To learn more about its origins, Lindy McBride at Princeton University and her colleagues analysed the DNA of 790 mosquitoes from 44 countries around the world, including the molestus and pipiens forms as well as some closely related species.
In the dorsal raphe nucleus – a part of the brainstem linked to functions including eating, mood and sleep – they came across cells that produce a hormone called cholecystokinin, which helps regulate appetite.
It is published by the Society for Science, a nonprofit 501(c)(3) membership organization dedicated to public engagement in scientific research and education (EIN 53-0196483).
Researchers have been capturing cosmic rays with different detectors for more than a century because their changing properties could serve as records of the solar system’s history, says Jamie Rankin at Princeton University.
“The core point of the study is they don’t use hard-core gene engineering or editing technologies or transgenic approaches,” says le Coutre.
In 2024, the drug company Vertex Pharmaceuticals reported that Journavx reduced pain compared with a placebo in people who had abdominal or foot surgery, although the effect was modest.
In the world, our seasons are driven by our earth’s 23.4-degree tilt; for instance, northern summertime happens when our earth’s north hemisphere is tilted towards the sunlight. No matter the tilt of HD 20794d, its seasons are rather identified by just how much it has proceeded along its eccentric orbit. It is an exceptional planet....
Nikita Gourianov at the University of Oxford and his colleagues have now developed a new approach that uses quantum computer-inspired algorithms called tensor networks to represent turbulence probability distributions.
"This work highlights the transformative potential of observing the black hole environment evolving over time," study co-author Hung-Yi Pu, an assistant professor at National Taiwan Normal University, said in the statement.
In one fish species, Nile tilapia, that behavioral — or sought-out — fever triggers the adaptive immune system, known for its acquired memory of specific bodily invaders, researchers report in the Dec. 24 Proceedings of the National Academy of Sciences.
Mountains of research over the past decade demonstrate, time and again, that a decent night’s rest is essential for everything from cognitive function to heart health, mood and more.
A trove of engraved stones unearthed from ritual gathering sites on Bornholm, an island in Denmark, display motifs that most commonly represent the sun and croplike plants.
