Tag: "hours" at biology news
In Western bluebird as well as human families, accumulated wealth encourages stability
...ch aggression directed at offspring in hundreds of hours
of observation during the dispersal stage. Instead, the fledglings were aggressive to each other," she said. "But we admit that parental eviction of offspring could happen very quickly, so even our extensive observation may not have been adequate to ...
Color perception is not in the eye of the beholder: It's in the brain
...e several people colored contacts to wear for four hours
a day. While wearing the contacts, people tended to eventually feel as if they were not wearing the contacts, just as people who wear colored sunglasses tend to see colors "correctly" after a few minutes with the sunglasses. The volunteers' normal co...
Protein aggregates in Lou Gehrig's disease linked to neuron death
...ells went on to die. (They died between six and 24 hours
after aggregates were visually detected.) Cells that did not form aggregates did not die. The study also provides a new understanding of the structure and composition of the deadly aggregates -- one of the first studies to do so. "We found that th...
California computer scientists double volume of data in NIH biotech repository
...Both organizations are based at UCSD. "In under 24 hours
we were able to process more than 286 million haplotypes, partition those haplotypes into blocks, or regions, of limited diversity, and determine a set of 'tag' SNPs that capture the majority of genetic variation," explained Halperin. The research...
Oncology, cancer genomics research on agenda for UH grad
...age of 17 with only $1,000 and worked more than 65 hours
a week at two jobs while taking a full load of cla...ior year," Halawi said. "I went from more than 65 hours
of paid work each week, to 65 hours
of volunteer work. Now I am able to do things I've never dreame...
Travelers can avoid jet lag by resetting their body clocks
... given a baseline phase assessment, starting seven hours
before and ending three hours
after their beginning bedtime. They then slept in the lab and were awakened at their scheduled wake...
NIH offers $35,000 in annual student loan repayment
...egree, devote 50 percent or more of their time (20 hours
per week based upon a 40-hour work week) to research funded by a domestic non-profit organization or government entity (federal, state, or local), and have educational loan debt equal to or exceeding 20 percent of their institutional base salary. App...
Ultrasound a diagnostic tool for space, sports and more
...or muscle and bone atrophy. It normally takes 200 hours
plus yearly updates to learn to operate ultrasound...ducation method that cuts the time to two-to-three hours
a year. Dulchavsky also sees this ultrasound training method as beneficial to battlefield medics a...
Worms know bad food when they smell it
...the worms to learn to avoid it. In fact, just four hours
in the presence of P. aeruginosa was enough for the worms to choose E. coli instead. From these experiments, it was clear that the worms modified their olfactory preferences to avoid toxic bacteria but it was not yet clear whether they were act...
Lateral thinking produces first map of gene transmission
...ation carried out in Australia, with over 500, 000 hours
of computing. The scientists used the national supercomputing facility of the Australian Partnership in Advanced Computing....
Limiting the damage in stroke
...had beneficial effects even when it was done a few hours
after the stroke. That is important when thinking about possible human therapies; it usually takes time for a patient to reach the hospital. Secondly, the same effects could be achieved by blocking IKK2 activity with a small artificial molecule. That...
Gene variants predict heart muscle damage after cardiac surgery
...going cardiac surgery. Blood samples were taken 24 hours
after surgery. Patients were considered to have suffered a post-operative MI if their CK-MB levels were at least ten times higher than the upper limit of normal. Of the patients, 52, or 12 percent, were considered to have suffered an MI. Using a two-...
Alcohol, stress, a family history of alcoholism, and the β-endorphin system
...hin levels were also measured prior to and for 3.5 hours
after the stress test. Results indicate that there are differences in both the basal plasma β-endorphin levels as well as the response of the pituitary β-endorphin to stress as a function of an individual's family history of alcohol problem...
Seasonal depression, anxiety affects hamsters, study finds
...g of breeding pairs housed in either long days (16 hours
of light a day, such as found in summer) or short days (8 hours
of light per day, such as found in winter). Following birth, the hamsters remained in the same light...
Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer
...are cancerous or not in a matter of minutes versus hours
or days with current methods of histology sectioni..." to the body's natural defense mechanism. Twenty hours
after the nanoshells were injected, the researchers imaged their presence in the tumor by using a sm...
JCI table of contents: December 2005
...the molecule with the highest induction level at 3 hours
of reperfusion injury in rodent kidneys subjected to ischemia/reperfusion. The predominant sites of expression of TSP-1 are the injured proximal tubules, where TSP-1 colocalizes with activated caspase-3. Cultured kidney cells exposed to TSP-1 also d...
Polymer gel can block toxic leakage problem in gene therapy
... to trace where the viral particles went during 24 hours
after being injected into breast tumors implanted in experimental mice. That investigation showed that 10 times more of the viral particles were transported to other organs than were retained within the tumors. And most of the errant viruses ended up...
Student scientists create living bacterial photographs
...ody temperature in an incubator. After about 12-15 hours
of exposure (the time it takes for a bacterial population to grow and fill the Petri dish), the light projector is removed. What's left is a living photograph. Bacteria in the lighted regions of the Petri dish don't produce the pigment and appear l...
Panbio announces achievement
...re eliminated, reducing assay-processing time from hours
Pretreating rogue cancer cells with aspirin cripples their resistance to targeted therapy
... to pretreat cancer cells with aspirin at least 12 hours
before the administration of TRAIL. Dr. Lee and his colleagues also found that aspirin treatment causes cancer cells to decrease their production of a cellular protein known as Bcl-2, which has been shown in numerous studies to protect healthy cells ...
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