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BACKGROUND
Fruit flies are internationally important quarantine or invasive pests of many fruits and vegetables and can cause serious economic losses. Long‐term reliance on insecticides for controlling these pests has led to increasing resistance to multiple insecticides; hence, a new agent is needed. In this study, the acute toxicity and sublethal effects of the novel insecticide broflanilide on...
Seven clones of colchicine-induced tetraploid purple coneflower (Echinacea purpurea L.) plants were grown on a farm for comparison with their corresponding original diploid plants. In the first year of cultivation, the plant height, number of capitula, and inflorescence (branched flower stalk) were significantly reduced in all of the tetraploid plants, while the length-to-width leaf ratio, pollen...
The fracture morphologies of various high-strength type polyacryonitrile (PAN)-based carbon fibers were examined by emission scanning electronic microscopy (SEM) observation, and analyzed based on the Griffith-Irwin’s criterion. The results showed the fracture morphologies of PAN-based high strength carbon fibers were largely controlled by the rate of crack propagation. The fracture mechanisms for...
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