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Phys.org
Апрель
2024

Новости за 12.04.2024

Fast radio bursts: Research introduces a novel approach to characterize their behavior

Phys.org 

Fast radio bursts (FRBs) represent the most intense radio explosions in the universe. Since the first discovery in 2007, FRBs have garnered significant attention, culminating in the 2023 Shaw Prize in Astronomy. With yet unknown origin, these extreme cosmic bursts are among the most enigmatic phenomena in astronomy as well as physics.

Theories that explain the crisis in democracy are inadequate for Latin America, experts say

Phys.org 

The theories offered by the dominant literature in political science today to try to explain the sources of the political polarization that has endangered democracy around the world are adequate for the United States and Europe, but do not make sense for the countries of Latin America. For this reason, greater collaboration among political scientists is needed to identify other, more plausible hypotheses for the phenomenon that the region is also experiencing.

Allowing consumers who purchased goods online to return them to retail stores can be a win-win

Phys.org 

Many consumers who shop online prefer to return items to brick-and-mortar stores rather than mail them back. In a new study, researchers assessed a new practice called return partnership, in which online retailers partner with retailers with physical stores to offer offline returns. They conclude that this arrangement can benefit both online and store retailers, though businesses should be careful to choose the right partners.



Designing a cost-effective X-ray free electron lasers facility

Phys.org 

Many advances in structural science since the 1970s were made by probing materials with synchrotron radiation: that is, high energy X-rays generated through accelerating high-energy electrons. The latest generation of such sources, X-ray free electron lasers (XFEL), are far more powerful than their predecessors but are only accessible to international consortia and a few rich countries because of their high cost.

Problems with 3 Body Problem? Experts discuss physics, mathematics behind hit Netflix show

Phys.org 

The science fiction television series 3 Body Problem, the latest from the creators of HBO's Game of Thrones, has become the most watched show on Netflix since its debut last month. Based on the bestselling book trilogy Remembrance of Earth's Past by Chinese computer engineer and author Cixin Liu, 3 Body Problem introduces viewers to advanced concepts in physics in service to a suspenseful story involving investigative police work, international intrigue, and the looming threat of an extraterrestrial invasion.

Biden plans sweeping effort to block Arctic oil drilling

Phys.org 

The U.S. set aside 23 million acres of Alaska's North Slope to serve as an emergency oil supply a century ago. Now, President Joe Biden is moving to block oil and gas development across roughly half of it.

Searching for new asymmetry between matter and antimatter

Phys.org 

Once a particle of matter, always a particle of matter. Or not. Thanks to a quirk of quantum physics, four known particles made up of two different quarks—such as the electrically neutral D meson composed of a charm quark and an up antiquark—can spontaneously oscillate into their antimatter partners and vice versa.

Study finds link between ecosystem multifunctionality and microbial community features

Phys.org 

Ecosystem multifunctionality (EMF) is the ability of an ecosystem to provide multiple functions simultaneously. Microorganisms are proxies for soil communities and possess diverse functional traits that support multiple ecosystem functions. However, the complex relationships between the microbial network and EMF, especially at a large spatial scale, remain largely unknown.

A model to promote the coordination between environmental protection and agricultural development in Erhai Lake

Phys.org 

Erhai Lake, covering 252 km2, located in Yunnan Province, is one of the seven largest freshwater lakes in China. However, over the last three decades, the lake has suffered pollution episodes. In order to solve this problem, the local government has taken many protective measures. These measures have achieved some results in the environmental protection of Erhai Lake, but also caused significant socioeconomic impact.

Study uncovers the role of soil microbes in forest ecosystems

Phys.org 

Assessing the function of forest ecosystems requires a deep understanding of the mechanisms of soil nitrogen mineralization. A study conducted by a team of researchers has shed light on how soil N-cycling genes drive soil nitrogen mineralization during afforestation.





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