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Tag: "minutes" at biology news

Baby fish 'smell their way home'

... four different reefs. To their amazement, within minutes a surprisingly high percentage of baby fish had congregated in the water flow from their home reef. "It was a lot more than you'd expect to happen by pure chance ?and it applied, in differing degrees, across several species of fish," Mike says. ...

Scientists unravel clue in cortisol production

... they found. "Once SF-1 binds, it leaves. A few minutes later other proteins come in and condense the DNA,...remely complex series of events that starts within minutes of the adrenal gland receiving the signal. Without all these transient binding events, the adrenal g...

Surgeons with video game skill appear to perform better in simulated surgery skills course

... the surgeons also played three video games for 25 minutes while the researchers assessed their gaming skills. Of the surgeons who participated in the study, 15 reported never playing video games, nine reported playing zero to three hours per week, and nine reported playing more than three hours per week ...

Bioluminescence at the service of a novel cerebral imaging technique

...ondary response which is delayed by about 10 to 15 minutes at the level of neuronal axonal projections. It is therefore probable that this new response (hitherto totally unsuspected) intervenes in learning and memory phenomena. Furthermore, using this imaging technique, it has been possible to record n...

Smoking ban dramatically reduces air pollution in Irish pubs

...40 hours per week pre-ban, but dropped to about 25 minutes post-ban, showing a 99 percent decrease in exposure. Post-ban tests also demonstrated an 83 percent reduction in tiny particulate matter in bar air. "These results confirm that the approach of a total ban on smoking in the workplace is successf...

Insomnia drug can improve brain function

... she was given zolpidem for a bout of insomnia; 20 minutes later, she was able to communicate to her family, eat by herself, and move. These effects lasted for up to three hours. After systematically withdrawing all of her medications one by one, it was concluded that the positive effect was due to zolpidem....

Rapid oral HIV test shows great promise according to MUHC-led research

...dvantages are that results are available within 40 minutes compared to the standard blood test, which takes up to two weeks. This test can also be performed by health workers with minimal training, eliminating the need for specialist laboratory technicians." "Rapid point of care HIV testing is a very impo...

How trees manage water in arid environments

...f ice on the kitchen floor and ignore it, in a few minutes it will be gone -- melted and then evaporated. In Indiana, if you drop a piece of ice on the floor and ignore it, the water will just stay there until it's wiped up. In Arizona, she said, if you need a particular garment on short notice and it's i...

Tracking sperm whales and jumbo squid

...00 to 1,600 feet below sea level and were 15 to 30 minutes in duration. Only 13 dives (3 percent) exceeded 3,200 feet. These results closely mirrored the diving data collected from the squid. "Tagged squid in our study occupied the 100-500 meter [300 to 1,600-foot] zone, the same region to which the whale...

Selectivity is ultimate aphrodisiac

...negotiating all of these subtleties with only four minutes for each date." "Selective vs. Unselective Roma...n likes you, but you're able to pick up -- in four minutes -- the degree to which that person likes you more than their other dates. It's amazing." To expl...

Mutation improves memory, may lead to memory-enhancing pill

...phenomena—including short-term memory, lasting for minutes to hours, or the beginning stages of longer-term memory storage, lasting for one to three hours. The second component, which follows strong or repetitive training, activates mechanisms that stabilize the memory and nerve connections, resulting in lon...

Sandia researchers take new approach to studying how cells respond to pathogens

...immune cells respond to pathogens in the first few minutes and hours of exposure. Their method looks at cells one at a time as they start trying to fight the invading pathogens. Called the Microscale Immune Studies Laboratory (MISL) Grand Challenge, the work is in its second of three years of funding by ...

Research says boiling broccoli ruins its anti-cancer properties

...e and transported them to the laboratory within 30 minutes of purchasing. The effect of cooking on the glucos...f total glucosinolate content after boiling for 30 minutes was: broccoli 77%, Brussel sprouts 58%, cauliflower 75% and green cabbage 65%. The effects of ot...

Percutaneous aortic valve replacement safe, successful in high-risk patients

...ere placed on a bypass pump for an average of 30?0 minutes to minimize blood flow through the aorta and ease placement of the replacement valve. All 17 patients survived the procedure. One patient died 5 days later from stroke. Five additional patients died after discharge from the hospital from health p...

Focused ultrasound relieves fibroid symptoms in women

...Protocol A allowed a maximum treatment time of 120 minutes and a maximum fibroid treatment volume of 100ccs (...Protocol B allowed a maximum treatment time of 180 minutes and maximum fibroid treatment volume of 150ccs (about seven cm in diameter), or up to 33 percent of ...

Studies to find better ways to preserve human eggs, ovarian tissue under way

...solution where we can warm up tissue in under five minutes and still get no ice formation,” says Dr. Song, adding that ice formation aside, it is difficult to thaw rock-solid tissue at room temperature in a matter of seconds, meaning the current approach could have extremely limited use. A study he publis...

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