'Sister' factors promote survival of blood-system stem cells
Stem cells of any kind are defined by their eternal nature, reproducing themselves and providing a pool of cells from which more differentiated tissues arise.
Feb 5, 2009
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05/02/2009
Single factor converts adult stem cells into embryonic-like stem cells
The simple recipe scientists earlier discovered for making adult stem cells behave like embryonic-like stem cells just got even simpler. A new report in the February 6th issue of the journal Cell, a Cell Press publication, ...
Feb 5, 2009
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Despite their diversity, pygmies of Western Central Africa share recent common ancestors
Despite the great cultural, physical, and genetic diversity found amongst the numerous West Central African human populations that are collectively designated as "Pygmies," a report published online on February 5th in Current ...
Feb 5, 2009
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Leukemia stem cells have more in common with embryonic stem cells than adult stem cells
Research using a mouse model of human leukemia has provided critical insight into the genetic factors related to the generation and maintenance of myeloid leukemia stem cells. The study, published by Cell Press in the February ...
Feb 5, 2009
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Researchers Control the Spin of Semiconductor Quantum Dot Shell States
Scientists at the Naval Research Laboratory (NRL) have recently demonstrated the ability to control the spin population of the individual quantum shell states of self-assembled indium arsenide (InAs) quantum dots (QDs). These ...
General Physics
Feb 5, 2009
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Exceptionally deep view of strange galaxy
(PhysOrg.com) -- The Coma Galaxy Cluster, in the northern constellation of Coma Berenices, the hair of Queen Berenice, is one of the closest very rich collections of galaxies in the nearby Universe. The cluster, also known ...
Astronomy
Feb 5, 2009
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Good liquid, bad liquid (Video)
For airline passengers everywhere, good news. Scientists have successfully tested a liquid explosive detection system that may eventually keep dangerous substances off airplanes. This comes barely two years after a plot to ...
Engineering
Feb 5, 2009
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Multi-teraflop computer system targets large-scale discovery projects
Penn State's Institute for CyberScience will target large-scale modeling, simulation and data analysis with a terascale advanced computing system, funded by the National Science Foundation's Major Research Instrumentation ...
Other
Feb 5, 2009
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Infant galaxies -- small and hyperactive
Galaxies, including our own Milky Way, consist of hundreds of billions of stars. How did such gigantic galactic systems come into being? Did a central region with stars first form then with time grow? Or did the stars form ...
Astronomy
Feb 5, 2009
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Fighting tomorrow's hackers
One of the themes of Dan Brown's The Da Vinci Code is the need to keep vital and sensitive information secure. Today, we take it for granted that most of our information is safe because it's encrypted. Every time we use a ...
Computer Sciences
Feb 5, 2009
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