Новости за 08.04.2024

In a study published in the Journal of Archaeological Method and Theory, archaeologists from Université de Montréal and the University of Genoa reveal that far from being more primitive, Neanderthals did much the same as their Homo sapiens successors: made themselves at home.

There is something shocking about trying to save one species by killing nearly half a million of another species. That's what the U.S. Fish and Wildlife Service has proposed in a plan to save the spotted owls of the northwestern United States from extinction by shooting hundreds of thousands of barred owls over three decades.

A pair of archaeologists, one with Adam Mickiewicz University in Poznań, the other with the University of Warsaw, both in Poland, has found evidence suggesting that rock carvings found in a southern part of Peru may have been inspired by people singing while consuming hallucinogenic plants. In their study, published in the Cambridge Archaeological Journal, Andrzej Rozwadowski and Janusz Wołoszyn analyzed rock carvings found in Toro Muerto.

Researchers using Murriyang, CSIRO's Parkes radio telescope, have detected unusual radio pulses from a previously dormant star with a powerful magnetic field.

An international research team led by Gregory Desvignes from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has used the Effelsberg and Jodrell Bank radio telescopes to observe the precessing magnetar XTE J1810-197—a highly magnetized and ultra-dense neutron star—shortly after its X-ray enhanced activity and radio reactivation.

Ever since its discovery in 2004, graphene has been revolutionizing the field of materials science and beyond. Graphene comprises two-dimensional sheets of carbon atoms, bonded into a thin hexagonal shape with a thickness of one atom layer. This gives it remarkable physical and chemical properties.

The last time a total solar eclipse cast its shadows across the United States in August 2017, Jenée Chizick-Agüero, the founder and publisher of Motivos magazine, was pregnant with her son.

The Space Coast saw its 23rd launch of the year early April 5 with a SpaceX launch from Cape Canaveral Space Force Station.

Dolphins and whales use sound to communicate, navigate and hunt. New research suggests that the collections of fatty tissue that enable toothed whales to do so may have evolved from their skull muscles and bone marrow.

Researchers at the Large High Altitude Air Shower Observatory (LHAASO) have accurately measured the cosmic ray all-particle energy spectrum and the mean logarithmic mass in the range of 0.3–30 peta-electronvolts (PeV). They have also discovered an "elbow" feature in the mean logarithmic mass spectrum of cosmic rays.

RNA—in the form of messenger RNA (mRNA), ribosomal RNA (rRNA), and transfer RNA (tRNA)—transforms the genome coded by DNA into proteins that form the backbone of all cellular functions. However, biochemical modifications to RNA frequently occur, with a subsequent influence on gene expression and the potential to cause disease. The sum of these functionally relevant changes to RNA is called the epitranscriptome.

Multidrug-resistant bacterial infections that cannot be treated by any known antibiotics pose a serious global threat. Publishing in the journal Angewandte Chemie International Edition, a Chinese research team has now introduced a method for the development of novel antibiotics to fight resistant pathogens. The drugs are based on protein building blocks with fluorous lipid chains.

Imagine switching on a light and being able to understand and control the inner dynamics of a cell. This is what the Dimova group has achieved: by shining lights of different colors on replicates of cells, they altered the interactions between cellular elements. Controlling these complex interactions enables us to deliver specific drugs directly into the cells. And with the flick of a switch, we could adjust or even reverse this delivery, potentially revolutionizing the treatment of cells in a smart, accurate and non-invasive way.

The boreal forest, covering much of Canada and Alaska, and the treeless shrublands to the north of the forest region, may be among the worst impacted by climate change over the next 500 years, according to a new study.

Unconventional superconducting states are states of superconductivity rooted in physical processes that do not conform with the conventional theory of superconductivity, namely Bardeen, Cooper and Schrieffer (BCS) theory. These states are characterized by close interactions between magnetism and superconductivity.

The Arctic is often cited for a plethora of impacts resulting from anthropogenic climate change, including glacier retreat and reductions in floating sea ice, meltwater incursions changing ocean salinity, as well as sea level rise to name but a few. As the region is warming three times faster than the global average annually, ice-albedo feedbacks will only exacerbate the issue further. This mechanism focuses on melting ice exposing more "dark" surface ocean and land to absorb heat to cause further melting... Читать дальше...

Astronomers from the University of Warsaw, Poland and elsewhere have detected a new classical Cepheid variable star. The newfound star, which received designation OGLE-GD-CEP-1884, has the longest pulsation period known among such variables in the Milky Way. The finding was detailed in a research paper published March 29 on the pre-print server arXiv.

Climate change in the media is often represented through evocative images of polar bears on small floating ice rafts and bleached corals—stark white skeletons in the wasteland of a once-thriving marine community. Besides being diverse ecosystems, coral reefs have a vital role in dissipating wave energy to protect coastlines from erosion and natural disasters, as well as being important sources of tourism income for the local economy. Amidst ongoing research into coral reef degradation, scientists... Читать дальше...

After breaking their Ramadan fast outside a mosque in Malaysia, people throw their leftovers into a machine that converts the food scraps into organic fertilizer for crops.