Matter inside neutron stars can have different forms: a dense liquid of nucleons or a dense liquid of quarks.
Recent studies reveal that in neutron stars, quark liquids are fundamentally different from nucleon liquids, as evidenced by the unique color-magnetic field in their vortices. This finding challenges previous beliefs in quantum chromodynamics and offers new insights into the nature of confinement.
New research reveals a never-before-seen behavior in a repeating Fast Radio Burst, offering fresh insights into these mysterious cosmic phenomena.
Astronomers are continuing to unravel the mystery of deep space signals after discovering a never-before-seen quirk in a newly-detected Fast Radio Burst (FRB).
FRBs are millisecond-long, extremely bright flashes of radio light that generally come from outside our Milky Way galaxy. Most happen only once but some “repeaters” send out follow-up signals, adding to the intrigue surrounding their origin.
People have long noticed that the waters around Cabo Frio are unusually cool.
When European explorers first surveyed the coastline of what is now the state of Rio de Janeiro in the early 1500s, they encountered white sands, turquoise waters, shallow lagoons, and lush green mountains rising from the sea. The waters in one area, however, were unusually cool—so much so that the promontory in southeastern Brazil shown above was named Cabo Frio, Portuguese for “Cape Cold.”
Landsat 9’s OLI-2 (Operational Land Imager-2) captured this image of Cabo Frio’s diverse coastline on September 16, 2023. The map (below) shows that surface waters that day were cooler off of Cabo Frio than in the surrounding waters. The pattern is common: Upwelling of cold water from deeper in the ocean to the surface often chills Cabo Frio’s surface waters by several degrees.
Animals exhibit a diverse behavioral repertoire when exploring new environments and can learn which actions or action sequences produce positive outcomes. Dopamine release upon encountering reward is critical for reinforcing reward-producing actions1 – 3. However, it has been challenging to understand how credit is assigned to the exact action that produced dopamine release during continuous behavior. We investigated this problem with a novel self-stimulation paradigm in which specific spontaneous movements triggered optogenetic stimulation of dopaminergic neurons. Dopamine self-stimulation rapidly and dynamically changes the structure of the entire behavioral repertoire. Initial stimulations reinforced not only the stimulation-producing target action, but also actions similar to target and actions that occurred a few seconds before stimulation. Repeated pairings led to gradual refinement of the behavioral repertoire to home in on the target. Reinforcement of action sequences revealed further temporal dependencies of refinement. Action pairs spontaneously separated by long time intervals promoted a stepwise credit assignment, with early refinement of actions most proximal to stimulation and subsequent refinement of more distal actions. Thus, a retrospective reinforcement mechanism promotes not only reinforcement, but gradual refinement of the entire behavioral repertoire to assign credit to specific actions and action sequences that lead to dopamine release.
F.C. is the Director of Open Ephys Production Site.
Security researchers have detailed a new variant of a dynamic link library (DLL) search order hijacking technique that could be used by threat actors to bypass security mechanisms and achieve execution of malicious code on systems running Microsoft Windows 10 and Windows 11.
The approach “leverages executables commonly found in the trusted WinSxS folder and exploits them via the classic DLL search order hijacking technique,” cybersecurity firm Security Joes said in a new report exclusively shared with The Hacker News.
In doing so, it allows adversaries to eliminate the need for elevated privileges when attempting to run nefarious code on a compromised machine as well as introduce potentially vulnerable binaries into the attack chain, as observedin thepast.
A nice talk. At 18 minutes dude says healthspan is way more important than lifespan. Never mind that large sign behind him that says lifespan. But, not to knock it too much, yes healthspan is important too.
Attractive people had higher-rated communication skills than unattractive people.
“Physical attractiveness raises social and communication skills, which in return raise an employer’s estimate of the worker’s productivity,” researchers Mobius and Rosenblat write. “We assume that the employer is unaware of these biases and hence does not correct for them.”
This has a major impact over the course of a career. Research shows that raising kids’ social skills is a better predictor of lifetime earnings than raising their intellectual ability.
Research on an ancient spiral galaxy reveals crucial insights into early galaxy formation, highlighting rapid star formation and unique structural features compared to contemporary galaxies.
A new snapshot of an ancient, far-off galaxy could help scientists understand how it formed and the origins of our own Milky Way.
At more than 12 billion years old, BRI 1335–0417 is the oldest and furthest known spiral galaxy in the Universe.
A MIT research group has demonstrated the ability to mind-control a 4-legged Boston Robotics Spot. Participants wore a pair of AttentivU smart glasses with built-in electrodes that can mind-read. They were able to tell the robotic dog to fetch items and move about by thoughts alone.