Tag: "magnetic" at biology news
Core Spins Faster Than Earth, Scientists Find
...er model simulating the dynamo thatcreates Earth's magnetic
field. The model, created by Gary Glatzmaierof the... Earth's liquid core generatethe planet's powerful magnetic
field, which in turn drives theinner core in the way that can now be observed. Abouta billion amps o...
Newly Discovered Bacteria Produce Magnetic Material
...overed bacteria produce tiny particles of magnetic
iron oxides, as shown under a scanningelectron mic..., Va., have aninteresting capability. They produce magnetic
material. We isolatedmicron-sized bacteria and found that these microorganisms producednanometer-sca...
Six-Year Drilling Project to Uncover One Million Years of Earth History
...also retrieve a detailed record of how the Earth's magnetic
field has changed in the past, and test the extraordinary but widely held view that Hawaii exists because of a fountain of hot rock material coming from 3,000 kilometers deep in the Earth." The project will produce a continuous 14,500-foot se...
Antarctic Science Season Gears Up With Searches for Meteorites, Neutrinos, and New Life Forms
... of the ice sheet, while measuring the gravity and magnetic
signature, a clue to volcanism of the rock beneath...-long light, imaged sunspots and mapped associated magnetic
fields which are believed to cause solar flares. The balloon was cut down above the Adelie Coast, 1...
Moving DNA Molecules With Magnetic Tweezers
Denis Wirtz switches on his magnetic
tweezers, grabs hold of asingle DNA molecule and u... directly into diseasedcells. "You could use these magnetic
tweezers to transport a vesicle orfluid-filled cell containing a drug," Wirtz explains. "You couldus...
Purdue Study Aims To Boost MRI Capabilities
... the combination of high-powered and fast-changing magnetic
fields has potential to cause discomfort in patien...ght years. Much of their early work focused on the magnetic
field's effects on the heart and other organs. Their work played a role in the introduction of new "...
Scientists Use Magnetic Field As Alternative To Space-Based Zero Gravity
...og eggs. Brown University scientists have used a magnetic
field to levitate embryosof a small frog. The mane...wn scientists think that use of a technique called magnetic
fieldgradient levitation (MFGL) could allow researchers on Earth to performexperiments in simulated ...
Fossils Show British Columbia Was Once 2,000 Miles South
...a,mineral crystals became magnetized, freezing the magnetic
field. If the rockshad been formed at the equator,... vertical. Thus ifrocks in British Columbia show a magnetic
field slightly tilted from thehorizontal, the implication is they were formed far to the south. ...
Early Career Development Grants Foster Faculty Research And Education
...te systems will contain morethan 1000 gigabytes of magnetic
hard disk space to store World Wide Web data, entertainment video,home movies, encyclopedias and other databases. The research seeks solutions to the technical challenges of performing automated backup to protect the storage system from disk failure...
Similarities Found In Human, Chimp Brains; Columbia, Mount Sinai, NIH Scientists Find Region That Controls Language Identical In Both Species
...received wisdom might not be true when heconducted magnetic
resonance imaging studies of chimpanzee brains in an NIHstudy and noticed the discrepancy between the brain hemispheres. The authors of the paper proposed several possible interpretations ofthe experimental result, in addition to the possibl...
3-D Structure Of HIV Components May Pave The Way For New Anti-AIDS Drugs
...omplex, determined using a techniquecalled nuclear magnetic
resonance (NMR) spectroscopy, is published in theJanuary 16 issue of Science. "The structure is significant for two main reasons. First, it providesmolecular insights into how the protein recognizes and binds to [a specific siteon viral] RNA. Secon...
Hurdle In Ulcer Vaccine Development Cleared
...esearchers ground up the tagged H. pyloriand added magnetic
beads that had been coated with avidin, a protein that bindstenaciously to biotin. The avidin attracted the biotin out of the mixture alongwith the sought-after protein. After pulling out the beads with a magnet, theresearchers removed the bacterial ...
Novel AIDS-Directed Technology: Approach Permits Optimization Of Existing Drug Therapies And Targeted, Patient-Specific Treatment
...tation. It manufactures nearly the entirerange of magnetic
sector mass spectrometers, as well as other analyticalinstruments and software packages. Using its expertise in analyticalinstrumentation, the Company is engaged in two research and development programsto expand its product base. The first program,...
Argonne Researchers Develops Simple, Inexpensive Method For Cleaning Industrial Waste Streams
...w approach, which Argonne has patented, uses small magnetic
particleswith a chemical coating, a solvent contai...oating extracts thelow concentration of metal. The magnetic
particles, and their metal baggage, areremoved from the solution with magnets, Nuez said. The meta...
3-D Structure of Human Tumor-Suppressor Protein Produced
... of the journal Molecular Cell . Theyused nuclear magnetic
resonance (NMR) spectroscopy to measure the locati...#146;sstructure. NMR spectroscopy uses a powerful magnetic
field to make molecular measurements.The method enables the researchers to study the structure of th...
New Imaging Technique Pinpoints Dead Heart Muscle
...muscle. The new test worksusing commonly available magnetic
resonance imaging scanners, which will makethe tec...entifies and measures creatineconcentrations using magnetic
resonance spectroscopy (MRS) in different regionsof the heart. The image of each region to be examin...
Jefferson Researchers Use Gene Therapy To Treat Rare, Inherited Brain Disease
...adelphia to monitor myelin and enzyme levels using magnetic
resonance spectroscopy and magnetic
resonance imaging. "We'll also look at behavioral aspects of the children--a whole battery of tests ...
American Heart Association Journal Report: Gene Therapy Findings Updated: Treatment Used In Patients With Blocked Leg Vessels
...produces animage that shows blood flow in vessels; magnetic
resonance angiography;measurement of the ankle-bra...eated legs,improved blood flow was demonstrated by magnetic
resonance imaging. Angiogramsshowed evidence of newly visible vessels in seven of the 10 treated li...
Echocardiography Is Effective In Measuring Microvascular Damage From Heart Attacks
Ultrasound waves may be as effective as magnetic
resonance imaging atdetecting small blood vessel blockage after a heart attack, according toresearchers at Johns Hopkins. The Hopkins team found that contrast echocardiography (CE) -- using acontrast medium with ultrasound waves to study hear...
New Sunspot Cycle To Be Bigger Than Average
...e next minimum in about11 years. Because the solar magnetic
fields reverse at the peakof each 11-year cycle, solar activity cycle actually spans a 22-year"Hale cycle." Cycle 23 is the last half of the currentHale cycle (composed of Cycles 22 and 23) that began in 1986. "The consensus [among solar physicists]...
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