We examine a model of hadronic diffractive scattering which interpolates between perturbative QCD and non-perturbative fits. We restrict the perturbative QCD re-summation to the large transverse momentum region, and use a simple Regge-pole parametrization in the infrared region. This picture allows us to account for existing data, and to estimate the size of the perturbative contribution to fut...

In this paper, by using the extended Sturm-Liouville theorem for symmetric functions, we introduce the following differential equation ( ) 0 ) ( Φ ) 2 ) 1 ( 1 ( ) ( Φ 1 ) 1 ( 2 ) ( Φ ) 1 ( 2 2 2 2 = − − + + + ′ − + − + + − ′ ′ − x x x m a x mb a x x x x n n m n n m n m γ β α , in which ) 1 2 2 2 ( 2 + − + − = m a s s β ; ) 1 )( 1 2 ( 2 ) 1 2 2 2 ( 2 + − + + − + − + = m a r r m a s s γ and ( )( ...

the weighted semigroup algebra mb (s, w) is studied via its identification with mb (s) together with a weighted algebra product *w so that (mb (s, w), *) is isometrically isomorphic to (mb (s), *w). this identification enables us to study the relation between regularity and amenability of mb (s, w) and mb (s), and improve some old results from discrete to general case.

We study the consequences of supersymmetry breaking in the computation of the number of solutions of the Thouless-Anderson-Palmer (TAP) equations. We show that Kurchan argument that proves the vanishing of the prefactor of the Bray and Moore saddle point for the total number of solutions can be extended to solutions at any given free energy. We also provide a new simple argument for the vanishi...

In their landmark paper [1], Bray and Savin note that the constant parameters model used by their agents to form expectations is misspecified and that, using standard econometric techniques, agents may be able to determine the time-varying nature of the model’s parameters. Here, we consider the same type of model as employed by Bray and Savin except that our agents form expectations using a per...

We have already reported (Bray, Ryman & Thorpe, 1947) upon the fate ofp-hydroxybenzoic acid and its amide in the rabbit. The present paper gives the corresponding results for the oand m-isomers. The changes which these compounds might undergo are theoretically the same as those for the p-isomer, i.e. the hydroxyl group may be conjugated with either glucuronic or sulphuric acids and the carboxyl...

New and published reports of zoogonid digeneans from New Caledonian waters are recorded, including a description of Overstreetia cribbi n. sp. from Atherinomorus lacunosus. This species differs from its congeners in the detail of its circum-oral spination and some metrical features. Other new records are of: Diphterostomum plectorhynchi Machida, Kamegai & Kuramochi, 2006 in Diagramma pictum; Pa...

Sir, May I comment on the recent article under the above heading in the Archives (1973, 48, 923) where Bray and Beaven are given the credit for having discovered the role of pathogenic Esch. coli in infantile gastroenteritis. It would be a pity if the much earlier work of my former teacher A. Adam was to be forgotten. In 1923 he first identified special types of lactose-splitting Esch. coli as ...

It has now been established that both the simple and heterocyclic sulphonamides may undergo both acetylation and oxidation in the body (cf. Williams, 1945, 1946, 1947; Dobson & Williams, 1946; Stubbs & Williams, 1947; Bray, Neale & Thorpe, 1946; Gilligan, 1945; Scudi & Silber, 1944; Weber, Lalich& Major, 1943). In the simpler sulphonamides, such as the o-, mand p-aminobenzenesulphonamides, oxid...