Tag: "magnetic" at biology news

Researchers successfully deliver drugs to the primate brainstem

...molecule to the primate brainstem. They then used magnetic resonance imaging (MRI) to track the the tracer's ...r found in children. The animals were imaged in a magnetic resonance scanner during the infusion and 1, 2, 4, and 7 days after infusion. The imaging studies sh...

From moon rocks to space food: UH research spans 40 years

... new class of compact medical instruments, such as magnetic resonance imaging systems, suitable for use on the International Space Station and in future manned missions to Mars. The proposed instrument would also be suitable as a routine laboratory or clinical device in earth-bound clinics and hospitals. htt...

Kurt Wthrich of The Scripps Research Institute wins 2002 Nobel Prize in Chemistry

...mistry today for applying the technique of nuclear magnetic resonance (NMR) to solving the structures of biolo...istry specifically "for his development of nuclear magnetic resonance spectroscopy for determining the three-dimensional structure of biological macromolecules ...

Visualising potential outcome of cancer treatment

...reliminary results in mice of the potential use of magnetic resonance imaging (MRI) technology at the European Society for Medical Oncology Congress in Nice, France. The technique is called 'Diffusion-Weighted Magnetic Resonance Imaging' DWMRI. It is sensitive to the different characteristics related to the...

Biomedical scientist testing nanoparticles as early cancer detection agent

...particle probes can be used as contrast markers in magnetic resonance imaging (MRI), in positron emission tomography (PET) for in-vivo molecular imaging, or they can be used as fluorescent tracers in optical microscopy. These tags can trace specific proteins in cells for cancer diagnosis or monitor the effec...

Pittsburgh researchers target genetic, environmental threats to maternal and fetal health

...se non-invasive diagnostic imaging scans including magnetic resonance imaging (MRI), positron emission tomography (PET) and computed tomography (CT). Through use of unique genetic markers and imaging, researchers should be able to track development at the cellular level, mapping the effects of genetic variant...

Mild aerobic exercise no protection from osteoporosis

...ty in the total skeleton, lower spine and hip, and magnetic resonance imaging to calculate abdominal fat. They weighed each participant and had each do a treadmill exercise test and a series of weight-training exercises to measure aerobic fitness and muscle strength. In addition, the individuals completed a...

The brain gets the big picture

...iversity of Minnesota, TwinCities, used functional magnetic resonance imaging (fMRI) tosee which parts of the brain were active as subjects lookedat different patterns and shapes. Current theories hold that a lower area of the brain calledthe primary visual cortex responds to simple features such asedges and ...

McLean Hospital and Repligen announce results of brain imaging study of secretin

...he neurological activity of secretin by functional magnetic resonance imaging (fMRI). The results demonstrate for the first time in humans, that secretin is active in the central nervous system and that it potentiates activity in the amygdala, a region of the brain involved in social integration and implicat...

New tool for studying animal models of neurological and psychiatric diseases

...ossible explanation for their results by comparing magnetic resonance imaging (MRI) brain scans of the two strains, which showed no differences. They also confirmed the difference in D2 receptor levels between "deficient" and normal mice with traditional autoradiography, where tissue samples are labeled with ...

INEEL competes successfully for DOE EMSP funding

...m hopes to adapt a measurement technique that uses magnetic fields and pulsed radio waves to locate solvents (degreasers) in the subsurface. INEEL's new Geocentrifuge Research Laboratory will be put to use to study the theory that soil moisture content controls the chemical reactivity of contaminants in the v...

Rutgers-led consortium awarded $6.5 million by NIH for genomic research

...rrently used are X-ray crystallography and nuclear magnetic resonance spectroscopy (NMR), both of which provide 3-D representations of protein structures. The development of NMR for analyzing protein structure brought a 2002 Nobel Prize in chemistry to Swiss chemist Kurt Wuethrich and two colleagues. Wuethr...

Imaging study provides new information on how the brain processes sounds of different tones

...rain function, such as evoked potential and evoked magnetic field measurements. A limitation of this line of ...ration cannot always be reliably localized. Evoked magnetic field examinations of repetition rate are further limited in that they provide information mainly co...

Non-invasive imaging technique detects plaques beginning to form in vessels

...f gadolinium, which shows up as a bright spot on a magnetic resonance image (MRI). Other carriers for gadolinium hold only a few such atoms at a time, and therefore result in less bright images. In order to ensure that gadolinium highlighted only new capillaries, the team also packed the nanoparticle with mol...

Blasting antibodies with lasers provides direct way of measuring their flexibilities

...ues that allow them to "look" at proteins--nuclear magnetic resonance (NMR) and X-ray crystallography--cannot be used. X-ray crystallography provides only average structures, which provide no direct information on a protein's flexibility. NMR can, in principle, be used to measure a protein's flexibility, but...

Biologists raising baby loggerhead turtles for conservation find disturbing gender trend

...ng loggerhead turtles can sense and use the global magnetic field, he added. "So, based on that work, when we plop them into the Gulf Stream we think they'll be able to access the latitude and longitude," Crowder said. If additional gender results continue to contradict expectations, the scientists will be se...

Stretch of I-40 part of ORNL, UT environmental lab initiative

...rchers will use roadside mounted panels to perform magnetic probing and sensing. This will enable them to calculate emissions for an individual truck on a gram-per-mile basis. "By performing what's called a sound signature analysis, we'll be able to determine each truck's operating condition, including engine...

Two Max Planck researchers recieve the Louis-Jeantet Prize for Medicine 2003

...nvasive technique that detects tiny changes in the magnetic field associated with brain activity. Nikos K. Log...l pulses that are accompanied, as any currents, by magnetic fields. Although these fields are extremely weak, they can be recorded outside the head by supercond...

New antibody library speeds search for new detection tools

...wo types of cell sorters high-throughput parallel magnetic cell sorting and high-resolution linear flow cytometric cell sorting to isolate specific antibodies very quickly. Wittrup originally developed the yeast surface display as a way to improve the binding of antibodies to chemicals while working at the ...

Human gene affects memory

...mally turns off hippocampus activity. Functional magnetic resonance imaging (fMRI) scans revealed that those with one copy of "met" showed a pattern of activation along the sides of the hippocampus, in contrast to lack of activation among those with two copies of "val." Next, an MRI scanner was used to meas...

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