Tag: "years" at biology news
Adult survivors of childhood leukemia exercise less, worsening high risk for obesity and illness
... Though the addition of CRT to ALL therapy over 40 years
ago led to a marked increase in survival rates, re...s are less likely to receive CRT than they were 20 years
ago, Dr. Oeffinger says modern chemotherapy for ALL may also lead to decreased levels of physical ac...
Study sheds light on why humans walk on two legs
... in adult chimps," said Sockol, who worked for two years
to find an animal trainer willing to coax adult ch...frica in the late Miocene era some 8 to 10 million years
ago, when changes in climate may have increased the distance between food patches. That would have f...
Fruit fly gene from 'out of nowhere' is discovered
...es, which suggests it was created about 13 million years
ago, when these melanogaster subgroup species diverged from a common ancestor. And early evidence indicates that the new gene is functional (as opposed to being nonfunctional "junk" DNA) and is likely to express a protein involved in late stages o...
New joint replacement material developed at MGH put to first clinical use
...nt that hip implants could start loosening about 5 years
after surgery and would eventually fail completely. A team led by William Harris, MD, DSc, now director emeritus of the MGH OBBL, investigated this complication and found that long-term friction of the implants head against the polyethylene-lined joi...
Brain's 'hearing center' may reorganize after implant of cochlear device
...mal auditory pathways in the brain even after many years
of deafness. The results imply that the brain ca... implants, worked with deaf subjects from 16 to 74 years
old and found that younger subjects and those with a shorter history of deafness showed changes that...
Back to the future: Mastodon extends the time limit on DNA sequencing
...he living elephants that diverged about 26 million years
ago. The sequence was obtained from a tooth dated to 50,000130,000 years
ago, increasing the specimen age for which such palaeogenomic analyses have been done by almost a co...
1 in 4 NYC adults has elevated blood mercury levels
...and breastfeeding women. Among women 20-49 years
old in New York City, the average blood mercury level is 2.64 g/L (micrograms per liter), three times that of similarly-aged women nationally (0.83 g/L). Approximately one quarter of New York City women in this age group have a blood mercury leve...
Identified main genetic variants involved in response to HIV
... blood virus load in patients during the first two years
after the infection, and also to the rhythm of immune degradation as a result of the infection. This type of comparison, known as association study, permitted to deduct main genetic variations playing a central role in the control of viral infection....
Rise of dinosaurs in Late Triassic more gradual than once thought
... that they may have coexisted for 15 or 20 million years
or more." According to primary authors Randall I... in the Late Triassic, between 235 and 200 million years
ago, but it was only in the Jurassic period 200-120 million years
ago that dinosaurs dominated the p...
Scientists a step closer to understanding how anaesthetics work in the brain
...ction to be established: Weve known for over 20 years
now that these potassium channels in the human brain may be important anaesthetic targets. However, until now, weve had no direct way to test this idea. Because a single mutation can block the effects of anaesthetics on this potassium channel without...
Protein pulling -- Learning how proteins fold by pulling them apart
...rkinson's. Rice's new findings, which were three years
in the making, are available online and slated to ...her Jarzynski only discovered this relationship 10 years
ago," Kiang said. "It's a very powerful technique."...
Ice Age survivors in Iceland
...amphipod came to Iceland as early as 30-40 million years
ago, when the volcanic island was being formed. If our theory is right, we have discovered the oldest inhabitants of Iceland, and that can help us further understand how Iceland was formed, says Kristjansson....
Bird sized airplane to fly like a swift
...udy into the swifts flight characteristics in this years
April issue of Nature. During its life, a common swift flies a distance that goes up to five times the distance to the Moon and back. Lentink c.s. found the swift is such an able flyer because it continuously adjusts (morphs) its wings to the prevail...
UK scientists lift lid on genetics of coronary artery disease
...something that couldnt have been done at all a few years
ago. This study demonstrates just how important it is to invest in a healthy lifestyle to help protect your heart, especially if you think your family history might put you at increased risk of heart disease. Our thanks go to this dedicated researc...
Study explains how pathogens evolve to escape detection
...ystem. "Plant breeders often find that five or six years
after their release, resistant plant varieties bec...evelop a plant variety that stays resistant for 20 years
or more." Understanding why some varieties have more durable disease resistance is important to the ...
Jefferson scientist's patent dramatically improves
...t all of the buffers people have been using for 30 years
have been the wrong choice, he says, because the standard method is more expensive and takes longer. This solution that we found is literally a better, faster way of doing it. According to Dr. Brody, the patent hinges on the pairs finding, through ...
Nature's secrets yield new adhesive material
...iration for the geckel nanoadhesive came about two years
ago when he noticed an article about the adhesive ...h knew that researchers have attempted for several years
to produce synthetic adhesives based on the adherence strategy of the gecko. What caught his eye in...
Borlaug is golden
...acy continues to build on what he started. At 93 years
of age Borlaug continues as a passionate activist for the improvement of the agricultural capacity of the rural poor. He still works at CIMMYT as an advisor to the Director General with a special focus on new and dangerous wheat rust diseases. Borl...
Universal flu vaccine being tested on humans
...ibility of a pandemic, which occurs every 10 to 30 years
and causes more severe disease symptoms and a higher mortality rate. During the pandemic caused by the Spanish flu in 1918-1919, the number of deaths worldwide even rose to over 50 million. Why an annual vaccine? Todays flu vaccines need to be a...
Ability to listen to 2 things at once is largely inherited, says twin study
...tional twins festival in Twinsburg, OH, during the years
2002 through 2005. A total of 194 same-sex pairs of twins participated in the study (138 identical pairs and 56 fraternal pairs), representing ages 12 through 50. All twins received a DNA test to confirm whether they were identical or fraternal and a...
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