País

• Home
• país
• Austrália

Materials with enhanced thermal conductivity are critical for the development of advanced devices to support applications in communications, clean energy and aerospace. But in order to engineer materials with this property, scientists need to understand how phonons, or quantum units of the vibration of atoms, behave in a particular substance. "Phonons are quite important for studying new materials because they govern several material properties such as thermal [...]

A nitrogen-vacancy (NV) center is a defect in the crystal structure of diamond, where a nitrogen atom replaces a carbon atom in the diamond lattice and a neighboring site in the lattice is vacant. This and other fluorescent defects in diamond, known as color centers, have attracted researchers' attention owing to their quantum properties, such as single-photon emission at room temperature and with long coherence time. Their many applications include quantum information encoding and [...]

The ability to transmit information coherently in the band of the electromagnetic spectrum from microwave to infrared is vitally important to the development of the advanced quantum networks used in computing and communications. A study conducted by researchers at the State University of Campinas (UNICAMP) in Brazil, in collaboration with colleagues at ETH Zurich in Switzerland and TU Delft in the Netherlands, focused on the use of nanometric optomechanical cavities for this purpose. These [...]

Consuming soy foods is often said to be good for women's health, and much research has been conducted in recent decades to find out whether it can explain why Asian women, whose diet contains plenty of soy foods, have few or none of the usual symptoms of menopause reported by women in the West, such as hot flushes, insomnia, irritability and depression. "Soy isoflavones are important sources of bioactive compounds and belong to the class of phytoestrogens — substances [...]

Some wasps and bees are able to recognize sick nestmates by smell and can prevent their entry into the nest to avert infection of the entire colony, assuring its survival and that of the species in the long run. A study supported by FAPESP and described in an article published in the journal Environmental Science and Pollution Research shows that this recognition does not happen in paper wasps of the species Mischocyttarus metathoracicus infected by a biopesticide based on the [...]

Gas exchanges between the atmosphere and the ocean are a key part of the carbon cycle, playing a vital role in climate regulation and maintenance of the planet's ecological equilibrium. The oceans are thought to absorb roughly a third of all the carbon dioxide (CO2) emitted by humanity. Understanding the complex processes involved in this gas exchange is therefore extremely important, especially in the context of the global climate crisis. A new study discusses the processes that [...]

Gas exchanges between the atmosphere and the ocean are a key part of the carbon cycle, playing a vital role in climate regulation and maintenance of the planet's ecological equilibrium. The oceans are thought to absorb roughly a third of all the carbon dioxide (CO2) emitted by humanity. Understanding the complex processes involved in this gas exchange is therefore extremely important, especially in the context of the global climate crisis. A new study discusses the processes that [...]

The Piracicaba, Capivari and Jundiaí (PCJ) River Basin comprises 76 municipalities in São Paulo state, Brazil, with more than 5.8 million inhabitants and a drainage area of more than 14,000 square kilometers. These three rivers and their tributaries are essential sources of drinking water, energy, irrigation for agriculture and water for industrial processes. Demand is very high, and the resulting water shortage is exacerbated by the climate crisis. This is not the only problem or [...]

Publications on sugarcane have increased exponentially since 2006 worldwide, and Brazil has had more articles published on the topic than any other country in the period, according to a review in BioEnergy Research. The number of articles on the subject averaged about five per year between 1999 and 2006 but had reached 327 by 2021. Brazil has twice as many articles on sugarcane as the United States, which ranks first in the world for scientific publications in general. Brazil is [...]