Gibbs ensemble simulation data for Stockmayer fluids with #.2 = 3.0 and #.2 = 4.0 in the reduced temperature range of 0-77 (resp. 0.80)-0"98 and presented and compared with predictions based on the perturbation theories of Stell, G., Rasaiah, J. C., and Narang, H., 1972, Molec. Phys., 23, 393; 1974, 27, 1393. The description of the reference fluid is improved by applying the modified Benedict-W...

Investigating thermodynamic properties of a model for liquid Ga, we have extended the application of the hard-sphere (HS) perturbation theory to an interatomic pair potential that possesses a soft repulsive core and a long-range oscillatory part. The model is interesting for displaying a discontinuous jump on the main-peak position of the radial distribution function at some critical density. A...

The Schizosaccharomyces pombe mfm1 gene is expressed in an M cell-specific fashion. This regulation requires two HMG-box proteins: the ubiquitous Ste11 transcription factor and the M cell-controlling protein Mat1-Mc. Here we report that the mfm1 promoter contains a single, weak Stell-binding site (a so-called TR-box) that can confer M-specificity on a heterologous promoter when present in eight...

In the last years there has been a growing interest towards categorical models for term rewriting systems (trs's). In our opinion, very interesting are those associating to each trs's a cat-enriched structure: a category whose hom-sets are categories. Interpreting rewriting steps as morphisms in hom-categories, these models provide rewriting systems with a concurrent semantics in a clean algebr...

In mammalian retina the following groups of neurons are to be found: ganglion, amacrine, horizontal, bipolar, photoreceptor and interplexiform cells. Within each class of cells there is a great deal of heterogeneity, which Ramon y Cajal had recognized as far back as 1893. Initial morphological studies, later substantiated by the electrophysiologists, proved beyond doubt that there are subdivisi...

The statistical mechanical approach to Casimir problems for dielectrics separated by a vacuum gap turns out to be compact and effective. A central ingredient of this method is the effect of interacting fluctuating dipole moments of the polarizable particles. At arbitrary temperature the path-integral formulation of quantized particles, developed by Høye-Stell and others, is needed. At high temp...

Three-dimensional (3D) scaffolds hold great potential for stem cell-based therapies. Indeed, recent results have shown that biomimetic scaffolds may enhance cell survival and promote an increase in the concentration of therapeutic cells at the injury site. The aim of this work was to engineer an original polymeric scaffold based on the respective beneficial effects of alginate and chitosan. For...

Approximate theories for the restricted primitive model electrolyte are compared in the light of Totsuji’s lower bound for the energy ~an improvement over Onsager’s!, Gillan’s upper bound for the free energy, and thermal stability requirements. Theories based on the Debye-Hückel ~DH! approach and the mean spherical approximation ~MSA!, including extensions due to Bjerrum, Ebeling, Fisher, and L...

We describe a Monte Carlo scheme for simulating polydisperse fluids within the grand canonical ensemble. Given some polydisperse attribute σ, the state of the system is described by a density distribution ρ(σ) whose form is controlled by the imposed chemical potential distribution μ(σ). We detail how histogram extrapolation techniques can be employed to tune μ(σ) such as to traverse some partic...

Im Schweizerischen Goldau erhielten siebzehn 5.-Klässler während zwei Jahren persönliche Smartphones zur schulischen und ausserschulischen Nutzung. Der Beitrag beschreibt die Projektanlage und liefert erste Beobachtungsresultate als Diskussionsgrundlage für 1:1-Ausstattungen in der Primarschule und als Ausgangshypothesen für weitere Projekte. 1 Ausgangslage: Von der Dynabook-Vision zur ubiquito...