Tag: "magnetic" at biology news
New tool tracks brain development in babies
...rognosis." The researchers used 'diffusion tensor' magnetic
resonance imaging (MRI), which depicts the diffusion, or displacement, of water molecules through tissue. Ischemia results in tissue changes that are visible with diffusion tensor imaging at least two to three hours before they can be seen on convent...
Avoiding punishment is its own reward
...d activity. Kim et al. argue that these functional magnetic
resonance imaging (fMRI) results provide direct evidence that avoiding bad outcomes and receiving a reward provoke a similar response in the medial OFC. Avoiding negative outcomes and receiving rewards amount to the same thing for the brain: achie...
Carnegie Mellon researchers discover key deficiencies in brains of people with autism
...IQs. In one study, the researchers used functional magnetic
resonance imaging (fMRI) to view which parts of the brain were activated in people with autism compared to a control group of normal participants while completing the Tower of London task. In a Tower of London task, participants must -- in a set numb...
Yale biomedical engineers receive prestigious Early Career Awards
...usly detect cells that cause autoimmune disease by magnetic
resonance imaging, and deliver drugs to those cells," said Fahmy. "The approach is driven by an expert understanding of the basic and clinical science coupled to a promising novel nanotechnology that is rapidly translatable to the clinical setting. ...
Study confirms males/females use different parts of brain in language & visuospatial tasks
...dy Krieger Institute in Baltimore, used functional magnetic
resonance imaging to study thirty adult participants while performing language and visuospatial tasks. Distinct differences were evident between male and female participants. Specifically, females showed more bilateral activation in the inferior fr...
Autistic brain has fewer neurons for processing emotion
...he amygdala. Paradoxically, past research using magnetic
resonance imaging with children has shown that the amygdala in young males with autism is abnormally large in volume due to precocious maturation. "It is somewhat surprising, therefore, that there are ultimately fewer neurons in the autistic amygdala...
Magnetism and mimicry of nature hold hope for better medicine, environmental safety
...perhydrophobic surfaces, but the introduction of a magnetic
field produced by injecting tiny magnetic
particles into the droplets keeps the ball from rolling off the surface. This allows for the fluid...
NC State scientists characterize protein linked to neurodegenerative diseases
... from each other. The research team used nuclear magnetic
resonance to get a high-resolution picture of what...ing technique occurring inside machines that have magnetic
fields several hundred times greater than the Earth's magnetic
pull radio waves are bounced off the...
Pure novelty spurs the brain
...the subject's brains were scanned using functional magnetic
resonance imaging--they were shown a series of ima...y novel image. In fMRI, harmless radio signals and magnetic
fields are used to measure blood flow in brain regions, which reflects activity in those regions. ...
Current technology for brain cooling unlikely to help trauma patients
...ts and Sciences, have been developing a way to use magnetic
resonance imaging units to assess temperature non-invasively in the human brain. Yablonskiy, Ackerman, who is also professor of radiology and research professor of chemistry in medicine, and their colleagues hope to apply this approach soon to furthe...
Three at MIT conceive cell-shaped building
...tific tools, such as X-ray diffraction and nuclear magnetic
resonance, or modeled with advanced computers. But if they can be amplified billions of times as in a building, then these molecular structures can be seen, touched and admired. At that large scale, they can also be very educational for people of all...
Surprise finding for stretched DNA
...rkeley used a combination of microscopic beads and magnetic
tweezers to observe that when a DNA molecule is stretched, it actually begins to overwind. This overwinding continues until the force being applied to stretch the DNA exceeds about 30 picoNewtons. (One picoNewton is about a trillionth the force requi...
Light guides flight of migratory birds
...ons, including the Sun, star patterns, the earth's magnetic
field, and sky polarized light patterns. To avoid ...able to demonstrate that the birds calibrate their magnetic
compass based on polarized light patterns at sunset and sunrise. The research appears in the Aug. ...
NIH funds 14 High-End Instrumentation grants
...ia, Los Angeles. Also, awards will support three magnetic
resonance imaging (MRI) systems to facilitate the ...l Hospital will be advanced with the addition of a magnetic
resonance (MR) microscope. Finally, an ultra high-throughput genome sequencing system will support ...
A new tool against brain disease
...rotein. Meanwhile, Han in South Korea used nuclear magnetic
resonance to make pictures showing the structure of the new toxin. Together, the images provide a highly detailed picture of how the cone snail toxin fits into the binding protein, and thus how it also would fit into a nicotinic receptor. "By p...
Researchers discover brain abnormality in kids with autism
...All of the children were age two to four. Using magnetic
resonance imaging scans (MRI), the researchers measured the transverse relaxation (T2) of cortical gray and white matter in the children's brains. T2 relaxation is a measure of how tightly bound, or mobile, water is in brain tissue and has been used ...
News tips from the Journal of Neuroscience
...one quadrant of the visual field. Using functional magnetic
resonance imaging, regions of interest (ROI) in contralateral V1 were activated by quarter arcs in each quadrant. Activity in the ROI for one quadrant was enhanced when a complete circle was presented compared to the arc alone. Interestingly, the res...
Snap judgments decide a face's character, psychologist finds
...ool for probing brain activity called a functional magnetic
resonance imager (fMRI), and Todorov said some of his general research suggests that the part of the brain that responds directly to fear may be involved in judgments of trustworthiness. "The fear response involves the amygdala, a part of the brai...
ACS News Service Weekly PressPac -- August 23, 2006
...the ACS journal, Energy & Fuels. The method uses a magnetic
field to make tiny wax-like particles in paraffin-...r technical challenges, including synthesizing new magnetic
semiconductors and other materials with properties suited for spintronics applications, the article ...
Research team to analyze brain changes in schizophrenia
...ncludes assessing changes in brain structure using magnetic
resonance imaging (MRI) after 5 months of treatment. Compare the monkey data with human post-mortem tissue taken from people who were diagnosed with schizophrenia and bipolar illness in which antipsychotic dugs were used as treatment. Hemby said ...
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