Tag: "particle" at biology news
Carnegie Mellon's Peter Adams receives EPA research grant
...ns are thought to die prematurely each year due to particle
exposure and almost 70 million Americans live in areas that violate the federal standard. That standard was strengthened in September after scientists, armed with years of studies showing that these particles can damage the lungs and heart, advised t...
Computer graphics spills from milk to medicine
...f electromagnetic waves by a homogenous, spherical particle
embedded in a non-absorbing medium. The Lorenz-Mie...lso visualize what a medium would look like if one particle
type were missing. Having knowledge about the visual effect caused by each type of particle
National Ecological Observatory Network featured at ESA/SER Joint International Conference
...hich has previously funded large telescope arrays, particle
accelerators, and research vessels. It is designed to gather data for at least 30 years and to serve as a US terrestrial contribution to the proposed Global Earth Observation System of Systems. NEON will support the first continental-scale comparis...
Universe's stringy birth revealed by young Czech scientist in EURYI winning project
... to be embarrassed by the discovery of yet another particle
type. It's a sort of field theory for the infinit...s of a string, each of them representing different particle
species, Schnabl said. As Schnabl observed, string field theory, by explaining also how quantum mech...
Where broken DNA is repaired
... RIF occur along straight lines, as expected for a particle
track, but are not randomly distributed along the lines. "Even though we have the right foci frequency along a track, many foci appear to repulse each other within the first 30 minutes after irradiation" a suggestion that they might be moving to spe...
Particle emissions from laser printers might pose health concern
...ssified 17 out of 62 printers in the study as high particle
emitters because they released such elevated quant...n experimental chamber at a rate comparable to the particle
emissions from cigarette smoking, the report stated. Thirty-seven of the 62 printers, on the other...
A stepwise retreat: How immune cells catch pathogens
...he cell surface and upon contact with a suspicious particle
they attach to it and immediately retract to pull the particle
towards the cell body, says Holger Kress who carried out the research at EMBL and is now working at ...
Homestake strikes gold again
..., including low background physics experiments and particle
and nuclear physics experiments that require very large detectors, said Lesko. The site can simultaneously host multidisciplinary deep sub-surface studies in geosciences, geoengineering and microbiology. The Homestake proposal calls for two major d...
UCSB researchers show how to make polymeric micro- and nanoparticles
...re essential to understanding the role of shape in particle
function. Their research is published in todays online edition of the Proceedings of the National Academy of Sciences. Polymeric micro- and nanoparticles are used in a wide range of applications including medical imaging, drug delivery, and beauty...
Invisible gases form most organic haze in urban, rural areas
..." The scientists believe the extended source of particle
pollution is reactive, colorless gases called Vola...if we directly targeted VOC emissions and not just particle
emissions," said Zhang. "Until we understand the breakdown between human-caused and natural VOC emi...
Nanoparticles hitchhike on red blood cells: a potential new method for drug delivery
...easible. Mitragotri says this mode of prolonging particle
circulation has significant implications in drug delivery, potentially leading to new treatments for a broad variety of conditions such as cancer, blood clots and heart disease. Dr. Steven R. Goodman, Editor-in-Chief of the journal, said this study d...
Nanotech hitchhikers in blood
...easible. Mitragotri says this mode of prolonging particle
circulation has significant implications in drug delivery, potentially leading to new treatments for a broad variety of conditions such as cancer, blood clots and heart disease....
Louisiana Tech researchers help find new sub-atomic particle
...Discovery is verification of the Standard Model of particle
physics." Details of the discovery will be prese...The DZero experiment reported the discovery of the particle
in a paper submitted June 12 to Physical Review Letters, the Journal of the American Physical Societ...
Candidate research sites selected for the National Ecological Observatory Network
...ly supported the construction of research vessels, particle
accelerators, and large telescope arrays. Our telescope points everywhere, said Dr. David Schimel, CEO of NEON. The Observatory will consist of distributed sensor networks and experiments, linked by advanced cyberinfrastructure to record and archiv...
Michael R. Zalutsky receives SNM's 2007 Paul C. Aebersold Award
...ing significant advances in other aspects of alpha particle
radiotherapy. "I am honored to receive this prestigious award," said Zalutsky who has served as a professor of radiology since 1990 and professor of biomedical engineering since 1999. "I think its wonderful that the Society recognizes our type of w...
Jet lag: It's all about chemical reactions in cells
...ing molecule. The chromophore captures a photon or particle
of light, and the captured energy from the light triggers a series of interactions that ultimately lead to conformational changes on the surface of the vivid protein. These structural changes on the protein's surface kick off a cascade of events that...
Nanocomposite labeled cancer cells can be targeted and destroyed using lasers
A nanocomposite particle
can be constructed so that it has a mix of properties that would not otherwise happen in nature. By combining an organic matrix with metallic clusters that can absorb light, it is possible to incorporate such particles into cells and then destroy tho...
Iowa State scientists demonstrate first use of nanotechnology to enter plant cells
... They decided instead to modify the surface of the particle
with a chemical coating. "The team found a chemi...e chemists made another clever modification on the particle
surface. They synthesized even smaller gold particles to cap the nanoparticles. These "golden gates"...
Getting to the core of an emergent public health threat
...s to help assemble the viral genome into the virus particle
that can readily infect the body. The nucleocapsid protein has been found to circumvent type I interferons, natural proteins that help mount the bodys initial immune response against viruses. Hogue and colleagues plan to focus their efforts on det...
Manchester to spearhead 8.3 million particle physics project
...ding an 8.3 million drive to develop a new type of particle
accelerator, which could lead to more effective ca...ow the NS-FFAG to be used as a new type of charged particle
therapy machine for treating cancer. The reduced size, increased reliability and flexibility of such...
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