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Motion in Biological News

MIT: How you feel the world impacts how you see it

... waterfall illusion, if you stare at the downward motion of a waterfall for some period of time, ... have found that this phenomenon, called motion aftereffect, occurs not only in our visual ... found that people who were exposed to visual motion in a given direction perceived ...

Making a point: Picoscale stability in a room-temperature AFM

... laser beams to sense the three-dimensional motion of both the test specimen and the AFM probe. The ... drift of the sample shows up at the detector as a motion of the spot while any vertical movement shows up ... reflected off the apex of the AFM probe. Unwanted motion of the tip relative to the sample is corrected on ...

Cells with double vision

... neurobiologists examined nerve cells that receive motion information in their input region from only a ... suffices the blowfly to integrate visual motion information. The resulting information is then ... of Neurobiology are devoted to investigating the motion vision of flies. Only recently, Borst's co-worker ...

Wii bit of fun at Rice University has serious intent

... the Wiimote to that from a more expensive Vicon motion capture system to "see how good the Wii really is." "We're already grabbing motion data from the Wiimote," said O'Malley, "so soon we'll be able to measure a range of motion and then turn it into a mathematical model." ...

Barrow scientists solve 200-year-old scientific debate involving visual illusions

... eye motions and the perception of illusory motion that solves a 200-year-old debate. Stephen ... painting, a visual illusion in which rotational motion is seen within a stationary image. The artwork ... rates increased before the illusionary motion sped up and decreased before ...

Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25

... flew, six high-speed cameras monitored both the motion of their wings and the air wake created by their ... aerodynamic forces) with the cause (the actual motion of the wing) for the first time," Hubel says. The ... birds. Hubel's talk, "Wake structure and wing motion in bat flight," is at 4:36 pm on Sunday, November ...

Physical activity and health: Finding the right prescription

... moving through our award-winning Saskatoon in motion project." With a team of researchers drawn ... project that became the research arm for the in motion health promotion strategy aimed at encouraging ... part of their daily lives. The impact of in motion stretches far beyond Saskatchewan. The program ...

Predatory bacterial swarm uses rippling motion to reach prey

... concert to digest the prey." Unlike the random motion M. xanthus exhibits at low levels of prey, the ... axis of the ripple and move back and forth. This motion of individual cells, known as cell reversal ... like crests and troughs of waves, and the overall motion of the wave formation is directed toward prey. ...

Water is 'designer fluid' that helps proteins change shape, scientists say

... the folding process, we usually only look at the motion of the protein," said Gruebele, who also is the ... is the first time we've been able to look at the motion of water molecules during the folding process." ... much faster than the protein. The water motion helped establish the correct configuration, ...

Researchers observe spontaneous 'ratcheting' of single ribosome molecules

... to one another, however. They proposed that the motion of the subunits depended on a protein catalyst, ... The researchers were able to view this motion even in the absence of tRNA. The ribosomal ... The researchers propose that this ratcheting motion allows the ribosome to advance along the ...

MIT solves gravity-defying bird beak mystery

... angle hysteresis, typically an impediment to drop motion on solids. For example, raindrops stick to window ... This may be the first known example where droplet motion is enabled rather than resisted by contact angle ... transport, allowing for controlled stepwise motion of microliter droplets, Prakash said. ...

What's bugging locusts?

... Couzin and colleagues say that the collective motion of locusts is driven by "cannibalistic ... are directly responsible for the collective motion exhibited by these bands," added Couzin, whose ... flightless locusts. They developed computerized motion analysis to automatically track the insects ...

American Chemical Society's Weekly PressPac -- March 26, 2008

... In a finding that could provide controlled motion in futuristic nanomachines used for drug ... from the filled capsule initiated the motion of the empty capsule, which in turn caused the ... through Nanoparticles To Undergo Self-Propelled motion DOWNLOAD FULL TEXT ARTICLE ...

Study finds pitching mound height affects throwing motion, injury risk

... in Milwaukee. Our researchers employed a motion analysis system using eight digital cameras that ... athletes bodies. Then we analyzed the pitching motion at mound heights of the regulation 10-inches, ... analysis provided information regarding pitching motion (position and velocity), while the kinetic ...

Scientists find color vision system independent of motion detection

... counter to previous scholarship that suggested motion detection and color contrast may work in tandem. ... appointments at both institutions. Whether motion vision uses color contrast is a controversial ... it had been widely believed that color and motion were processed by parallel pathways. More ...

Chemical engineers discover new way to control particle motion

... Austin have discovered a new way to control the motion of fluid particles through tiny channels, ... The researchers learned that particle motion is strongly linked to how the particles arrange ... and schoolteachers have long appreciated that the motion of cars on highways or children through hallways ...

March GEOLOGY and GSA TODAY media highlights

... magnetic data, Sloan et al. reconstruct plate motion at the Southwest Indian Ridge. Findings indicate ... in fracture zone trends. This change in relative motion appears to have been transmitted to two of the ... belt was accompanied by forward (eastward) motion of thrust sheets. Linked low-angle extensional ...

AGU journal highlights -- Feb. 26, 2008

... 2. Satellite tracks summer Arctic ice motion For more than 15 years, daily sea ice drifts ... the satellite data. He finds that summer sea ice motion can be derived reliably from AMSR-Es 18-GHz ... the Atlantic sector. Title: Summer sea ice motion from the 18 GHz channel of AMSR-E and the ...

AGU journal highlights -- Jan. 28, 2008

... 4. Cyclonic and anticyclonic motion in the upper ocean Driven by the wind, the ... by the interaction of different types of motion and scales. To investigate the properties of ... the ocean surface cyclonic and anticyclonic motion for scales ranging from large vortices to smaller ...

Videos extract mechanical properties of liquid-gel interfaces

... The results could be observed by tracking the motion of styrene beads in the gel. The researchers ... to mechanical noise (irregularities in the motion of the plates). Such noise occurs in real-world ... amount of this mechanical noise produced a lot of motion at the fluid/gel interface. ...

Simulation reveals how body repairs balance after damage

... subject experienced a balance threat was not the motion of the individual body parts, but the horizontal motion of the bodys center of gravity. To test their ... slowly using new sensory pathways to track the motion of the bodys center of gravity, compensating for ...

Magnetic snakes control fluids, gravity-defying droplets, and solving a dragonfly mystery

... (forthcoming) Dragonflies adjust their wing motion while hovering to conserve energy, according to a ... previous speculation that the change in wing motion served to enhance vertical lift. The Cornell ... The physicists' analysis of the out-of-sync motion showed that while it didn't help with lift, it ...

Clemson scientists shed light on molecules in living cells

... that may someday help researchers track the motion of a single molecule as it travels through a ... in Boston. If scientists could track the motion of a single molecule within a living cell it ... on the position of the protein and monitor its motion inside a cell. Until now, nanoparticles ...

A crystal ball for brain cancer?

... barrier to water movement. "We theorized that tumors with more water motion would also have higher VEGF levels," explained Pope. "Because Avastin ... high levels of the growth factor." By measuring the amount of water motion within the tumor, the researchers were able to predict with 70 percent ...

Airway cells use 'tasting' mechanism to detect and clear harmful substances

... called motile cilia, were already known to beat in a wave-like motion to sweep away mucus, bacteria and other foreign particles from the lungs. ... compounds, the cilia beat faster, suggesting that the sensing and the motion capabilities of these cellular structures are linked. "On the tongue, ...

1-finger exercise reveals unexpected limits to dexterity

... of a metronome. "As expected, maximal downward force diminished when motion was added to the task," the researchers wrote. "But remarkably, there ... Fingertip Force Production is Not Limited by Movement Speed in Combined motion and Force Tasks," goes on to discuss and rule out several possible ...

GSA special paper presents new studies of Western US earth motion

... decade, due in part to the recognition that nearly 25% of the relative motion between the Pacific and North American plates is accommodated along this ... and colleagues in 1940, evolved during the Late Cenozoic as relative plate motion was broadly distributed from the California borderland into the Mojave ...

Researchers develop flow sensors based on hair structures of blind cavefish

... A blind fish that has evolved a unique technique for sensing motion may inspire a new generation of sensors that perform better than current ... Society meeting, researchers from Georgia Tech described their engineered motion detector that mimics the underwater flow measurements made by the blind ...

New open-source software permits faster desktop computer simulations of molecular motion

... diseases, such as Alzheimer's and Parkinson's, that result from molecular motion gone awry. In the past, researchers needed either supercomputers or ... University is making it possible to do complex simulations of molecular motion on desktop computers at much faster speeds than has been previously ...

GKSS to invest 12 million euros ($15.48 million) in a new observation system for the North Sea

... current conditions, salinity or oxygen levels, the temperature and motion of the sea or the concentration of algae. This data is fed by the ... might include: How do the intensity and distribution of the current and motion of the sea or salt and acid levels change in the short and long term? How ...

January GEOLOGY media highlights

... and unusually high mobility. Lube et al. clarifies the mechanisms of their motion through two examples generated on 25 September 2007 at Mt. Ruapehu, New ... are separating to create a new ocean. Observations of earthquakes and the motion of Earth's surface show that each new sheet of volcanic rock is about 10 ...

How do bacteria swim? Brown physicists explain

... Caulobacter also is influenced by Brownian motion, which is the zigzagging motion that occurs when immersed particles are buffeted by the actions of the ... as it swims. This twin effect of hydrodynamic interaction and Brownian motion governs the circular swimming patterns of Caulobacter and many other ...

Lead-flapping objects experience less wind resistance than their trailing counterparts

... The trailing flag acts as a splitting plate that restricts the lateral motion of the oncoming flow, the researchers said in explaining their results. This effect indirectly reduces the motion of the leading flag, which makes the appearance of the leader smaller than ...

Acoustical Meeting, Nov. 10-14, 2008 in Miami, Florida

... STEALTHY SECRETS Insect flight has previously been studied with slow motion video and strobe lights, but a new non-invasive technique could reveal ... "Ultrasonic characterization of insect wing reflectivity and wing-beat motion at 200 kHz" by David Swanson, Tom Baker, and Ryan terMeulen is at 3:00 ....

AGU journal highlights -- Oct. 16, 2008

... Noting that the shape of the ocean bottom significantly constrains fluid motion in weakly stratified deep waters, Siland et al. study the positions of ... As a result, the flow becomes conspicuously unstable with strong eddy motion in the FaroeShetland Channel. Title: Rigid topographic control of ...

Researchers find an essential gene for forming ears of corn

... from an interplay between the synthesis of auxin by various cells and its motion between them. Disrupting either its production (by causing a mutation in the spi1 gene) or its motion results in stunted, defective organs. Eudicots vs. Monocots Much ...

Hurricane Ike tracked by ESA's Envisat

... shown in the 'current' section is representative of a very strong eastward motion in the southern part of the hurricane and a symmetrical strong westward motion in the northern part. These observations are clearly in line with the ...

National security remedies among topics at surveillance confab

... and retail stores from threats by indentifying suspicious patterns of motion from people or vehicles. Johnson Controls will address issues facing networked security systems that use IP cameras, motion sensors and card readers connected by corporate IT infrastructures. GE ...

September Geology and GSA Today media highlights

... research suggests the Mississippi delta has a complex history of vertical motion that reflects the response of Earth's crust to large-scale erosion during ... it also suggests that, in the case of Pangea, the reversal in continental motion may have coincided with emergence of a superplume 460? million years ago ...

Nanojewels made easy

... get as close to each other as possible, swirling in a slow circular motion until all of the water evaporates. When nanoparticles of two different ... stay in the middle. This is because the smaller ones have more Brownian motion and are elevated to the surface with the water molecules that are ...
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