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Earth.com (EUA)
Em 2026: 48 notícias
Desde 1995: 143 notícias
Study reveals how childhood stress changes the brain
Publicado em 29 de janeiro de 2024
A new study conducted by researchers at the University of São Paulo has shed new light on the link between stress experienced during adolescence and the predisposition to mental illness in adulthood.
The comprehensive research, involving experiments on rats, reveals significant alterations in gene expression within the brain, particularly in genes associated with energy metabolism.
The study provides valuable insights into how adolescent stress can [...]
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Alarming number of tree species threatened in the Atlantic Rainforest
Publicado em 16 janeiro 2024A new study by Brazilian researchers has revealed startling details about the Atlantic Rainforest biome. The experts found that 82 percent of the rainforest’s endemic trees, totaling over 2,000 distinct species, face varying degrees of extinction risk. Unprecedented assessment The scope of the research is unprecedented. The team assessed all 4,950 tree species within the Atlantic Rainforest using the criteria of the International Union for Conservation of [...]ver notícia -
Snake venom may be key to treating high blood pressure
Publicado em 07 janeiro 2024In two recently published studies, experts analyzed the venom of the lancehead pit viper Cotiara (Bothrops cotiara) and the South American bushmaster (Lachesis muta). Untapped potential The research highlights the untapped potential of venoms, as well as the biotechnological capabilities of these natural substances. Alexandre Tashima, the principal investigator of both studies, is a professor at the Federal University of São Paulo’s Medical School ( EPM-UNIFESP [...]ver notícia -
Emerging threat: Rabies virus from marmosets found in Brazilian bats
Publicado em 16 novembro 2023This finding is significant due to the potential risk of rabies transmission to humans, and is particularly concerning since a man died in May after a marmoset bite. Emergence in wildlife Rabies, a deadly disease for humans, is increasingly being detected in various wildlife species, including marmosets found in Brazilian forests and urban areas. Marmosets, often captured as pets and later abandoned, have been implicated in human rabies cases. This emergence is a pressing public health [...]ver notícia -
Rabies virus variants from marmosets are found in bats
Publicado em 16 novembro 2023Newswise — Rabies virus variants closely related to variants present in White-tufted marmosets ( Callithrix jacchus ) have been detected in bats in Ceará state, Northeast Brazil. Rabies is a deadly disease for humans. Its emergence in distinct wildlife species is a potential source of human infection and hence a public health concern. Marmosets are common in forests and conservation units throughout Brazil. In or near urban areas, they are often captured as pets and [...]ver notícia -
Amazon's rainforests are at risk of transforming into dry, grassy savannas
Publicado em 29 agosto 2023In a potentially alarming revelation for our planet’s climate, a new study led by Rutgers University suggests that vast swaths of the Amazonian lowland rainforest could gradually transform into dry, grassy savannas. These lowland regions of the Amazon play a pivotal role in absorbing carbon dioxide, thereby serving as natural buffers against the escalating threats of climate change. Published in the esteemed scientific journal Proceedings of the National Academy of Sciences, [...]ver notícia -
Obstructive sleep apnea speeds up aging on a cellular level
Publicado em 24 agosto 2023In the realm of sleep disorders, obstructive sleep apnea (OSA) stands out with its repeated episodes of halted breathing during sleep, sometimes extending for several minutes. As sleepers experience these episodes, they subsequently wake up abruptly, gasping for breath. Beyond its immediate effects, obstructive sleep apnea brings with it a plethora of symptoms including fatigue, excessive daytime sleepiness, and a striking lack of concentration. These symptoms are [...]ver notícia -
Amazon dark earth could revolutionize forest restoration
Publicado em 01 agosto 2023This study, published in the journal Frontiers in Soil Science, introduces a promising avenue for sustainable biotech applications designed to combat land degradation. The research was conducted as part of FAPESP ‘s Biodiversity, Characterization, Conservation, Restoration, and Sustainable Use Program (BIOTA). Focus of thr study The researchers embarked on an in-depth exploration of Amazon dark earth, a soil type known for its nutrient richness and bustling community of [...]ver notícia -
Brazilian coast has warmed significantly and experiences many extreme temperature events
Publicado em 18 julho 2023Climate change is striking with a vengeance along the Brazilian coastline, particularly in the South and Southeast regions, resulting in extreme temperature events. The escalating severity of surface air temperatures and erratic switches from blistering heat to chilling cold are tangible evidence of this shift, as detailed in a recent study published in the journal Scientific Reports. A marked upswing in temperature extremes and heatwaves (defined as multiple consecutive [...]ver notícia -
Brazilian Amazon crisis: Deforestation is escalating in Indigenous Territories
Publicado em 03 julho 2023The data was revealed in a study led by a Brazilian team of experts and published in the journal Scientific Reports. The shocking trend is not subtle. The last three years of the study period alone (2019-2021) have accounted for almost 60% of this emission, which can be attributed to the rapid acceleration of forest destruction. Emissions from ITs on the rise The researchers found that from 2013 to 2021, a total of 1,708 square kilometers (km²) were deforested in ITs, a figure that [...]ver notícia