Tag: "years" at biology news
How plants learned to respond to changing environments
...not until the flowering plants evolved 300 million years
ago that plants gained the ability to repress grow.... The lycophyte group, which evolved 400 million years
ago, were the first plants to evolve vascular tissues - specialized tissues for transporting water a...
CU researchers discover evidence of very recent human adaptation
...rgence of genes from a common ancestor millions of years
ago -- by comparing an individual human to a chimpanzee or mouse, for example, or by comparing genetic variation in protein coding genes among humans to differences between humans and a chimpanzee. But this study scanned genome sequences that compare...
EMBL expands to Australia
...aid Iain Mattaj, EMBLs Director General. In recent years
Australia has become a central player in the landscape of molecular biology. With its special expertise, for example in the fields of medical epidemiology and stem cell research, it will be an excellent complement to EMBLs focus on basic research in ...
Has science unearthed the Holy Grail of pain relief?
...able to turn the evolutionary clock back a billion years
to see how a more primitive P2X molecule functions. The team discovered that there was only a 10% similarity between human P2X and the slime mould equivalent. They were therefore able to deduce from evolutionary theory that it was these similar par...
5 OHSU faculty members singled out for honors
...ute. Bell, who is retiring, was honored for his 42 years
of leadership at NSI and in the larger community. The awards committee cited him for providing a mature, stabilizing influence in the politics and administration of our scientific community. In his own research he has studied the central processing o...
Longest study finds reef fish need longer break
...s. With nearly continuous data spanning some 37 years
from four national marine parks off the coast of K...is that species diversity peaked and stabilized 10 years
after a marine park was closed to fishing. The recovery rates of different families and species, how...
Illinois-based study of energy crops finds miscanthus more productive than switchgrass
...5 and 2006 growing seasons. The averages from two years
data showed that Miscanthus gained 33% more carbon than switchgrass. Integrated measurements also showed that the Miscanthus leaf area was 45% greater than switchgrass and that Miscanthus plants grew an average of eleven days longer than switchgrass...
Citrus greening continues to spread in citrus growing areas
... to yellow, decline, and possibly die within a few years
of infection. Spread by an insect, the Asian citrus psyllid, citrus greening has significantly impacted citrus production in Asia, Africa, and Brazil. "The threat of this disease spreading to other citrus-growing states definitely exists, especial...
Homestake strikes gold again
...een working on the Homestake proposal for over six years
and are delighted that the NSF's comprehensive rev...im a share of the 2002 Nobel Prize in physics. Two years
after mining operations ceased, Governor Rounds established a project to oversee transfer of the Hom...
Nearly 90 percent of babies receive recommended newborn screening tests
...d or treated to prevent severe consequences. Two years
ago, only 38 percent of infants were born in state... of these 29 core conditions. As a result of four years
of intensive advocacy efforts by March of Dimes chapters and their partners, that percentage has inc...
Norwegian council names ASU researcher 'Outstanding Young Investigator'
...he U.S. equivalent of about $1.6 million over four years
from this award to support her research in understanding the genetic and physiological basis of life history regulation in honeybees at the Norwegian University of Life Sciences Department of Animal and Aquacultural Sciences. She emphasizes the imp...
Study finds Western-style 'meat-sweet' diet increases risk of breast cancer in postmenopausal women
...en from the Shanghai Breast Cancer Study, 25 to 64 years
of age, who were newly diagnosed with breast cancer from August 1996 to March 1998. Controls were selected from the Shanghai Resident Registry of permanent residents in urban Shanghai. Through in-person interviews with the Shanghai study participa...
Fat horses face health problems
...006. They studied 300 horses, ranging from 4 to 20 years
old from 114 farms, chosen randomly from over 1,000 animals in the VMRCVMs field service horse population. The horses were studied between 6 a.m. and 12 noon, prior to any grain or concentrate consumption, which can alter glucose and insulin level...
Neutral evolution has helped shape our genome
...10-million-year period centered roughly 54 million years
ago right around the time when the first primates...mmals, but during the primate emergence 54 million years
ago, they accumulated and spread through the small early primate populations precisely because they ...
New gene mutation identified in common type of dementia
... variable age at onset, which ranged from 35 to 87 years
in the family members who inherited the same mutation. Our future research will try to identify the modifying factors responsible for the severity of the disorder, said Rogaeva. Rogaeva says their studies will also try to identify the second gene...
It don't mean a thing if it ain't got that (modern) swing
...g slower and broader, just as it did over those 24 years
in Tioga Pass. Derryberry suspects there is an environmental component to the change, because slower trills travel better through thicker foliage, and the foliage has indeed been growing thicker in many of her study areas. But there is also som...
Gene's activity points to more lethal subtype of AML
...ix times more likely to relapse or die within five years
than are patients with low ERG expression followin...ng in a separate group of 76 AML patients under 60 years
of age. It also took into consideration other genetic markers that signal whether the disease will r...
First all-African produced genetically engineered maize is resistant to maize streak virus
...robiologist Jennifer Thomson are hopeful that this years
field trials will demonstrate not only the effectiveness of this technology in producing resistance to a destructive pathogen but also the safety of GE foods. Part of the objective is to provide seed that will be sold at a minimal profit to subsist...
Size and positioning of floral anthers facilitates pollen collection by bees
...nce of flowering plants on earth about 150 million years
ago had a profound effect on the evolution of many other kinds of organisms like insects, birds, and mammals, who became the pollinators and consumers of those plants, thus ensuring the continuity of both the plant and its animal partner. Scientist...
U-M, Israeli scientists report major advance in search for genes associated with colon cancer
...miology of Colorectal Cancer project, which for 10 years
has searched for clues to colon cancers genetic roots using samples from large numbers of people in Israel with known ancestral heritage. The project is funded by the National Cancer Institute, with additional funding from the Irving Weinstein Founda...
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