A model using the rigid body multi-cellular framework (RBMCF) is implemented to investigate the mechanisms of buckling of an epithelial monolayer. Specifically, the deformation of a monolayer of epithelial cells which are attached to a basement membrane and the surrounding stromal tissue. The epithelial monolayer, supporting basement membrane and stromal tissue are modelled using two separate vertex dynamics models (one for the epithelial monolayer layer and one for the basement membrane and stromal tissue combined) and interactions between the two are considered using the RBMCF to ensure biologically realistic interactions.
View Article and Find Full Text PDFWe combine an off-lattice agent-based mathematical model and experimentation to explore filamentous growth of a yeast colony. Under environmental stress, Saccharomyces cerevisiae yeast cells can transition from a bipolar (sated) to unipolar (pseudohyphal) budding mechanism, where cells elongate and bud end-to-end. This budding asymmetry yields spatially non-uniform growth, where filaments extend away from the colony centre, foraging for food.
View Article and Find Full Text PDFThis article focuses on performative articulations of critiques of psychiatry, with two forms of demonstration in particular: First, the Mad Pride Parades, which have been held in various German cities since 2013, and second actions by the "Blaue Karawane" in Bremen, a movement that emerged in the 1980s in the wake of the dissolution of a psychiatric clinic. Although they are situated in different temporal and local contexts, both rely on forms of street protest to question the demarcation between 'normal' and 'mad' and to promote the equal recognition of mental alterity. A detailed examination of the forms of action highlights the importance of carnivalesque celebration, provocation and spectacle for both forms of psychiatric critique.
View Article and Find Full Text PDFExudates of nonhealing wounds contain drivers of pathogenicity. We utilized >800 exudates from nonhealing and healing wounds of diverse etiologies, collected by 3 different methods, to develop a wound-specific, cell-based functional biomarker assay. Human dermal fibroblast proliferation served as readout to (i) differentiate between healing and nonhealing wounds, (ii) follow the healing process of individual patients, and (iii) assess the effects of therapeutics for chronic wounds ex vivo.
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