MIT works toward engineered blood vessels
... structure with defined edges, also called a band
Once the band
structures form, the researchers apply a commonly ... mature epithelial cells, did not produce band
Growing tissue on a patterned ...
Story tips from the US Department of Energy's Oak Ridge National Laboratory, September 2007
... MICROSCOPY -- A chorus of signals . . .
excitation, a new family of scanning probe ... of a material at only one single frequency. band
excitation excites and detects response over a continuous band
of frequencies, rapidly measuring the frequency ...
Caltech scientists show function of helical band in heart
... generations of scientists were unable to do was to connect that myocardial band
to the heart's function--to prove that the helical shape is important to ... which is when the heart is contracting," says Gharib. "This simple band
structure is akin to an engine behind the heart pumping action."
Scripps Research scientists shed light on how DNA is unwound so that its code can be read
... histones, exposing the DNA so that it can be read.
"Imagine a rubber band
wrapped twice around a water glass. The easiest way to move the band
is to pull a little of it away from the glass and then slide it" Asturias ...
U-M scientists remove thousands of aspens to glimpse forest's future
... experiment to glimpse the Great Lakes region's future forests.
of bark was stripped from each tree to kill it without cutting it down.
... trunk. Other workers follow with hammers and steel pry bars, stripping a band
of bark from the trees.
Girdling trees kills them while preventing them ...
AGU journal highlights -- Jan. 28, 2008
... zonal bands of small-scale motion: one a known wind-induced anticyclonic band
at 30 to 40 degrees latitude, and the other an unexpected cyclonic band
at 10 to 20 degrees latitude. The latter might be due to fine-scale ...
American Chemical Society's Weekly Presspac -- June 17, 2009
... the ACS' bi-monthly journal Industrial Engineering & Chemical Research .
Richard Gordon, T. V. Ramachandra, Durga Madhab Mahapatra, and Karthick band
note that some geologists believe that much of the world's crude oil originated in diatoms, which produce an oily substance in their bodies. Barely ...
Early brain activity sheds new light on the neural basis of reading
... analyses showed a left-lateralized inferior frontal gyrus (pars opercularis) response to words between 100-250 ms in the beta frequency band
that was significantly stronger than the response to consonant strings or faces. The left inferior frontal gyrus response to words peaked at ~130 ms. ...
Olympus advances technology for laparo-endoscopic single-site surgery
... the TriPort, Olympus is the manufacturer of a processor called the EVIS EXERA II universal platform, which features the world's first and only narrow band
imaging (NBI) and high-definition technologies, the next generation of visualization which enhances minute capillaries and tissue during ...
American Chemical Society Weekly PressPac -- April 8, 2009
In the new study, Herbert Waite and colleagues point out that many existing coatings are severely limited by the materials they cover. A rubber band
dipped in molten wax is a good case in point. Once hardened at room temperature, the wax is several times harder and stiffer than the underlying ...
Scientists discover why teeth form in a single row
... layers within the mammalian embryo. The first sign of tooth development in mammals is the thickening of the epithelium along the jaw line to form a band
of cells called the dental lamina. Because all teeth subsequently form from the dental lamina, the assumption was that some special quality of ...
Princeton researchers discover new type of laser
... that are in a random order, like crowds milling about a busy marketplace. In contrast, photons in a laser are "in sync" with each other, like a music band
marching in formation. This property, called coherence, allows laser light to shine in an intense, narrow beam of a single, very pure color.
UAF researchers to present at AGU press briefing
... ice, land temperature and NDVI data, Walker's group found that between 1982 and 2007, summer sea-ice cover declined by 27 percent in a 50-kilometer band
along Arctic Ocean coastlines. Corresponding changes in the greening index varied, ranging from a relatively large 24-percent increase along the ...
Ocean acidification from CO2 emissions will cause physiological impairment to jumbo squid
... will be forced to retreat to even shallower depths to recover. However, warming temperatures and increasing CO 2 levels may prevent this. The band
of habitable depths during the night may become too narrow."
Carbon dioxide enters the ocean via passive diffusion from the atmosphere in a process ...
Missing: 2,000 elephants
... 185, recruit seasoned bush pilot Darren Potgieter, and begin aerial surveillance of the Zakouma landscape to strengthen the efforts of the small band
of the government's courageous park rangers. These overflights not only facilitate monitoring elephant numbers in difficult terrain, but have proven ...
Making the ultimate family sacrifice
... These single-celled creatures eat bacteria, and as long as food is plentiful, they're content to live alone. But when food is scarce, D. discoideum band
together by the thousands. About 20 percent of colony members sacrifice themselves to form a stiff stalk that the rest can climb to migrate and form ...
Proteins strangle cell during division
... been replicated, these three proteins form a band-like structure over the cell equator. One chromosome is then found on each side of this band. The band
then squeezes the cell into two so that two new daughter cells are formed. At first it looks like mitosis, as discussed in many a biology lesson. ...
Uncovering secrets of life in the ocean
... The photoreceptor detects light and converts it into an electrical signal that travels down its neural projection, which makes a connection with a band
of cells endowed with cilia. These cilia - thin, hair-like projections - beat to displace water and bring about movement.
Shining light ...
Acoustical Meeting, Nov. 10-14, 2008 in Miami, Florida
... that how one hears the beat causes a large change in the brain's responses to sound. The changes were in a range of brain responses called the beta band
(20 to 30 oscillations per second), which is known from past studies to be associated with activity in the brain's motor centers. This suggests that ...
New cell division mechanism discovered
The researchers have identified three genes that are activated just prior to cell division. The protein products from these genes form a sharp band
in the middle of the cell, between newly segregated chromosomes, and then gradually constrict the cell such that two new daughter cells are formed. ...
Despite 'peacenik' reputation, bonobos hunt and eat other primates too
... bonobo societyin which females enjoy a higher social status than maleshas a "make-love-not-war" kind of image. While chimpanzee males frequently band
together to hunt and kill monkeys, the more peaceful bonobos were believed to restrict what meat they do eat to forest antelopes, squirrels, and ...
Checking people at airports -- with terahertz radiation
... the THz range, calculable according to Planck's radiation law, the PTB uses two THz cavity radiators at different temperatures in connection with THz band
and longwave-pass filters. The interior surfaces of the radiators are provided with a special coating which possesses a known and high emissivity ...
USGS news: August science picks
... awarded at the 2008 Beijing Olympic and Paralympic Games this month. For the first time in Olympic history, the metals will incorporate a distinctive band
of jade, representing honor and virtue in traditional Chinese culture. Gold, silver and copper from Australia and Chile were donated by BHP Billiton, ...
Old growth giants limited by water-pulling ability
... forces of evaporation from the leaf surfaces, the water is in "tension," like a pulled rubber band. If an air bubble gets in, it's like the rubber band
breaking and water can no longer be transported. With a 350-foot-long water column, there's a lot of tension on the water in the cells at the top of ...
Scattered nature of Wisconsin's woodlands could complicate forests' response to climate change
... overall, but patches of it can also be widely scattered, making it tough for seeds to cross the gaps. In particular, Mladenoff points to the wide band
of agricultural land that runs across the middle of the state as a major obstacle to the northward migration of southern trees.
To arrive at their ...
The good, the bad and the smelly: USGS at the 2008 Coral Reef Symposium
... documented disease prevalence on A. palmata around St. John that ranged from 0 to 52 percent, with high levels of white pox and low levels of white band
disease. White pox lesions often heal. In addition, A. palmata in the U.S. Virgin Islands bleached for the first time in 2005. Over the next 50 to ...
Key molecule discovered in Venus's atmosphere
... surrounding the planets disc. The instrument detected the hydroxyl molecules by measuring the amount of infrared light that they give off.
of atmosphere in which the glowing hydroxyl molecules are located is very narrow; it is only about 10 km wide. By looking at the limb of the planet, ...
European light research opens door for optical storage and computing
... in fractions of a second.
Another more immediate application of fast and slow light is likely to come from the ability in processing ultrawide band
microwave signals, for radio communications, both for mobile telephony and wireless LANs. Fast and slow light can be harnessed to transmit radio ...
Findings a step toward making new optical materials
... for consumer products.
More importantly, the technique represents one of several possible approaches to create "omni-directional photonic band
gap materials." Unlike conventional mirrored materials, which reflect light hitting the mirror at certain angles, the omni-directional materials ...
Researchers bridge the 'terahertz gap' with new tunable metamaterial
... achieved 20 percent tuning of the terahertz resonance to lower frequencies those in the far-infrared region addressing the critical issue of narrow band
response typical of all metamaterial designs to date.
Constructed on the micron-scale, metamaterials are composites that use unique metallic ...
Are sacrificial bacteria altruistic or just unlucky?
... and which go on to form spores.
B. subtilis, a common soil bacteria, is a well-known survivor. When running short of food, it can alternatively band
together in colonies or encase itself in a tough, protective spore to wait for better times. In fact, B. subtilis is so good at making spores that ...
Why juniper trees can live on less water
... form in the water-conducting xylem tissues of plants.
Water is sucked through xylem tissues under a partial vacuum, "so it's almost like a rubber band
being stretched out," explained Jackson. "The dryer the conditions, the greater the tension on that 'rubber band' and the more likely that it will ...
Private 'Rocketeers' reach for space -- science writer in Canada to explain
... and author Michael Belfiore in a sold-out public lecture. Belfiore will provide insights from his recent book Rocketeers: How A Visionary band
of Business Leaders, Engineers, and Pilots Is Boldly Privatizing Space.
Having gained inside access into the top private space programs, Belfiore ...
Quakes under Pacific floor reveal unexpected circulatory system
... neatly, outlining the cold waters apparent entrance. It dives straight down through the ridge about 700 meters, then fans out into a horizontal band
about 200 meters wide before bottoming out at about 1.5 kilometers, just above the magma. Heated water rises back up through a dozen vents about 2 ...
Biophysical Society announces winners of 2008 Minority Travel Awards
... of Puerto Rico, Rio Pedras, San Juan, Puerto Rico, Binding of Substrate in the Heme Pocket of Amphitrite ornata Dehaloperoxidase Induces Soret band
Neville Forlemu, University of North Dakota, Brownian Dynamics Simulations of Enzyme-Enzyme Interactions and Ligand Transfer.
Stanford researchers say climate change will significantly increase impending bird extinctions
... of a mountain is typically smaller near the summit than at its base, so a range of, say, a hundred vertical meters occupies a far smaller band
of area near the top than it does down at the base.
And once the summit of a mountain becomes too hot for a species or its preferred vegetation ...
Sunbathing tree frogs' future under a cloud
... project that draws on expertise right across the university. It is proof that interdisciplinary research is not just a fashionable expression we band
around, but something we actually do."
Andrew Gray said: With a third of the worlds amphibians currently under threat its vitally important we do ...
Wildfire drives carbon levels in northern forests
... carbon dioxide levels worldwide.
Second in size among forests only to the tropical rainforests, the boreal forests form a massive green band
spanning the higher latitudes of Canada, Alaska, Siberia, China, and Scandinavia. Their sheer size, coupled with the fact that they are expected to ...
A tiny pinch from a 'z-ring' helps bacteria cells divide
... microbes set out to multiply, a signal from an unknown source causes a little-understood structure called a Z-ring to tighten like a rubber band
around each bacteriums midsection. The Z-ring pinches the rod-like body into two microbial sausages that finally split apart. To shed light on this ...
September Geology and GSA Today media highlights
... after the typhoon indicate that the sediment was first deposited adjacent to the river mouth and then re-suspended and deposited as a discontinuous band
of mud along northwestern Taiwan. Within one month most of the mud had been eroded (most likely transported northward by the Taiwan Warm Current), ...