Veículo
La Revue Gauche
Em 2026: 17 notícias
Desde 1995: 80 notícias
Organism absorbs little of the minerals from nuts, points a study that simulated human digestion
Publicado em 01 de julho de 2026
The presence of minerals in oilseeds, such as Brazil nuts (Bertholletia excelsa) and cashews (Anacardium occidentale), does not guarantee that the body will utilize them. A study conducted at the Diadema campus of the Federal University of São Paulo (UNIFESP) in Brazil and published in the journal Química Nova evaluated the bioavailability of these nutrients. Bioavailability is defined as the fraction of the mineral actually released during simulated gastrointestinal digestion and potentially [...]
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Longer droughts and changes in rainfall are already occurring in the Amazon, research indicates
Publicado em 01 junho 2026According to two recently published studies led by scientists from Brazil’s National Institute for Space Research (INPE), the Brazilian Amazon is already beginning to experience scenarios previously projected for the coming decades, including longer dry seasons and changes in rainfall patterns. Without integrated policies and initiatives to combat climate change, the situation could rapidly intensify, posing risks to biodiversity, the replenishment of natural water reservoirs, and the [...]ver notícia -
Extreme weather events threaten river ecosystems
Publicado em 28 maio 2026Severe droughts, intense floods, and heat waves are pushing river ecosystems beyond their natural limits of resilience. A review of data on river systems across several continents published in the journal Nature Reviews Biodiversity shows that, in most cases, nature is unable to return to its previous state after successive extreme weather events. The consequences range from local extinctions and food chain collapses to permanent changes in the services that rivers provide to human [...]ver notícia -
Spent hop derived from beer production is incorporated into sunscreen
Publicado em 22 maio 2026Research conducted at the University of São Paulo (USP) in Brazil revealed that hops (Humulus lupulus L.) industrial waste from the brewing industry is a viable option for sunscreen formulation production. The multidisciplinary study, which involved researchers from USP’s School of Pharmaceutical Sciences (FCF), was inspired by the large amount of waste generated and discarded during beer production. The study brought together complementary expertise in natural products and bioactive [...]ver notícia -
Wetlands In Brazil’s Cerrado Are Carbon-Storage Powerhouses
Publicado em 17 abril 2026The Amazon rainforest is famous for storing massive amounts of carbon in its trees and soils, helping regulate the global climate. Yet a paper published in New Phytologistshows that one of South America’s largest carbon-storing ecosystems exists in an often-overlooked grassy savanna: the Cerrado in Brazil. The study was led by Larissa Verona, a technician working with senior scientist Amy Zanne at Cary Institute of Ecosystem Studies and a former graduate student at Universidade Estadual de [...]ver notícia -
Reduced-Impact Management Can Promote Forest Recovery And Carbon Storage
Publicado emThe adoption of management techniques that reduce the impact of timber harvesting can promote the recovery of tropical forests, such as the Amazon, and store carbon in the long term while maintaining biodiversity and ecosystem services. Research published in the Journal of Environmental Management provides evidence that these good practices increase above-ground biomass, unlike conventional logging. This reinforces the effectiveness of reduced-impact logging forest management (RIL-FM) as a [...]ver notícia -
The complete genome of the golden lancehead reveals how genes responsible for venom toxins evolved
Publicado emA research team led by scientists at the Butantan Institute in São Paulo, Brazil, and funded by FAPESP, has completed the most extensive genetic sequencing of a jararaca viper to date. The focus of the study was the genome of the golden lancehead (Bothrops insularis), particularly its venom genes. Since the species shares most of its genes with the other 48 species in the genus, the data serve as a reference for broader studies on the evolution of jararaca vipers and their toxins. The study [...]ver notícia -
Living in a favela influences how people move around the city
Publicado emA study based on the analysis of mobile phone data reveals that residents of favelas in the city of São Paulo, Brazil, exhibit less variability in their daily travel patterns than residents of formal areas with similar incomes. The study was published in the journal Transportation and was authored by Matheus Henrique Barboza from the Engineering School of the University of São Paulo (Poli-USP). Barboza’s work was supervised by Mariana Giannotti and co-authored by Anna Grigolon and Karst [...]ver notícia -
Natural dye produced by Amazonian fungus can be used in cosmetics
Publicado emInitial tests with a natural dye produced by the Amazonian fungus Talaromyces amestolkiae show that eco-friendly cosmetics, such as face creams, gel sticks, and shampoos, can be developed with antioxidant and antibacterial properties. This finding is significant because microbial dyes, which are still under-explored in cosmetic research, can serve as a sustainable alternative to synthetic dyes. The fungus produces vibrant dyes ranging from red to yellow with high industrial potential. [...]ver notícia -
Researchers Create Index To Assess Soil Health In Mangroves
Publicado emBrazilian researchers have developed an index that can measure the health of mangrove soils at different stages. When applied to degraded, restored, and preserved areas, the index revealed that healthy mangroves, including recovered ones, provide ecosystem services at nearly maximum capacity. In contrast, deforested mangroves have only a small fraction of this potential. The Soil Health Index (SHI) ranges from 0 (worst) to 1 (best) and is described in an article published in the journal [...]ver notícia