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The Brazilian Atlantic Rainforest is filled with the ear-piercing 'screams' of a tiny amphibian in distress, but until now, we humans have been oblivious to their cries. For the first time, researchers have recorded South American frogs crying out at a frequency that totally bypasses the human ear – but which would be quite unpleasant to animals with the right kind of receivers. The leaf litter frog (Haddadus binotatus) is the most abundant species of frog in the forest [...]

Although their primary purpose is to look for exoplanets, observatories like the Kepler Space Telescope and the Transiting Exoplanet Survey Satellite (TESS) have supplied a vast amount of data on stellar flares, detected with high-precision photometry by broadband filters in the visible light spectrum. The stars are so far away that they appear only as points of light to these telescopes, and the phenomena interpreted as stellar flares are abrupt increases in the brightness of [...]

BUFFALO, N.Y. — 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 today in Nature Genetics, suggest that Coffea arabica developed [...]

The idea that the Universe is expanding dates from almost a century ago. It was first put forward by Belgian cosmologist Georges Lemaître (1894-1966) in 1927 and confirmed observationally by American astronomer Edwin Hubble (1889-1953) two years later. Hubble observed that the redshift in the electromagnetic spectrum of the light received from celestial objects was directly proportional to their distance from Earth, which meant that bodies farther away from Earth were moving away faster [...]

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 [...]

Weight training can help reduce body fat and increase muscle strength and mass in older people, contributing to functional autonomy and avoidance of falls and injury. Furthermore, recent studies have shown that it can also benefit the mental health of older people, especially those who suffer from anxiety and depression. These benefits were confirmed by a study reported in the journal Psychiatry Research. The study involved a systematic review and meta-analysis of more [...]

Weight training can help reduce body fat and increase muscle strength and mass in older people, contributing to functional autonomy and avoidance of Fundação de Amparo à Pesquisa do Estado de São Paulo Weight training can help reduce body fat and increase muscle strength and mass in older people, contributing to functional autonomy and avoidance of falls and injury. Furthermore, recent studies have shown that it can also benefit the mental health of older people, [...]

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 disorders, and can help [...]

Just as in Brazil drivers can be warned of traffic congestion ahead or a vehicle parked on the hard shoulder, notifications may soon pop up on their smartphone or on their car's computer screen to warn them in real time that an anteater, wolf or tapir is crossing the highway. No human will necessarily need to see the animal in question or press a control button to send the warning. For this to be possible, a key step is construction of a computer vision model that automatically detects [...]