Employing high-tech, digital X-ray microtomography (microCT), Northwestern University scientists have discovered the way in which newts form new bone and cartilage during limb regeneration. Newts are a type of salamander, the only vertebrates capable of rebuilding lost structures such as limbs throughout their lifetimes.

Reporting in the January issue of Developmental Dynamics, Northwestern researchers Hans-Georg Simon and Stuart Stock showed that bone formation in a regenerated forelimb co

UF researchers report: Immunosuppressant drug prevents late rejection of transplanted kidneys

A drug that suppresses the immune system and prolongs the survival of donated kidneys in patients in the first months after transplantation also has the ability to block organ rejection over the long haul, University of Florida researchers have found.

The drug, mycophenolate mofetil, has been shown to decrease acute rejection by 50 percent compared with an older agent commonly used,

The scientists have not yet found the limits of the monkeys’ learning capacity

Psychologists have found evidence that monkeys have sophisticated abilities to acquire and apply knowledge using some of the same strategies as do humans. Specifically, the researchers have discovered that rhesus monkeys can learn the correct order of arbitrary sets of images and can apply that knowledge to answer new questions about that order.

Not only can the monkeys choose which image came f

Global Positioning Systems prepare a digital map for precise soil acidity identification

A study conducted by Iowa State University soil scientists suggests Global Positioning Systems (GPS) available to corn and soybean producers can markedly improve the management of soil acidity and lime application. The research is published in the January/February 2003 issue of Agronomy Journal.

Soil acidity can limit plant growth, and due to soil formation processes and management pract

Researchers using three dimensional computer modeling and wind tunnels have made the first accurate comparative measurements of muscle power output of birds in-flight to establish that physical structure, body mass, force and flight style all have major effects upon the magnitude and shape of a species’ power curve.

The research by Harvard integrative physiologist Andrew A. Biewener and fellow researchers was publicly funded through the National Science Foundation (NSF) and published in the

Animals lacking molecules called cryptochromes have abnormal sleeping patterns because their internal biorhythms are disrupted. New research from scientists at Stanford University, the University of North Carolina and SRI International published in the open access journal, BMC Neuroscience shows that mice lacking these molecules also respond differently to sleep deprivation. This suggests that cryptochromes are also involved in sleep homeostasis, the process by which we feel tired after we have been