lAddy DP. When not to do a lumbar puncture. Arch Dis Child 1987 ;62:873-5. 2 Donald PR, Burger PJ, Becker WB. Paediatric meningitis in the Western Cape. A three year hospital-based prospective study. S Afr Med J 1986;70:391-5. 3Deeny JE, Walker MJI Kibel MA, Molteno CD. Arens LJ. Tuberculous meningitis in children in the Western Cape. Epidemiology and outcome. S Afr Med J 1985;68:75-8. 4Naughte...

We prove that a wide class of strongly proper forcing posets have quotients with strong properties. Specifically, we prove that quotients of forcing posets which have universal strongly generic conditions on a stationary set of models by certain nice regular suborders satisfy the ω1-approximation property. We prove that the existence of stationarily many ω1-guessing models in Pω2 (H(θ)), for su...

In this paper, we study the lattice and the Boolean algebra, possibly closed under quotient, generated by the languages of the form u∗, where u is a word. We provide effective equational characterisations of these classes, i.e. one can decide using our descriptions whether a given regular language belongs or not to each of them.

Let S be an unramified regular local ring having mixed characteristic p > 0 and R the integral closure of S in a pth root extension of its quotient field. We show that R admits a finite, birational module M such that depth(M) = dim(R). In other words, R admits a maximal Cohen-Macaulay module.

We use moduli spaces for covers of the Riemann sphere to solve regular embedding problems, with prescribed extendability of orderings, over PRC fields. As a corollary we show that the elementary theory of Qtr is decidable. Since the ring of integers of Qtr is undecidable, this gives a natural undecidable ring whose quotient field is decidable.

We show that the least genus of any compact Riemann surface S, admitting a simple Suzuki group G = Sz(^) as a group of automorphisms, is equal to 1 +|G|/40. We compute the number of such surfaces S as the number of normal subgroups of the triangle group A(2,4,5) with quotient-group G, and investigate the associated regular maps of type {4,5}.

In this paper we introduce the smallest equivalence relation ξ∗ on a finite fuzzy hypergroup S such that the quotient group S/ξ∗, the set of all equivalence classes, is a solvable group. The characterization of solvable groups via strongly regular relation is investigated and several results on the topic are presented.