Tag: "scatter" at biology news

Structure of new DNA enzyme family member found

...lains, "Optical transform is what happens when you scatter light from a microscope onto a specimen, but until you have an objective lens that refocuses that light you can't actually see an image." Structural protein chemists don't have the equivalent of a microscope's objective lens, so they "refocus" the im...

Identifying the path to infection

...bards the sample with high-energy electrons, which scatter off the atoms in the crystal. A lens inside the mi... to large angles. This will allow the electrons to scatter off and produce an image of the protein channel's other sides. ...

JCI table of contents, November 15 2004

...*********** Inactive form of scatter factor protein found to suppress tumor growth and spread Scatter factor (SF) is a growth factor that controls the proliferation and survival of many tissues by promoting invasive growth in both normal and disease-related biological processes. Produc...

New system reduces risk of burns during interventional X-rays

...ualization of the distribution and amount of X-ray scatter throughout the room, providing a way to gauge exposure for the physician and other health-care personnel who may be present. The development effort for the computer graphic display was led by co-investigator Kevin Chugh, Ph.D., formerly a res...

The secret life of acid dust

...r and retain the moisture. These wet particles can scatter and absorb sunlight -- presenting climate modelers, who need to know where the energy is going, a new wild card to deal with. Companion studies of dust samples from the Sahara and the Saudi coast and loess from China show that the higher the calcium ...

Seekers of what is lost

...noters is: "Can we look at traces of the past the scatter of bones, the words sounded out on a yellowed page, the flight of parrots speaking into shadows and from those traces recover the lost thing that left them? And if we cannot really restore anything to what it was, what is the point of restoring it a...

Novel ultrafast laser detection of cancer cells also may improve understanding of stem cells

...arch team has found that 90 to 95 percent of light scatter generated is from optical properties of mitochondria. Working with UCSD According to Bob Naviaux, professor at the School of Medicine at the University of California at San Diego and co-director of its Mitochondrial and Metabolic Disease Center, "W...

Light scattering method reveals details under skin

...rface and subsurface features of various materials scatter light. It was demonstrated with small pieces of pigskin and inorganic materials but might eventually prove useful for imaging living tissues to help diagnose or determine the extent of various types of skin cancers. A paper on the work was presented ...

New tool reveals secrets of migrating cells

...l go deeper into the tissue, cause less damage and scatter less, Robey said, essentially illuminating slices through the tissue that can be sharply imaged and stacked to produce a 3-D image of the cells in real time. The system they use employs an infrared laser emitting short intense pulses of 920 nanometer...

Tiny zebrafish teaches researchers how to fight off a deadly cancer

... including endothelial, neural and stem cells, and scatter throughout various spaces in the embryo. One of the hallmarks of aggressive cancer cells, including malignant melanoma, is their unspecified, plastic nature, which is similar to that of embryonic stem cells, Hendrix explained. The Hendrix lab has...

Accumulator ring commissioning latest step for spallation neutron source

...ecular structure by analyzing the way the neutrons scatter after striking atoms within a target material. SNS will direct the spalled neutrons to a host of state-of-the-art instruments. The SNS will become the world's leading research facility for study of the structure and dynamics of materials using neutro...

Scientists in dogged pursuit of snow research embark on Arctic trek

...or changes, after it lands on Earth. Snow crystals scatter passive microwave radiation emanating from the ground. Researchers want to know better what type of crystals are more likely to be found in a particular region at a particular time of year. The more information they have about snow crystals from vari...

MIT chemist discovers secret behind nature's medicines

... the physical structure of the protein. The X-rays scatter off the crystal, creating patterns that can be reconstructed as a three-dimensional model for study. Normally, iron-containing enzymes have three amino acids that hold the iron in the active site. In this enzyme, however, one of the typical amino aci...

UCSD researchers develop 'smart petri dish'

...hese cells shrivel up in response to a toxin, they scatter light better, much like fog on a car windshield, allowing us to quickly detect which drugs may have adverse side effects when taken in combination with another," says Sailor. "You're not supposed to drink alcohol when taking acetaminophen, because th...

Purdue creates new low-cost system to detect bacteria

...es a bacterial colony by comparing an image of its scatter pattern against a template that contains 120 featu.... We did something similar. We reduced complicated scatter patterns to 120 numbers based on Zernike polynomials." This reduced collection of numbers describe...

Keep your eyes on the puck

...ok at the eye movements of novice goaltenders, who scatter their gaze all over the place and have a much lower save percentage than the elite goalies." The findings also contradict some research out of Europe which suggests that soccer goalies concentrate on the non-shooting foot of the kicker to make the...

NASA data helps pinpoint wildfire threats

...s determines the manner in which plants absorb and scatter sunlight and plays a major role in moisture retention. Although scientists have long recognized the importance of moisture conditions in wildfire development, this research suggests that other variables may be just as significant. "While live fuel ...

Aerosol pollution slows down winds and reduces rainfall

...sol particles floating in the atmosphere absorb or scatter solar radiation, and prevent it from getting to the ground. This cools the Earth's surface and reduces daytime vertical convection that mixes the slower winds found near the ground with the faster winds at higher altitudes. The overall effect is a re...

Climos chief science officer to speak at NJIT about greenhouse gases

...atories initiative and advanced modular incoherent scatter radar. Leinen has also served at University of Rhode Island (URI) as dean of the Graduate School of Oceanography, dean of the College of Environment and Life Sciences, and vice provost for marine programs....

Fire ants are emerging nuisance for Virginians

...le, will not work and may even cause the colony to scatter and multiply. RIFAs are the one of the most aggressive insects in North America. When a colony of these ants perceives a disturbance to the nest or a food source, they respond quickly by rushing forward and grasping onto the enemy with barbed mand...

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(Date:10/30/2014)... University researchers have developed a suite of technologies that ... humans, which has applications in everything from search and ... "We,ve developed a platform for computer-mediated communication between humans ... for interpreting dogs, behavioral signals and sending them clear ... an assistant professor of computer science at NC State ...
(Date:10/29/2014)... who lose their hair as a consequence of chemotherapy ... improve the scalp cooling technology that prevents hair loss. ... being pioneered by global scalp cooling manufacturing company, Paxman ... biology department of the University of Huddersfield. , The ... who has a background in the pharmacology of cancer ...
(Date:10/29/2014)... factors, both genetic and environmental, have been blamed ... schizophrenia. Some, such as a family history of ... with Toxoplasma gondii , a parasite transmitted ... still viewed with skepticism. , A new study ... epidemiology at the University of Pennsylvania,s School of ...
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