some numerical and experimental investigations are made on the performance of five different hyperelastic constitutive models (second order polynomial, yeoh, arruda-boyce, ogden and marlow) in tension and compressionmodes. first, the results of the tensile and compression tests on a rubber sample were used to determine the parameters of the models by curve fitting methods. next, by using an alg...

A common approach in designing relational databases is to start with a universal relation schema, which is then decomposed into multiple subschemas. A good choice of subschemas can be determined using integrity constraints defined on the schema, such as functional, multivalued or join dependencies. In this paper we propose and analyze a new normal form based on the idea of minimizing overall st...

Given the fact that relational and object-relational databases are the most widely used technology for storing data and that XML is the standard format used in electronic data interchange, the process of converting relational data to XML documents is one that occurs frequently. The problem that we address in this paper is an important one related to this process. If we convert a relation to an ...

Artemia salina L.is an important model organism for the world ecosystem, which is very sensitive, easily available, allows to work in laboratory environment, used toxic effect studies, and gives safe results. This study was designed evaluate of water extract fresh underground parts some species five geophyte genera (Arum rupicola var. virescens (Stapf) P.C. Boyce, Cyclamen cilicium Boiss. &...

Pasteurella multocida Heddleston serovar 3 and 4 strains share a common lipopolysaccharide 1 biosynthesis locus but display both interand intra-strain lipopolysaccharide heterogeneity. 2 3 Marina Harper, Frank St. Michael, Marietta John, Evgeny Vinogradov, Jennifer A. Steen, 4 Lieke van Dorsten, Jason A. Steen, Conny Turni, Patrick J Blackall, Ben Adler, Andrew 5 D. Cox and John D. Boyce 6 7 Au...

Professor Danielsson (this journal 2000) argues that congestion externalities are solved if individual transferable quotas (ITQs) are introduced. This is in direct contrast to my own research (Boyce 1992, Corollary 1, p. 399). Danielsson raises an interesting question about how congestion externalities should be modeled. However, I argue that my own result is fundamentally correct, based on the...

Pfefferkorn, E. R. (Harvard Medical School, Boston, Mass.), Boyce W. Burge, and Helen M. Coady. Characteristics of the photoreactivation of pseudorabies virus. J. Bacteriol. 92:856-861. 1966.-Pseudorabies virus, killed with ultraviolet light and then allowed to adsorb to chick embryo tissue culture cells, can be photoreactivated by light of longer wavelengths. The photoreactivable sector is app...

We have previously shown that a Pasteurella multocida cexA mutant (PBA875) was impaired in capsule export and highly attenuated in virulence for mice (J. D. Boyce and B. Adler, Infect. Immun. 68:3463-3468, 2000). In this study we show that immunization with high, but not low, doses of PBA875 can confer significant protection against wild-type challenge. We have also constructed a genetically de...