Archive: 12/5/2008

Some blood-system stem cells reproduce more slowly than expected

(PhysOrg.com) -- Investigators from Massachusetts General Hospital (MGH) have found a subpopulation of hematopoietic stem cells, the source of all blood and immune system cells, that reproduce much more slowly than previously ...

Dec 05, 2008
4.8 / 5 (5) 0

Physical chemist imitates structures found in nature

(PhysOrg.com) -- As a graduate student, Harvard physical chemist Joanna Aizenberg acquired a passionate curiosity about — of all things — sponges. She particularly liked the ones made of glass, whose apparent ...

Dec 05, 2008
4.6 / 5 (21) 0

Free Electron Lasers and You: An LCLS Primer

(PhysOrg.com) -- In a few short months, the Linac Coherent Light Source will start operation as the world's first hard X-ray free electron laser, pushing SLAC National Accelerator Laboratory to the frontier ...

Dec 05, 2008
4.1 / 5 (15) 8

Blight-resistant American chestnut trees nearing reality

(PhysOrg.com) -- The demise of the American chestnut is one of the great ecological disasters of our time, according to a chestnut expert in Penn State's College of Agricultural Sciences, who envisions a day ...

Dec 05, 2008
4.4 / 5 (12) 1

Photoacoustics useful in cancer research

(PhysOrg.com) -- Photoacoustics can be used to show the development of blood capillaries in and around a tumour. PhD student, Kiran Kumar Thumma, of the University of Twente (Netherlands) is the first to use ...

Dec 05, 2008
4.7 / 5 (3) 0

Boosting the numbers of rare moth

(PhysOrg.com) -- The University of Reading has collaborated with the National Trust on research which has resulted in one of the rarest moths in the UK returning to Derwentwater in the Lake District, nine ...

Dec 05, 2008
5 / 5 (1) 0

The benefits of punishment

(PhysOrg.com) -- The stick rather than the carrot could be a better approach to encouraging slacker colleagues to pull their weight in the workplace, research published in the prestigious journal Science has revealed.

Dec 05, 2008
3.2 / 5 (21) 5

Return of the Leonids

Astronomers from Caltech and NASA say a strong shower of Leonid meteors is coming in 2009. Their prediction follows an outburst on Nov. 17, 2008, that broke several years of "Leonid quiet" and heralds even ...

Dec 05, 2008
4.7 / 5 (7) 0