In the News
A New Brake On Cellular Energy Production Discovered
A condition that has to be met for the body to be able to keep warm, move and even survive is that the mitochondria - the cells'power stations - release the right amounts of energy. Scientists have now identified the first known factor that acts as a brake on cellular energy production. Nutcracker Ballet
Information about current performances and history of the creation of the "The Nutcracker"ballet (based on a story by E.T.A. Hoffman, with music by Peter Ilyich Tchaikovsky). Features an overview of the story, music clips, a list of ballet performances listed by country and state, and reviews of selected performances. Also includes a list of movie versions of the ballet. Note: Includes commercial content. From an enthusiast. Earth To Mars: NASA Tries To Regain Communications With Surveyor Orbit
Engineers are striving to restore full communications with NASA's Mars Global Surveyor on the 10th anniversary of the spacecraft's Nov. 7, 1996, launch. The orbiter is the oldest of five NASA spacecraft currently active at the red planet. Environmental disaster in southern Spain compared with Cretaceous mass
Researchers in Spain have compared the disaster caused by the Aznalcóllar spillage in the Doñana National Park in Andalusia 11 years ago with the biggest species extinction known to date. What do these two disasters have in common? The scientists say that carrying out comparisons of this kind will make it possible to find out how ecosystems recover following mass extinctions. Feb. 4, 1902: Lucky Lindy
Today is the birthday of history's most famous -- and infamous -- aviator. Compiled by Tony Long. Linus Pauling and the Race for DNA
This site explores one of the greatest scientific achievements of the twentieth century: the legendary race for the discovery of the structure of deoxyribonucleic acid, or DNA, the basic foundation of life. Features over 800 scanned manuscripts, letters, communications, photographs, audio clips, video excerpts, and rare documents never previously displayed. Includes a chronological illustrated narrative written from Linus Pauling's perspective. From the Ava Helen and Linus Pauling Papers, Valley Library, Oregon State University. New Discovery Blurs Distinction Between Human Cells And Those Of Bacte
UCLA biochemists reveal the first structural details of a family of mysterious objects called microcompartments that seem to be present in a variety of bacteria, and the first high resolution insights into how they function. The discovery blurs the distinction between eukaryotic cells and those of prokaryotes by showing that bacterial cells are more complex than imagined. Europe's flora is becoming impoverished
With increasing species richness, due to more plant introductions than extinctions, plant communities of many European regions are becoming more homogeneous. The same species are occurring more frequently, whereas rare species are becoming extinct. It is not only the biological communities that are becoming increasingly similar, but also the phylogenetic relations between regions. These processes have led to a loss of uniqueness among European flora. Life Cycle Of A Protein Observed With Single-Molecule Resolution
Using a sensitive, single-molecule measurement technique, researchers at the University of Illinois at Urbana-Champaign have observed the life cycle of RecA, a protein that plays a major role in repairing damaged DNA. Protein on protein action
NMR has allowed German researchers to investigate the cooperative binding of DNA to an important protein involved in suppressing tumour growth in our bodies. The binding of p53 to DNA is regulated by protein-protein interactions through a double salt bridge, they have found. The finding suggests that this salt bridge might be crucial to protecting us from certain types of cancer and fixing it when it malfunctions could provide a new avenue for anticancer drug research.
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