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2009-10-28 07:32:16

Researcher Dr. David H. Hughes of the Air Force Research Laboratory in Rome, N.Y. is leading a team investigating long-distance, mobile optical links imperative for secure quantum communications capabilities in theater. Hughes and his Air Force Office of Scientific Research-funded team have conducted high data-rate experiments using an optical laser link, a tool which exploits the quantum noise of light for higher security. The system uses adaptive optics for transmission of high data-rate...

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2009-10-27 14:51:41

Sandia researchers have developed a process that can mix tiny volumes of liquid, even in complicated spaces. Researchers currently use all types of processes to try and create mixing, with only "mixed" success. "In small devices," says Sandia materials scientist Jim Martin "people have tried all kinds of pillars and mixing cells to initiate mixing, but these approaches don't work well." Researchers need simpler and more reliable ways to mix in tiny places such as micrometer-sized channels,...

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2009-10-23 10:22:56

A Spanish researcher has analyzed the preferences of wolves from the north east of the Iberian Peninsula to demonstrate that, in reality, their favorite prey are roe deer, deer and wild boar, ahead of domestic ruminants (sheep, goats, cows and horses). Wolves (Canis lupus) have been pursued by humans for centuries due to their supposed "addiction" to livestock. However, the study by Isabel Barja, sole author and researcher at the Universidad Aut³noma de Madrid [Autonomous University of...

2009-09-21 09:18:25

Saroi is a general tool which, apart from dealing with errors, is used for making consultations about structure in the trees of analysis and for undertaking searches for linguistic structures in such trees. A research worker at the University of the Basque Country (UPV/EHU) has analyzed the existing tools for the detection and correction of syntactic mistakes. To detect errors of context "”for example, concordance errors"” it is necessary to analysis the tree structure of the...

2009-09-17 09:01:24

While our standard of life increases, so does the worldwide energy demand. In this vein, the application of technologies based on fuel cells is put forward as an alternative to the massive consumption of fossil fuels. One of the fuel cells of greatest current interest is the solid oxide one. The PhD thesis by researcher at the University of the Basque Country (UPV/EHU), Ms Ana Martínez Amesti, focused on optimizing solid oxide fuel cells, one of the most promising...

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2009-09-09 11:42:15

Over a 23-year study, Javier Lob³n-Cerviá has found the mechanism that controls the number of salmonids found each year in Cantabrian rivers. His method has been to monitor population numbers in relation to river flow in March, when the juvenile fish emerge. He concludes that environmental conditions change each year and modify river flow, positively or negatively affecting survival rates. This information throws light on a long debate within ecological theory about the mechanisms...

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2009-09-02 23:50:00

An injectable biomaterial gel may help brain tissue grow at the site of a traumatic brain injury, according to findings by a Clemson University bioengineer. Research by assistant professor of bioengineering Ning Zhang shows that the biomaterial gel made up of both synthetic and natural sources has the potential to spur the growth of a patient's own neural stem cells in the body, structurally repairing the brain injury site. In previous lab studies, Zhang has demonstrated the reconstruction of...

2009-08-14 11:03:55

Capuchin monkeys, like people, subconsciously warm to those who mirror their body language, primatologists in Italy said. Studies have shown people who are imitated feel more positively, or express greater empathy, toward those who are imitating them. Now, in the first study of its kind, capuchin monkeys have demonstrated that imitation is flattering, scientists at the Institute of Cognitive Sciences and Technologies said. Researcher Elisabetta Visalberghi chose Capuchin monkeys for their...

2009-08-13 12:05:13

When there's something bugging rice farmers, a large segment of the world's population is likely to find out.Americans eat about 20.5 pounds of rice a year, while globally people annually eat about 126 pounds each, according to the United Nations Food and Agriculture Organization. Yet a big bite is also taken by insects in the field every year.One of the worst, the rice water weevil, is a Southeast Texas native measuring in at less than one-fourth inch long. But its gray snout has chomped...

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2009-07-30 10:00:00

Two researchers from the Polytechnic University of Catalonia (UPC) and the University of Aberdeen in the United Kingdom have shown for the first time that the law of brevity in human language, according to which the most frequently-used words tend to be the shortest, also extends to other animal species. The scientists have shown that dolphins are more likely to make simpler movements at the water surface."Patterns of dolphin behavior at the surface obey the same law of brevity as human...


Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'