ber 8 • 18 October 2004 452 MJA • Volume 181 Num NHMRC Clinical Trials Centre, University of Sydney, Sydney, NSW. Sarah J Lord, MB BS, MScEpid, Research Fellow; Val J Gebski, BA, MStat, Associate Professor and Principal Research Fellow; Anthony C Keech, MScEpid, FRACP, Deputy Director. Reprints will not be available from the authors. Correspondence: Dr Sarah J Lord, NHMRC Clinical Trials Centre...

Two new Selaginella species (i.e. S. altheae Valdespino and S. squamulosa Valdespino) and a novel combination [i.e. S. philipsonii (Jermy & Rankin) Valdespino] from South America are proposed. Descriptions, illustrations (line drawings and scanning electron micrographs, SEM, images), discussion on taxonomic affinities and information on habitat, distribution and phenology, as well as on conserv...

The l\[oebius fun ct ion Ik on the Ialti ce of k-de n ~e subg ra phs of a co nnccted graph, defin ed in a pre vious pa per, is calcu lated fo r graphs G containing isthmu scs and a rt icul ators. IJ evaluated for the null graph q, is shown to van ish if a contain s a n isthmus, whi Ie for a ny integer q there exist graphs containing a r t iculators for whi ch II (q,) = q. The " lattice of path ...

Analyses of a sediment core from Highstead Swamp in southwestern Connecticut, USA, reveal Lateglacial and early Holocene ecological and hydrological changes. Lateglacial pollen assemblages are dominated by Picea and Pinus subg. Pinus, and the onset of the Younger Dryas (YD) cold interval is evidenced by higher abundance of Abies and Alnus viridis subsp. crispa. As climate warmed at the end of t...

We say θ is strict if ∆θ(H) > 0 for all ∅ ⊂ H ⊂ G. • Xθ is the random subgraph of G↑n where, independently for each {v(i), w(j)} ∈ E(G↑n), P[ {v, w} ∈ E(Xθ) ] = n−θ({v,w}). We have E[ subH(Xθ) ] = n ∆θ(H). If θ is strict, then subG(Xθ) is asymptotically Poisson(1) and subH(Xθ) is highly concentration around its mean for all ∅ ⊂ H ⊂ G. Convention. In the context of lower bounds for SUB(G), the a...