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Why the Psychopathic Brain Struggles With Emotion and Control
At its core, psychopathy is not simply a matter of bad choices or poor upbringing — growing evidence suggests it has a biological foundation, shaped by the intricate wiring of the human brain.
Now, a new study offers fresh insights into how structural brain connectivity patterns are linked to psychopathic traits and the externalizing behaviors that often accompany them.
Suppressing tumor cell stemness might help colon cancer management
Colon cancer remains a major global health concern, ranking third among the most diagnosed cancers and the leading cause of cancer-related death worldwide. One critical factor that makes treating colon cancer challenging is the presence of cancer stem cells.
Though typically present in small populations, these powerful cells drive tumor growth, resist standard treatments, and often contribute to relapse. They achieve this through their “stemness,” a set of properties that enable these cells to self-renew and differentiate into other cell types. Thus, understanding how stemness might be controlled at the molecular level is essential for developing effective therapies for colon cancer.
Over the past two decades, researchers have identified several key molecules involved in both the development of the colon and the progression of colon cancer. Among them are CDX1 and CDX2, two homeobox transcription factors that help establish and maintain the identity of intestinal epithelial cells.
Antarctic isolation causes temporary gray matter loss with lingering thalamic changes
Brain researchers at the University of Pennsylvania have detailed temporary reductions in gray matter following prolonged isolation in Antarctica. Structural losses were most apparent in regions governing memory and spatial processing. Longer sleep durations and higher sleep efficiency corresponded with smaller changes in brain volume.
Findings may have implications for how astronauts’ brains adapt under the psychological and environmental pressures of deep space missions, where prolonged isolation, limited movement, and disrupted sleep are inherent to the experience.
Chronic stress alters the brain. Not through a single trauma, but through sustained environmental pressures of extreme temperatures, social confinement, monotony, hypoxia, and irregular sleep. Such conditions converge in spaceflight, where astronauts endure prolonged exposure to isolated, confined, and extreme (ICE) environments.
What The Last Century Of Cybersecurity Can Teach Us About What Comes Next In The Age Of AI
Now, with the introduction of AI systems trained on years of real-world data, many of those tasks can be automated at scale—in most cases, with greater speed and consistency than a human working alone. The business impact is immediate and measurable.
To use AI effectively in frontline defense, it must do more than process data. It has to understand how your organization assesses risk and learn to make decisions that protect both security and business continuity. We’re seeing that this is especially valuable for clients with high customer activity, where security teams are flooded with alerts that demand fast, accurate decisions to maintain service levels.
New scrubbing robot could contribute to automation of household chores
While the advent of robotic systems that can complete household chores has been widely anticipated, those commercially released so far are primarily robot vacuums that autonomously clean the floor. In contrast, robots that can reliably clean surfaces, tidy up, cook or perform other tasks in home environments are either too expensive or have not yet reached the market.
Researchers at Northeastern University recently developed SCCRUB, a soft robotic arm that can complete a chore beyond hoovering and mopping, which many people find tedious, namely scrubbing surfaces clean. The new robotic arm, introduced in a paper on the arXiv preprint server, was found to successfully clean dirty, burnt and greasy surfaces, removing over 99.% of residue adhered to them.
“Our recent study builds on one of our earlier papers published in Science Robotics,” Jeffrey Lipton, senior author of the paper, told Tech Xplore. “We knew we had a new type of robot arm that could deliver the power of a drill through a soft robotic arm. We wanted to show what else we could do with this new platform.”