Новости за 21.03.2022

Water from Ethiopia's Omo River, which flows for 472 miles along the country's southwest side, has helped sustain the livelihood of tribal populations for hundreds of years. Human rights organizations have estimated 200,000 people from various tribes in the region rely on the Omo's water for cattle and to grow crops like sorghum and maize.

In a collaboration between RIPE researchers and cowpea breeders from Ahmadu Bello University and the International Institute of Tropical Agriculture, the width of cowpea leaves was found to correlate with above-ground biomass across diverse germplasm and environmental conditions. This easy-to-measure trait can be readily used for selection in breeding programs for cowpea biomass in Nigerian fields.

Suppose that we could watch twenty generations of whales or sharks adapting to climate change—measuring how they evolve and how their biology changes as temperatures and carbon dioxide levels rise. That could tell us a lot about how resilient life in the oceans might be to a warmer world. But it would also take hundreds of years—not very useful to scientists or policymakers trying to understand our warming world today.

Astronomy's newest mystery objects⁠—odd radio circles, or ORCs⁠—have been pulled into sharp focus by an international team of astronomers using the world's most capable radio telescopes.

Whether it's photovoltaics or fusion, sooner or later, human civilization must turn to renewable energies. This is deemed inevitable, considering the ever-growing energy demands of humanity and the finite nature of fossil fuels. Much research has been pursued in order to develop alternative sources of energy, most of which use electricity as the main energy carrier. The extensive R&D in renewables has been accompanied by gradual societal changes as the world adopted new products and devices running on renewables. Читать дальше...

As coyotes have spread outside their native range into the eastern United States, they've been known to harass and kill North Carolina's two native species of fox. A new study finds that preserving tree cover may be essential in helping the gray fox survive with coyotes in rural areas, probably because of the fox's unusual ability to climb trees.

Rooftop gardens and greenery can help ease some of the severe heat in cities, according to research from climate scientists at NASA's Goddard Institute for Space Studies (GISS) in New York. For several decades, researchers have promoted replacing black tar and other dark-colored roofing materials with bright, sun-reflecting surfaces or "green roofs" full of plant cover. Now they have used freely available satellite data to measure how effective these changes are.

The count of confirmed exoplanets has just ticked past the 5,000 mark, representing a 30-year journey of discovery led by NASA space telescopes.

Despite global Sustainable Development Goals and commitments made in 2015, just 29 African nations have made some progress over the past three to five years, 25 have made none, according to the UN's first-ever assessment of water security in Africa.

While the popular Netflix movie "Don't Look Up" has raised public consciousness to the potential catastrophic effects of asteroid impact to planet Earth, new research sheds light on how the Chicxulub impact 66 million years ago resulted in extinction of 75 percent of animals on Earth, including the dinosaurs.

If you see the northern lights overhead, chances are you are in a chilly, polar climate. But the cold-weather delights—also known as aurora borealis—high above you are actually an important source of heat. A new NASA mission hopes to fly through an active aurora to study this energy exchange process up close. The launch window for Ion-Neutral Coupling during Active Aurora, or INCAA mission, opens at the Poker Flat Research Range in Poker Flat, Alaska, on March 23.

Less than 10% of the 380 million metrics tons of annually produced plastics are currently recycled in the U.S., creating a global environmental threat caused by plastic production and the absorption of millions of tons of waste into bodies of water each year. When you look at plastics like polyester, that percentage goes down.

A genomic study of Native peoples in the San Francisco Bay Area finds that eight present-day members of the Muwekma Ohlone Tribe share ancestry with 12 individuals who lived in the region several hundred to 2,000 years ago.

Biologists have developed a new method to measure the extent to which regional geographic features—including barriers between regions, like mountains or water—affect local rates of speciation, extinction and dispersal for species. As a test case, they successfully used their model to delineate the movement and diversification of neotropical anole lizards.

Although the Arecibo radio telescope is no more, it continues to deliver scientific discoveries. There is a wealth of Arecibo data astronomers continue to mine for new discoveries, and one of them is thanks to an astronomical technique known as planetary radar.

A new report released today by Centre for Invasive Species Solutions CEO, Mr Andreas Glanznig, shows that the combined efforts of scientists, governments and land managers to control the pest have resulted in huge benefits for primary producers and threatened species.

In a new publication from Opto-Electronic Advances, researchers from South China University of Technology, Guangzhou, China, discuss silicon cuboid nanoantenna with simultaneous large Purcell factor for electric dipole, magnetic dipole and electric quadrupole emission.

Researchers from Brunel University London found 150 chemicals that had leached into drinks from plastic bottles, with 18 of those chemicals found in levels exceeding regulations.

Historians note a shift from Eurocentric conceptualizations of science during the late nineteenth century. Spurred by a burgeoning print culture and widespread dissemination of news regarding scientific discoveries, "science" as a term began to be applied throughout various cultures as a means of describing rigorous systems of knowledge production. Civilization-specific alternatives, such as "Indian science" or "Islamic science," arose to challenge the supremacy of "European" science. Applying the... Читать дальше...

In a world-first, scientists from BGI-Research, Chinese Academy of Sciences, and a group of partners published a study in Nature, announcing the discovery of a transgene-free, rapid, and controllable method to convert pluripotent stem-cells into bona fide 8-cell totipotent embryo-like cells, paving the way for advances in organ regeneration and synthetic biology.

Like flocks of birds or schools of fish, crowds of humans also tend to move en masse—almost as if they're thinking as one. Scientists have proposed different theories to explain this type of collective pedestrian behavior.

As ice coverage across the Great Lakes falls from winter highs with spring and summer warming ahead, Lake Michigan is likely to end up with a just-below-average season.

When manatees on Florida's east coast gather next winter, they're likely to face another season of starvation.

Because of the vast high-elevation land, with an average elevation of over 4km, the Tibetan Plateau (TP) is known as the world's third pole. Its unique mid-latitude climate and elevation that provides a headwater area for many large Asiatic rivers allows the TP to play an important role in the water cycle and regional ecology.

Biofouling is challenging for underwater sensors, especially for long-term in situ monitoring in marine environments. Biofouling on in situ sensor surfaces can shorten their operating lifetime, increase the cost and frequency of maintenance, and result in signal drift and data errors.