Scientists report an imaging technique that gives finer details of blood vessels in live patients in real time than current diagnostic machines used in the clinic. The technique depends on capturing and analyzing non-epipolar light, which carries scattering information useful for detailing objects under the skin's surface.
Read moreResearchers have put a new spin on measuring and controlling spins in nickel oxide, with an eye toward improving electronic devices' speed and memory capacity.
Read moreTo understand the fundamental nature of our universe, scientists would like to build particle colliders that accelerate electrons and their antimatter counterparts (positrons) to extreme energies (up to tera electron volts, or TeV). With conventional technology, however, this requires a machine that is enormously big and expensive (think 20 miles long). To shrink the size and cost of these machines, the acceleration of the particles — how much energy they gain in a given distance — must be increased.
Read moreFusion is a non-carbon-based process for energy production, where lighter atoms fuse into heavier ones. Fusion reactors operate by confining a 'soup' of charged particles, known as a plasma, within powerful magnetic fields. But these magnetic fields must contain the plasma long enough that it can be heated to extreme temperatures — hotter than the sun — where fusion reactions can occur.
Read morePluripotent stem cells can be used to make experimental models of organ systems, but current techniques often produce models that bear limited resemblance to true organs. Researchers developed an improved method to make a sophisticated three-dimensional organoid model of the liver, pancreas, and bile ducts. The model may help researchers understand how these organs form and how genetic mutations can lead to diseases in these organs.
Read morePhysicists have developed a fast and sensitive mechanical tool to measure light. The graphene nanomechanical bolometer is the fastest and most sensitive in its class. It is poised to detect nearly every color of light at high speeds and obtain measurements at and far above room-temperature.
Read moreUltrashort laser pulses have enabled scientists and physicians to carry out high-precision material analyses and medical procedures. Physicists have now discovered a new method for adjusting the extremely short time intervals between laser flashes with exceptional speed and precision. The intervals can be increased or decreased as needed, all at the push of a button. Potential applications range from laser spectroscopy to microscopy and materials processing.
Read moreA new article compares cancer detection rates (CDR) for screening digital breast tomosynthesis (DBT) versus full-field digital mammography (FFDM). Researchers found that DBT results in 'significantly increased CDR' — irrespective of tumor type, size, or grade of cancer.
Read moreResearchers have developed a model that recovers valuable data lost from images and video that have been 'collapsed' into lower dimensions.
Read moreResearchers have developed an affordable, reliable paper-based sensor that works with a cellphone app to detect levels of iron in fortified food products.
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