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The key to growing coffee plants that can better resist climate change in the decades to come may lie in the ancient past. Researchers co-led by the University at Buffalo have created what they say is the highest quality reference genome to date of the world's most popular coffee species, Arabica, unearthing secrets about its lineage that span millennia and continents. Their findings, published in Nature Genetics, suggest that Coffea arabica developed more than 600,000 years [...]

More than 75% of the patients treated at the psychiatric outpatient clinic of Hospital de Base in São José do Rio Preto, São Paulo state (Brazil), are women with a mean age of 45 and suffering from sadness, anxiety, and irritability, according to a study reported in the journal Frontiers in Psychiatry. The findings, which are compatible with data in the Brazilian and global literature, draw attention to the importance of diagnosing and treating mental [...]

A study reported in the journal acta ethologica has recorded the use of ultrasound by amphibians for the first time in South America. It also describes the first documented case of the use of ultrasound for defense against predators, in a distress call of ear-piercing intensity to many animals, but inaudible to humans. "Some potential predators of amphibians, such as bats, rodents and small primates, are able to emit and hear sounds at this frequency, which humans can't. One of our [...]

People who find themselves rummaging around in the refrigerator for a snack not long after they've eaten a filling meal might have overactive food-seeking neurons, not an overactive appetite. UCLA psychologists have discovered a circuit in the brain of mice that makes them crave food and seek it out, even when they are not hungry. When stimulated, this cluster of cells propels mice to forage vigorously and to prefer fatty and pleasurable foods like chocolate over healthier foods like [...]

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 lead to long-term psychiatric [...]

SÃO PAULO, SP (FOLHAPRESS) - De 31 de dezembro de 2023 até o último sábado (9), o Brasil registrou 2.066 mortes por Covid, uma média de 30 óbitos por dia. Os dados são da Plataforma Coronavírus do Ministério da Saúde analisados pela plataforma SP Covid-19 InfoTracker, criada por pesquisadores da USP e da Unesp para acompanhar a evolução da pandemia. Os números, no entanto, ainda são menores [...]

Dengue (pronounced DEN-gay), a mosquito-borne illness that has circulated to a limited degree for centuries, is now spreading with unprecedented speed around the world. It’s a worrying example of how a changing climate and 21st-century demographic trends can quickly turn a public health nuisance into a daunting global health crisis. In 2000, there were about 500,000 reported dengue cases and 19,685 recorded dengue deaths around the world; by 2019, [...]

Hydrogen (H2) is considered a possible alternative to fossil fuels, which are responsible for a large proportion of atmospheric emissions and global warming, but production costs must be lowered if it is to become a viable option. In an article published in the journal Electrochimica Acta, scientists at the Center for Development of Functional Materials (CDMF), a Research, Innovation and Dissemination Center (RIDC) hosted at the Federal University of São Carlos (UFSCar) in São [...]

Levofloxacin is a commonly used antibiotic that is prescribed to treat a variety of illnesses, including urinary tract infections, skin disorders, bacterial prostatitis, pneumonia, pyelonephritis, and infections of the rhinosinusitis and skin structure. The drug degrades slowly in wastewater treatment plants and it is often found in aqueous environments and is regarded as an emerging pollutant. Related Stories Levofloxacin is highly toxic and may have endocrine-disrupting effects; its [...]