Publications by authors named "Halling B"

Background: Managers have an important role in the creation of workplace conditions that prevent sick leave and lead to high performance. In Lean, the assumption is that people are the source for continuous improvements. There is a need for more knowledge about what kind of leadership can help managers in a Lean context to create workplace conditions for less sick leave and higher performance.

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Escherichia coli vectors were constructed for the production of a protein complex that mimics the native ecdysone receptor (EcR) isolated from Drosophila. The two steroid receptors, ultraspiracle (USP) and EcR, were expressed as truncations, retaining primarily the hormone binding domains. The recombinant receptor complex was able to mimic the pharmacology of the native receptor with respect to both synthetic and natural agonists.

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The use of endogenously created porphyrins as an alternative to photosensitizer injection for photodynamic therapy is a rapidly evolving area of study. One common method to induce porphyrin synthesis and accumulation in cells is the topical, oral, or parenteral administration of 5-aminolevulinic acid, a precursor for heme biosynthesis. Porphyrin accumulation may also be elicited by the use of enzyme inhibitors of the heme biosynthetic pathway.

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The effect of acifluorfen-methyl on tetrapyrrole synthesis in greening chloroplasts of Cucumis sativus was examined. Formation of Mg-proto-porphyrin IX from delta-aminolevulinate was reduced 98% by 10 micromolar acifluorfen-methyl. Conversion of protoporphyrin IX to Mg-protoporphyrin IX was unaffected, but protoporphyrin IX synthesis from delta-aminolevulinate was blocked, indicating a site of inhibition prior to the Mg-chelatase.

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Treatment with acifluorfen-methyl (AFM), methyl 5-(2-chloro-4-[tri-fluoromethyl] phenoxy)-2-nitrobenzoate, inhibited protochlorophyllide synthesis in dark-held, delta-amino levulinic acid-fed, excised cotyledons of cucumber (Cucumis sativus L.). Protochlorophyllide and protoporphyrin IX levels in AFM-treated cotyledons were inversely related and dependent on AFM concentration; as the herbicide dose increased, protoporphyrin IX levels also increased with a concomitant loss of protochlorophyllide.

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The activity of acifluorfen-methyl (AFM); methyl 5-(2-chloro-4-[trifluoromethyl] phenoxy)-2-nitrobenzoate in excised cucumber cotyledons (Cucumis sativus L.) was examined. AFM induced membrane disruption, was significantly greater when etiolated cotyledons were illuminated 16 hours at 150 microeinsteins per square meter per second photosynthetically active radiation versus incubation under illumination of 4-fold greater intensity.

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