A partially exploding star, known as a nova, has recovered more quickly than expected, say scientists who have analysed new data from the ESA`s XMM-Newton X-ray satellite.

Nova explosions are not completely destructive phenomena. In fact, after an explosion occurs, the star recovers and starts shining again. Until now, astronomers have not known how long this process takes. In this case, however, the exploding star recovered in less than three years. This is surprising, given the fact that t

Perhaps, bioterrorists will not be able to spread lethal bacteria of anthrax in envelopes all over the world. Siberian biologists and physics have thought up how to adapt electron accelerator that is usually used for sterilizing medical equipment for decontamination of letters. To optimize the power of the accelerator they calculated how many bacteria could get into a human body when touching the letter infected and how many bacteria should be destroyed to avoid the tragedy.

For their experi

Genomes of multicellular organisms are one of the greatest mysteries of biology. The more is discovered about them, the more questions are to be answered. One of such questions is connected with the size of a genome. As is known since the middle of the 20th century, the level of organization of an organism does not depend on the genome size, i.e., on the amount of DNA in the nucleus of a cell. Sometimes, a primitive organism contains much more DNA than a mammal. For example, the genome of certain amo

The first clinical trial to compare directly two of the most widely-used drugs in advanced lung cancer, cisplatinin and carboplatin (both in combination with paclitaxel) – have concluded that the older drug, cisplatin, is the better treatment.

Patients given cisplatin and paclitaxel had better survival rates and their quality of life was just as good as patients receiving carboplatin and paclitaxel.

The phase III multi-national European trial involving 618 patients with advanced non

A research team at two Midwest universities has developed a new way to genetically alter cells in living mice, offering new possibilities in the war against cancer and other diseases.

Using a modified virus as a Trojan horse, a team led by Purdue University’s David Sanders has found a promising system to deliver genes to diseased liver and brain cells. By placing helpful genetic material within the outer protein shell of Ross River Virus (RRV), Sanders’ team was able to alter the

Companies that create HIV-AIDS drugs now have key information that could assist in making new medications with fewer side effects.

Researchers Henry Weiner, a professor of biochemistry at Purdue University, Steven Zollo of the National Institute of Standards and Technology and Lauren Wood of the National Cancer Institute, noted the similarity between HIV-AIDS treatment side effects and naturally occurring diseases. Certain HIV-AIDS treatment side effects, such as fat loss and insulin resista