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Tuesday, November 4, 2014

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News

Plasma: Casimir and Yukawa mesons

Posted: 03 Nov 2014 05:25 AM PST

The Casimir electromagnetic fluctuation forces across plasmas are analogous to so-called weak nuclear interaction forces according to new research. A new theoretical work has established a long-sought-after connection between nuclear particles and electromagnetic theories. Its findings suggest that there is an equivalence between generalized Casimir forces and those that are referred to as weak nuclear interactions between protons and neutrons.

New two-stroke engine, notable for its low consumption and low level of pollutant emissions

Posted: 03 Nov 2014 05:25 AM PST

Scientists have created a new two-stroke engine for use in small cars, notable for its low consumption and low level of pollutant emissions. The engine is quite small and light and uses only two cylinders instead of the four commonly used in the four-stroke engines currently on the market.

Keeping good company on Facebook

Posted: 03 Nov 2014 05:25 AM PST

It seems that no company can afford not to engage with its customers and potential clients via online social networking sites, such as Facebook and Twitter, these days. The likes of Facebook have become hubs for such direct company to customer interactions where queries can be quickly answered, grievances addressed and products and services promoted through a marketing model that simply did not exist when the web first went commercial long before the web 2.0 concept was realized. What companies would like to know for sure, however, is whether or not their online networking efforts offer a good return on investment in terms of the bottom line regardless of whether they improve customer relations.

VLTI Detects Exozodiacal Light: New challenge for direct imaging of exo-Earths

Posted: 03 Nov 2014 05:25 AM PST

Astronomers have discovered exozodiacal light close to the habitable zones around nine nearby stars. This light is starlight reflected from dust created as the result of collisions between asteroids, and the evaporation of comets. The presence of such large amounts of dust in the inner regions around some stars may pose an obstacle to the direct imaging of Earth-like planets in the future.

New technique efficiently turns antibodies into highly tuned 'nanobodies'

Posted: 02 Nov 2014 01:01 PM PST

A new system promises to make nanobodies -- antibodies' tiny cousins -- dramatically more accessible for all kinds of research.

Ultracold disappearing act: 'Matter waves' move through one another but never share space

Posted: 02 Nov 2014 01:01 PM PST

How can two clumps of matter pass through each other without sharing space? Physicists have documented a strange disappearing act by colliding Bose Einstein condensates that appear to keep their distance even as they pass through one another.

Mutant models to identify cancer mutations

Posted: 02 Nov 2014 01:01 PM PST

Using mathematical toolkits traditionally considered the property of statistical physics and artificial intelligence, researchers have developed a way to identify important cancer mutations. This approach can model the effects that cancer mutations have on the intricate patterns of communication between groups of proteins involved in cell signaling. The model shows how mutations can alter signaling networks and points the way to a better understanding of cancer genomes.

Step toward quantum computers: Two photons strongly coupled by glass fiber

Posted: 02 Nov 2014 01:01 PM PST

Usually, light waves do not interact with each other. Coupling of photons with other photons is only possible with the help of special materials and very intense light. Scientists have now created the strongest possible coupling of only two photons -- an important achievement for quantum optics.

Improving imaging of cancerous tissues by reversing time

Posted: 02 Nov 2014 12:58 PM PST

A novel time-reversal technology is being applied by researchers that allows them to better focus light in tissue, such as muscles and organs. Current high-resolution optical imaging technology allows researchers to see about 1 millimeter deep into the body. In an attempt to improve this "visibility," this study used photoacoustic imaging, which combines light with acoustic waves, or sound, to form a sharper image, even several centimeters into the skin.

Are my muscular dystrophy drugs working? Measuring muscle health with low-resolution ultrasound images

Posted: 01 Nov 2014 02:31 PM PDT

People with muscular dystrophy could one day assess the effectiveness of their medication with the help of a smartphone-linked device, a new study in mice suggests. The study used a new method to process ultrasound imaging information that could lead to hand-held instruments that provide fast, convenient medical information.

New generation of storage -- ring

Posted: 31 Oct 2014 09:12 AM PDT

Researchers report the first of a new generation of storage-ring-based synchrotron light sources which employ a multibend achromat lattice to reach emittances in the few hundred pm rad range in a circumference of a few hundred meters.

New computer imaging approaches used to accurately measure breast tumors, chronic wounds

Posted: 30 Oct 2014 12:06 PM PDT

Surgeons are tweaking existing computer technologies to enhance their visualization of cancerous tumors and persistent wounds according to experts. These high-tech imaging techniques, according to their developers, are more accurate than standard methods.

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