Manipulation of pointers in shared data structures is an important communication mechanism used in many parallel algorithms. Indeed, many fundamental algorithms do essentially nothing else. A Parallel Pointer Machine, (or PPM ) is a parallel model having pointers as its principal data type. PPMs have been characterized as PRAMs obeying two restrictions | rst, restricted arithmetic capabilities,...

The Purple Crow LiDAR (PCL) was built to measure short and long term coupling between the lower, middle, and upper atmosphere. The initial component of my MSc. project is to automate two key elements of the PCL: the rotating liquid mercury mirror and the Zaber alignment mirror. In addition to the automation of the Zaber alignment mirror, it is also necessary to describe the mirror’s movement an...

years, like Lake Vostok, underneath the eponymous Russian research station at 77 degrees South. One of the largest lakes on our planet, Lake Vostok is comparable in volume to Lake Ontario. Back in 1998, a research team drilled around three kilometres deep into the ice shield stopping only a few hundred metres above the lake surface. The lower parts of the ice core, believed to consist of frozen...

Psychotic illnesses (schizophrenia and schizoaffective and affective psychosis) have a lifetime prevalence of 2–3% and probably occur at a similar rate in all human societies. No etiologically significant environmental precipitants have been identified, and this suggests that these diseases are primarily genetic. Brain studies reveal that in schizophrenic patients, development of cerebral asymm...

As the demand for high-speed communication both in wired and in wireless systems increases, the optical fiber communication systems have been developed in such a way that the information transmission capacity through an optical fiber exceeds terabits per second. As the data speed increases, the packet switching network is expected to advance from electronic packet switching to all-optical packe...