Multi-Level Transactions (MLT) o er a useful framework for increasing transaction concurrency in database systems. In this paper, we develop various approaches to implementing MLT in a shared disk multi-node system. By combining correctness and implementation speci cations, we present concrete insights into the resulting tradeo s between the degree of concurrency, the complexity of recovery, an...

Please note: Publication in this working paper series is intended to facilitate discussion only and so does not preclude publication elsewhere.

This paper is an updated version of the lectures given at the XXIX International Meeting on Fundamental Physics in Sitges, Barcelona (February 2001). The measurements performed at LEP and SLC have substantially improved the precision of the test of the Minimal Standard Model. The precision is such that there is sensitivity to pure weak radiative corrections. This allows to indirectly determine ...

In the present paper, we discuss one of the many processes arising in the context of supply chain management, namely production planning. We focus on one type of production planning models called capacitated lot sizing models. These models appear to be well suited for the usually rather in exible production resources found in the process industries. We review the literature on single-level sing...

The operation of the SLD detector at the SLC, the only existing high energy linear col-lider, is a good place to address the question of the feasibility of operating a sophisticated cylindrical geometry detector in a high energy and/or luminosity environment. Performance aspects of the SLD relevant to this question are presented, along with a qualitative discussion about the extrapolation to hi...

Since 1960s, organizational commitment and its antecedents studied from a single– level view; but the study by taking multilevel approach received less attention. In this research, a conceptual cross– level model of organizational commitment antecedents proposed and tested. Data obtained from 461 faculty members of Tehran major universities. Hierarchical linear models examined using HLM6.08. Re...