Scientists at Penn State Univ. have developed a method that enables a more accurate prediction of how ribonucleic acid molecules (RNAs) fold within living cells, shedding new light on how plants, as well as other living organisms, respond to environmental conditions. The advance was made possible by the ability to analyze more than 10,000 RNA molecules in a single cell.
Thermo Fisher Scientific has introduced its enhanced Thermo Scientific general-purpose centrifuge line. The centrifuges feature increased capacity and flexibility with rotor innovation including the new Thermo Scientific TX-1000 rotor, which employs a 4-L capacity in a traditional 3-L footprint.
Agilent Technologies Inc. has introduced its 7500 atomic force microscope (AFM), an advanced instrument that achieves atomic resolution imaging with its 90 um AFM closed-loop scanner. The microscope platform is designed to extend the frontier of atomic force microscopy for academia and industry by offering high resolution and precise environmental and temperature control.
With support from the Photosynthetic Systems Div. at the U.S. Dept. of Energy, researchers in the School of Science at Rensselaer Polytechnic Institute are expanding a successful research program to uncover the minute workings of the photosynthetic protein, Photosystem II. The high-impact research, led by prof. K.V. Lakshmi, seeks to adapt photosynthesis for artificial use as an abundant source of renewable energy.
A collaboration of physicists and engineers has found a new way to control electron spins not with a magnetic field but with a mechanical oscillator. This demonstration of electron spin resonance that’s “shaken, not stirred” showed that an oscillator can drive the transitions of electron spins within defects commonly found in the crystal lattice of a diamond.
Much of what is known about sensory touch and hearing cells is based on indirect observation. Scientists know that these tiny cells are sensitive to changes in force and pressure. But to truly understand how they function, scientists must be able to manipulate them directly. Now, Stanford Univ. scientists are developing a set of tools that are small enough to stimulate an individual nerve or group of nerves.
A team working at the SACLA x-ray Free-Electron Laser in Japan has, for the first time, succeeded in generating ultra-bright, two-color x-ray laser pulses in the hard x-ray region. These light pulses have different wavelengths whose time separation can be adjusted with attosecond accuracy. They could be powerful tools for investigating the structure of matter and the dynamics of ultrafast physical processes and chemical reactions.
Using the powerful eye of NASA's Hubble Space Telescope, two teams of scientists have found faint signatures of water in the atmospheres of five distant planets. The presence of atmospheric water was reported previously on a few exoplanets orbiting stars beyond our solar system, but this is the first study to conclusively measure and compare the profiles and intensities of these signatures on multiple worlds.
Quantum entanglement, a perplexing phenomenon of quantum mechanics that Albert Einstein once referred to as “spooky action at a distance,” could be even spookier than Einstein perceived. A team of physicists believe the phenomenon might be intrinsically linked with wormholes, hypothetical features of space-time that in popular science fiction can provide a much-faster-than-light shortcut from one part of the universe to another.
X-rays transformed medicine a century ago by providing a noninvasive way to detect internal structures in the body. Still, they have limitations: X-rays cannot image the body’s soft tissues, except with the use of contrast-enhancing agents that must be swallowed or injected, and their resolution is limited. But a newly developed approach could dramatically change that.
Counselors helping people use the federal government's online health exchange are giving mixed reviews to the updated site, with some zipping through the application process while others are facing the same old sputters and even crashes. The Obama administration had promised a vastly improved shopping experience on healthcare.gov by the end of November, and this is the first week for users to test the updated site.
Hard-to-predict sudden changes to Earth's environment are more worrisome than climate change's bigger but more gradual impacts, a panel of scientists advising the federal government concluded Tuesday. The 200-page report by the National Academy of Sciences looked at warming problems that can occur in years instead of centuries. The report repeatedly warns of potential "tipping points" where the climate passes thresholds.
A consortium led by Northwestern Univ. will establish a new NIST-sponsored center of excellence for advanced materials research. The Center for Hierarchical Materials Design (CHiMaD) will be funded in part by a $25 million award from NIST over five years and will focus on computational tools, databases and experimental techniques to allow “materials by design”, a major goal of the Materials Genome Initiative.
DARPA-funded researchers have recently developed new methods to integrate long 50-m coils of waveguides with low signal loss onto microchips. This new class of photonic waveguides, with losses approaching that of optical fiber, is smaller and more precise than any previous light delay device.
NASA said Monday that the Hubble Space Telescope is the best bet for figuring out whether Comet ISON disintegrated during its brush with the sun last week. A pair of solar observatories saw something emerge from around the sun following ISON's close approach on Thanksgiving Day. But scientists don't yet know whether the spot of light was merely the comet's shattered remains or what's left of its icy nucleus.