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Tag: "video" at biology news

Extraordinary life found around deep-sea gas seeps

...nriched water. The scientists then lowered a towed video and still camera system over each site to identify...ent of the seafloor they covered. With the live video feed, the scientists observed 30?0 cm long tube worms emerging from beneath limestone boulders and s...

Contrary to common wisdom, scientist discovers some mammals can smell objects under water

...ng it under water." Catania mounted a high-speed video camera so that it pointed up through the bottom of a glass tank. Then he stuck various objects on the bottom of the tank ?pieces of earthworm, small fish, insect cuticle and blobs of wax and silicon ?and observed the moles' behavior. He saw that, whe...

A reason why video games are hard to give up

Kids and adults will stay glued to video games this holiday season because the fun of playi...n and Emotion this month suggest that people enjoy video games because they find them intrinsically satisfying. "We think there's a deeper theory than t...

3-D ultrasound scanner could guide robotic surgeries

...bladder of an animal that had died. (An ultrasound video of the needle traveling toward and then precisely puncturing the animal's organ can be downloaded at http://transducers.bme.duke.edu/movies.php .) "Once the robot takes over, it sends the needle to within about 1.5 millimeters of the center of the...

Thermal imaging shatters arousal gender gap myth

...c genders. They watched the images through special video goggles to minimize distractions. As the subjects responded, the Binik team monitored body-temperature changes to within a 100th of a degree from a computer in another room. Both the men and the women began showing arousal within 30 seconds....

Brain-computer link lets paralyzed patients convert thoughts into actions

... a paint program on the computer and play a simple video game, "neural Pong," using only his thoughts. He could change the channel and adjust the volume on a television, even while conversing. He was ultimately able to open and close the fingers of a prosthetic hand and use a robotic limb to grasp and move...

Coming soon: 3-D imaging that flies 'through' and 'around' cancer

...ansmits an image of the inside of the colon onto a video screen so its lining can be examined. While the initial findings are exciting, the researchers proved the concept rather than validated the technique. Future validation studies will be conducted and software tools need additional development, said ...

Even when faint, ovary scent draws sperm cells

...times, some sperm cells still found their mark. A video demonstrating sperm chemotaxis (oriented motion in...roscope and camera to the device and then recorded video of the sperm during assays. "We combined in a microfluidic device the ability to generate a chemic...

Even a little cooling helps after cardiac arrest

...r month-long bird surveys at the study site, using video cameras to capture images of as many birds as possible. The results proved encouraging as the video-based estimates of the bird community were in close agreement with those from the snail-trematode analysis. "The more birds there were at a site, the ...

How healthy is that marsh? Biologists count parasites

...r month-long bird surveys at the study site, using video cameras to capture images of as many birds as possible. The results proved encouraging as the video-based estimates of the bird community were in close agreement with those from the snail-trematode analysis. "The more birds there were at a site, the ...

Virtual realities against pain

...eive a reduction in their visual field (due to the video helmet) and a loss of awareness of the activities of the medical practitioner, as well as a loss of control, leading to an increase in anxiety and pain; other patients see it as positive that they cannot see and perceive what the medical practitioner...

MIT 'seeing machine' offers hope to blind

...id. While still allowing the projection of images, video and more onto a person's retina, the new desktop device costs much less than its predecessor in part because it doesn't include the diagnostic feedback of the SLO. The new seeing machine also replaces the laser of the SLO with light-emitting diodes, ...

Genetically altered mice no longer like cocaine

...artment within the box." The researchers used the video footage to measure each animal's activity level after a cocaine injection. The normal mice on cocaine covered roughly five times the distance than the control mice injected with saline (6 meters vs. 1 meter). In contrast, the cocaine-injected mice wi...

Just the expectation of a mirthful laughter experience boosts endorphins 27 percent, HGH 87 percent

...experimental subjects just before they watched the video had 27% more beta-endorphins and 87% more human gr...was maintained from just prior to the beginning of video watching, throughout the hour of viewing and afterwards, also. "We believe the results suggest tha...

How low can you go? Ants learn to limbo

...tween the food and the ants' nest using high speed video recordings from the side. They then tracked the ants' movements and did a kinematic analysis of the results. ...

Understanding the actions of others requires the frontal cortex

...n their study, the researchers showed participants video clips of a person lifting up a box, and asked the participants to determine the weight of the box by paying close attention to the actions of the actor. Normally, participants can succeed in this task without much trouble, but performance was signifi...

UCSB researchers discover shape matters to macrophages

...n used scanning electron microscopy and time-lapse video microscopy to study the action of the macrophages when presented with targets of varying shapes. Mitragotri says the next challenge is clear: learning how to engineer the shape of particles to enhance, delay or prevent phagocytosis. Such a discovery...

Cheaper and simpler keyhole surgery

...operate via a 2D image on a monitor. Moreover, the video camera has to be operated by an assistant and the work must be done using long and rigid instruments that provide little freedom of movement. The existing robot systems that have been developed to solve the aforementioned problems are complex, expens...

Cholesterol gets 'thumbs up' for role in digit development

...otein at work here, named Sonic hedgehog after the video game character, was discovered in the early 1990s and shown to have important roles in patterning the developing embryo, including proper digit patterning. Chiang led the early studies showing that mice without Sonic hedgehog developed only a singl...

Microbiology text tells stories, offers online resources

... links to additional information and animation and video clips. The organization of the supplementary material corresponds to the chapters in the book, and links are clearly labeled by number and title. Sidebars throughout the text guide readers to the designated links. Another study aid is the BrainX ...

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