Tag: "magnetic" at biology news
New slant on vision research: Neurons sensitive to viewing angle
...rchers next plan to put volunteers in a functional magnetic
resonance imaging scanner and see how different neurons respond to different views of objects. The work was supported by the James S. McDonnell Foundation, the National Institutes of Health and the University of Minnesota....
Linking brain to mind in a common genetic disease
...ving the field is the application of tools such as magnetic
resonance imaging (MRI) to yield more precise measurements of structures in the living brain. MRI can provide images and compute volumes of anatomical features. In addition, by measuring how water diffuses in the brain, it indicates the layout of ner...
Biochemists report discovery of structure of major piece of telomerase; implications for cancer
...the structure with Theimer and Blois using nuclear magnetic
resonance (NMR) spectroscopy. Mutations in the RNA are associated with the inherited diseases aplastic anemia and dyskeratosis congenita, which frequently are manifested by progressive bone-marrow failure. "When you look at the sequence on paper, it ...
Nanotechnology's progress and challenges addressed during ACS meeting
...eimer's. The bio-barcode assay fixes antibodies to magnetic
particles and gold nanocrystals laced with strands of DNA, referred to as bar code DNA. Somewhat like a consumer bar code, these DNA barcodes are identified on a chip designed to sort and measure their concentrations. The assay also holds promise for...
Carnegie Mellon scientists develop tool that uses MRI to visualize gene expression in living animals
...rategies," Ahrens said. Ahrens' new approach uses magnetic
resonance imaging (MRI) to monitor gene expression...ons in water molecules after they are exposed to a magnetic
field and radiofrequency pulses. These signals are then converted into an image. Ahrens' new MRI rep...
Two UT Southwestern researchers named Howard Hughes Medical Institute investigators
...ons are addressed using techniques such as nuclear magnetic
resonance (NMR) spectroscopy, which takes advantage of the way magnetic
fields affect atomic nuclei to determine the structure of complex molecules such as proteins. Dr....
New insight into people who 'see' colors in letters and numbers
...nia San Diego, have found. What's more, functional magnetic
resonance imaging (fMRI) of their brains reveals t...esthetic colors. In fMRI, harmless radio waves and magnetic
fields are used to map regions of higher blood flow in the brain, which reflects higher activity in ...
Neuroscientists locate 'imaginary' colors
...t, as measured in behavioral tests, but functional magnetic
resonance imaging (fMRI) of their brains also shows activation in the color-selective regions of the cortex when they view black-and-white letters or numbers. The results, say researchers from the University of California, San Diego and the Salk In...
New imaging method gives early indication if brain cancer therapy is effective, U-M study shows
... they call a functional diffusion map. They used a magnetic
resonance imaging scan that tracks the diffusion, or movement, of water through the brain and mapped the changes in diffusion from the start of therapy to three weeks later. The tumor cells block the flow of water, so as those cells die, water diffus...
DFG awards 2005 Heinz Maier-Leibnitz Prize
...inued his pioneering work by measuring and mapping magnetic
fields in the areas surrounding newly formed stars resembling the sun. Working with several international research teams, Wolf has analysed debris discs, which play an important role in the final stages of planetary formation. Together with his Emmy ...
Emory scientist finds different paths lead to similar cognitive abilities
...etaceans during the past 47 million years by using magnetic
resonance imaging and histological studies of the fossil record. While modern humans have brains that are seven times bigger than would be expected for our body size, giving us an encephalization level of seven, some modern dolphins and whales have a...
NIH awards Georgia Tech/Emory $11.5 M for nano cardiology research
... molecular beacons, semiconductor quantum dots and magnetic
nanoparticles. Healthy, undamaged cells lining the...ion sensitivity. Other research will include using magnetic
nanoparticles to detect early-stage plaques in patients. The magnetic
nanoparticles will target spec...
Depression gene may weaken mood-regulating circuit
...arch team first scanned 114 healthy subjects using magnetic
resonance imaging (MRI). Those with at least one c...copies of the long variant. Next, using functional magnetic
resonance imaging (fMRI), the researchers monitored the brain activity of 94 healthy participants wh...
... therapy may use a technique in which non-invasive magnetic
resonance imaging (MRI) is used to track this mole... cells showed up in the MRI (which is sensitive to magnetic
particles such as iron), effectively identifying the genetically modified cells. This method grew ...
African-Americans and Caucasians have similar emotional brain activity when seeing African-Americans
...pes." Lieberman and his colleagues used functional magnetic
resonance imaging (fMRI) to examine brain activity for this study, conducted at UCLA's Ahmanson-Lovelace Brain Mapping Center....
Brain may be less plastic than hoped
...stitute for Biological Cybernetics used functional magnetic
resonance imaging (fMRI) to monitor cortical activity for seven and one-half months after injury to the retina of adult monkeys. They found limited reorganization in the primary visual cortex. Their results contradict previous thinking. In a "News a...
Migratory songbirds have a specialized night-vision brain area
...e by the stars, and to visually detect the earth's magnetic
field through photoreceptor molecules, whose light... fly, as well as navigate by stars and the earth's magnetic
field. Surprisingly, Jarvis said, recent scientific evidence has suggested that birds have specializ...
Super predators and mass extinctions; extreme NMR; and the world's smallest solenoids
...ould lead to a highly sensitive way to measure the magnetic
fields around living creatures, sample the Earth's magnetic
field, or test the composition of mineral oils in wells. The key to the advance is developing an NMR...
Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive
...d love-related neurophysiological systems inside a magnetic
resonance imaging machine. They detected quantifia...utism link Aron reported that, using functional magnetic
resonance imaging (fMRI) and other measurements, he and his colleagues found support for their two m...
Brain networks change according to cognitive task
...sing a newly released method to analyze functional magnetic
resonance imaging (fMRI), Northwestern University researchers have demonstrated that the interconnections between different parts of the brain are dynamic and not static. This and other findings answer longstanding debates about how brain networks op...
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