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Solar flares are extremely intense events that occur in the Sun's atmosphere, lasting anywhere from a few minutes to several hours. According to the standard flare model, the energy that triggers these explosions is transported by accelerated electrons that hurtle from the magnetic reconnection region in the corona to the chromosphere. As the electrons collide with the chromospheric plasma, they deposit their energy in the plasma, which is heated and ionized as a result. They also cause [...]

High levels of carbon dioxide (CO2) in the atmosphere can alter not only the climate of our planet but also the functioning of our cells. The gas interacts with hydrogen peroxide (H2O2), which performs various functions in the human body, giving rise to a potent oxidant called peroxymonocarbonate. "More and more evidence is emerging that peroxymonocarbonate is important in both cells' adaptive responses via redox signaling and in cellular dysfunction. There is also epidemiological [...]

塑料制品是世紀發明﹐深入地球的每一寸土地與海洋﹐連你的腦袋裡也有塑料微粒。 CNBC報導﹐近年研究顯示﹐塑料微粒存在于人體幾乎所有器官､血液和動脈。科學家最關心的是﹐這些污染物是否能到達人腦。巴西科學家在尸體的腦組織中﹐發現了塑料微粒﹐該研究發表于《JAMANetwork Open》期刊。 最新的研究關注位于大腦中處理嗅覺資訊的部位﹐嗅球（olfactory [...]

In an article published in JAMA Network Open, researchers at the University of São Paulo's Medical School (FM-USP) report on a study involving 774 men and women who followed a vegan diet in Brazil. Their findings show that on average the participants consumed the recommended amount of proteins and essential amino acids, and that their diet consisted largely of unprocessed and minimally processed foods. However, participants who consumed proportionally lower levels of [...]

Brazilian Legal Amazonia (BLA) – which comprises the entirety of the Amazon Basin located in Brazil and vast adjacent swathes of the Cerrado, spanning nine states – is more than 5 million square kilometers (km2) in area and corresponds to almost 60% of the country's land mass. Almost a quarter of this area (23%) has been deforested, and over 1 million km2 are degraded, so that the region risks reaching an ecological tipping point at which ecosystems collapse and billions of tons [...]

Our microplastics problem isn't going away. These tiny fragments of plastic pollution have previously shown up in our lungs, in ancient rocks, and in bottled water. A new study reveals the extent to which they're infiltrating the brain, too. An international team of scientists looked at the olfactory bulbs – the masses of brain tissue that take in smell information from the nose – in 15 deceased humans, and found the presence of microplastics in 8 of them. Researchers [...]

In an article published in JAMA Network Open, researchers at the University of São Paulo's Medical School (FM-USP) report on a study involving 774 men and women who followed a vegan diet in Brazil. Their findings show that on average the participants consumed the recommended amount of proteins and essential amino acids, and that their diet consisted largely of unprocessed and minimally processed foods. However, participants who consumed proportionally lower levels of [...]

Spread the love LONDON – A study published in JAMA Network Open has revealed microplastics in the human brain, with disturbing implications for textiles and fashion. The study, led by Luís Fernando Amato-Lourenço and a team of researchers, uncovered microplastics in the olfactory bulbs of human brains, marking the first time such particles have been detected in this region of the body. The findings were based on autopsies conducted on 15 deceased individuals in [...]

With 84 species currently described, Characidium may be the most diverse fish genus known to science. This is the conclusion reached by Brazilian scientists after analyzing more than 4,400 specimens of this genus of South American darters endemic to the Neotropical region and known in Brazil as mocinha or charutinho. In an article published in the journal Systematics and Biodiversity, researchers affiliated with São Paulo State University (UNESP) and the Federal University [...]