Objective To observe the toxicity of Pulsatilla chinensis (Bunge) Regel saponins (PRS) against Oncomelania hupensis (0.hupensis).Methods O.hupensis snails were
Gradient vector flow (GVF) is an effective external force for active contours,but its isotropic nature handicaps its performance.The recently proposed gradient
The Zhutian and Dafeng formations (Upper Cretaceous) of the Heyuan Basin in northeastern Guangdong Province, China, have produced thousands of dinosaur e
Objective To investigate the toxic effect of sodium fluoride (NaF) on the nematode Caenorhabditis elegans (C.elegans).Methods Adult C.elegans were exposed to di