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A new form of carbon: ‘grossly warped nanographenes’

Contorted sheets of graphene alter physical, optical and electronic properties of new material
July 17, 2013

Chemists at Boston College and Nagoya University in Japan have synthesized the first example of a new form of carbon. The new material consists of multiple identical pieces of "grossly warped graphene," each containing exactly 80 carbon atoms joined together in a network of 26 rings, with 30 hydrogen atoms decorating the rim. Because they measure slightly more than a nanometer across, these individual molecules are referred to generically as "nanocarbons."</p>
<p>Credit: Nature Chemistry

Chemists at Boston College and Nagoya University in Japan have synthesized the first example of a new form of carbon

The new material consists of multiple identical pieces of grossly warped graphene, each containing exactly 80 carbon atoms joined together in a network of 26 rings, with 30 hydrogen atoms decorating the rim.

Grossly warped nanographenes

Because they measure slightly more than a… read more

DNA data overload

Computing, not sequencing, is now the slower and more costly aspect of genomics research
July 17, 2013

(Credit: Filip Federowicz (filu))

A flood of genetic data is being produced much faster than current computers can turn it into useful information, Johns Hopkins bioinformatics experts warn.

The source: rapidly increasing speed and declining cost of DNA sequencer machines, which chop extremely long strands of biochemical components into more manageable small segments.

But these sequencers do not yield important biological information that researchers “can read like a… read more

U.S. Army avatar role-play Experiment #3 now open for public registration

July 17, 2013


Military Open Simulator Enterprise Strategy (MOSES) is secure virtual world software designed to evaluate the ability of OpenSimulator to provide independent access to a persistent, virtual world. MOSES is a research project of the United States Army Simulation and Training Center STTC’s Virtual World Strategic Applications team uses OpenSimulator to add capability and flexibility to virtual training scenarios. 

Scenario Details

Experiment Description

Long-lasting blood vessels from reprogrammed human cells

July 16, 2013

Functional, durable blood vessels grown in a mouse model from human induced pluripotent stem cells. Laser microscopy image shows iPSC-generated endovascular cells in green, connective tissue cells in blue and red blood cells in red. (Credit: PNAS)

Massachusetts General Hospital (MGH) researchers have used vascular precursor cells derived from human induced pluripotent stem cells (iPSCs) to generate, in an animal model, functional blood vessels that lasted as long as nine months.

In their report being published in Proceedings of the National Academy of Sciences, the investigators describe using iPSCs — reprogrammed adult cells that have many of the characteristics of embryonic stem… read more

Graphene could deliver Internet 100 times faster

July 16, 2013


The use of graphene in telecommunications could dramatically accelerate Internet speeds by up to a hundred times, according to new research by scientists in the University of Bath‘s Department of Physics.

In a paper published in Physical Review Letters, researchers from the… read more

China plans to quadruple solar power-generating capacity by 2015

July 16, 2013


China has given a lift to the renewable energy industry by formally setting out plans to more than quadruple its solar power-generating capacity to 35 gigawatts by 2015, Financial Times reports.

China’s State Council, or cabinet, said it hoped 10GW of capacity would be added annually over the next three years.

China has the world’s third-biggest installed capacity of solar power, with 8.3GW of solar photovoltaic… read more

New theory uncovers cancer’s deep evolutionary roots

Authors predict that if cancer cells are saturated with oxygen but deprived of sugar, it will slow them down or even even kill them
July 16, 2013

This typical four-week-old human embryo looks similar to fish embryos, with proto-gills and a tail.(credit: University of New South Wales)

A new way to look at cancer — by tracing its deep evolutionary roots to the dawn of multicellularity more than a billion years ago — has been proposed by Paul Davies of Arizona State University’s Beyond Center for Fundamental Concepts in Science in collaboration with Charles Lineweaver of the Australian National University.

If their theory is correct, it promises to transform the approach to… read more

Levitation with acoustic waves

Zero-G effects on Earth
July 16, 2013


ETH researchers can make objects such as particles and liquid droplets fly in mid-air by letting them ride on acoustic waves.  They can also control their movement and merge droplets, which can react chemically or biologically. They can even rotate a toothpick in the air.

The magic trick is based on acoustic waves, reveals Daniele Foresti, former doctoral student now a postdoctoral researcher… read more

AI software smart as a 4-year-old

July 16, 2013


Artificial and natural knowledge researchers at the University of Illinois at Chicago have IQ-tested one of the best available artificial intelligence systems to see how intelligent it really is.

About as smart as the average 4-year-old, they will report July 17 at the U.S. Artificial Intelligence Conference in Bellevue, Wash.

The UIC team put ConceptNet 4, AI software developed at… read more

Boldly illuminating biology’s ‘dark matter’

July 16, 2013


“Microbial dark matter” is the pervasive yet practically invisible infrastructure of life on the planet, which can have profound influences on the most significant environmental processes: from plant growth and health, to nutrient cycles in terrestrial and marine environments, the global carbon cycle, and possibly even climate processes.

By employing next-generation DNA sequencing of genomes isolated from single cells, great strides are being made in… read more

Novel quantum dot-based technique sees 100 different molecules in a single cell

Better diagnosis and treatment of cancer could hinge on the ability to rapidly map out networks of dozens of molecules in individual tumor cells
July 16, 2013


New research from the University of Washington offers a more comprehensive way of analyzing a single cell’s unique behavior and could reveal patterns that indicate why a cell will or will not become malignant.

Xiaohu Gua and graduate student Pavel Zrazhevskiy have used an array of distinctly colored quantum dots to illuminate 100 biomarkers, a ten-fold increase from the current research standard, to help analyze individual cells… read more

Is this Elon Musk’s secret design for a high-speed train?

July 16, 2013


Elon Musk has been hinting at an idea he calls the Hyperloop — a ground-based transportation technology that would get people from Los Angeles to San Francisco in under half an hour, for less than 1/10 the cost of California’s $69 billion plan.

On Monday, Musk tweeted that he will publish an “alpha design” for the Hyperloop by Aug. 12. As Slateread more

Imaging individual atoms in a live catalytic reaction

July 15, 2013


Researchers have observed and analyzed single atoms, small clusters, and nanoparticles in dynamic in-situ experiments for the first time, thanks to groundbreaking new electron microscopy technology developed at the University of York.

The research could open new opportunities for observing and understanding the role of atoms in reactions in many areas of the physical sciences. It also has important implications for new medicines and new… read more

Engineering longer lifespan for joint replacements

July 15, 2013


Researchers at the University of Southampton have completed a project that will enable surgeons to fit joint replacements with longer, optimized lifespans.

The MXL project uses computational modelling to define the mechanics of an artificial joint — a complex interaction of individual anatomy, prosthesis design, sizing and placement — to ensure successful surgery and longer lifespans of the prosthetic joints.

“We developed… read more

Silicon oxide chip design could replace flash memory

July 15, 2013

Rice University has built crossbar memory chips based on silicon oxide that show potential for next-generation 3-D memories for computers and consumer devices. (credit: Tour Group/Rice University)

Rice University team led by chemist James Tour has built a 1-kilobit rewritable silicon oxide chip that could surpass the limitations of flash memory in packing density, energy consumption per bit, and switching speed.

Normal operating voltages can repeatedly break and “heal” the channel, which can be read as either a “1” or “0” depending on whether it is broken or intact.… read more

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