Новости за 28.03.2024

Iron screws and other so-called ferromagnetic materials are made up of atoms with electrons that act like little magnets. Normally, the orientations of the magnets are aligned within one region of the material but are not aligned from one region to the next. Think of packs of tourists in Times Square pointing to different billboards all around them. But when a magnetic field is applied, the orientations of the magnets, or spins, in the different regions line up and the material becomes fully magnetized. Читать дальше...

How much fuel can we add to the fire while still maintaining control? Metaphorically speaking, that's the question one team at the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) has been asking themselves lately.

The gut microflora plays a pivotal role in the overall well-being of all living organisms. Like their multifaceted and beneficial role in humans, the role of the gut microbiome in maintaining health, behavior, and ecology of animals is unequivocal. Now, researchers from Japan investigated the impact of combined administration of prebiotics and paraprobiotics to understand how they impact penguin health. Parasynbiotics were found to improve gut health and reduced inflammatory responses, enhancing overall health.

Superconducting nanowire single-photon detectors (SNSPDs) have been widely used in various applications requiring single photon detection thanks to their attractive performances. Since SNSPDs are thin films of serval nanometers in thickness, they are convenient to fabricate on various substrates and combine with other photonic structures.

In many chemical-related industries, such as pharmaceuticals, oil refineries, and food and beverage factories, separating organic liquid mixtures is an essential step. A staple method to achieve this is distillation, which involves heating a mixture to a specific temperature so that only one of its components vaporizes.

U.S. scientists and policy experts with a broad range of expertise in the fields of climate and ecosystem sciences have outlined key recommendations aimed at bolstering the scientific foundation for implementation of nature-based climate solutions (NbCS) across the nation.

Spotted hyenas are known for hunting (or scavenging) larger mammals such as antelopes and occasionally feed on smaller mammals and reptiles. Being flexible in the choice of prey is a strategy of generalists—and this even extends to small passerine birds, as scientists from the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) and the University of Ljubljana observed in Namibia.

Research from Queen Mary University of London academic Dr. Mina Tajvidi, delves into marketing communications targeted at mature consumers aged 50 and above, addressing definitional inconsistencies and reviewing research published since 1972.

Vanderbilt biochemists are part of a team taking a stride toward the development of antibacterials to treat uncomplicated urinary tract infections, a pervasive bacterial infection that affects 50%–60% of women in their lifetime.

More than half a million cats in the United States could be at risk of a severe or even fatal neurological reaction to the active ingredient in some top-selling parasite preventatives for felines.

You don't need to be an influencer with hundreds of thousands of followers to have a real-world impact during a crisis, according to a new study published in the Australasian Journal of Information Systems.

Identifying terrorists by analyzing their online activities is an approach that is sometimes at odds with international law, especially if the outcome is death. A study has documented this problematic legal and ethical issue.

Researchers conducted a study on tropane alkaloids (TAs), crucial natural compounds found abundantly in various plant families. TAs, often toxins, include major ones like L-hyoscyamine, atropine, and scopolamine, each with distinct pharmacological uses.

Just as many people battle seasonal colds and flu, native plants face their own viral threats. People have long known that plants can succumb to viruses just like humans. Now, a new study led by Michigan State University and the University of California, Riverside reveals a previously unknown threat: non-native crop viruses are infecting and jeopardizing the health of wild desert plants.

Household consumption in China is associated with substantial PM2.5 pollution through activities directly (i.e., fuel use) and/or indirectly (i.e., consumption of goods and services) causing pollutant emissions. Urban and rural households exhibit different consumption preferences and living areas; thus, their contributions to and suffering from air pollution could differ.

You've probably seen nature depicted in art, but how often do you see an artwork hiding in nature?

When large numbers of gray whales began washing up along North America's Pacific Coast nearly six years ago, marine scientists could only speculate on the reason: Was it disease? Ocean pollution? Increasing ship collisions?

The transition from the fifth to the fourth century BCE (Before the Common Era) seems to have been a critical period for the Central Andes, a region now part of Peru. Researchers have found evidence of turbulence during the passage from the Middle Formative period (1200–400 BCE) to the Late Formative period (400–1 BCE). Political disintegration and intergroup violence were apparently part of the context, possibly associated with a shift from theocracy to secular government.

The EU has recently made far-reaching decisions on rapid greenhouse gas emissions reduction. For example, from 2027, like in the energy and industry sectors, it will also cap emissions in the problem sectors of heating and transport through emissions trading, and gradually reduce them toward zero.

To woo a mate, the Albert's lyrebird of Australia first chooses a stage of entangled vines, then in performance he shakes the vines as part of his courtship footwork, synchronizing each shake with the beat of his striking song, according to new research.

In early March, after years of deliberations, the Securities and Exchange Commission announced a new reporting requirement for U.S.-based public companies. Beginning in 2025, companies that meet a certain threshold of market value will be required by law to report carbon emissions data, as well other information related to climate risk and progress toward decarbonization pledges.

Universe Today has had some fantastic discussions with researchers on the importance of studying impact craters, planetary surfaces, exoplanets, astrobiology, solar physics, comets, planetary atmospheres, and planetary geophysics, and how these diverse scientific fields can help researchers and the public better understand the search for life beyond Earth.

Solar sails rely upon pressure exerted by sunlight on large surfaces. Get the sail closer to the sun and, not surprisingly, efficiency increases. A proposed new mission called Mercury Scout aims to take advantage of this to explore Mercury. The mission will map the Mercurian surface down to a resolution of 1 meter and, using the highly reflective sail surface to illuminate shadowed craters, could hunt for water deposits.

Language acquisition in children is one of the most fascinating features of the human species, as well as one of the most difficult problems in linguistics and cognitive science. What are the processes that enable a child to completely master its native language in just a few years, and to a degree of competence that adult learners of a second language can almost never match?

Have you ever wondered why so many images depicting the crucifixion show Jesus with a very defined, slender and toned body? Either slim, but with a six-pack, or displaying muscles and brawn. While these images are hardly a reflection of what little can be surmised about the historical Jesus, they certainly reflect social and cultural ideas about masculinity and idealized notions of manhood.