Exposure to light and sleep pattern alteration
... of the following nights, subjects were awoken and exposed to varying intensities and durations (one, two, or three hours) of light, with a control group simply awakened for four hours each night. Circadian rhythms were measured by fluctuations in core body temperature and in levels of serum melatonin, a ho...Cancer center study shows state's workplace smoking laws are effective
...ent of bar and restaurant employees reported being exposed to secondhand smoke, as opposed to 11 percent of office workers. Additionally, many nonsmokers who reported recent exposure to secondhand smoke in places other than work or at home said it occurred while patronizing restaurants (13.4 percent) and ba...New research adds to evidence that acetaminophen may prevent colon cancer in lab animals
...showed a powerful protective effect in colon cells exposed to the carcinogen, said lead researcher Gary M. Wi...at we found this protective effect even in animals exposed to much higher doses of the carcinogen than a human would ever encounter suggests that acetaminophen...Yale study reinforces theory that babies count
...ing a new number of groups than what they had been exposed to in the habituation phase," she said. "We concluded from this that babies were sensitive to the number of groups in the display, which means they were definitely responding to the number of groups, not the total amount of area or contour length." W...Pregnancy, birth rates fall among young women exposed to elementary school intervention program
...ation." The study also found that by age 21 those exposed to the intervention program had significantly fewer lifetime sexual partners and single people were also more likely to have used a condom the last time they had sexual intercourse than those who did not participate in the intervention. The intervent...Emory University will conduct clinical trial of anthrax vaccine regimen
...s recommended for those in the military who may be exposed to germ warfare and for scientists who work with anthrax in the laboratory. The current FDA-approved course for the anthrax vaccine requires an initial dose followed by injections after two weeks, four weeks, six months, twelve months, eighteeen mo...Whitewater death inspires students to create safer helmet
...t had stayed in place, but it slipped backward and exposed his forehead. He sustained a fatal blow to the center of his forehead. The incident led Turner, a retired businessman, to found the Whitewater Research and Safety Institute, which co-funded the safer helmet development project with the Center for Inj...Researchers gain insight into function of memory enhancing drugs
...ultures, many receptors show reduced activity when exposed to higher-than-normal amounts of a neurotransmitter, a process called desensitization. Essentially, the cells become less sensitive to the effects of neurotransmitters. According to an NICHD author of the paper, Mark Mayer, head of the Laboratory of...Secondhand smoke impairs lung function in women
...nd smoke. He noted that men were more likely to be exposed to secondhand smoke at work, while women were more...or people with asthma should assess if patientsare exposed to smoke and counsel them to avoid exposure. The researchers evaluated the relationship between subj...Hunger hormone may be key in weight loss
...ce ghrelin become inactive when they are no longer exposed to food in the gut. "We think ghrelin cells go to sleep when theyre deprived of contact with ingested nutrients," he said. To test the theory, the researchers analyzed blood samples from 13 obese patients before and after a six-month low-fat, low-cal...Emotional problems of children living in war zones not recognised
...ving in other parts of the Gaza strip. 91 children exposed to home bombardment and demolition and 89 controls who had been exposed to other types of traumatic events related to political violence (such as witnessing bombardment by ...Homeless sexual minorities at greater risk for physical and sexual violence, mental illness
...tential prejudice because this population has been exposed to so much rejection based on their sexual identity. The study was multi-ethnic, with 53 percent of the subjects identifying themselves as white, 19 percent as American Indian or Alaskan native, 18 percent as black, 7 percent as Hispanic and 3 perce...130-year-old mysteries solved: how nitroglycerin works; why patients develop tolerance
... "In general, cells don't work as well after being exposed to nitroglycerin," Stamler explained."It appears that after several reactions, the enzyme is used up and over time, the mitochondriabecome totally depleted of active enzyme and are therefore unable to break down nitroglycerin.That is why patients eve...Hearing infants show preference for sign language over pantomime
NEW ORLEANS Six-month-old hearing infants exposed to American Sign Language (ASL) for the first time prefer it to pantomime, lending new evidence that humans show a broad preference for languages over "non-languages," according to a University of Washington researcher who will present her findings h...Writing nanopatterns with DNA inks
...NA and disturbing the readings. When the array was exposed to a solution containing DNA complementary to the two types of spots (one complement attached to large gold nanoparticles and the other to small gold nanoparticles), the DNA selectively assembled on the correct spots. The researchers used the same AF...Does your brain shutdown with Alzheimer's?
...s, you lose your memory," says Ingram. Next, they exposed the depolarised cells to 1500 known drugs. The dye showed that 10 of the drugs reversed the depolarisation, restoring cells to normal. Some of these drugs are known to block channels that allow chloride ions to leave the cell, so an outward flow of c...Drugs may not be best weapon against teen migraines, study finds
... they should have read over the phone so they were exposed to the information." But for the most part, teens in the study were eager to learn to control their headaches, Cottrell said. The teens also responded favorably to biofeedback therapy, which, in this project, involved a small electronic thermometer ...Breast cancer mortality may be tied to prolonged exposure to low dose radiation
... Journal of the National Cancer Institute . Women exposed to high-dose radiation are known to be at increased risk of developing breast cancer. However, it is unclear how prolonged exposure to low or moderate levels of radiation influences breast cancer risk. A previous study of female medical radiation wor...Mad hatters, seafood jubilees, & Pfiesteria Files
...epipe hats were made in this fashion. Hat makers, exposed to large amounts of vaporized mercury, began to experience its effects on their own nervous systems. Doctors even recorded seeing "holes the size of quarters" inside some hatters' brains. The state of Connecticut outlawed the use of mercury in hat m...... of the clock genes, called period. All flies were exposed to light for 12 hours, followed by dark for 12 hou...uations compared with complete darkness. The flies exposed to alternating light and dark still showed 18 genes with persistent, rhythmic oscillations, demonstr...