Veículo
My Droll (Índia)
Em 2026: 0 notícias
Desde 1995: 57 notícias
Quantum phase transition discovered in a quasi-2D system consisting purely of spins
Publicado em 12 de julho de 2021
Pure quantum systems can undergo phase transitions analogous to the classical phase transition between the liquid and gaseous states of water. At the quantum level, however, the particle spins in states that emerge from phase transitions display collective entangled behavior. This unexpected observation offers a new avenue for the production of materials with topological properties that are useful in spintronics applications and quantum computing.
The discovery was made by an international [...]
-
A 50% Rise In Carbon Dioxide Level Could Reduce Rainfall In The Amazon More Than Deforestation
Publicado em 30 junho 2021A 50% rise in the level of carbon dioxide (CO2) in the atmosphere could reduce rainfall in the Amazon as much as or even more than substitution of the entire forest by pasture. The rise in CO2 would reduce the amount of water vapor emitted by the forest, leading to a 12% annual drop in the volume of rainfall, while total deforestation would reduce rainfall by 9%. These estimates are presented in a study published in Biogeosciences by scientists affiliated with the National [...]ver notícia -
Concepts From Physics Explain Importance Of Quarantine To Control Spread Of COVID-19
Publicado em 24 junho 2021Mathematical models that describe the physical behavior of magnetic materials can also be used to describe the spread of the novel coronavirus that causes COVID-19. This is the conclusion of a study conducted in Brazil by researchers affiliated with São Paulo State University (UNESP) in Rio Claro and Ilha Solteira and reported in an article published in Physica A: Statistical Mechanics and its Applications. The study was part of a project led by Mariano de Souza, a professor at [...]ver notícia -
Marine Sediments Explain How Part Of Brazil’s Northeast Region Became Semi-Arid
Publicado em 23 junho 2021Rainfall associated with the Intertropical Convergence Zone (ITCZ), the belt of converging trade winds and rising air that encircles the Earth near the Equator, affects the food and water security of approximately 1 billion people worldwide. They include about 11% of the Brazilian population, concentrated in four states of the Northeast region—Rio Grande do Norte, Ceará, Piauí, and Maranhão. Large swaths of these states have a semi-arid climate, and about half of all [...]ver notícia -
Poaching Affects Behavior Of Endangered Capuchin Monkeys In Brazilian Biological Reserve
Publicado em 22 junho 2021A study conducted in the Una Biological Reserve in the state of Bahia, Brazil, shows that in a habitat with high hunting pressure the risk of predation has such a significant impact on the behavior of the Yellow-breasted capuchin monkey Sapajus xanthosternos that it even avoids areas offering an abundant supply of plant biomass and invertebrates, its main sources of food. An article reporting the findings of the study is published in the American Journal of [...]ver notícia -
Experiments Simulate Possible Impact Of Climate Change On Crabs
Publicado em 15 junho 2021Albeit very small, with a carapace width of only 3 cm, the Atlantic mangrove fiddler crab Leptuca thayeri can be a great help to scientists seeking to understand more about the effects of global climate change. In a study published in the journal Estuarine, Coastal and Shelf Science, Brazilian researchers supported by São Paulo Research Foundation (FAPESP) show how the ocean warming and acidification forecast by the end of the century could affect the lifecycle of these [...]ver notícia -
Covid May Lead To Emergence Of ‘Superfungus’ In Brazil, Say Scientists
Publicado em 15 junho 2021Overcrowded hospitals, exhausted health care workers, and other factors are creating “ideal conditions” for the emergence of a “superfungus” with the ability to resist drug treatment, warn scientists. The first two cases of infection with the fungus Candida auris in Covid patients, described in the Journal of Fungi, was reported in a hospital in Salvador in the state of Bahia, Brazil. “Nine other C auris patients have since been [...]ver notícia -
Most Cities In São Paulo State Have Low Potential Capacity To Adapt To Climate Change
Publicado em 09 junho 2021Most cities in São Paulo state (Brazil) have low potential capacity to adapt to climate change in terms of the ability to formulate public policy that facilitates the revamping of their housing and transportation systems, for example, to account for the impact of climate change. This is the main conclusion of a study conducted by researchers at the University of São Paulo (USP) in partnership with colleagues at the University of Campinas (UNICAMP) and the Federal University of [...]ver notícia -
Researchers identify the causes of the extreme drought that affected the Pantanal
Publicado em 25 maio 2021The extreme drought suffered by the Pantanal in 2019-20, considered the worst in the last 50 years, was caused by natural climate conditions similar to those underlying the 2014-16 water crisis in São Paulo state. The Pantanal is one of the world’s largest wetlands. The Brazilian portion is located in the Center-West region, mainly Mato Grosso do Sul state. The 2019-20 extreme drought was studied by researchers affiliated with the Natural Disaster Surveillance and Early Warning [...]ver notícia -
Soybean and linseed oils added to cows’ diet improves the quality of milk
Publicado em 07 maio 2021Inclusion of soybean and linseed oils in the diet of dairy cows made the fatty acid content material of their milk even more healthy for human diet. It additionally elevated the proportions of omega-6 and omega-3, which in the proper steadiness play a key position in stopping cardiovascular ailments, for instance, in addition to persistent irritation and some varieties of most cancers. Cardiovascular ailments are one of the world’s principal public well being issues. In Brazil, [...]ver notícia