Lungesyke trenger planlagte stell

George Stell (1933-2014).

The Cummings-Stell model of associative fluids: a general solution

In a series of publications the Cummings-Stell model (CSM), for a binary mixture of associative fluids with steric effects, has been solved analytically using the Percus-Yevick approximation (PYA). The solution consists in a square well potential of width w, whose center is placed into the hard sphere shell (r < σ): at L = σ/n (n = 1, . . . , 4). This paper presents a general solution, for any ...

Liquid-State Anomalies and the Stell-Hemmer Core-Softened Potential

We study the liquid anomalies arising from the Stell-Hemmer interaction, using molecular dynamics simulations and approximate 2D solutions. We observe in the liquid phase three types of anomalies: (i) An increase in specific volume upon cooling, (ii) an increase in isothermal compressibility upon cooling, and (iii) an increase in the diffusion coefficient with pressure. We relate the anomalies ...

Reduction of Aeromonas hidrophyla biofilm on stainless stell surface by essential oils

This study demonstrates the possibility of using sanitizing detergents based on natural products for the elimination and/or reduction of Aeromonas hydrophila biofilm formed on stainless steel surfaces. The goal of this work was to determine the reduction effect of sanitizing detergents containing essential oils of Thymus vulgaris (thyme) and Cymbopogon citratus (lemongrass) on biofilm formed by...

Stell Dir vor es ist Primarschule und alle haben während zwei Jahren Computer und Internet in der Hosentasche

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...