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Just one week of strength training was enough to increase visceral fat breakdown in obese mice, even though their body weight had not yet changed. Researchers at the State University of Campinas (UNICAMP) found that seven days of exercise activated biological processes that break down stored fat, reduced the size of fat cells, and lowered the amount of fat surrounding the animals' intestines. The study, published in the journal Life Sciences , was designed to examine what happens to [...]

Scientists have identified a previously unknown frog species living in the seasonally flooded forests of the western Amazon. Named Adenomera varcena , the species adds to growing evidence that Amazonian biodiversity is even richer than it appears. The discovery also highlights the importance of cryptic diversity, in which animals that look nearly identical can actually belong to separate species. Researchers distinguished the new frog by combining several lines of evidence, including its DNA [...]

A newly identified dinosaur species discovered during construction work in northeastern Brazil is offering fresh clues about how giant dinosaurs spread across ancient continents. The species, named Dasosaurus tocantinensis , is described in a study published in the Journal of Systematic Palaeontology . The animal measured about 20 meters long and lived roughly 120 million years ago. Its fossils were found at the site of a road rail terminal under construction in Davinópolis, a city in the [...]

A study published in Nature Communications has revealed an unusual form of quantum oscillation in a three-dimensional topological insulator. The findings show that electrons in zirconium pentatelluride (ZrTe 5 ) can behave in unexpected ways when exposed to temperatures close to absolute zero and extremely powerful magnetic fields. The research was led by scientists from the University of São Paulo (USP) in Brazil, Los Alamos National Laboratory, the University of Washington, and other U.S. [...]

A combination of omega-3 and low-dose acetylsalicylic acid (ASA) performed about as well as antibiotics in a yearlong study of people with severe periodontitis, raising the possibility of an alternative treatment for some patients. The research was conducted by scientists affiliated with Albert Einstein Israelite Hospital, Guarulhos University (UNG), the University of Taubaté (UNITAU), and the Ribeirão Preto School of Dentistry at USP (FORP-USP) in Brazil, along with Harvard University in [...]

A large study involving more than 5,500 adults over age 50 has identified a potentially dangerous combination of health risks. People who had both abdominal obesity and vitamin D deficiency faced a 123% higher risk of death compared with those who had neither condition. The findings, published in the journal Diabetes, Obesity and Metabolism , suggest that the two conditions may be especially harmful when they occur together. Although each was associated with a higher risk of death on its [...]

Some long-necked dinosaurs may have been far more capable of standing upright than their enormous bodies suggest. About 66 million years ago, two South American sauropods could rise onto their hind legs and remain there for relatively long periods, especially when they were young. This ability may have helped them reach leaves high in trees, appear more intimidating to predators, attract mates, or reproduce. The dinosaurs, Uberabatitan from Brazil and Neuquensaurus from Argentina, were [...]

Researchers in Brazil have created a new biomaterial made from jackfruit latex, pomegranate peel extract, and simvastatin (a statin-based medication) that could offer a more effective way to treat periodontitis, a serious form of gum disease. The team, from the Faculty of Medical and Health Sciences (FCMS) at the Pontifical Catholic University of São Paulo (PUC-SP) in Sorocaba, developed the material as part of an effort to improve treatment options for a condition that affects the tissues [...]

Scientists studying ancient microfossils from Brazil have discovered that structures once believed to be traces left behind by tiny animals were actually formed by communities of microscopic bacteria and algae. The findings challenge previous ideas about when small animals first appeared on Earth and suggest oxygen levels in ancient oceans may still have been too low to support certain forms of animal life around 540 million years ago. The research focused on fossils found in the Brazilian [...]