Tag: "magnetic" at biology news
Study Of Sulfides In Bacteria Casts Doubts On Evidence Of Life In Martian Meteorite ALH84001
...rals in twodifferent bacteria known for generating magnetic
compounds but not other iron sulfides normally fou... iron sulfide, whichthen naturally converts to the magnetic
greigite. It also suggests that this process may actually begin withcubic iron sulfide, which is uns...
High-Pressure Chambers Could Prevent Paralysis After Spinal Cord Injury
...n't tell," hesaid. Recent improvements in magnetic
resonance imaging (MRI), however, nowmake it possible to determine which spinal cord casualties should be treatedwith hyperbaric oxygen therapy. Unfortunately, James said, "most trauma centers do not have hyperbaricchambers, which is a traged...
Press Events At Spring Meeting
...0:30 AM. The geodynamo: how does Earth produce its magnetic
field? Pressconference. Recent advances on many ...atic images of the Sun, including newinsights into magnetic
reconnection, a fundamental process that governs manydynamic solar phenomena. All data from TRACE ar...
DFG To Set Up 32 New Postgraduate Research Groups - First "Virtual Research Group"
... polymer-fixated reaction centres'; Tbingen'Modern magnetic
resonance methods in materials research'; Stuttgart'Conservation laws in modelling and simulating marine, atmospheric and technical systems'; University of Hamburg...
Clusters, Computers And The Human Brain
...own physical phenomenon that serves as a basis of magnetic
recording: when a granular magnet, such as a magnetic
tape, is warm, its grains form a disorganized mess. But when the magnet is cooled down, the grains ...
DFG To Set Up 14 New Collaborative Research Centres
...larinteraction as well as mechanical, electric and magnetic
fields. One of the goals of thisexercise is to produce thin, organic, high-purity films with a defined order to gain a betterunderstanding of the electronic and optical processes occurring in these materials by definingthe relationship between morpho...
Increased Interest In "Smart" Materials Is Reported
..., incidentphotons, small molecules, an electric or magnetic
field, hydrostatic pressure,or the like. The useful effects produced may include changes in color, volume,stress distribution, and index of refraction. A nonprofit organization with a membership of more than 155,000 chemists andchemical engineers a...
Feature: Biomaterials Are Transforming Medicine
...ammed "pulses," or on demand. Using anoscillating magnetic
field, a wristwatch-like device could, for example...ose of insulin just before a diabetic's meal. The magnetic
field wouldrelease the drug by squeezing drug-containing pores at a microscopic level. Trials using ...
Clever Chemistry Protects Beetle Babies
...es of analytical investigations (including nuclear magnetic
resonancespectroscopy and high-pressure liquid chromatography) performed by Frank C.Schröder, a postdoctoral researcher at Meinwald's laboratory in the CornellDepartment of Chemistry and Chemical Biology, revealed the unprecedentedcomplexity o...
Report On Electrical And Magnetic Fields Released; Public Invited To Comment At Regional Meetings
... concluding, by a divided vote, thatelectrical and magnetic
fields around power lines, home wiring, home appli...l summary are also available via theelectrical and magnetic
fields button on the NIEHS web site at http://www.niehs.nih.gov . "Public and scien...
National Science Foundation Is Taking Small Business Into A New Phase Of Innovation
...ized device to measure the properties of planetary magnetic
fields; Pericle Communications Company, for their ...pe laser magnetometerdesigned to measure planetary magnetic
fields from an orbiting spacecraft. Theself-calibrating laser magnetometer will provide researchers...
Scientists Show How Defects Can Improve Technology In Science Magazine's Special Issue On Materials Science
...gnetic semiconductors, like silicon, with those of magnetic
materials(used to store massive amounts of informa...agnetized a non-magnetic semiconductor by adding a magnetic
element(technically an "impurity") to the material. Shuji Nakamura describes breakthrough...
Gene Mutation Found For Common Form Of Mental Retardation
...ses physicaldefects in the neuron of any kind. The magnetic
resonance image of the brain ofa person carrying the mutant PAK3 appears normal. "Everything is where it shouldbe," Walsh says, but he adds that such gross images would not reveal defects incell shape. In general, the appearance of males with the MRX...
Birds Of A Feather: The Physics Of Flocks
...material a strongability to attract or repel other magnetic
materials. Permanent magnets, also known as "ferro..., such as seasonaltemperature and even the Earth's magnetic
field (some birds have magneticmaterial in the brain which help them to navigate using the Earth's m...
NASA Using Space Incubator To Understand Breast Cancer
...on the surface from all radiation, and the Earth's magnetic
field shields space crews in low orbits from all b...t the most energetic particles. But outside the magnetic
field, the exposure and risk are greater. The exact amount varies with the length of the trip, the t...
Possible Human Ancestors In Spain 780,000 Years Ago
...nd. In the early 1900s,scientists discovered that magnetic
minerals in rocks work like tiny compassneedles---pointing toward the location of the Earth's magnetic
field at the timethe rock was created. Today Earth's magnetic
field lies to the north, but it wasn'...
Inherited Depression Linked To Shortage Of Cells In Brain Region
...al cortex, also was smaller than in healthypeople, magnetic
resonance images revealed. "Dost and I wanted to identify the cellular basis for this difference insize," Price explains. Using samples from the Harvard Brain Tissue Resource Center, Öngürcompared the number of cells in the su...
New Form Of Inherited Dwarfism In Large Pakistani Family Caused By Genetic Mutation In A Pituitary Receptor
...ical School for further evaluation, which included magnetic
resonance imagingof the pituitary, bone density testing and additional hormone level assessments.Results of the tests are forthcoming. Dwarfism of Sindh, as this syndrome is now called, is the human geneticcounterpart to the little (lit/lit) ...
Quicker Implementation Of Research Results
... study the behaviour of electroconductivefluids in magnetic
fields as well as surface tension-driven flows. Wi...getransfer as well as changes in ferroelectric and magnetic
behaviour. Thisincludes optoelectronic semiconductor structures, micromechanical actuators andsensor...
Fall Meeting: Preliminary Press Conference Schedule
...elt: Forecasting space weather The May 1998 solar magnetic
storm, the largest space weather phenomenon of thecurrent solar cycle, produced an additional temporary radiation belt andionospheric electrical currents 300-400 percent greater than usual. It was alsodiscovered that Van Allen Belts are natural parti...
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