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2011-11-02 09:01:58

Stromal cells, as distinct from hematopoietic cells, are an essential component of the bone marrow microenvironment and are necessary for the long-term maintenance of hematopoietic stem cells (HSCs) in vitro. Previous studies have shown that stromal cells regulate the proliferation and differentiation of HSCs through the production of diffusible hematopoietic regulatory factors and extracellular matrix, and through physical cell-cell interactions involving adhesion molecules and gap...

2011-10-31 10:14:47

Study's authors show blood vessels support lung regeneration and their findings could potentially open the door to therapy for lung disorders Researchers at Weill Cornell Medical College say they have taken an important step forward in their quest to "turn on" lung regeneration -- an advance that could effectively treat millions of people suffering from respiratory disorders. In the Oct. 28 issue of the journal Cell, the research team reports that they have uncovered the biochemical...

2011-08-10 22:49:26

One cites less dependency on oil, the other new farming practices Two new UC Irvine papers reach markedly different conclusions about why methane, a highly potent greenhouse gas, unexpectedly leveled off near the end of the 20th century. They appear today in the journal Nature. Both note that after decades of increases due to worldwide industry and agriculture, the tapering off of the hazardous hydrocarbon in the atmosphere "“ which began in the 1980s "“ was remarkable. "It was an...

2011-06-21 12:05:34

Heavy and prolonged snowfall can bring about unexpected conditions that encourage fungal growth, leading to the death of plants in the Arctic, according to experts. A new international study confirms that whilst snow has an insulating effect which helps plants to grow bigger, heavy and prolonged snow can, in certain circumstances, also encourage the rapid and extensive growth of killer fungal strains. The research results, published in the journal Nature Climate Change, show for the first...

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2011-06-21 06:20:00

The world's oceans are declining much faster than previously believed, a consortium of ocean experts warned on Monday. Ocean life is "at high risk of entering a phase of extinction of marine species unprecedented in human history," the scientists said in their report, blaming the problem on pollution, overfishing and other man-made causes that are acting simultaneously in ways not seen before. The panel of 27 of the world's top ocean experts said these conditions are pushing the oceans to the...

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2011-05-11 08:23:04

Debate about how to replace Seattle's deteriorating waterfront highway has centered on uncertainties in the project's price tag. Drilling a deep-bore tunnel and building an underground highway is estimated to cost around $4 billion, but some worry the final price could be higher, as it was for Boston's infamous Big Dig. University of Washington statisticians have, for the first time, explored a different subject of uncertainty, namely surrounding how much commuters might benefit from the...

2011-05-10 15:18:10

Reef fishes and many other marine species live all their adulthood in one place but early in their lives, when they're eggs and larvae, spend a short period of time drifting and swimming in the open ocean. It seems intuitive that the duration of this open water period should determine the geographic extent over which species are found as species that spend longer drifting at sea are likely to reach greater distances. Interestingly enough, numerous studies have consistently failed to find any...

2011-04-06 11:50:30

Scientists studied the global influence of human population on corals reefs and were surprised to find that highly diverse reef fish systems are the most vulnerable to human threats In an unprecedented collaborative analysis published in the journal PLoS Biology, scientists from 49 nations demonstrated that the ability of reef fish systems to produce goods and services to humanity increases rapidly with the number of species. However, growing human populations hamper the ability of reefs to...

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2011-03-28 09:45:31

By M.B. Reilly, University of Cincinnati UC researchers are strongly represented among the hundreds of presentations at the upcoming Society for American Archaeology meeting. In fact, one entire symposium session is dedicated to groundbreaking UC research on the agroforestry and water management of the ancient Maya. Thousands of international researchers will attend the March 29-April 3 Society for American Archaeology (SAA) annual meeting in Sacramento, Calif., presenting research at more...

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2011-03-10 14:19:54

Chimpanzees, gorillas and other primate, including humans, share similar aging rates and mortality gender gap A new study says chimps, gorillas and other primates grow old gracefully much like humans. The findings come from the first-ever multi-species comparison of primate aging patterns reported in the March 11 issue of Science. It was long thought that humans, who have relatively long life spans, age more slowly than other animals. But new research funded by the National Science...


Word of the Day
cenobite
  • One of a religious order living in a convent or in community; a monk: opposed to anchoret or hermit (one who lives in solitude).
  • A social bee.
This word comes from the Latin 'coenobium,' convent, which comes from the Greek 'koinobios,' living in community.
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