The six-degree equations of flight in their classic form do not provide a proper physical perception due to a number of interferences. Nor do they render visible the important role of attack angles. In this study, attempts have been made to develop a complete set of 3D acceleration equations from the equations of normal and tangential acceleration αN=vωv, αt=v ̇. For this purpose, a coordinate s...

In this paper, I outline a general framework for cultural analysis consistent with an “analytic” approach to explanation in social science. The proposed provides coherent solutions thorny problems theory. These include providing definition of culture (and the “cultural”), specifying nature units (both simple and complex), outlining processes making possible episodes genesis, transformation, rep...

I was fascinated by the micrographs in this atlas. Once I had mastered the viewer, villi sprang from the page, while at the same time I peered into the depths of a mitochondrion. Because each image covers the entire visual field, I often felt as though I were strolling through the cell. I was equally fascinated by the authors' presentation of evidence suggesting that the classical interpretatio...

Object-oriented techniques have accrued popularity as the preferred paradigm of modern programming. Despite this, relational database management systems, with their underlying relational model, remain the top choice for persistence and retrieval of large quantities of data. Persistence mechanisms of data have not experienced the paradigm shift that the mechanisms of manipulation of data have. T...

File prefetching is an eeective technique for improving le access performance. In this paper, we present a le prefetching mechanism that is based on on-line analytic modeling of interesting system events and is transparent to higher levels. The mechanism, incorporated into a client's le cache manager, seeks to build semantic structures, called access trees, that capture the correlations between...

We report on our preliminary studies of a new controller for a two-link brachiating robot. Motivated by the pendulum-like motion of an ape's brachiation, we encode this task as the output of a \target dynamical system." Numerical simulations indicate that the resulting controller solves a number of brachiation problems that we term the \ladder", \swing up" and \rope" problems. Preliminary analy...