Passive Entities Research Articles

Two models of concurrent objects

Two models of concurrent objects

Deadlock Detection and Avoidance for Shared Logical Resources

Logical resources are defined as shared passive entities that can be concurrently accessed by multiple processes. Concurrency restrictions depend upon the mode or manner in which a process may manipulate a resource. Models incorporating these single unit resources can be used to analyze information locking for consistency and integrity purposes. Mode compatibility is defined and used to derive dead-lock detection and avoidance methods. These methods generalize well-known deadlock results for single unit resources by permitting greater concurrency while still guaranteeing data consistency. This model is applicable to the standard shared (read-only) and exclusive (read-write) access modes as well as a useful subset of those proposed in the CODASYL DBMS report.

Tingenes radikale biografi. Etnografika analysert gjennom arbeidsgrupper

This paper explores the possibility of radicalizing the biography of things by analysing ethnographic items through a working group. e literature concerning the life of things and their biography concerns itself with how humans imbue things with meaning. ings themselves become portrayed as relatively passive, silent and inactive. An alternative is to explore how things (ethnographic items) enact the social situation of which they are a part. e assumption is that things are not enclosed passive entities. Rather, they e ect change. A working group analysis investigates how humans and nonhumans become with each other. As these entanglements unfold, new members in the assemblage cause change in the composition of the working group. is e ectuates the very dynamics of the assemblage. I explore the changes that ethnographic items undergo as they participate in cra practices, trade practices and museum practices.