País

• Home
• país
• Austrália

The Amazon rainforest's carbon emissions doubled in 2019 and 2020, as a decline in environmental policing under Brazilian ex-president Jair Bolsonaro led to a surge in destruction of the increasingly fragile region, researchers reported Wednesday. The world's biggest rainforest is a vital buffer against climate change, but studies show it has started emitting more carbon than it absorbs, pushed to a dangerous "tipping point" by deforestation and fires -- mainly for cattle [...]

A study conducted by researchers affiliated with the University of São Paulo (USP) in Brazil concluded that particles of glitter can hinder the growth of organisms at the base of aquatic ecosystems, such as cyanobacteria (blue-green algae), which play a key role in the biogeochemical cycles of water and soil, as well as being eaten by other organisms. An article on the study is published in the journal Aquatic Toxicology. Ubiquitous in makeup, nail polish, holiday [...]

A new study has found that glitter can negatively affect the growth of cyanobacteria, commonly called ‘blue-green algae,' an important player in aquatic ecosystems and a key component of marine food webs. The researchers say their study highlights the importance of reining in the use of this stealthy microplastic. Despite its association with fun things – makeup and nail polish, party costumes, greeting cards and holiday decorations – glitter is a problem. Not only is [...]

Our immune system is made up of multiple smart defenses built into our bodies – but if those defenses go haywire, it can lead to diseases such as multiple sclerosis (MS). Scientists may have found a new way to control potentially dangerous autoimmune responses. A team from Harvard Medical School at Brigham and Women's Hospital in the US developed a special probiotic that was able to regulate the activity of dendritic cells. These cells play a crucial role in managing immune cell [...]

In recent decades, scientists have sought solutions to improve the sustainable production of biofuels from renewable sources. The latest advance in this field was announced at the end of May by Brazilian researchers and could boost the production of sustainable biofuels for aviation and maritime shipping. "After three and a half years of research, we identified an enzyme that can replace the traditional catalysts used in thermochemical routes for the production of aviation [...]

Diagnosing autism spectrum disorder (ASD) is still a daunting challenge because of the degree of complexity involved, requiring highly specialized professionals. Autism is a multifactorial neurodevelopment disorder with widely varying symptoms. In the United States, about 1 in 36 children have been diagnosed with ASD, according to the Centers for Disease Control and Prevention (CDC), and yet there are no biochemical markers to identify it with precision. A quantitative diagnostic method is [...]

Diagnosing autism spectrum disorder (ASD) is still a daunting challenge because of the degree of complexity involved, requiring highly specialized professionals. Autism is a multifactorial neurodevelopment disorder with widely varying symptoms. In the United States, about 1 in 36 children have been diagnosed with ASD, according to the Centers for Disease Control and Prevention (CDC), and yet there are no biochemical markers to identify it with precision. A quantitative diagnostic method is [...]

Washington:  A study has found that artificial intelligence can diagnose autism spectrum disorder. The study was published in the journal, ‘Scientific Reports’. Diagnosing autism spectrum disorder (ASD) is still a daunting challenge because of the degree of complexity involved, requiring highly specialized professionals. Autism is a multifactorial neurodevelopment disorder with widely varying symptoms. The study was based on brain imaging data for 500 people, about [...]

  At a glance: By BRIGHAM AND WOMEN'S COMMUNICATIONS Engineered probiotic bacteria suppressed autoimmunity in the brains of mice with a condition similar to MS. The engineered bacteria release a substance to modulate the activity of dendritic cells, which rein in the activity of other immune cells to prevent autoimmunity. The researchers say that if affirmed in future studies, the approach could be adapted to treat an array of autoimmune [...]