In this paper, we propose the hierarchical daisy architecture, which provides causal delivery of messages sent to any subset of processes. The architecture provides fault tolerance and maintains the amount of control information within a reasonable size. It divides processes into logical groups. Messages inside a logical group are sent directly, while messages that need to cross logical groups’...

A relief strategy called fair reachability analysis [5, 7, 11] is extended for the verification of daisy-chain protocols, which are defined in the communicating finite state machine model as networks of n ≥ 2 processes with a bidirectional, serial link structure. Fair reachability analysis is shown to decide the deadlock detection problem for daisy-chain protocols whose fair reachable global st...

many different plant species synthesize triterpenoid saponins as part of their normal programme of growth and development. examples include plants that are exploited as sources of drugs. interest in these molecules stems from their medicinal properties, antimicrobial activity, and their likely role as determinants of plant disease resistance. daisy (bellis perennis l.) accumulates triterpenoid ...

DAISY is a generic pattern matching system [Weeks et al, 1999] which was initially developed at the Natural History Museum in London (BM(NH) under the aegis of BBSRC and UK Government Darwin Initiative funding. The primary rationale for developing this system was to overcome a taxonomic impediment, and to provide a system which would allow non specialists to identify organisms within speciose a...

Meaningfully recognizing the extraordinary contributions of nurses is a key element in creating and sustaining healthy work environments. Publically honoring the work of nursing reinforces those actions and behaviors that patients, families, and colleagues truly value. A multi-site research study provided a 360-degree perspective of the impact this type of acknowledgment had on strengthening th...

For many positive odd integers n, whether prime, prime power or composite, the set Un of units of Zn contains members u, v and w, say with respective orders ψ, ω and π, such that we can write Un as the direct product Un = 〈u〉 × 〈v〉 × 〈w〉. Each element of Un can then be written in the form uvw where 0 ≤ i ≤ ψ − 1, 0 ≤ j ≤ ω− 1 and 0 ≤ k ≤ π− 1. We can then often use the structure of 〈u〉×〈v〉×〈w〉 ...

This paper presents an application of-synthesis to the robust control of a large exible space structure experimental testbed called Daisy. A perturbed left-coprime factorization of Daisy's dynamics is used to capture the uncertainty in the modes.-synthesis controller designs based on left-coprime factorizations of 46 th-order collocated and noncollocated models of Daisy are presented together w...

Statistical distributions of quasi-optimal paths in the traveling salesman problem: the role of the initial distribution of cities Revista Mexicana de Física, Solutions to Traveling Salesman Problem have been obtained with several algorithms. However, few of them have discussed about the statistical distribution of lengths for the quasi-optimal path obtained. For a random set of cities such a d...

We examine several resummation methods for computing higher order corrections to the finite temperature effective potential, in the context of a scalar φ4 theory. We show by explicit calculation to four loops that dressing the propagator, not the vertex, of the one-loop tadpole correctly counts “daisy” and “super-daisy” diagrams. Work supported in part by the U.S. Dept. of Energy under Contract...