Tag: "waves" at biology news
Stormy days ahead for coral reefs
...o which they attach and the change in force of the waves
as they move across the reef. "This enables us ...ineering theory to translate the movement of storm waves
into mechanical stresses on the coral in different parts of the reef, incorporates the various shape...
Scientists find new way to manipulate DNA
...mers break when subjected to strong flows, such as waves
crashing against a ship's bow, was wrong. This is important for a few reasons, said Michael Solomon, associate professor in the Department of Chemical Engineering, Macromolecular Science and Engineering Program. Broken polymers don't function as i...
...change across latitudes, and the role of splashing waves
on the mussels. Using sensors placed in several mussel-strong regions throughout the organisms' territory, the scientists were able to study the temperature changes the mussels experienced on a day to day basis, as well as on a yearly basis. They f...
Nanoscale microscope sheds first light on gene repair
... has limited resolution. By manipulating how light waves
behave, however, biophysicists are expanding the limits of light microscopy, and one of the latest advances--the 4Pi microscope--provides never-before-seen views of cellular components, including structures within the nucleus. In a paper published...
Open Science Conference to focus on regional sustainability challenges to the Earth system
...as. Parallel Session 27, Droughts, floods and heat waves
in a warmer world. Sea-level Rise and Weather Extremes Experts: John Church and Nick Harvey (sea-level rise), Michael Manton (climate extremes), Nobuo Mimura (sea-level rise), Karen O'Brien (human security), Jozef Pacyna (coastal zones) Institutio...
Steep oxygen decline halted first land colonization by Earth's sea creatures
...gan moving from the sea to land. "It matches two waves
of colonization of the land," Ward said. "In the first wave the animals' lungs couldn't have been very good and when the oxygen level dropped it had to be hard for the vertebrates coming out of the water. I wonder if there is a minimum level of oxyge...
Living laboratory found on shoreline statues
...ed in the water column without getting battered by waves
and currents. The Gormley statues not only provide a perfect anchor point but sheltered parts of the figures such as the inner thigh protect them from extreme harsh conditions. "This particular breed is a cross-fertilising hermaphrodite which mean...
Listening to the sound of skin cancer
...te in the solution like tiny tsunamis. The sound waves
produced by melanin are high-frequency ultrasounds, meaning that they cannot be heard by the human ear, even if amplified. However, researchers can pick them up with special microphones and analyze them with a computer. Other human cells do not conta...
How the brain keeps emotions at bay
... involves using harmless magnetic fields and radio waves
to measure blood flow in brain regions, which reflects brain activity. Etkin, Hirsch, and colleagues found that the emotional stimuli activated the amygdala as expected. Importantly, they found that when presented with the "incongruent" images this...
Slow brain waves play key role in coordinating complex activity
... in" the fast brain oscillations called high-gamma waves
that signal the transmission of information betwee...ctions to high-level goals and intentions." Brain waves
- such as the slow alpha waves
of the relaxed or idling brain or the fast, seemingly random pulses a...
Protein folding physics, nanohandles, sunscreen for algae and classical quantum weirdness
...e of an agitated layer of oil. The droplet created waves
on the surface, which in turn affected the motion of the droplet. As a result, the droplet and waves
formed a single entity that consisted of a hybrid of wave-like and particle-like characteristics. Wh...
Ultrasound affects embryonic mouse brain development
...first to look at the possible effect of ultrasound waves
(USW) on neuronal migration in mice at a late stage of embryonic brain development, when the migratory pathways are the longest and may be most vulnerable. The Yale team injected more than 335 fetal mice at embryonic day 16 with special markers to tr...
Polynesia explorers created worldwide web of scientific knowledge
...tific travelers of the 18th and 19th centuries led waves
of daring expeditions into Polynesia, netting oceans of discoveries about its geography, flora and fauna and people. But they were more than simply courageous collectors of artifacts and statistics, says the author of a new book. These seafaring natu...
African water authorities receive space tool training
... bad weather to map the shape of the land, profile waves
and ice, monitor land use and types of vegetation and measure some of the properties of the surface. Topics being addressed at the training session include SAR principles and processing techniques, microwave techniques for hydrological application...
NC State scientists characterize protein linked to neurodegenerative diseases
...imes greater than the Earth's magnetic pull radio waves
are bounced off the approximately 5,000 nuclei in the protein. "When you hit a nucleus with a radiofrequency pulse, it resonates, sort of making its own little noise, like a tuning fork," Cavanagh says. "The frequency at which the nuclei resonate ...
Gene screen for breast cancer better than pathologist's 'eye'
...ay by other investigators, and include using sound waves
to locate all the ducts. ...
Solitons could power molecular electronics, artificial muscles
...reat particles such as electrons as waves, soliton waves
are different. Ordinary electron waves
spread out and diminish over time, and soliton waves
don't. "It's like when you make a ripple in w...
What do Racquel Welch and quantum physics have in common?
...s to consider our observable universe as a mass of waves
on top of an ocean, whose depth is immaterial. Our...d all our instruments can only directly detect the waves
so it seems that trying to probe whatever lies beneath, the void itself, is hopeless. Not quite so. ...
ACS Weekly PressPac -- June 26, 2006
...components can be integrated into the EAPap. Radio waves
beamed to the antenna then would be converted into electricity that moves the EAPap. "This means that EAPap actuators can be remotely driven using microwaves, making them attractive candidates for ultra-lightweight multifunctional applications, suc...
Whale bubble nets, saxophone sounds, ultrasonic laser
...cuits each of which can detect incident ultrasound waves
and produce a train of sound waves
of its own in synchrony with the incident waves. By carefully tuning the circuit parameters one can ...
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