This paper describes various techniques of accessing objects hidden behind obstacles in virtual environments. We show some of well known interaction techniques that are suitable for usage in this case. Next, we introduce new Head Manipulator method and several aids that allow a user to change the visibility of objects. We propose several combinations of interaction techniques and discuss their ...

An earlier study showed that low attendance at section 63 courses of continuing education was not explained by dissatisfaction with content or methods employed in these programmes. In this enquiry to the same sample of 105 general practitioners, several additional factors were studied related to enjoyment of professional role, practice skills and perceived obstacles to continuing education. Thi...

In this work a mathematical approach based path planning of actor which uses equation of a straight line passing through two points is proposed to extinguish forest fires. Forest domain is considered as a square area and is tessellated into n x n cells (small squares) of desired size. The Actor which performs actions similar to the actions performed by a robot is assumed to be available at one ...

F a c u l t y M e n t o r Jerry L. McCullough College of Medicine

We consider the problem of dividing a territory into sub-regions so as to balance the workloads of a collection of facilities or vehicles over that territory. We assume that the territory is a connected polygonal region, i.e. a simply connected polygon containing a set of simply connected obstacles. The territory also contains a collection of facilities, represented by a set of n fixed points i...

Consider a group of mobile finite automata, referred to as agents, located in the origin of an infinite grid. The grid is occupied by obstacles, i.e., sets of cells that can not be entered by the agents. In every step, an agent can sense the states of the co-located agents and is allowed to move to any neighboring cell of the grid not blocked by an obstacle. We assume that the circumference of ...

This paper addresses the human aspects of change at a time when the rapid wide-spread implementation of a new infostructure has become the cornerstone of national security policies. The author explores the behavioral characteristics of human beings from a point of view that is not based on inter-human comparisons, but on an examination of the innate physical, biological, intellectual, emotional...