Rutgers University physicists have performed computer simulations that show how electrons become one thousand times more massive in certain metal compounds when cooled to temperatures near absolute zero – the point where all motion ceases.

Cancer cells treated with carbon nanotubes can be destroyed by non-invasive radio waves that heat up the nanotubes while sparing untreated tissue, a research team led by scientists at The University of Texas M. D. Anderson Cancer Center and Rice University has shown in preclinical experiments.

In a paper posted Cancer, researchers show that the technique completely destroyed liver cancer tumors in rabbits. There were no side effects noted. However, some healthy liver tissue within 2-5 millimeters of the tumors sustained heat damage due to nanotube leakage from the tumor.

"These are promising, even exciting, preclinical results in this liver cancer model," says senior author Steven Curley, M.D., professor in M. D. Anderson's Department of Surgical Oncology.

Nursing mothers needn't worry. A new study shows that breastfeeding does not increase breast sagging. University of Kentucky plastic surgeon Dr. Brian Rinker and his colleagues conducted the study with patients at UK HealthCare Cosmetic Surgery Associates. The study found that breastfeeding does not adversely affect breast shape.

"A lot of times, if a woman comes in for a breast lift or a breast augmentation, she'll say 'I want to fix what breastfeeding did to my breasts'," Rinker said. As a result, Rinker decided to find out if breast sagging was a direct result of breastfeeding.

The running joke in science has always been that the metric system was invented by the French to combat English predominance culturally - and they got the measurement wrong.

Still, it caught on ( though the French calendar didn't ) and that International System of Units (SI) is used on everything from beer cans to Olympic races. But some of it still isn't entirely accurate, as discussed in Making A More Accurate Kilogram ( along with that same poke at the French ) because man-made objects can change.

The English could have the last laugh. U.K.

There are multiple reasons why the world is still plagued by diseases we cannot treat or vaccinate against and the overall complexity of the human immune system is one of them - in fact, say Danish researchers, each of our immune systems has a unique code-like mechanism that prevents it from being deceived.

They have developed a method to expose this crucial part of the immune system's defense mechanisms which could lead to entirely new vaccines and treatments.

The researchers from BioCentrum DTU and the Faculty of Health Sciences at the University of Copenhagen have created models of neural networks which can simulate how the immune system defends itself from disease.

A report that appears in the scientific journal Genome Research details the first assembly, annotation, and comparative analysis of the domestic cat genome (Felis catus).

The DNA of a 4-year-old Abyssinian cat named Cinnamon, whose well-documented lineage can be traced back several generations to Sweden, has been sequenced. Cinnamon is one of several mammals that are currently being analyzed using “light” (two-fold) genome sequence coverage. To make sense of Cinnamon’s raw sequence data, a multi-center collaboration of scientists leveraged information from previously sequenced mammalian genomes as well as previous gene-mapping studies in the cat.