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Long Room (EUA)
Em 2025: 0 notícias
Desde 1995: 67 notícias
Nanotechnology delivers hepatitis B vaccine
Publicado em 13 julho 2019
Brazilian and European researchers have demonstrated exactly how a nanotechnology-based compound delivers an oral vaccine against hepatitis B to the immune system. When particles containing silica and an antigen combine, even though they are different sizes, they reach the intestine without being destroyed by the acidity of the digestive system.
A compound of nanostructured SBA-15 silica and HBsAg, the hepatitis B surface antigen, was submitted to different types of X-ray imaging in European [...]
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Study contributes to the production of flexible electronic devices
Publicado em 10 julho 2019Flexible electronics is one of the most important trends in technology today. The market is growing so fast that it is expected to double in value in the next decade. Extremely light and even bendable optoelectronic equipment that supplies, detects and controls light will become commonplace in the near future. A great deal of research is progressing in this direction, as exemplified by a paper recently published in Scientific Reports. Paper - Study - Researchers - Properties - [...]ver notícia -
New dairy cattle breeding method increases genetic selection efficiency
Publicado em 05 julho 2019Brazilian scientists at São Paulo State University (UNESP) collaborating with colleagues at the University of Maryland and the United States Department of Agriculture (USDA) have developed a dairy cattle breeding method that adds a new parameter to genetic selection and conserves or even improves a population's genetic diversity. The study, which is published in Journal of Dairy Science, was funded by the São Paulo Research Foundation—FAPESP and USDA. Value - Milk - [...]ver notícia -
Yellow fever virus responsible for current epidemic in Brazil originated in Amazon in 1980
Publicado em 02 julho 2019The origin of the virus responsible for the ongoing yellow fever epidemic in Brazil, the worst in 40 years, has been identified by scientists affiliated with two Brazilian institutions, Adolfo Lutz Institute (IAL) and the University of São Paulo (USP).By means of a molecular study of yellow fever viruses found in dead monkeys and in mosquitoes, the group discovered that the strain behind the current epidemic originated in Pará State in North Brazil in 1980. Monkeys - Pará [...]ver notícia -
Climate change could affect symbiotic relationships between microorganisms and trees
Publicado em 22 junho 2019Some fungi and bacteria live in symbiosis with tree roots in forest soil to obtain mutual benefits. The microorganisms help trees access water and nutrients from the atmosphere or soil, sequester carbon, and withstand the effects of climate change. In exchange, they receive carbohydrates, which are essential to their development and are produced by the trees during photosynthesis. More than 200 scientists from several countries, including 14 from Brazil, collaborated to map the global [...]ver notícia -
Urban pollution enhances up to 400% formation of aerosols over the Amazon rainforest
Publicado em 16 junho 2019A study by an international team of researchers, including Brazilian scientists, shows that urban pollution from Manaus, the capital of Amazonas State in Brazil, increases the formation of aerosols via the Amazon Rainforest far more than expected. This sharp increase in aerosols produced by the forest has a significant impact on key drivers of global climate change, such as radioactive balance, production of clouds and rain, and the rate of plant photosynthesis. Where urban pollution does not [...]ver notícia -
Tube anemone has the largest animal mitochondrial genome ever sequenced
Publicado em 11 junho 2019The tube anemone Isarachnanthus nocturnus is only 15 cm long but has the largest mitochondrial genome of any animal sequenced to date, with 80,923 base pairs. The human mitochondrial genome (mitogenome), for example, comprises 16,569 base pairs. Tube anemones (Ceriantharia) are the focus of an article recently published in Scientific Reports describing the findings of a study led by Sérgio Nascimento Stampar, a professor in São Paulo State University's School of Sciences and [...]ver notícia -
A combination of agrochemicals shortens the life of bees, study shows
Publicado em 31 maio 2019A new study by Brazilian biologists suggests that the effect of pesticides on bees could be worse than previously thought. Even when used at a level considered nonlethal, an insecticide curtailed the lives of bees by up to 50 percent. The researchers also found that a fungicide deemed safe for bees altered the behavior of workers and made them lethargic, potentially jeopardizing the survival of the entire colony. The results of the study are published in Scientific Reports. The principal [...]ver notícia -
Study could improve fire monitoring in Brazilian savana
Publicado em 29 maio 2019A study conducted by scientists from Brazil, the United States and Portugal investigated the accuracy and consistency of different satellite data collections with regard to the location and size of burned areas in the Cerrado biome, the Brazilian savanna. Results - International - Journal - Applied - Earth The results, published in the International Journal of Applied Earth Observation and Geoinformation will help improve the output produced by Programa Queimadas, a program run by [...]ver notícia -
Replacing diesel with liquefied natural leads to a fuel economy of up to 60%
Publicado em 28 maio 2019The substitution of diesel oil with liquefied natural gas (LNG) for cargo transportation in São Paulo would possibly lead to a significant reduction in fuel costs and greenhouse gas (GHG) emissions—as well as other pollutants—in São Paulo State, Brazil. This was presented in a study by the Research Centre for Gas Innovation (RCGI) supported by the São Paulo Research Foundation—FAPESP—and Shell. Hosted at the Engineering School of the University of [...]ver notícia