Traumatic and stressful events in childhood can affect the brain into adulthood, scientists have shown, identifying for the first time specific alterations to key brain structures in the amygdala and the hippocampus.
Astronomers using a new technique may have not only found a super-Earth at a neighbouring star, but they may also have directly imaged it. And it could be nice and cozy in the habitable zone around Alpha Centauri.
All governments across the globe are the same they don’t want a free flow of information that would challenge their authority and decisions that they think are good for us, maybe because they want to maintain law and order in society.
I am against the control of social media by the government and I am also against the algorithms which are designed to make people addicted to social media by showing the thing that appeals most to them for profit.
What are your opinions on this topic, how we can achieve the balance between these challenging aspects of social media use?
In case you missed it at Davos, Ursula von der Leyen’s call for safer social media. 📕.
Welcome back to the Daily Aviation for a new documentary video about the DARPA/USMC Ultra Heavy-Lift Amphibious Connector (UHAC) based on the Captive Air Amphibious Transporter (CAAT) project. This video also feature the US Landing Craft Air Cushion (LCAC) and compares it to the UHAC project.
Footage credit: US marine, derivative work by the daily aviation.
Thumbnail credit: US marine, derivative work by the daily aviation.
Voice, text and video editing belong to The Daily Aviation, any use of these content without permission is forbidden.
Previous studies have shown that AgRP neurons in the arcuate nucleus (ARC) respond to energy deficits and play a key role in the control of feeding behavior and metabolism. Here, we demonstrate that chronic unpredictable stress, an animal model of depression, decreases spontaneous firing rates, increases firing irregularity and alters the firing properties of AgRP neurons in both male and female mice. These changes are associated with enhanced inhibitory synaptic transmission and reduced intrinsic neuronal excitability. Chemogenetic inhibition of AgRP neurons increases susceptibility to subthreshold unpredictable stress. Conversely, chemogenetic activation of AgRP neurons completely reverses anhedonic and despair behaviors induced by chronic unpredictable stress.
Perseverance: Countdown to Impact
Posted in space
About this partnership.
The Mars Perseverance Rover is in its final flight stages, heading for its historic rendezvous with the red planet. First up — a harrowing landing, scheduled for February 18th…Don’t miss it!
Learn more with Perseverance: Countdown to Impact now available on CuriosityStream.
Perseverance will scour mud and clay in Jezero’s river delta and shorelines for signs of microbe communities.
OEC promoting AI in Africa.
Ranjan KC
Artificial intelligence (AI) is learning more about how to work with (and on) humans. A recent study has shown how AI can learn to identify vulnerabilities in human habits and behaviours and use them to influence human decision-making.
Plastic decomposition is sped up by the flash Joule heating method.
The smart fabric is light, breathable, and can change how first-responders deal with sarin.
Max G. Levy, Science and Health Journalism.
It’s a fundamental law of physics that even the most ardent science-phobe can define: matter falls down under gravity. But what about antimatter, which has the same mass but opposite electrical charge and spin? According to Einstein’s general theory of relativity, gravity should treat matter and antimatter identically. Finding even the slightest difference in their free-fall rate would therefore lead to a revolution in our understanding. While the free fall of matter has been measured with an accuracy of around one part in 100 trillion, no direct measurement for antimatter has yet been performed due to the difficulty in producing and containing large quantities of it.