Peter Sterner

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Laboratory and field tests demonstrated that 2,2-dibromo-3-nitrilopropionamide was an effective slimicide for use in papermaking systems and cooling towers. It was also effective as a bactericide for soluble oil emulsions. Acute toxicity tests showed that its hydrolysis at pH 9 and 23 C yielded products that were relatively nonhazardous to fathead minnows.
We provide a unified description of (weighted) alpha shapes, beta shapes and the corresponding simplicialcomplexes. We discuss their applicability to various protein-related problems. We also discuss filtrations of alpha shapes and touch upon related persistence issues.We claim that the full potential of alpha-shapes and related geometrical constructs in(More)
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