In the field of natural and man-made disasters, fire has played a predominant role. A report is presented of fire disasters in the twentieth century, with a chronological analysis of different worldwide typologies.

We report here the complete genome sequence of Rhizobium sp. strain ACO-34A, isolated from Agave americana L. rhizosphere. No common nod genes were found, but there were nif genes for nitrogen fixing. A low average nucleotide identity to reported species supports its designation as a novel Rhizobium species that has a complete ribosomal operon in a plasmid.

Sample reactivity measurements performed at the fast-thermal coupled facilities RRR/SEG (RC Rossendorf) and STEK (ECN Petten) have been re-analyzed using the JNC standard route for reactor calculation JENDL-3.2 // SLAROM / CITATION / PERKY. The C/E-values are compared with results obtained with the competitive European scheme JEF-2.2 // ECCO / ERANOS. When using different input libraries, codes...

A new steroidal saponin was isolated from the leaves of Agave shrevei Gentry. Its structure was established as 26-(beta-D-glucopyranosyloxy)-22-methoxy-3-(O-beta-D-glucopyranosyl-(1-->2)O-[O-beta-D-glucopyranosyl-(1-->4)-O-[O-beta-D-glucopyranosyl-(1-->6)]-O-beta-D-glucopyranosyl(1-->4)-beta-D-galactopyranosyl]oxy)-(3beta,5alpha,25R)-furostane. The structural identification was performed using ...

More and more integration systems use ontologies to solve the problem of semantic heterogeneities between autonomous databases. To automate the integration process, a number of these systems suppose the existence of a shared domain ontology a priori referenced by the local ontologies embedded in the various sources. When the shared ontology evolves over the time, the evolution may concern (i) t...

In this paper, (1) we describe our ongoing work aimed at improving the Eighteenth-Century Collections Online (ECCO) database’s utility as a comprehensive and high-fidelity resource, and (2) we discuss some preliminary experiments based on ECCO.

This investigation reveals the capability of Agave lechuguilla for trivalent and hexavalent chromium removal from aqueous solutions. Experimentation included pH profile, time dependence, adsorption capacity (K(F) and Q(L)), adsorption intensity (n and R(L)) and saturation capacity (q(s)) studies. Batch experiments were conducted at 22( composite function)C to characterize and model the adsorpti...