The release of P from lake sediments, which occurs as a part of internal loading, may contribute a significant portion of the total P load to a lake. Phosphorus release rates from sediments in Spring Lake, Michigan, and the degree to which alum reduces P release from these sediments, were investigated during the summer of 2003. Triplicate sediment cores were sampled from four sites in the lake,...

In running, the spring-like axial behavior of stance limbs is a well-known and remarkably general feature. Here we consider how the rotational behavior of limbs affects running stability. It is commonly observed that running animals retract their limbs just prior to ground contact, moving each foot rearward towards the ground. In this study, we employ a conservative spring-mass model to test th...

THE TOOL-SET for PVM will comprise a set of integrated tools which can either be used individually or in concert. THE TOOL-SET will be composedof a debugger, a performance analyzer, a visualizer, a deterministic execution controller, a load balancer including a checkpointgenerator,and a parallel file system. All tools will be available under the GNU General Public License Agreement. First versi...