Tag: "neutron" at biology news

From Corn Rootworms To Art, Cornell's Reactor Is At The Core

...tworms in soil around it. The technique is called neutron radiography, and professors from art historians an... that X-rays cannot produce. It is the first time neutron radiography has been used to study insects. "X-rays pass through the rootworms without attenuation. ...

Antarctic Science Season Gears Up With Searches for Meteorites, Neutrinos, and New Life Forms

...ive galactic nuclei, supernovae remnants, pulsars, neutron stars, or from elsewhere in or outside the galaxy. Such studies are at the forefront of the new field of neutrino astronomy. The array already offers some provocative results. From a sample during the first nine months of observations, AM...

STS-89 Will Carry Five Science Payloads From NASA/Marshall

...low the first protein crystalstudies by even finer neutron diffraction. Returning on STS-89 willbe the Interferometer Protein Crystal GrowthApparatus (IPCG) , a device placed aboard Mir by the STS-86 mission.IPCG uses a compact optical system to show how the concentrations vary insidea solution as a protei...

Very Fruitful Collaboration Between French And German Scientists Yields Unusual Insights Into The Structure Of Membrane Proteins

...te of Structural Biology in Grenoble, France, used neutron beams to expand current knowledge on ... proton pump bacteriorhodopsin. Using neutron spectroscopy and diffraction experiments, which are sensitive to isotope labels, areas ...

Radiating relief: Researcher combats stubborn arthritis with neutrons

...cay kills the synovium and vanishes as soon as the neutron beam is turned off, since boron itself is not radi...han 10 years INEEL has conducted research on boron neutron capture therapy, a treatment for brain tumors that exploits the same interaction between boron and n...

The ultimate pocket protector--radiation detection made easy

... in other directions. "It's harder to detect the neutron particles because they don't interact with matter ...ecause the INEEL dosimeter provides both gamma and neutron data in real time with one instrument. The dosimeter eliminates the need to carry two instruments, ...

NTP plans to look at common viruses, radiation, cooking by-products for new carcinogen report

...pons. Neutrons, which may affect patients getting neutron radiotherapy and the passengers and crew of aircraft, which are naturally bombarded by the particle. Naphthalene, which is used in making many industrial chemicals, and as an ingredient in some moth balls and toilet bowl deodorants. Nitrobenzene, w...

Study: King Midas' feast offered golden opportunity for fungi

...an element that contain slight variations in their neutron counts but have the same number of protons. The test used by Filley and colleagues, which included Marilyn Fogel of the Carnegie Institution of Washington, was designed to detect trace amounts of two forms of nitrogen: 14-N, which accounts for most o...

PNNL science, technology help keep America safe

...rs offer substantial flexibility over conventional neutron detection technologies, most of which use rigid helium-filled tubes. PUMAs glass fibers contain lithium-6 atoms and cerium ions that detect the presence of radionuclides. The neutrons react with the lithium isotope to leave an ionization trail thro...

Chemical evidence proves the old adage, Birds of a feather flock together

... A small percentage of carbon atoms carry an extra neutron and therefore are known as carbon 13. Hydrogen 1 (the most common hydrogen isotope) only has one proton and no neutrons, but a rarer form deuterium contains both a proton and neutron. When Chamberlain and his co-workers analyzed warbler feathers c...

How cold! New partnership to use chilled neutrons

....Yet, for many challenges in biology and medicine, neutron probes offer the onlyrealistic hope for answers." ...s that ward off harmfulmicroorganisms. To ease the neutron crunch forbiologists, NIST offered to open a new port in a beamline at its NCNR. Whitethen organized...

Fusion in a flash?

...illion electron volts, which is the characteristic neutron energy associated with deuterium-deuterium fusion....n non-deuterated (normal) acetone, and observed no neutron emission or tritium production in these experiments. Currently, the level of neutron emissions with ...

Hiroshima porcelain pieces provide insight into exposure levels

...pped on Hiroshima on August 6, 1945. The amount of neutron fluence, for example, has been calculated from the site to establish what might be a safe level of exposure for humans. (Neutron fluence is the number of neutrons from the blast found per square centimeter.) The advent of nuclear accidents such as Th...

Physics tip sheet #13 May 15, 2002

.... Ebisuzaki arXiv preprint server The formation of neutron stars from collapsing supernovae are some of the most dramatic processes in stellar evolution. In a neutron star, high densities cause matter to form a uniform liquid but just before that happens, nuclei form...

Reactor reveals hidden life of rocks

... at the University of California, Davis, are using neutron beams from a nuclear reactor to see inside rocks. ...er and Lesher have already used the method, called neutron tomography, to find bacteria living inside rocks collected in the Mars-like environment of Antarctic...

Newer methods added, scope expanded in new Methods of Soil Analysis Book

...ater measurement methods from oven drying, through neutron meters and tensiometers, to EM and NMR techniques. There are similarly comprehensive sections on water flow, solute transport (single and multiple, miscible and imiscible), air permeability, thermal capacity and conductivity, and soil erosion. "This...

Purdue researchers discover basis for biological clock

...f deuterium, the isotope of hydrogen with an extra neutron in its nucleus -- could alter the clock to run on a 27-hour day. "Lots of heavy water was available back then, as it was needed for nuclear reactors," he said. "Investigators discovered that if you fed cells heavy water, they would operate on a 27-h...

ORNL, Georgia's Isotron develop promising new cancer treatment

...Laboratory. The advantage of the treatment, called neutron brachytherapy, is that physicians can deliver a hi...e head, neck and mouth. The progress achieved with neutron brachytherapy will enable unprecedented cancer treatment and will help physicians treat nearly 20 di...

Argonne research offers clues to Alzheimer's plaques

...s well as its self-assembly mechanism. Small-angle neutron scattering at Argonne's Intense Pulsed Neutron Sou...dius and the molecular weight from the small-angle neutron scattering analyses showed that six peptide ribbons are laminated together, 10 Angstroms apart, by w...

Physics tip sheet #36 - July 30, 2003

...hemical formula for water is H2O, a process called neutron Compton scattering (NCS) showed the H:O ratio is more like 1.5:1. But was that result due to some quirk of the measurement technique or is the ratio really not 2:1? Researchers have now extended the NCS measurements in a crucial way, demonstrating fo...

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(Date:4/14/2014)... treat children with uncomplicated acute appendicitis is a reasonable ... fewer missed school days, according to a pilot study. ... Hospital and published online April 12 in the ... the first prospective study on nonoperative management of acute ... , Researchers enrolled 77 patients age 7 to 17 ...
(Date:4/14/2014)... 2014, Perth, Australia. Drug discovery company Proteomics International ... of a companion diagnostic (CDx) test with the ... The research team authenticated the panel of biomarkers ... samples. Seven biomarkers were validated at high stringency ... The mass spectrometry data was then cross-validated using ...
(Date:4/14/2014)... 2014) When it comes to the cost and ... Patients get the best care when they are treated ... extensive experience in their current job, according to a ... and Columbia Business School. The study was published in ... Applied Economics . , The review of more ...
(Date:4/13/2014)... STANFORD, Calif. A low-cost empowerment program for ... and sexual harassment of these girls, who live ... and are frequently attacked, a large new study ... Stanford University School of Medicine, Lucile Packard Children,s ... No Worldwide, validated the program,s effectiveness in combating ...
(Date:4/11/2014)... the processes that control brain cell production could pave ... brain-related disorders. , Scientists have gained new understanding of ... how and when nerve and brain cells are formed ... and keeps it healthy. Their findings could help explain ... which is a fundamental characteristic of many diseases including ...
Breaking Medicine News(10 mins):Health News:Antibiotics alone are a successful treatment for uncomplicated acute appendicitis in kids 2Health News:Antibiotics alone are a successful treatment for uncomplicated acute appendicitis in kids 3Health News:Longer nurse tenure on hospital units leads to higher quality care 2Health News:Empowerment program greatly decreases incidence of rape, Stanford/Packard-led study finds 2Health News:Empowerment program greatly decreases incidence of rape, Stanford/Packard-led study finds 3Health News:Empowerment program greatly decreases incidence of rape, Stanford/Packard-led study finds 4
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