tissues with near-infrared laser rays. Читать дальше...

The future connection between human waste, sanitation technology and sustainable agriculture is becoming more evident. According to research directed by University of Illinois Urbana-Champaign civil and environmental engineering professor Jeremy Guest, countries could be moving closer to using human waste as fertilizer, closing the loop to more circular, sustainable economies.

A new study shows that disappearing sea ice is a significant element of the food web supporting female walruses and their dependent young in the Arctic's Chukchi Sea. Researchers were able to trace biomarkers that are unique to algae growing within sea ice to connect marine mammals with a food source that is rapidly diminishing in the face of climate change.

There is good and bad news about ginseng collection and production in Pennsylvania, and likely much of Appalachia, according to a new study conducted by Penn State researchers.

Ocean currents, propelled by kinetic energy from the wind, are the great moderators of our climate. By transferring heat from the equator to polar regions, they help make our planet habitable.

Nearly 60 percent of people experiencing both homelessness and serious mental illness in Metro Vancouver have had a criminal conviction, according to a new study from Simon Fraser University.

The presence of mercury in the world's oceans has ramifications for human health and wildlife, especially in coastal areas where the majority of fishing takes place. But while models evaluating sources of mercury in the oceans have focused on mercury deposited directly from the atmosphere, a new study led by Peter Raymond, professor of ecosystem ecology at the Yale School of the Environment and published in Nature Geoscience shows that rivers are actually the main source of the toxic heavy metal along the world's coasts.

Worldwide, the cost of bird collisions with planes has been estimated at $1.2 billion per year. But information on bird movements throughout the year can help avoid damage to aircraft and risk to passengers. Scientists from the Cornell Lab of Ornithology and partners have been looking for patterns in bird strike data from three New York City area airports. Their findings were published today in the Journal of Applied Ecology.

The burgeoning field of macrogenetics is the focus of a new review published in Nature Reviews Genetics by a global, multidisciplinary team of researchers seeking to better answer fundamental biodiversity questions.

A new study led by the University of Colorado Boulder reveals the complex history behind one of the Grand Canyon's most well-known geologic features: A mysterious and missing gap of time in the canyon's rock record that covers hundreds of millions of years.

One of the most valuable forms of forensic evidence in cases of male-perpetrated sexual assault is the presence of semen, either in the form of stains left behind on items or on swabs collected from victims after an offense. To confirm that semen is present, suspected stains are examined under a microscope to see if any sperm cells are visible.

Deep in the dense coastal forests and marshes of the American Southeast lie shell rings and shell mounds left by Indigenous people 3,000 to 5,000 years ago. Now an international team of researchers, using deep machine learning to assess remote sensing data, has located previously undiscovered shell rings. The researchers hope this will lead to a better understanding of how people lived in that area and a way to identify other, undiscovered shell rings.

It's suspected that about 5,000 years ago a comet may swept within 23 million miles of the Sun, closer than the innermost planet Mercury. The comet might have been a spectacular sight to civilizations across Eurasia and North Africa at the end of the Stone Age.

"Dada," "mama," "baba"—everyone who has infants is familiar with this vocal behavior called babbling, a milestone in human infant speech development. Successful language acquisition requires the ability to produce canonical syllables such as /da/ba/ga/ and infants practice them during babbling. A new study published by researchers from the Museum für Naturkunde Berlin in Science shows for the first time that the babbling behavior of bat pups is characterized by similar key features as human infant babbling.

All animals and plants and other multicellular organisms are covered inside and out with a diverse "microbiome", communities of microorganisms. Most research has focused on microbiomes on land, but what about the microbes that live in and on the organisms that inhabit our vast oceans?

Zebrafish—small, fast-growing creatures who share many of the same genes as humans—are instrumental to many biologists, who find them uniquely well suited for studying a wide range of questions, from how organisms develop to how the nervous system drives behavior. Now, with a new technology developed by University of Utah Health scientists called MIC-Drop, the fish will be even more powerful for large-scale genetic studies.

Tens of thousands of hydraulic fracturing wells drilled over the past few years from Pennsylvania to Texas to North Dakota have made unconventional oil and gas production part of everyday life for many Americans. This raises questions about the impacts to local communities and human health. While some studies document that hydraulic fracturing can contaminate groundwater, new evidence shows the practice can also reduce surface water quality.

Hurricane Grace grounded flights and forced tourists to spend the night in shelters on Mexico's Caribbean coastline before weakening to a tropical storm on Thursday as it moved inland.

Scientists around the world are developing new hardware for quantum computers, a new type of device that could accelerate drug design, financial modeling, and weather prediction. These computers rely on qubits, bits of matter that can represent some combination of 1 and 0 simultaneously. The problem is that qubits are fickle, degrading into regular bits when interactions with surrounding matter interfere. But new research at MIT suggests a way to protect their states, using a phenomenon called many-body localization (MBL).

The formation of hybrids—organisms obtained after crossing genetically different forms—is more widespread in nature previously thought. Usually, only closely related species can hybridize. For example, hybrids occur in some populations of Daphnia – crustaceans from plankton. They significantly complicate the definition of the boundaries between different species. However, some cases are known when hybridisation occurred between very distant relatives: for example, between Homo sapiens and Neanderthals... Читать дальше...

A detailed study of the weapons bacteria use to defeat their rivals has revealed a brand new target for antibiotics.

A study led by researchers at North Carolina State University developed a new method that enables quantum computers to measure the thermodynamic properties of systems by calculating the zeros of the partition function.

Pet ownership doesn't have to be so tough on the planet, according to new UBC research.

Scientists have taken the clearest picture yet of electronic particles that make up a mysterious magnetic state called quantum spin liquid (QSL).