This study examines a new set of estimators using stratified random sampling to estimate the finite population mean.The research forms a comprehensive class sword of estimators by using additional data from extremely thoroughly correlated auxiliary variables.The properties of these estimators, including their biases and mean square errors, have bee
Circumsporozoite protein (CS) is a leading vaccine antigen for falciparum malaria, but is highly polymorphic in natural parasite populations.The factors driving this diversity are unclear, but non-random assortment of the T cell epitopes TH2 and TH3 has been observed in a Kenyan parasite population.The recent publication of the crystal structure of
Bruchus pisorum is an insect pest causing major damage to pea seeds worldwide.Control is difficult and limited resistance is available.In this work we studied the effects of pollen and pod source on insect fecundity and oviposition by comparing resistant and susceptible Pisum spp.accessions and non-host (Lathyrus sativus and Vicia faba) species.A f
Abstract After coal extraction in underground mining, progressive fracturing occurs in both roof and floor strata, resulting in stress redistribution within these rock layers.Considering the fractures in the strata at roof and floor, an elliptical stress arch was introduced.This concept analyzed how the shape and structure of this arch evolved when