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Sep 6, 2023
What to look for in an AI scribe tool
Posted by Shubham Ghosh Roy in category: robotics/AI
The right product can reduce staff and clinician burnout, but it needs to include a human element.
Sep 6, 2023
AI builds momentum for smarter health care
Posted by Shubham Ghosh Roy in categories: biotech/medical, business, health, robotics/AI
The pharmaceutical industry operates under one of the highest failure rates of any business sector. The success rate for drug candidates entering capital Phase 1 trials—the earliest type of clinical testing, which can take 6 to 7 years —is anywhere between 9% and 12%, depending on the year, with costs to bring a drug from discovery to market ranging from $1.5 billion to $2.5 billion, according to Science.
Sep 6, 2023
Neutrino Mass in the Crosshairs
Posted by Saúl Morales Rodriguéz in category: particle physics
The first frequency-based limit on the neutrino’s mass sets the stage for next-generation experiments.
Sep 6, 2023
How Tightly Bound Are Hypertritons?
Posted by Saúl Morales Rodriguéz in categories: particle physics, space
The Large Hadron Collider (LHC) is best known for the 2012 discovery of the Higgs boson, which was made by smashing together high-energy protons (see Collection: The History of Observations of the Higgs Boson). But protons are not the only particles accelerated by the collider, and some studies call for colliding much heavier objects. Now a team working on the LHC’s ALICE experiment has collided lead nuclei to study an exotic particle called a hypertriton [1]. The result could help researchers reduce errors in models of the structure of neutron stars.
A hypertriton is a tritium nucleus in which one neutron has been replaced with a lambda hyperon, a heavier particle with a quark configuration of up-down-strange rather than up-down-down. Researchers have long known the energy it takes to bind tritium’s proton and two neutrons. But it was unclear how that energy changed with the neutron–lambda hyperon switch.
The ALICE Collaboration turned to lead–lead collisions to answer this question because these collisions produce hypertritons in much greater numbers than proton–proton ones do. A hypertriton quickly decays into a helium-3 nucleus and a pion, with the decay time and the energy of the decay products depending on the binding energy between the lambda hyperon and the hypertriton core.
Sep 6, 2023
Active Particles Push the Boundaries of Two-Dimensional Solids
Posted by Saúl Morales Rodriguéz in categories: particle physics, transportation
Active particles can form two-dimensional solids that are different from those formed by nonmotile particles, showing long-range crystalline order accompanied by giant spontaneous deformations.
If you compress a liquid slowly enough at low temperatures, it will freeze into an ordered solid: a crystal. Or at least that’s what we’re used to seeing in three dimensions. If you instead consider particles confined to a two-dimensional (2D) plane, the outcome is quite different. For equilibrium systems, a 2D solid stabilizes into a structure that lacks long-range order—it becomes less ordered further away from a central lattice site. The behavior of systems far from equilibrium, such as self-propelled particles, remains, however, an open question. In a numerical study of bacteria-like particles, Xia-qing Shi of Soochow University in China and his colleagues now show that active crystals follow a slightly different set of rules than their nonmotile counterparts [1]. Like 2D equilibrium crystals, 2D active systems stabilize into an ordered solid-like phase but with extremely large particle fluctuations around the configuration of a perfect crystal lattice.
Sep 6, 2023
The discovery of a new kind of cell shakes up neuroscience
Posted by Saúl Morales Rodriguéz in category: neuroscience
A research team from University of Lausanne (UNIL) and the Wyss Center, has discovered a new type of cell essential for brain function. Hybrid in composition and function, in between the two types of brain cells known so far—the neurons and the glial cells—these cells of a new order are present in several brain regions in mice and humans.
The study published in the journal Nature shows that these cells promote the ability to memorize, the brain control of movements, and contrast the insurgence of epileptic seizures.
Neuroscience is in great upheaval. The two major families of cells that make up the brain, neurons and glial cells, secretly hid a hybrid cell, halfway between these two categories. For as long as neuroscience has existed, it has been recognized that the brain works primarily thanks to the neurons and their ability to rapidly elaborate and transmit information through their networks.
Sep 6, 2023
Scientists demonstrate new, improved way to make infrared light, with quantum dots
Posted by Saúl Morales Rodriguéz in categories: electronics, quantum physics
Scientists with the University of Chicago have demonstrated a way to create infrared light using colloidal quantum dots. The researchers said the method demonstrates great promise; the dots are already as efficient as existing conventional methods, even though the experiments are still in early stages.
The dots could someday form the basis of infrared lasers as well as small and cost-effective sensors, such as those used in exhaust emissions tests or breathalyzers.
“Right now the performance for these dots is close to existing commercial infrared light sources, and we have reason to believe we could significantly improve that,” said Philippe Guyot-Sionnest, a professor of physics and chemistry at the University of Chicago, member of the James Frank Institute, and one of three authors on the paper published in Nature Photonics. “We’re very excited for the possibilities.”
Sep 6, 2023
Researchers issue warning over Chrome extensions that access private data
Posted by Saúl Morales Rodriguéz in category: finance
Google Chrome browser extensions expose users to hackers who can easily tap into their private data, including social security numbers, passwords and banking information, according to researchers at the University of Wisconsin-Madison (UW-M).
The researchers further uncovered vulnerabilities involving passwords that are stored in plain text within HTML source code on web sites of some of the world’s largest corporate giants, including Google, Amazon, Citibank, Capital One and the Internal Revenue Service.
The problem stems from the manner in which extensions access internal web page code.
Sep 6, 2023
Two world’s biggest telescopes hacked by Ransomware attack
Posted by Saúl Morales Rodriguéz in categories: cybercrime/malcode, space
Several telescopes are still down weeks after a cybersecurity attack was discovered by US National Science Foundation (NSF) researchers. There is presently no information available on when the Gemini North telescope in Hawaii and the Gemini South telescope in Chile will resume operations. A number of smaller telescopes on the slopes of Cerro Tololo in Chile were also shut down “out of an abundance of caution”.
The IT team at the National Science Foundation’s NOIRLab discovered suspicious behavior in the laboratory’s computer systems early on the morning of August 1. This led to the decision to temporarily halt activities at the huge optical infrared telescopes located on Hawaii’s Maunakea for the sake of safety.
The ‘double’ telescope located in the southern Andes of Chile was already in the process of being prepped for maintenance and required very little more work.