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Predator odors are non-intrusive natural stressors of high ethological relevance. Animals are daily challenged with stressors of varying intensity and it is essential for their survival to respond to a wide range of threats. Behavioral and hormonal responses and changes in the level of medial hypothalamic c-fos mRNA were examined in Brandt's voles(More)
Predator odors are non-intrusive natural stressors of high ethological relevance. The objective of this study was to investigate the processing of a chronic, life-threatening stimulus during repeated prolonged presentation to Brandt's voles. One hundred and twenty voles were tested by repeated presentation of cat feces in a defensive withdrawal apparatus.(More)
This paper presents an effective method for solving stochastic problems commonly encountered in structural engineering and applied mechanics. Design of experiments is conducted to obtain the response values of interest, where Chebyshev nodes are applied to collect discrete samples. Then Chebyshev polynomials are applied to approximate the univariate(More)
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