Honeybees communicate by dancing. The dances tell worker bees where to find nectar. A UC Riverside study reports that under natural foraging conditions the communication of distance and direction in the dance language can increase the food collection of honeybee colonies. The study also confirms that bees use this directional information in locating the food sources advertised in the dance.

Based on work done in 2001 in the Agricultural Experiment Station at UC Riverside, P. Kirk Visscher,

High-power ultrasound, currently used for cell disruption, particle size reduction, welding and vaporization, has been shown to be 99.99 percent effective in killing bacterial spores after only 30 seconds of non contact exposure in experiments conducted by researchers at Penn State and Ultran Labs, Boalsburg, Pa.

In the experiments, bacterial spores contained in a paper envelope, were placed slightly (3mm) above the active area of a specially equipped source of inaudible, high frequency (70

In the battle against cancer, Virginia Tech researchers have developed a potential warhead to better kill cancer cells, a new missile to deliver the warhead more efficiently to the diseased areas, and a new detonation device once the warhead is in place.

In a cross-disciplinary effort, the researchers, using photodynamic therapy (PDT), have obtained results in three different areas that, used together, have the possibility of providing more efficient, less invasive, and more specific treatm

Scientists at the University of Pennsylvania School of Veterinary Medicine have found a new wrinkle in the developmental biology dogma that cell differentiation occurs irreversibly as stem cells give rise to increasingly specialized types of offspring cells. The researchers have shown that certain mouse cells retain an ability to oscillate between very distinct blood cell types — B-cells and macrophages — long after what has been commonly regarded as the point of no return.

These latest fi

A Phase II clinical trial conducted at Duke University Medical Center and five other U.S. institutions has shown that an agent made of purified human hemoglobin appears safe and may be effective when used instead of transfused human blood to replace blood lost during heart surgery.

If the benefits of the agent, known as hemoglobin raffimer, are proven in subsequent Phase III clinical trials, physicians would not need to use as much donated blood during surgery, the researchers said. An esti

In face of changes in precipitation variability, climatic extremes

What does Kansas’ weather and life have in common? In the words of Forrest Gump, both are like a box of chocolates. “You’re never sure what you’re going to get.” Rain or drought. Drought or rain.
Concerns about future climate changes resulting from human activities often focus on the effects of increases in average air temperatures or changes in average precipitation amounts. But climate models also