ROCHESTER, Minn. -- A review of 62 Mayo Clinic patients who underwent cryoablation to treat cancerous kidney tumors shows that the patients are cancer free for up to two and a half years after having had the procedure.

Also called cryotherapy or cryosurgery, cryoablation is a procedure in which extreme cold is applied to the tumor using a cryoprobe, a hollow needle-like device filled with argon gas. The gas rapidly freezes the targeted tumor.

As this study and others continue to show, cryoablation appears to be an effective treatment for cancerous kidney tumors.

Call for adequate initial system to produce insights, forecasts useful to public, policy makers

Speedy diagnosis of the temper and vital signs of the oceans matters increasingly to the well being of humanity, says a distinguished partnership of international scientists urging support to complete a world marine monitoring system within 10 years.

The Partnership for Observation of the Global Oceans (POGO) says warming seas, over-fishing and pollution are among profound concerns that must be better measured to help society respond in a well-informed, timely and cost-effective way.

“A system for ocean observing and forecasting that covers the world’s oceans and their major uses can reduce growing risks, protect human interests and monitor the health of our precious oceans,” say

A variant of the gene CDC2 could possibly be used as a risk marker for Alzheimer’s disease. The gene variant is considerably more common among Alzheimer’s patients. This is shown in a dissertation from the Sahlgrenska Academy at Göteborg University in Sweden.

Alzheimer’s disease has several different causes. Since many patients have a close relative who also developed the disease, heredity is believed to be one of the most important factors.

“There is a previously identified Alzheimer’s gene that indicates an elevated risk of developing the disease, but we want to find more genes with a strong connection to Alzheimer’s.

Scientists from the Helmholtz Centre for Infection Research (HZI) have discovered a class of natural substances that are produced by soil bacteria and prevent somatic cells from dividing. After years of in-depth research, the US pharmaceuticals company Bristol-Myers Squibb is now launching this agent on the American market as a treatment for cancer.

The epothilones that Prof. Gerhard Höfle and Prof. Hans Reichenbach of the HZI have been studying for more than 20 years are produced by myxobacteria living in the soil. Epothilones block the somatic cell components known as microtubules, preventing the cells from dividing any further and causing them to die off and decompose.

Chemists from the University of Delaware, in collaboration with a colleague at the University of Wisconsin, have set a new world record for the shortest chemical bond ever recorded between two metals, in this case, two atoms of chromium.

The distance? A minuscule 1.803 Angstroms, which is on the order of a billionth of the thickness of a human hair.

The chemists weren't driven by the Guinness Book of World Records or even a friendly bet. As is often the case in science, they discovered the molecule, which has a quintuple (i.e., fivefold) bond, quite by accident.

The van der Waals force, a weak attractive force, is solely responsible for binding certain organic molecules to metallic surfaces. In a model for organic devices, it is this force alone that binds an organic film to a metallic substrate. This data, recently published in Physical Review Letters, represents the latest findings from a National Research Network (NRN) supported by the Austrian Science Fund FWF. These findings mean that numerous calculation models for the physical interactions between thin films and their carrier materials will need to be revised.

Although they fulfil complex functions when used, for example, as computer chips, inorganic semiconductors have a simple construction that greatly limits their application.