BACKGROUND Recurrent wheezing (RW) during the first year of life is a major cause of respiratory morbidity worldwide, yet there are no studies on its prevalence at an international level. A study was undertaken to determine the prevalence of RW in infants during their first year of life in affluent and non-affluent localities. METHODS This international population-based study was performed in...

In healthy subjects a standard drink of either red wine (RW) or ethanol (EtOH) has no effect on muscle sympathetic nerve activity or on heart rate (HR), whereas two drinks increase both. Using time- and frequency-domain indexes of HR variability (HRV), we now tested in 12 subjects (24-47 yr, 6 men) the hypotheses that 1) this HR increase reflects concurrent dose-related augmented sympathetic HR...

Both random walk and respondent-driven sampling (RDS) exploit social networks and may reduce biases introduced by earlier methods for sampling from hidden populations. Although RDS has become much more widely used by social researchers than random walk (RW), there has been little discussion of the tradeoffs in choosing RDS over RW. This paper compares experiences of implementing RW and RDS to r...

Random walk (RW) or Continuous Time Random Walk (CTRW) are recurring Monte Carlo methods used to model convective and diffusive transport in complex heterogeneous media. Many applications can be found, including fluid mechanic, hydrology, and chemical reactors modeling. These methods are easy to implement, very versatile and flexible enough to become appealing for many applications because they...

Let G = (V, E) a graph. A set D ~ V is a weak dominating set of G if for every vertex y E V D there is a vertex xED with xy E E and d( x, G) ::; d(y, G). The weak domination number rw (G) is defined as the minimum cardinality of a weak dominating set and was introduced by Sampathkumar and Pushpa Latha in [6]. In this paper we present sharp upper bounds on rw(G) for general graphs involving the ...

The semilattice relevant logics ∪R, ∪T, ∪RW, and ∪TW (slightly different from the orthodox relevant logics R, T, RW, and TW) are defined by “semilattice models” in which conjunction and disjunction are interpreted in a natural way. In this paper, we prove the equivalence between “LK-style” and “LJ-style” labelled sequent calculi for these logics. (LKstyle sequents have plural succedents, while ...

The locus underlying hereditary resistance to the anticoagulant warfarin (symbol in the rat, Rw) was placed in relation to 8 positionally mapped gene-anchored microsatellite loci whose positions were known in the genome maps of the rat, mouse, and human. Rw segregated with the markers Myl2 (zero recombinants) and Itgam, Il4r, and Fgf2r (one recombinant each) during linkage analysis in a congeni...

For any finite word w on a finite alphabet, we consider the basic parameters Rw and Kw of w defined as follows: Rw is the minimal natural number for which w has no right special factor of length Rw and Kw is the minimal natural number for which w has no repeated suffix of length Kw. In this paper we study the distributions of these parameters, here called characteristic parameters, among the wo...

Risk-neutral (RN) and real-world (RW) densities are derived from option prices and risk assumptions, and are compared with densities obtained from historical time series. Two parametric methods that adjust from RN to RW densities are investigated, firstly a CRRA risk aversion transformation and secondly a statistical calibration. Both risk transformations are estimated using likelihood techniqu...