again 2 2

Tag: "again" at biology news

Amur leopard still on the brink of extinction, scientists say

...pard numbers. "The recent census confirmed once again that the Amur leopard survives on very shaky ground," said Pavel Fomenko, biodiversity conservation program coordinator at the Far-Eastern branch of WWF in Russia. Fomenko said encroaching civilization, new roads, poaching, exploitation of forests...

Experience affects new neuron survival in adult brain; study sheds light on learning, memory

...unning wheel. After several weeks, the researchers again exposed the mice in the same enriched experience. They discovered that the enriched experience increased new neuron survival and that more new neurons were activated by re-exposure to the same environment. To determine if the increase in neuronal a...

Turtles are loyal in feeding as well as in breeding

...s. Five females were also tracked when they nested again up to five years later and returned to the same foraging sites. Green turtles have been observed cropping sea grass gardens to encourage new growth, so there could be a benefit to them returning to foraging grounds. Loggerheads have an omnivorous ...

Meat and two neutrons -- the key to a longer life

...ope-enhanced steak or chicken fillet every now and again could add as much as 10 years to your life. Scientists have shown for the first time that food enriched with natural isotopes builds bodily components that are more resistant to the processes of ageing. The concept has been demonstrated in worms and ...

Vitamin D deficiency widespread during pregnancy

...y is a major risk factor for infant rickets, which again is becoming a major health problem." For their ...ood were collected prior to 22 weeks pregnancy and again just before delivery, Samples of newborn umbilical cord blood also were tested for 25 hydroxyvitamin...

Unique tomatoes tops in disease-fighting antioxidants

...s drew blood right before each participant ate and again every hour or two up to 10 hours after the meal. They analyzed the blood samples for lycopene and beta carotene content. Lycopene absorption from the tangerine tomatoes was 2.5 times higher than that absorbed from the beta carotene-rich tomatoes a...

Backache beaten by good vibrations?

... before the trial, immediately after the trial and again six months later. Dr McCarthy explains: "Sciatica is an extremely common and disabling condition treated by physiotherapists. "The pain caused by inflammation of lumbar nerve roots could potentially be reduced with the application of TU, a form...

Novel experiment documents evolution of genome in near-real time

... and mutations in the RNA polymerase gene appeared again and again." The researchers report that mutations in both genes appeared together in several cases after six to eight days in the glycerol-based cultures, and E. coli cells containing both mutated genes grew 150 percent faster than the starting st...

Evolution of Old World fruit flies on three continents mirrors climate change

... four decades ago, and the same sites were sampled again recently. South American flies were sampled for chromosome inversions in 1981 and again in 1999. In North America, the first samples were collected in 1985 and the most recent came in 2004...

Anticipation plays a powerful role in human memory, brain study finds

...experiment, scientists met with the study subjects again to measure how well they remembered the same disturbing images. This time, they found that people who best remembered them had shown the greatest amygdala and hippocampus activity during the picture-viewing exercise two weeks before. That suggested t...

Transplanted brain cells hold promise for Parkinson's disease

... neuro-protection was significantly reduced. "This again shows a combination of factors at work," says Dr. Borlongan. "It’s a synergistic effect." He’s now following rats with transplants for six months to see if the early protection/recovery holds up; he’s already past the three-month mark and to date,...

Newts which regrow their hearts

... the expression of the muscle-specific proteins is again normal, i.e. the cells have differentiated again, and have regained their characteristic properties. The researchers isolated the heart muscle cells and cultured them. In most of the cells, Braun and his colleagues were able to demonstrate the exi...

An AIDS-related virus tricks cells to become tumors, new Penn study finds

...LANA expression was blocked, the tumor suppressors again become stable suggesting a direct role of the viral protein in regulation of these major cell proteins," says lead author Erle Robertson, PhD, Professor of Microbiology and the Director of Tumor Virology at Penn's Abramson Cancer Center. Marked fo...

Reef warns of sea level rise

...eef yet known ?is a harbinger of what could happen again as global CO2 levels and temperatures rise during ...levels rose - before dropping by around 130 metres again as the ice-age returned and locked up water," Prof. McCulloch says. "Water temperatures off Margar...

RNA map provides first comprehensive understanding of alternative splicing

...ng machinery was able to assemble in a manner that again conformed to the predictions of the RNA map. In one case Nova blocked specific components of the splicing machinery, in another it enhanced the ability of this machinery to assemble the right way and use an alternatively spliced site that is otherwis...

Wild gorillas carriers of a SIV virus close to the AIDS virus

... genetic characteristics of the virus were present again in three gorillas living more than 400 km apart. P... primary reservoir of SIV/HIV viruses that crop up again in gorillas and in humans. As Martine Peeters of the IRD says, "the viruses of groups M and N are, v...

Taking 'chips' to the next level of gene hunting

...that reads across and a top layer that reads down, again using the crossword analogy. So if their experiment lights up a horizontal row of dots, the researchers learn that the data maps to the region of the genome contained in the bottom layer; likewise, if the experiment highlights a vertical row, the dat...

Amateur boxing linked to brain cell injury

...ge age 22 years) seven to 10 days after a bout and again three months later, after a rest from boxing. At the first assessment, the boxers reported how many hits to the head they received during the match and underwent physical and neurologic examinations; none showed signs of brain injury. The researche...

Successful lung cancer surgery not enough to break nicotine dependence in many smokers

...move early stage lung cancer picked up a cigarette again within 12 months of their potentially curative op...ark. Sixty percent of patients who started smoking again did so within two months of surgery. The study, led by researchers at Washington University School ...

Brains can recover from alcoholic damage but patients should stop drinking as soon as possible

...nts?brain volume at the beginning of the study and again after about 38 days of sobriety, and they found that it had increased by an average of nearly two per cent during this time. In addition, levels of two chemicals, which are indicators for how well the brain’s nerve cells and nerve sheaths are constit...

1 2 3 4 5 6 7 8 9