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Yeast models of cell death and survival mechanisms

European scientists investigated differences in the genomes of various distantly-related yeast and their effects on cell survival. Results may provide insight into cell death induced by free radicals.

NASA image: Forest fires near James Bay, Quebec

At present the forest fires plaguing the area near James Bay in Quebec are causing air quality problems in the area and as far away as Maine. According to CBC News on July 02, 2013, "A smog warning is in effect for most of ...

NASA image: Agricultural fires in India October 18, 2013

The Indian state of Punjab has two growing seasons—one from May to September and another from November to April. In November, Punjab farmers typically sow crops such as wheat and vegetables; but before they do that, farmers ...

The periodic motion of flexible knots, and the connection to DNA

Can the topology of microobjects influence the way they move in a fluid? Experiments and simulations of Polish and Swiss researchers published in the Physical Review Letters show that the dynamics of elastic chains settling ...

New invention saves energy, health, climate

A new Danish invention could cut energy use in buildings by 25 percent by creating a better indoor climate. The "CleanAir" invention was recently patented by a researcher in atmospheric chemistry at the University of Copenhagen. ...

Study looks at early Navajo use of smoke signals

(AP) -- Archaeologists and volunteers armed with special flares will fan out over part of the Four Corners region on Saturday to study how early Navajos could have used smoke signals to warn against invaders.

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