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Scientists decode genome of Streptococcus sanguinis

Virginia Commonwealth University researchers have decoded the genome of a bacteria normally present in the healthy human mouth that can cause a deadly heart infection if it enters the bloodstream.

7 Apr 2007

Cylindrical nanoparticles deliver drugs to tumors

Researchers at the University of Pennsylvania School of Medicine & School of Engineering and Applied Science have discovered a better way to deliver drugs to tumors.

7 Apr 2007

Researchers discover how cells fine-tune oxygen use

Researchers at Johns Hopkins have discovered how cells fine-tune their oxygen use to make do with whatever amount is available at the moment.

7 Apr 2007

Bacterial endosymbionts are essential for the reproduction of a fungus

Endosymbiotic relationships, in which one organism lives within another, are striking examples of mutualism, and can often significantly shape the biology of the participant species.

7 Apr 2007

New methods for creating and detecting specific proteins

In their native form, the thousands of assorted proteins in our body are virtually indistinguishable.

5 Apr 2007

How auxin regulates TIR1 in plants provides clues to new treatments for human diseases

For the first time, scientists from the University of Washington School of Medicine, Indiana University Bloomington and the University of Cambridge have determined how a plant hormone -- auxin -- interacts with its hormone receptor, called TIR1.

5 Apr 2007

Selective binding of gold nanoparticles to the ends of rod-shaped viruses

Nanotechnology appears to be an unstoppable trend and it requires defined nanoscale building blocks and patterns.

5 Apr 2007

New understanding of the motivations that underlie acts of altruism

Beyond the lineage of primates, according to scientific gospel, social behavior is dictated primarily by competition for resources such as food, territory and reproduction.

4 Apr 2007

Geometry of viruses

A mathematician at the University of York has been awarded a Research Leadership Award of more than ,700,000 by the Leverhulme Trust to study the geometry of viruses.

4 Apr 2007

New method for the synthesis of diaryl sulphide

Although today there exists a number of methods for the synthesis of organic molecules (the main components of certain medicines, foods, additives, paints, fabrics, liquid crystals, etc.), in most cases toxic reagents and solvents have to be used.

4 Apr 2007

Pollen which is allergenic releases much greater amounts of nitric oxide and nitrite than a non-allergenic pollen

Hayfever is a major irritation for up to 20% of the population in most economically developed countries.

4 Apr 2007

Computer model behaves like humans on visual categorization task

Computers can usually out-compute the human brain, but there are some tasks, such as visual object recognition, that the brain performs easily yet are very challenging for computers.

4 Apr 2007

Communication between bacterial cells

To each other: by using signal substances they inform their neighbours as to whether or not it is worth switching certain genes on or off.

4 Apr 2007

Washington University study China's earliest modern human

Researchers at Washington University in St. Louis and the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) in Beijing have been studying a 40,000-year-old early modern human skeleton found in China and have determined that the "out of Africa" dispersal of modern humans may not have been as simple as once thought.

4 Apr 2007