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Tag: "watching" at biology news

Revolutionary nanotechnology illuminates brain cells at work

...we could see this activity under the microscope by watching the color change. We stimulated the neurons and watched them secrete glutamate in response. We also saw the removal of the glutamate as the neurons returned to normal ready to fire again." "This is a tremendously exciting technology," remarked Wolf ...

Canadian youth 4th highest in international obesity study

...& Epidemiology. And sedentary behaviour ?like watching television ?was strongly correlated with being overweight, he adds. Along with this alarming finding is one that runs contrary to what the research team expected. Surprisingly, as consumption of candy and chocolate increased, the likelihood of being...

Asymptomatic HIV babies could use earlier treatment

...e importance of testing pregnant women for HIV and watching for signs of infection in the newborns of women who have tested positive for HIV. The study was supported by funding from the Office of AIDS at the California Department of Health Services. Researchers from 10 institutions participated in the study,...

The making and breaking of microtubules

...d Wang first tackled the depolymerization process, watching what happens to microtubules when GDP is bound to ...he researchers tackled the polymerization process, watching what happens when GTP is bound to tubulin molecules. If GDP somehow causes protofilaments to curl up...

For first time, brain cells generated in a dish

... we have a tool to do exactly the same thing." By watching the cells perform, scientists can make judgments and influence the capacity of the cells to generate specific neurons. "As far as regenerating parts of the brain that have degenerated, such as in Parkinson's disease, Huntington's disease and others ...

Scientists unpick genetics of first 15 minutes of life

...le pro-nucleus. By highlighting the chromatin and watching the changes it goes through at different stages of the fertilisation process, the scientists found that the pro-nucleus in s�same mutant is wound into a tight ball that could not interact with its female counterpart, the egg pro-nucleus. This showed...

Sooner is better with cochlear implants, Stanford scientist shows

...with an audio recording of a single syllable while watching a synchronized video of a speaker's face mouthing a different syllable, in some cases a third syllable is heard, due to the brain's fusion of non-matching audio and visual information. It's an unnatural situation that a person wouldn't normally encou...

New male contraceptive clears hurdle

...o, says she is not surprised that American men are watching the RISUG trial with keen interest. She emphasizes that the method has the potential to be the first truly affordable, reversible, long-term male contraceptive. In 2002, when enrollment in the Indian study was halted, more than 140 men were already...

One fish, two fish: New MIT sensor improves fish counts

...bout a large shoal, Makris said. "It would be like watching 'Casablanca' and you're seeing one pixel moving across the screen, and that's all you get. You can't figure out what's going on, it's way too slow," he said. Both the new and old methods rely on sonar, which locates objects by bouncing sound waves o...

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

...nticipation of the "mirthful laughter" involved in watching your favorite funny movie has some very surprising...rom the control group, which didn't anticipate the watching of a humorous video. Between blood pulls, the control group stayed in a waiting room and could choos...

Creating a window on 'oceans in motion'

... the world to create an effective global system of watching the oceans in motion," says Dr. O'Dor. Continental shelves average about 80 km (50 mi) wide, and the edge of the shelf occurs at an average depth of about 200 m (660 ft), where it falls steeply into the deep sea. Salmon and many other marine animal...

Virtual realities against pain

...r than the traditional distraction methods such as watching a film or playing a simple computer game. The ADTs simulate real-life situations, and the possibilities are infinite. For example, until now users could choose between taking a flight, driving, downhill skiing, exploring buildings and many more act...

New light microscope sharpens scientists' focus

...the interactions that drive cellular activity, and watching them in action will be important to understanding the interface between molecular and cellular biology. "As the PALM technology advances, it may prove to be a key factor in unlocking at the molecular level secrets of intracellular dynamics that are u...

Flick of whiskers helps tease out brain's 'shadow' signaling system

...ng gentle puffs of air onto a mouse's whiskers and watching how its brain reacts, scientists are discovering that a long-overlooked signaling system in the brain is crucial to our everyday activity. The work is the latest in a growing body of evidence that star-shaped brain cells known as astrocytes aren't s...

Movie spies on malaria parasite's sneaky behavior

...ite safely into the blood vessels. Amino recalls watching the first data "movie" with Heussler. They could clearly see the merosome forming, pinching off the parasite, and traveling away with it along the blood vessel. "That is the beauty of this technique. You can really see what happens in real time--ther...

Tests for 'face-blindness' reveal disorder may not be so rare

...ouses, and even themselves. Many report difficulty watching television shows and movies, since they cannot keep track of characters. Face-blind individuals often compensate for their prosopagnosia using non-facial traits, such as hair, gait, clothing, voice, and context. There are two broad categories of pro...

Trotting with emus to walk with dinosaurs

...e and hard to explain on the face of it. But after watching emus, it became clear that the crossing over is partially the result of the very narrow "straddle" of the trackways, meaning their legs were close together. Emus share that characteristic and can be seen crossing over feet all the time, said Breithau...

Ground spider diversity studied in research project

...tat, she said. The park has areas for hiking, bird watching and horseback riding, and is one of the areas that has Navasota Ladies'-Tresses, an endangered orchid. More information on the park can be found at http://www.cstx.gov/docs/111946232004lick_creek_brochure-04.pdf . ...

Researchers use multiphoton microscopy to watch chromosomes in action

...ee gene expression in organisms," said Lis. "We're watching transcription in real time in living cells." The research was described in the Aug. 31 issue of the journal Nature. The team's experiments focused on gene regulatory mechanisms: specifically, what happens in a cell's nucleus when an external stimul...

Scientists find mutations that let bird flu adapt to humans

...d the virus we see now," Kawaoka explains. "We are watching this virus turn itself into a human pathogen." The mutations found by Kawaoka's group have not yet conferred a complete ability on avian flu to easily recognize the topography of human cells, but they are key steps on that pathway. More mutations,...

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