In addition to regulating blood sugar levels, insulin plays a critical role in modulating the activity of neurons involved in learning and memory, according to a new work published in the journal Neuron. "People often think that insulin regulation disorders simply cause diabetes, but many cognitive and behavioral defects, such as depression or dementia, are also associated with metabolic syndromes," says Yun Zhang, a biologist at Harvard University. and responsible for the study.
A Danish study based on a storm that fell in May 2009 reveals that rain-laden clouds are also teeming with bacteria and chemicals, specifically up to 3,000 different compounds commonly found in the ground.
The black kites (Milvus migrans) that place the most amount of white plastic in their nests are also the ones that best keep their territory safe and avoid intruders, as well as those that more than
For the eighth year in a row, Olympus America Inc. has organized the Olympus Bioscapes International Digital Imaging Competition. These are some of the winners in the edition &
The fire ant (Solenopsis invicta), nicknamed "the invincible", is famous for its painful sting and for causing invasive pests in countries such as China and Australia. Their societies are characterized by the fact that some have hundreds of queens and others only one strictly. Now an investigation, led by the University of London, has analyzed the genome of more than 500 of these insects and, according to their conclusions, the multiplicity or not of queens in this species is determined by the Gp-9 gene, considered a "supergene "being actually made up of more than 600 genes.
Researcher Barry Tomlinson and his colleagues at the University of Leeds are convinced that since palm trees are the longest-living plants, they could help us understand what longevity depends on, according to the American Journal of Botany. In their article, the researchers state that the life expectancy of an organism is determined, to a large extent, by the period of time in which its cells remain metabolically active.
The new species that are collected by scientists take more than twenty years on average to be described, time that they usually spend on museum shelves, as indicated by a study published this week in the journal Current Biology. Researchers have called this period "shelf life," and the fact that it is so long is for several reasons.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
