News tagged with diffusion

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New research shows why metal alloys degrade

Physics / General Physics

created Sep 24, 2008 | popularity 4.1 / 5 (32) | comments 3

(PhysOrg.com) -- Metal alloys can fail unexpectedly in a wide range of applications -- from jet engines to satellites to cell phones—and new research from the University of Michigan helps to explain why.


Carnegie Mellon scientists discover first evidence of brain rewiring in children

Scientists discover first evidence of brain rewiring in children

Medicine & Health / Neuroscience

created Dec 09, 2009 | popularity 5 / 5 (8) | comments 0

Carnegie Mellon University scientists Timothy Keller and Marcel Just have uncovered the first evidence that intensive instruction to improve reading skills in young children causes the brain to physically ...


Faulty 'wiring' in the brain triggers onset of schizophrenia

Medicine & Health / Psychology & Psychiatry

created Oct 26, 2009 | popularity 5 / 5 (6) | comments 0

A new study by researchers at the Institute of Psychiatry (IoP), King's College London has discovered abnormalities in the white matter of the brain that seem to be critical for the timing of schizophrenia. The study, led ...


Step forward for nanotechnology: Controlled movement of molecules

Nanotechnology / Nanomaterials

created Sep 30, 2009 | popularity 4.8 / 5 (6) | comments 0

Scientists in the United Kingdom are reporting an advance toward overcoming one of the key challenges in nanotechnology: Getting molecules to move quickly in a desired direction without help from outside forces. Their achievement ...


Blue light specials

Blue light specials: New materials boost efficiency of blue OLEDs by 25 percent

Chemistry / Materials Science

created Mar 22, 2009 | popularity 4 / 5 (7) | comments 3

Lighting consumes one-fifth of the electricity generated in the United States. Solid-state lighting offers tremendous potential to improve the situation - once major research challenges are overcome.


Breaking Down the Barrier for Smaller, Faster Electronic Devices

Breaking Down the Barrier for Smaller, Faster Electronic Devices

Physics / Condensed Matter

created Oct 05, 2009 | popularity 4.2 / 5 (5) | comments 0

(PhysOrg.com) -- A team of international researchers is the first to uncover the chemical composition and structure of a microelectronics element that is vital to producing ever smaller - and, thus, cheaper ...


Two-In-One Punch Knocks Out Drug Resistant Cancer Cells

Nanotechnology / Bio & Medicine

created Nov 04, 2009 | popularity 5 / 5 (4) | comments 0

(PhysOrg.com) -- Cancer cells, like bacteria, can develop resistance to drug therapy, leading to relapse of disease. One approach showing promise in overcoming multidrug resistance in tumors is to combine two different anticancer ...


Surprising results in teen study: adolescent risky behavior may signal mature brain

Medicine & Health / Research

created Aug 26, 2009 | popularity 4 / 5 (4) | comments 1

A new study using brain imaging to study teen behavior indicates that adolescents who engage in dangerous activities have frontal white matter tracts that are more adult in form than their more conservative peers.


No small measure: Origins of nanorod diameter discovered

Nanotechnology / Nanophysics

created Mar 19, 2009 | popularity 5 / 5 (2) | comments 0

(PhysOrg.com) -- A new study answers a key question at the very heart of nanotechnology: Why are nanorods so small?


Neural pathway missing in tone-deaf people

Medicine & Health / Neuroscience

created Aug 18, 2009 | popularity 5 / 5 (2) | comments 2

Nerve fibers that link perception and motor regions of the brain are disconnected in tone-deaf people, according to new research in the August 19 issue of The Journal of Neuroscience. Experts estimate that at least 10 per ...


Medicine released from pill filmed

Medicine released from pill filmed

Chemistry / Analytical Chemistry

created Mar 13, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- In an international alliance with funding from NanoNed, the Dutch national research programme, researchers at the University of Twente, the Netherlands, have succeeded in filming the spread ...


MRI scans can predict effects of MS flare-ups on optic nerve

Medicine & Health / Research

created Dec 16, 2008 | popularity not rated yet | comments 0

One of the most pernicious aspects of multiple sclerosis (MS) — its sheer unpredictability — may finally be starting to yield to advanced medical imaging techniques.


Computer model predicts brain tumor growth and evolution

Computer model predicts brain tumor growth and evolution

Medicine & Health / Cancer

created May 18, 2009 | popularity not rated yet | comments 0

Researchers from Brown University and other institutions have developed a computational computer model of how brain tumors grow and evolve.


Scientists identify gene for deadly inherited lung disease

Medicine & Health / Genetics

created Jun 04, 2009 | popularity not rated yet | comments 0

A rare, deadly developmental disorder of the lungs called alveolar capillary dysplasia with misalignment of pulmonary veins (ACD/MPV) that usually kills the infants born with it within the first month of life results from ...


Abnormal brain circuits may prevent movement disorder

Medicine & Health / Neuroscience

created Aug 04, 2009 | popularity not rated yet | comments 0

Specific changes in brain pathways may counteract genetic mutations for the movement disorder dystonia, according to new research in the August 5 issue of The Journal of Neuroscience. Few people who inherit dystonia genes ...