This study investigated the effect of microcredit on profit efficiency small-scale poultry farmers in Oyo State. Multistage sampling procedure was used to select two hundred for study. Data collected were analysed using descriptive statistics, Heckman selection model, stochastic frontier and Tobit models. Result from statistics showed that men (78%) are predominantly involved production. The av...

Research background: In Kenya, maize production has been severely constrained by parasitic pests and weeds such as Striga, stem borer, fall armyworm. The government of Kenya its partners have developed, disseminated, promoted the continual uptake integrated pest management technologies Push-Pull technology (PPT) a way addressing these constraints. Understanding effect on smallholder livelihoods...

The current understanding of astrophysical magnetic fields is reviewed with particular emphasis on nonlinear dynamo theory. Analytic and numerical results are discussed both for small scale dynamos, where helicity is unimportant, and for large scale dynamos, where kinetic helicity is crucial. Large scale dynamos produce small scale magnetic helicity as a waste product that quenches the large sc...

Context. MHD turbulence with Hall effect. Aims. Study how Hall effect modifies the quenching process of the electromotive force (e.m.f.) in Mean Field Dynamo (MFD) theories. Methods. We write down the evolution equations for the e.m.f. and for the large and small scale magnetic helicity, treat Hall effect as a perturbation and integrate the resulting equations, assuming boundary conditions such...