Tag: "plate" at biology news
New hydrothermal vents discovered as 'South Pacific Odyssey' research begins
... to a subduction zone (the Tonga Trench) where one plate
of Earth's crust dips beneath another one. The La...rocess involved as plates recycle. The subducting plate
also contributes many chemicals to the overlying volcanoes of the Lau Basin, creating ocean crust of...
Extreme stretch-growth of axons
...ic plates. Axons sprouted from the neurons on each plate
and connected with neurons on the other plate. The plates were then slowly pulled apart over a series of days, aided by a precise computer-controlled motor system. "By rapid and continuous stretching, we end up with huge bundles of axons that are vis...
NIST's new way of 'seeing': A neutron microscope
...a row of 100 dimpled aluminum plates. Each dimpled plate
acts like a weak focusing lens for neutrons, diverting the neutrons' path slightly at each interface. The image then is projected onto a detector. Adelphi Technology Inc. of San Carlos, Calif., designed and demonstrated the microscope with the help o...
NRH1 and Wnt signaling come together in convergent extension
...body axis and the failure of mesodermal and neural plate
marker gene expression to converge on the midline or extend axially. Interestingly, interfering with NRH1 function by introducing morpholinos to block production of the NRH1 protein had similar effects the inhibition of convergent extension. That bo...
Songbirds escaped from Australasia, conquered rest of world
.... "And, sure enough, the line separating the Asian plate
from the Australasian plate
runs between Bali and Lombok." ...
'Anti-plume' found off Pacific Coast
..., Ore. The gradual subduction of the Juan de Fuca plate
beneath the North American plate
puts tremendous stress on the seafloor, creating cracks and fissures, hydrothermal vents, seafloor s...
Volcanic soils yield new clues about the emergence of powerful chiefdoms in Hawaii
...anic islands are created when the Pacific tectonic plate
slowly passes over a region of hot magma located deep in the Earth's mantle. As a result, the islands get progressively younger as you move from west to east. Kauai, in the western end of the chain, emerged some 4.7 million years ago, followed by O'a...
NASA researchers customize 'lab-on-a-chip' technology
...tory equipment -- to be performed on a small glass plate
with fluid channels, known to scientists as microfluidic capillaries. "We are studying how lab-on-a-chip technology can be used for new tools to detect bacteria and life forms on Earth and other planets and for protecting astronauts by monitoring cre...
Scientists discover secret of dolphin speed
...xperiment which mimics dolphin skin using a 'wavy' plate
covered in tiny pieces of film that gradually peel off as water moves over the surface. Professor Hagiwara said: "It's really difficult to measure flow near swimming dolphins, so we designed an experiment that accurately reflects the way the surface ...
World's first 'robot scientist' proves a major success in the lab
...en measuring the growth of yeast using an adjacent plate
reader that feeds the results back into the system. The robot then evaluates the results against the set of hypotheses, generates new hypotheses, and the process starts again - the same type of cycle human scientists use to understand the world. Alth...
Mars on Earth?
...ou take a soil sample from any environment and you plate
it on nutrient media, you see many different bacterial colonies growing there after a few days. But, in the case of the soils collected in some areas of the core region of the Atacama Desert, no or very few bacterial colonies appear, even after 20 da...
November science picks!
...bbey in Marvin, S.D. The USGS uncovered 337 glass plate
negatives featuring Native Americans from the late 1800s to early 1900s; however, the negatives had deteriorated almost beyond restoration. The USGS is now in the process of restoring, scanning, and printing these historical photographic records of ...
Vanished super-ocean or expanding Earth?
... biogeographic evidence is not consistent with the plate
tectonic hypothesis of a now-vanished, pre-Pacific super-ocean, Panthalassa. Instead, it supports a minority view in geology that holds that all oceans were closed and the Earth's radius was smaller pre-Jurassic. This is discussed in the October i...
UT Southwestern researchers receive $15.1 million in federal grants to study biothreats
...own pathogenic bacteria; examining an open culture plate
can cause exposure. "It's a very dangerous organism to work with, and that's why so little is known about it," Dr. Norgard said. Tularemia is classified by the U.S. government as a Category A biothreat, the highest classification. Aerosol disseminati...
Drug developed for rare disease may help millions more as treatment for cancer, autoimmune diseases
...s of the antibodies. The next question on Brewer's plate
is whether TM can do the job even easier. "We have an oral pill that's shown to inhibit TNF-alpha in mice. The concept is that for whatever diseases these antibodies therapeutically benefit, TM should be tried," Brewer says. Studies are either beginn...
The 'fixed' hotspot that created Hawaii was not stationary after all, study finds
...mperor bend has played as an example of [tectonic] plate
motion change, these observations now question whe...go large changes in direction rapidly, and whether plate
boundary forces alone can play a dominant role in controlling plate
motions," they noted. "These dat...
Seeking the cause of a mysterious whale disease
... released the new "Protect Florida Whales" license plate
to help fund this important research. Proceeds from the sale of the new plate
will be used to support HARBOR BRANCH's efforts to study and protect more than a dozen species of wh...
Perfect planet, clever species
...nclude: a long-lived star a stabilizing moon plate
tectonics the tilt of the earth the existence of heavy metallic elements flowering plants, etc. This incredibly unlikely series of conditions have combined to allow life to form, evolution to occur, and civilization to flourish. Even warfare is ...
How far to the nearest road?
... diamond infield, and that you could stand on home plate
in each of these parcels," said Riitters. "According to our model, in one out of every 22 cases there would be a road no further away from you than second base. In one in five cases, the road is no further away than the center field fence. While the ...
B-vitamins prove effective in relieving chronic pain
...evidenced by writhing test, heat coil test, or hot plate
test (although some negative results have also been reported). Nociceptive pain comes from sprains, bone fractures, burns, bumps, bruises, inflammation (from an infection or arthritic disorder), obstructions, and myofascial pain (which may indicate ...
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