News tagged with cell population

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Wires turn salt water into freshwater

(Phys.org) -- As a rising global population and increasing standard of living drive demand for freshwater, many researchers are developing new techniques to desalinate salt water. Among them is a team of scientists ...

Jun 08, 2012 feature
4.3 / 5 (37) 13 | with audio podcast

Cheating favors extinction

Cooperative behaviour is widely observed in nature, but there remains the possibility that so-called 'cheaters' can exploit the system, taking without giving, with uncertain consequences for the social unit ...

Apr 30, 2013
4.1 / 5 (16) 70 | with audio podcast

DNA nanorobots find and tag cellular targets

Researchers at Columbia University Medical Center, working with their collaborators at the Hospital for Special Surgery, have created a fleet of molecular "robots" that can home in on specific human cells ...

Aug 07, 2013
5 / 5 (10) 0 | with audio podcast

Why innovation thrives in cities

In 2010, in the journal Nature, a pair of physicists at the Santa Fe Institute showed that when the population of a city doubles, economic productivity goes up by an average of 130 percent. Not only does total productivity increa ...

Jun 04, 2013
4.5 / 5 (8) 0 | with audio podcast

Sweet news for stem cell's 'Holy Grail'

(Phys.org)—Scientists have used sugar-coated scaffolding to move a step closer to the routine use of stem cells in the clinic and unlock their huge potential to cure diseases from Alzheimer's to diabetes.

Feb 26, 2013
5 / 5 (7) 0 | with audio podcast

Broccoli component limits breast cancer stem cells

A compound derived from broccoli could help prevent or treat breast cancer by targeting cancer stem cells -- the small number of cells that fuel a tumor's growth -- according to a new study from researchers at the University ...

May 03, 2010
5 / 5 (5) 2

Kryptonite for cancer cells

(Phys.org) —Every available cancer drug is susceptible to resistance, according to Mansoor Amiji, Distinguished Professor and chair of the Department of Pharmaceutical Sciences. Tumors grow more quickly ...

Mar 19, 2013
5 / 5 (5) 1

Early warning signs of population collapse

Many factors—including climate change, overfishing or loss of food supply—can push a wild animal population to the brink of collapse. Ecologists have long sought ways to measure the risk of such a collapse, ...

Apr 10, 2013
3.8 / 5 (6) 0 | with audio podcast

Surprises from the ocean: Marine plankton and ocean pH

The world's oceans support vast populations of single-celled organisms (phytoplankton) that are responsible, through photosynthesis, for removing about half of the carbon dioxide that is produced by burning fossil fuels – ...

Jun 21, 2011
4.4 / 5 (5) 3 | with audio podcast