Tag: "magnetic" at biology news
From sound analysis to nicotine addiction
...stadt) Materials which can change shape or size in magnetic
or electrical fields are used in applications such...ure and shape of solids through externally applied magnetic
fields" will bring material scientists, engineers, mathematicians, physicists and chemists together ...
Scientists create digital bacteria to forge advances in biomedical research
...simulations to understand how the sun reverses its magnetic
field every 11 years. Each digital cell in AgentCell is a virtual Escherichia coli, a single-celled bacterium, which is equipped with all the virtual components necessary to search for food. These digital E. coli contain their own chemotaxis system,...
Unweaving amyloid fibers to solve prion puzzles
...roteins, such as X-ray crystallography and nuclear magnetic
resonance imaging, don't work with fibrous structures such as amyloids. And scientists depend on these high resolution images of molecules in order to study their function. Now, researchers have found a way to work around these limitations, illumin...
Holographic movies show promise for medical, military applications
...maging applications, such as sonograms, CAT scans, magnetic
resonance imaging, radar, sonar or computer-aided drafting. "This technology is potentially powerful for medical applications," Dr. Garner said. "We could easily take data from existing 3-D imaging technologies and feed that into our computer algor...
Anthrax inhibitors identified by Burnham team
... on assays conducted with highly sensitive nuclear magnetic
resonance ("NMR") techniques developed in Dr. Pellecchia's laboratory, the scientists were able to identify a scaffold that served as a template for designing a preferred structure for small-molecule inhibitors of LF. Lead compounds were synthesized...
Munich researchers discover exciting possible new application of PET imaging for ovarian cancer
...le of chemotherapy. "Computed tomography (CT) and magnetic
resonance imaging (MRI) are typically used to evaluate response to chemotherapy," explained Avril. "The decrease in tumor size is the most important criterion to assess if chemotherapy was successful. Both imaging modalities, CT and MRI, have certain...
Brain scan study of smokers reveals signature of craving
...hers scanned the subjects' brains using functional magnetic
resonance imaging, in which harmless magnetic
fields and radio waves are used to produce images depicting blood flow in brain regions. That blood ...
A 'dimmer switch' for genes
...flexible and changing." The team used a nuclear magnetic
resonance, or NMR, which allows scientists to observe how the atoms of a molecule behave inside a magnetic
field. The Graves team found that unstructured regions of the Ets-1 protein were affecting the struc...
Rutgers to lead $52.7 million protein research program
...using methods of X-ray crystallography and nuclear magnetic
resonance (NMR) spectroscopy, with the full PSI producing between 4,000 and 5,000 over the next five years. "These structures will have tremendous value in understanding basic biology, and in developing the next generation of diagnostics and medicine...
Insight into cell metabolism will help interpret PETs, MRIs
... emission tomography (PET) scans and a specialized magnetic
resonance imaging (MRI) test. The discovery uncov...as PET and blood oxygen level dependent functional magnetic
resonance imaging (BOLD-fMRI), MPLSM can simultaneously show how the orientation of NADH molecules c...
NIH funds eleven High-End Instrumentation grants
...functional imaging systems, macromolecular nuclear magnetic
resonance spectrometers, high-resolution mass spectrometers, electron microscopes, and supercomputers. Imaging technology provides functional, biochemical and physiological information from intact biological systems including humans. Nuclear Magnetic...
Good connections are everything
...ith a reduced spatial resolution. Using functional magnetic
resonance imaging, for example, scientists can obt...tions attached it. It has been recently found from magnetic
resonance imaging that the functional networks of neuron clusters in the human brain are characteriz...
World-record magnet to pull in scientific breakthroughs
...horizons of scientific investigation using nuclear magnetic
resonance (NMR) and magnetic
resonance imaging (MRI) technologies. At full strength, the magnet has a magnetic
field of 21 teslas...
Gene's mutations found to cause life-threatening aortic disease
...y checked with advanced imaging techniques such as magnetic
resonance or echocardiography. Preventive surgical repair should be undertaken when the ascending aorta's diameter approaches 5 centimeters, the study recommends. Milewicz had earlier mapped this genetic variation to a portion of chromosome 3. In t...
Blink, and the brain misses it
...performed a type of brain scan known as functional magnetic
resonance imaging and could thus measure whether the act of blinking--independently of any change in light normally caused by eyelid closure--would influence the level of light-activated brain activity. The UCL scientists found that when volunteers w...
Combination therapy leads to partial recovery from spinal cord injury in rats
...sed an electrical current test in which they put a magnetic
stimulator on the skull and measured whether the resulting electrical current was transmitted to a muscle in one of the hind legs. Most of the rats treated with the combination of precursor cells and gene therapy improved significantly on both tes...
PET can identify effectiveness of chemotherapy early in high-risk breast cancer patients
...ging procedures, such as computed tomography (CT), magnetic
resonance imaging (MRI), plain film radiography and ultrasound, do not reliably predict therapy response early in the course of treatment, explained the co-author of "Early Prediction of Response to Chemotherapy in Metastatic Breast Cancer Using Sequ...
RPE meets EPR
...n paramagnetic resonance (EPR). EPR is similar to magnetic
resonance imaging except that it measures the spin of electrons rather than of protons. Because photochemical reactions happen extremely fast, the Norris laboratory has one of the world's few high-speed EPR spectroscopy devices, able to record acti...
Researchers reveal secret of key protein in brain and heart function
...A receptors. The team used high-resolution nuclear magnetic
resonance spectroscopy to solve the structure of PDZ1, as well as a small portion of the receptor to which it binds. Mierke said the group is now developing a molecule that can inhibit PDZ1 as well as PDZ2, the first boxcar on the multi-domain protei...
Ecology must be part of research on renewable energy
... and rays, and marine mammals that use the Earth's magnetic
field to navigate." However, ORED could also represent an environmental enhancement by increasing the opportunity for benthic species, enhancing survival and growth, creating new food opportunities and refuge for juveniles, and recycling of local ene...
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