BACKGROUND AND PURPOSES MR imaging is now widely used to monitor disease progression in patients with multiple sclerosis (MS). The purpose of this study was to explore the relationship between disability status and existing and new MR parameters in MS patients. METHODS Forty-one patients with clinically definitive MS were studied. MR imaging included T2- and T1-weighted imaging as well as gra...

The methodology of the Riemann-Hilbert (RH) factorisation approach for Lax-pair isospectral deformations is used to derive, in the solitonless sector, the leading-order asymptotics as t→±∞ (x/t∼O(1)) of solutions to the Cauchy problem for the defocusing non-linear Schrödinger equation (DfNLSE), i∂tu+∂ 2 xu−2(|u|−1)u=0, with finite density initial data u(x, 0)=x→±∞ exp( i(1∓1)θ 2 )(1+o(1)), wher...

Resource holding power (RHP), as expressed by gaining dominance, can be affected by extrinsic and intrinsic factors. Extrinsic factors that increase the RHP include e.g. prior exposure to the contest area. The pay-off asymmetry hypothesis was tested according to which there is an asymmetry in the value the resident's territory has for the resident and intruders, i.e. the resident loses more tha...

What attributes make some individuals more likely to win a fight than others? A range of morphological and physiological traits have been studied intensely but far less focus has been placed on the actual agonistic behaviours used. Current studies of agonistic behaviour focus on contest duration and the vigour of fighting. It also seems obvious that individuals that fight more skilfully should ...

BACKGROUND/AIMS Aim of this review is to assess the role and indications for primary sigmoidectomy with direct anastomosis for diverticulitis comparing it with the Hartmann's procedures. METHODS A literature search was performed using MEDLINE (PubMed), Google Scholar and The Cochrane Library and the articles from January 1990 until June 2011 were analyzed. All patients were divided into three...

The involvement of heme proteins in photometabolism, first suggested by Hill (1, 2), seems certain from results of recent enzyme studies (3-5) and observations on systems in viva using differential spectrophotometry (6-10). Of the many heme proteins which exist in intimate association with the photoactive pigments in the functional subcellular structures of photosynthetic tissues, only three ha...

Let M be a complete non-compact manifold satisfying the volume doubling condition, with index N and reverse n, n≤N, both for large balls. Assume Gaussian upper bound heat kernel, an L2-Poincaré inequality outside compact set. If 2<n, then we show that p∈(2,n), (Rp): Lp-boundedness of Riesz transform, (Gp): gradient semigroup, (RHp): Lp-Hölder harmonic functions, are equivalent to each other. Ou...

This study extends previous ones showing a link between direct aggression and size and strength among young men, which were informed by the evolutionary concept of resource holding power (RHP), using measures of size, strength, flexed bicep circumference and hand grip strength among a sample of young men from the Indian state of Mizoram. The study also examined the relation of these variables t...

Empirical evidence suggests that aggressiveness (willingness to enter into, or escalate an aggressive interaction) may be more important than the ability to win fights in some species. Both empirical and theoretical traditions treat aggressiveness as a distinct property from the ability (RHP) or motivation (subjective resource value) to win a fight. I examine how these three traits are clearly ...

As one of three gasotransmitters, the fundamental signalling roles of hydrogen sulphide are receiving increasing attention. New tools for the accurate detection of hydrogen sulphide in cells and tissues are in demand to probe its biological functions. We report the p-nitrobenzyl-based ratiometric fluorescent probe RHP-2, which features a low detection limit, high selectivity and good photostabi...