A realistic description of the variability in bacterial growth and division is critical to produce reliable predictions of safety risks along the food chain. Individual-based modeling of bacteria provides the theoretical framework to deal with this variability, but it requires information about the individual behavior of bacteria inside populations. In this work, we overcome this problem by est...

In this article we present the development of a set of opto-mechanical components (a kinematic mount, a translation stage and an integrating sphere) that can be easily built using a 3D printer based on Fused Filament Fabrication (FFF) and parts that can be found in any hardware store. Here we provide a brief description of the 3D models used and some details on the fabrication process. Moreover...

heparin was isolated from whole clam tissue marcia opima . purification of multimilligram quantities of heparin from this tissue sample permitted a thorough examination of its anticoagulant activity characterization, which was partially purified by fractionation by anion exchange chromatography using deae cellulose column. the isolated crude and partially purified fractionated sample showed met...

A simple model is presented for foam fractionation. The basis of the that liquid fraction profile across column known quasistatically at any instant in time, and only varies gradually as height itself varies. Using suitable boundary conditions, provides a relation between flux through instantaneous height. surface active material can then also be determined. makes it possible to explore how des...