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Scientists identify plant that flowers in Brazilian savanna one day after fire
Publicado em 18 de junho de 2019
Plants in the Brazilian savanna, the Cerrado, have evolved to deal with fire. When fire is used intelligently as part of a carefully planned land management method, it is indispensable to the conservation of this superb ecosystem, the world's most biodiverse savanna. Two months suffice for the Cerrado to burst into flower after a fire (read more at agencia.fapesp.br/26064 and agencia.fapesp.br/26542).
The study "From ashes to flowers: a savanna sedge initiates flowers 24 h after [...]
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3D reconstruction of craniums elucidates the evolution of New World monkeys
Publicado em 17 junho 2019Cranial fossils belonging to two extinct species of monkey - Caipora bambuiorum and Cartelles coimbrafilhoi - were examined by computed tomography (CT) scan and reconstructed with three-dimensional imaging by a group of scientists from various countries. The fossils were found almost 30 years ago in a cave complex in Bahia, Brazil, located in the Caatinga, a semiarid biome that occupies part of Brazil's Northeast Region. The images were compared with those of craniums from 14 extant [...]ver notícia -
Modified enzyme can increase second-generation ethanol production
Publicado em 14 junho 2019One of the main challenges of second-generation biofuel production is identifying enzymes produced by microorganisms for use in a "cocktail" of enzymes to catalyze biomass hydrolysis, in which the enzymes act together to break down the carbohydrates in sugarcane trash and bagasse, for example, and convert them into simple sugars for fermentation. A group of researchers at the University of Campinas (UNICAMP), working in partnership with colleagues at the Brazilian Biorenewables [...]ver notícia -
Study shows that strength and weight training can control diabetes in obese individuals
Publicado em 13 junho 2019Research conducted at the University of Campinas (UNICAMP) in São Paulo State, Brazil, shows that vigorous physical exercise such as strength and weight training can reduce accumulated liver fat and improve blood sugar control in obese and diabetic individuals in a short time span, even before significant weight loss occurs. In experiments with mice, researchers at UNICAMP's Molecular Biology of Exercise Laboratory (LaBMEx) found that two weeks of such exercise was sufficient to [...]ver notícia -
Sickle cell disease needs more attention
Publicado em 12 junho 2019The promise of new treatments for sickle cell disease, a group of inherited red blood cell disorders, has never been so great, but it will only be realized if there is constant investment in health policies such as programs for screening newborns, especially in sub-Saharan Africa, where most cases occur. This point is made in a comprehensive review of the main research findings regarding sickle disease published in Nature Reviews Disease Primers and signed by experts affiliated with [...]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 (https://bv.fapesp.br/en/pesquisador/171695/sergio-nascimento-stampar/), a [...]ver notícia -
A combination of agrochemicals shortens the life of bees, study shows
Publicado em 30 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%. 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, an online journal owned by [...]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. 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 Brazil's National Space Research Institute (INPE) to monitor [...]ver notícia -
Enzyme may indicate predisposition to cardiovascular disease
Publicado em 17 maio 2019Measuring the blood plasma levels of an enzyme called PDIA1 could one day become a method of diagnosing a person's predisposition to cardiovascular disease even if they are healthy, i.e., not obese, diabetic or a smoker, and with normal cholesterol. This is suggested by a study published in the journal Redox Biology by Brazilian researchers affiliated with the University of São Paulo (USP), the University of Campinas (UNICAMP) and Butantan Institute. The investigation was conducted [...]ver notícia -
Study finds that collaborating with business contributes to academic productivity
Publicado em 03 maio 2019Interaction between universities and companies in Brazil has societal, economic and environmental impacts, as well as positive effects on academic productivity. Researchers and research groups who collaborate with business organizations are scientifically more productive. The intellectual and scientific impacts of the partnership are positive. This is the main finding of a study conducted by Renato de Castro Garcia, a professor at the University of Campinas Economics Institute (IE-UNICAMP), [...]ver notícia