Tech

Scientists create renewable fossil fuel alternative using bacteria

The development is a step towards commercial production of a source of fuel that could one day provide an alternative to fossil fuels.

Propane is an appealing source of cleaner fuel because it has an existing global market. It is already produced as a by-product during natural gas processing and petroleum refining, but both are finite resources. In its current form it makes up the bulk of LPG (liquid petroleum gas), which is used in many applications, from central heating to camping stoves and conventional motor vehicles.

Single laser stops molecular tumbling motion instantly

In the quantum world, making the simple atom behave is one thing, but making the more complex molecule behave is another story.

Now Northwestern University scientists have figured out an elegant way to stop a molecule from tumbling so that its potential for new applications can be harnessed: shine a single laser on a trapped molecule and it instantly cools to the temperature of outer space, stopping the rotation of the molecule.

CMOS biomimicry: Biomimetic photodetector 'sees' in color

Rice University researchers have created a CMOS-compatible, biomimetic color photodetector that directly responds to red, green and blue light in much the same way the human eye does.

The new device uses an aluminum grating that can be added to silicon photodetectors with the silicon microchip industry's mainstay technology, "complementary metal-oxide semiconductor," or CMOS.

Engineers develop new sensor to detect tiny individual nanoparticles

Nanoparticles, engineered materials about a billionth of a meter in size, are around us every day. Although they are tiny, they can benefit human health, as in some innovative early cancer treatments, but they can also interfere with it through viruses, air pollution, traffic emissions, cosmetics, sunscreen and electronics.

Faster, cheaper tests for sickle cell

Within minutes after birth, every child in the U.S. undergoes a battery of tests designed to diagnose a host of conditions, including sickle cell disease. Thousands of children born in the developing world, however, aren't so lucky, meaning many suffer and die from the disease each year.

A.J. Kumar hopes to put a halt to at least some of those deaths.

Mortimer: the musical robot that gives musicians a helping hand

Meet the musical robot that’s giving musicians a helping hand. He is Mortimer, the drumming robot.

Researchers at Queen Mary University of London (QMUL) have developed and tested a robot that can interact with musicians, and even influence the way they play. But is it a harmonious relationship or one-hit wonder?

Mortimer the drumming robot. Credit: Louis McCallum

New tuberculosis blood test in children is reliable and highly specific

A new blood test provides a fast and accurate tool to diagnose tuberculosis in children, a new proof-of-concept study shows. The newly developed test (TAM-TB assay) is the first reliable immunodiagnostic assay to detect active tuberculosis in children. The test features excellent specificity, a similar sensitivity as culture tests in combination with speed of a blood test. The promising findings are a major advance for the diagnosis of tuberculosis in children, particularly in tuberculosis-endemic regions.

Antarctic sea-level rising faster than global rate

A new study of satellite data from the last 19 years reveals that fresh water from melting glaciers has caused the sea-level around the coast of Antarctica to rise by 2cm more than the global average of 6cm.

Researchers at the University of Southampton detected the rapid rise in sea-level by studying satellite scans of a region that spans more than a million square kilometres.

ODYSSEY LONG TERM - Long term results underscore efficacy and safety of alirocumab for lowering cholesterol

Long term results for the investigational monoclonal antibody alirocumab, show that in addition to significantly reducing cholesterol on top of regular statin therapy, it also reduced the incidence of cardiovascular events, researchers reported in a Hot Line session today at ESC Congress 2014.

The ODYSSEY LONG TERM trial of alirocumab is the largest Phase 3 study, with the longest follow-up data for a new class of drugs called proprotein convertase subtilisin kexin type 9 (PCSK9) inhibitors.

Batteryless cardiac pacemaker is based on automatic wristwatch

Barcelona, Spain – Sunday 31 August 2014: A new batteryless cardiac pacemaker based on an automatic wristwatch and powered by heart motion was presented at ESC Congress 2014 today by Adrian Zurbuchen from Switzerland. The prototype device does not require battery replacement.

Revealing a novel mode of action for an osteoporosis drug

Raloxifene is a U.S. Food and Drug Administration (FDA)-approved treatment for decreasing fracture risk in osteoporosis. While raloxifene is as effective at reducing fracture risk as other current treatments, this works only partially by suppressing bone loss. With the use of wide- and small-angle x-ray scattering (WAXS and SAXS, respectively), researchers carried out experiments at the U.S.

Reducing water scarcity possible by 2050

Water scarcity is not a problem just for the developing world. In California, legislators are currently proposing a $7.5 billion emergency water plan to their voters; and U.S. federal officials last year warned residents of Arizona and Nevada that they could face cuts in Colorado River water deliveries in 2016.

'Face time' for the heart diagnoses cardiac disease

To the careful observer, a person's face has long provided insight into what is going on beneath the surface. Now, with the assistance of a web camera and software algorithms, the face can also reveal whether or not an individual is experiencing atrial fibrillation, a treatable but potentially dangerous heart condition.

Socially-assistive robots help kids with autism learn by providing personalized prompts

LOS ANGELES - August 28, 2014: This week, a team of researchers from the USC Viterbi School of Engineering will share results from a pilot study on the effects of using humanoid robots to help children with autism practice imitation behavior in order to encourage their autonomy. Findings from the study, entitled "Graded Cueing Feedback in Robot-Mediated Imitation Practice for Children with Autism Spectrum Disorders," will be presented at the 23rd IEEE International Symposium on Robot and Human Interactive Communication (RO-MAN) conference in Edinburgh, Scotland, on Aug. 27.

Home is where the microbes are

A person's home is their castle, and they populate it with their own subjects: millions and millions of bacteria.

A study published today in Science provides a detailed analysis of the microbes that live in houses and apartments. The study was conducted by researchers from the U.S. Department of Energy's Argonne National Laboratory and the University of Chicago.