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A protein found in cells of the hard tick Amblyomma sculptum, the main vector of the bacterium that causes Brazilian spotted fever (also known as Rocky Mountain spotted fever), is essential to the tick’s survival while feeding, making it a promising target for development of a vaccine, according to an article published in the journal Parasites & Vectors. The study was conducted by researchers at the University of São Paulo (USP) in Brazil. Brazilian spotted fever [...]

A protein found in cells of the hard tick Amblyomma sculptum, the main vector of the bacterium that causes Brazilian spotted fever (also known as Rocky Mountain spotted fever), is essential to the tick's survival while feeding, making it a promising target for development of a vaccine, according to an article published in the journal Parasites & Vectors. The study was conducted by researchers at the University of São Paulo (USP) in Brazil. Brazilian spotted fever is caused by [...]

Fundação de Amparo à Pesquisa do Estado de São Paulo A group of researchers at the State University of Campinas (UNICAMP), in São Paulo state, Brazil, has developed an algorithm that projects the future of vegetation in the Amazon, presenting scenarios for transformation of the forest driven by climate change. One of the results shows that a drier climate in the region, with a 50% drop in precipitation, could increase diversity but lower the level of [...]

Science is founded on hard evidence, but ironically, many of the stories we tell about scientists and their experiments are not based on much truth. An apple falling on Newton's head didn't suddenly stimulate his idea of gravity; Darwin's theory of evolution wasn't founded on the beaks of finches. And Benjamin Franklin certainly didn't discover electricity by holding a kite in a storm. It's hard enough to imagine a great scientific mind [...]

Benjamin Franklin strode outside one day in 1752, flew his kite in a thunderstorm, and discovered electricity when it got struck by lightning. Right? Well, no. There are several inaccuracies in that sentence. Franklin performed the experiment while remaining under shelter, there was no lightning strike, and he certainly didn’t discover electricity – he just confirmed the link between lightning and sparks made by other things he and his peers had been tinkering with, [...]

Initiatives involving nature-based solutions (NbS) are increasingly frequent in Europe and the United States, but still scarce in Brazil and rarely part of local public policy even when mayors are aware of the concept. This is one of the findings of a survey conducted in Brazil by scientists at the University of São Paulo (USP) and the Federal University of the ABC (UFABC), also in São Paulo state. Based on questionnaires and a focus group of municipal technicians and project [...]

Palm trees infected with lethal bronzing disease emit signals that warn nearby healthy palms of the threat. Those healthy palms produce their own defense that University of Florida scientists one day hope to harness to protect palms against the disease. Entomologist Brian Bahder and his team at UF/IFAS Fort Lauderdale Research and Education Center (UF/IFAS FLREC) consider the study’s outcome a turning point for palm disease research because it has high potential [...]

A cleft lip or palate arises from the combined effects of genes and inflammatory risk factors experienced during pregnancy, such as smoking or infections, finds a new study led by UCL researchers. The study, published in Nature Communications, has revealed for the first time how genetic and environmental factors come together to form a cleft lip or palate in a developing foetus. Cleft lip, with or without cleft palate, is the most common craniofacial malformation seen at birth, affecting [...]

Newborn babies who experience low levels of oxygen in their body tissues (hypoxia) due to sleep apnea, for example, tend to develop respiratory problems and hypertension (high blood pressure) in adulthood, and these problems may persist for the rest of their lives. Research by scientists at São Paulo State University (UNESP) in Brazil shows for the first time that hypertension in these cases is caused by dysregulation of the autonomic nervous system, which controls involuntary [...]