Archive: 08/2/2007

Two Nicotine Addiction Puzzles Explained

The stranglehold of nicotine addiction leads to more than four million smoking-related deaths each year. Scientists at the California Institute of Technology have now explained two roots of that addiction. The discoveries ...

Aug 02, 2007
4.7 / 5 (9) 0

Immunity in social amoeba suggests ancient beginnings

Finding an immune system in the social amoeba (Dictyostelium discoideum) is not only surprising but it also may prove a clue as to what is necessary for an organism to become multicellular, said the Baylor College of Medicine ...

Aug 02, 2007
4.9 / 5 (8) 0

Unlocking proteins from their cellular shell

Applying physical stress to cells, researchers at the University of Pennsylvania have demonstrated that everyday forces can alter the structure of proteins tucked within cells, unfold them and expose new targets ...

Aug 02, 2007
4.5 / 5 (4) 0

Mythical Monster Hydra in the Petri Dish

In a story from Greek mythology, Hercules defeats the many-headed Hydra living in water. The story appears magical – monsters with several heads do not exist. Scientists from the Animal Ecology and Cell Biology Institute ...

Aug 02, 2007
3.8 / 5 (9) 0

Discredited Korean embryonic stem cells' true origins revealed

A report from researchers at Children's Hospital Boston and the Harvard Stem Cell Institute sheds new light on a now-discredited Korean embryonic stem cell line, setting the historical record straight and also establishing ...

Aug 02, 2007
3.4 / 5 (7) 0

Tunneling Electrons Do Math

Using a novel computing paradigm involving counting single electrons, computer engineers have designed nano-sized circuitry that allows tunneling electrons to perform mathematical division calculations.

Aug 02, 2007 feature
4.7 / 5 (56) 0

Electric fields have potential as a cancer treatment

Low-intensity electric fields can disrupt the division of cancer cells and slow the growth of brain tumors, suggest laboratory experiments and a small human trial, raising hopes that electric fields will become ...

Aug 02, 2007
4.8 / 5 (32) 0

Unravelling the random fluctuations of nothing

The dream of theoretical physics is to unite behind a common theory that explains everything, but that goal has remained highly elusive. String theory emerged 40 years ago as one of the most promising candidates for such ...

Aug 02, 2007
4 / 5 (29) 0