Posted in cosmology, quantum physics | Leave a Comment on Scientists claim to find ‘first observational evidence supporting string theory,’ which could finally reveal the nature of dark energy
Physicists have proposed a new model of space-time that may provide the ‘first observational evidence supporting string theory,’ a new preprint suggests.
What if your mind is shaping the world around you in ways you can’t see… or even imagine?
A research team from the Qingdao Institute of Bioenergy and Bioprocess Technology of the Chinese Academy of Sciences, along with collaborators, has introduced a novel membrane design that mimics biological protein channels to enhance proton transport for efficient energy harvesting. The study was published in the Journal of the American Chemical Society.
Proton transport is fundamental to many biological processes and energy conversion methods. Inspired by the ClC-ec1 antiporter found in Escherichia coli, which facilitates the movement of chloride (Cl-) and protons, the researchers developed a hybrid membrane composed of covalent organic frameworks (COFs) integrated with aramid nanofibers (ANFs).
This ANF/COF composite forms a robust hydrogen-bonding network and features amide groups that selectively bind to Cl- ions, significantly lowering the energy barrier for proton conduction.
Researchers at Cornell Tech have released a dataset extracted from more than 300,000 public Reddit communities, and a report detailing how Reddit communities are changing their policies to address a surge in AI-generated content.
The team collected metadata and community rules from the online communities, known as subreddits, during two periods in July 2023 and November 2024. The researchers will present a paper with their findings at the Association of Computing Machinery’s CHI conference on Human Factors in Computing Systems being held April 26 to May 1 in Yokohama, Japan.
One of the researchers’ most striking discoveries is the rapid increase in subreddits with rules governing AI use. According to the research, the number of subreddits with AI rules more than doubled in 16 months, from July 2023 to November 2024.
Then, around three hours after he had drunk the coconut water, he started to have a fever with sweats and was vomiting. Paramedics came to his house and found him disorientated and pale while unable to balance.
Grace Davidson gave birth to a baby girl two years after her sister’s womb was transplanted into her body.
University of Warwick astronomers have discovered an extremely rare, high-mass, compact binary star system only ~150 light years away. These two stars are on a collision course to explode as a type 1a supernova, appearing 10 times brighter than the moon in the night sky.
Type 1a supernovae are a special class of cosmic explosion, famously used as “standard candles” to measure distances between Earth and their host galaxies. They occur when a white dwarf (the dense remnant core of a star) accumulates too much mass, is unable to withstand its own gravity, and explodes.
It has long been theoretically predicted that two orbiting white dwarfs are the cause of most type 1a supernova explosions. When in a close orbit, the heavier white dwarf of the pair gradually accumulates material from its partner, which leads to that star (or both stars) exploding.
Training the brain’s immune system to recognize and clear toxic material is rapidly emerging as an promising way to put the brakes on Alzheimer’s disease. Unfortunately researchers haven’t been clear on how this method of protection operates on a cellular level.
An international team of researchers analyzed brain samples taken from people who had died with Alzheimer’s, some of whom had also received approved Alzheimer’s immunotherapy treatments. The therapies encourage cleaning cells called microglia to attack the clumps of amyloid-beta proteins that are thought to be involved in neurodegeneration.
Microglia responses to amyloid beta can lead to inflammation, which in turn risks damage to brain tissues. The researchers wanted to know why immunotherapy turned microglia into ruthless cleaning machines in some cases but not others.
