In the News
Mechanism Regulating Tooth Shape Formulation Found
One of the remaining challenges for evolutionary developmental studies of mammals, whose evolution is best known from their teeth, is how their tooth shape is altered during development. Researchers of the University of Helsinki together with their Japanese colleagues from the University of Kioto now propose a 'balance of induction' mechanism directing the placement of tooth shape features called cusps. Loss Of Sulphur Atom Reduces Activity Of Catalyst
Chemical catalysts used to produce clean fuels gradually become less active. Dutch researcher Bas Vogelaar believes that the loss of sulphur atoms might be an important cause of this. He investigated hydroprocessing catalysts which remove sulphur compounds from petrol and diesel. Jonas Salk and the Polio Vaccine
Collection of documents related to the development by Dr. Jonas Salk of a polio vaccine, the federal government plan to have the vaccine produced, the drop in polio cases since the vaccine was distributed widely in the U.S. starting in 1955. Provides data, reports, press releases, conference remarks, minutes of Cabinet meetings, photographs, and related material. From the Dwight D. Eisenhower Presidential Center. 'Regressive Evolution' In Cavefish: Natural Selection Or Genetic Drift
"Regressive evolution,"or the reduction of traits over time, is the result of either natural selection or genetic drift, according to a study on cavefish by researchers at New York University's Department of Biology, the University of California at Berkeley's Department of Integrative Biology, and the Harvard Medical School. Previously, scientists could not determine which forces contributed to regressive evolution in cave-adapted species, and many doubt the role of natural selection in this process. Brain Imaging Study May Hold Clues To Onset Of Schizophrenia In People
Images of brain activity may hold clues to the onset of schizophrenia in people at high risk for the disease, according to a study headed by psychiatry researchers at the University of North Carolina at Chapel Hill School of Medicine. Eelgrass Provides A Refuge From Predators For Some Fish Species
The meadows of eelgrass found in lagoons along the Atlantic seacoast have a long history of providing a habitat for fish and invertebrates of many species. Despite this long history, it has proven difficult to document and quantify the relationships between eelgrass cover and the abundance of fish and crabs on a larger scale. Hybrid systems get strengthened through diversity
Our everyday work and home lives are becoming increasingly dependent on complex computerized networks with built-in control systems. European researchers are working to make the controls more autonomous and intelligent. Patently Bad Move Gags Critics
A company finds a sneaky new way to silence security researchers: Claim that defeating its products infringes on patents. Commentary by Jennifer Granick. Implant-supported Overdentures Are A Successful Solution For Edentulou
The enticing aroma of a thick, juicy steak was a temptation Marvin Goodwin oftentimes avoided because his dentures made the meat difficult to chew. Now thathe's had implants placed to support his denture, he is no longer cautious of the foods he eats. Olympus Audio Recorder Is a Sonic Sponge
If you need a an audio recorder that sucks up fidelity from university lectures, concert halls or even an underground concert, the LS-11 from Olympus has you covered. Just don't think about using it as a media player.
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