Not exact matches
These
researchers favor a theory
known as modified Newtonian dynamics, or MOND (SN: 3/31/07, p. 206), which adjusts the rules of gravity to make sense of stars» motions, without requiring any new, elusive
particles.
A new
particle, announced by an international team of
researchers in June, calls into question what we
know about the composition of matter.
Now
researchers led by Franz Pröbst and Jens Schmaler of the Max Planck Institute for Physics in Munich, Germany, say the experiment detected around 20 collisions between June 2009 and last April that may not have been caused by
known particles.
Confirmation of the fourth neutrino would have given
researchers a sign that something was wrong with their highly successful Standard Model, which describes the
known particles.
No one
knows for certain what the fibrils are — whether they are the agents of the disease, a type of subviral
particle, as some
researchers suggest, or are a product of the disease.
In further tests,
researchers stimulated sensitive long hairs on the spider's legs and body — previously
known to pick up near - field airflow and vibrations — which generated a response in the same neurons that fired after hearing distant sounds, providing evidence the hairs are likely detecting nanoscale air
particles that become excited from a sound wave.
However, these instruments are not readily available in the developing world, so the
researchers adapted the
particles so they could be analyzed on paper, using an approach
known as a lateral flow assay — the same technology used in pregnancy tests.
For instance,
researchers often use so - called «gene guns» to fire
particles coated with strands of DNA
known as plasmids at large populations of cells.
To create that trigger, the
researchers followed a process
known as molecular evolution to develop an antibody that could be attached to the hydrogel
particles to change their form when they encounter thrombin - activated fibrin.
The feat showed that the
particles of light can retain a strange type of interconnectedness,
known as quantum entanglement, even when flung to opposite ends of a country,
researchers from China report in the June 16 Science.
The
particles flow along the entire cantilever in about 100 milliseconds, so a key advance that allowed the
researchers to take rapid measurements at each point along the channel was the incorporation of a control system
known as a phase - locked loop (PLL).
Now that superparamagnetism is
no longer restricted to minute
particles that are difficult to handle,
researchers can start exploring in which ways this can contribute to improving our lives.
The
researchers applied a model
known as a totally asymmetric simple exclusion process, commonly used to study interacting
particles in physical, chemical and biological systems.
The
researchers knew that this analysis could be influenced by another well -
known phenomenon, the production of
particle jets.
That's been a struggle: It took more than 70 years for
researchers to coax frigid bosons — which, along with fermions, are the basic
particles that comprise all
known visible matter in the universe — into an arrangement dubbed a Bose - Einstein condensate, named for physicists Albert Einstein and Satyendra Nath Bose who predicted it in 1924.
The
researchers theorize that the
particle exists in a material
known as tungsten ditelluride (WTe2), which the
researchers liken to a «material universe» because it contains several
particles, some of which exist under normal conditions in our universe and others that may exist only in these specialized types of crystals.
Join us in a discussion with leading
researchers who smash together
particles, dive into underground mines, and explore the edges of the
known universe in search of clues to nature's dark side.
The
researchers programmed powerful arrays
known as neural networks to serve as a sort of hivelike digital brain in analyzing and interpreting the images of the simulated
particle debris left over from the collisions.
The
researchers, who include Alessandro Bruno of the University of Bari in Italy and the INFN in Bari, focused on a region
known as the South Atlantic Anomaly, where Earth's inner Van Allen radiation belt comes closest to the planet's surface and the density of
particles encountered by the craft would likely be the highest.
For the past few decades,
researchers have essentially
known what nuclei are like, and the GANIL team certainly wasn't looking to upset the status quo by finding
particles that couldn't exist.
The
researchers also found much higher levels of polycyclic aromatic hydrocarbons, which are
known mutagens, in
particles at the polluted site, making these chemicals a leading suspect.Similar mutations have been reported in people exposed to radiation.
Knowing that such an extraordinary claim would need to be backed up, the
researchers devised a thought experiment to demonstrate the simplest case in which a cosmic correlation between two
particles would be obvious and testable.
The
particle,
known as the Majorana fermion, is prized by
researchers for its potential to open the doors to new quantum computing possibilities.
To calculate the amount of fuel inside Earth by 2025, the
researchers will rely on detecting some of the tiniest subatomic
particles known to science — geoneutrinos.
Researchers don't yet
know if the
particles would affect weather (like rainfall) or how living things grow.
Researchers have long
known that cosmic rays crashing into Earth's atmosphere create a spray of secondary
particles such as neutrons, protons, electrons, X-rays and gamma - rays that penetrate aircraft.
Although HIV
researchers knew that intracellular transmission of the virus is a 100 - to 1,000 - times more - efficient means of infection than exposure to free
particles called virions, Greene and his colleagues have now shown that cell - to - cell transmission is also more likely to lead to CD4 + T cell death.
Researchers who make and study plasmonic
particles generally want to
know and control their reactivity, so it is crucial to be able to study many individual
particles simultaneously with the best resolution of time, space and energy possible.
As part of that calculation,
researchers have relied on simplifying assumptions when accounting for the temperature impacts of climate drivers other than carbon dioxide, such as tiny
particles in the atmosphere
known as aerosols, for example.»