We call a garbage collector conservative if it has only partial information about the location of pointers and is thus forced to treat arbitrary bit patterns as though they might be pointers in at least some cases We show that some very inexpensive but previously unused tech niques can have dramatic impact on the e ectiveness of conservative garbage collectors in reclaiming mem ory Our most sig...

Parallel programs running on shared memory multiproces sors coordinate via shared data objects structures To en sure the consistency of the shared data structures programs typically rely on some forms of software synchronisations Unfortunately typical software synchronisation mechanisms usually result in poor performance because they produce large amounts of memory and interconnection network c...

The crimes committed by women in most societies account for only about 10 per cent. One would think that women are not inclined to commit crimes, but they dominate in some crimes. Women committed half the murders in nineteenth-century Lithuania. Violent deaths of infants constituted about half of the total cases of violent deaths. Infanticide was the most common type of murder in Lithuania in t...

1 I n t r o d u c t i o n Let G = (V, E) be a finite directed graph in which each vertex has at least one edge going out of it. Let w : E , { W , . . . , 0 , . . . , W} be a function that assigns an integral weight to each edge of G. Ehrenfeucht and Mycielski [EM79] studied the following infinite two-person game played on such a graph. The game starts at a vertex a0 E V. The first player choose...

O. I n t r o d u c t i o n We will begin by briefly recall ing the not ion of F-s t ruc tu re and some relevant related concepts; for fur ther details, see [CG1], [CG2], [CR] and sections 1 3 below. An F-structure, .f, on a manifold, M n, is a kind of general ized torus action. Specifically, it is a sheaf of Lie algebras, together wi th a homomorphism of this sheaf onto a sheaf of abel ian Lie ...

We aimed to verify doctor’s perception of the qualitative research method, via a qualitative study of interviews with questions on the academic profile of doctors and on the methodology. We interviewed 42 professionals, of which 18 had experience with the qualitative method and 24 with the quantitative method. The results showed that knowledge on the qualitative method was virtually nil among “...

Tourism and other kinds of local development have become important elements in generating employment in rural Ireland. Yet, despite a commitment to local participation and to gender auditing, women are typically under-represented in structures promoting tourism and other kinds of development at local level (Kearney, et al., 1995). Using documentary evidence, this paper first describes this phen...