Advertisement
News
Subscribe to R&D Magazine News

The Lead

Trapping light with a twister

December 23, 2014 | Comments

Researchers at MIT who succeeded last year in creating a material that could trap light and stop it in its tracks have now developed a more fundamental understanding of the process.             

TOPICS:
View Sample

FREE Email Newsletter

R&D Daily

Why upper motor neurons degenerate in ALS

January 29, 2015 8:44 am | by Marla Paul, Northwestern Univ. | Comments

For the first time, scientists have revealed a mechanism underlying the cellular degeneration of upper motor neurons, a small group of neurons in the brain recently shown to play a major role in ALS pathology. ALS, or amyotrophic lateral sclerosis, is a fatal neuromuscular disorder marked by the degeneration of motor neurons, which causes muscle weakness and impaired speaking, swallowing and breathing that leads to paralysis and death.

TOPICS:

Detecting chemical weapons with a color-changing film

January 29, 2015 8:39 am | by American Chemical Society | Comments

In today’s world, in which the threat of terrorism looms, there is an urgent need for fast, reliable tools to detect the release of deadly chemical warfare agents (CWAs). In ACS Macro Letters, scientists are reporting new progress toward thin-film materials that could rapidly change colors in the presence of CWAs.

TOPICS:

Spiky “hedgehog particles” for safer paints, fewer VOC emissions

January 29, 2015 8:28 am | by Gabe Cherry, Univ. of Michigan | Comments

A new process that can sprout microscopic spikes on nearly any type of particle may lead to more environmentally friendly paints and a variety of other innovations. Made by a team of Univ. of Michigan engineers, the "hedgehog particles" are named for their bushy appearance under the microscope.

TOPICS:
Advertisement

Researchers design tailored tissue adhesives

January 29, 2015 8:17 am | by Anne Trafton, MIT News Office | Comments

After undergoing surgery to remove diseased sections of the colon, up to 30% of patients experience leakage from their sutures, which can cause life-threatening complications. Many efforts are under way to create new tissue glues that can help seal surgical incisions and prevent such complications; now, a new study reveals that the effectiveness of such glues hinges on the state of the tissue in which they are being used.

TOPICS:

Gully patterns document Martian climate cycles

January 29, 2015 8:06 am | by Kevin Stacey, Brown Univ. | Comments

Geologists from Brown Univ. have found new evidence that glacier-like ice deposits advanced and retreated multiple times in the mid-latitude regions of Mars in the relatively recent past. For the study, the researchers looked at hundreds of gully-like features found on the walls of impact craters throughout the Martian mid-latitudes.

TOPICS:

Using ocean waves to monitor offshore oil and gas fields

January 29, 2015 7:54 am | by Ker Than, Stanford Univ. | Comments

A technology developed by Stanford Univ. scientists for passively probing the seafloor using weak seismic waves generated by the ocean could revolutionize offshore oil and natural gas extraction by providing real-time monitoring of the subsurface while lessening the impact on marine life.

TOPICS:

Some potentially habitable planets began as gaseous, Neptune-like worlds

January 29, 2015 7:45 am | by Peter Kelley, News and Information, Univ. of Washington | Comments

Two phenomena known to inhibit the potential habitability of planets might instead help chances for life on certain planets orbiting low-mass stars, Univ. of Washington astronomers have found. The astronomers say tidal forces and vigorous stellar activity could combine to transform uninhabitable “mini-Neptunes” into closer-in, gas-free, potentially habitable worlds.

TOPICS:

New mechanism unlocked for evolution of green fluorescent protein

January 28, 2015 10:51 am | by Jenny Green, Arizona State Univ. | Comments

A primary challenge in the biosciences is to understand the way major evolutionary changes in nature are accomplished. Sometimes the route turns out to be very simple. A group of scientists showed, for the first time, that a hinge migration mechanism, driven solely by long-range dynamic motions, can be the key for evolution of a green-to-red photoconvertible phenotype in a green fluorescent protein.

TOPICS:
Advertisement

Beer compound could help fend off Alzheimer’s

January 28, 2015 10:40 am | by American Chemical Society | Comments

The health-promoting perks of wine have attracted the spotlight recently, leaving beer in the shadows. But scientists are discovering new ways in which the latter could be a more healthful beverage than once thought. They’re now reporting that a compound from hops could protect brain cells from damage, and potentially slow the development of disorders such as Alzheimer’s and Parkinson’s diseases.

TOPICS:

Ancient star system reveals Earth-sized planets forming near start of universe

January 28, 2015 10:34 am | by Verity Leatherdale, Univ. of Sydney | Comments

A sun-like star with orbiting planets, dating back to the dawn of the galaxy, has been discovered by an international team of astronomers. At 11.2 billion years old it is the oldest star with Earth-sized planets ever found and proves that such planets have formed throughout the history of the universe. The discovery used observations made by NASA's Kepler satellite.

TOPICS:

Early Mesoamericans affected by climate change

January 28, 2015 10:22 am | by Anne M. Stark, Lawrence Livermore National Laboraotry | Comments

Scientists have reconstructed the past climate for the region around Cantona, a large fortified city in highland Mexico, and found the population drastically declined in the past, at least in part because of climate change. The research appears in the online edition of the Proceedings of the National Academy of Sciences.

TOPICS:

Ribose-seq identifies, locates ribonucleotides in genomic DNA

January 28, 2015 10:10 am | by John Toon, Georgia Institute of Technology | Comments

Ribonucleotides, units of RNA, can become embedded in genomic DNA during processes such as DNA replication and repair, affecting the stability of the genome by contributing to DNA fragility and mutability. Scientists have known about the presence of ribonucleotides in DNA, but until now had not been able to determine exactly what they are and where they are located in the DNA sequences.

TOPICS:

“Bulletproof” battery

January 28, 2015 9:55 am | by Nicole Casal Moore, Univ. of Michigan | Comments

New battery technology from the Univ. of Michigan should be able to prevent the kind of fires that grounded Boeing 787 Dreamliners in 2013. The innovation is an advanced barrier between the electrodes in a lithium-ion battery. Made with nanofibers extracted from Kevlar, the tough material in bulletproof vests, the barrier stifles the growth of metal tendrils that can become unwanted pathways for electrical current.

TOPICS:

Carbon nanoballs can greatly contribute to sustainable energy supply

January 28, 2015 9:07 am | by Johanna Wilde, Chalmers Univ. of Technology | Comments

Researchers at Chalmers Univ. of Technology have discovered that the insulation plastic used in high-voltage cables can withstand a 26% higher voltage if nanometer-sized carbon balls are added. This could result in enormous efficiency gains in the power grids of the future, which are needed to achieve a sustainable energy system.

TOPICS:

Laser pulse that gets shorter by itself

January 28, 2015 8:53 am | by Florian Aigner, Vienna Univ. of Technology | Comments

In a marathon, everyone starts at roughly the same place at roughly the same time. But the faster runners will gradually increase their lead, and in the end, the distribution of runners on the street will be very broad. Something similar happens to a pulse of light sent through a medium. The pulse is a combination of different colors (or wavelengths), and when they are sent through a medium like glass, they travel at different speeds.

TOPICS:

Pages

X
You may login with either your assigned username or your e-mail address.
The password field is case sensitive.
Loading