News tagged with spectrum

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How do you improve mammogram accuracy? Add noise

Technology / Computer Sciences

created Dec 22, 2009 | popularity 5 / 5 (1) | comments 0

Members of a Syracuse University research team have shown that an obscure phenomenon called stochastic resonance (SR) can improve the clarity of signals in systems such as radar, sonar and even radiography, used in medical ...


Rate of autism disorders climbs to 1 percent among 8-year-olds

Medicine & Health / Diseases

created Dec 18, 2009 | popularity not rated yet | comments 13

Autism and related development disorders are becoming more common, with a prevalence rate approaching 1 percent among American 8-year-olds, according to new data from researchers at the University of Alabama at Birmingham ...


FCC offers early peak at national broadband plan

Technology / Telecom

created Dec 16, 2009 | popularity not rated yet | comments 0

(AP) -- Expanding the fund that subsidizes telephone service for poor and rural communities and finding more spectrum for wireless broadband services will be key pieces of a federal plan to bring high-speed Internet connections ...


Highlight: Solar - Bridging the gap

Physics / General Physics

created Dec 10, 2009 | popularity 2 / 5 (2) | comments 0

(PhysOrg.com) -- Titanium dioxide, the same inexpensive white pigment that protects us from sunburns, can be converted into a material that absorbs sunlight and could greatly increase the efficiency of solar energy cells.


A man talks his mobile phone in front a government telecommunication billboard

India misses deadline for 3G auction

Technology / Telecom

created Dec 09, 2009 | popularity not rated yet | comments 0

India's government has missed a deadline for inviting bidders to take part in its long-awaited auction for third generation (3G) mobile telecom services.


People affected by autism believe increase is 'real,' not diagnostic

Medicine & Health / Diseases

created Dec 09, 2009 | popularity 2.8 / 5 (4) | comments 1

There has been a major increase in the number of children diagnosed with autistic spectrum disorders over the last two decades - the question is why? Researchers have found a sharp difference between the beliefs of ordinary ...


Turning metal black more than just a novelty

Physics / General Physics

created Dec 08, 2009 | popularity 4.6 / 5 (20) | comments 5

(PhysOrg.com) -- University of Rochester optics professor Chunlei Guo made headlines in the past couple of years when he changed the color of everyday metals by scouring their surfaces with precise, high-intensity laser bursts.


Fine-tuned

Fine-tuned: A wholly new approach to tuning a laser's frequency

Physics / Optics & Photonics

created Dec 04, 2009 | popularity 4.5 / 5 (10) | comments 2

(PhysOrg.com) -- For more than 30 years, scientists have been trying to harness the power of terahertz radiation. Tucked between microwaves and infrared rays on the electromagnetic spectrum, terahertz rays ...


Treatments for asthma and pre-term labor may increase risk of autism in developing fetus

Medicine & Health / Research

created Dec 02, 2009 | popularity not rated yet | comments 0

Commonly prescribed beta 2 adrenergic agonist drugs for the treatment of asthma in pregnant women as well as pre-term labor may increase the incidence of autism-spectrum disorders, psychiatric pathology, cognitive problems ...


Researchers Identify Key Molecules in Photosynthesis

Researchers Identify Key Molecules in Photosynthesis

Chemistry / Biochemistry

created Dec 02, 2009 | popularity 5 / 5 (8) | comments 0

(PhysOrg.com) -- Chemistry professor Harry Frank led an international group of researchers that identified the molecules in algae which direct the organisms to convert sunlight into oxygen. The findings may ...


Scientists demonstrate multibeam, multi-functional lasers

Scientists demonstrate multibeam, multi-functional lasers

Physics / General Physics

created Nov 30, 2009 | popularity 4.4 / 5 (7) | comments 0

An international team of applied scientists from Harvard, Hamamatsu Photonics, and ETH Zürich have demonstrated compact, multibeam, and multi-wavelength lasers emitting in the invisible part of the light spectrum ...


Study uses brain scans to discover how children 'read' faces

Study uses brain scans to discover how children 'read' faces

Medicine & Health / Psychology & Psychiatry

created Nov 20, 2009 | popularity not rated yet | comments 1

(PhysOrg.com) -- Oxford University scientists are using brain-scanning technology to understand how we learn to recognise and 'read' faces as children.


Research Finds Ritalin's Benefits in Treating Children with Autism

Medicine & Health / Diseases

created Nov 19, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- UA researchers present evidence that the Ritalin is effective in treating preschoolers with Autism in a first-ever clinical trial to test the medication's efficacy with children with the disorder.


Researchers patent enabling technology for spread-spectrum systems

Technology / Telecom

created Nov 17, 2009 | popularity 4 / 5 (2) | comments 0

If you've ever gotten the dreaded "network busy" message while trying to make a cell phone call, you've experienced the complication of sharing a single network with numerous other users.


Children with autism more likely to have handwriting problems

Medicine & Health / Neuroscience

created Nov 09, 2009 | popularity not rated yet | comments 0

Children with autism may have lower quality handwriting and trouble forming letters compared to children without autism, according to a study published in the November 10, 2009, print issue of Neurology, the medical journa ...