garbage collectors are occupationally exposed to a variety of airborne contaminants. the main objective of this study was to evaluate the respiratory health of garbage collectors. this study was carried out in fars province, south of iran. a group of 105 garbage collectors and 93 referent subjects were investigated. a standard questionnaire was administered to both groups. furthermore, subjects...

With the continued growth in interest in distributed systems, garbage collection is actively receiving attention by designers of distributed languages [Bal, 1990]. Distribution adds another dimension of complexity to an already complex problem. A comprehensive review and bibliography of distributed garbage collection literature up to 1992 is presented. As distributed collectors are largely base...

Garbage-producing and efficient programming languages such as Haskell, Lisp or ML have traditionally not been used for generating individual samples in realtime. The reason is a lack of garbage collector fast and predictably enough to make these languages viable alternatives to C and C++ for high performing audio DSP. This paper shows how conservative garbage collectors can be used efficiently ...

Modern embedded devices (e.g. PDAs, mobile phones) are now incorporating Java as a very popular implementation language in their designs. These new embedded systems include multiple complex applications (e.g. 3D rendering applications) that are dynamically launched by the user, which can produce very energy-hungry systems if they are not properly designed. Therefore, it is crucial for new embed...

Functional programming languages use garbage collection for heap memory management. Ideally, garbage collectors should reclaim all objects that are dead at the time of garbage collection. An object is dead at an execution instant if it is not used in future. Garbage collectors collect only those dead objects that are not reachable from any program variable. This is because they are not able to ...

Many garbage collectors on parallel computers are written in sequential languages, therefore thay are not portable across machines with different communication primitives. Moreover, the description of garbage collectors on distributed memory machines, which use asynchronous messages, is complex. We implemented a garbage collector for parallel object-oriented language Schematic by using Schemati...

A b s t r a c t . It is shown that the termination detection problem for distributed computations can be modeled as an instance of the garbage collection problem. Consequently, algorithms for the termination detection problem are obtained by applying trausformations to garbage collection algorithms. The transformation can be applied to collectors of the "mark-and-sweep" type as well as to refer...

Garbage collection has been a necessary evil of computer languages that employ dynamic data structures. The 1990’s has seen some significant technology shifts that present new challenges for automatic garbage collection. In particular, distributed systems are providing an economical approach to parallel processing. Many distributed garbage collection algorithms have been proposed but few have b...

Starting from a theoretical understanding of the issues involved in the implementation of a heap garbage collector in a logic programming system with built-in tabling, and from an actual collector that did not take tabling (i.e. suspended computations) into account we have build two working heap garbage collectors (one mark&slide, one mark&copy) for XSB on top of a CHAT implementation model for...