Article discussing power-law time distribution of large earthquakes and a study of the statistical properties of time distribution of seismicity in California by means of diffusion entropy.

Article discussing long- and short-time analysis of heartbeat sequences and the correlation with mortality risk in congestive heart failure patients.

In this article, the authors make use of a wavelet method to extract, from experimental velocity signals obtained in an evolutive flow, the dominating velocity components generated by vortex dynamics.

This article discusses the problem of the equivalence between continuous-time random walk (CTRW) and generalized master equation (GME).

This article discusses three-coordinate Au(I) phosphine complexes.

This article discusses functional and phylogenetic analyses of a conserved regulatory program in the phloem of minor veins, which are developmentally and physiologically distinct from the phloem in the rest of the vascular system.

Article discussing symplastic continuity between companion cells and the translocation stream, and how long-distance transport is controlled by retention and retrieval mechanisms in the phloem.

This article discusses nanoparticle-assisted microwave absorption by single-wall carbon nanotubes.

Article discussing nanotubes in microwave fields and light, emission, intense heat, outgassing, and reconstruction.

This article discusses research that has demonstrated the utility of a rigorously calibrated, molecular mechanics/semiempirical quantum mechanical protocol for developing stereoelectronic (Tolman) maps for phosphine ligands.

In this article, the authors consider the low-frequency limit (homogenization) for propagation of sound waves in periodic elastic medium (phononic crystals).

Article describing the authors' tour through Riddarhyttan, Sweden, to visit the areas where cerium and cobalt were discovered. Maps and photographs of pertinent locations are located as well as a history of the area and the elements discovered there.

Article describing the discovery of Vanadium and tracing the footsteps of the discoverers.

First page of The Hexagon of Alpha Chi Sigma. The blue cover features a black and white drawing of a medieval knight wearing mail and a tunic with a cross motif. He is holding a shield that bears the image of a stone building with flames shooting out of the roof. The word "Riddarhyttan" appears on a banner above the knight's head. Two photographs are arranged to the left of the knight, with text and an image of a computer mouse to the right. The next page includes a table of contents, an editorial, and a list of contributors. Near the bottom of this second page is a piece labeled "On the Cover," which describes the previous page.

Article describing Eugène Demarcay and his discovery of europium. The authors toured Paris, France, in search of locations important to Demarcay, providing the reader with maps and historical information regarding the sites.

This article discusses the use of tree-based models to identify subgroups and increase power to detect linkage to cardiovascular disease traits.

Article discussing a joint approach to detect complexity by combining the Compression Algorithm Sensitive To Regularity (CASToRe) and Complex Analysis of Sequences via Scaling AND Randomness Assessment (CASSANDRA) procedures.

Article generalizing a certain geometric locus problem due to A. Dafina.

Article on enthalpies of vaporization of organic and organometallic compounds, 1880-2002.

This paper is a reply to the comment by Helmstetter and Sornette titled "Intercluster correlation in Seismicity" which addresses an important point in a paper written by the authors that needs to be clarified.

Paper discussing the search for the low-complexity sequences in prokaryotic and eukaryotic genomes and how to derive a coherent picture from global and local entropy measures.

Paper discussing the detection of invisible and crucial events.

Paper discussing cognitive scale-free networks as a model for intermittency in human natural language.

Article discussing intermittency, scale-free networks, and a dynamical model for human language complexity.